automatic pet blowing machine

What is a hot runner for a fully automatic blow molding machine? Hot runner is a way to ensure that the plastic in the runner and gate remains molten by means of heating. Since there are heating rods and heating rings near or in the center of the runner, the whole runner from the nozzle outlet to the gate of the injection molding machine is in a high temperature state, so that the plastic in the runner is kept molten, and it is generally not necessary to open the runner to take out the condensed material after the shutdown, and it is only necessary to heat the runner to the required temperature when the machine is started again. Therefore, the hot runner process is sometimes referred to as a hot collector system, or as runnerless molding. Advantages and disadvantages of hot runner technology Hot runner technology has the following advantages compared to conventional cold runner: 1) Save raw material and reduce cost. 2) Shorten molding cycle time and improve machine efficiency. 3) Improve surface quality and mechanical properties of products. 4) No need to use a three-plate automatic blow molding machine that can use a point gate. 5) Economically mold individual products with a side gate. 6) Improve automation. 7) Use a needle valve gate to control gate freeze. 8. Consistent quality of injection molded parts from multi-cavity automatic blow molding machines. 9. Improved surface aesthetics of injection molded products. However, every technology has its own drawbacks, hot runner technology is no exception: 1, automatic blow molding machine structure is complex, high cost, high maintenance costs. 2, it takes a period of time to start the injection molding process to stabilize, resulting in more open price scrap. 3, melt leakage, heating element failure, the impact on product quality and production schedule.

The third disadvantage above, through the purchase of quality heating elements, hot runner plates and nozzles and the use of careful maintenance, can reduce the emergence of these adverse conditions. Plastic automatic blow molding machine manufacturing standards require a what plastic automatic blow molding machine factory, plastic automatic blow molding machine factory and injection molding manufacturers, I think they are just a customary name or verbal terms, the substance is not much difference, are more Automatic Pet Blow Molding Machine  or less the same, if you really want me to say plastic automatic blow molding machine factory, plastic automatic blow molding machine factory and the difference between injection molding plant I really hard to say, but If you want me to say that they are the same, I can still talk about it. These automatic blow molding machine manufacturers of automatic blow molding machine manufacturing standards can be the same, these years with the development of the automatic blow molding machine industry, manufacturers in order to improve the quality of automatic blow molding machine grade, Z maximum to reduce the quality of automatic blow molding machine complaints, the delivery of customer satisfaction of automatic blow molding machine, we have some common problems in the manufacture of automatic blow molding machine made into a standard, the operation is strictly in accordance with the requirements of this. 1. For mold embryos smaller than 2020, a and b plates need to do pry pits between them; for mold embryos larger than 2020, all templates including ejector plates need to do pry pits between them.

2. The mold embryo guide pillar guide sleeve should be processed with exhaust groove to prevent the guide pillar guide sleeve from being strained.  3. Automatic blow molding machine shall not have sharp coers, need to chamfering treatment. Except for the specially specified places.  4. Inner mold and automatic blow molding machine parts without consent shall not have bued welding.  5. The periphery of the fully automatic blow molding machine must have an exhaust slot at the appropriate location, please refer to the fully automatic blow molding machine design manual for exhaust slot specifications.  6. As far as possible to avoid the use of sanding machine on the automatic blow molding machine grinding, if you have to use the grinding machine processing, must use the oil stone to save light (especially the parting surface) 7. The processing patte on the non-glued surface (wire cutting, milling machine, CNC gong machine, spark machine) must also be shined with oil stone.  8. All inteal mold materials, mold embryo grade requirements must be based on the order, or the design review process officially confirmed technical requirements for procurement. Proof of material must be provided, and in the case of hard mold, heat treatment report must be provided. All relevant certificates.  9. All automatic blow molding machine's front and rear inner mold, inserts, line position, slant top, straight top (push block), shovel chicken, etc. need to be processed on the bottom or side of a waist round pit, the material name and hardness engraved out.  10. Line position, pushing block, shovel chicken, chirping nozzle and other important wear parts must be nitride hardening treatment.  11. Line position must have positioning. Positioning methods are slingshot, wave beads, standard line clamps, etc., the specific need to follow the requirements of each project. Line position need to have pressure bar, wear plate. Pressure bar, wear plate must use wear-resistant hard material, need to add oil groove.  12. The line position inclined guide pillar must be pressed, can not be rotated and loosened. The end of the inclined guide column must be processed into a hemispherical or conical table shape, which is conducive to ensuring the normal movement of the line position. If there are two or more inclined guide pillars in the same row, the length, size and inclination of the inclined guide pillars must be the same.  13. The slanting top seat must use wear-resistant hard material. Slant top must be processed oil groove, slant top seat generally with 2510 or cr12 hardened to hrc40-45 degrees, because the slant top seat is subjected to impact loading, so can not be too hard or it will break, and in all the right angle position chamfering c angle. Need to have beveled top guide plate (bronze). Must not be buished.  14. Flow channel and into the glue bit need to save light.  15. Ejector pin, sizer, bibimbap, beveled top and ejector plate should be engraved with the corresponding identification code for easy installation. If on the product, the ejector pin position is not horizontal, the ejector pin holder needs to be made "d" type or use anti-rotation pin key positioning.

