Blow Molding Machine Manufacturer in China

  • High Productivity with Servo Motor
  • Siemens PLC with Festo Cylinder
  • Faster Installation with Easy Operation
  • High Output with More Smoothly
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Manufacture Different Plastic Bottles with Blow Molding Machine

  • PET juice bottles
    Drink bottles
  • Engine oil and lubrication container
  • Detergent bottles
  • Detergent bottles, engine oil and lubrication container
  • Mineral water bottles
    Siemens Servo Motor on blowing machine
  • PET Bottles
    Milk bottles
  • Mineral water bottle, drinking water bottle
  • Juice Bottle, Milk Bottle
  • Disinfectant bottle
  • Editable Oil bottle

This serious blowing machine is special for produce big volume PET bottles 3–20 liters with automatic preform loading and servo system, more power saving.

  • Suitable for Bottle Volume: 5-10-20 liter
  • Production Capacity: 700-1,500BPH
  • Delivery Time: 30-40 days
  • Payment Term: T/T or L/C
  • SC-F2,SC-F4,SC-F6,SC-F8 Full automatic PET bottle Blowing machine
  • SC-F5L-1,SC-F5L-2,SC-F10-1,SC-F10L-2 Large volume bottle blowing machine

This serious blowing machine is special for produce big volume PET bottles 3–20 liters with automatic preform loading and servo system, more power saving.

  • Suitable for Bottle Volume: 5-10-20 liter
  • Production Capacity: 700-1,500BPH
  • Delivery Time: 30-40 days
  • Payment Term: T/T or L/C

This kind blowing machine is designed for make wide neck jar 50mm —120mm for honey, candy bottles or PET jar.

  • Suitable for Wide Neck Bottle Volume: 100ml–5 liter
  • Production Capacity: 700-1,500BPH
  • Delivery Time: 30-40 days
  • Payment Term: T/T or L/C
  • Automatic Wide Neck PET Bottle Blowing Machine SC-H1C5L, SC-H2C2L
  • Semi automatic PET Bottle Blowing Machine SC-2000, SC-5000-1, SC-5000-2, SC-10L

This kind of blowing machine is manual operated, workers load preform, take out preform and put into blower by hand, the speed base on the experiences of workers.

  • Suitable for Bottle Volume: 100ml–5 liter–10 liter
  • Production Capacity: 700-1,500BPH
  • Delivery Time: 20–30 days
  • Payment Term: T/T or L/C

This kind of blowing machine is designed with 4 cavity for bottle 50ml to 1500ml, its middle speed with very costly price.

  • Suitable Bottle Volume: 50ml–1500ml
  • Production Capacity: 1,500-2,000BPH
  • Delivery Time: 25–30 days
  • Payment Term: T/T or L/C
  • 4 Cavity Semi Automatic Bottle Blowing Machine with Preform Automatic feeding SC-1500-4
  • PET 3-5 Gallon (20L) Semi automatic PET Bottle Blowing Machine SC-5G

This kind of blowing machine is designed for make PET 5 gallon bottles, it equipment with inner heater to heat the preform average to ensure high quality gallon.

  • Suitable for 3–5 gallon PET bottle, 10-20 liter.
  • Production Capacity: 60-120BPH
  • Delivery Time: 25–30 days
  • Payment Term: T/T or L/C

Welcome to Visit our Blow Molding Machine Workshop

Easier than ever to operate and to maintain.

PET Blowing machine workshop

Sinco, Your Best Blow Molding Machine Producer in China

The Blow Molding Machine is simple and flexible to operate, continuous and uninterrupted production, small footprint, high productivity, and considerable savings in heating energy and air consumption.

  • Free Spare Parts
  • English Manual book
  • Video Guide
  • Technician Installation in site

develop PET blowing machine

Sinco, the professional Blow Molding Machine for Bottle Manufacturer in China

As a professional blow molding machine manufacturer and supplier in China, Sinco tends to supply your one-stop solution for your packing of petroleum, cosmetics, chemicals, pharmaceutical, food,beverage, toys and auto-parts. Sinco blow molding machine can be used to produce your bottle, container with material of HDPE, PP, ABS,PC. Base on 20 years manufacturing experiences , we can supply you blow molding machine with high quality and competitive price.

