A coating machine gluing device

Abstract

The utility model relates to the technical field of coating machine gluing, disclose a kind of coating machine gluing device, including support frame, the top of support frame is fixedly connected with take-off roll, the outer wall of support frame is fixedly connected with support, the outer wall of support is provided with synchronous rotating device, the bottom end inside rotation of support is connected with lower guide roller, the top inside rotation of support is connected with upper guide roller, the top inside of support is provided with self-adapting thickness component, the bottom inside of support is provided with lifting assembly, the self-adapting thickness component includes frame, in the utility model, by setting sleeve, spring, cross bar, when substrate thickness fluctuation, upper guide roller can be through the flexible sliding of cross bar and drive vertical block in frame, by the extrusion or release action of vertical block to spring, effectively avoid the problem that guide roller and substrate are not closely adhered due to substrate thickness uneven.

Description

Technical Field

[0001] This utility model relates to the field of coating machine adhesive technology, and in particular to a coating machine adhesive application device. Background Technology

[0002] Coating machines are mainly used for surface coating processes of films, paper, etc. This machine coats a roll of substrate with a layer of adhesive, paint or ink with specific functions, and after drying, cuts it into sheets or rewinds it. It adopts a special multi-functional coating head, which can realize various forms of surface coating. The unwinding and rewinding of the coating machine are equipped with a full-speed automatic film splicing mechanism, and the tension is automatically controlled by a PLC program closed loop.

[0003] The working principle of an automatic coating machine: Automatic coating machines used for screen printing plate making operate on the same principle, but their performance varies depending on the model and manufacturer. Screen coating machines are equipped with a device on a vertical frame to clamp the screen frame. Before and after the screen area are horizontal coating mechanisms, which consist of a coating tank and mechanical or pneumatic components that control the angle and pressure of the coating tank.

[0004] Although the above-mentioned technologies have achieved the goal of coating a roll of substrate with a specific function of adhesive or coating, in actual use, due to the thickness difference of the roll of substrate, the distance between the guide rollers needs to be adjusted accordingly when applying adhesive to substrates of different thicknesses, which is inconvenient to use. Therefore, a coating machine adhesive device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a coating machine gluing device, which aims to solve the problem in the prior art that the distance between guide rollers needs to be adjusted accordingly when coating substrates of different thicknesses due to the thickness difference of the rolled substrate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a coating machine gluing device, including a support frame, a take-up and release roller fixedly connected to the top of the support frame, a bracket fixedly connected to the outer wall of the support frame, a synchronous rotation device provided on the outer wall of the bracket, a lower guide roller rotatably connected inside the bottom end of the bracket, an upper guide roller rotatably connected inside the top end of the bracket, an adaptive thickness component provided inside the top of the bracket, and a lifting component provided inside the bottom of the bracket; The adaptive thickness component includes a frame, with a vertical block slidably connected inside the frame, a sleeve fixedly connected inside the vertical block, a crossbar rotatably connected inside the sleeve, and the top of the vertical block elastically connected inside the frame by a spring.

[0007] As a further description of the above technical solution: One end of the spring is fixedly connected to the inside of the frame, and the other end of the spring is fixedly connected to the top of the stand.

[0008] As a further description of the above technical solution: The frame is provided in two sets, and the second set of frames has one less set of springs inside.

[0009] As a further description of the above technical solution: The outer wall of the crossbar is fixedly connected to the outer wall of the upper guide roller. There are two sets of crossbars, and the two sets of crossbars are distributed in a mirror image along the central axis of the upper guide roller.

[0010] As a further description of the above technical solution: The lifting assembly includes a threaded rod, the outer wall of which is fixedly connected to a first L-shaped block via a threaded sleeve, the outer wall of which is fixedly connected to a glue storage box, the bracket has a groove inside, the bracket has a sliding groove inside, a sliding strip is slidably connected inside the sliding groove, the outer wall of which is fixedly connected to a second L-shaped block, and a guide roller is slidably connected inside the second L-shaped block.

[0011] As a further description of the above technical solution: The rear wall of the sliding strip is fixedly connected to the outer wall of the glue storage box.

[0012] As a further description of the above technical solution: The outer wall of the guide roller is fixedly connected to the inside of the bracket.

[0013] As a further description of the above technical solution: The outer wall of the threaded rod is rotatably connected to the inside of the bracket.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by setting a sleeve, spring and crossbar, when the thickness of the substrate fluctuates, the upper guide roller can drive the vertical block to slide flexibly within the frame through the crossbar. With the help of the vertical block's squeezing or releasing action on the spring, the problem of the guide roller not sticking tightly to the substrate due to uneven substrate thickness is effectively avoided.

