Glue drip preventing device

Abstract

The application relates to the technical field of edge sealing tape glue coating technology, and discloses a glue dripping prevention device, which comprises a mounting seat, a glue tank and a glue coating roller. The mounting seat is fixedly installed at a predetermined position, and the glue tank is arranged on the mounting seat. The glue coating roller is vertically arranged at the bottom of the mounting seat and rotationally matched with the mounting seat around the self-axis of the glue coating roller. The glue coating roller rotates through a driving unit. The roller surface of the glue coating roller is in contact with the edge sealing tape. The roller wall of the glue coating roller is circumferentially provided with an annular groove around the self-axis direction of the glue coating roller. The annular groove divides the glue coating roller along the self-axis direction into a glue coating area and a non-glue coating area. The edge sealing tape is divided into a to-be-pasted area and a glue overflow area along the vertical direction. The to-be-pasted area of the edge sealing tape is arranged in the glue coating area of the glue coating roller, and the glue overflow area of the edge sealing tape is arranged in the non-glue coating area of the glue coating roller. The application has the effect of reducing the possibility of glue on the edge sealing tape dripping into the working area.

Description

Technical Field

[0001] This application relates to the field of edge banding adhesive scraping technology, and in particular to an adhesive anti-drip device. Background Technology

[0002] In the edge banding process of furniture boards, edge banding tape is usually pasted on the side of the board. The glue application process generally adopts a vertical roller coating process, in which molten hot melt glue flows out from the glue hopper above and forms a uniform glue film on the outer wall of the vertically rotating glue roller. The edge banding tape travels horizontally and briefly contacts the roller surface of the glue roller before the glue film is transferred to its back.

[0003] Currently, the industry standard is to make the width of the adhesive layer equal to, or even slightly wider than, the width of the edge banding tape by 0.2 mm to ensure that there are no white lines due to missing adhesive after edge banding. However, this full-width adhesive application method has a side effect: after the edge banding tape leaves the adhesive roller, there is no buffer zone at the edge of the adhesive layer. Under the combined action of surface tension and gravity, the molten adhesive is very likely to flow to both sides when the conveyor vibrates or a slight breeze blows, eventually dripping onto the workbench, conveyor belt, or board surface, causing contamination, board sticking, and increased subsequent cleaning costs. Utility Model Content

[0004] To reduce the possibility of adhesive dripping from the edge sealing tape into the work area, this application provides an adhesive drip prevention device.

[0005] The adhesive anti-drip device provided in this application adopts the following technical solution: A glue drip prevention device includes a mounting base, a glue hopper, and a glue application roller, wherein: The mounting base is fixedly installed at a predetermined position, and the glue hopper is disposed on the mounting base; The glue-applying roller is vertically mounted at the bottom of the mounting base and rotates around its own axis in conjunction with the mounting base. The glue-applying roller rotates through a drive unit, and the roller surface of the glue-applying roller contacts the sealing strip. The roller wall of the coating roller is provided with an annular groove around its own axis, which divides the coating roller into a coating area and a non-coating area along its own axis. The edge sealing tape is divided into a bonding area and an overflow area along the vertical direction. The bonding area of ​​the edge sealing tape is placed in the glue application area of ​​the glue application roller, and the overflow area of ​​the edge sealing tape is placed in the non-glue application area of ​​the glue application roller.

[0006] Optionally, the mounting base is provided with a guide unit, which is located near the glue roller and away from the end of the edge sealing tape, and the guide unit is in contact with the edge sealing tape.

[0007] Optionally, the guide unit includes a fixing frame and a guide plate, wherein: The fixing bracket is mounted on the mounting base; The guide plate is horizontally arranged on the fixed frame, and multiple plates are arranged along the vertical direction. The side of the guide plate is in contact with the sealing strip.

[0008] Optionally, the guide plate is mounted on the fixed frame via a mounting plate.

[0009] Optionally, a collection seat is provided below the coating roller, the collection seat is fixed in a predetermined position, and a collection groove for placing the coating roller is provided on the top of the collection seat.

[0010] Optionally, the driving unit is a drive motor, which is fixed in a predetermined position, and the motor shaft of the drive motor is connected to the bottom of the coating roller through a transmission shaft, which passes through the bottom of the collection tank.

[0011] Optionally, the top sidewall of the collection tank is provided with an overflow outlet; A flow guide groove is provided on the side wall of the collection seat near the overflow port; A collection box is provided below the flow channel.