A wide range of hollow blow molding machines must be paid attention to when we use them to select the appropriate model for production. What we expose here is a class and we can look at its properties. The position and distance of the lamps in the heating zone can be adjusted according to the different shapes and sizes of the preforms in order to adjust the position and distance of the reflector in the different heating zones , to achieve the best heating effect.

2. The hollow blow molding machine uses a constant pressure thermostat to control the infrared lamp to heat the preform to ensure that the embryo is heated correctly, accurately Blow molding machine and stably, independent of the input voltage change.
3. According to the needs of different products, the hollow blow molding machine can be equipped with two-chamber double-stretching cylinder, three-chamber three-cylinder, four-chamber four-cylinder or six-cylinder six-cylinder drawing cylinder design. Adjust the machine or try the different needs of the mold.
4. Control system with automatic alarm barrier function; when the operation is wrong or faulty, the computer will display and issue an alarm.
5. The mold replacement of the hollow blow molding machine is convenient and convenient, and there is no need to adjust the mold thickness within the mold capacity range of the corresponding machine.
6. The hollow blow molding machine blows 30ml-5L cold and hot filling plastic bottles or other plastic containers.
7. The production process is fully automated, and multiple machines can also be combined to form an automatic production line. The entire production process does not require manual contact with preforms or finished bottles.

Maintenance and maintenance of the hydraulic blow molding machine 1. No material is added at the feeding level: several situations need to be checked: Whether the hopper has run out of material, if so: it needs to be added quickly; no: please check whether the control contactor of the hydraulic blow molding machine is in the correct state. If it is powered on, check whether the motor is powered on automatic blow molding machine  and loaded, because this situation is likely to be caused by the preform (preform) stuck on the lifting belt. At this time, the easiest way is to manually lift it. If you check that the control contactor of the hydraulic blow molding machine is not energized, please check whether the preform detection electric eye is not on the same line with the reflector.​​

2. Feeding the old card feeding tray: This situation is a headache. From experience, if the length of the preform (preform) is longer and the cutting weight is larger, then this phenomenon is relatively rare. 3. The bottle cannot be taken out of the mold after blowing.​​

First, the mold should be opened, and the mold should be opened and closed 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 the failure occurs every time the bottle is blown, then it can be judged that it is the problem of the exhaust valve, please open the exhaust valve to check its spring and seal condition (this There is also a phenomenon that the exhaust sound is relatively loud or there is a sound of unclean exhaust).​​

If you encounter a situation where the mold cannot be opened by chance due to the normal production of many molds, 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.​​

4. The bottle is always pinched

Whether the position of the manipulator is misplaced.​​

5. Two manipulators collide

In this case, it is necessary to manually reset the manipulator, which is caused by dislocation. This machine with cladding and liquid level line can blow products below 5L, such as oil pots, wine pots, soy sauce pots and other products. Adopt hydraulic system, computer control, double-station blowing, stable quality.

The blow molding machine industry should also take the road of brand strategy development and insist on putting quality first. In foreign countries, the technical content of large-scale blow molding machines is improving day by day. Most of the enterprises are lingering on low-level equipment. At the same time, there are many enterprises in one area producing, with high repetition, fierce price competition, and weak profits.

 At present, my country's blow molding machine manufacturing industry has gradually developed from an imitation model where the original business owner focused on assembly Blow molding machine  and sales to a patte with a complete layout of design and parts manufacturing. However, blow molding machine products often have single functions, bulky products, and high energy consumption. Only in the improvement of production efficiency and product energy saving, automation, and refinement can progress be made.

With the continuous injection of emerging subjects, my country's large-scale blow molding machine industry has entered a period of relative saturation of the main body. In the absence of a perfect mechanism, the injection of different subjects can only make the development situation of my country's blow molding machine industry intolerable. Optimism is mainly due to severe structural polarization.

As far as the future development direction is conceed, it is mainly reflected in several aspects: technological improvement will be the main area for the development and competition of domestic blow molding machines in the future; domestic blow molding equipment consumption is changing from pure equipment purchase to equipment use and peace of mind. Development, the future will test the comprehensive strength and rapid response ability of blow molding machine suppliers; domestic blow molding machine users will quickly enter the switching process of equipment energy saving, automation, and multi-layer requirements; product quality determines the survival of the fittest. The stability of the blow molding machine and the uniformity of the wall thickness determine the competitiveness of the equipment.

The blow molding machine industry is becoming differentiated in the competition, the application of high-tech and the exploration of cutting-edge technology, constantly carry out self-innovation, change the backward business philosophy and development thinking, and move towards the "three modeizations" of integration, efficiency and intelligence. direction development.