A uniform coating of the production of a rubber adhesive tape

Abstract

This utility model discloses a glue-coating device for producing uniformly coated conveyor belts, relating to the field of coating device technology. It includes a dustproof box, a glue storage box, and a glue-applying roller. A first guide roller is provided on one side of the glue-applying roller located on the belt inlet side, and a transmission component connects the first guide roller and the glue-applying roller. The uniform glue application to the belt is achieved directly through the continuous rotation of the glue-applying roller. A second guide roller is provided on the side of the glue-applying roller away from the belt inlet side. The conveyor belt, after passing through the glue-applying roller, is wound upwards around the second guide roller and then horizontally exits into the dustproof box. This design allows the glue on the conveyor belt to automatically spread evenly on the belt surface under its own gravity and flow characteristics. A second scraper is fixed to the inner top of the dustproof box, with the lower end of the second scraper close to the upper surface of the conveyor belt after it has passed the second guide roller. The further smoothing action of the second scraper further improves the uniformity of the glue application.

Description

Technical Field

[0001] This utility model relates to the field of coating device technology, and in particular to a coating device for producing Marlboro tape with uniform coating. Background Technology

[0002] Mara tape, also known as MARA tape, is suitable for insulation in the electronics industry, such as insulating and wrapping transformers, motors, capacitors, and other motors and electronic components. The tape consists of a substrate and an adhesive (pressure-sensitive adhesive) applied to it. During the tape production process, specialized adhesive application equipment is required to apply the adhesive to the substrate.

[0003] Regarding the adhesive coating device, a search reveals, for example, a tape surface adhesive coating device for tape production provided by patent publication number CN220590561U, comprising: a machine housing, and a cleaning component disposed on one side of the machine housing at the inlet; and an adhesive coating component disposed inside the machine housing, comprising an adjusting roller, an applicator roller, a receiving basin, a rotating roller, and a scraper. The adjusting roller and the applicator roller are vertically arranged inside the machine housing near the inlet, the receiving basin is disposed inside the machine housing with the bottom of the applicator roller located inside the receiving basin, and the rotating roller and the scraper are vertically arranged inside the machine housing near the outlet. The tape is input into the machine housing through the cleaning component and the inlet, and output outside the machine housing through the outlet. The adjusting roller is used to tighten the tape inside the machine housing, facilitating the applicator roller to apply adhesive to one side of the tape. Then, the tape passes between the rotating roller and the scraper, where the scraper removes excess adhesive from the surface, and finally, the tape is output through the outlet.

[0004] Based on the above search and analysis of existing technologies, it has been found that in existing adhesive tape surface coating devices similar to those disclosed above, the adhesive-absorbing cotton strips are spaced apart, resulting in discontinuous adhesive application on the tape surface. The scraping action of the subsequent scraper makes it difficult to achieve uniform coating, and the adhesive is always located on the lower surface of the tape, making it prone to localized pooling due to gravity, which also affects the uniformity of application. Therefore, a uniform adhesive coating device for the production of horse-drawn tape is proposed to improve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a glue coating device for producing Marlboro tape with uniform coating, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a glue-applying device for producing uniformly coated Marlboro tape, comprising a dustproof box and a glue storage box and a glue-applying roller disposed inside the dustproof box. The glue storage box is fixed to the bottom of the dustproof box and contains glue liquid inside. The glue-applying roller is rotatably mounted inside the dustproof box, and the lower half of the glue-applying roller is located inside the glue storage box. A first guide roller is provided on one side of the adhesive roller located on the belt inlet side. The first guide roller is rotatably installed inside the dustproof box, and a transmission component is connected between the first guide roller and the adhesive roller. A second guide roller is provided on the side of the glue roller away from the belt inlet side. The belt that has passed through the glue roller is wound upward around the second guide roller and then horizontally discharged out of the dust box. A second scraper is fixed to the top of the dust box, and the lower end of the second scraper is close to the upper surface of the tape that has been wound around the second guide roller.

