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Will EVA small glue applicator and sponge automatic glue applicator block glue

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why is the feed port of injection molding machine blocked
reward points: 0 –
question time: 15:09, May 24, 2010
I have a 100t injection molding machine, which often blocks the feed port in the production process. There is a mass of glue in the feed port, which can only be taken out with a sharp tool. I don’t know why. Please consult an expert. Don’t be grateful
according to the phenomenon you said, the temperature at the feeding port is too high. First, the temperature at the rear end of the barrel is too high. Second, the cooling water at the rear end of the barrel is blocked.
– May 24, 2010 16:30
is there glue leakage at the inlet? If not, shoot back or increase the temperature at the nozzle.
– May 24, 2010 18:22
1. The circulating water at the blanking port is blocked, resulting in high-temperature caking
2. The material pipe is worn, and the reverse glue flows out.
– 2010-5-24 21:12
maintenance of injection molding machine injection molding machine has the ability to form plastic products with complex appearance, accurate size or dense texture with metal inserts at one time. It is widely used in national defense, electromechanical, automobile, transportation, building materials, packaging, agriculture, culture, education and health and all fields of people’s daily life. Injection molding process has good adaptability to the processing of various plastics, high production capacity and easy to realize automation. Today, with the rapid development of plastic industry, injection molding machine plays an important role in both quantity and variety, so it has become one of the fastest growing and largest production types of plastic machinery
xingluoqibu, a plastic processing enterprise in China, is spread all over the country, and the technical level of equipment is uneven. The equipment of most processing enterprises needs technical transformation. In recent years, the technological progress of China’s plastic machine industry is very significant, especially the gap between the technical level of injection molding machine and foreign famous brand products has been greatly reduced, and significant improvements have been made in control level, internal quality and appearance modeling of products. By selecting domestic equipment and with less investment, we can also produce products with the same quality as imported equipment. These have created conditions for the technological transformation of enterprises
to have good products, you must have good equipment. The wear and corrosion of equipment is a natural law. If people master this law, they can prevent or reduce the wear and corrosion of equipment, prolong the service life of equipment and ensure the integrity rate of equipment
in order to strengthen the use, maintenance and management of plastic machinery, relevant departments in China have formulated relevant standards and implementation rules, All equipment management departments and production enterprises are required to ensure the management and use of equipment “Scientific management, correct use, reasonable lubrication, careful maintenance, regular maintenance and planned maintenance can improve the intact rate of the equipment and keep the equipment in good condition.
this paper has written the relevant knowledge and technical data of the maintenance and repair of the injection molding machine, which can be used as a reference for the managers and technicians of the equipment management department and production enterprises.
the plastic injection molding technology has developed from the end of the 19th century to the beginning of the 20th century according to the die-casting principle It is one of the most commonly used methods in plastic processing. The method is applicable to all thermoplastics and some thermosetting plastics (about 1 /3 of the total plastics)
1.1 working principle of injection molding machine
the working principle of injection molding machine is similar to that of syringe for injection. It is the process of injecting the plasticized molten plastic (i.e. viscous flow) into the closed mold cavity with the help of the thrust of screw (or plunger), and taking the product after curing and shaping
injection molding is a circular process, and each cycle mainly includes: quantitative feeding – melting and plasticizing – pressure injection – mold filling and cooling – mold opening and taking parts. After taking out the plastic part, close the mold again for the next cycle
1.2 structure of injection molding machine
injection molding machine is divided into plunger injection molding machine and screw injection molding machine according to the plasticization mode; According to the transmission mode of the machine, it can be divided into hydraulic type, mechanical type and hydraulic mechanical (connecting rod) type; According to the operation mode, it is divided into automatic, semi-automatic and manual injection molding machines
(1) horizontal injection molding machine: This is the most common type. The clamping part and the injection part are on the same horizontal centerline, and the mold is opened along the horizontal direction. Its features are: low fuselage, easy to operate and maintain; The center of gravity of the machine is low and the installation is stable; After the products are ejected, they can fall automatically by gravity, which is easy to realize full-automatic operation. At present, most injection molding machines in the market adopt this type
(2) vertical injection molding machine: its clamping part and injection part are on the same vertical centerline, and the mold is opened along the vertical direction. Therefore, it covers a small area, is easy to place inserts, is convenient to load and unload molds, and the materials falling from the hopper can be plasticized more evenly. However, the products are not easy to fall automatically after ejection, and must be removed by hand, which is not easy to realize automatic operation. Vertical injection molding machines are suitable for small injection molding machines. Generally, injection molding machines below 60g are used more, and large and medium-sized machines are not suitable
(3) angle injection molding machine: its injection direction is on the same surface as the die interface. It is especially suitable for plane products in the machining center where gate traces are not allowed. Its floor area is smaller than that of horizontal injection molding machine, but the inserts put into the mold are easy to fall obliquely. This type of injection molding machine is suitable for small machines
(4) multi mode rotary table injection molding machine: it is a special injection molding machine with multi station operation. Its feature is that the clamping device adopts rotary table structure, and the mold rotates around the rotating shaft. This type of injection molding machine gives full play to the plasticizing capacity of the injection device, which can shorten the production cycle and improve the production capacity of the machine. Therefore, it is especially suitable for the production of large quantities of plastic products with long cooling and setting time or requiring more auxiliary time due to the placement of inserts

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