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Device and method for producing connecting pipe fitting for plastic compound pipe and application

A technology for connecting pipe fittings and production devices, which is applied in the field of plastic connecting pipe fitting production devices, can solve the problem of inability to produce connecting pipe fittings, etc., and achieves the effects of direct acting force, simple transmission mechanism, and increased product density

Active Publication Date: 2020-02-14
SHANDONG DONGHONG PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with conventional horizontal injection molding machines, the working pressure of the production device designed by the present invention is more than doubled; it can effectively solve the problem that conventional horizontal injection molding machines cannot produce steel mesh skeleton plastic composite pipes with a size above DN500.

Method used

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  • Device and method for producing connecting pipe fitting for plastic compound pipe and application
  • Device and method for producing connecting pipe fitting for plastic compound pipe and application
  • Device and method for producing connecting pipe fitting for plastic compound pipe and application

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0039] first embodiment ,refer to figure 1 with 2 , an example of a production device for connecting pipe fittings of plastic composite pipes designed by the present invention, including: a hydroforming device, an extrusion device and a storage device;

[0040] Wherein, the hydraulic forming device includes a vertical hydraulic device and a forming die, and the forming die for forming the connecting pipe fittings is set in the hydraulic device; specifically, the vertical hydraulic device includes: a hydraulic press 1, an upper mold base 2 , the lower mold base 3, the slide rail 4 and the hydraulic machine motor 5, the parts are assembled and distributed in the upper and lower levels, the lower mold base 3 is located at the bottom of the entire hydroforming device, supports the overall device and is fixed on the ground; the slide rail 4 is fixed On the top of the lower die base 3, the slide rail 4 is perpendicular to the lower die base and connects the lower die base with th...

no. 2 example

[0045] second embodiment , there are bolt holes evenly distributed in the circumferential direction at the end face of the cylinder body of the storage cylinder, and the hydraulic motor and the cylinder body of the storage cylinder are sealed and connected by high-strength bolts; one end of the hydraulic rod inside the hydraulic motor is connected to the cylinder body of the storage cylinder The surface is an interference-sealed connection, and extends into the interior of the cylinder body of the storage cylinder, so the cylinder body of the storage cylinder and the hydraulic motor have the same coaxiality and the same relative height; at the same time, in order to avoid vibration during the operation of the motor, the motor and the storage cylinder Cylinder blocks are all located on the top of the accumulator base and are supported by it. During the operation, through the forward rotation and reverse rotation of the motor, the oil inlet and oil return of the liquid medium a...

no. 3 example

[0046] third embodiment ,refer to figure 1 with 2 , the hydraulic press 1 is a four-column hydraulic press, and the slide rails 4 are four cylindrical slide rails 4, which are circumferentially and vertically fixed on the top of the lower mold base 3.

[0047] It should be noted that the technical advantage of this vertically designed hydraulic device is that under the action of the motor of the hydraulic machine, the upper mold base can move up and down in the vertical direction and obtain the required direct force; generally When producing large-diameter, thick-walled, and heavy-weight composite pipe fittings, the hydraulic press designed in this way can provide a clamping force of not less than 30 MPa, which can ensure the upper and lower molds of large-diameter, thick-walled products during the high-pressure injection molding process. The lower two cavity surfaces are always tightly bonded, without any abnormalities affecting production and processing, such as material ...

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Abstract

The invention relates to the field of plastic connecting pipe fitting producing devices, in particular to a device and method for producing a connecting pipe fitting for a plastic compound pipe and application. According to the structure of the device, a hydraulic forming device comprises a vertical hydraulic device and a forming die, and the forming die for forming the connecting pipe fitting isarranged in the hydraulic device; an extruding device comprises an extruder, an extruder screw and an extruder nozzle; the extruder screw is arranged in a machine cylinder of the extruder, a heating device is laid outside the machine cylinder, and the extruder nozzle is arranged at the head portion of the machine cylinder; according to the structure of a material storing device, a material storingcylinder communicates with the extruder nozzle; a heating device is laid outside the material storing cylinder; a material storing cylinder motor is arranged in the material storing cylinder, and theother port of the material storing cylinder communicates with the forming die; and the material storing cylinder motor is used for driving a molten raw material to be injected into the forming die. By means of the designed producing device, the shortcoming that a conventional horizontal injection molding machine cannot product large-caliber high-pressure full-plastic connecting pipe fittings canbe overcome.

Description

technical field [0001] The invention relates to the field of production devices for plastic connecting pipe fittings, in particular to a production device for connecting pipe fittings of plastic composite pipes, a production method and an application thereof. Background technique [0002] The information disclosed in the Background of the Invention is only intended to increase the understanding of the general background of the invention, and is not necessarily to be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art. [0003] Steel mesh skeleton plastic composite pipe is favored by the pipeline engineering community for its superior properties such as corrosion resistance, high pressure bearing, and light weight; it is known that the maximum pressure-bearing grade of the pipe in the relevant standards can reach 7.0MPa, of which DN500 and above caliber The steel wire mesh skelet...

Claims

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Application Information

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IPC IPC(8): B29C45/47B29C45/60B29C45/62B29C45/74B29C45/26B29C45/20B29C45/18B29C48/625B29C48/80B29C48/285B29C48/793B29C48/30B29C48/68B29C45/17
CPCB29C45/47B29C45/60B29C45/62B29C45/74B29C45/26B29C45/20B29C45/18B29C48/625B29C48/802B29C48/285B29C48/793B29C48/30B29C48/68B29C45/17B29L2023/00
Inventor 王晓峰孔智勇胡召元
Owner SHANDONG DONGHONG PIPE IND
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