Sinco blow molding machine is introducing advanced technology from Japan, Germany with high level design and structure, this will keep your production for bottle, container smoothly and stability with our blow molding machine. Sinco start to make blow molding machine for sale  from 2000 for customers to produce plastic products. We have different models of machine from small size to super large scare which can meet you various production demand from 0.1 liter to 50 liter. Sinco can give you a costly price for blow moulding machine base on large sales each year.

Our blow molding machine is designed moved down and up with platen and tie bars strengthened to make movement more stable and smoothly. The machine equipment with PLC and Human-Machine interface adopted from Siemens and the parison system from Japan Moog, those can make sure our blow molding machine has a long working time and easy for your to find spare parts in your city.  The clamping system with hydraulic unit make sure our machine with high level stability to make your production continually.

This blow molding machine is with auto deflashing and save your labor cost, and can be install with conveyor to take out bottles or containers to connect with your filling line. Also if you want more automatically, we can install robot arm to take the products out from our blow molding machine. Above all, our blow molding machine is more powerful, energy saving, fast production and working stable, just send us your bottles, containers drawing, we can design suitable machines for you with costly price.

 

A Brief Introduction about Sinco
Chapter 1: What is Sinco blow molding machine ?
The first procedure is to have an elaboration: what is a blow molding machine?
Blow molding machine is a kind of equipment that uses blow molding process to make plastic particles into hollow containers (such as plastic beverage bottles). The more common models include one-time hollow extrusion blow molding machines using PP(polypropylene) and PE(polyethylene), using PET(or PEIT, Polyethylene terephthalate), PC(polycarbonate board) Or PP double molding injection stretch blow molding machine, and the newly developed multi-layer hollow extrusion blow and stretch blow molding.
We can briefly introduce the production principle of this machine: a machine in which plastic pellets (softened into liquid) or preforms are blown into bottles through certain technological means.
Nowadays, the environmentally friendly plastic made of PET is generally used.
There is another device with the same name: after spraying liquid plastic, the wind blown by the machine is used to blow the plastic body into a certain shape of the mold cavity to make a product, that is, a hydraulic blow molding machine. But this one mainly produces products such as large plastic barrels, and is also a sub-product of the blow molding machine.


Chapter 2: How Sinco blow molding machine working ?
1.Blowing principle
The blowing process of the blow molding machine is divided into two parts
2.Preheat
The preform (embryo) is irradiated by an infrared high-temperature lamp to heat and soften the bad (embryo) body of the preform (embryo). In order to maintain the shape of the bottle mouth, the preform (embryo) mouth does not need to be heated, so a certain The cooling device for cooling operation.
3.Molding
In this stage, the preheated preform (preform) is placed in the blow mold that has been completed, and the interior is inflated with high pressure. Blow and pull the preform (embryo) into the required bottle.
The automatic blow molding machine combines the two operations of bottle blowing through the operation of the manipulator, eliminating the need to manually put the preheated preform into the blowing mold. Greatly accelerate the rate of production.

Blow Molding Machine
The process flow of the blow molding machine
The blow molding process of the blow molding machine is a two-way stretching process. In this process, the PET chains are extended, oriented and arranged in two directions, thereby increasing the mechanical properties of the bottle wall and improving the tensile, tensile and impact strength. And has very good air tightness. Although stretching helps to increase the strength, it should not be overstretched. The stretch-inflation ratio should be controlled: the radial direction should not exceed 3.5 to 4.2, and the axial direction should not exceed 2.8 to 3.1. The wall thickness of the preform should not exceed 4.5mm.
Bottle blowing is carried out between the glass transition temperature and the crystallization temperature, generally controlled between 90 and 120 degrees. In this interval, the PET exhibits a highly elastic state, and becomes a transparent bottle after rapid blow molding and cooling and setting. In the one-step method, this temperature is determined by the length of the cooling time during the injection molding process (such as the Aoki blow molding machine), so the relationship between the injection and blowing stations must be connected.
The blow molding process includes: stretching, one blow, and two blows. The three actions have a short time, but they must be well coordinated, especially the first two steps determine the overall distribution of the material and the quality of the blown bottle. Therefore, it is necessary to adjust: stretching start timing, stretching speed, pre-blowing start and end timing, pre-blowing pressure, pre-blowing flow, etc, if possible, it is best to control the overall temperature distribution of the preform, bottle The temperature gradient of the inner and outer walls of the blank.
During the rapid blowing and cooling process, induced stress is generated in the bottle wall. For gas-filled beverage bottles, it can resist internal pressure, which is beneficial, but for hot-filled bottles, it must be fully released above the glass transition temperature.
Chapter 3: Sinco blow molding machine applications
1.Manufacture plastic control types, such as plastic drink straws, trachea, oil pipe
2.Manufacture plastic children’s toys, such as balls, sticks and other hollow objects
3.Manufacture plastic containers, such as plastic beverage bottles, plastic fuel tanks, and cans


