An unwinding and cutting device for heat shrink tubing

Abstract

This utility model relates to the field of heat shrink tubing technology, and in particular to an unwinding and cutting device for heat shrink tubing, which solves the shortcomings of the cumbersome cutting in the prior art. The device includes a base, an unwinding drum on the inner side of the base, a limit tube on the inner side of the base, a pulling tube on the inner side of the base, and a heat shrink tubing wound around the outer side of the unwinding drum. A motor is located on the inner side of the base, with a first pulley at the output end of the motor. A second pulley is located outside the rotating shaft of the pulling tube, and a third pulley is located outside the rotating shaft of the unwinding drum. The first, second, and third pulleys are interconnected by belt drives. A first guide groove is located above the base, a second guide groove is located in front of the first guide groove, and a power pressure roller is located to the left of the second guide groove. This utility model features strong practicality and integrated unwinding and cutting.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink sleeve technology, specifically to an unwinding and cutting device for heat shrink sleeves. Background Technology

[0002] Heat shrink tubing is a thin film material that shrinks and tightly wraps around the surface of an object when heated. It is commonly used in product transportation and for securing and protecting products, providing stability, coverage, and protection. The main component of heat shrink film is polyethylene (PE). When exposed to heat, it shrinks and adheres tightly to the surface of the object, thus achieving waterproofing, scratch resistance, and other protective functions.

[0003] Existing heat shrink sleeves are collected by winding on a reel. Before use, workers need to pull out the required length and cut it with scissors before proceeding with subsequent operations. This process is time-consuming, and the cutting length cannot be controlled, which can easily lead to waste. In addition, workers' cutting angles are prone to be crooked, resulting in uneven cuts and affecting the heat shrink effect.

[0004] Therefore, it is necessary to design a highly practical unwinding and cutting device for heat shrink tubing that integrates unwinding and cutting. Utility Model Content

[0005] The purpose of this invention is to provide an unwinding and cutting device for heat shrink tubing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat shrink tubing unwinding and cutting device, comprising a base, an unwinding cylinder provided on the inner side of the base, a limiting tube provided on the inner side of the base, a pulling tube provided on the inner side of the base, and a heat shrink tubing wound on the outer side of the unwinding cylinder.

[0007] According to the above technical solution, a motor is provided on the inner side of the base, a first pulley is provided at the output end of the motor, a second pulley is provided on the outer side of the rotating shaft of the pulling tube, and a third pulley is provided on the outer side of the rotating shaft of the unwinding drum. The first pulley, the second pulley, and the third pulley are connected to each other by belt drive.

[0008] According to the above technical solution, a first guide groove is provided above the base, a second guide groove is provided in front of the first guide groove, a power pressure roller is provided on the left side of the second guide groove, a limit pressure roller is provided on the left side of the second guide groove, and a rotator is provided above the base, with the rotating end of the rotator connected to the power pressure roller.

[0009] According to the above technical solution, a height-increasing frame is provided above the base, and a guide tube is provided on the rear side of the height-increasing frame.

[0010] According to the above technical solution, a telescopic device is provided above the height-increasing frame, a pressing plate is provided above the telescopic device, and a spring is wrapped around the outside of the telescopic device.

[0011] According to the above technical solution, a cutting groove is provided on the top of the height-increasing frame, and a cutting blade is provided on the bottom of the pressing plate.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] (1) By setting up a unwinding drum, the heat shrink tubing is wound and wound on the unwinding drum. One end passes through the limiting tube and the pulling tube, and the other end will squeeze the heat shrink tubing. The rotation of the pulling tube can drive the heat shrink tubing to be pulled out. The rotation of the motor drives the first pulley to rotate. The belt drives the unwinding drum and the pulling tube to rotate at the same time, thereby pulling out the heat shrink tubing.

[0014] (2) By setting a power pressure roller, the end of the heat shrink tubing that is being pulled will pass through the first guide groove and the second guide groove. When passing through the second guide groove, the rotator starts to drive the power pressure roller to rotate and assist the heat shrink tubing to slide and move in the second guide groove, and cooperates with the limit pressure roller to pull it out.

[0015] (3) With the pressure plate set, the worker can input the desired length through the computer controller. The motor and the rotator work together to automatically extrude the heat shrink tubing of the corresponding length. Then the worker presses down on the pressure plate to cut. When pressing, the spring is compressed. After the cutting is completed, the spring rebounds and drives the pressure plate back to its original position, waiting for the next pressing and cutting. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the back of the entire utility model;

[0017] Figure 2 This is a frontal three-dimensional structural diagram of the entire utility model;

[0018] Figure 3 This is a front structural diagram of the cutting component of this utility model;

