Novel adhesive tape coating and drying device

Abstract

The utility model discloses a novel adhesive tape coating and drying device which comprises a drying box, a feeding roller assembly, a discharging roller assembly and an electric heater, the interior of the drying box is divided into a drying cavity and a heating cavity through a middle partition plate, a plurality of air distribution holes are evenly formed in the middle partition plate, and an air inlet pipe is arranged on the heating cavity. The feeding roller assembly is arranged in the drying cavity close to one side of the feeding port, the discharging roller assembly is arranged in the drying cavity close to one side of the discharging port, a middle roller is arranged below the position between the feeding roller assembly and the discharging roller assembly and installed in the drying cavity through a lifting assembly, and an exhaust pipe is arranged at the top of the drying cavity. A hot air circulation assembly is arranged between the exhaust pipe and the air inlet pipe. According to the device, the moving time of the adhesive tape in the drying cavity can be prolonged, the contact time of the adhesive tape and hot air can be prolonged, the drying effect is improved, the utilization rate of waste heat can be increased, the electric energy consumption of an electric heater is reduced, and the operation cost is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive material production technology, specifically relating to a novel tape coating and drying device. Background Technology

[0002] Adhesive tape, as a common adhesive material, is widely used in various industries. In industrial production, it can be used for fixing, bundling, and sealing, improving production efficiency. In daily life, it is also commonly used for repair and pasting. Furthermore, adhesive tape plays an important role in construction, automotive, and electronics industries. Currently, adhesive tape production mainly includes substrate treatment, adhesive application, drying, cutting, and packaging. First, a suitable substrate, such as cloth or plastic film, needs to be selected. Then, adhesive is evenly applied to the substrate, and after drying, the adhesive cures. Finally, it is cut and packaged according to customer requirements to obtain the finished adhesive tape. Drying is a crucial step in tape production technology. Current technology utilizes electrically heated drying devices. After coating with adhesive rollers, the tape is conveyed via feed and discharge roller assemblies. During this conveying process, a motor-driven heater heats and dries the tape. However, this drying method has several drawbacks: firstly, the hot air generated by the electric heater cannot evenly contact the tape, resulting in uneven drying and unsatisfactory drying effects; secondly, the waste air generated during drying contains a significant amount of heat, and direct discharge wastes this energy, increasing the device's operating energy consumption. Therefore, developing a novel tape coating and drying device with a rational structure, significant drying effect, and low energy consumption is essential. Summary of the Invention

[0003] The purpose of this invention is to provide a novel tape coating and drying device with a reasonable structure, significant drying effect, and low energy consumption.

[0004] The purpose of this utility model is achieved as follows: It includes a drying chamber, a feeding roller assembly, a discharging roller assembly, and an electric heater. A middle partition is installed in the lower part of the drying chamber. The longitudinal section of the middle partition is V-shaped, and multiple air distribution holes are evenly distributed on the middle partition. The middle partition divides the inner cavity of the drying chamber into a drying chamber and a heating chamber. The electric heater is located in the heating chamber, and an air inlet pipe is installed on the heating chamber. A filter screen is installed inside the air inlet pipe, and a control valve is installed on the air inlet pipe. One end of the drying chamber has a feeding port, and the other end has a discharging port. The feeding roller assembly is located in the drying chamber near the feeding port, and the discharging roller assembly is located in the drying chamber near the discharging port. An intermediate roller is installed below the feeding roller assembly and the discharging roller assembly. The intermediate roller is installed in the drying chamber via a lifting assembly. An exhaust pipe is located at the top of the drying chamber, and a hot air circulation assembly is installed between the exhaust pipe and the air inlet pipe.

