Single-cylinder injection molding machine with one-line pre-molding motor arranged in middle

Abstract

The injection molding machine comprises a guide rail support, an injection table linear guide rail is installed on the guide rail support, an injection table front plate, an injection table middle plate and an injection table rear plate are installed on the injection table linear guide rail, and two pull rods which are symmetrical in position are installed between the injection table front plate and the injection table rear plate. The injection table middle plate is connected to the pull rod in a sliding mode, the pull rod penetrates through the injection table middle plate, a machine barrel is installed at the left end of the injection table front plate, an injection molding pipeline is arranged in the machine barrel, linear single-cylinder injection is achieved, acting force response is fast, and the condition that a screw is subjected to injection force is good; the whole injection structure is simple, low in manufacturing cost and convenient to maintain; compared with a traditional single-cylinder injection structure, a spline transmission shaft bearing axial transmission and radial transmission at the same time is omitted through the middle pre-molding motor structure, and the structure is more durable. The problems that two-cylinder acting force is unbalanced and an injection piston rod is easy to break due to existing commonly-used double-cylinder injection are solved.

Description

technical field [0001] The invention relates to the field of injection molding machines, in particular to a single-cylinder injection molding machine with a single-cylinder in-line premolding motor. Background technique [0002] Injection molding machine, also known as injection molding machine or injection machine, is a thermoplastic material Or thermosetting plastics are the main molding equipment that uses plastic molding molds to make plastic products of various shapes. [0003] The twin-cylinder injection molding machine is currently the most widely used injection molding machine. It is powered by two oil cylinders that are synchronously pushed at the same time. However, it is difficult to control the thrust of the two oil cylinders to be the same and stable. There may be thrust fluctuations. And once there is a thrust difference, it will cause the guide rail and the screw to be deflected by force, thereby damaging the screw or the guide rail. Contents of the inventi...

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Problems solved by technology

[0004] In order to overcome the defects in the above-mentioned prior art, the present invention provides a single-cylinder injection molding machine with a single-line pre-molding motor in the middle. The one-line single-cylinder injection has fast response to force and good injection force on the screw, which overcomes the existing problems. The commonly used double-cylinder injection is likely to cause unbalanced force between the two cylinders, and the problem that the injection piston rod is easy to break

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