A gluing device

Abstract

This application relates to the field of adhesive coating technology and provides an adhesive coating device, including a frame, a comma-shaped doctor blade roller, and a coating roller. The comma-shaped doctor blade roller and the coating roller are arranged parallel to each other on the frame. The comma-shaped doctor blade roller is adjustable by sliding along its height. The adhesive coating device also includes: a tank body, which is horizontally slidably connected to the frame. The upper end of the tank body is provided with a groove. The tank body is arranged along the length direction of the comma-shaped doctor blade roller; an elastic scraper block, which is slidably disposed in the tank body and located above the groove opening. The elastic scraper block reciprocates along the length direction of the comma-shaped doctor blade roller; a drive assembly, which is disposed in the tank body and is used to drive the elastic scraper block to reciprocate; and rinsing nozzles, which are disposed at both ends in the sliding direction of the elastic scraper block. When the tank body slides below the comma-shaped doctor blade roller, the elastic scraper block is located at one end of the comma-shaped doctor blade roller. Based on this, it is possible to achieve the effect of automatic cleaning of the comma-shaped doctor blade roller after use.

Description

Technical Field

[0001] This application relates to adhesive application technology and fields, and in particular to an adhesive application apparatus. Background Technology

[0002] Coating machines are mainly used for surface coating processes of films, paper, etc. Coating machines can coat a roll of substrate with a layer of water or other substances with specific functions, and then dry it.

[0003] Existing Chinese patent document CN203664105U discloses a comma-shaped doctor blade adhesive coating device for a coating machine. This device includes a frame, a coating roller rotatably mounted on the frame, and a coating motor that drives the coating roller to rotate. The frame also movably mounts a comma-shaped doctor blade roller that cooperates with the coating roller for coating processing. An adhesive coating cylinder is mounted on the frame and works in conjunction with the comma-shaped doctor blade roller. An adhesive reservoir is located on one side of the frame opposite the coating roller, with the inner end of the reservoir corresponding to the coating roller side serving as the adhesive outlet. An adhesive reservoir adjusting screw is rotatably mounted on the frame relative to the bottom of the reservoir, and an adjusting worm gear is mounted on the adjusting screw. This adjusting worm gear works in conjunction with the bottom of the reservoir. By rotating the adjusting screw, the gap between the adhesive outlet of the reservoir and the coating roller can be adjusted, thereby changing the amount of adhesive applied to the base fabric on the coating roller.

[0004] Regarding the aforementioned technologies, a comma-shaped notch is provided on the outer side of the comma-shaped doctor blade roller. The substrate to be coated moves around the outer side of the coating roller, and the coating water is contained in a glue tank. The comma-shaped doctor blade roller can scrape off excess water adhering to the substrate surface, ensuring that the water is evenly coated on the substrate surface. However, after the coating process is completed, some water will remain in the notch, requiring cleaning of the comma-shaped doctor blade roller. Cleaning is mostly done manually by cleaning personnel. However, because the comma-shaped doctor blade roller is close to the coating roller, the gap is small and difficult to operate. In addition, some notches have a certain length, making it difficult for cleaning personnel to clean the part near the middle of the notch length, making cleaning the comma-shaped doctor blade roller inconvenient. Summary of the Invention

[0005] To facilitate automatic cleaning of the comma scraper roller after use, this application provides an adhesive application device.

[0006] The adhesive application device provided in this application adopts the following technical solution:

[0007] A glue-applying device includes a frame, a comma-shaped doctor blade roller, and a coating roller. The comma-shaped doctor blade roller and the coating roller are arranged parallel to each other on the frame. The comma-shaped doctor blade roller is adjustable by sliding along its height. The glue-applying device further includes: a tank body, which is horizontally slidably connected to the frame. The upper end of the tank body is provided with a groove. The tank body is arranged along the length direction of the comma-shaped doctor blade roller. An elastic scraper block is slidably disposed in the tank body. The elastic scraper block is located above the groove opening and is arranged along the length of the comma-shaped doctor blade roller. The elastic scraper slides back and forth in a directional direction; a drive assembly is disposed in the trough and is used to drive the elastic scraper to move back and forth; a rinsing nozzle is disposed at both ends in the sliding direction of the elastic scraper and faces outward of the comma scraper roller; when the trough slides below the comma scraper roller, the elastic scraper is located at one end of the comma scraper roller; when the elastic scraper slides back and forth and its upper side elastically abuts against the side wall of the comma scraper roller, the elastic scraper sweeps across the lower side of the comma scraper roller.