[0012] In summary, this application includes at least one of the following beneficial technical effects: 1. The annular groove forms a non-adhesive area on the coating roller, which actively divides and isolates the molten hot melt adhesive, cuts off the path of the adhesive to the edge of the sealing strip, and intercepts the adhesive before it reaches the physical edge of the sealing strip, preventing the adhesive from dripping into the working area and reducing the amount of subsequent cleaning work and the risk of equipment contamination. 2. The exit-side guiding unit provides physical constraint with a multi-layer guide plate narrow-edge contact method the moment the edge banding tape leaves the glue coating roller. This not only resists the suction force generated by the rotation of the glue coating roller and prevents the edge banding tape from being rolled in, but also keeps the edge banding tape moving horizontally and stably, ensuring the integrity of the glue layer and accurate positioning, and providing a continuous and reliable material tape state for subsequent pressing processes. 3. The collection base, collection tank, overflow port, guide channel and detachable collection box prevent the glue from solidifying and accumulating at the bottom of the equipment, extending the equipment maintenance cycle and service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0014] Figure 2 This is a schematic diagram illustrating the relative positions of the guide unit and the coating roller in an embodiment of this application.

[0015] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0016] Explanation of reference numerals in the attached figures: 1. Mounting base; 2. Glue hopper; 3. Glue application roller; 31. Circular groove; 4. Guide unit; 41. Fixing frame; 42. Guide plate; 421. Mounting plate; 5. Collection seat; 51. Collection trough; 52. Glue overflow port; 53. Flow guide groove; 6. Drive motor; 61. Transmission shaft. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0018] This application discloses an adhesive anti-drip device.

[0019] A glue drip prevention device includes a mounting base 1, a glue hopper 2, and a glue applicator roller 3. The mounting base 1 is fixed at a predetermined position, and the glue hopper 2 is positioned above the mounting base 1. The glue applicator roller 3 is vertically mounted at the bottom of the mounting base 1 and is driven by a drive unit to rotate around its own axis. A circumferential groove 31 is formed on the roller wall of the glue applicator roller 3 along its axial direction. This groove 31 divides the roller surface of the glue applicator roller 3 axially into an upper glue-applying area and a lower non-glue-applying area. Correspondingly, the edge sealing tape is vertically divided into an upper area to be pasted and a lower overflow area. During operation, the area to be pasted of the edge sealing tape contacts the glue-applying area of ​​the glue applicator roller 3 and completes the glue application, while the overflow area corresponds to the non-glue-applying area of ​​the glue applicator roller 3.

[0020] The adhesive layer is actively partitioned and isolated in space by the annular groove 31 on the adhesive roller 3. The uncoated area where the annular groove 31 is located forms a physical barrier, cutting off the possibility of molten hot melt adhesive spreading continuously to the edge of the sealing strip.

[0021] As the edge sealing tape travels and contacts the adhesive roller 3, its width direction is predefined, with the upper part being the area to be bonded and the lower part being the area to prevent adhesive overflow. When the edge sealing tape passes horizontally through the vertically rotating adhesive roller 3, only the upper part to be bonded contacts the adhesive area on the upper part of the adhesive roller 3, thus transferring the adhesive. The lower overflow area of ​​the edge sealing tape faces the lower non-adhesive area formed by the annular groove 31 on the adhesive roller 3. Since there is no adhesive on the roller surface in this area, and the annular groove 31 itself is a recess, it is impossible to transfer the adhesive to the lower edge of the edge sealing tape, thus preventing the adhesive from reaching the bottom of the edge sealing tape.

[0022] When a very small amount of adhesive tends to migrate downwards due to gravity or vibration, the excess adhesive area below it can effectively contain and collect this portion of adhesive. In this way, the adhesive is intercepted before reaching the physical edge of the edge banding, thus preventing it from dripping into the work area. After the edge banding is applied, the excess adhesive area can simply be cut off.

[0023] A guide unit 4 is provided on the mounting base 1. The guide unit 4 is located on the exit side of the glue-applying roller 3, that is, at the position where the edge sealing tape leaves the glue-applying roller 3 after glue application. The guide unit 4 maintains contact with the edge sealing tape to prevent the edge sealing tape from being caught by the glue-applying roller 3.

[0024] The guide unit 4 specifically consists of a fixing frame 41 and guide plates 42. The fixing frame 41 is securely mounted on the mounting base 1. Multiple guide plates 42 are horizontally fixed to the fixing frame 41 by mounting plates 421 and arranged vertically. The sides of these guide plates 42 are in contact with the surface of the adhesive-coated edge banding, providing stable guidance and limiting.

[0025] The guide unit 4, located on the exit side, provides physical constraint the instant the edge sealing tape leaves the glue roller 3, resisting the pulling force caused by the adhesive during the rotation of the glue roller 3. This forces the edge sealing tape to leave smoothly along a preset horizontal path, effectively preventing it from being pulled in along with the glue roller 3. Simultaneously, it continues to play an auxiliary positioning role, ensuring the edge sealing tape remains stable before entering the subsequent pressing process after glue application.

[0026] By making the sealing tape contact the narrow edge in the thickness direction of the guide piece 42, the smaller contact surface minimizes the adhesion and friction between the two, and the probability and amount of molten adhesive being scraped or adhered to the guide piece 42 are greatly reduced.