Chapter 4: Why Sinco Blow molding machine is reliable for your plastic bottle production (Merits and Characteristics)
Does the Blow molding machine composed of the German brand Siemens PLC( Programmable Logic Controller, which controls the whole functions) and Festo Cylinder sound a lot more reassuring? But these two aspects are just as a foundation supplied for our Blow molding machine, and there are still more thriving merits that deserve to be mentioned:
Lower price
lessened power consumption
easier operation and maintenance
easier and faster start-up and installation
better quality and accuracy
higher speed and rigidity
greater stability
More smoothly
efficient yield and productivity with Servo Motor
faster Installation
longerservice life
stronger safety level
flexible manufacturing
free molds design
And nowadays, all parts of the world are advocating that machines and products should be energy-saving and environmentally friendly, and our Blow molding machine will naturally not go against the principle of protecting the earth.
First and foremost, we designed a reasonable structure design, an advanced hydraulic clamping system,using special heating lamps and servo system, the precise design of heating tubes height and PET preforms spacing, and the servo conveying system with high accuracy of position, which makes the work more efficient and runs more smoothly. And, This machine adopts rotary perform loading system, which is very stable and reliable and applicable of different size of preform;
What’s more, we will conduct tests and inspections before it comes out to reduce the waste of defective products;
At length, On-time delivery with strictly planned production and recording.
In addition, lower maintenance costs, less noise, more energy-saving and environmental protection, the advanced hydraulic mould clamping system helps the machine runs stablely, the servo conveying system with high accuracy of position, quick speed and good stability.

Working process

Purchase

Chapter 5: How to choose suitable blow molding machine from Sinco
Before buying, we need to know your appeal so that we can provide you with more convenient and faster choices
1.If you have bottle or container photos will be much helpful for us to judge which model of machine is suitable for you
2.Supply production information such as bottle or container volume, diameter and height
3.Tell your production capacity is necessary, it mean how many bottles or one day plan to produce how many pieces/bottles
4.Power supply, if same as here 3Phase 380V,50Hz
5.Output: Choose according to your own production output requirements, and you can calculate the approximate output requirements
6.Whether it is hot-filled or not: Some blow molding machines can perform heat-resistant work, such as producing some plastic bottles for holding hot drinks, and can also prevent plastic bottles from deforming during the filling process.
7.Price: You can give the price area that you can accept and filter during this period.
8.After-sales service: Choose a machine with after-sales guarantee, there will be professionals to guide and repair, such as our product machine, three-year warranty can make you feel more at ease to use.
9.Air source: The blow molding machineneeds to be used with an air source because it contains pneumatic devices. The combination of air compressor and blow molding machine is very important. They must meet each other’s needs. Insufficient air pressure or excess waste of resources will not achieve the goal of maximizing energy efficiency and saving costs.
10.Quality issues: This is the most important step in purchasing goods. For example, you can understand the quality management level of the manufacturer. For manufacturers that have passed ISO9000 quality management system certification and safety certification, their product performance and technology are trustworthy.
11.The choice of machine: the choice between automatic and semi-automatic blow molding machine.
Different design architecture
The automatic blow molding machine is all completed by mechanical direct automatic operation. The automatic blow molding machine is finally blown into bottles through the steps of automatic preform loading, preform transmission, heating, mold clamping, pre-blowing, stretching, and air blowing. The semi-automatic blow molding machine requires manual intervention for loading, conveying, and unloading the bottle, which is likely to cause damage to the operator.
Different performance and output
Fully automatic blow molding machines are generally stable. The equipment works for a long time, and the output can continue to be kept as if it is turned on. However, due to long hours of work, the operators have limited energy and cannot keep up with the operation process, and the output is getting lower and lower. .
The actual sales price is different
The selling price of automatic blow molding machine in the market is slightly higher than that of semi-automatic blow molding machine. The market price of semi-automatic blow molding machine is less than 100,000, and the price of automatic blow molding machine is around 120,000-140,000. The price of a four-automatic blow molding machine is about 24-250,000, and the price of a six-automatic blow molding machine is about 450,000-480,000. For a fully automatic blow molding machine, the more the number of cavities, the blow molding machine The more expensive the price.