[0005] Compared with existing technologies, the advantages of this device are as follows: First, the device optimizes the internal structure of the drying chamber by incorporating a middle partition. This allows the hot air generated by the electric heater to be evenly distributed through the air distribution holes on the middle partition before entering the drying chamber and making uniform contact with the conveyor belt, thus achieving uniform drying. During this process, the intermediate roller, under the action of the lifting mechanism, can move up and down to adjust the distance between the intermediate roller and the middle partition, and the spacing between the conveyor belt and the air distribution holes, thereby increasing the drying speed. Simultaneously, after being turned by the intermediate roller during the drying process, the conveyor belt moves from bottom to top between the feed roller assembly, the intermediate roller, and the discharge roller assembly. This extends the time the conveyor belt spends in the drying chamber and the contact time with the hot air, further improving the drying effect. Second, the hot air circulation assembly dehumidifies the waste heat air in the drying chamber before returning it to the heating chamber for reheating and reuse. This improves the utilization rate of waste heat, reduces the power consumption of the electric heater, and effectively reduces operating costs. It has the advantages of reasonable structure, significant drying effect, and low energy consumption, making it easy to promote and use. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the connection structure between the intermediate roller 8 and the lifting assembly 9 in this utility model;

[0008] Figure 3 This is a schematic diagram of the structure of the first dehumidifier 16 in this utility model;

[0009] In the diagram: 1-Drying box, 101-Drying chamber, 102-Heating chamber, 2-Feed roller assembly, 3-Discharge roller assembly, 4-Motor heater, 5-Intermediate partition, 6-Air distribution hole, 7-Air inlet pipe, 8-Intermediate roller, 9-Lifting assembly, 10-Exhaust pipe, 11-Air distribution plate, 12-Air distribution pipe, 13-Drainage pipe, 14-Lifting cylinder, 15-Lifting slide, 16-First dehumidifier, 161-Fixed platform, 162-Dehumidifying sponge, 163-Squeezing cylinder, 164-Air guide hood, 165-Squeezing plate, 166-Drainage pipe, 167-Guide rod, 168-Adjusting plate, 169-Elastic element, 17-Second dehumidifier, 171-Movable carbon dehumidifying plate, 18-Circulating fan, 19-Guide roller. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0011] like Figures 1-3 As shown, this utility model includes a drying chamber 1, a feeding roller assembly 2, a discharging roller assembly 3, and an electric heater 4. The electric heater 4 uses a structure used in the prior art, such as an electric heating plate, electric heating wire, or electric heating rod. The feeding roller assembly 2 and the discharging roller assembly 3 are identical in the prior art, both including an upper support roller and a lower pressure roller. The upper support roller is rotatably mounted on the drying chamber 1. A drive motor connected to the upper support roller is provided on the outside of the drying chamber 1. The lower pressure roller is rotatably mounted on the drying chamber 1 above the upper support roller. A middle partition 5 is installed in the lower part of the drying chamber 1. The longitudinal section of the middle partition 5 is V-shaped, and multiple air distribution holes 6 are evenly distributed on the middle partition 5. The middle partition 5 divides the inner cavity of the drying chamber 1. The drying chamber is divided into a drying chamber 101 and a heating chamber 102. The electric heater 4 is installed in the heating chamber 102. An air inlet pipe 7 is installed on the heating chamber 102. A filter screen is installed inside the air inlet pipe 7. A control valve is installed on the air inlet pipe 7. One end of the drying chamber 101 is provided with a feed port and the other end is provided with a discharge port. The feed roller assembly 2 is installed in the drying chamber 101 near the feed port. The discharge roller assembly 3 is installed in the drying chamber 101 near the discharge port. An intermediate roller 8 is installed below the feed roller assembly 2 and the discharge roller assembly 3. The intermediate roller 8 is installed in the drying chamber 101 through a lifting assembly 9. An exhaust pipe 10 is provided at the top of the drying chamber 101. A hot air circulation assembly is provided between the exhaust pipe 10 and the air inlet pipe 7.

