Gluing structure for rolling self-adhesive paper tape

Abstract

The utility model discloses a gluing structure for rolling a self-adhesive paper tape, and belongs to the technical field of rolling equipment. The problems that in the prior art, when a double-faced adhesive tape is manually pasted on a paper tube or glue is manually coated, the workload is large, and the production cost is increased are solved. The device mainly comprises an air expansion shaft, the air expansion shaft is rotatably installed on a rack and is driven by a motor to rotate, the device further comprises a gluing device, the gluing device comprises a hot melt glue box on the lower side of the air expansion shaft, a gluing roller is rotatably installed on the upper side in the hot melt glue box, a gluing roller motor is installed on one side of the hot melt glue box, and the gluing roller motor is connected with the hot melt glue box. The glue spreading roller motor is in transmission connection with the glue spreading roller and can drive the glue spreading roller to rotate, a glue inlet and a glue outlet are formed in the upper side and the lower side of the hot melt glue box respectively, and a driving assembly capable of driving the hot melt glue box to ascend and descend is installed at the bottom of the hot melt glue box.

Description

Technical Field

[0001] This utility model belongs to the technical field of winding equipment, and more specifically, it relates to an adhesive coating structure for winding self-adhesive paper tape. Background Technology

[0002] Self-adhesive tape requires winding as a final step in production, often using an air shaft. During winding, the paper tube is first placed on the air shaft, which then inflates to secure it. To facilitate the connection between the tape and the paper tube, double-sided tape or other adhesive is usually manually applied to the surface of the paper tube before it's placed on the air shaft. When the pressure roller presses the tape, cut by the cutter, against the air shaft containing the paper tube, the tape adheres to the paper tube's surface. The air shaft then smoothly winds the tape as the motor rotates. While applying double-sided tape or other adhesive to the paper tube achieves this initial connection, the workload of applying tape to a large number of paper tubes beforehand is significant, often requiring dedicated personnel and increasing production costs. Summary of the Invention

[0003] The purpose of this invention is to provide a coating structure for rewinding self-adhesive paper tape, which can automatically apply adhesive to the surface of the paper tube on the air shaft, thereby avoiding the need for manual application of double-sided tape or manual coating.

[0004] This utility model is achieved using the following technical solution: a coating structure for rewinding self-adhesive paper tape, comprising an air shaft rotatably mounted on a frame and driven to rotate by a motor; a coating device including a hot melt adhesive box below the air shaft; a coating roller rotatably mounted on the upper side of the hot melt adhesive box; a coating roller motor mounted on one side of the hot melt adhesive box, the motor drivingly connecting to and driving the coating roller to rotate; an adhesive inlet and an adhesive outlet respectively provided on the upper and lower sides of the hot melt adhesive box; a drive assembly for driving the hot melt adhesive box to move up and down installed at the bottom of the hot melt adhesive box; a heating element installed inside the hot melt adhesive box, the heating element connected to a temperature controller, the temperature controller including a temperature sensor for detecting the temperature of the hot melt adhesive inside the hot melt adhesive box.

[0005] Furthermore, the glue inlet is connected to a glue inlet pipe, which is connected to a hot melt glue delivery pump, which is connected to a glue tank; a valve is installed on the glue outlet.

[0006] Furthermore, a liquid level sensor bracket is installed on the top of the hot melt adhesive box, and a liquid level sensor is installed on the liquid level sensor bracket. The liquid level sensor is connected to the hot melt adhesive delivery pump through a controller.

[0007] Furthermore, the liquid level sensor is an ultrasonic liquid level sensor.

[0008] Furthermore, the drive assembly includes a lifting motor mounted on a support plate. A screw jack, which is connected to the lifting motor, is also mounted on the support plate. The screw jack includes a screw, the top of which is connected to the bottom of a hot melt adhesive box, and the bottom of which passes through the support plate. A support leg is mounted on the bottom of the support plate.

[0009] Furthermore, the support plate has a guide hole through which a guide rod passes, and the top of the guide rod is connected to the bottom of the hot melt adhesive box.

[0010] Furthermore, the lifting motor is a servo motor.

[0011] Furthermore, the temperature sensor is an infrared temperature sensor, which is fixedly mounted on the top of the hot melt adhesive box via a temperature sensor bracket.

[0012] Furthermore, the heating element is an electric heating tube.

[0013] Furthermore, the coating roller is characterized by having multiple annular grooves spaced apart along its length.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention enables automatic application of adhesive to the surface of the paper tube on the air shaft, eliminating the need for a dedicated person to apply double-sided tape or adhesive to the surface of the paper tube in advance, thus reducing production costs.

[0016] The coating area of ​​this invention is small, eliminating the need to coat the paper tube surface 360 ​​degrees, thus saving coating costs. For example, during coating, after the air shaft contacts the coating roller, the motor controls the air shaft to rotate 90 degrees, so that about one-quarter of the paper tube surface is coated with glue. After coating, the coating roller descends, and the motor then controls the air shaft to rotate about 135 degrees, so that the coated part on the paper tube is directly above. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 yes Figure 1 A magnified view of a section at point I;

[0019] Figure 3 This is a schematic diagram of the hot melt adhesive box after it has risen according to this utility model.

