Coating device for packaging paper manufacturing

Abstract

This utility model discloses a coating device for packaging paper manufacturing, including a support frame. A coating mechanism is mounted on the support frame. The coating mechanism includes a mounting frame, a coating roller, a material box, a guide roller, and a pressure roller. The mounting frame is fixed to the top surface of the support frame. The coating roller rotates on the inner wall of the mounting frame. The material box is placed below the coating roller. Multiple sets of guide rollers are mounted on the support frame. Adjustment mechanisms are provided at both ends of the pressure roller and connected to the mounting frame. The adjustment mechanism includes a sliding block, a screw, a transmission sleeve, a throttle, a positioning sleeve, a limit ring, a sliding hole, a push spring, a positioning block, a positioning groove, and a locking mechanism. The adjustment mechanism adopts a combination of screw drive and sliding block. The precise adjustment of the pressure roller position is achieved by driving with the throttle. The cooperation structure of the positioning sleeve and the limit ring enables the adjustment process to have a self-locking function, which can achieve micron-level precision control and adapt to the vibration environment in high-speed production, significantly improving the stability of the coating thickness.

Description

Technical Field

[0001] This utility model relates to the technical field, and more specifically, to a coating apparatus for manufacturing packaging paper. Background Technology

[0002] In the process of packaging paper manufacturing, different products have significantly different requirements for coating thickness. The distance between the pressure roller and the coating roller needs to be precisely adjusted according to the paper thickness. In the existing technology, the distance adjustment of the coating device often relies on manual mechanical adjustment, which is not only cumbersome to operate, but also difficult to achieve high-precision control. When producing high-precision packaging materials, this rough adjustment method is prone to uneven coating, affecting the appearance quality and functional coating effect of the product.

[0003] The current coating equipment's adjustment mechanism suffers from low adjustment accuracy and slow response speed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, the present invention provides a coating device for manufacturing packaging paper to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a coating device for packaging paper manufacturing, comprising a support frame, on which a coating mechanism is mounted. The coating mechanism includes a mounting frame, a coating roller, a material box, a guide roller, and a pressure roller. The mounting frame is fixed to the top surface of the support frame, the coating roller rotates on the inner wall of the mounting frame, the material box is placed below the coating roller, multiple sets of guide rollers are mounted on the support frame, and both ends of the pressure roller are provided with adjustment mechanisms connected to the mounting frame. The adjustment mechanism includes a sliding block, a screw, a transmission sleeve, a throttle, a positioning sleeve, and a limit switch. The system includes a ring, sliding holes, push springs, positioning blocks, positioning grooves, and a locking mechanism. The sliding blocks slide on both sides of the mounting frame and are rotatably connected to both ends of the pressure roller. The screw rotates at the top of the sliding blocks. The transmission sleeve rotates on the top surface of the mounting frame and is threadedly connected to the screw. The throttle is fixed to the top surface of the transmission sleeve. The positioning sleeve is fixed to the top surface of the mounting frame. The limiting ring is fixed to the outer wall of the transmission sleeve and is rotatably connected to the positioning sleeve. Multiple sets of sliding holes are provided on the bottom surface of the limiting ring. Push springs are connected to the inner walls of multiple sets of sliding holes. The positioning blocks are fixed to the bottom ends of multiple sets of push springs. Multiple sets of positioning grooves are provided inside the positioning sleeve.

[0008] The present invention is further configured such that sliding grooves are provided on both sides of the mounting frame, and multiple sets of sliding blocks slide in the multiple sets of sliding grooves respectively. The sliding grooves precisely guide the movement trajectory of the sliding blocks, ensuring the straightness and stability during the adjustment of the pressure roller.

[0009] The present invention is further configured such that all of the multiple sets of positioning blocks are spherical and all of the multiple sets of positioning grooves have rounded corners on the outside. The cooperation between the spherical positioning blocks and the rounded corner positioning grooves reduces frictional resistance, making the positioning action smoother and reducing wear.

