Coating device with deviation rectifying and automatic model changing functions

Abstract

The invention relates to a coating device with correction and automatic remodeling functions, which comprises a coating roller, one side of the coating roller is provided with a coating assembly, an adjusting assembly for adjusting the size of a nozzle of the coating assembly is arranged above the coating assembly, the other end of the coating assembly is provided with a storage bin, and the storage bin is connected with the coating assembly. A feeding assembly is arranged at the other end of the storage bin, a recycling assembly is arranged at the lower end of the storage bin, and the recycling assembly synchronously adjusts the recycling speed of the coating liquid through an adjusting assembly; according to the device, the size of the nozzle is automatically adjusted, the coating liquid recycling speed is synchronously adjusted, the flow speed of the coating liquid and the covering thickness of the coating liquid on a product can be rapidly adjusted when different products are replaced, the adjusting time and the foil straightening length can be shortened through the arranged deviation correcting device, the working time and the waste of the foil are reduced, and the production efficiency is improved. And personnel operation is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery production, in particular to a coating device with automatic type changing and deviation correction functions. BACKGROUND

[0002] Coating operation is a process of uniformly coating paint on the surface of a substrate, including eight mainstream methods such as gravure coating and slot coating, and the core process covers four major procedures of unwinding, coating, drying and winding, and is widely used in the fields of lithium batteries, optical films and the like.

[0003] A Chinese invention with application publication number CN115003421B discloses a coating device and a coating method, a supply valve and a return valve, the supply valve supplies coating liquid from a supply mechanism to the inlet side of the supply valve, the outlet side of the supply valve is connected with a die head, the return valve supplies coating liquid from a supply mechanism to the inlet side of the return valve, the outlet sides of the supply valve and the return valve are connected with a pipe, i.e., a return pipe, that returns the coating liquid to a tank, and the two states of opening of the flow path of the coating liquid and closing of the flow path of the coating liquid can be switched and controlled.

[0004] However, the inventor found that the size of the nozzle in the die head in the above-mentioned device is controlled by replacing the thickness of the pad, and the nozzle needs to be replaced multiple times for spraying different specifications of products, which is not only time-consuming and laborious, but also causes the coating device to have the problem of uneven coating of the coating liquid, and on this basis, the present application provides a coating device with automatic type changing and deviation correction functions. SUMMARY

[0005] The present application aims to solve the problems of the prior art, by providing a coating device with automatic type changing and deviation correction functions, which comprises a coating roller, a coating assembly is arranged on one side of the coating roller, a deviation correction device is arranged on the other side of the coating roller, an adjusting assembly for adjusting the size of the nozzle of the coating assembly is arranged above the coating assembly, a storage bin is arranged at the other end of the coating assembly, a feeding assembly is arranged at the other end of the storage bin, a recovery assembly is arranged at the lower end of the storage bin, and the recovery assembly synchronously adjusts the recovery speed of the coating liquid through the adjusting assembly.

[0006] To solve the above technical problems, the technical solution adopted by the present application is as follows: A coating device with automatic type changing and deviation correction functions, comprising a coating roller, a coating assembly is arranged on one side of the coating roller, a deviation correction device is arranged on the other side of the coating roller, an adjusting assembly for adjusting the size of the nozzle of the coating assembly is arranged above the coating assembly, a storage bin is arranged at the other end of the coating assembly, a feeding assembly is arranged at the other end of the storage bin, a recovery assembly is arranged at the lower end of the storage bin, and the recovery assembly synchronously adjusts the recovery speed of the coating liquid through the adjusting assembly.

[0007] As a kind of preferred, the coating assembly includes upper die head and lower die head, arc plate is arranged at the liquid outlet of upper die head and lower die head and arc block is arranged between upper die head and lower die head.

[0008] As a kind of preferred, the diameter of arc block is 2mm-4mm, and the spacing between adjacent arc blocks is 2mm-4mm.

[0009] As a kind of preferred, the feeding channel is formed between the upper die head and the lower die head, and the upper die head is slidingly arranged on the inner wall of the lower die head.

[0010] As a kind of preferred, the adjusting assembly includes a rectangular block arranged on the upper surface of the upper die head, a limiting frame arranged on the outer side of the rectangular block, a support frame arranged on both sides of the limiting frame, a lead screw rotatably arranged in the rectangular block, and a first motor for driving the rotation of the lead screw.

