Adhesive sticker coating device with adjustable coating thickness

Abstract

The utility model discloses a non-setting adhesive coating device with adjustable coating thickness, relates to the technical field of coating equipment, and aims to solve the technical problem that the stability of a scraper in work is not favorably guaranteed because the existing height adjusting structure is connected with the scraper through a bolt and other parts except the bolt connecting part have insufficient support performance on the scraper. Comprising a mounting table, a glue supply mechanism and a lifting mechanism, the glue supply mechanism and the lifting mechanism are arranged on the mounting table, a lifting column is mounted on a screw in a threaded mode, a supporting plate is arranged at the lower end of the lifting column, a coating scraper is arranged on the supporting plate, and a guide scraper is mounted at the front end of the coating scraper through a bolt. The coating device has the advantages that the scraper is doubly fixed, the mounting and supporting stability of the scraper is improved, the scraper is effectively prevented from shaking or displacing during working, the coating stability and precision are guaranteed, the coating uniformity is guaranteed by utilizing the scraper in a special shape, redundant sizing materials are guided and recycled, and waste of the redundant sizing materials is prevented.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and more specifically, to a self-adhesive coating device with adjustable coating thickness. Background Technology

[0002] The self-adhesive coating device is the core equipment for the production of self-adhesive products. During operation, the unwinding device smoothly unfolds the substrate to be processed and enters the coating device. The adhesive is evenly coated on the substrate through the supply of adhesive and the doctor blade. After coating, the substrate is discharged and enters the drying device for drying. After drying, the finished product is rewound. The whole process is highly automated, which can ensure stable product quality and efficiently assist production.

[0003] The existing self-adhesive coating device with adjustable coating thickness adjusts the height of the doctor blade via a height adjustment mechanism, thereby adjusting the coating thickness. However, the height adjustment mechanism is bolted to the doctor blade. Apart from the bolt connection, the other parts provide insufficient support for the doctor blade, which is detrimental to ensuring the stability of the doctor blade during operation. Therefore, we propose a self-adhesive coating device with adjustable coating thickness. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a self-adhesive coating device with adjustable coating thickness. This solves the technical problem that the current height adjustment structure is connected to the scraper by bolts, and the support of other parts besides the bolt connection is insufficient to ensure the stability of the scraper during operation.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adhesive coating device with adjustable coating thickness, including a mounting platform and an adhesive supply mechanism and a lifting mechanism mounted on the mounting platform. The lifting mechanism includes a mounting frame mounted on the mounting platform. A screw is symmetrically and rotatably mounted on the lower end of the mounting frame. A lifting column is threaded onto the screw. A support plate is provided at the lower end of the lifting column. A coating scraper is provided on the support plate. A guide scraper is bolted to the front end of the coating scraper. The adhesive supply mechanism includes an adhesive hopper mounted on the upper end of the mounting frame. An inlet is provided on one side of the upper surface of the adhesive hopper.

[0006] Preferably, the support plate is arranged in an arc shape that curves downward from the middle to both ends, and the coating blade has a support opening that matches the shape of the support plate, with the front part of the support plate located inside the support opening.

[0007] Preferably, the support plate is symmetrically provided with fixing plates on both sides, the fixing plates are provided with fixing holes, the coating blade is provided with threaded holes that are adapted to the fixing holes, and the fixing plates and the coating blade are connected by bolts.

[0008] Preferably, the two ends of the coating blade are curved forward, the middle of the guide blade is curved forward, the guide blade is inclined backward from the middle to both ends, and the two ends of the guide blade are located within the arc of the two ends of the coating blade.

[0009] Preferably, a gear connected to the screw shaft is rotatably mounted on the upper end of the mounting bracket, the gears meshing with each other, and a motor is provided on the upper end of the mounting bracket, the main shaft of the motor being connected to the shaft of the gear located on the left side.

[0010] Preferably, the lower end of the adhesive hopper is provided with an adhesive outlet pipe, and the lower end of the adhesive outlet pipe is provided with adhesive outlet heads at equal intervals. The front end of the adhesive hopper is provided with a first conveying pump, and the outlet of the first conveying pump is provided with a pipe connected to the adhesive outlet pipe. The upper end of the adhesive hopper is provided with a second conveying pump, and the inlet of the second conveying pump is provided with a suction pipe. The end of the suction pipe is provided with two suction pipes, and the end of the suction pipe is located within the arc of both ends of the coating blade. The inlet of the first conveying pump and the outlet of the second conveying pump are both provided with pipes connected to the adhesive hopper.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model designs a support plate structure. The support plate is an arc shape that bends downward from the middle to both ends, which is adapted to the support port on the coating blade. The front part of the support plate is embedded in the support port, providing support throughout the support port area, which greatly enhances the support stability of the blade and ensures that the blade is more stable during operation, improving the uniformity and quality of coating. The fixing plates on both sides of the support plate are connected to the coating blade by bolts, further reinforcing the connection between the blade and the support structure. The double fixing method effectively prevents the blade from shaking or shifting during operation, ensuring the stability and accuracy of coating. This solves the problem that the current height adjustment structure is connected to the blade by bolts, and the support of the blade is insufficient except at the bolt connection point, which is not conducive to ensuring the stability of the blade during operation.