[0010] The present invention is further configured such that each of the multiple sets of positioning blocks is fixedly provided with an abutment rod on its outer wall, and each of the multiple sets of abutment rods is slidably connected to the limiting ring. The abutment rod converts the radial movement of the positioning block into axial transmission, thereby enhancing the transmission efficiency of the locking force.

[0011] The present invention is further configured such that the locking mechanism includes a rotating sleeve, an inclined push block, an abutting sleeve, and an inclined abutting block. The rotating sleeve rotates on the outer wall of the transmission sleeve. Multiple sets of inclined push blocks are provided and all are fixed on the bottom surface of the rotating sleeve. The abutting sleeve slides on the outer wall of the transmission sleeve. Multiple sets of inclined abutting blocks are provided and fixed on the top surface of the abutting sleeve. The inclined surfaces of the inclined push block and the inclined abutting block cooperate to realize the conversion of rotational motion to linear motion, generating a strong locking force.

[0012] The present invention is further provided that the outer wall of the transmission sleeve is provided with guide bars, and multiple sets of guide bars are provided, all of which are slidably connected to the abutment sleeve. The guide bars ensure that the abutment sleeve can only move axially and cannot rotate, thereby improving the reliability of the locking mechanism.

[0013] The present invention is further configured such that a connecting sleeve is fixedly provided on the top surface of the rotating sleeve, a connecting groove is provided on the inner wall of the connecting sleeve, multiple sets of the connecting groove are provided and each inner wall is connected to a pressure spring, a stop block is fixedly provided at the bottom end of each set of pressure springs, and a resistance groove is provided on the outer wall of the transmission sleeve, multiple sets of the resistance groove are provided and each engages with a set of stop blocks, the cooperation between the stop block and the resistance groove provides a clear gear feel, making it easy for the operator to perceive the locking state.

[0014] The present invention is further configured such that the outer sides of the multiple sets of resistance grooves are provided with rounded corners, and the bottom ends of the multiple sets of gear blocks are all provided with arc shapes and engage with the multiple sets of resistance grooves. The arc contact surface design reduces contact stress and improves the service life and operating comfort of the mechanism.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a coating apparatus for manufacturing packaging paper, which has the following advantages:

[0017] 1. The coating device for packaging paper manufacturing achieves uniform coating of packaging paper of different thicknesses through the design of the coating roller and pressure roller of the coating mechanism. The arrangement of the material box and guide roller ensures the stability of the coating supply and effectively solves the problem of uneven coating caused by thickness variation in traditional coating devices.

[0018] 2. The adjustment mechanism adopts a combination of screw drive and sliding block. The precise adjustment of the pressure roller position is achieved by throttle drive. The matching structure of its positioning sleeve and limit ring gives the adjustment process a self-locking function, which can achieve micron-level precision control and adapt to the vibration environment in high-speed production, significantly improving the stability of coating thickness.

[0019] 3. The locking mechanism, through the mechanical linkage of the inclined push block and the inclined stop block, and in conjunction with the positioning block system driven by the push spring, can quickly achieve double locking after adjustment. This ensures the complete fixation of the transmission sleeve and provides tactile feedback through the elastic engagement of the stop block and the resistance groove. This makes the entire device both accurate in adjustment and convenient in operation and reliable in the long term, perfectly solving the technical problems of inaccurate adjustment and weak locking in traditional coating devices. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a coating device for manufacturing packaging paper according to the present invention;

[0021] Figure 2 This is a schematic diagram of the positioning sleeve in this utility model;

[0022] Figure 3 This is a cross-sectional view of the transmission sleeve in this utility model;

[0023] Figure 4 This is a cross-sectional view of the positioning sleeve in this utility model;

[0024] Figure 5 This is a schematic diagram of the resistance groove in this utility model.