The advantages of automatic blow molding machine:
1.The servo drive system is designed with optimized structure developed by the company, which integrates mold opening and closing, mold clamping, bottom mold lifting and other actions. The blowing cycle is greatly shortened, the output is increased, and the effect of high efficiency and energy saving is achieved.
2.Adopt a constant temperature heating control system, invented patented technology, so as to achieve the effect of energy saving, set up a blowing system and a waste heat exhaust system to basically ensure a constant temperature in the blowing area.
3.Development of an efficient and stable billet feeding system, invention patented technology, the phenomenon of card-free preforms appears, realizing a fast, efficient and stable billet feeding effect.
4.The whole machine adopts the modular design concept, adopts the modular design concept, later maintenance, replacement of changed parts, faster and more convenient, effectively reducing maintenance costs.
5.energy saving, environmental protection, high efficiency, can save more than 20% of energy consumption, reasonable price, worry-free after-sales service!
The semi-automatic blow molding machine is mainly used for the blowing of small-volume plastic bottles. The semi-automatic blow molding machine has the characteristics of energy saving, small area, low investment, fast effect and reasonable structure. It is widely used in packaging products such as food, medicine, cosmetics, pesticides, chemical reagents and soft drinks.

Blowing Machine
The advantages of semi-automatic blow molding machine:
1.The host is equipped with a microcomputer program controller, which is easy to operate.
2.The heater adopts imported SCR to control the far infrared heating tube; the transmission part adopts a three-phase motor and is driven by a frequency converter.
3.The stretching part of the seal uses two left and right air cylinders; the stretching length is increased and decreased in one step. The delay time of blow molding can be adjusted freely, which is conducive to product molding.
4.The exhaust gas inside the machine is discharged through the muffler to reduce noise.
5.The host is equipped with gas storage tanks and high and low pressure relief valves.

5 gallon blowing machine
Chapter 6: How to buy blow molding machine from Sinco
1.We will conduct preliminary negotiations with customers to understand customer needs.
2.After the customer recognizes our company, our products and equipment, the customer will provide us with the samples that the customer really expects.
3.We will sign a contract with the customer, and a payment process will be indicated on the contract, and we receive samples and a 30% advance payment from the customer, and then our company designs and produces a complete set of equipment based on the customer’s samples. Production will be completed in a month or two months.
4.We will shoot a video to our customers to inform our production results (due to the new crown epidemic restriction on-site inspection), and then the samples we produce will be mailed to customers by express.
5.Waiting for the customer to confirm whether the sample meets expectations, and we will make relevant modifications and adjustments if it does not; after the customer meets the requirements, the remaining 70% of the payment will be credited to the company account.
6.When the company receives the remaining payment, it will ship the equipment, take the customer to receive the goods, and confirm that it is correct, then the purchase can be completed.


