A thermostatic heating device for heat-sensitive adhesive

Abstract

This utility model discloses a constant-temperature heating device for thermosensitive adhesive, including a constant-temperature heating tank with a feeding hopper. A temperature sensor is installed on the inner wall of the heating tank. A heat insulation sleeve is rotatably mounted on the heating tank, and an electric heating element is installed on the heat insulation sleeve. The heating tank also includes a rotating component and a purification assembly. The rotating component includes a gear sleeve fixedly connected to the outer wall of the heat insulation sleeve. The purification assembly includes a connecting pipe connected to the heating tank, a fixed box on the connecting pipe, an activated carbon plate and a fan on the inner wall of the fixed box, and a heat recovery pipe installed on the fixed box. This utility model allows the electric heating element to rotate within the constant-temperature heating tank via the rotating component, ensuring uniform heating of the thermosensitive adhesive, increasing the open time of the adhesive, reducing stringing and bubbles, and improving the quality of the adhesive. The purification assembly prevents the release of harmful gases during the discharge of the thermosensitive adhesive, improving the safety of the thermosensitive adhesive constant-temperature heating device.

Description

Technical Field

[0001] This utility model belongs to the field of thermosensitive adhesive heating technology, and in particular relates to a thermosensitive adhesive constant temperature heating device. Background Technology

[0002] Hot melt adhesive (also known as thermal adhesive) is a thermoplastic adhesive that melts upon heating and cures upon cooling. It is solid at room temperature but becomes liquid when heated to a certain temperature (typically 80-200℃), and bonds rapidly upon application and cooling. A constant-temperature heating device for hot melt adhesive is used to precisely control the melting temperature of the adhesive, ensuring stable viscosity and improving coating or bonding quality. It is widely used in packaging, electronics assembly, automotive manufacturing, medical supplies, and other fields.

[0003] Existing thermostatic heating devices for thermal adhesives have the following shortcomings: the heating components are mostly fixedly installed inside the heating tank, which makes it difficult to heat the thermal adhesive evenly. Furthermore, volatile organic compounds (VOCs) are generated during the heating process. Existing thermostatic heating devices cannot purify these VOCs, which are released along with the adhesive, polluting the environment. In addition, inhaling these VOCs can harm workers' health. Therefore, based on actual usage, we have improved the aforementioned existing technology. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by providing a constant temperature heating device for thermosensitive adhesives to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a constant temperature heating device for thermal adhesive, including a constant temperature heating tank, a feeding hopper connected to the constant temperature heating tank, a temperature sensor installed on the inner wall of the constant temperature heating tank, a heat insulation sleeve rotatably installed on the constant temperature heating tank, and an electric heating tube installed on the heat insulation sleeve, and a rotating component and a purification component are also provided on the constant temperature heating tank.

[0006] The rotating component includes a gear sleeve that is fixedly connected to the outer wall of the heat insulation sleeve, and a drive gear is meshed on the gear sleeve.

[0007] The purification component includes a connecting pipe connected to a constant temperature heating tank. A fixed box is provided on the connecting pipe. The inner wall of the fixed box is provided with an activated carbon plate and a fan. A heat recovery pipe is installed on the fixed box. The end of the heat recovery pipe away from the fixed box is connected to the constant temperature heating tank.

[0008] In a preferred embodiment of this utility model, a glue pump is installed on the constant temperature heating tank. The glue inlet of the glue pump is connected to the constant temperature heating tank through a pipe, and the glue outlet of the glue pump is connected to a glue delivery pipe.

[0009] In a preferred embodiment of the present invention, the rotating component further includes an L-shaped plate fixed to the constant temperature heating tank, a motor is mounted on the L-shaped plate, and the output end of the motor is connected to the drive gear.

[0010] In a preferred embodiment of the present invention, the purification component further includes a sealing cover movably connected to the fixed box, and the sealing cover has a communication hole for connecting to the heat recovery pipe.

[0011] In a preferred embodiment of this utility model, the fan is fixedly connected to the fixed box by a bracket, and the inner wall of the fixed box is provided with a mounting frame, with the activated carbon plate located inside the mounting frame.

[0012] In a preferred embodiment of this utility model, the fixed box is threaded with two sets of locking screws, and the mounting frame is provided with two sets of threaded holes that connect with the locking screws.

