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On-line production technology and device of plastic elbow pipe

A technology of production process and production equipment, applied in the field of online production process and equipment of plastic elbows, can solve the problems of difficulty in guaranteeing roundness, low comprehensive efficiency, poor appearance quality, etc., and achieve uniform curvature radius, fast production speed and high quality stable effect

Inactive Publication Date: 2018-07-13
ZIBO RONGQIAN PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned production process is complicated, difficult to operate, slow in speed, rough in appearance, and there are sand particles on the outer wall of the pipe or in the mold due to a little carelessness. The quality is poor, the roundness is difficult to guarantee, and after forming, both ends must be cut off, resulting in a certain waste, and the overall efficiency is low

Method used

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  • On-line production technology and device of plastic elbow pipe
  • On-line production technology and device of plastic elbow pipe
  • On-line production technology and device of plastic elbow pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-5 As shown, the online production device of the plastic elbow includes a high-speed mixer 1 and an extruder 2, and is characterized in that: the high-speed mixer 1 and the extruder 2, the extrusion die 3 and the arc-shaped sizing sleeve 4 Connected in sequence, the arc-shaped sizing sleeve 4 is set in the arc-shaped vacuum sizing box 5, the arc-shaped vacuum sizing box 5 is connected with the roundness correction device 6, the arc-shaped pulling machine 7, the automatic arc-shaped cutting machine 8, and the arc-shaped heating The oven 9 and the arc flaring device 10 are connected in sequence.

[0035] The extruder 2 is a twin-screw extruder 2 .

[0036] The radius of curvature of the arc-shaped sizing sleeve 4 is 9 times the diameter of the pipe.

[0037] One end of the arc-shaped sizing sleeve 4 is provided with a flange 13 , and the flange 13 is arranged outside the arc-shaped vacuum sizing box 5 .

[0038] The arc-shaped tractor 7 includes two ch...

Embodiment 2

[0049] Other places are the same as in Example 1, the difference is:

[0050] The extruder 2 is a single-screw extruder 2 .

[0051] The radius of curvature of the arc-shaped sizing sleeve 4 is 11 times the diameter of the pipe.

[0052] During vacuum sizing, the pressure is controlled at -0.045~-0.070MPa, and the temperature of the spray water is controlled at 25±5°C.

[0053] Enter the automatic arc cutting machine 8 for cutting, and cut into pipes of required length.

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Abstract

The invention relates to an on-line production technology and device of a plastic elbow pipe, and belongs to the technical field of plastic elbow pipe production. The on-line production technology ofthe plastic elbow pipe comprises the steps that raw materials are mixed and then extruded, then the plastic elbow pipe is obtained through arc sizing, roundness correcting, pulling, cutting and flaring. According to the on-line production technology of the plastic elbow pipe, one-time extrusion molding is achieved in the extruding process, secondary machining is not needed, the radius of curvatureof a product is accurate, the roundness and the wall thickness are even and controllable, the inner wall is smooth and has no the defect of concave pits, the appearance is bright and clean, the radius of a bell and spigot and the radius of curvature are consistent, the production speed is high, the efficiency is high, and the quality is stable; and the on-line production device of the plastic elbow pipe is scientific and reasonable in design, simple in structure and convenient to operate.

Description

technical field [0001] The invention relates to an online production process and device of a plastic elbow, belonging to the technical field of plastic elbow production. Background technique [0002] The existing plastic elbow production process is the secondary processing of plastic straight pipes. The secondary processing is to fill the pipe with yellow sand and other fillers heated to about 200°C, seal the two ends of the pipe to prevent the filler from overflowing, and then heat the pipe to about 200°C in a special heating furnace. Then put it into a special arc mold, and the upper and lower half molds press the straight pipe into a curved pipe under the action of mechanical force. After the curved pipe is cooled (water-cooled or air-cooled), remove the plug at the end of the pipe, and use a special tool to clean out the filling. (The purpose of the filler is to prevent the pipe from being crushed when it is bent and formed), cut off the excess pipes used for filling an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00B29C47/00B29C47/90B29C53/08B29C57/04B29C73/00B29L23/00B29C48/90
CPCB29C48/0019B29C48/0022B29C48/901B29C53/08B29C57/04B29C73/00B29L2023/004
Inventor 李子云李云
Owner ZIBO RONGQIAN PLASTIC PROD CO LTD
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