[0008] By adopting the above technical solution, during the coating process, the substrate is conveyed around the coating roller, and the comma doctor blade roller is adjusted to a position close to the coating roller on the lower side. The adhesive is mainly concentrated on the comma doctor blade roller near the coating roller and at the notched area. When the coating process is completed and the comma doctor blade roller needs to be cleaned, the comma doctor blade roller can be moved upward, and then the groove can be moved horizontally to the lower side of the comma doctor blade roller. At this time, the elastic scraper is located at one end of the comma doctor blade roller, and the drive unit drives the elastic scraper to reciprocate across the lower side of the comma doctor blade roller, and across the notched area and the entire lower side of the comma doctor blade roller. At the same time, the area swept by the elastic scraper can be rinsed by water spray from the rinsing nozzle, achieving the effect of automatic cleaning of the comma doctor blade roller after use.

[0009] Preferably, the driving assembly includes a screw rotatably connected to the trough, a guide rod fixed to the trough, a slider sleeved on the guide rod, and a drive motor. The screw is rotatably connected to the trough and threaded through the slider. The guide rod, the screw, and the comma scraper roller are parallel to each other. The drive motor is disposed in the trough and is drivenly connected to the screw. The elastic scraper and the flushing nozzle are disposed on the slider.

[0010] By adopting the above technical solution, when the drive motor drives the screw to rotate, the slider can slide in the length direction of the guide rod, thereby driving the slider, elastic scraper and flushing nozzle to move back and forth synchronously along the length direction of the comma scraper roller.

[0011] Preferably, the elastic scraper block has a groove on its upper side facing the comma scraper roller, and the cross-sectional shape of the groove is adapted to the outer contour shape of the lower side of the comma scraper roller.

[0012] By adopting the above technical solution, since a notch is provided on the lower side of the comma scraper roller, and the glue is mainly scraped and leveled through the notch, a groove is provided on the upper side of the elastic scraper block that is compatible with the comma scraper roller, so as to ensure that the elastic scraper block can better enter the notch for scraping, thereby better cleaning the lower side of the comma scraper roller.

[0013] Preferably, the edges at both ends of the elastic scraper in the sliding direction are chamfered at the junction with the edge of the groove bottom.

[0014] By adopting the above technical solution, when the elastic scraper moves horizontally and enters the area below the comma scraper roller from the outer side of the end of the comma scraper roller, the chamfer has a guiding function, which facilitates the deformation of the elastic scraper and its elastic contact with the lower side of the comma scraper roller.

[0015] Preferably, baffles are provided at both ends of the comma scraper roller, and the baffles are arranged in a horizontal direction; when the elastic scraper block and the flushing nozzle at one end are away from the position directly below the comma scraper roller, the flushing nozzle at that end faces the lower surface of the baffle.

[0016] By adopting the above technical solution, when the elastic scraper moves back and forth and leaves the position directly below the comma scraper roller, the flushing nozzle at one end of the elastic scraper is away from the comma scraper roller, which can easily cause the water sprayed from the flushing nozzle to be washed to the outside and not fall into the tank properly. However, by setting a baffle, the flushing nozzle that leaves the position directly below the comma scraper roller can be blocked, so that the water can fall back into the tank better after impacting the lower surface of the baffle.

[0017] Preferably, the slider is provided with a sleeve, the side of the sleeve near the comma scraper roller is funnel-shaped, one end of the sleeve faces the lower side of the comma scraper roller, and the other end of the sleeve faces the inside of the tank, and the flushing nozzle is disposed inside the sleeve.

[0018] By adopting the above technical solution, the end of the sleeve near the comma scraper roller is shaped like a trumpet. Therefore, when the water rinsing the nozzle impacts the comma scraper roller, most of the water can directly enter the sleeve from the trumpet and then enter the tank from the sleeve, reducing water splashing outside the tank.

[0019] Preferably, the elastic scraper block is a sponge block or a cloth block, and a guide plate is provided at one end of the sleeve near the comma scraper roller. The upper end of the guide plate is inclined towards the elastic scraper block, and the upper end of the guide plate abuts against the lower end of the elastic scraper block. A squeezing part is provided on the downward-facing side of the baffle. When the squeezing part is vertically opposite to one end of the elastic scraper block and the squeezing part is close to the elastic scraper block, the squeezing part squeezes the elastic scraper block.