[0013] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0014] This invention uses a temperature sensor to monitor the temperature inside the constant-temperature heating tank in real time. The motor on the rotating component drives the drive gear, which meshes with the gear sleeve, allowing the electric heating tube on the heat insulation sleeve to rotate inside the tank. This ensures uniform heating of the thermosensitive adhesive, increases its open time, reduces stringing and bubbles, and improves its quality. The fan on the purification component adsorbs the volatile organic compounds (VOCs) generated during heating of the thermosensitive adhesive using activated carbon plates. The hot gas is then returned to the tank, preventing harmful gases from escaping during adhesive discharge and enhancing the safety of the thermosensitive adhesive heating device. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of another aspect of the preferred embodiment of the present invention;

[0018] Figure 3 This is a front cross-sectional view of a preferred embodiment of the present invention;

[0019] Figure 4 This is a top view cross-sectional diagram of the purification component according to a preferred embodiment of the present invention.

[0020] In the diagram: 10. Constant temperature heating tank; 11. Glue pump; 12. Glue delivery pipe; 13. Feed hopper; 14. Heat insulation sleeve; 15. Electric heating element; 16. Temperature sensor; 20. Rotating component; 201. L-shaped plate; 202. Motor; 203. Drive gear; 204. Gear sleeve; 30. Purification component; 301. Fixed box; 302. Sealing cover; 303. Heat recovery pipe; 304. Connecting pipe; 305. Connecting hole; 306. Fan; 307. Mounting frame; 308. Activated carbon plate; 309. Threaded hole; 310. Locking screw. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0022] Combination Figures 1 to 4 As shown, this embodiment provides a thermostatic heating device for thermal adhesive, including a thermostatic heating tank 10. A feeding hopper 13 is connected to the thermostatic heating tank 10. A temperature sensor 16 is installed on the inner wall of the thermostatic heating tank 10. A heat insulation sleeve 14 is rotatably mounted on the thermostatic heating tank 10, and an electric heating tube 15 is installed on the heat insulation sleeve 14. The thermostatic heating tank 10 also includes a rotating component 20 and a purification component 30. In this embodiment, the thermostatic heating tank 10 is made of heat-insulating material. The electrical terminals of each electrical device are electrically connected to the power supply and the PLC controller via wires. The temperature sensor 16 monitors the temperature inside the thermostatic heating tank 10 in real time and adjusts the power of the electric heating tube 15 based on the monitored temperature, ensuring that the temperature inside the thermostatic heating tank 10 is at the optimal temperature for heating the thermal adhesive, preventing the thermal adhesive from solidifying, improving the quality of the thermal adhesive, and facilitating the discharge of the thermal adhesive after it has been heated into a liquid. The feeding hopper 13 is used for adding solid thermal adhesive.

[0023] In this embodiment, the rotating component 20 includes a gear sleeve 204 fixedly connected to the outer wall of the heat insulation sleeve 14, and a drive gear 203 is meshed on the gear sleeve 204; the heat insulation sleeve 14 is rotatably mounted on the constant temperature heating tank 10, and the rotation of the drive gear 203 drives the gear sleeve 204 to rotate, thereby driving the heat insulation sleeve 14 fixedly connected to the gear sleeve 204 to rotate, so that the electric heating tube 15 can rotate inside the constant temperature heating tank 10. The purification component 30 includes a connecting pipe 304 connected to the constant temperature heating tank 10, and a fixing box 301 is provided on the connecting pipe 304. The inner wall of the fixing box 301 The device includes an activated carbon plate 308 and a fan 306. A heat recovery pipe 303 is installed on the fixed box 301, with the end of the heat recovery pipe 303 away from the fixed box 301 connected to the constant temperature heating tank 10. The fan 206 is an exhaust fan that can transport the volatile organic compounds (VOCs) gas generated when heating the heat-sensitive adhesive in the constant temperature heating tank 10 to the fixed box 301. The activated carbon plate 308 adsorbs the VOCs gas to prevent it from being released. The final hot gas flows back to the constant temperature heating tank 10 through the heat recovery pipe 303 to prevent heat loss.

[0024] Furthermore, in this embodiment, a glue pump 11 is installed on the constant temperature heating tank 10. The glue inlet of the glue pump 11 is connected to the constant temperature heating tank 10 through a pipe, and the glue outlet of the glue pump 11 is connected to a glue delivery pipe 12. The operation of the glue pump 11 discharges the heated liquid thermosensitive glue in the constant temperature heating tank 10 through the glue delivery pipe 12.

[0025] In this embodiment, the rotating component 20 also includes an L-shaped plate 201 fixedly attached to the constant temperature heating tank 10. A motor 202 is mounted on the L-shaped plate 201, and the output end of the motor 202 is connected to the drive gear 203. The operation of the motor 202 drives the drive gear 203 to rotate. Since the drive gear 203 is meshed with the gear sleeve 204, the heat insulation sleeve 14 can rotate. The purification component 30 also includes a sealing cover 302 movably connected to the fixed box 301. The sealing cover 302 has a connecting hole 305 connected to the heat recovery pipe 303.

