Make-up method for color masters in production of PVC (polyvinyl chloride) tubes and device

A technology of PVC pipe and color masterbatch, which is applied in the field of PVC pipe production equipment, can solve problems such as difficulty in handling, and achieve the effects of avoiding pollution, increasing mixing uniformity, and increasing the discharge of air bubbles.

Inactive Publication Date: 2014-04-23
GUIZHOU SENRUI NEW MATERIAL
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Problems solved by technology

[0003]The production of the existing PVC pipe is mature, it can be formed into a pipe by mixing materials, extruding and cooling, and the whole process has been finalized. With continuous improvement, the color requirements for PVC pipes are also gradually increasing. In order to produce pipes of different colors, the method adopted by enterprises is to add color masterbatches of different colors in the mixing area. In the process, it will inevitably produce large dust pollution, which is very difficult to take care of

Method used

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  • Make-up method for color masters in production of PVC (polyvinyl chloride) tubes and device

Examples

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Embodiment 1

[0016] Embodiment 1: as figure 1 As shown, the dosing device of the color masterbatch in the production of PVC pipes includes a feeding screw conveyor, and the two ends of the feeding screw conveyor 1 are respectively a feed hopper 3 and an extrusion head 4. The improvement of this device lies in the color masterbatch In the mixing stage, a color masterbatch screw conveyor 2 is additionally connected to the barrel of the feeding screw conveyor 1, and the color masterbatch screw conveyor 2 will be used to squeeze the color masterbatch into the feeding screw conveyor and prepare The material of PVC pipe is mixed. In order to make the mixing more uniform, the color master screw conveyor 2 is connected to the feeding section of the feeding screw conveyor 1; at the same time, the feeding control device is connected to the color master screw conveyor 2 to realize the masterbatch The perfect match of material and color masterbatch. At the same time, when making the thread of the ta...

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Abstract

The invention discloses a make-up method for color masters in the production of PVC (polyvinyl chloride) tubes. The method is implemented in a way that a color master screw conveyor for feeding color masters is additionally connected to a feeding screw conveyor of an extruder, so that the color masters are mixed with a material for preparing the PVC tubes in the feeding screw conveyor, and an effect of uniform mixing is achieved in the process of feeding; a feeding quantity control system is arranged on the feeding screw conveyor and the color master screw conveyor, so that the feeding quantity of the color masters is ensured, and the pollution to the environment caused by early-stage mixing can be avoided.

Description

technical field [0001] The invention relates to a method and a device for adding color masterbatch in PVC pipe production, and belongs to the technical field of PVC pipe production equipment. Background technique [0002] The full name of PVC is Polyvinylchlorid, the main ingredient is polyvinyl chloride, and other ingredients are added to enhance its heat resistance, toughness, ductility, etc. Due to the above characteristics of PVC, many metal pipe fittings are gradually replaced by PVC pipes. [0003] The production of existing PVC pipes has been mature. It can be formed into pipes by mixing materials, extruding, and cooling. The whole process has been finalized. In order to produce pipes of different colors, the method adopted by the enterprise is to add color masterbatches of different colors in the mixing area. Because the color masterbatches are thinner and lighter, large dust pollution will inevitably be generated during the process of adding and stirring, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/42B29B7/58
CPCB29C48/535B29C48/39
Inventor 李文泉黄开军付春涛王礼荣刘年午
Owner GUIZHOU SENRUI NEW MATERIAL
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