Polytetrafluoroethylene-made blank pipe plane collecting device and method

Abstract

The invention discloses a polytetrafluoroethylene-made blank pipe plane collecting device. The device comprises a vertically-arranged central air floating type guide pipe module, wherein the lower part of the central air floating type guide pipe module is provided with an air floating type pipe arranging guide pipe module with the same structure as the central air floating type guide pipe module,a round and horizontally-arranged pipe collecting disc is arranged at the lower part of the air floating type pipe arranging guide pipe module, the pipe collecting disc rotates through a pipe collecting disc supporting bearing, a screw rod is arranged on the lower part of the pipe collecting disc, a nut sliding block is arranged on the screw rod, a stroke switch for controlling the stroke of the nut sliding block is arranged on each of the opposite positions of the left side and the right side of the lower part of the screw rod, and the nut sliding block and all the structures fixedly connected on the nut sliding block move left and right through rotation of the screw rod. The device and the method have the beneficial effects that under the condition that a polytetrafluoroethylene-made blank pipe is produced at constant speed, the ordered pipe collecting can be effectively ensured, and uniform gaps are arranged between the arranged adjacent polytetrafluoroethylene-made blank pipes.

Description

technical field [0001] The patent of the invention belongs to the technical field of polytetrafluoroethylene pipe manufacturing, and specifically relates to a planar wire take-up device for polytetrafluoroethylene blank pipe. Background technique [0002] PTFE F4 has excellent corrosion resistance, anti-stickiness, weather resistance, and small friction coefficient, and is widely used in anti-corrosion working environments and wear-reducing conditions. pH fluid transport. [0003] PTFE is different from common substances. It is usually divided into two states: gaseous and solid. It begins to decompose when the ambient temperature is higher than 415°C. In addition, the melting point of the crystal is 327°C. Above the melting point, the viscosity of PTFE is extremely high. It can maintain the original shape, so it does not have other methods of melt processing of polymer materials. The processing method of PTFE pipes is generally the processing method of extrusion molding fir...

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Problems solved by technology

[0004] In the extrusion molding process, it is extruded step by step. In order to improve the fluidity of the material in the extrusion process and reduce the pressure of the final molding, the working temperature is slightly higher than room temperature in practice. The tensile, compressive and bending strength of vinyl fluoride billet tubes is low, and it is easy to be damaged. In addition, there must be a certain gap in the arrangement of the billet tubes during the winding process. Pipe wall adhesion problem

[0005] At present, the collection process of PTFE F4 tubes is mostly manual operation or manual auxiliary operation, which is inefficient, and quality defects such as uneven wall thickness and wrinkles will also appear in production.

[0006] Nowadays, most of the similar polymer tube take-up devices are circumferential constant force distance take-up devices or flat take-up devices for formed tubes, which are far from the PTFE blank tube take-up devices and cannot meet the demand

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