[0020] By adopting the above technical solution, when the elastic scraper sweeps across the lower side of the comma scraper roller, the sponge or cloth can better absorb and clean the glue. Since the glue mainly accumulates at the horizontal ends of the elastic scraper when cleaning the comma scraper roller, after the comma scraper roller is cleaned, it can be moved back and forth along the height direction. At this time, the baffle and the extrusion part move synchronously, so the extrusion part can squeeze the elastic scraper, so that the glue can be squeezed out from the elastic scraper, ensuring the cleaning effect of the elastic scraper on the comma scraper roller.

[0021] Preferably, a brush body is provided on the side of the extrusion part away from the elastic scraper; when the brush body moves up and down, one side of the brush body rubs against the end face of the elastic scraper facing the brush body.

[0022] By adopting the above technical solution, since the glue mainly accumulates at the end of the elastic scraper, when the brush body moves up and down synchronously with the comma scraper roller and the baffle, the brush body can clean the end face of the elastic scraper where the glue mainly accumulates, thereby improving the cleaning of residual glue on the elastic scraper body.

[0023] Preferably, the frame is provided with a first driving member for driving the tank to move and adjust.

[0024] By adopting the above technical solution and setting the first driving component, it is easy to drive the tank to slide and adjust in the horizontal direction.

[0025] Preferably, the frame is provided with a second driving member for adjusting the movement of the comma scraper roller, and the comma scraper roller rotates and adjusts along its own axis.

[0026] By adopting the above technical solution, the second driving component facilitates the sliding adjustment of the comma doctor roller along the height direction. At the same time, by adjusting the angle of the comma doctor roller, the angle and gap between the comma doctor roller and the coating roller are controlled, so that the thickness of the adhesive coated on the film is more suitable.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] (1) By setting the cooperation between the tank, the elastic scraper, the drive assembly and the rinsing nozzle, the elastic scraper can slide back and forth along the length of the comma scraper roller, thereby scraping the underside of the glue adhering to the comma scraper roller, so as to achieve the effect of automatically cleaning the comma scraper roller after use.

[0029] (2) By setting up baffles, the water from the rinsing nozzles can be reduced from spraying directly onto the outside of the comma scraper roller, so that the cleaning water can fall back into the tank better.

[0030] (3) By setting the cooperation between the extrusion part and the guide plate, the elastic scraper can be extruded after use, so that the water and glue adsorbed on the elastic scraper can be squeezed out; and by setting the brush body, the glue adhering to both ends of the elastic scraper can be cleaned. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the comma-shaped scraper roller in operation according to this embodiment;

[0032] Figure 2 This is a schematic diagram of the comma-shaped scraper roller in this embodiment;

[0033] Figure 3 This is a schematic diagram of the structure of the comma-shaped scraper roller moving upward for cleaning in this embodiment;

[0034] Figure 4 This is a partial structural diagram of the tank in this embodiment.

[0035] Reference numerals: 1. Frame; 2. Comma-shaped doctor blade roller; 3. Coating roller; 4. Adhesive tank; 5. Groove; 6. Tank body; 7. First drive component; 8. Second drive component; 9. Drive assembly; 91. Screw; 92. Guide rod; 93. Slider; 94. Drive motor; 10. Elastic scraper; 11. Rinsing nozzle; 12. Groove; 13. Baffle; 14. Sleeve; 15. Guide plate; 16. Extrusion section; 17. Brush body. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] This application discloses an adhesive application apparatus. (Refer to...) Figure 1 The coating device includes a frame 1, a comma-shaped doctor blade roller 2, and a coating roller 3. The comma-shaped doctor blade roller 2 and the coating roller 3 are arranged horizontally and parallel to each other on the frame 1. The upper end of the comma-shaped doctor blade roller 2 is higher than the upper end of the coating roller 3. The comma-shaped doctor blade roller 2 slides and adjusts along the height direction. The roll material to be coated is conveyed around the coating roller 3.

[0038] Reference Figure 1 and Figure 2 An adhesive reservoir 4 is slidably adjusted on the horizontal side of the coating roller 3 on the frame 1. The adhesive reservoir 4 is located near the lower part of the comma-shaped doctor blade roller 2 and is used to store the adhesive to be coated. An outlet is provided on the side of the adhesive reservoir 4 facing the coating roller 3. When the adhesive reservoir 4 is close to the coating roller 3, the adhesive in the adhesive reservoir 4 comes into contact with the substrate at the outlet. A notch 5 is provided on the lower side of the comma-shaped doctor blade roller 2 and near the coating roller 3. The cross-section of the notch 5 is comma-shaped, and the comma-shaped doctor blade roller 2, positioned at the notch 5, can scrape off excess adhesive from the outer surface of the substrate.