After sale
Chapter 7: The commission of Sinco blow molding machine after buy
We can disassemble the commission and introduce it: including installation, commissioning, training, and after-sales service.
1.Installation: We will send technicians to the foreign site to guide customers to install the structure of the hydropower plant.
2.Debugging: Our technicians will debug the machine to ensure smooth use afterwards.
3.Training: Provide relevant training to customer’s technical staff.
4.After-sales service: Refer to Chapter 8 for this point. (We have made a detailed explanation for you)
Chapter 8: After sales service from Sinco Company
1.The another significant side is the installation problem. Our engineers could offer on-site installation for you. If it is inconvenient, there are detailed installation videos and remote video guidance installation. We also have English manual and free spare parts to provide you with additional convenience.
2.And also we select world famous brand parts, it is easy for customers to look for spare parts.

World Famous Brand PartsWorld Famous Brand Parts
3.After-sales service: three-year warranty, free accessories for two years (which is included in the three-year warranty). We send easy broken parts with machine for one years, after one year, we can send by couriers immediately.
4.7/24 online service which could always save your time.
5.Certainly, if you want, you can also send someone here for related technical learning.
Chapter 9: Maintenance of Sinco Blow molding machine
To be honest, everything should be properly maintained and maintained in order to extend its service life and reduce problems.
1. Before turning on the plastic blow molding machine every shift, lubricating oil must be added to each movable part once. (Manipulator, manipulator guide rail, mold opening and closing guide rail)
2.The swing arm can be added once every (3-4) days. Large chains and small chains of the heating machine can be used once a month. Always look at the reducer of the main engine and whether the reducer of the heating machine is short of oil. The main engine bearing can be added once a month (2-3).
3.Before the consumption, it ought to have an inspection of whether the moving parts are strong and whether the screws are loose and scattered, especially whether the center of the impact force transmission and the belt transmission part are abnormal.
4. Inspect whether the high-pressure gas source, low-pressure gas source, power source, and water source are normal.
5. Check whether each emergency stop switch, safety door switch, maintenance installation detection switch is normal.
6.Examine whether the heating head enters the embryo, and the embryo drop part works normally. If the insert is not in place, you can adjust the mounting nut of the insert.
7.Test whether each pneumatic component can leak air, it can be dexterous.
8.The checkpoint should also in whether the triplet is leaking abnormally, whether it can be re-inserted, and whether the water cup is too full.
9. When the solenoid valve of the plastic blow molding machine is abnormal, it should be cleaned in time
10. Plastic blow molding machine molds must be cleaned and polished regularly every day.
11. When opening the upper and lower pressure air source switches, the transition must be slow to prevent the air source from being replaced too quickly and the dirt will be blown into the solenoid valve. At the same time, open the exhaust valve for 30 seconds to ensure that the air is clean.
12.When starting the plastic blow molding machine, it must be sure that the machine part is in good condition, there is no one inside the machine, and there is no foreign matter. Especially the handle part, so as not to hurt people. At the same time close the safety door.
13.When starting the machine, you must start the motor first, and start the heating machine for 30 seconds to prevent voltage shaking. Make sure that the cooling water is turned on before starting the heating.
14. After heating start (2-3) minutes, wait until the oven temperature rises evenly, press the embryo button. At the same time, the blowing must be turned on, otherwise the blowing will not be possible.
15. When the plastic blow molding machine is in operation, it is necessary to pay close attention to whether the machine has any abnormal noise, and to find out early and stop it in time to solve it.
16.When there is an emergency, you can press the emergency stop button to press the brake. Then, based on the analysis of the on-site status, the problem was solved quickly.
17. After normal operation, do not extend any part of the body into the machine to avoid injury by the manipulator. If the machine has abnormal noise, it can slow down and stop the observation.
18. After normal consumption, the operator should always observe the quality of the bottle, so as not to affect the quality of the bottle blowing due to the shaking of the voltage or other reasons.
19.During maintenance, press the absolute maintenance button on the touch screen to ensure safe maintenance. If you need to manually observe the replacement of each cavity individually, please pay attention to the position of the manipulator. At the same time, you must understand the function of the single button, and then replace it. Make sure to cause the expected trouble by accident.
20. After each repair, you must clean up tools and screws to avoid leaving them in the machine and affecting the normal operation of the machine.