[0007] The adhesive tape is evenly coated by continuously rotating the coating roller. The design of the second guide roller and the horizontal exit of the tape after passing through the coating roller into the dust box allows the adhesive on the tape to be automatically spread on the tape surface under its own gravity and flow characteristics. In addition, the uniformity of the adhesive coating can be further improved by the further scraping action of the second scraper.

[0008] As a further supplement to this solution, the ends of the second scraper on both sides of the tape are integrally provided with glue guide plates, which are inclined downwards toward the side away from the second scraper.

[0009] As a further supplement to this solution, the transmission assembly includes a transmission sprocket and a transmission chain. The two transmission sprockets are coaxially fixed to the top roller and the first guide roller, respectively, and the transmission chain is connected between the two transmission sprockets.

[0010] As a further supplement to this solution, a first scraper is fixed to the inner side of the glue storage box. One end of the first scraper is attached to the surface of the upper glue roller, and the end of the first scraper that is attached to the upper glue roller is a flexible part. The first scraper is inclined downward toward the side away from the upper glue roller.

[0011] As a further supplement to this solution, a sealing seat is vertically and slidingly fitted on the inner side of the glue storage box, with the glue located on the upper side of the sealing seat, and a compression spring is provided between the sealing seat and the inner bottom of the glue storage box.

[0012] As a further supplement to this solution, the plane containing the lower end face of the first scraper is higher than the plane containing the lower end face of the top roller.

[0013] As a further supplement to this solution, a switch door is installed on the side of the dust box, and the dust box, switch door and glue storage box are all transparent.

[0014] In summary, the technical effects and advantages of this utility model are as follows: 1. In this utility model, the adhesive tape is uniformly coated by directly utilizing the continuous rotation of the coating roller. Through the design of the second guide roller and the design of winding the adhesive tape that has passed through the coating roller upward around the second guide roller and then horizontally exiting it into the dustproof box, the adhesive on the tape can be automatically spread on the tape surface under its own gravity and flow characteristics. In addition, with the further scraping action of the second scraper, the uniformity of the adhesive coating can be further improved.

[0015] 2. In this utility model, the sealing seat and compression spring ensure that the glue in the glue storage box is always submerged in the bottom surface of the glue roller. Since the plane where the lower end of the first scraper is located is higher than the plane where the lower end of the glue roller is located, when the amount of glue in the glue storage box is insufficient, the sealing seat contacts the glue roller under the action of the compression spring. When the rotating glue roller rubs against the sealing seat, it will make an abnormal noise, which serves as an auditory reminder and has a better reminder effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front cross-section structure in this embodiment; Figure 2 This is a schematic diagram of the cross-sectional structure in this embodiment; Figure 3 This is a schematic diagram of the side cross-section structure in this embodiment.

[0018] In the diagram: 1. Dustproof box; 2. Opening and closing door; 3. Glue storage box; 4. Glue application roller; 5. First guide roller; 6. Belt; 7. First scraper; 8. Second guide roller; 9. Second scraper; 10. Glue guide plate; 11. Drive sprocket; 12. Drive chain; 13. Sealing seat; 14. Compression spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Reference Figure 1-3The device shown is an adhesive applicator for producing evenly coated tape, comprising a dustproof box 1, a glue storage box 3 and an adhesive roller 4 disposed inside the dustproof box 1. The glue storage box 3 is fixed to the inner bottom of the dustproof box 1 and contains adhesive liquid. The adhesive roller 4 is rotatably mounted inside the dustproof box 1, with the lower half of the adhesive roller 4 located inside the glue storage box 3. A switch door 2 is installed on the side of the dustproof box 1. The dustproof box 1, the switch door 2 and the glue storage box 3 are all transparent, for example, made of tempered glass or acrylic sheet, providing good visibility and allowing workers to easily check the adhesive application status of the tape 6 and the remaining amount of adhesive liquid in the glue storage box 3 from the outside, facilitating timely replenishment of adhesive liquid.

