Automatic adjustable coating device

Abstract

The utility model discloses an automatic adjustable coating device. The automatic adjustable coating device is characterized by further comprising a laser thickness gauge which is arranged behind a coating mechanism, electrically connected with a control cabinet and used for detecting the coating thickness, through the arrangement of the laser thickness gauge, the coating thickness of the coating mechanism can be detected on line, detected data are transmitted to the control cabinet, if the coating thickness is too large or too small, the control cabinet can control the driver, the driver moves up and down, and the glue outlet amount of the coating head is adjusted; the driver corresponding to the coating head is just opposite to the driver corresponding to the scraper blade during movement, the driver corresponding to the coating head pushes the coating head downwards, the driver corresponding to the scraper blade is upwards, and the coating thickness is thick; on the contrary, the driver corresponding to the coating head pushes the coating head upwards, the driver corresponding to the scraping plate faces downwards, the coating thickness is thin, automatic adjustment of the coating thickness is achieved, the product percent of pass is increased, and the production speed is increased.

Description

Technical Field

[0001] This utility model relates to the field of whiteboard paper processing technology, specifically to an automated adjustable coating device. Background Technology

[0002] The coating process of a coating machine involves unwinding, mixing the adhesive, conveying the adhesive, coating, matte curing, and rewinding. After mixing in the mixing tank, a large number of air bubbles are generated in the adhesive, resulting in numerous air bubbles in the adhesive dispensed during coating, affecting the coating effect. Furthermore, the coating thickness needs to be adjusted according to the adhesive viscosity by adjusting the dispensing amount from the coating head. If the adhesive is changed or its viscosity changes during production, the dispensing amount from the coating head also needs to be adjusted. However, in existing coating machine production, the dispensing amount is usually adjusted only during startup and commissioning, and then generally not adjusted midway through production. This leads to delamination and air bubble formation in the middle of the roll material. By the time this phenomenon is discovered, a large quantity of roll material has already been produced, resulting in a large number of defective rolls. Additionally, the time spent inspecting and replacing the roll and adjusting the dispensing amount from the coating head is lengthy, leading to slow production efficiency. Therefore, an automated adjustable coating device is proposed. Utility Model Content

[0003] The main purpose of this utility model is to provide a solution that can effectively address the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automated adjustable coating device, comprising a frame, a coating mechanism and a calendering and curing mechanism mounted on the frame, a glue supply mechanism connected to the coating mechanism, an unwinding frame and a rewinding frame respectively mounted at both ends of the frame, and a control cabinet electrically connected to the coating mechanism, the calendering and curing mechanism, the glue supply mechanism, the unwinding frame, and the rewinding frame. The device is characterized by further including a laser thickness gauge mounted after the coating mechanism and electrically connected to the control cabinet for detecting the coating thickness. The coating mechanism includes a coating head movably connected to the frame and capable of automatically adjusting the coating thickness, a scraper movably connected to the frame and capable of adjusting according to the glue output, a crossbeam mounted on the top of the frame, and several connecting rods and drivers mounted on the crossbeam and respectively connected to the coating head and the scraper.

[0005] Preferably, the adhesive supply mechanism includes a mixing tank, a vacuum pump connected to the mixing tank, a delivery pipe connecting the mixing tank and the coating head, and a pressure pump installed on the mixing tank and the delivery pipe.

[0006] Preferably, the coating head includes a storage tank connected to the mixing tank and a coating roller movably connected to the storage tank.

[0007] Preferably, the coating roller has short shafts on both sides.

[0008] Preferably, the storage tank is provided with movable grooves on both sides for the short shaft of the coating roller to move.

[0009] Preferably, the movable groove is provided with a spring connected to the short shaft.

[0010] Preferably, a baffle is provided on both sides of the scraper.