[0013] 2. This utility model also features a coating blade and a guide blade structure. The guide blade is curved forward in the middle and tilted backward at both ends. The two ends of the guide blade are located within the arc of the coating blade. This unique design allows the guide blade to perform preliminary coating of the adhesive and guide excess adhesive to both sides, causing excess adhesive to accumulate at the curved ends of the coating blade. The forward curvature of the coating blade at both ends can limit the adhesive, making it easier to recover excess adhesive and preventing waste. The coating blade can also perform secondary coating, ensuring uniform adhesive coating and improving product coating quality. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0016] Figure 3 This is a partial front view schematic diagram of the structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the scraper structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the scraper disassembly structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the scraper structure after disassembly of this utility model;

[0020] Figure 7 This is a bottom view of the adhesive box structure of this utility model.

[0021] The following are the labels in the diagram: 101, mounting platform; 200, glue supply mechanism; 201, glue bin; 202, first delivery pump; 203, second delivery pump; 204, suction pipe; 205, glue outlet pipe; 300, lifting mechanism; 301, mounting frame; 302, motor; 303, coating blade; 304, guide blade; 305, lifting column; 306, support port; 307, support plate; 308, screw. Detailed Implementation

[0022] like Figures 1 to 7 As shown, this utility model relates to an adjustable coating thickness self-adhesive coating device, including a mounting platform 101 and a glue supply mechanism 200 and a lifting mechanism 300 disposed on the mounting platform 101. The lifting mechanism 300 includes a mounting frame 301 disposed on the mounting platform 101. A screw 308 is symmetrically and rotatably mounted on the lower end of the mounting frame 301. A lifting column 305 is threadedly mounted on the screw 308. A support plate 307 is disposed at the lower end of the lifting column 305. A coating scraper 303 is disposed on the support plate 307. A guide scraper 304 is bolted to the front end of the coating scraper 303. The glue supply mechanism 200 includes a glue tank 201 disposed on the upper end of the mounting frame 301. A feed port is disposed on one side of the upper end face of the glue tank 201. This utility model uses a new support structure and bolts to form a double fixing method for installing the scraper, which improves the installation and support stability of the scraper, effectively prevents the scraper from shaking or shifting during operation, and ensures the stability and accuracy of coating. In addition, the special-shaped scraper ensures uniform coating and guides and recovers excess adhesive, preventing waste of excess adhesive.

[0023] Specifically, the support plate 307 is curved downwards from the middle to both ends in an arc shape. The coating blade 303 has a support opening 306 that matches the shape of the support plate 307, and the front part of the support plate 307 is located within the support opening 306. The support plate 307 is curved downwards from the middle to both ends in an arc shape, which matches the support opening 306 on the coating blade 303. The front part of the support plate 307 is embedded in the support opening 306, providing support throughout the area of ​​the support opening 306, which greatly enhances the stability of the support for the blade, ensures that the blade is more stable during operation, and improves the uniformity and quality of coating.

[0024] Furthermore, symmetrical fixing plates are provided on both sides of the support plate 307. The fixing plates have fixing holes, and the coating blade 303 has threaded holes that match the fixing holes. The fixing plates and the coating blade 303 are connected by bolts. The fixing plates on both sides of the support plate 307 are connected to the coating blade 303 by bolts, further reinforcing the connection between the blade and the support structure. This double fixing method effectively prevents the blade from shaking or shifting during operation, ensuring the stability and accuracy of the coating process.

[0025] It is worth noting that the coating blade 303 has forward-curved arc-shaped ends on both sides, and the guide blade 304 has a forward-curved arc-shaped middle section. The guide blade 304 is inclined backward from the middle to both ends, with its ends located within the arc-shaped ends of the coating blade 303. This unique design allows the guide blade 304 to initially coat the adhesive and guide excess adhesive to both sides, causing it to accumulate at the curved ends of the coating blade 303. The forward-curving ends of the coating blade 303 also limit the adhesive's movement, facilitating the recovery of excess adhesive and preventing waste. The coating blade 303 can also perform secondary coating, ensuring uniform adhesive coating and improving product coating quality.

[0026] It is worth mentioning that a gear connected to the shaft of the screw 308 is rotatably mounted on the upper end of the mounting bracket 301. The gears mesh with each other. A motor 302 is installed on the upper end of the mounting bracket 301, and the main shaft of the motor 302 is connected to the shaft of the gear located on the left. When the motor 302 is working, it can rotate the gear located on the left, which can drive the gear on the right to rotate, thereby making the two screws 308 rotate synchronously.