Preparation of equipment before usage
Chapter 10: Preparation work before starting the blow molding machine
1.The materials used for extrusion blow molding should meet the required drying requirements, and further drying is required if necessary.
1.According to the product type and size, choose the specifications of the machine head, and install the machine head in the following order: install the machine head flange, mold body, die, porous plate and filter screen.
2.Connect the compressed air pipe, install the core mold electric heating rod and the head heating ring.
Check and turn on the water system. Adjust the gap between all parts of the die to be even, and check whether the center line of the main machine and the auxiliary machine are aligned.
1.Start the extruder, mold clamping device, manipulator and other operating equipment, and perform no-load operation, check whether each safety emergency device is operating normally, and remove the fault in time.
2.Set the temperature of the extruder head and each heating section according to the provisions of the process conditions and perform heating section by section, and use the scraps to test the integrity of each heating section, check whether there is no heating phenomenon; wait for the temperature of each part to reach the setting After the temperature, the temperature remains constant for 0.5~
3.On the programmable controller, set the thickness of the wall at each point according to the process regulations.
4.Generally, the outer layer should be opened first to prevent the material from flowing back from the outer layer due to excessive pressure after the inner layer is opened. The frequency of the feeding flow is gradually increased from small to large to prevent the opening frequency from being too large, causing the screw and the screw to be screwed due to the low temperature.

blow molding machine factory
Chapter 11. Some essential requirements for the equipment
1.Space requirements
The minimum work and maintenance space required by the equipment is: 12*9m, 5m high. (Excluding workshop transportation and lifting space)
1.General environmental and ground requirements
Ground requirements: C30 reinforced concrete: 300mm thick.
Add an air curtain or curtain to separate the door of the bottle blowing room from other spaces;
No water on the ground, and epoxy floor paint (other similar treatments can also be used)
Arrange floor drains in the room at the lowest point on the ground
Wall tiles should be pasted below 1.2m above the ground;
1.Air requirements
(1) The air cleanliness reaches the 100,000 level requirement, the air is closed, and the air is clean.
(2) Anti-mold, moisture-proof, waterproof, shock-proof, dust-free, and pollutant-free, the air is filtered in order of primary and medium efficiency.
1.Temperature requirements
(1) The temperature is around 24℃± 2℃ (min15℃, max 35℃), and the humidity is 60-70%.
(2) Appropriate ventilation facilities must be installed above the heating furnace.
1.Lighting requirements
300W is recommended for lighting 6m×6m. To ensure the thermal balance of the system, the air volume depends on different models.
1.Compressed air requirements
(1) The on-site compressed air pipeline should be reliably cleaned and purged before entering the blow molding machine interface (The purge time should not be less than 2 hours. The pipe should be knocked during the purge, and the welding position and corners should be knocked mainly).
(2) In order to ensure the quality of the air source, the compressed air pipeline is required to use stainless steel seamless pipes.
(3) Blowing compressed air is divided into low-pressure operating compressed air and process (High pressure) compressed air (including pre-blowing and main blowing), The air source pressure fluctuation does not exceed ± 0.1MPa, the particles contained in the compressed air granules, water, and oil should meet the relevant regulations of GB/T 13277.1-2008 (recommendation: install a terminal filter at the compressed air inlet of the blow molding machine).
Points of attention for installation and replacement of equipment