[0026] Specifically, in this embodiment, the fan 306 is fixedly connected to the fixed box 301 by a bracket. The inner wall of the fixed box 301 is provided with a mounting frame 307. The activated carbon plate 308 is located in the mounting frame 307. Two sets of locking screws 310 are threadedly connected to the fixed box 301. Two sets of threaded holes 309 connected to the locking screws 310 are opened on the mounting frame 307. After the movable sealing cover 302 is opened, the mounting frame 307 can be removed by rotating the locking screws 310, which facilitates the replacement of the activated carbon plate 308.

[0027] In actual use, the thermostatic heating device for thermal adhesive in this embodiment involves opening the cover plate on the feeding hopper 13, pouring the solid thermal adhesive into the thermostatic heating tank 10, and starting the motor 202 on the rotating component 20. The operation of the motor 202 drives the drive gear 203 to rotate. Since the drive gear 203 meshes with the gear sleeve 204, the electric heating tube 15 on the heat insulation sleeve 14 can rotate inside the thermostatic heating tank 10, which can uniformly heat the thermal adhesive, improve the open time of the thermal adhesive, reduce stringing and bubbles, and improve the quality of the thermal adhesive. At the same time, the temperature sensor 16 monitors the temperature inside the thermostatic heating tank 10 in real time and adjusts the electric heating according to the monitored temperature. The power of tube 15 ensures that the temperature inside the constant temperature heating tank 10 is at the optimal temperature for heating the heat-sensitive adhesive. After the fan 306 on the purification component 30 starts working, it transports the volatile organic compounds (VOCs) gas generated during the heating of the heat-sensitive adhesive in the constant temperature heating tank 10 to the fixed box 301. The activated carbon plate 308 adsorbs the VOCs gas to prevent it from being released. The final hot gas flows back to the constant temperature heating tank 10 through the heat return pipe 303 to prevent heat loss. When replacing the activated carbon plate 308, turn the locking screw 310 and open the sealing cover 302 to replace the activated carbon plate 308 in the mounting frame 307.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A heat-sensitive adhesive constant temperature heating device, characterized by, The device includes a constant temperature heating tank (10), which is provided with a feeding hopper (13) connected to it. A temperature sensor (16) is installed on the inner wall of the constant temperature heating tank (10). A heat insulation sleeve (14) is rotatably provided on the constant temperature heating tank (10), and an electric heating tube (15) is installed on the heat insulation sleeve (14). The constant temperature heating tank (10) is also provided with a rotating part (20) and a purification component (30). Rotating component (20), the rotating component (20) includes a gear sleeve (204) fixedly connected to the outer wall of the heat insulation sleeve (14), and a drive gear (203) is meshed on the gear sleeve (204); Purification component (30), the purification component (30) includes a connecting pipe (304) connected to a constant temperature heating tank (10), a fixed box (301) is provided on the connecting pipe (304), the inner wall of the fixed box (301) is provided with an activated carbon plate (308) and a fan (306), and a heat recovery pipe (303) is installed on the fixed box (301), the end of the heat recovery pipe (303) away from the fixed box (301) is connected to the constant temperature heating tank (10).

2. The thermally sensitive adhesive thermostatic heating device according to claim 1, wherein A glue pump (11) is installed on the constant temperature heating tank (10). The glue inlet of the glue pump (11) is connected to the constant temperature heating tank (10) through a pipe, and the glue outlet of the glue pump (11) is connected to a glue delivery pipe (12).

3. The thermally sensitive adhesive thermostatic heating device of claim 1, wherein, The rotating component (20) also includes an L-shaped plate (201) fixed to the constant temperature heating tank (10), on which a motor (202) is mounted, and the output end of the motor (202) is connected to the drive gear (203).

4. The thermostatic heating device for thermal adhesive according to claim 1, characterized in that, The purification component (30) also includes a sealing cover (302) that is movably connected to the fixed box (301), and the sealing cover (302) has a connecting hole (305) that is connected to the heat recovery pipe (303).

5. The thermostatic heating device for thermal adhesive according to claim 1, characterized in that, The fan (306) is fixed in the fixed box (301) by a bracket. The inner wall of the fixed box (301) is provided with a mounting frame (307), and the activated carbon plate (308) is located in the mounting frame (307).

6. The thermostatic heating device for thermal adhesive according to claim 5, characterized in that, The fixed box (301) is threaded with two sets of locking screws (310), and the mounting frame (307) is provided with two sets of threaded holes (309) that are connected to the locking screws (310).

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