[0020] In the diagram: 1. Air shaft; 2. Frame; 3. Hot melt glue box; 4. Glue application roller; 5. Glue application roller motor; 6. Glue inlet; 7. Temperature sensor; 8. Liquid level sensor bracket; 9. Liquid level sensor; 10. Lifting motor; 11. Support plate; 12. Screw jack; 13. Screw; 14. Support leg; 15. Guide rod; 16. Annular groove; 17. Temperature sensor bracket; 18. Turntable. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort should fall within the scope of protection of this utility model.

[0022] A coating structure for winding self-adhesive paper tape includes an air shaft 1, which is rotatably mounted on a frame 2 and driven by a motor. The air shaft 1 is used to wind the self-adhesive paper tape. During winding, a paper tube is first fitted onto the air shaft 1 and fixed in place. Then, a coating device applies adhesive to the paper tube on the air shaft 1. After coating, the self-adhesive paper tape is pressed by a pressure roller or manually to bring it into contact with the hot melt adhesive on the paper tube surface, thus connecting the self-adhesive paper tape to the paper tube. A cutter is often installed above the coating device to cut the self-adhesive paper tape on the wound paper tube. Multiple air shafts 1 can be installed simultaneously on a single self-adhesive paper tape winding machine. Figure 1 As shown, four air shafts 1 are simultaneously installed. The four air shafts 1 are rotatably mounted on a turntable 18 in a circumferential direction. The turntable 18 can rotate relative to the frame 2 by being driven by a motor. The position of the four air shafts 1 can be switched by rotating the turntable 18. The air shaft 1 at the leftmost position on the turntable 18 is used to connect the self-adhesive paper tape. After connecting the self-adhesive paper tape, the air shaft 1 at the leftmost position will rotate to the top of the turntable 18. The frame 2 is equipped with a pressure roller and a cutter on the upper left side of the turntable 18. When the air shaft 1 at the leftmost position on the turntable 18 is coated with adhesive and the paper tube on the air shaft 1 at the top of the turntable 18 has finished winding the self-adhesive paper tape, the cutter will cut the self-adhesive paper tape. The pressure roller will press the self-adhesive paper tape against the paper tube on the air shaft 1 at the leftmost position on the turntable 18, so that the paper tube on the air shaft 1 at the leftmost position on the turntable 18 is connected to the self-adhesive paper tape. Of course, the self-adhesive paper tape winding equipment can also be equipped with only one air shaft 1. After the paper tube on the air shaft 1 is wound up, the self-adhesive paper tape is cut manually, the wound paper tube is removed and a new paper tube is installed. Finally, one end of the self-adhesive paper tape is pressed manually onto the hot melt adhesive on the surface of the paper tube on the air shaft 1.

[0023] This utility model also includes an adhesive application device, which includes a hot melt adhesive box 3 on the lower side of the air expansion shaft 1. The hot melt adhesive box 3 has an adhesive inlet 6 and an adhesive outlet on its upper and lower sides, respectively. The adhesive inlet 6 is connected to an adhesive inlet pipe, which is connected to a hot melt adhesive delivery pump, and the hot melt adhesive delivery pump is connected to a glue tank. A valve is installed on the adhesive outlet.

[0024] A liquid level sensor bracket 8 is installed on the top of the hot melt adhesive box 3, and a liquid level sensor 9 is installed on the liquid level sensor bracket 8. The liquid level sensor 9 is connected to the hot melt adhesive delivery pump through a controller. The liquid level sensor 9 is an ultrasonic liquid level sensor.

[0025] The liquid level sensor 9 of this invention can detect the liquid level of hot melt adhesive in the hot melt adhesive box 3. When the liquid level sensor 9 detects that the liquid level is too low, it can send a signal to the controller, and the controller controls the hot melt adhesive delivery pump to replenish the hot melt adhesive in the hot melt adhesive box 3.

[0026] A heating element is installed inside the hot melt adhesive box 3. The heating element is an electric heating tube. The heating element is connected to a temperature controller. The temperature controller includes a temperature sensor 7 for detecting the temperature of the hot melt adhesive inside the hot melt adhesive box 3. The temperature sensor 7 is an infrared temperature sensor. The temperature sensor 7 is fixedly installed on the top of the hot melt adhesive box 3 by a temperature sensor bracket 17.

[0027] This invention uses temperature sensor 7 to monitor the temperature of the hot melt adhesive in the hot melt adhesive box 3 in real time. When the temperature reaches the set minimum value, the temperature controller will control the heating element to start. When the temperature reaches the set maximum value, the temperature controller will control the heating element to turn off.

[0028] A coating roller 4 is rotatably mounted on the upper side inside the hot melt adhesive box 3. A coating roller motor 5 is mounted on one side of the hot melt adhesive box 3. The coating roller motor 5 is connected to the coating roller 4 and can drive the coating roller 4 to rotate. A drive assembly that can drive the hot melt adhesive box 3 to move up and down is installed at the bottom of the hot melt adhesive box 3.