[0011] As a kind of preferred, the feeding assembly includes a feeding pipe arranged at the end of the storage bin, an auger arranged in the feeding pipe, a barrel arranged at the other end of the auger, and a second motor arranged on the side of the barrel.

[0012] As a kind of preferred, the recycling assembly includes a recycling pipe arranged at the lower end surface of the storage bin, a fixed plate arranged at the pipe opening of the recycling pipe, a sliding plate slidingly arranged on both sides of the fixed plate, a spring arranged between the two sliding plates, a first, second, third and fourth hinged rods sequentially hinged on the sliding plate, a conical block arranged on one side of the first hinged rod, and a connecting rod for connecting the conical block and the upper die head.

[0013] As a kind of preferred, the side surface of the first hinged rod is provided with a support rod, the support rod abuts against the conical surface of the conical block, the lower end of the second hinged rod and the third hinged rod are provided with external teeth, and the external teeth on the second hinged rod and the third hinged rod are engaged.

[0014] As a kind of preferred, the storage bin is fixedly connected with the lower die head, the upper end surface of the upper die head is provided with a baffle, the baffle is slidingly arranged inside the storage bin, and a baffle strip is arranged at the joint of the storage bin and the baffle.

[0015] As another kind of preferred, the deviation correcting device includes a unwinding deviation correcting inductor, an intermediate deviation correcting sensor and a winding deviation correcting sensor.

[0016] The beneficial effects of the present application are as follows: The present application realizes automatic adjustment of nozzle size, and synchronously adjusts the speed of coating liquid recovery, so that the device can quickly adjust the flow rate of coating liquid and the thickness of coating on the processing object when different processing objects are replaced.

[0017] The present application sets the arc-shaped blocks alternately between the upper die head and the lower die head, and the coating liquid presents a wavy distribution when flowing through the feeding channel, and is extruded by the upper and lower arc-shaped blocks, so that the coating liquid can cover the processing object more uniformly and slowly, and the coating liquid is covered more uniformly, and the problem of uneven thickness of the product surface coating liquid caused by too fast flow speed does not occur.

[0018] In the present application, the unwinding deviation correction sensor, the intermediate deviation correction sensor and the winding deviation correction sensor are arranged, compared with the conventional deviation correction and type changing process, the steps of "fine adjustment of unwinding, intermediate and winding deviation correction positions" are omitted, since the control center positions of the three deviation correction sensors are on a line, the foil edge of unwinding and winding is also on a line with the sensor control center line according to the indication of the infrared indicator, which reduces the adjustment time and the length of the foil walking, reduces the working hours and the waste of the foil, and facilitates personnel operation.

[0019] In summary, the device has the advantages of high production efficiency, uniform coating, easy adjustment and the like, and is especially suitable for the lithium battery production technical field. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0021] Figure 1 It is a shaft measurement structure schematic diagram of a coating device with automatic type changing function of deviation correction; Figure 2 It is a cross-sectional structure schematic diagram of a coating device with automatic type changing function of deviation correction; Figure 3 It is a cross-sectional structure schematic diagram of a coating device with automatic type changing function of deviation correction; Figure 4 It is a structure schematic diagram of an adjusting assembly; Figure 5 It is a structure schematic diagram of a storage bin; Figure 6 It is a structure schematic diagram of a recovery assembly; Figure 7 It is a structure schematic diagram of a recovery assembly; Figure 8 It is a structure schematic diagram of a deviation correction device; In the diagram: 1-Coating roller; 2-Coating assembly; 3-Adjusting assembly; 4-Storage bin; 5-Feeding assembly; 6-Recovery assembly; 7-Correction device; 21-Upper die head; 22-Lower die head; 23-Arc plate; 24-Arc block; 25-Feeding channel; 31-Rectangular block; 32-Limiting frame; 33-Support frame; 34-Screw; 35-First motor; 41-Baffle; 42-Baffle bar; 51-Feeding pipe; 52 53-Auger; 54-Cylinder; 65-Second Motor; 66-Spring; 67-Recovery Pipe; 68-Fixed Plate; 69-Sliding Plate; 60-First Hinge Rod; 61-Second Hinge Rod; 62-Third Hinge Rod; 63-Third Hinge Rod; 64-Fourth Hinge Rod; 65-Conical Block; 66-Connecting Rod; 77-Unwinding Correction Sensor; 78-Intermediate Correction Sensor; 79-Rewinding Correction Sensor; 70-Support Rod; 61-External Gear. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] Example 1 like Figures 1 to 8 As shown, a coating device with automatic correction and shape-changing function includes a coating roller 1, a coating component 2 on one side of the coating roller 1, a correction device 7 on the other side of the coating roller 1, an adjustment component 3 above the coating component 2 for adjusting the size of the nozzle of the coating component 2, a storage bin 4 at the other end of the coating component 2, a feeding component 5 at the other end of the storage bin 4, and a recovery component 6 at the lower end of the storage bin 4. The recovery component 6 synchronously adjusts the speed of coating liquid recovery through the adjustment component 3.