[0039] Reference Figure 1 and Figure 3 A square-shaped trough 6 is slidably mounted on the frame 1, extending along the length of the comma-shaped doctor blade roller 2. A rectangular opening is located at the upper end of the trough 6. The trough 6 slides horizontally and is positioned above the glue tank 4. A first drive unit 7 and a second drive unit 8 are mounted on the frame 1 for adjusting the movement of the trough 6 and the comma-shaped doctor blade roller 2, respectively. The first drive unit 7 and the second drive unit 8 can be either electric cylinders or pneumatic cylinders to automatically adjust the position of the trough 6 or the comma-shaped doctor blade roller 2. After the comma-shaped doctor blade roller 2 has finished using, the second drive unit 8 moves it upwards, increasing the distance between it and the coating roller 3. Then, the first drive unit 7 moves the trough 6 directly below the comma-shaped doctor blade roller 2.

[0040] Reference Figure 2 and Figure 4 An elastic scraper block 10 is slidably disposed on the groove body 6. The elastic scraper block 10 is rectangular and can be selected as a sponge block or a cloth block. The elastic scraper block 10 is located above the groove opening and slides back and forth along the length direction of the comma scraper roller 2. A drive assembly 9 is provided on the groove body 6 to drive the elastic scraper block 10 to move back and forth. When the trough 6 moves horizontally to directly below the comma scraper roller 2, the elastic scraper block 10 is located outside one end of the comma scraper roller 2, and at this time the upper end of the elastic scraper block 10 is higher than the lowest part of the comma scraper roller 2 that needs to be cleaned; then the drive assembly 9 drives the elastic scraper block 10 to move back and forth. When the elastic scraper block 10 enters directly below the comma scraper roller 2, the elastic scraper block 10 begins to be squeezed, so that the upper side of the elastic scraper block 10 elastically abuts against the lower side wall of the comma scraper roller 2, and finally ensures that the elastic scraper block 10 scrapes over the lower side of the comma scraper roller 2, so as to achieve the scraping and cleaning of the glue on the lower side of the comma scraper roller 2.

[0041] Rinsing nozzles 11 are provided at both ends of the elastic scraper 10, and the rinsing nozzles 11 are connected to a water source through flexible pipes. The rinsing nozzles 11 are located at both ends of the sliding direction of the elastic scraper 10, and the rinsing nozzles 11 face the lower side of the comma scraper roller 2. Therefore, the area scraped by the elastic scraper 10 can be cleaned by rinsing with water, reducing the residue of glue on the comma scraper roller 2; at the same time, because the comma scraper roller 2 has a groove 5, the elastic scraper 10 scrapes along the length of the comma scraper roller 2, which can better clean the groove 5 area, and achieve the effect of automatic cleaning of the comma scraper roller 2 after use.

[0042] Among them, reference Figure 1 and Figure 4The drive assembly 9 includes a screw 91, a guide rod 92, a slider 93, and a drive motor 94. The screw 91 is rotatably connected above the opening of the tank 6. The guide rod 92 is fixed above the opening of the tank 6 and parallel to the axes of the screw 91 and the comma scraper roller 2. The slider 93 is sleeved on and slidably connected to the guide rod 92. The screw 91 passes through the slider 93 and is threadedly connected to the slider 93. The drive motor 94 is selected as a servo motor, which is installed at one end of the tank 6 and is driven by the screw 91. The elastic scraper 10 and the flushing nozzle 11 are fixed to the upper surface of the slider 93. When the drive motor 94 drives the screw 91 to rotate forward and backward, the slider 93 can reciprocate on the guide rod 92, thereby realizing the movement of the flushing nozzle 11 and the elastic scraper 10.

[0043] In some embodiments, a groove 12 is machined on the upper side of the elastic scraper 10 facing the comma scraper roller 2. The cross-sectional shape of the groove 12 is the same as the outer contour shape of the lower side of the comma scraper roller 2, ensuring that the upper side of the elastic scraper 10 can be adapted to the lower outer contour of the comma scraper roller 2 to be cleaned. That is, the elastic scraper 10 can better fill the entire groove 5, improving the cleaning effect of the elastic scraper 10 on the comma scraper roller 2.

