Injection molding machine for industrial production

Abstract

The invention relates to the technical field of industrial production equipment and discloses an injection molding machine for industrial production. The injection molding machine for industrial production comprises a barrel, wherein a feeding hopper is fixedly mounted on the top of the barrel, a seal ring is fixedly mounted on the back surface of an inner ring of the barrel, a screw is movably connected to the inner ring of the seal ring in a sleeved manner, exhaust holes are formed in the middle parts of the top and bottom of the barrel, an injection port is formed in one end of the barrel,a screw head is fixedly mounted at the end, located at the injection port, of the screw, a non-return ring is movably connected to an outer ring at the end, located at the injection port, of the screwin a sleeving manner, a spiral blade is spirally and fixedly mounted on the outer surface of the screw, a cylindrical hole is formed in the middle of the screw, a rubber cushion head is movably connected to the inner side of the end, located at the injection port, of the cylindrical hole formed in the screw in a sleeved manner, an internal shaft is fixedly mounted in the middle of the rubber cushion head, and a spiral slide bar is movably connected to the side, close to a position of the injection port, of the spiral blade in a sleeving manner. The injection molding machine is high in injection molding efficiency and quality of injection molding products.

Description

technical field [0001] The invention relates to the technical field of industrial production equipment, in particular to an injection molding machine for industrial production. Background technique [0002] The demand for plastics in industrial production is very large, so the equipment requirements for producing plastics are getting higher and higher to ensure high efficiency and high quality of plastic production. The existing equipment for producing plastics is injection molding machines, of which horizontal injection molding The injection molding machine is the most commonly used one. The injection molding machine uses a screw to transport the material added at one end of the barrel to the other end for injection molding. The middle part of the barrel heats and melts the material. Although the application of injection molding machines is very common, there are still With some questions: [0003] 1. The screw used in the injection molding machine only uses a cylindrical ...

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Problems solved by technology

[0003] 1. The screw used in the injection molding machine only uses a cylindrical rod outer ring to fix the helix and install the helical blade. The metering injection is realized through the reciprocating expansion and rotation of the screw. However, after one injection, the screw needs to move backward. The non-return ring at the head of the screw presses the molten material in the barrel into the metering head of the barrel under the action of back pressure. In practice, after the back pressure is fixed, the non-return ring will have wear and other losses, which will cause melting. The change of the back pressure on the plastic will affect the inaccuracy of the metering amount at this time, causing the plastic product after injection molding to fail to meet the standard;

[0004] 2. There are three sections in the barrel, and the section in the middle is the section for heating and melting the plastic. When the plastic is in the position between the feeding section and the heating section, it will be subject to temperature changes. The change is large and it will be easy This will cause the material to stick to the screw blade and burnt at this part, which will not only affect the subsequent continuous feeding of the sea lake, but also cause the quality of the plastic to decline

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