[0021] The first guide roller 5 is provided on one side of the adhesive roller 4 located on the inlet side of the tape 6. The first guide roller 5 is rotatably installed inside the dustproof box 1, and a transmission assembly is connected between the first guide roller 5 and the adhesive roller 4. Specifically, the transmission assembly includes a transmission sprocket 11 and a transmission chain 12. The two transmission sprockets 11 are coaxially fixed with the adhesive roller 4 and the first guide roller 5, respectively. The transmission chain 12 is connected between the two transmission sprockets 11. The moving end of the tape 6 moves at a uniform speed under the traction of the traction device. The first guide roller 5 rotates under the friction of the tape 6, thereby driving the adhesive roller 4 to rotate synchronously through the transmission sprocket 11 and the transmission chain 12, so as to achieve uniform adhesive application of the adhesive roller 4.

[0022] In addition, a second guide roller 8 is provided on the side of the glue roller 4 away from the inlet side of the tape 6. The tape 6, after passing through the glue roller 4, is wound upwards around the second guide roller 8 and then horizontally exited into the dustproof box 1. The above design allows the adhesive on the tape 6 to be automatically spread evenly on the surface of the tape 6 under its own gravity and flow characteristics. Furthermore, a second scraper 9 is fixed at the inner top of the dustproof box 1. The lower end of the second scraper 9 is close to the upper surface of the tape 6 after it has been wound around the second guide roller 8. The adhesive on the upper surface of the tape 6 is scraped evenly by the second scraper 9, which can further improve the uniformity of the adhesive application.

[0023] The second scraper 9 has an integrally formed guide plate 10 at both ends of the tape 6. The guide plate 10 is inclined downward toward the side away from the second scraper 9. The excess adhesive scraped by the second scraper 9 will overflow toward both sides of the tape 6 due to its own flow characteristics, and will be discharged through the guide plate 10 under its own tension and viscosity, thereby effectively preventing the adhesive from flowing to the lower surface of the tape 6, thus improving the coating quality.

[0024] It should be noted that the adhesive discharged by the guide plate 10 can fall directly back into the adhesive storage box 3 for continued application. Of course, if the adhesive scraped off here does not meet the standards for reapplication, other collection devices can be used to collect the discharged adhesive.

[0025] The glue storage box 3 has a first scraper 7 fixed inside. One end of the first scraper 7 is attached to the surface of the glue roller 4, and the end of the first scraper 7 that is attached to the glue roller 4 is a flexible part. The first scraper 7 is inclined downward towards the side away from the glue roller 4. The first scraper 7 scrapes off the glue residue on the surface of the glue roller 4 after application, so as to prevent the initial residual glue from being attached to the surface of the glue roller 4 and gradually solidifying. The residual glue after each application can be scraped off in time and integrated into the glue in the glue storage box 3, without affecting the normal use of the glue.

[0026] The inner side of the glue storage box 3 is vertically slidably fitted with a sealing seat 13, the glue is located on the upper side of the sealing seat 13, and a compression spring 14 is provided between the sealing seat 13 and the inner bottom end of the glue storage box 3. The sealing seat 13 and the compression spring 14 can ensure that the glue in the glue storage box 3 is always submerged in the bottom surface of the glue roller 4.

[0027] To conveniently remind staff that the amount of glue in the glue storage box 3 is insufficient, the plane where the lower end face of the first glue scraper 7 is located is higher than the plane where the lower end face of the upper glue roller 4 is located. When the amount of glue in the glue storage box 3 is insufficient, the sealing seat 13 contacts the upper glue roller 4 under the action of the compression spring 14. When the rotating upper glue roller 4 rubs against the sealing seat 13, it will make an abnormal noise, which serves as an auditory reminder and has a better reminder effect.