[0025] In the diagram: 1. Support frame; 2. Mounting frame; 3. Coating roller; 4. Material box; 5. Guide roller; 6. Pressure roller; 7. Sliding block; 8. Screw; 9. Transmission sleeve; 10. Turning handle; 11. Positioning sleeve; 12. Limiting ring; 13. Sliding hole; 14. Sliding groove; 15. Abutment rod; 16. Rotating sleeve; 17. Inclined push block; 18. Abutment sleeve; 19. Inclined abutment block; 20. Guide strip; 21. Connecting sleeve; 22. Connecting groove; 23. Compression spring; 24. Stop block; 25. Resistance groove; 26. Push spring; 27. Positioning block; 28. Positioning groove. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A coating apparatus for manufacturing packaging paper includes a support frame 1, on which a coating mechanism is mounted. The coating mechanism includes a mounting frame 2, a coating roller 3, a material box 4, a guide roller 5, and a pressure roller 6. The mounting frame 2 is fixed to the top surface of the support frame 1. The coating roller 3 rotates on the inner wall of the mounting frame 2. The material box 4 is placed below the coating roller 3. Multiple sets of guide rollers 5 are mounted on the support frame 1. The pressure roller 6 has adjusting mechanisms at both ends connected to the mounting frame 2. The adjusting mechanisms include a sliding block 7, a screw 8, a transmission sleeve 9, a throttle 10, a positioning sleeve 11, a limit ring 12, a sliding hole 13, a push spring 26, a positioning block 27, and a positioning groove 28. 8 and locking mechanism, sliding block 7 slides on both sides of mounting frame 2 and is rotatably connected to both ends of pressure roller 6, screw 8 rotates on top of sliding block 7, transmission sleeve 9 rotates on top surface of mounting frame 2 and is threadedly connected to screw 8, throttle 10 is fixed on top surface of transmission sleeve 9, positioning sleeve 11 is fixed on top surface of mounting frame 2, limit ring 12 is fixed on outer wall of transmission sleeve 9 and rotatably connected to positioning sleeve 11, multiple sets of sliding holes 13 are provided on bottom surface of limit ring 12, push spring 26 is connected to inner wall of multiple sets of sliding holes 13, positioning block 27 is fixed on bottom end of multiple sets of push spring 26, and positioning groove 28 is provided in multiple sets distributed inside positioning sleeve 11.

[0030] The mounting frame 2 has sliding grooves 14 on both sides. Multiple sets of sliding blocks 7 slide in the multiple sets of sliding grooves 14. The sliding grooves 14 provide a precise linear motion track for the sliding blocks 7, ensuring the smooth adjustment of the pressure roller 6.

[0031] All sets of positioning blocks 27 are spherical, and all sets of positioning grooves 28 have rounded corners on the outside. The cooperation between the spherical positioning blocks 27 and the rounded corner positioning grooves 28 achieves low-friction positioning contact, which facilitates quick locking and unlocking.

[0032] Multiple positioning blocks 27 are fixedly provided with abutment rods 15 on their outer walls. The multiple abutment rods 15 are slidably connected to the limiting ring 12. The abutment rods 15 convert the radial movement of the positioning blocks 27 into an axial force on the limiting ring 12, thereby enhancing the locking effect.

[0033] The locking mechanism includes a rotating sleeve 16, a slanted push block 17, an abutting sleeve 18, and a slanted abutting block 19. The rotating sleeve 16 rotates on the outer wall of the transmission sleeve 9. Multiple sets of slanted push blocks 17 are provided and are all fixed on the bottom surface of the rotating sleeve 16. The abutting sleeve 18 slides on the outer wall of the transmission sleeve 9. Multiple sets of slanted abutting blocks 19 are provided and are fixed on the top surface of the abutting sleeve 18. The slanted surfaces of the slanted push block 17 and the slanted abutting block 19 cooperate to convert the rotational motion into linear motion, thereby producing a mechanical self-locking effect.