Sinco blow molding machine
Chapter 12. How to install the blow molding machine
(After completing the requirements for the installation of the blow molding machine, you can read the following)
Installation is divided into fixed installation and mobile installation.
1.Fixed installation is to transport the machine to the foundation level, install the anchor screws, initially adjust the level, and then pour concrete into the anchor holes, and then fine-tune the level after the concrete is dry. It can also be fixed directly on the foundation floor with expansion bolts. The machine tilt angle is not more than 3°
2.The method of fine adjustment of the level is to use a level to measure on the upper plane of the lock template and the dovetail groove of the pen holder. After the vertical and horizontal level is adjusted, the anchor screws are evenly tightened.
3.For mobile installation, the equipment can be moved at any time. Just place the anti-vibration pad (standard size, but not standard accessories of Leshan) on the empty position of the anchor bolt, use a level to correct the level on the upper edge of the template, adjust the anti-vibration pad, and then tighten the nut. The tilt angle of the machine is not more than 3°.
Chapter 13. How to change the mold (take 006 blow molding machine as an example)
1.Preparations before mold change
(1)Arrange mold change according to the production plan and check whether the mold gasket meets the requirements.
(2Check whether the oil pipe joints are in good condition and whether the mold oil circuit is unblocked.
1.2.Inspection work at the initial site
(1) Notify the power duty machine repairer to suspend air supply.
(2) Check whether the device host is in shutdown state.
(3) Check whether the hot oil engine is stopped.
(4) Check the oil temperature: mold change can only be performed when the temperature is sufficiently cooled.
1.3.Operation steps
(1) Loosen the bottom mold, remove it, and place it properly.
(2) Loosen the fastening mold screws, remove the mold, and clean the mold body and shell.
(3) Install the mold that needs to be replaced and tighten the screws.
(4) Adjust the mold change gap of the mold (0.10-0.20)
(5) Install the bottom mold and adjust the height of the bottom mold to ensure the working clearance requirements.
(6) Observe whether the mold opening and closing state is normal and there is no noise.
(7) Adjust the stretch rod according to different bottle types.
(8) Adjust the gap (2.3—2.9) of the stretch rod according to different requirements.
(9) Replace the output wheel of the product, install it accurately and without bottle pinning.
Common problems and solutions in the process of using the equipment


Chapter 14: Common problem solutions during plastic bottle production
1.Poor transparency of PET bottles
reason:
The heating temperature is too high
Heating time is too long
Compressed air contains water
The injection embryo tube itself is opaque
The embryo tube design is not suitable
The inflation ratio is too small
Solution:
1.Cool downn byu77
2.Shorten the heating time
3.Use a dryer to remove water
4.Improve the quality of embryo tube, select materials and increase the dryness of raw materials
5.Improve embryo tube size design
6.Reduce the diameter of embryo tube
7.2. The PET bottle appears pearly and white
reason:
1.The heating temperature is too low
2.Uneven wall thickness of embryo tube
3.The embryo tube is too thick, and the heating and penetration are insufficient
Solution:
1.Heat up or slow down the revolution speed
2.Improve embryo tube quality
3.Reduce the thickness of the embryo tube, or try to increase the outer cover of the heating device to increase the surface temperature of the embryo tube
4.The position of the bottom nozzle of the PET bottle is offset

