Gap adjusting mechanism for roller type coating head

Abstract

The utility model discloses a gap adjusting mechanism for a roller type coating head, and particularly relates to the technical field of roller type coating heads, the gap adjusting mechanism comprises two device side plates, a gap adjusting mechanism is arranged between the two device side plates, the gap adjusting mechanism comprises a front coating roller and a rear coating roller, and the front coating roller and the rear coating roller are both arranged between the two device side plates. According to the utility model, the gap adjusting mechanism is arranged, and the ball screw is matched with the turbine worm reducer, so that more accurate gap adjustment of the two rollers is realized, more uniform coating effect, high quality, accurate gap control and stable mechanism operation are ensured, and the coating head can keep good stability in the working process; the gap adjusting device is simple in structure and convenient to operate, reduces faults or bad conditions caused by improper gaps, can meet flexible adjustment of the gap between the two rollers under different production requirements, adapts to various working conditions and coating requirements of materials, reduces debugging time before production, and improves working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of roller coating heads, and more specifically, to a gap adjustment mechanism for a roller coating head. Background Art

[0002] A roller coating head is a coating device that mainly consists of a coating mechanism and a steering support mechanism. It is often used to evenly apply solvent-free or low-solvent coatings during printing and coating processes. It consists of multiple rollers that rotate and evenly transfer the coating to the work material. By changing the pressure between the two rollers, the coating thickness can be adjusted.

[0003] After searching, the Chinese patent with publication number CN212284650U discloses a reverse anilox roller coating head. In view of the problem that the two-roller pressed reverse coating device in the cited document cannot effectively control the thickness of the substrate coating when in use, so that the coating thickness cannot be effectively controlled, and the two-roller pressed reverse coating device cannot effectively dry the coated substrate when in use, and the ink is easily caused to fall after coating is completed, thereby wasting raw materials, the distance between the adjusting roller A and the adjusting roller B can be quantitatively adjusted, so that the thickness of the substrate can be limited, so that the ink coating thickness on the substrate surface can be quickly adjusted, and at the same time, the air heated by the heater is continuously sent out, so that the inside of the drying chamber is continuously dried, so that the ink on the substrate surface after coating is quickly dried.

[0004] The transmission roller adjustment accuracy of the roller coating head is low. At the same time, in the existing process of adjusting the gap of some transmission rollers, since the roller movement is hydraulically controlled, the gap between the rollers is generally adjusted by directly adjusting the screw with a hand wheel. This is labor-intensive and has low accuracy, affecting debugging and production efficiency. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, the present invention provides a gap adjustment mechanism for a roller coating head to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a gap adjustment mechanism for a roller coating head, comprising two device side plates, a gap adjustment mechanism being provided between the two device side plates;

[0007] The gap adjustment mechanism includes a front coating roller and a rear coating roller, and the front coating roller and the rear coating roller are both arranged between two device side plates, and a connecting plate is provided on the top of the two device side plates, and a ball screw is provided at the bottom of the connecting plate. The top and bottom of the ball screw are fixedly connected to the rotating shaft, and a connecting sleeve is provided on the outer fixed sleeve of the top of the rotating shaft, and a connecting shaft is installed between the connecting sleeve and the connecting plate. An upper bearing seat is installed on the top of the ball screw, and a lower bearing seat is installed on the bottom of the ball screw. A self-resetting linear displacement sensor is fixedly installed on one side of the lower bearing seat, and a screw sleeve is provided on the outer sleeve of the ball screw, a moving block is provided on one side of the bottom of the screw sleeve, and a moving oblique block is provided on the other side of the bottom of the screw sleeve, and a worm gear reducer is installed on the top of the connecting plate.

[0008] Preferably, the front coating roller and the rear coating roller are both movably connected to the two device side plates.

[0009] Preferably, the connecting shaft is arranged at the output end of the worm gear reducer, and the ball screw is threadedly connected to the screw sleeve.

[0010] Preferably, connecting bearings are installed between the upper bearing seat and the lower bearing seat and the rotating shaft, and the cross-section shape of the upper bearing seat and the lower bearing seat is set to be L-shaped.

[0011] Preferably, a handwheel is fixedly installed on the front side of the worm gear reducer, and a first fixing bolt is installed between one side of the upper bearing seat and the lower bearing seat and the side plate of the device.

[0012] Preferably, second fixing bolts are provided on the top of the connecting plate and the device side plate, and the connecting plate and the device side plate are installed by the second fixing bolts.

