An anti-sticking layer coating device for adhesive tape paper production

Abstract

This invention relates to the field of adhesive tape production technology, specifically to an anti-stick coating device for adhesive tape production. The device includes a base, on which three rods are symmetrically arranged. An anilox roller is rotatably connected between two of the three rods via a shaft. A material box is fixedly connected between the two three rods. A transmission mechanism is shared between the material box and the shaft of the anilox roller. The transmission mechanism includes two protective boxes, two drive gears, multiple abutment rods, and two lifting plates. A round rod is rotatably connected inside each of the protective boxes. The beneficial effects of this invention are: the transmission mechanism can loosen gel and impurities stuck inside the cells, and simultaneously puncture air bubbles trapped in the cells, preventing air bubbles from crowding the cell space and hindering the filling of the anti-stick coating; the reciprocating motion of the lifting plates agitates the coating inside the material box, creating a surge that can flush out the loosened gel and impurities from the cells, improving the dotted coating defects caused by anilox roller mesh blockage.

Description

Technical Field

[0001] This invention relates to the field of adhesive tape production technology, specifically to an anti-stick coating device for adhesive tape production. Background Technology

[0002] The anti-stick coating device for adhesive tape production is a specialized processing equipment in the tape production line. It is mainly used to coat the back of the tape substrate with an anti-stick coating to prepare the tape substrate with an anti-stick layer. After the tape substrate is continuously fed out by the unwinding mechanism, it is transported to the coating station. The device's feed tank stores liquid anti-stick coating, which is transported to the feed trough through the conveying pipeline. The coating roller is immersed in the feed trough to pick up the anti-stick coating and transfers the coating onto the back of the traveling tape substrate. After coating, the substrate continues to be transported backward and passes through a drying oven to allow the solvent of the anti-stick coating to evaporate and cross-link to cure. After cooling and winding, a semi-finished substrate is obtained. The semi-finished substrate is then transferred to the adhesive coating station to complete the front pressure-sensitive adhesive coating. After slitting, the finished tape is obtained. This type of device is widely used in the industrial mass production of BOPP sealing tape. Relying on the roll-to-roll continuous operation mode, it completes the anti-stick coating operation of large batches of tape substrates.

[0003] In existing adhesive tape production anti-stick coating devices, the anilox roller actively rotates to contact the coating inside the hopper. However, the anilox roller can only contact the coating at the top of the hopper. If the coating in the middle and bottom of the hopper is left to stand for a long time, component sedimentation is likely to occur, resulting in uneven coating concentration distribution. The cells of anilox rollers are easily clogged by gel and tiny impurities. Relying solely on a fixed scraper can only remove the material on the surface of the roller, making it difficult to clean the debris trapped deep within the cells, which can easily lead to dotted coating defects. Tiny air bubbles in the coating can easily adhere to the mesh of the coating roller, causing pinhole defects. Local stagnation on the surface of the coating tank can also cause coating skin to form. Skin debris mixed into the coating further aggravates poor coating, making it difficult to ensure the stability of the anti-stick coating quality under high-speed production conditions. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides an anti-stick coating device for adhesive tape production.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an anti-adhesive coating device for adhesive tape production, including a base, on which a first rod, a second rod and a third rod are fixedly connected symmetrically, a roller is rotatably connected between the two first rods through a shaft, two second rollers are rotatably connected between the two second rods through two shafts, an anilox roller is rotatably connected between the two third rods through a shaft, and a material box is fixedly connected between the two third rods; The material box and the anilox roller shaft are jointly provided with a transmission mechanism. The transmission mechanism includes two protective boxes, two driving gears, multiple abutment rods and two lifting plates. A round rod is rotatably connected inside each of the protective boxes. A transmission rod is fixedly connected to one end of each round rod. A driven gear is fixedly connected to each round rod. A brush layer is fixedly connected to the top of the lifting plate, and a symmetrically arranged transmission frame is fixedly connected to the top of the lifting plate. A symmetrically arranged rotating rod is rotatably connected to the lifting plate, and multiple arrayed dispersive blades are fixedly connected to each rotating rod. A pressure rod is fixedly connected to each rotating rod. The protective box is symmetrically fixedly connected to the top of the material box. The drive gear is symmetrically fixedly connected to the anilox roller shaft. The abutment rod is symmetrically fixedly connected to the inside of the material box. The lifting plate is slidably connected to the inside of the material box through multiple guide rods.