[0011] This invention has the following advantages: By setting up a laser thickness gauge, the coating thickness of the coating mechanism can be detected online, and the detected data can be transmitted to the control cabinet. If the coating thickness is too thick or too thin, the control cabinet can control the driver to move up and down, adjusting the amount of adhesive dispensed from the coating head. The driver corresponding to the coating head and the driver corresponding to the scraper are exactly opposite in their operation. When the driver corresponding to the coating head pushes the coating head down, the driver corresponding to the scraper moves up, and the coating thickness is thick; conversely, when the driver corresponding to the coating head pushes the coating head up, the driver corresponding to the scraper moves down, and the coating thickness is thin. This achieves automatic adjustment of the coating thickness, improves the product qualification rate, and increases the production speed.

[0012] By using a vacuum pump, the glue mixture in the mixing tank can be vacuumed to remove residual air bubbles, thereby improving the quality of the glue during application and preventing air bubbles from appearing on the finished product. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the coating mechanism structure of this utility model;

[0015] Figure 3 This is a partial enlarged view of the present invention.

[0016] Legend: 1. Frame; 2. Coating mechanism; 21. Coating head; 211. Material storage tank; 2111

[0017] 212. Movable trough; 212. Coating roller; 2121. Short shaft; 213. Spring; 22. Crossbeam; 23. Connecting rod; 24. Driver; 3. Calendering and curing mechanism; 4. Adhesive supply mechanism; 41. Mixing tank; 42. Vacuum pump; 43. Conveying pipeline; 44. Pressure pump; 5. Unwinding rack; 6. Rewinding rack; 7. Control cabinet; 8. Laser thickness gauge; 9. Scraper; 91. Baffle. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1-3As shown, an automated adjustable coating device includes a frame 1, a coating mechanism 2 and a calendering and curing mechanism 3 mounted on the frame 1, a glue supply mechanism 4 connected to the coating mechanism 2, an unwinding frame 5 and a rewinding frame 6 respectively mounted at both ends of the frame 1, and a control cabinet 7 electrically connected to the coating mechanism 2, the calendering and curing mechanism 3, the glue supply mechanism 4, the unwinding frame 5, and the rewinding frame 6. The device is characterized by further including a laser thickness gauge 8 mounted behind the coating mechanism 2 and electrically connected to the control cabinet 7 for detecting the coating thickness. The coating mechanism 2 includes a coating head 21 movably connected to the frame 1 for automatically adjusting the coating thickness, a scraper 9 movably connected to the frame 1 for adjusting the glue output, a crossbeam 22 mounted on the top of the frame 1, and several connecting rods 22 mounted on the crossbeam 22 and respectively connected to the coating head 21 and the scraper 9. 3 and driver 24; Through the setting of laser thickness gauge 8, the coating thickness of coating mechanism 2 can be detected online, and the detected data can be transmitted to control cabinet 7. If the coating thickness is too thick or too thin, the driver 24 can be controlled by control cabinet 7. The driver 24 moves up and down to adjust the amount of glue dispensed from coating head 21. The driver 24 corresponding to coating head 21 and the driver 24 corresponding to scraper 9 are exactly opposite when they move. When the driver 24 corresponding to coating head 21 pushes coating head 21 down, the driver 24 corresponding to scraper 9 moves up, and the coating thickness is thick; conversely, when the driver 24 corresponding to coating head 21 pushes coating head 21 up, the driver 24 corresponding to scraper 9 moves down, and the coating thickness is thin. This realizes automatic adjustment of coating thickness, improves product qualification rate, and increases production speed.

[0020] In one embodiment, the glue supply mechanism 4 includes a mixing tank 41, a vacuum pump 42 connected to the mixing tank 41, a conveying pipe 43 connecting the mixing tank 41 and the coating head 21, and a pressure pump 44 installed on the mixing tank 41 and the conveying pipe 43. By installing the vacuum pump 42, the glue that has been mixed in the mixing tank 41 can be vacuumed to remove residual air bubbles in the glue, thereby increasing the quality of glue dispensing during coating and preventing air bubbles from appearing in the finished product.