[0013] Preferably, the screw sleeve is arranged between the moving block and the moving oblique block, and the screw sleeve is slidably connected to the moving block and the moving oblique block.

[0014] The technical effects and advantages of this utility model are:

[0015] 1. By setting a gap adjustment mechanism and turning the hand wheel, the worm gear reducer drives the ball screw to rotate, so that the ball screw drives the outer screw sleeve to move, so that the screw sleeve pushes the moving block and the moving inclined block to move horizontally, completing the position adjustment of the front coating roller and the rear coating roller. Compared with the existing technology, the cooperation of the ball screw and the worm gear reducer realizes more precise adjustment of the gap between the two rollers, ensuring a more uniform and high-quality coating effect. The precise gap control and stable mechanism operation ensure that the coating head can maintain good stability during the working process, reduce failures or adverse conditions caused by improper gaps, can meet the flexible adjustment of the gap between the two rollers under different production needs, adapt to the coating requirements of various working conditions and materials, reduce the debugging time before production, and improve work efficiency.

[0016] 2. By setting the rotating shaft and connecting bearing, the ball screw can be easily rotated between the upper bearing seat and the lower bearing seat, thereby ensuring that the screw sleeve can move up and down, ensuring the smoothness of the distance adjustment between the front coating roller and the rear coating roller. With the help of the self-resetting linear displacement sensor, the gap change between the two rollers can be measured. The operator can understand the gap status and facilitate precise adjustment, thereby improving the accuracy and controllability of the work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the gap adjustment mechanism of the present utility model.

[0019] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0020] Figure 4 For the utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] The accompanying drawings are marked as follows: 1. Device side panel; 2. Front coating roller; 3. Rear coating roller; 4. Connecting plate; 5. Ball screw; 6. Connecting sleeve; 7. Connecting shaft; 8. Upper bearing seat; 9. Lower bearing seat; 10. Self-resetting linear displacement sensor; 11. Screw sleeve; 12. Moving block; 13. Moving bevel block; 14. Worm gear reducer; 15. Handwheel; 16. First fixing bolt; 17. Rotating shaft; 18. Connecting bearing; 19. Second fixing bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] As attached Figure 1-4 The gap adjustment mechanism for a roller coating head shown includes two device side plates 1, and a gap adjustment mechanism is provided between the two device side plates 1;

[0024] The gap adjustment mechanism includes a front coating roller 2 and a rear coating roller 3, and the front coating roller 2 and the rear coating roller 3 are both arranged between two device side plates 1, and a connecting plate 4 is provided on the top of the two device side plates 1, and a ball screw 5 is provided at the bottom of the connecting plate 4. The top and bottom of the ball screw 5 are fixedly connected to a rotating shaft 17, and a connecting sleeve 6 is provided on the outer fixed sleeve of the top of the rotating shaft 17. A connecting shaft 7 is installed between the connecting sleeve 6 and the connecting plate 4, an upper bearing seat 8 is installed on the top of the ball screw 5, and a lower bearing seat 9 is installed at the bottom of the ball screw 5. A self-resetting linear displacement sensor 10 is fixedly installed on one side of the lower bearing seat 9, and a screw sleeve 11 is provided on the outer side of the ball screw 5. A moving block 12 is provided on one side of the bottom of the screw sleeve 11, and a moving oblique block 13 is provided on the other side of the bottom of the screw sleeve 11. A worm gear reducer 14 is installed on the top of the connecting plate 4.

[0025] As attached Figure 1 、 3 As shown, the front coating roller 2 and the rear coating roller 3 are both movably connected to the two device side plates 1, so that the front coating roller 2 and the rear coating roller 3 can be moved and adjusted between the two device side plates 1.

[0026] As attached Figure 1-3 As shown, the connecting shaft 7 is arranged at the output end of the worm gear reducer 14, the ball screw 5 is threadedly connected to the screw sleeve 11, and connecting bearings 18 are installed between the upper bearing seat 8 and the lower bearing seat 9 and the rotating shaft 17. The cross-section shape of the upper bearing seat 8 and the lower bearing seat 9 is set to be L-shaped, which facilitates the connecting shaft 7 to drive the ball screw 5 to rotate.