[0012] The working process of this device is as follows: The electric heater 4 is turned on, and the control valve on the air inlet pipe 7 is opened, allowing outdoor air to enter the air inlet pipe 7. After passing through the filter screen, the air enters the heating chamber 102. The electric heater 4 heats the air, and the heated air is evenly distributed through the air distribution holes 6 on the intermediate partition 5 before entering the drying chamber 101. At this time, the coated tape enters the discharge roller assembly 2 from the feed port, then passes through the intermediate roller 8 into the discharge roller assembly 3, and finally exits through the discharge port. During the continuous movement of the tape between the feed roller assembly 2, the intermediate roller 8, and the discharge roller assembly 3, the hot air flowing upwards from the air distribution holes 6 dries the tape. During the tape drying process, the intermediate roller 8... Roller 8 has a steering function, allowing the conveyor belt to move from bottom to top between the feed roller assembly 2, intermediate roller 8, and discharge roller assembly 3. This extends the time the conveyor belt moves in the drying chamber 101, prolonging its contact time with hot air and improving the drying effect. Simultaneously, after the hot air dries the conveyor belt, its temperature decreases and its humidity increases. To improve the utilization of the waste heat from the dried conveyor belt, the hot air is converted into waste heat air. This waste heat air is discharged from the exhaust pipe and enters the hot air circulation assembly. The hot air circulation assembly can dehumidify the waste heat air before returning it to the heating chamber 102 for reheating and reuse. This improves the utilization rate of waste heat, reduces the power consumption of the electric heater 4, and effectively reduces operating costs.

[0013] Furthermore, to achieve uniform temperature of the incoming hot air and reduce humidity in the drying chamber, a parallel air distribution plate 11 is installed in the heating chamber 102 below the intermediate partition 5. Multiple air distribution pipes 12, corresponding to the air distribution holes 6, are installed on the air distribution plate 11. The longitudinal cross-sectional shape of each air distribution pipe 12 is trumpet-shaped. The upper end of each air distribution pipe 12 passes through the air distribution holes 6 and extends into the drying chamber, with a gap between the air distribution pipes 12 and the air distribution holes 6. A drain pipe 13, penetrating the air distribution plate 11 and extending to the bottom of the heating chamber 102, is installed at the bottom of the intermediate partition 5. A drain valve is installed on the drain pipe 13. The intermediate partition 5 and the air distribution plate 11... A drain outlet is provided on the drain pipe 13 between 1. The electric heater 4 is installed in the heating chamber 102 below the air distribution pipe 12. When in use, the hot air generated by the electric heater 4 enters the drying chamber 101 through the air distribution pipe 12 to heat the tape. As the heating time increases, the humidity in the drying chamber will increase. During this process, the moisture in the hot air will accumulate on the inner wall of the drying chamber. The accumulated moisture will eventually form water droplets and fall on the surface of the middle partition. Finally, it will flow into the air distribution plate through the air distribution hole on the outside of the air distribution pipe, and then enter the drain hole through the drain outlet. The drain valve on the drain pipe can be opened periodically to discharge the sewage that has entered the drain pipe in a timely manner.

[0014] Furthermore, the lifting assembly includes a lifting cylinder 14 and a lifting slide 15. The lifting cylinder 14 is a structure used in the prior art, and finished products can be directly purchased according to the required stroke size. Vertical grooves are symmetrically machined on the side wall of the drying chamber 101. The lifting slide 15 is slidably installed in the vertical grooves. The roller shafts at both ends of the intermediate roller 8 are rotatably installed in the corresponding lifting slides 15. The lifting cylinder 14 is installed on the outer wall of the drying chamber 101. The movable end of the lifting cylinder 14 is fixedly connected to the lifting slide 15. When the intermediate roller 8 needs to be adjusted, the lifting cylinder 14 is opened, and the movable end of the lifting cylinder 14 is controlled to extend or retract. The lifting cylinder 14 can then drive the lifting slide 15 and the intermediate roller 8 to rise or fall in the vertical grooves, thereby realizing the adjustment of the intermediate roller 8 up and down.