[0027] A collection seat 5 is fixed in a predetermined position directly below the coating roller 3, and a collection groove 51 is opened on its top. The lower end of the coating roller 3 extends into and is located inside the collection groove 51, and a sufficient gap is maintained between the side wall of the collection groove 51 and the roller surface of the coating roller 3, so as to receive and collect the glue flowing down from the coating roller 3.

[0028] An overflow port 52 is provided on the top side wall of the collection tank 51. Corresponding to the position of the overflow port 52, a guide channel 53 is provided on the outer side wall of the collection seat 5, and a detachable collection box is finally connected to the bottom of the guide channel 53.

[0029] When the liquid level in the collection tank 51 exceeds the overflow port 52 on the side wall, the adhesive overflows from the port and enters the guide channel 53. The liquid slides down the slope of the guide channel 53 and finally drips into the detachable collection box below it, completing the entire collection process.

[0030] The drive unit is specifically a drive motor 6. The drive motor 6 is directly fixed in a predetermined position, and its motor shaft is connected to the bottom of the glue-applying roller 3 via a transmission shaft 61. This transmission shaft 61 passes through the bottom structure of the collection tank 51 from top to bottom in a sealed manner. This reduces the possibility of glue flowing down the transmission shaft 61 while ensuring power transmission.

[0031] The implementation principle of the glue anti-drip device in this application embodiment is as follows: the drive motor 6 drives the vertically installed glue-applying roller 3 to rotate around its own axis through the transmission shaft 61. The glue hopper 2 continuously supplies glue to the upper part of the glue-applying roller 3. The sealing tape passes horizontally through the glue-applying roller 3, and the upper part of the area to be pasted contacts the glue-applying area of ​​the upper part of the glue-applying roller 3 to transfer the glue liquid. The lower overflow area is directly opposite the non-glue-applying area formed by the annular groove 31 at the lower part of the glue-applying roller 3. The annular groove 31 cuts off the path of the glue liquid to spread to the edge of the sealing tape. A very small amount of glue that flows downward is contained and collected by the overflow area, thus sealing the edge. The moment the adhesive is applied and the adhesive roller 3 leaves the roller, the guide unit 4, consisting of a fixed frame 41 and multiple horizontal guide plates 42, immediately provides physical constraint on the outlet side of the mounting base 1 in a narrow-edge contact manner, resisting the suction force of the adhesive roller 3 and stabilizing the guide. At the same time, the lower end of the adhesive roller 3 extends into the collection groove 51 of the fixed collection base 5, and the flowing adhesive is collected by the collection groove 51. After the liquid level exceeds the overflow port 52 on the side wall, the adhesive slides into the detachable collection box through the guide groove 53. Throughout the process, the adhesive is spatially partitioned, intercepted, guided and recycled to avoid dripping.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A glue drip-proof device, characterized in that: Includes mounting base, glue hopper, and glue application roller, among which: The mounting base is fixedly installed at a predetermined position, and the glue hopper is disposed on the mounting base; The glue-applying roller is vertically mounted at the bottom of the mounting base and rotates around its own axis in conjunction with the mounting base. The glue-applying roller rotates through a drive unit, and the roller surface of the glue-applying roller contacts the sealing strip. The roller wall of the coating roller is provided with an annular groove around its own axis, which divides the coating roller into a coating area and a non-coating area along its own axis. The edge sealing tape is divided into a bonding area and an overflow area along the vertical direction. The bonding area of ​​the edge sealing tape is placed in the glue application area of ​​the glue application roller, and the overflow area of ​​the edge sealing tape is placed in the non-glue application area of ​​the glue application roller.

2. The glue anti-drip device according to claim 1, characterized in that: The mounting base is provided with a guide unit, which is located near the glue roller and at a position away from the end of the edge sealing tape. The guide unit is in contact with the edge sealing tape.

3. The glue anti-drip device according to claim 2, characterized in that: The guiding unit includes a fixing frame and a guide plate, wherein: The fixing bracket is mounted on the mounting base; The guide plate is horizontally arranged on the fixed frame, and multiple plates are arranged along the vertical direction. The side of the guide plate is in contact with the sealing strip.

4. The glue anti-drip device according to claim 3, characterized in that: The guide plate is mounted on the fixed frame via a mounting plate.

5. The glue anti-drip device according to claim 1, characterized in that: A collection seat is provided below the coating roller, the collection seat is fixed in a predetermined position, and a collection groove for placing the coating roller is provided on the top of the collection seat.

6. The glue anti-drip device according to claim 5, characterized in that: The driving unit is a drive motor, which is fixed in a predetermined position. The motor shaft of the drive motor is connected to the bottom of the coating roller through a transmission shaft, which passes through the bottom of the collection tank.

7. The glue anti-drip device according to claim 5, characterized in that: The top side wall of the collection tank is provided with an overflow outlet; A flow guide groove is provided on the side wall of the collection seat near the overflow port; A collection box is provided below the flow channel.

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