[0019] In the diagram: 1. Base; 2. Unwinding drum; 3. Limiting tube; 4. Pulling tube; 5. Third pulley; 6. Second pulley; 7. First pulley; 8. Motor; 9. First guide groove; 10. Second guide groove; 11. Power pressure roller; 12. Limiting pressure roller; 13. Rotator; 14. Elevator frame; 15. Guide tube; 16. Pressure plate; 17. Spring; 18. Telescopic device; 19. Cutting blade; 20. Cutting groove; 21. Heat shrink tubing. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 The present invention provides a technical solution: a heat shrink sleeve unwinding and cutting device, including a base 1, an unwinding drum 2 is provided on the inner side of the base 1, a limiting tube 3 is provided on the inner side of the base 1, a pulling tube 4 is provided on the inner side of the base 1, and a heat shrink sleeve 21 is wound around the outer side of the unwinding drum 2. The heat shrink sleeve 21 is wound and rolled up on the unwinding drum 2, one end passes through the limiting tube 3 and the pulling tube 4, and the other end will squeeze the heat shrink sleeve 21. The pulling tube 4 can be rotated to pull out the heat shrink sleeve 21.

[0022] A motor 8 is installed on the inner side of the base 1. A first pulley 7 is installed at the output end of the motor 8. A second pulley 6 is installed on the outer side of the rotating shaft of the pulling tube 4. A third pulley 5 is installed on the outer side of the rotating shaft of the unwinding drum 2. The first pulley 7, the second pulley 6, and the third pulley 5 are connected to each other by belt drive. The rotation of the motor 8 drives the first pulley 7 to rotate, and the belt drives the unwinding drum 2 and the pulling tube 4 to rotate at the same time, thereby pulling out the heat shrink tubing 21.

[0023] A first guide groove 9 is provided above the base 1, a second guide groove 10 is provided in front of the first guide groove 9, a power pressure roller 11 is provided on the left side of the second guide groove 10, a limit pressure roller 12 is provided on the left side of the second guide groove 10, and a rotator 13 is provided above the base 1. The rotating end of the rotator 13 is connected to the power pressure roller 11. The end of the heat shrink tubing 21 that is being pulled will pass through the first guide groove 9 and the second guide groove 10. When it passes through the second guide groove 10, the rotator 13 starts to drive the power pressure roller 11 to rotate and assist the heat shrink tubing 21 to slide and move within the second guide groove 10, and cooperate with the limit pressure roller 12 to pull it out.

[0024] A riser frame 14 is provided above the base 1, and a guide tube 15 is provided on the rear side of the riser frame 14. The heat shrink tubing 21 passes through the guide tube 15.

[0025] An extension device 18 is installed above the extension frame 14, and a pressing plate 16 is installed above the extension device 18. A spring 17 is wrapped around the outside of the extension device 18. The worker can input the desired length through the computer controller. The motor 8 and the rotary device 13 work together to automatically extrude the heat shrink tubing 21 of the corresponding length. Then the worker presses down on the pressing plate 16 to cut. When pressing, the spring 17 is compressed. After the cutting is completed, the spring 17 rebounds and drives the pressing plate 16 to return to its original position, waiting for the next pressing and cutting.

[0026] A cutting groove 20 is provided above the riser 14, and a cutting blade 19 is provided at the bottom of the pressing plate 16. When the pressing plate 16 is pressed down, the cutting blade 19 will drive the heat shrink tubing 21 to cut downwards, thus completing the cutting operation and realizing automatic unwinding and rapid cutting.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for unwinding and cutting a heat-shrinkable sleeve, comprising a base (1), characterized in that: The base (1) has an unwinding drum (2) on its inner side, a limiting tube (3) on its inner side, a pulling tube (4) on its inner side, and a heat shrink tubing (21) wrapped around the outer side of the unwinding drum (2).

2. A device for unwinding and cutting a heat-shrink sleeve according to claim 1, characterized in that: A motor (8) is provided on the inner side of the base (1), and a first pulley (7) is provided at the output end of the motor (8). A second pulley (6) is provided on the outer side of the rotating shaft of the pulling tube (4), and a third pulley (5) is provided on the outer side of the rotating shaft of the unwinding drum (2). The first pulley (7), the second pulley (6), and the third pulley (5) are connected to each other by belt drive.

3. A device for unwinding and cutting a heat-shrink sleeve according to claim 2, wherein: A first guide groove (9) is provided above the base (1), a second guide groove (10) is provided on the front side of the first guide groove (9), a power pressure roller (11) is provided on the left side of the second guide groove (10), a limit pressure roller (12) is provided on the left side of the second guide groove (10), a rotator (13) is provided above the base (1), and the rotating end of the rotator (13) is connected to the power pressure roller (11).

4. A device for unwinding and cutting a heat-shrink sleeve according to claim 3, wherein: A heightening frame (14) is provided above the base (1), and a guide tube (15) is provided on the rear side of the heightening frame (14).

5. A device for unwinding and cutting a heat-shrink sleeve according to claim 4, wherein: A telescopic device (18) is provided above the height-increasing frame (14), a pressing plate (16) is provided above the telescopic device (18), and a spring (17) is wrapped around the outside of the telescopic device (18).

6. A device for unwinding and cutting a heat-shrink sleeve according to claim 5, wherein: A cutting groove (20) is provided above the height-increasing frame (14), and a cutting blade (19) is provided at the bottom of the pressing plate (16).

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