[0029] The drive assembly includes a lifting motor 10, which is a servo motor. The lifting motor 10 is mounted on a support plate 11. A screw jack 12, which is connected to the lifting motor 10, is also mounted on the support plate 11. The screw jack 12 includes a screw 13. The top of the screw 13 is connected to the bottom of the hot melt glue box 3, and the bottom of the screw 13 passes through the support plate 11. A support leg 14 is mounted on the bottom of the support plate 11.

[0030] In this invention, during the gluing process, the lifting motor 10 first drives the lead screw 13 upward through the lead screw jack 12, and at the same time, the lead screw 13 drives the hot melt glue box 3 upward to a set height. At this time, the gluing roller 4 will make slight contact or have a very small gap with the surface of the paper tube on the upper air shaft 1. The air shaft 1 is driven by the motor to rotate 90 degrees, and at the same time, the gluing roller 4 rotates synchronously with the air shaft 1 under the drive of the gluing roller motor 5. During the rotation of the air shaft 1, the paper tube on the surface of the air shaft 1 completes the gluing work. After the gluing is completed, the hot melt glue box 3 is driven by the lifting motor 10 to descend to the initial position. Finally, the motor drives the air shaft 1 to rotate about 135 degrees, so that the gluing part on the surface of the paper tube rotates to the top.

[0031] The support plate 11 has guide holes, through which a guide rod 15 passes. The top of the guide rod 15 is connected to the bottom of the hot melt adhesive box 3. This invention enhances the stability of the hot melt adhesive box 3 during lifting by providing guide holes on both sides and guide rods 15.

[0032] The coating roller 4 has multiple annular grooves 16 spaced apart along its length. By creating annular grooves 16 on the coating roller 4, this invention reduces the contact area between the coating roller 4 and the paper tube surface, thus reducing the coating area on the paper tube surface. This effectively reduces the amount of hot melt adhesive used and lowers production costs while ensuring the connection effect between the self-adhesive paper tape and the paper tube.

Claims

1. A coating structure for winding self-adhesive paper tape, comprising an air shaft (1), wherein the air shaft (1) is rotatably mounted on a frame (2), and the air shaft (1) is driven to rotate by a motor, characterized in that, It also includes a glue applicator, which includes a hot melt glue box (3) under the air shaft (1). A glue applicator roller (4) is rotatably mounted on the upper side of the hot melt glue box (3). A glue applicator roller motor (5) is mounted on one side of the hot melt glue box (3). The glue applicator roller motor (5) is connected to the glue applicator roller (4) and can drive the glue applicator roller (4) to rotate. The upper and lower sides of the hot melt glue box (3) are respectively provided with a glue inlet (6) and a glue outlet. A drive assembly that can drive the hot melt glue box (3) to move up and down is installed at the bottom of the hot melt glue box (3). A heating element is installed inside the hot melt glue box (3). The heating element is connected to a temperature controller. The temperature controller includes a temperature sensor (7) for detecting the temperature of the hot melt glue inside the hot melt glue box (3).

2. The adhesive coating structure for adhesive label paper tape winding according to claim 1, wherein The glue inlet (6) is connected to the glue inlet pipe, which is connected to the hot melt glue delivery pump, which is connected to the glue tank; a valve is installed on the glue outlet.

3. The adhesive coating structure for adhesive label tape winding according to claim 2, wherein A liquid level sensor bracket (8) is installed on the top of the hot melt adhesive box (3), and a liquid level sensor (9) is installed on the liquid level sensor bracket (8). The liquid level sensor (9) is connected to the hot melt adhesive delivery pump through a controller.

4. The adhesive coating structure for adhesive label tape winding according to claim 3, wherein The liquid level sensor (9) is an ultrasonic liquid level sensor.

5. The adhesive coating structure for adhesive label paper tape winding according to claim 1, wherein The drive assembly includes a lifting motor (10), which is mounted on a support plate (11). The support plate (11) is also equipped with a screw jack (12) that is connected to the lifting motor (10) in a transmission. The screw jack (12) includes a screw (13), the top of which is connected to the bottom of a hot melt glue box (3), and the bottom of which passes through the support plate (11). The bottom of the support plate (11) is equipped with a support leg (14).

6. The adhesive-coating structure for winding a sticker paper tape according to claim 5, wherein The support plate (11) has a guide hole, and a guide rod (15) passes through the guide hole. The top of the guide rod (15) is connected to the bottom of the hot melt adhesive box (3).

7. The adhesive-coated structure according to claim 5, wherein The lifting motor (10) is a servo motor.

8. The adhesive-coating structure for winding a sticker paper tape according to claim 1, wherein The temperature sensor (7) is an infrared temperature sensor, and the temperature sensor (7) is fixedly installed on the top of the hot melt adhesive box (3) by a temperature sensor bracket (17).

9. The adhesive-coating structure for winding a sticker paper tape according to claim 1, wherein The heating element is an electric heating tube.

10. The adhesive coating structure for winding self-adhesive paper tape according to any one of claims 1-9, characterized in that, The coating roller (4) has multiple annular grooves (16) spaced apart along its length.

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