Unlock instant, AI-driven research and patent intelligence for your innovation.

PVC pipe manufacturing method

A manufacturing method and technology for PVC pipes, which are applied in the field of PVC pipe manufacturing, can solve the problems of increased labor intensity of staff, low work efficiency, complicated operations, etc.

Active Publication Date: 2019-10-22
浙江宏途电气科技有限公司
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the more important steps in the production of PVC pipes is extrusion molding. In the extrusion molding process, when encountering large pieces of material, that is, large pieces of plastic strips, it is difficult to force the performance of the feeding port or the feeding machine. Send bulk materials to the barrel of the extruder, so that the staff needs to screen the bulk materials and crush them, and then place them in the feeding port or in the feeder. This operation is complicated and increases the labor intensity of the staff. , time-consuming and labor-intensive, low work efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • PVC pipe manufacturing method
  • PVC pipe manufacturing method
  • PVC pipe manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]A PVC pipe manufacturing method is characterized in that: comprising: a, raw material mixing: put various raw materials in the mixer, make the raw materials uniformly mix through the steps of hot mixing and cold mixing, and collect the mixed raw materials in the dry material Standby in the warehouse; b. Plasticization: put the material into the feeder, put the raw material into the feed port of the extruder through the feeder, and the material in the extruder passes through the shearing of the screw and external heat After the average plasticization, the material enters the extruder head, and the material is given a certain shape in the head, and leaves the extruder after further plasticization; c, shaping: the pipe after the initial molding of the head first enters the spray Sizing box, the pipe passes through the sizing sleeve, and vacuumizes the sizing box by spraying the outer wall of the pipe, so that the pipe is subjected to internal pressure and clings to the inner...

Embodiment 2

[0041] A PVC pipe manufacturing method is characterized in that: comprising: a, raw material mixing: put various raw materials in the mixer, make the raw materials uniformly mix through the steps of hot mixing and cold mixing, and collect the mixed raw materials in the dry material Standby in the warehouse; b. Plasticization: put the material into the feeder, put the raw material into the feed port of the extruder through the feeder, and the material in the extruder passes through the shearing of the screw and external heat After the average plasticization, the material enters the extruder head, and the material is given a certain shape in the head, and leaves the extruder after further plasticization; c, shaping: the pipe after the initial molding of the head first enters the spray Sizing box, the pipe passes through the sizing sleeve, and vacuumizes the sizing box by spraying the outer wall of the pipe, so that the pipe is subjected to internal pressure and clings to the inne...

Embodiment 3

[0043] A PVC pipe manufacturing method is characterized in that: comprising: a, raw material mixing: put various raw materials in the mixer, make the raw materials uniformly mix through the steps of hot mixing and cold mixing, and collect the mixed raw materials in the dry material Standby in the warehouse; b. Plasticization: put the material into the feeder, put the raw material into the feed port of the extruder through the feeder, and the material in the extruder passes through the shearing of the screw and external heat After the average plasticization, the material enters the extruder head, and the material is given a certain shape in the head, and leaves the extruder after further plasticization; c, shaping: the pipe after the initial molding of the head first enters the spray Sizing box, the pipe passes through the sizing sleeve, and vacuumizes the sizing box by spraying the outer wall of the pipe, so that the pipe is subjected to internal pressure and clings to the inne...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a PVC pipe manufacturing method. The PVC pipe manufacturing method comprises the steps of a, mixing of raw materials; b, plastifying, specifically, feeding the materials into afeeder, feeding the materials into a feed port of an extruding machine through the feeder and uniformly plastifying the materials and then feeding the materials into the extruding machine under the action of shearing and external heating of a screw rod in the extruding machine, shaping the materials in a machine head, further plastifying the materials and discharging the materials out of the extruding machine; c, shaping, specifically, feeding a pipe preliminarily formed in the machine head into a spray sizing box, enabling the pipe to pass through a sizing sleeve, conducting vacuum pumping on the interior of the pipe outer wall spray sizing box to enable the pipe to bear the internal pressure and be attached to the inner wall of the sizing sleeve and conducting cooling forming on the pipe under the action of spray water; and d, pipe processing, specifically, driving the pipe completely cooled in the spray sizing box to advance at constant speed under the action of a tractor, controlling a planetary saw through a metering device to cut the pipe into pipe bodies with the preset length, and finally conducting flaring on the pipe bodies to complete pipe production.

Description

technical field [0001] The invention belongs to the technical field of PVC pipe manufacture, and in particular relates to a PVC pipe manufacture method. Background technique [0002] PVC is the abbreviation of (Polyvinylchlorid), the main component is polyvinyl chloride, and other components are added to enhance its heat resistance, toughness and ductility. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive; it is a synthetic material that is loved, popular and widely used in the world today. . It is the second most used synthetic material worldwide. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, while its consumption was 5.3 million tons. In Germany, PVC production and consumption average 1.4 million tons. [0003] One of the more important steps in the production of PVC pipes is extrusion molding. During the extrusion molding...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C48/09B29C48/285B29K27/06
CPCB29C48/09B29C48/001B29C48/0022B29C48/288B29C48/287B29K2027/06
Inventor 王国华
Owner 浙江宏途电气科技有限公司