[0024] It is worth mentioning here that, as Figure 2 As shown, the coating assembly 2 includes an upper die head 21 and a lower die head 22, an arc-shaped plate 23 disposed at the liquid outlet of the upper die head 21 and the lower die head 22, and arc-shaped blocks 24 alternately distributed between the upper die head 21 and the lower die head 22; the diameter of the arc-shaped blocks 24 is 2mm-4mm, and the distance between adjacent arc-shaped blocks 24 is 2mm-4mm; a feeding channel 25 is formed between the upper die head 21 and the lower die head 22, and the upper die head 21 is slidably disposed on the inner wall of the lower die head 22; in this invention, the coating liquid flows through the feeding channel 25 in a wave-like distribution, and is squeezed by the arc-shaped blocks 24 at both ends, so that the coating liquid can cover the processing object more evenly and slowly, making the coating liquid coverage more uniform.

[0025] In this embodiment, as Figure 4As shown in the figure, the adjusting assembly 3 comprises a rectangular block 31 arranged on the upper surface of the upper die head 21, a limiting frame 32 arranged outside the rectangular block 31, support frames 33 arranged on both sides of the limiting frame 32, a lead screw 34 rotatably arranged in the rectangular block 31, and a first motor 35 for driving the rotation of the lead screw 34; in the present application, the first motor 35 drives the rotation of the lead screw 34, and the rectangular block 31 is limited in the limiting frame 32, so that the rectangular block 31 drives the upper die head 21 to move up and down, thereby adjusting the size of the nozzle.

[0026] Further, as shown in the figure, Figure 3 As shown in the figure, the feeding assembly 5 comprises a feeding pipe 51 arranged at the end of the storage bin 4, an auger 52 arranged in the feeding pipe 51, a barrel 53 arranged at the other end of the auger 52, and a second motor 54 arranged on the side of the barrel 53.

[0027] In the present embodiment, as shown in the figure, Figures 6 to 7 As shown in the figure, the recycling assembly 6 comprises a recycling pipe 61 arranged on the lower end surface of the storage bin 4, a fixed plate 62 arranged at the pipe opening of the recycling pipe 61, sliding plates 63 slidingly arranged on both sides of the fixed plate 62, springs 60 arranged between the two sliding plates 63, first, second, third and fourth hinged rods 64, 65, 66 and 67 sequentially hinged on the sliding plates 63, a conical block 68 arranged on one side of the first hinged rod 64, and a connecting rod 69 for connecting the conical block 68 and the upper die head 21; in the present application, the conical block 68 moves upwards, the extrusion of the supporting rod 641 by the conical block 68 is reduced, the supporting rod 641 rotates clockwise, the outer teeth on the second and third hinged rods 65 and 66 are engaged, and the two sliding plates 63 are driven to move inward by the tension of the springs 60 between the two sliding plates 63, thereby reducing the inlet of the recycling pipe 61.

[0028] It should be emphasized that, as shown in the figure, Figures 6 to 7 As shown in the figure, the side surface of the first hinged rod 64 is provided with a supporting rod 641, the supporting rod 641 abuts against the conical surface of the conical block 68, the lower end of the second and third hinged rods 65 and 66 is provided with an outer tooth 651, and the outer teeth on the second and third hinged rods 65 and 66 are engaged; in the present application, the relative or opposite movement of the two sliding plates 63 can be realized by the engagement of the outer teeth on the second and third hinged rods 65 and 66, and the distance of the movement is equal.

[0029] In addition, as shown in the figure, Figure 5 The storage bin 4 is fixedly connected with the lower die head 22, the upper end surface of the upper die head 21 is provided with a baffle 41, the baffle 41 is slidingly arranged inside the storage bin 4, and the storage bin 4 is provided with a baffle 42 at the joint with the baffle 41; in the present application, the joint of the baffle 41 and the storage bin 4 is sealingly arranged.

