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Heat shrink tube stretching device

A stretching device and heat-shrinkable tube technology, applied in the field of heat-shrinkable tube stretching devices, can solve the problems of difficult stretching force and uneven wall thickness of the heat-shrinkable tube, and achieve the effect of convenient exchange and collection and uniform force

Pending Publication Date: 2022-07-22
海生医疗科技(湖州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the production process of the existing heat-shrinkable tube, it needs to be heated, then expanded and cooled, and then rolled up. The stretching force in the whole process is mainly stretched by the subsequent winding. Since the heat-shrinkable tube is stretched in the front section When conveying and rewinding at the rear end, both are in a flat shape, so when stretching the flat heat shrinkable tube at this time, it is difficult to ensure uniform stretching force, so that the heat shrinkable tube that is expanding at the heating place is prone to wall thickness Uneven phenomenon, for this reason, we propose a heat-shrinkable tube stretching device

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see Figure 1-Figure 4 , a heat-shrinkable tube stretching device in the figure, including a stretching tube 1, the bottom and the top of the stretching tube 1 are fixed with a V-shaped plate 2 facing opposite, and the V-shaped plate 2 is opened for The opening 3 for the heat shrinkable tube to move also includes a moving ring 4 and a cooling mechanism 10. The bottom of the moving ring 4 is installed with an adsorption assembly 5, and the outer side of the moving ring 4 is threadedly sleeved with two reciprocating screw rods 6, located below The V-shaped plate 2 is provided with a mounting groove 7, and a driving member 8 for the rotation of the reciprocating screw 6 is installed in the mounting groove 7, and a negative pressure joint 9 is connected to the outside of the stretching tube 1. The cooling mechanism 10 for cooling after the heat shrinkable tube is expanded and stretched is installed on the top of the stretched tube 1 .

[0030] It should be noted that: in t...

Embodiment 2

[0043] see Figure 9 , this embodiment further describes Embodiment 1, the linkage 18 in the figure includes a plurality of transmission gears 19 that mesh with each other, and the plurality of transmission gears 19 are rotatably installed in the U-shaped frame 16, and the outermost A linkage rod 20 is fixed on the transmission gear 19 at the end, the top of the linkage rod 20 is rotatably installed with a mounting plate fixed to the outer wall of the stretching tube 1, and the top of the linkage rod 20 is fixed with the tooth column. 13 meshing half gears 21;

[0044] It should be noted that: by designing a plurality of mutually meshing transmission gears 19, the power transmission to the driving gear 17 is realized, so that the linkage rod 20 can rotate with the rotation of the reciprocating screw 6, and through the continuous rotation of the half gear 21 and The extrusion spring 15 on the outer side of the tooth column 13 pushes, so as to drive the tooth column 13 and the ...

Embodiment 3

[0046] see Figure 11 , this embodiment further describes other embodiments, the V-shaped plate 2 located at the top in the figure has two docking grooves 34, and the two docking grooves 34 are installed with two rotating shafts. Opposing squeeze plates 35 .

[0047] It should be noted that the design of the two extrusion plates 35 can facilitate the re-flattening of the heat shrinkable tube, and at the same time, the entry of cooling liquid can be avoided, and the entry of external gas can also be avoided in a negative pressure environment.

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Abstract

The invention discloses a heat shrink tube stretching device, relates to the technical field of heat shrink tube stretching, solves the problem that the outer wall of an existing heat shrink tube is unevenly stressed when the heat shrink tube is stretched, and comprises a stretching tube, a moving ring and a cooling mechanism, V-shaped plates facing oppositely are fixed to the bottom and the top of the stretching tube, and an adsorption assembly is installed at the bottom of the moving ring. And two reciprocating lead screws are connected to the outer side of the moving ring in a threaded and sleeving mode, a mounting groove is formed in the V-shaped plate located on the lower portion, a driving piece used for rotating the reciprocating lead screws is mounted in the mounting groove, and the outer side of the stretching pipe communicates with a negative pressure connector. The heated flat heat shrink tube penetrates through the stretching tube, one heating stretching action of the heat shrink tube is met through reciprocating motion of the adsorption assembly and adsorption expansion of the heat shrink tube, stretching expansion stress of the outer side wall of the heat shrink tube is more uniform, then the heat shrink tube is cooled and shaped through the cooling mechanism, and the flat heat shrink tube is conveyed out to be conveniently replaced and collected.

Description

technical field [0001] The invention relates to the technical field of heat-shrinkable tube stretching, in particular to a heat-shrinkable tube stretching device. Background technique [0002] The heat-shrinkable sleeve has a special function of shrinking when exposed to heat. The polymer material undergoes a glass state-high elastic state as the temperature changes from low to high. The performance of the glass state is close to that of plastic, and the performance of the high elastic state is close to that of rubber. The material used in the heat shrinkable tube is in a glass state at room temperature, and becomes a highly elastic state after heating; [0003] In the production process of the existing heat shrinkable tube, it needs to be heated, then expanded and cooled, and then rolled. When conveying and rewinding at the back end, they are both flat, so when stretching the flat heat shrinkable tube at this time, it is difficult to ensure the uniform stretching force, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C61/08
CPCB29C61/08
Inventor 施丽
Owner 海生医疗科技(湖州)有限公司