[0034] The outer wall of the transmission sleeve 9 is provided with guide strips 20. Multiple sets of guide strips 20 are slidably connected to the abutment sleeve 18. The guide strips 20 restrict the abutment sleeve 18 to move only axially, ensuring that the movement direction of the locking mechanism is accurate.

[0035] A connecting sleeve 21 is fixedly provided on the top surface of the rotating sleeve 16. A connecting groove 22 is provided on the inner wall of the connecting sleeve 21. Multiple sets of connecting grooves 22 are provided, and each set of them is connected to a pressure spring 23. A stop block 24 is fixedly provided at the bottom end of each set of pressure springs 23. A resistance groove 25 is provided on the outer wall of the transmission sleeve 9. Multiple sets of resistance grooves 25 are provided and each set of them engages with a stop block 24. Under the action of the pressure spring 23, the stop block 24 forms a stop feel with the resistance groove 25, providing operation feedback.

[0036] The outer sides of the multiple sets of resistance grooves 25 are all rounded, and the bottom ends of the multiple sets of stop blocks 24 are all arc-shaped and engage with the multiple sets of resistance grooves 25. The arc-shaped contact surface design reduces contact stress, improves the service life of the mechanism and the operating feel.

[0037] In this embodiment, the packaging paper is inserted between the coating roller 3 and the pressure roller 6, and the coating is injected into the material box 4. The packaging paper is pulled manually or by using an external winding device. The packaging paper drives the coating roller 3 and the pressure roller 6 to rotate. The coating roller 3 rotates in the coating in the material box 4 to apply the coating onto the packaging paper. The rotating handle 10 drives the transmission sleeve 9 to rotate and engages with the screw 8. This causes the screw 8 to drive the sliding block 7 to move along the sliding groove 14 and drive the pressure roller 6 to move. The distance between the pressure roller 6 and the coating roller 3 is adjusted to accommodate packaging paper of different thicknesses.

[0038] More specifically, after adjustment, multiple sets of push springs 26 push multiple sets of positioning blocks 27 into the positioning groove 28, and then rotate the rotating sleeve 16 to drive multiple sets of inclined push blocks 17 to rotate. The multiple sets of inclined push blocks 17 push multiple sets of inclined abutment blocks 19 to make the abutment sleeve 18 slide along multiple sets of guide strips 20 and abut against the top of multiple sets of abutment rods 15, so that the limiting ring 12 and the positioning sleeve 11 are locked and fixed, thereby fixing the transmission sleeve 9.

[0039] In summary, when the entire equipment is in use or running: the packaging paper is inserted between the coating roller 3 and the pressure roller 6, the coating is injected into the material box 4, and the packaging paper is pulled manually or by using an external winding device. The packaging paper drives the coating roller 3 and the pressure roller 6 to rotate. The coating roller 3 rotates in the coating in the material box 4 to apply the coating to the packaging paper. The rotating handle 10 drives the transmission sleeve 9 to rotate and engages with the screw 8, so that the screw 8 drives the sliding block 7 to move along the sliding groove 14 and drives the pressure roller 6 to move. The distance between the pressure roller 6 and the coating roller 3 is adjusted to accommodate packaging paper of different thicknesses.