[0044] In some embodiments, chamfers are processed at the junction of the two ends of the elastic scraper 10 in the sliding direction and the edge of the groove bottom of the groove 12; since the upper end of the elastic scraper 10 is higher than the lowermost position of the comma scraper roller 2 when the elastic scraper 10 is located on one side of the comma scraper roller 2, and the chamfer can play a guiding role, so that the elastic scraper 10 can slide stably into the lower surface of the comma scraper roller 2 along the chamfered part.

[0045] In some embodiments, baffles 13 are fixed at both ends of the comma scraper roller 2. The baffles 13 are arranged horizontally and are arc-shaped with their arc-shaped openings facing downwards. When the elastic scraper block 10 and the rinsing nozzle 11 at one end leave the position directly below the comma scraper roller 2, the rinsing nozzle 11 at that end faces the lower surface of the baffle 13. Therefore, when the rinsing nozzle 11 at one end of the elastic scraper block 10 leaves the position directly below the comma scraper roller 2, the water sprayed from the rinsing nozzle 11 at that end will impact the lower surface of the baffle 13 instead of spraying directly outside the tank 6, and the water can fall back into the tank 6 better after impacting the lower surface of the baffle 13.

[0046] In some embodiments, refer to Figure 2 and Figure 4A sleeve 14 is vertically fixed on the slider 93. The side of the sleeve 14 closest to the comma scraper roller 2 is funnel-shaped, meaning the opening of the sleeve 14 gradually increases towards the comma scraper roller 2. The upper end of the sleeve 14 is lower than the lower side of the comma scraper roller 2. One end of the sleeve 14 faces the lower side of the comma scraper roller 2, and the other end faces into the tank 6. The rinsing nozzle 11 is fixed inside the sleeve 14. When the water sprayed from the rinsing nozzle 11 impacts the lower surface of the comma scraper roller 2, the water splashes around, preventing some water from falling into the tank 6. The funnel shape allows water to be collected near the source of the splashing water, allowing the water to flow along the sleeve 14 into the tank 6, reducing water splashing outside the tank 6.

[0047] A guide plate 15 is fixed at one end of the sleeve 14 near the comma scraper roller 2. The upper end of the guide plate 15 is inclined towards the elastic scraper block 10, and the upper end of the guide plate 15 abuts against the lower end of the elastic scraper block 10. A pressing part 16 is fixed on the lower surface of the baffle 13. The pressing part 16 is rectangular. In some schemes, the shape of the lower surface of the pressing part 16 is selected to be consistent with the vertical cross-sectional profile of the groove 12. After the comma scraper roller 2 is cleaned, the elastic scraper block 10 is slid away from directly below the comma scraper roller 2, so that the pressing part 16 is vertically aligned with one end of the elastic scraper block 10. Then, the comma scraper roller 2, the baffle 13 and the pressing part 16 are moved downward simultaneously. At this time, the pressing part 16 approaches the elastic scraper block 10 and squeezes the elastic scraper block 10, so that the glue and water can be squeezed out from the elastic scraper block, ensuring the cleaning effect of the elastic scraper block on the comma scraper roller.

[0048] In some embodiments, a brush body 17 is fixed on the side of the extrusion portion 16 away from the elastic scraper block 10. The brush body 17 may be a brush plate with bristles, and the lower end of the brush body 17 is lower than the lower end of the extrusion portion. When the brush body 17 moves up and down with the baffle, the side of the brush body with bristles rubs against the end face of the elastic scraper block 10 facing the brush body 17, thereby cleaning the elastic scraper block 10 better and ensuring the continuous use of the elastic scraper block 10.

[0049] In some embodiments, the comma doctor roller 2 is rotatable and adjustable along its own axis, meaning its angle can be adjusted. An adjustment handwheel can be provided at the end of the comma doctor roller 2 for this purpose. By adjusting the height and angle of the comma doctor roller 2, the angular and positional relationship between the comma doctor roller 2 and the coating roller 3 can be adjusted, resulting in a more suitable adhesive thickness applied to the film. This prevents the adhesive from being too thin to meet application requirements and reduces the risk of the adhesive being too thick, making it difficult to cure and ultimately causing backflow marks.

[0050] The implementation principle of the adhesive application device in this application embodiment is as follows: When it is necessary to clean the comma scraper roller 2, the second driving member 8 moves the comma scraper roller 2 upward, and then the first driving member 7 moves the tank 6 horizontally to directly below the comma scraper roller 2. Then, the driving component 9 controls the slider 93 to move back and forth, driving the elastic scraper block 10 to scrape the lower side of the comma scraper roller 2, so that the glue remaining on the comma scraper roller 2 is scraped off; at the same time, the rinsing nozzle can repeatedly spray water to rinse the lower side of the comma scraper roller 2, so as to achieve the effect of automatic cleaning of the comma scraper roller 2 after use.

