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Pressure type pressure release valve of film blowing machine

A pressure relief valve, pressure type technology, applied in the direction of safety valve, balance valve, valve device, etc., can solve the problems of affecting the production process, poor sealing performance of the piston plate, and change of the relief valve pressure relief threshold, so as to improve the The effect of using efficiency

Pending Publication Date: 2022-03-29
德清县康福塑料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a pressure relief valve for a film blowing machine, one purpose of which is to have the ability to improve the sealing performance of the piston plate, and to solve the problem of poor sealing performance at the piston plate, which causes the pressure relief threshold of the pressure relief valve to appear. Changes that affect the entire production process; another purpose is to solve the problem that the pressure relief valve can be fixed for pressure relief, and when adjusting the production process, it is necessary to replace the corresponding pressure relief valve to achieve the effect of improving the efficiency of the device.

Method used

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  • Pressure type pressure release valve of film blowing machine
  • Pressure type pressure release valve of film blowing machine
  • Pressure type pressure release valve of film blowing machine

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as Figure 1-6As shown, the present invention provides a pressure relief valve for a film blowing machine, comprising a pressure relief valve body 1 and a gas pipe 2, the lower surface of the pressure relief valve body 1 is fixedly connected to the outer surface of the gas pipe 2, and the pressure relief valve A vent pipe 11 is fixedly connected to the outer surface of the valve body 1, a baffle plate 12 is fixedly connected to the inner wall of the pressure relief valve body 1, and a piston plate 13 is movably connected to the inner wall of the pressure relief valve body 1, and the piston plate 13 The outer side is provided with a sealing mechanism 3, and the top of the piston plate 13 is provided with a pressure relief regulating mechanism 4. The sealing mechanism 3 includes an elastic rubber sealing ring 31, and the inner side of the elastic rubber sealing ring 31 is fixedly connected with the side of the piston plate 13. The elastic rubber sealing The inside of...

Embodiment 2

[0035] Such as Figure 1-6 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: preferably, an elastic herringbone plate 321 is movably connected to the inner wall of the elastic pressure ball 32, and one end of the elastic herringbone plate 321 is movably connected to a connecting rod 322, the outer surface of the elastic herringbone plate 321 is movably connected with a telescopic rod 323, and one end of the telescopic rod 323 is fixedly connected with a fixed pulley 324, and the inwall of the elastic pressure ball 32 is fixedly connected with a slideway 325, and the outer surface of the fixed pulley 324 It is movably connected with the outer surface of the slideway 325, the two ends of the slideway 325 are respectively fixedly connected with the limit blocks, and the outer surface of the fixed pulley 324 is fixedly connected with a spring one 326.

[0036] In this embodiment, when the elastic pressure ball 32 is elastically deformed b...

Embodiment 3

[0038] Such as Figure 1-6 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: preferably, the lower surface of the elastic pressure dividing plate 42 is fixedly connected to one end of the spring two 41, and the lower surface of the thread adjusting plate 43 is connected to the elastic pressure dividing plate 42 The upper surface of the threaded adjustment plate 43 is fixedly connected to the inner wall of the pressure relief valve body 1, and the outer surface of the threaded adjustment plate 43 is fixedly connected with a rotating handle 44.

[0039] In this embodiment, when it is necessary to adjust the pressure relief valve value of the pressure relief valve, the rotating handle 44 is first rotated to drive the threaded adjustment plate 43 to move along the inner wall of the pressure relief valve body 1, correspondingly compressing the spring 2 41 to To different degrees, the adjustment of the pressure relief threshold value of the...

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PUM

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Abstract

The invention discloses a pressure type pressure release valve of a film blowing machine, and relates to the technical field of film blowing machines, the pressure type pressure release valve comprises a pressure release valve body and an air pipe, the lower surface of the pressure release valve body is fixedly connected with the outer surface of the air pipe, the outer surface of the pressure release valve body is fixedly connected with an air release pipe, and the inner wall of the pressure release valve body is fixedly connected with a baffle. Through cooperation of the elastic rubber sealing ring, the elastic pressure ball, the organic rebound block and the soft sliding ball, the elastic rubber sealing ring generates a certain degree of mutual extrusion effect in the pressure release valve body, firstly, the soft sliding ball is extruded to generate elastic deformation, and the sealing performance of the connecting position is preliminarily enhanced; and when an elastic pressure ball and an organic rebounding block are subjected to extrusion force, elastic deformation occurs, elastic acting force opposite to the extrusion force is generated, the outer surface of an elastic sealing rubber ring is pushed to abut against the inner wall of the pressure release valve body tightly, and the sealing performance between a piston plate and the pressure release valve body is guaranteed.

Description

technical field [0001] The invention relates to a pressure relief valve, relates to the technical field of film blowing machines, in particular to a pressure relief valve for film blowing machines. Background technique [0002] The film blowing machine is a machine that heats and melts plastic particles and blows them into films. There are many kinds of film blowing machines, such as PE, POF, PVC and so on. The new material blown out with brand new particles, the color is uniform, clean, and the bag stretches well. The film blowing machine has high requirements for wind pressure during the film blowing process, and high-quality films depend on constant wind pressure, so the use of pressure relief valves in the production process is particularly important. The pressure relief valve is a valve that uses the internal pressure of the installation system to automatically open and close to keep the pressure in the installation system constant. It is a relatively common valve and...

Claims

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Application Information

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IPC IPC(8): F16K17/06
CPCF16K17/06F16K17/0413F16K17/0433F16K17/0473
Inventor 吴建平
Owner 德清县康福塑料制品有限公司