[0027] As attached Figure 1-4 As shown, a handwheel 15 is fixedly installed on the front side of the worm gear reducer 14, and a first fixing bolt 16 is installed between one side of the upper bearing seat 8 and the lower bearing seat 9 and the side plate 1 of the device. A second fixing bolt 19 is provided on the top of the connecting plate 4 and the side plate 1 of the device. The connecting plate 4 and the side plate 1 of the device are installed by the second fixing bolt 19 to improve the fixing effect of the overall device.

[0028] As attached Figure 1 、 2 As shown, the screw sleeve 11 is arranged between the moving block 12 and the moving inclined block 13. The screw sleeve 11 is slidably connected to the moving block 12 and the moving inclined block 13, so that the screw sleeve 11 moves to drive the moving block 12 and the moving inclined block 13 to move horizontally.

[0029] Working principle of the utility model: When the gap adjustment mechanism for a roller coating head provided by the utility model is used to adjust the distance between the front coating roller 2 and the rear coating roller 3, the hand wheel 15 is first rotated to drive the worm gear reducer 14, thereby driving the ball screw 5 to rotate. At the same time, due to the threaded connection between the ball screw 5 and the screw sleeve 11, the screw sleeve 11 moves up and down, thereby driving the screw sleeve 11 to squeeze the moving block 12 and the moving bevel block 13, thereby moving the moving block 12 and the moving bevel block 13, thereby changing the gap between the moving block 12 and the moving bevel block 13, and the distance between the front coating roller 2 and the rear coating roller 3 can also be measured through the lower bearing seat 9, and the gap change value between the front coating roller 2 and the rear coating roller 3 is observed, which is convenient for adjustment.

[0030] Finally, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed in this utility model are intended to be covered by the claims of this utility model.

Claims

1. A gap adjustment mechanism for a roller coating head, comprising two device side plates (1), Features: A gap adjustment mechanism is provided between the two device side plates (1); The gap adjustment mechanism comprises a front coating roller (2) and a rear coating roller (3), the front coating roller (2) and the rear coating roller (3) are both arranged between two device side plates (1), the tops of the two device side plates (1) are both provided with a connecting plate (4), the bottoms of the connecting plates (4) are provided with a ball screw (5), the top and bottom of the ball screw (5) are both fixedly connected to a rotating shaft (17), the top outer side fixed sleeve of the rotating shaft (17) is provided with a connecting sleeve (6), and a connecting sleeve (6) is installed between the connecting sleeve (6) and the connecting plate (4). A connecting shaft (7) is provided, an upper bearing seat (8) is installed on the top of the ball screw (5), a lower bearing seat (9) is installed on the bottom of the ball screw (5), a self-resetting linear displacement sensor (10) is fixedly installed on one side of the lower bearing seat (9), a screw sleeve (11) is sleeved on the outer side of the ball screw (5), a moving block (12) is provided on one side of the bottom of the screw sleeve (11), and a moving inclined block (13) is provided on the other side of the bottom of the screw sleeve (11), and a worm gear reducer (14) is installed on the top of the connecting plate (4).

2. The gap adjustment mechanism for a roller coating head according to claim 1, Features: The front coating roller (2) and the rear coating roller (3) are both movably connected to the two device side plates (1).

3. The gap adjustment mechanism for a roller coating head according to claim 1, Features: The connecting shaft (7) is arranged at the output end of the worm gear reducer (14), and the ball screw (5) is threadedly connected to the screw sleeve (11).

4. The gap adjustment mechanism for a roller coating head according to claim 1, Features: A connecting bearing (18) is installed between the upper bearing seat (8) and the lower bearing seat (9) and the rotating shaft (17), and the cross-sectional shape of the upper bearing seat (8) and the lower bearing seat (9) is set to be L-shaped.

5. The gap adjustment mechanism for a roller coating head according to claim 1, Features: A hand wheel (15) is fixedly mounted on the front side of the worm gear reducer (14), and a first fixing bolt (16) is mounted between one side of each of the upper bearing seat (8) and the lower bearing seat (9) and the device side plate (1).

6. The gap adjustment mechanism for a roller coating head according to claim 1, Features: The connecting plate (4) and the top of the device side plate (1) are provided with second fixing bolts (19), and the connecting plate (4) and the device side plate (1) are mounted via the second fixing bolts (19).

7. The gap adjustment mechanism for a roller coating head according to claim 1, Features: The screw sleeve (11) is arranged between the moving block (12) and the moving inclined block (13), and the screw sleeve (11) is slidably connected to the moving block (12) and the moving inclined block (13).

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