[0006] Specifically, the one rod is symmetrically located on one side of the top of the base, the three rods are symmetrically located on the other side of the top of the base, the two rods are symmetrically located on the top of the base corresponding to the middle position of the one rod and the three rods, the material box is located between the three rods corresponding to the position of the anilox roller, the anilox roller is movably abutting against the top wall of the material box, and a feed pipe is fixedly connected to one end of the material box.

[0007] Specifically, a mounting plate is fixedly connected to one of the three rods, a motor is fixedly mounted on the top of the mounting plate, and a speed reducer is fixedly mounted on the top of the mounting plate at the position corresponding to the output end of the motor.

[0008] Specifically, the motor output end is fixedly connected to the reducer input end, and the reducer output end is fixedly connected to one end of the shaft of the anilox roller.

[0009] Specifically, each of the driving gears is meshed with a corresponding driven gear, each of the transmission frames slides through the top wall of the material box, and one end of each transmission rod slides through the top of the corresponding transmission frame.

[0010] Specifically, one end of each abutment rod slides through the corresponding pressure rod.

[0011] The beneficial effects of this invention are: This device is equipped with a transmission mechanism, and the power of the entire mechanism is taken from the rotational power of the anilox roller itself, eliminating the need for an additional drive source and simplifying the overall structure. The lifting plate moves back and forth inside the material box. The brush layer on the lifting plate can periodically brush the cells of the anilox roller, loosening the gel and impurities stuck inside the cells. At the same time, it punctures the air bubbles trapped in the cells, preventing the air bubbles from crowding the cell space and hindering the filling of the anti-stick coating. The reciprocating motion of the lifting plate agitates the coating inside the material box, creating a surge that can flush out the loosened gel and impurities from the cells, improving the dotted coating defects caused by the blockage of the anilox roller mesh. During the lifting process of the lifting plate, the pressure rod and the abutment rod work together to drive the rotating rod to rotate, which in turn drives the dispersing blade to fully agitate the anti-stick coating in the tank, suppressing the sedimentation of coating components, improving the uniformity of coating concentration in all parts of the tank, reducing the fluctuation of coating thickness caused by differences in coating concentration, and reducing the generation of coating defects such as pinholes and missed coatings. At the same time, it can suppress local stagnation on the liquid surface of the tank, reduce the formation of dry and hard skin on the liquid surface after the coating solvent evaporates, and prevent skin debris from mixing into the coating and causing new coating defects. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a front view provided for the present invention; Figure 2 The feed pipe position structure diagram provided by the present invention; Figure 3 This is a cross-sectional view of the protective box provided by the present invention; Figure 4 Provided by the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a cross-sectional view of the material box provided by the present invention; Figure 6 Provided by the present invention Figure 5 Enlarged structural diagram at point B in the middle.