[0021] In one embodiment, the coating head 21 includes a storage tank 211 connected to the mixing tank 41 and a coating roller 212 movably connected to the storage tank 211; and short shafts 2121 are provided on both sides of the coating roller 212; movable grooves 2111 are provided on both sides of the storage tank 211 for the short shafts 2121 on the coating roller 212 to move; springs 213 connected to the short shafts 2121 are provided in the movable grooves 2111; when the driver 24 corresponding to the coating head 21 pushes the coating head 21 downward, until the coating roller 212 contacts the roll material. When the coating mechanism 2 outputs the least amount of material, the coating thickness is also the minimum. If the coating thickness needs to be increased, the driver 24 needs to push the coating head 21 downwards, so that the coating roller 212 on the coating head 21 squeezes the roll material, causing the short shaft 2121 on the coating roller 212 to squeeze the spring 213, so that the coating roller 212 moves upwards, resulting in an increase in the gap between the coating roller 212 and the storage tank 211, thereby increasing the output. If the coating thickness is too large, the driver 24 corresponding to the coating head 21 can be driven to drive the coating head 21 upwards.

[0022] In one embodiment, a baffle 91 is provided on both sides of the scraper 9; the baffle 91 can prevent excess glue from falling from both sides of the roll material after the scraper 9 scrapes the glue and scattering onto the frame 1, affecting the appearance of the frame 1 and the ground.

[0023] When using this utility model, the roll material needs to be placed on the unwinding rack 5 in advance, and the roll material needs to be manually wound and fixed on the winding rack 6. Then, the glue in the mixing tank 41 is stirred evenly, and the vacuum pump 42 is used to defoam the glue. The defoamed glue is then transported to the storage tank 211 on the coating head 21 through the conveying pipe 43 by the pressure pump 44. The vertical positions of the coating head 21 and the scraper 9 corresponding to the two drivers 24 are adjusted so that the coating thickness meets the requirements. Then, the start button on the control box 7 is activated so that the roll material passes through the coating mechanism 2 for glue application and the calendering and curing mechanism 3 for calendering and curing until the winding rack 6 winds up the finished product.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automated adjustable coating apparatus, comprising a frame (1), a coating mechanism (2) and a calendering and curing mechanism (3) mounted on the frame (1), a glue supply mechanism (4) connected to the coating mechanism (2), an unwinding frame (5) and a rewinding frame (6) respectively mounted at both ends of the frame (1), and a control cabinet (7) electrically connected to the coating mechanism (2), the calendering and curing mechanism (3), the glue supply mechanism (4), the unwinding frame (5), and the rewinding frame (6), characterized in that: It also includes a laser thickness gauge (8) installed after the coating mechanism (2) and electrically connected to the control cabinet (7) for detecting the coating thickness. The coating mechanism (2) includes a coating head (21) movably connected to the frame (1) and automatically adjustable coating thickness, a scraper (9) movably connected to the frame (1) and adjustable according to the amount of adhesive dispensed, a crossbeam (22) installed on the top of the frame (1), and several connecting rods (23) and drivers (24) installed on the crossbeam (22) and respectively connected to the coating head (21) and the scraper (9).

2. The automated adjustable coating device according to claim 1, characterized in that: The glue supply mechanism (4) includes a mixing tank (41), a vacuum pump (42) connected to the mixing tank (41), a conveying pipe (43) connecting the mixing tank (41) and the coating head (21), and a pressure pump (44) installed on the mixing tank (41) and the conveying pipe (43).

3. The automated adjustable coating device according to claim 1, characterized in that: The coating head (21) includes a storage tank (211) connected to the mixing tank (41) and a coating roller (212) movably connected to the storage tank (211).

4. The automated adjustable coating device according to claim 3, characterized in that: The coating roller (212) has short shafts (2121) on both sides.

5. An automated adjustable coating device according to claim 3, characterized in that: The storage tank (211) is provided with movable grooves (2111) on both sides for the short shaft (2121) on the coating roller (212) to move.

6. The automated adjustable coating device according to claim 5, characterized in that: The movable groove (2111) is provided with a spring (213) connected to the short shaft (2121).

7. The automated adjustable coating device according to claim 1, characterized in that: The scraper (9) is provided with a baffle (91) on both sides.

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