[0028] The working principle of this utility model is as follows: the moving end of the tape 6 moves at a constant speed under the traction of the traction device, and the first guide roller 5 rotates under the friction of the tape 6, thereby driving the glue roller 4 to rotate synchronously through the transmission sprocket 11 and the transmission chain 12, so as to achieve uniform glue application on the glue roller 4. The first scraper 7 scrapes away the residual adhesive on the surface of the glue roller 4 after application, so that the residual adhesive can be scraped away in time after each application and incorporated into the adhesive storage box 3. The tape 6, which has been coated by the glue roller 4, is wound upwards around the second guide roller 8 and then set horizontally. This allows the adhesive on the tape 6 to be automatically spread evenly on the surface of the tape 6 under its own gravity and flow characteristics. Then, it is scraped evenly by the second scraper 9, which further improves the uniformity of the adhesive application. The excess adhesive scraped by the second scraper 9 will overflow to both sides of the tape 6 under its own flow characteristics and be discharged through the guide plate 10 under its own tension and viscosity. The sealing seat 13, in conjunction with the compression spring 14, ensures that the adhesive in the storage box 3 is always submerged in the bottom surface of the glue roller 4. When the amount of adhesive in the storage box 3 is insufficient, the sealing seat 13 contacts the glue roller 4 under the action of the compression spring 14. When the rotating glue roller 4 rubs against the sealing seat 13, it will make an abnormal noise, which serves as an auditory reminder to remind the staff to replenish the adhesive.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A glue-applying device for producing uniformly coated karaoke tape, comprising a dustproof box (1) and a glue storage box (3) and a glue-applying roller (4) disposed inside the dustproof box (1), characterized in that, The glue storage box (3) is fixed to the inner bottom of the dustproof box (1), and the inside of the glue storage box (3) is filled with glue liquid. The glue application roller (4) is rotatably installed on the inner side of the dustproof box (1), and the lower half of the glue application roller (4) is located on the inner side of the glue storage box (3). The glue roller (4) is provided with a first guide roller (5) on one side of the belt (6) inlet side. The first guide roller (5) is rotatably installed inside the dust box (1), and a transmission component is connected between the first guide roller (5) and the glue roller (4). The glue roller (4) is provided with a second guide roller (8) on the side away from the guide side of the tape (6). The tape (6) passing through the glue roller (4) is wound upward around the second guide roller (8) and then horizontally discharged out of the dust box (1). The dust box (1) has a second scraper (9) fixed at its inner top end, and the lower end of the second scraper (9) is close to the upper surface of the tape (6) after it has been wound around the second guide roller (8).

2. The adhesive coating device for producing uniformly coated karaoke tape according to claim 1, characterized in that: The second scraper (9) has an integrally provided guide plate (10) at both ends of the tape (6), and the guide plate (10) is inclined downward toward the side away from the second scraper (9).

3. The adhesive coating device for producing uniformly coated karaoke tape according to claim 1, characterized in that: The transmission assembly includes a transmission sprocket (11) and a transmission chain (12). The two transmission sprockets (11) are coaxially fixed with the glue roller (4) and the first guide roller (5), respectively. The transmission chain (12) is connected between the two transmission sprockets (11).

4. The adhesive coating device for producing uniformly coated karaoke tape according to claim 1, characterized in that: The inner side of the glue storage box (3) is fixed with a first scraper (7). One end of the first scraper (7) is attached to the surface of the glue roller (4), and the end of the first scraper (7) that is attached to the glue roller (4) is a flexible part. The first scraper (7) is inclined downward toward the side away from the glue roller (4).

5. The adhesive coating device for producing uniformly coated karaoke tape according to claim 4, characterized in that: A sealing seat (13) is vertically and slidingly attached to the inner side of the glue storage box (3). The glue is located on the upper side of the sealing seat (13). A compression spring (14) is provided between the sealing seat (13) and the inner bottom end of the glue storage box (3).

6. The adhesive coating device for producing uniformly coated karaoke tape according to claim 5, characterized in that: The plane where the lower end face of the first scraper (7) is located is higher than the plane where the lower end face of the top roller (4) is located.

7. The adhesive coating device for producing uniformly coated karaoke tape according to claim 1, characterized in that: The dustproof box (1) is equipped with a switch door (2) on its side. The dustproof box (1), the switch door (2) and the glue storage box (3) are all transparent.

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