[0051] 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-applying apparatus, comprising a frame (1), a comma-shaped doctor blade roller (2), and a coating roller (3), wherein the comma-shaped doctor blade roller (2) and the coating roller (3) are arranged parallel to each other on the frame (1), characterized in that, The comma-shaped scraper roller (2) slides and adjusts along the height direction, and the adhesive application device further includes: The trough (6) is horizontally slidably connected to the frame (1). The upper end of the trough (6) is provided with a slot. The trough (6) is arranged along the length direction of the comma scraper roller (2). An elastic scraper (10) is slidably disposed on the groove (6). The elastic scraper (10) is located above the groove opening. The elastic scraper (10) slides back and forth along the length direction of the comma scraper roller (2). A drive assembly (9) is disposed in the groove (6) and is used to drive the elastic scraper (10) to reciprocate. A flushing nozzle (11) is provided at both ends of the elastic scraper (10) in the sliding direction, and the flushing nozzle (11) faces the outside of the comma scraper roller (2); When the groove (6) slides to the bottom of the comma scraper roller (2), the elastic scraper block (10) is located at one end of the comma scraper roller (2); when the elastic scraper block (10) slides back and forth and its upper side is elastically pressed against the side wall of the comma scraper roller (2), the elastic scraper block (10) sweeps across the lower side of the comma scraper roller (2); The drive assembly (9) includes a screw (91) rotatably connected to the trough (6), a guide rod (92) fixed to the trough (6), a slider (93) sleeved on the guide rod (92), and a drive motor (94). The screw (91) is rotatably connected to the trough (6) and threaded through the slider (93). The guide rod (92), the screw (91), and the comma scraper roller (2) are parallel to each other. The drive motor (94) is located in the trough (6) and is drivenly connected to the screw (91). The elastic scraper (10) and the flushing nozzle (11) are located on the slider (93). The comma scraper roller (2) is provided with baffles (13) at both ends, and the baffles (13) are arranged in a horizontal direction; when the elastic scraper block (10) and the flushing nozzle (11) at one end are away from the position directly below the comma scraper roller (2), the flushing nozzle (11) at that end faces the lower surface of the baffle (13); A sleeve (14) is provided on the slider (93). The sleeve (14) is flared on the side near the comma scraper roller (2). One end of the sleeve (14) faces the lower side of the comma scraper roller (2), and the other end of the sleeve (14) faces the inside of the tank (6). The flushing nozzle (11) is located inside the sleeve (14).

2. The adhesive applicator according to claim 1, characterized in that, The elastic scraper block (10) has a groove (12) on the upper side facing the comma scraper roller (2), and the cross-sectional shape of the groove (12) is adapted to the outer contour shape of the lower side of the comma scraper roller (2).

3. The adhesive applicator according to claim 2, characterized in that, The edges of the elastic scraper (10) at both ends of the sliding direction are chamfered at the junction with the edge of the groove (12) bottom.

4. The adhesive applicator according to claim 1, characterized in that, The elastic scraper block (10) is a sponge block or a cloth block. The sleeve (14) is provided with a guide plate (15) at one end near the comma scraper roller (2). The upper end of the guide plate (15) is inclined towards the elastic scraper block (10). The upper end of the guide plate (15) abuts against the lower end of the elastic scraper block (10). The downward-facing side of the baffle (13) is provided with a squeezing part (16). When the squeezing part (16) is vertically opposite to one end of the elastic scraper block (10) and the squeezing part (16) is close to the elastic scraper block (10), the squeezing part (16) squeezes the elastic scraper block (10).

5. The adhesive applicator according to claim 4, characterized in that, A brush body (17) is provided on the side of the extrusion part (16) away from the elastic scraper (10); when the brush body (17) moves up and down, one side of the brush body (17) rubs against the end face of the elastic scraper (10) facing the brush body (17).

6. The adhesive applicator according to claim 1, characterized in that, The frame (1) is provided with a first drive member (7) for driving the tank (6) to move and adjust.

7. The adhesive applicator according to claim 1, characterized in that, The frame (1) is provided with a second driving member (8) for driving the comma scraper roller (2) to move and adjust, and the comma scraper roller (2) rotates and adjusts along its own axis.

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