[0014] In the diagram: 1. Base; 2. Rod 1; 3. Rod 2; 4. Rod 3; 5. Roller 1; 6. Roller 2; 7. Anilox Roller; 8. Material Box; 9. Transmission Mechanism; 10. Protective Box; 11. Drive Gear; 12. Abutment Rod; 13. Lifting Plate; 14. Round Rod; 15. Transmission Rod; 16. Driven Gear; 17. Brush Layer; 18. Transmission Frame; 19. Rotating Rod; 20. Dispersing Leaf; 21. Pressure Rod; 22. Motor; 23. Reducer. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0016] Please see Figures 1 to 6 The present invention provides the following technical solutions: Example 1: A non-stick coating device for adhesive tape production includes a base 1. A first rod 2, a second rod 3, and a third rod 4 are symmetrically connected to the base 1. A roller 5 is rotatably connected between the two first rods 2 via shafts. Two second rollers 6 are rotatably connected between the two second rods 3 via two shafts. An anilox roller 7 is rotatably connected between the two third rods 4 via shafts. A material box 8 is fixedly connected between the two third rods 4. The first rods 2 are symmetrically located on one side of the top of the base 1, and the third rods 4 are symmetrically located on the other side of the top of the base 1. The second rods 3 are symmetrically located... At the top of the base 1, corresponding to the position between the first rod 2 and the third rod 4, the material box 8 is located between the third rod 4 at the position corresponding to the anilox roller 7. The anilox roller 7 is movably abutted against the top wall of the material box 8. A feed pipe is fixedly connected to one end of the material box 8. A mounting plate is fixedly connected to one of the third rods 4. A motor 22 is fixedly installed at the top of the mounting plate. A reducer 23 is fixedly installed at the top of the mounting plate corresponding to the output end of the motor 22. The output end of the motor 22 is fixedly connected to the input end of the reducer 23. The output end of the reducer 23 is fixedly connected to one end of the shaft of the anilox roller 7. In use, the external feeding roller feeds the material, the tape substrate overlaps on the first roller 5, and then passes through two second rollers 6 for guiding and conveying. The substrate is conveyed to the position of the anilox roller 7. The motor 22 is started by the external controller. The speed of the motor 22 is reduced by the reducer 23 and drives the anilox roller 7 to rotate. The lower part of the anilox roller 7 is immersed in the anti-stick coating inside the material box 8. After picking up the coating, it is transferred to the back of the tape substrate to complete the anti-stick coating operation. Then the head end of the substrate is connected to the next processing step.