[0027] It is worth noting that a dispensing pipe 205 is provided at the lower end of the glue tank 201, and dispensing heads are provided at equal intervals at the lower end of the dispensing pipe 205. A first conveying pump 202 is provided at the front end of the glue tank 201, and a pipe is provided at the outlet of the first conveying pump 202 to connect with the dispensing pipe 205. A second conveying pump 203 is provided at the upper end of the glue tank 201, and a suction pipe is provided at the inlet of the second conveying pump 203. Two suction pipes 204 are provided at the end of the suction pipe. The ends of the suction pipes 204 are located within the arcs at both ends of the coating blade 303. Pipes are provided at the inlet of the first conveying pump 202 and the outlet of the second conveying pump 203 to connect with the glue tank 201. During the process of transporting the coated items, the first conveying pump 202 transports the adhesive in the adhesive tank 201 to the adhesive outlet pipe 205, and the adhesive can be discharged onto the coated items through the adhesive outlet head at the lower end of the adhesive outlet pipe 205. The second conveying pump 203 operates to make the suction pipe 204 collect the excess adhesive that has accumulated at both ends of the coating blade 303 and return it to the adhesive tank 201 to prevent the waste of adhesive.

[0028] Working Principle: This embodiment provides an adjustable self-adhesive coating device. During use, the height of the squeegee is adjusted according to the required coating thickness. The motor 302 rotates two screws 308, causing the lifting column 305 to rise and fall, thus adjusting the squeegee height. During coating, the item to be coated is placed on the upper end of the mounting platform 101. The conveying device transports the item past the adhesive tank 201 and below the coating squeegee 303. During this transport, the first conveying pump 202 transports the adhesive from the adhesive tank 201 to the dispensing pipe 205, and then discharges it through the dispensing head at the lower end of the dispensing pipe 205 to the coating surface. When the material is conveyed through the guide scraper 304, it can be coated once. The guide scraper 304 can also guide excess adhesive to both sides of the guide scraper 304, so that the excess adhesive gathers on both sides. When it passes through the coating scraper 303, it can be coated again, which can ensure the uniformity of adhesive coating. At the same time, the arc shape at both ends of the coating scraper 303 can limit the guided and gathered adhesive, so that the adhesive is located within the arc shape at both ends of the coating scraper 303. The second conveying pump 203 works to make the suction pipe 204 collect the excess adhesive into the adhesive box 201 to prevent the waste of adhesive.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A self-adhesive coating apparatus with adjustable coating thickness, characterized in that, The device includes a mounting platform (101) and a glue supply mechanism (200) and a lifting mechanism (300) mounted on the mounting platform (101). The lifting mechanism (300) includes a mounting frame (301) mounted on the mounting platform (101). A screw (308) is symmetrically and rotatably mounted on the lower end of the mounting frame (301). A lifting column (305) is threaded onto the screw (308). A support plate (307) is provided at the lower end of the lifting column (305). A coating scraper (303) is provided on the support plate (307). A guide scraper (304) is bolted to the front end of the coating scraper (303). The glue supply mechanism (200) includes a glue tank (201) mounted on the upper end of the mounting frame (301). A feed port is provided on one side of the upper surface of the glue tank (201).

2. The self-adhesive coating apparatus with adjustable coating thickness according to claim 1, characterized in that, The support plate (307) is curved downwards from the middle to both ends. The coating blade (303) has a support opening (306) that matches the shape of the support plate (307). The front part of the support plate (307) is located inside the support opening (306).

3. The self-adhesive coating apparatus with adjustable coating thickness according to claim 2, characterized in that, The support plate (307) is symmetrically provided with fixing plates on both sides, and fixing holes are provided on the fixing plates. The coating blade (303) is provided with threaded holes that are compatible with the fixing holes. The fixing plates and the coating blade (303) are connected by bolts.

4. The self-adhesive coating apparatus with adjustable coating thickness according to claim 3, characterized in that, The coating blade (303) has two sides that are curved forward, and the guide blade (304) has a middle section that is curved forward. The guide blade (304) is inclined backward from the middle to both ends, and the two ends of the guide blade (304) are located within the arc of the two ends of the coating blade (303).

5. The self-adhesive coating apparatus with adjustable coating thickness according to claim 4, characterized in that, The mounting bracket (301) has a gear rotatably mounted on its upper end, which is connected to the shaft of the screw (308). The gears mesh with each other. The mounting bracket (301) has a motor (302) on its upper end, and the main shaft of the motor (302) is connected to the shaft of the gear located on the left side.

6. The self-adhesive coating apparatus with adjustable coating thickness according to claim 5, characterized in that, The lower end of the adhesive tank (201) is provided with an adhesive outlet pipe (205), and adhesive outlet heads are provided at equal intervals at the lower end of the adhesive outlet pipe (205). The front end of the adhesive tank (201) is provided with a first conveying pump (202), and the outlet of the first conveying pump (202) is provided with a pipe connected to the adhesive outlet pipe (205). The upper end of the adhesive tank (201) is provided with a second conveying pump (203), and the inlet of the second conveying pump (203) is provided with a suction pipe. The end of the suction pipe is provided with two suction pipes (204), and the end of the suction pipes (204) is located within the arc at both ends of the coating blade (303). The inlet of the first conveying pump (202) and the outlet of the second conveying pump (203) are both provided with pipes connected to the adhesive tank (201).

Images