Sinco Workshop
reason:
1.Start blowing too early
2.The stretch rod is not down to the end
3.The extension rod is offset from the center line of the bottle axis
4.The embryo tube wall thickness is uneven or the injection density is uneven
5.Uneven heating
Solution:
1.Delay the blowing time or increase the descending speed of the stretching rod
2.Adjust the position of the magnetic pole switch
3.Adjust the position of the stretch rod
4.Improve embryo tube quality
5.Improve heating conditions, or check whether there is any problem with the rotation of the embryo tube
6.Uneven wall thickness of PET bottles
reason:
1.The position of the stretching rod is not in the center of the embryo tube
2.The blowing holes are asymmetrical and the hole diameter is not uniform
3.The stretching ratio is too low or the expansion ratio is too small
4.The embryo tube does not rotate in the heating furnace
5.Uniform or uneven injection density
Solution:
1.Adjust the position of the stretch rod
2.Adjust the position and diameter of the blowing hole
3.Increase the stretching ratio or inflation ratio
4.Check the rotation device 5. Improve the quality of the embryo tube
5.The upper part of the bottle is too thick
reason:
1.The temperature of the upper part is too low
2.The position of the mold exhaust hole is too far from the upper part
3.The stretching ratio is too low
4.The inflation ratio of the upper part of the bottle is too low
5.The speed of the stretching rod is too slow
Solution:
1.Heat the upper part
2.Adjust the position of the exhaust hole
3.Increase the stretching ratio
4.Change the shape of the bottle
5.Adjust the stretching rod speed
6.The bottom of the bottle is too thin
reason:
The bottom of the bottle is too thin
Solution:
1.Delay the start of blowing time
2.Reduce the bottom temperature
3.Increase the bottom thickness of the embryo tube
4.Bottle clamping line is obvious
reason:
1.The clamping pressure is not enough
2.The sealing time is too early
3.The mold problem
4.The size of the tooth mouth of the embryo tube does not match the mold
Solution:
1.Increase the clamping pressure, adjust the angle of the clamping support rod (<5 degrees)
2.Move the clamping stroke switch position back
3.Repair the mold or check the mold assembly position, such as whether the guide post is loose or whether the mold is not been compressed
4.Repair mold tooth mouth fit position
5.The bottom of the bottle or the neck of the bottle is rolled up and accumulated
reason:
1.The delayed blowing time is too long.
2.One roll is good.
3.The temperature at the material accumulation is too low.
4.The air pressure for action is unstable, which affects the descending speed of the stretch rod.
Solution:
1.Shorten the delayed blowing time or reduce the descent speed of the stretching rod.
2.Reduce the air volume on one side of the reel.
3.Increase the heating temperature of the embryo tube.
4.Add an air storage tank to the action air source or shorten the air supply pipe. road
5.Stretch perforation at the bottom of the bottle
reason:
1.Insufficient temperature and no penetration
2.Delayed stretch time is too long
3.Stretch ratio is too large
4.The bottom of the embryo tube is too thin
5.The stretched rod head is too sharp
Solution:
1.Warm up
2.Shorten the delay stretch time
3.Reduce the stretch ratio
4.Improve the design of the bottom of the embryo tube
5.Round the stretch head
6.Bottom blasting
reason:
1.Delayed blowing time is too short
2.Delayed mold opening time is too short
3.Temperature is too high
4.Exhaust valve does not work
Solution:
1.Lengthen the delayed blowing time or increase the descending speed of the stretch rod
2.Lengthen the delay opening time
3.Cool down
4.Clean the exhaust valve with gasoline
5.The bottom of the bottle is not full
reason:
1.The temperature of the bottom of the bottle is too high
2.The vent hole at the bottom of the mold is insufficient or uneven
3.The stretch rod does not reach the bottom
4.The design of the stretch rod head does not conform to the shape of the bottom of the embryo tube
5.The blowing pressure is insufficient
6.Insufficient valve flow
7.Poor design of bottom curve
Solution:
1.Reduce the temperature at the bottom of the heating zone or use a damp cloth to reduce the temperature at the bottom of the embryo tube
2.Increase the number of vent holes and make it evenly distributed
3.Adjust the stretch rod to the bottom of the bottle
4.Replace the stretch rod head
5.Increase the blowing pressure
6.Use gasoline to clean the blow valve
7.Increase the bottom curve and streamline design of the bottle


In addition, there are some easily overlooked issues, we will also list them for you
1.No feeding at the feeding position:
Several situations need to be checked:
Is the hopper empty?
If yes: need to add materials as soon as possible
If not: Please check whether the control contactor of the hoist is energized. If it is energized, quickly check whether the motor is energized and loaded, because this situation is likely to be caused by the preform (embroid) stuck in the lift With, the easiest way at this time is to manually help improve.
If you check that the control contactor of the hoist is not energized, please check whether the preform detection electric eye and the reflector are not in the same straight line.
1.Feeding old card feed tray:
This situation is a more difficult problem. From experience, if the length of the preform (preform) is longer and the weight is larger, then this phenomenon is relatively rare.
1.The bottle cannot be taken out of the mold after it is blown.
First of all, you should open the mold, open and close the mold manually, if it is normal, run it in the dry running state; if it is normal, please check your exhaust time setting, if the exhaust setting is normal, and only one blow at a time If it is faulty, then it can be judged that it is the exhaust valve. Please open the exhaust valve to check the condition of its springs and seals (another phenomenon of this kind of malfunction is that the exhaust sound is loud or there is a sound of dirty exhaust).
If you are encountering a situation where many molds are produced normally and accidentally, the mold cannot be opened. Please check whether the clamping pin has a segmented screw in it. In addition, please check whether the clamping force is too large. Standard readjustment.
1.bottles are always pinched
Whether the position of the manipulator is misaligned.
1.Two manipulators collide
In this case, you need to manually reset the manipulator again, which is caused by misalignment

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