[0017] Example 2: The technical solution of this example, which differs from that of Example 1, includes: a transmission mechanism 9 is provided on both the material box 8 and the shaft of the anilox roller 7. The transmission mechanism 9 includes two protective boxes 10, two driving gears 11, multiple abutment rods 12, and two lifting plates 13. A round rod 14 is rotatably connected inside each of the protective boxes 10. A transmission rod 15 is fixedly connected to one end of each round rod 14. A driven gear 16 is fixedly connected to each round rod 14. A brush layer 17 is fixedly connected to the top of the lifting plate 13. A symmetrically arranged transmission frame 18 is fixedly connected to the top of the lifting plate 13. A symmetrically arranged rotating rod 19 is rotatably connected to the lifting plate 13. Multiple arrayed dispersion leaves 20 are fixedly connected to each rotating rod 19. A pressure rod 21 is fixedly connected to each rotating rod 19. The protective boxes 10 are symmetrically fixedly connected to the top of the material box 8. The driving gears 11 are symmetrically fixedly connected to the shaft of the anilox roller 7. The abutment rods 12 are symmetrically fixedly connected inside the material box 8. The lifting plate 13 is slidably connected inside the material box 8 through multiple guide rods. All drive gears 11 are meshed with corresponding driven gears 16, all transmission frames 18 slide through the top wall of the material box 8, one end of each transmission rod 15 slides through the top of the corresponding transmission frame 18, and one end of each abutment rod 12 slides through the corresponding pressure rod 21. During operation, the motor 22 drives the anilox roller 7 to rotate via the reducer 23. The shaft of the anilox roller 7 drives two drive gears 11 to rotate synchronously. The rotation of the drive gears 11 drives the driven gear 16 and the round rod 14 to rotate. The round rod 14 drives the transmission rod 15 to oscillate in a circular motion. The transmission rod 15 cooperates with the transmission frame 18 to push the transmission frame 18 to move. The reciprocating motion of the transmission frame 18 drives the lifting plate 13 to move up and down along the guide rod inside the material box 8. During the lifting process, the brush layer 17 periodically contacts the roller surface of the anilox roller 7 inside the material box 8, brushing and cleaning the mesh of the anilox roller 7, loosening the gel and impurities stuck inside the mesh, and puncturing the air bubbles trapped inside the mesh, avoiding... To prevent air bubbles from occupying the mesh space and hindering the filling of the mesh, the reciprocating motion of the lifting plate 13 also disturbs the anti-stick coating in the material box 8, causing it to surge and flush out loose gel impurities in the mesh. While the lifting plate 13 is moving up and down, the pressure rod 21 slides relative to the abutment rod 12. The abutment rod 12 drives the pressure rod 21 to rotate, which in turn drives the rotating rod 19 and the dispersing blade 20 to rotate together. The rotation of the dispersing blade 20 fully agitates the anti-stick coating inside the material box 8, causing the coating to surge and flow as a whole, inhibiting the sedimentation of the coating components, and reducing the formation of a dry and hard skin on the liquid surface after the coating solvent evaporates. The anilox roller 7 continuously picks up the coating with uniform concentration after being fully agitated, completing the anti-stick layer transfer coating operation on the back of the tape substrate.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-stick coating device for adhesive tape production, comprising a base (1), wherein a symmetrically arranged rod (2), a second rod (3) and a third rod (4) are fixedly connected on the base (1), a roller (5) is rotatably connected between the two first rods (2) via a shaft, two second rollers (6) are rotatably connected between the two second rods (3) via two shafts, an anilox roller (7) is rotatably connected between the two third rods (4) via a shaft, and a material box (8) is fixedly connected between the two third rods (4); Its features are: The material box (8) and the shaft of the anilox roller (7) are provided with a transmission mechanism (9). The transmission mechanism (9) includes two protective boxes (10), two driving gears (11), multiple abutment rods (12) and two lifting plates (13). The protective boxes (10) are rotatably connected to round rods (14). One end of each round rod (14) is fixedly connected to a transmission rod (15). Each round rod (14) is fixedly connected to a driven gear (16). A brush layer (17) is fixedly connected to the top of the lifting plate (13). A symmetrically arranged transmission frame (18) is fixedly connected to the top of the lifting plate (13). A symmetrically arranged rotating rod (19) is rotatably connected to the lifting plate (13). Multiple arrayed dispersed leaves (20) are fixedly connected to each rotating rod (19). A pressure rod (21) is fixedly connected to each rotating rod (19). The protective box (10) is symmetrically fixedly connected to the top of the material box (8). The drive gear (11) is symmetrically fixedly connected to the shaft of the anilox roller (7). The abutment rod (12) is symmetrically fixedly connected inside the material box (8). The lifting plate (13) is slidably connected inside the material box (8) through multiple guide rods.

2. The anti-stick coating device for adhesive tape production according to claim 1, characterized in that: The first rod (2) is symmetrically located on one side of the top of the base (1), the third rod (4) is symmetrically located on the other side of the top of the base (1), the second rod (3) is symmetrically located on the top of the base (1) at the position between the first rod (2) and the third rod (4), the material box (8) is located between the third rod (4) at the position corresponding to the anilox roller (7), the anilox roller (7) is in movable contact with the top wall of the material box (8), and a feed pipe is fixedly connected to one end of the material box (8).

3. The anti-stick coating device for adhesive tape production according to claim 1, characterized in that: One of the three rods (4) is fixedly connected to a mounting plate, a motor (22) is fixedly mounted on the top of the mounting plate, and a reducer (23) is fixedly mounted on the top of the mounting plate at the position corresponding to the output end of the motor (22).

4. The anti-stick coating device for adhesive tape production according to claim 3, characterized in that: The output end of the motor (22) is fixedly connected to the input end of the reducer (23), and the output end of the reducer (23) is fixedly connected to one end of the shaft of the anilox roller (7).

5. The anti-stick coating device for adhesive tape production according to claim 1, characterized in that: The driving gears (11) are all meshed with the corresponding driven gears (16), the transmission frames (18) slide through the top wall of the material box (8), and one end of the transmission rods (15) slides through the top of the corresponding transmission frames (18).

6. The anti-stick coating device for adhesive tape production according to claim 1, characterized in that: One end of each abutment rod (12) slides through the corresponding pressure rod (21).

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