[0015] 2. In this utility model, by setting a threaded rod, a groove, and a No. 1 L-shaped block, rotating the threaded rod can drive the No. 1 L-shaped block to move smoothly along the groove, thereby driving the glue storage box to rise and fall synchronously. This not only ensures precise glue control and accuracy but also makes full use of the glue at the bottom of the box, reducing waste and improving utilization. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an adhesive application device for a coating machine proposed in this utility model; Figure 2This is a schematic diagram of the structure of a bracket for a coating machine gluing device proposed in this utility model; Figure 3 This is a schematic diagram of the structure of an adaptive thickness component of a coating machine gluing device proposed in this utility model; Figure 4 This is a schematic diagram of the lifting assembly of a coating machine gluing device proposed in this utility model.

[0017] Legend: 1. Support frame; 2. Take-up and take-off rollers; 3. Synchronous rotation device; 4. Bracket; 5. Adaptive thickness assembly; 51. Sleeve; 52. Spring; 53. Crossbar; 54. Frame; 55. Vertical block; 6. Lifting assembly; 61. Threaded rod; 62. Groove; 63. No. 1 L-shaped block; 64. Slide groove; 65. Sliding bar; 66. Guide roller; 67. No. 2 L-shaped block; 7. Lower guide roller; 8. Upper guide roller; 9. Glue storage box. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-3 This utility model provides an embodiment of a coating machine gluing device, including a support frame 1. The top of the support frame 1 is fixedly connected to a take-up and take-down roller 2, which is driven by a motor and has anti-slip texture on its surface, and can realize the automatic unwinding and rewinding operation of the substrate. The outer wall of the support frame 1 is fixedly connected to a bracket 4. The outer wall of the bracket 4 is provided with a synchronous rotation device 3, which includes a gear set and a transmission belt, and can synchronously transmit power to the lower guide roller 7 and the upper guide roller 8 to ensure that the rotation speed of the two is consistent to avoid stretching or wrinkling during substrate conveying. The bottom end of the bracket 4 is rotatably connected to a lower guide roller 7, which has a mirror-polished surface, contacts the lower surface of the substrate, and plays a major supporting role. The top end of the bracket 4 is rotatably connected to an upper guide roller 8, which is distributed vertically and vertically with the lower guide roller 7, has a wear-resistant rubber layer on its surface, and can flexibly adjust its height under the action of an adaptive thickness component 5. The top of the bracket 4 is provided with an adaptive thickness component 5, and the bottom of the bracket 4 is provided with a lifting component 6. The adaptive thickness component 5 includes a frame 54 with a rectangular cavity structure. Inside the frame 54, there is a block structure with sliders on both sides that match the slide rails of the frame 54 and can slide freely in the vertical direction. Inside the block 54, there is a fixedly nested sleeve 51 with a vertical block 55. Inside the vertical block 55, there is a hollow cylindrical structure with built-in bearings that can reduce the frictional resistance when the crossbar 53 rotates. The crossbar 53 is rotatably connected inside the sleeve 51. The top of the vertical block 55 is elastically connected to the inside of the frame 54 by a spring 52. The spring 52 is a high-strength compression spring with a stable elastic coefficient and can generate corresponding elastic force feedback according to the displacement of the vertical block 55. One end of the spring 52 is fixedly connected to the inside of the frame 54, and the other end of the spring 52 is fixedly connected to the top of the vertical block 55. The substrate to be coated is unwound and wound by the take-up and unwound rollers 2. The substrate is transported under the guidance of the lower guide roller 7 and the upper guide roller 8. The adaptive thickness component 5 can automatically adjust according to the thickness of the substrate: when the thickness of the substrate changes, the upper guide roller 8 drives the vertical block 55 to slide within the frame 54 through the crossbar 53. The vertical block 55 squeezes or releases the spring 52, and the elastic force of the spring 52 is used to keep the upper guide roller 8 in contact with the surface of the substrate.