[0015] Furthermore, the hot air circulation assembly includes a circulation pipe and a first dehumidifier 16, a second dehumidifier 17, and a circulation fan 18 arranged sequentially on the circulation pipe. The circulation fan 18 is a structure used in the prior art, and finished products can be directly purchased according to the usage requirements. The first dehumidifier 16 is equipped with a sponge dehumidification component, and the second dehumidifier 17 is movably inserted with an activated carbon dehumidification plate 171. The activated carbon dehumidification plate 171 is a structure used in the prior art, including a plate frame and activated carbon adsorbent material filled in the plate frame. Preferably, the sponge dehumidification component includes a fixed platform 161, a dehumidifying sponge 162, and a compression cylinder 163. The compression cylinder 163 is a structure used in the prior art, and finished products can be directly purchased according to the power used. A fixed platform 161 is installed at the bottom of the first dehumidifier 16. An air guide hood 164 is provided at the upper part of the first dehumidifier 16, with an air guide hole at its center. The dehumidifying sponge 162 is installed on the fixed platform 161, with its upper end extending through the air guide hole to the top of the air guide hood 164. A compression cylinder 163 is located at the top of the first dehumidifier 16, and its movable end is equipped with a compression plate 165 that movably contacts the dehumidifying sponge 162. A drain pipe 166 is provided at the bottom of the first dehumidifier 16, and a drain valve is installed on the drain pipe 166. During use, waste heat air enters the first dehumidifier 16 from the exhaust pipe 10. As the waste heat air flows from the air guide hole, the air... The moisture is first absorbed and dehumidified by the dehumidifying sponge 162. After the first dehumidification, the waste heat air is discharged from the first dehumidifier 16 and enters the second dehumidifier 17 for a second dehumidification. Under the action of the circulating fan 18, the waste heat air after the second dehumidification enters the heating chamber 102 through the air inlet pipe 7. After being heated by the electric heater 4, it is used. Because the temperature of the waste heat air entering the heating chamber 102 is high, the power consumption of the electric heater 4 can be reduced. During use, a temperature sensor can be installed in the heating chamber 102 to control the opening and closing of the electric heater 4 based on the temperature detected by the temperature sensor. When the dehumidifying sponge 162 in the first dehumidifier 16 is saturated with moisture, the squeezing cylinder 163 can be opened. The compression cylinder 163 drives the compression plate 165 downward, which pressurizes the dehumidifying sponge 162, squeezing out the absorbed water. The squeezed water collects at the bottom of the first dehumidifier 16. Opening the drain valve allows the water to drain out of the first dehumidifier 16 through the drain pipe 166. Preferably, to prevent deformation of the dehumidifying sponge 162 during compression, a guide rod 167 is vertically installed on the fixed platform 161, penetrating the dehumidifying sponge 162. The compression plate 165 is slidably mounted on the upper end of the guide rod 167. The guide rod 167 positions the dehumidifying sponge 162 and guides the compression plate 165, ensuring stable deformation of the dehumidifying sponge 162.An adjusting plate 168 is hingedly installed inside the exhaust pipe 10 near the first dehumidifier 16. The upper end of the adjusting plate 168 is connected to the air guide shroud 164 via an elastic element 169. The adjusting plate 168 can adjust the gap with the outlet end of the exhaust pipe 10, thereby adjusting the exhaust volume of the exhaust pipe 10, reducing the exhaust speed, and improving the drying effect of the tape.

[0016] Furthermore, in order to achieve stable conveying of the tape during the drying process, guide rollers 19 are rotatably installed in the drying chamber 101 between the feed roller assembly 2 and the intermediate roller 8, and between the intermediate roller 8 and the discharge roller assembly 3.

Claims

1. A novel tape coating and drying device, comprising a drying chamber (1), a feed roller assembly (2), a discharge roller assembly (3), and an electric heater (4), characterized in that: A middle partition (5) is installed in the lower part of the drying chamber (1). The longitudinal section of the middle partition (5) is V-shaped. Multiple air distribution holes (6) are evenly distributed on the middle partition (5). The middle partition (5) divides the inner cavity of the drying chamber (1) into a drying chamber (101) and a heating chamber (102). The electric heater (4) is installed in the heating chamber (102). An air inlet pipe (7) is installed on the heating chamber (102). A filter screen is installed in the air inlet pipe (7). A control valve is installed on the air inlet pipe (7). One end of the drying chamber (101) is equipped with a... The drying chamber has an inlet and an outlet. The inlet roller assembly (2) is located in the drying chamber (101) near the inlet. The outlet roller assembly (3) is located in the drying chamber (101) near the outlet. An intermediate roller (8) is located below the inlet roller assembly (2) and the outlet roller assembly (3). The intermediate roller (8) is installed in the drying chamber (101) via a lifting assembly (9). An exhaust pipe (10) is located at the top of the drying chamber (101). A hot air circulation assembly is located between the exhaust pipe (10) and the air inlet pipe (7).