[0040] After adjustment, multiple sets of push springs 26 push multiple sets of positioning blocks 27 into the positioning groove 28. Then, rotating the rotating sleeve 16 drives multiple sets of inclined push blocks 17 to rotate. Multiple sets of inclined push blocks 17 push multiple sets of inclined abutment blocks 19 so that the abutment sleeve 18 slides along multiple sets of guide strips 20 and abuts against the top of multiple sets of abutment rods 15, so that the limiting ring 12 and the positioning sleeve 11 are locked and fixed, thereby fixing the transmission sleeve 9.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coating apparatus for manufacturing packaging paper, comprising a support frame (1), characterized in that: The support frame (1) is equipped with a coating mechanism, which includes a mounting frame (2), a coating roller (3), a material box (4), a guide roller (5), and a pressure roller (6). The mounting frame (2) is fixed to the top surface of the support frame (1), the coating roller (3) rotates on the inner wall of the mounting frame (2), the material box (4) is placed below the coating roller (3), and multiple sets of guide rollers (5) are mounted on the support frame (1). The pressure roller (6) has adjustment mechanisms at both ends connected to the mounting frame (2). The adjustment mechanism includes a sliding block (7), a screw (8), a transmission sleeve (9), a throttle (10), a positioning sleeve (11), a limit ring (12), a sliding hole (13), a push spring (26), a positioning block (27), a positioning groove (28), and a lock. The mechanism consists of a sliding block (7) sliding on both sides of the mounting frame (2) and rotatably connected to both ends of the pressure roller (6), a screw (8) rotating on the top of the sliding block (7), a transmission sleeve (9) rotating on the top surface of the mounting frame (2) and threadedly connected to the screw (8), a throttle (10) fixed on the top surface of the transmission sleeve (9), a positioning sleeve (11) fixed on the top surface of the mounting frame (2), a limiting ring (12) fixed on the outer wall of the transmission sleeve (9) and rotatably connected to the positioning sleeve (11), multiple sets of sliding holes (13) distributed on the bottom surface of the limiting ring (12), a push spring (26) connected to the inner wall of multiple sets of sliding holes (13), a positioning block (27) fixed on the bottom end of multiple sets of push springs (26), and multiple sets of positioning grooves (28) distributed inside the positioning sleeve (11).

2. The coating apparatus for manufacturing packaging paper according to claim 1, characterized in that: The mounting bracket (2) has sliding grooves (14) on both sides, and multiple sets of sliding blocks (7) slide in the multiple sets of sliding grooves (14).

3. The coating apparatus for manufacturing packaging paper according to claim 2, characterized in that: The multiple sets of positioning blocks (27) are all spherical, and the multiple sets of positioning grooves (28) are all rounded on the outside.

4. A coating apparatus for manufacturing packaging paper according to claim 3, characterized in that: multiple sets The outer wall of each positioning block (27) is fixedly provided with abutment rods (15), and multiple sets of abutment rods (15) are slidably connected to the limiting ring (12).

5. A coating apparatus for manufacturing packaging paper according to claim 4, characterized in that: The locking mechanism includes a rotating sleeve (16), a slanted push block (17), an abutting sleeve (18), and a slanted abutting block (19). The rotating sleeve (16) rotates on the outer wall of the transmission sleeve (9). Multiple sets of slanted push blocks (17) are provided and all are fixed on the bottom surface of the rotating sleeve (16). The abutting sleeve (18) slides on the outer wall of the transmission sleeve (9). Multiple sets of slanted abutting blocks (19) are provided and fixed on the top surface of the abutting sleeve (18).

6. The coating apparatus for manufacturing packaging paper according to claim 5, characterized in that: The outer wall of the transmission sleeve (9) is provided with guide strips (20), and the guide strips (20) are provided in multiple sets, all of which are slidably connected to the abutment sleeve (18).

7. A coating apparatus for manufacturing packaging paper according to claim 6, characterized in that: The rotating sleeve (16) is fixedly provided with a connecting sleeve (21) on its top surface. The inner wall of the connecting sleeve (21) is provided with a connecting groove (22). The connecting groove (22) is provided with multiple sets and each of the inner walls is connected with a pressure spring (23). The bottom end of each of the multiple sets of pressure springs (23) is fixedly provided with a stop block (24). The outer wall of the transmission sleeve (9) is provided with a resistance groove (25). The resistance groove (25) is provided with multiple sets and is engaged with each of the multiple sets of stop blocks (24).

8. A coating apparatus for manufacturing packaging paper according to claim 7, characterized in that: multiple sets The outer side of each resistance groove (25) is provided with rounded corners, and the bottom of each set of gear blocks (24) is set in an arc shape and engages with each set of resistance grooves (25).

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