[0020] Reference Figures 2-4The frame 54 has two sets, which are respectively installed at both ends of the upper guide roller 8 in a symmetrical distribution to ensure force balance. The second set of frames 54 has one less set of springs 52 inside. The asymmetrical design can adapt to the thickness difference between the edge and middle areas of the substrate. The outer wall of the crossbar 53 is fixedly connected to the outer wall of the upper guide roller 8. There are two sets of crossbars 53, which are mirror-distributed along the central axis of the upper guide roller 8. This symmetrical layout can ensure that the upper guide roller 8 is evenly stressed and avoid tilting due to unilateral stress. The lifting component 6 includes a threaded rod 61 with a trapezoidal thread structure and a self-locking function. It is the power input component of the lifting component 6. The outer wall of the threaded rod 61 is fixedly connected to a No. 1 L-shaped block 63 through a threaded sleeve. The threaded sleeve and the No. 1 L-shaped block 63 are rigidly welded. When the threaded rod 61 rotates, the threaded sleeve can drive the No. 1 L-shaped block 63 to move linearly along the axial direction. The outer wall of the No. 1 L-shaped block 63 is fixedly connected to a glue storage box 9. The bracket 4 has an opening inside. There is a long, narrow groove 62 whose cross-sectional dimensions match those of the first L-shaped block 63. The bracket 4 has a long, narrow slider inside, which is bolted to the rear wall of the glue storage box 9 via a sliding groove 64. A sliding strip 65 is slidably connected inside the sliding groove 64. A right-angle connector is fixed to the outer wall of the glue storage box 9; one end is welded to the glue storage box 9, and the other end has a second L-shaped block 67 with a through hole matching the guide roller 66. The guide roller 66 and the sliding strip are slidably connected inside the second L-shaped block 67. The rear wall of 65 is fixedly connected to the outer wall of the glue storage box 9, the outer wall of the guide roller 66 is fixedly connected to the inside of the bracket 4, and the outer wall of the threaded rod 61 is rotatably connected to the inside of the bracket 4. The height of the glue storage box 9 can be adjusted by the lifting assembly 6: rotating the threaded rod 61 causes the first L-shaped block 63 to move up and down along the groove 62, and the glue storage box 9 moves synchronously. At this time, the sliding bar 65 slides along the slide groove 64 and the second L-shaped block 67 slides along the guide roller 66, which together ensures that the glue storage box 9 rises and falls smoothly.

[0021] Working principle: During use, the substrate to be coated is unwound and wound by the take-up and take-up rollers 2, and the substrate is conveyed under the guidance of the lower guide roller 7 and the upper guide roller 8. The adaptive thickness component 5 can automatically adjust according to the thickness of the substrate: when the thickness of the substrate changes, the upper guide roller 8 drives the vertical block 55 to slide within the frame 54 through the crossbar 53. The vertical block 55 squeezes or releases the spring 52, and the elastic force of the spring 52 keeps the upper guide roller 8 in contact with the surface of the substrate. The height of the glue storage box 9 can be adjusted by the lifting component 6: rotating the threaded rod 61 causes the first L-shaped block 63 to move up and down along the groove 62, and the glue storage box 9 moves synchronously. At this time, the sliding bar 65 slides along the slide groove 64 and the second L-shaped block 67 slides along the guide roller 66, which together ensures that the glue storage box 9 rises and falls smoothly.

[0022] 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 coating machine adhesive application device, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a take-up roller (2), the outer wall of the support frame (1) is fixedly connected to a bracket (4), the outer wall of the bracket (4) is provided with a synchronous rotation device (3), the bottom end of the bracket (4) is rotatably connected to a lower guide roller (7), the top end of the bracket (4) is rotatably connected to an upper guide roller (8), the top of the bracket (4) is provided with an adaptive thickness component (5), and the bottom of the bracket (4) is provided with a lifting component (6). The adaptive thickness component (5) includes a frame (54), a block (55) is slidably connected inside the frame (54), a sleeve (51) is fixedly connected inside the block (55), a crossbar (53) is rotatably connected inside the sleeve (51), and the top of the block (55) is elastically connected inside the frame (54) by a spring (52).

2. A gluing device for a coater according to claim 1, characterized in that: One end of the spring (52) is fixedly connected to the inside of the frame (54), and the other end of the spring (52) is fixedly connected to the top of the block (55).

3. The gluing device for a coater according to claim 1, characterized in that: The frame (54) is provided in two sets, and the second set of frames (54) has one less set of springs (52) inside.

4. The gluing device for a coater according to claim 1, wherein: The outer wall of the crossbar (53) is fixedly connected to the outer wall of the upper guide roller (8). There are two sets of crossbars (53), and the two sets of crossbars (53) are distributed in a mirror image along the central axis of the upper guide roller (8).

5. The gluing device for a coater according to claim 1, wherein: The lifting assembly (6) includes a threaded rod (61), the outer wall of which is fixedly connected to an L-shaped block (63) by a threaded sleeve, the outer wall of which is fixedly connected to a glue storage box (9), the bracket (4) has a groove (62) inside, the bracket (4) has a sliding groove (64) inside, the sliding groove (64) has a sliding strip (65) inside, the outer wall of which is fixedly connected to a second L-shaped block (67), and the inner wall of which is slidably connected to a guide roller (66).

6. A gluing device for a coater according to claim 5, characterized in that: The rear wall of the sliding strip (65) is fixedly connected to the outer wall of the glue storage box (9).

7. A gluing device for a coater according to claim 5, characterized in that: The outer wall of the guide roller (66) is fixedly connected to the inside of the bracket (4).

8. The gluing device of claim 5, wherein: The outer wall of the threaded rod (61) is rotatably connected to the inside of the bracket (4).

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