2. The novel tape coating and drying device according to claim 1, characterized in that: A parallel air distribution plate (11) is installed in the heating chamber (102) below the intermediate partition (5). Multiple air distribution pipes (12) corresponding to the air distribution holes (6) are installed on the air distribution plate (11). The longitudinal cross-section of the air distribution pipe (12) is trumpet-shaped. The upper end of the air distribution pipe (12) passes through the air distribution hole (6) and extends into the drying chamber. There is a gap between the air distribution pipe (12) and the air distribution hole (6). A drain pipe (13) is installed at the bottom of the intermediate partition (5) that passes through the air distribution plate (11) and extends to the bottom of the heating chamber (102). A drain valve is provided on the drain pipe (13). A drain outlet is provided on the drain pipe (13) between the intermediate partition (5) and the air distribution plate (11). The electric heater (4) is installed in the heating chamber (102) below the air distribution pipe (12).

3. The novel tape coating and drying device according to claim 1, characterized in that: The lifting assembly includes a lifting cylinder (14) and a lifting slide (15). Vertical grooves are symmetrically machined on the side wall of the drying chamber (101). The lifting slide (15) is slidably installed in the vertical groove. The roller shafts at both ends of the intermediate roller (8) are rotatably installed in the corresponding lifting slide (15). The lifting cylinder (14) is installed on the outer wall of the drying chamber (101). The movable end of the lifting cylinder (14) is fixedly connected to the lifting slide (15).

4. The novel tape coating and drying device according to claim 1, characterized in that: The hot air circulation assembly includes a circulation pipe and a first dehumidifier (16), a second dehumidifier (17) and a circulation fan (18) arranged sequentially on the circulation pipe. The first dehumidifier (16) is equipped with a sponge dehumidification component, and the second dehumidifier (17) is movably inserted with an activated carbon dehumidification plate (171).

5. The novel tape coating and drying device according to claim 4, characterized in that: The sponge dehumidification assembly includes a fixed platform (161), a dehumidifying sponge (162), and a squeezing cylinder (163). The fixed platform (161) is installed at the bottom of the first dehumidifier (16). An air guide hood (164) is provided at the upper part of the first dehumidifier (16). An air guide hole is provided at the center of the air guide hood (164). The dehumidifying sponge (162) is installed on the fixed platform (161). The upper end of the dehumidifying sponge (162) extends through the air guide hole to the top of the air guide hood (164). The squeezing cylinder (163) is located at the top of the first dehumidifier (16). A squeezing plate (165) is installed at the movable end of the squeezing cylinder (163) to movably contact the dehumidifying sponge (162). A drain pipe (166) is provided at the bottom of the first dehumidifier (16). A drain valve is installed on the drain pipe (166).

6. The novel tape coating and drying device according to claim 5, characterized in that: A guide rod (167) penetrating the moisture-wicking sponge (162) is vertically installed on the fixed platform (161), and the extrusion plate (165) is slidably installed on the upper end of the guide rod (167).

7. The novel tape coating and drying device according to claim 5, characterized in that: An adjusting plate (168) is hinged in the exhaust pipe (10) near the first dehumidifier (16), and the upper end of the adjusting plate (168) is connected to the air guide cover (164) through an elastic element (169).

8. The novel tape coating and drying device according to claim 1, characterized in that: Guide rollers (19) are rotatably installed in the drying chamber (101) between the feed roller assembly (2) and the intermediate roller (8) and between the intermediate roller (8) and the discharge roller assembly (3).

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