[0030] It is worth mentioning here that, as shown in Figure 8 The deviation correcting device 7 comprises a unwinding deviation correcting inductor 71, an intermediate deviation correcting sensor 72 and a winding deviation correcting sensor 73.

[0031] The working process is as follows: The object to be coated is unwound, and after unwinding, the deviation correcting device 7 is used to correct the placement of the object, so that the object is in a centered state on the coating roller 1. The second motor 54 is started to drive the auger 52 to rotate, so that the slurry is transported into the storage bin 4, and a part of the slurry in the storage bin 4 is transported into the feeding channel 25, and the other part is returned to the barrel 53 through the recovery pipe 61. When the size of the coating nozzle needs to be adjusted, the first motor 35 is started to drive the lead screw 34 to rotate, thereby driving the rectangular block 31 and the upper die head 21 to move upwards, driving the connecting rod 69 and the conical block 68 to move upwards, reducing the extrusion of the supporting rod 641 by the conical block 68, so that the supporting rod 641 rotates clockwise, and through the meshing of the outer teeth on the second hinge rod 65 and the third hinge rod 66, and through the tension of the spring 60 between the two sliding plates 63, the two sliding plates 63 are driven to move inward, thereby reducing the inlet of the recovery pipe 61.

[0032] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements easily thought of by those skilled in the art under the technical hints of the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A coating device with a function of automatic profile change with deviation correction, comprising a coating roller (1), characterized in that: The coating roller (1) is provided with a coating assembly (2) on one side, and is provided with a deviation rectifying device (7) on the other side; the coating assembly (2) is provided with an adjusting assembly (3) for adjusting the nozzle size of the coating assembly (2) above; the coating assembly (2) is provided with a storage bin (4) at the other end; the storage bin (4) is provided with a feeding assembly (5) at the other end; the lower end of the storage bin (4) is provided with a recycling assembly (6); the recycling assembly (6) synchronously adjusts the speed of coating liquid recycling through the adjusting assembly (3).

2. The coating device with a rectification and automatic change type function according to claim 1, characterized in that, The coating assembly (2) comprises an upper die head (21) and a lower die head (22), an arc-shaped plate (23) arranged at the liquid outlet of the upper die head (21) and the lower die head (22), and arc-shaped blocks (24) arranged between the upper die head (21) and the lower die head (22) in an alternating manner.

3. The coating device with a rectification and automatic change type function according to claim 2, characterized in that, The diameter of the arc-shaped block (24) is 2-4 mm, and the spacing between adjacent arc-shaped blocks (24) is 2-4 mm.

4. The coating apparatus with a rectification and automatic change type function according to claim 2, wherein The upper die head (21) and the lower die head (22) form a feeding channel (25), and the upper die head (21) is slidingly arranged on the inner wall of the lower die head (22).

5. The coating apparatus with a web deviation correction and automatic changeover function according to claim 1, wherein The adjusting assembly (3) comprises a rectangular block (31) arranged on the upper surface of the upper die head (21), a limiting frame (32) arranged on the outer side of the rectangular block (31), support frames (33) arranged on both sides of the limiting frame (32), a lead screw (34) rotatably arranged in the rectangular block (31), and a first motor (35) for driving the rotation of the lead screw (34).

6. The coating apparatus with a web deviation correction and automatic changeover function according to claim 1, wherein The feeding assembly (5) comprises a feeding pipe (51) arranged at the end of the storage bin (4), an auger (52) arranged in the feeding pipe (51), a barrel (53) arranged at the other end of the auger (52), and a second motor (54) arranged on the side of the barrel (53).

7. The coating apparatus with a web deviation correction and automatic changeover function according to claim 1, wherein The recycling assembly (6) comprises a recycling pipe (61) arranged at the lower end surface of the storage bin (4), a fixed plate (62) arranged at the pipe opening of the recycling pipe (61), sliding plates (63) slidingly arranged on both sides of the fixed plate (62), springs (60) arranged between the two sliding plates (63), first, second, third and fourth hinged rods (64, 65, 66 and 67) sequentially hinged on the sliding plates (63), a conical block (68) arranged on one side of the first hinged rod (64), and a connecting rod (69) for connecting the conical block (68) and the upper die head (21).

8. The coating apparatus with a web deviation correction and automatic changeover function according to claim 7, wherein The side surface of the first connecting rod (64) is provided with a supporting rod (641) abutting against the conical surface of the conical block (68), and the lower ends of the second and third hinged rods (65 and 66) are provided with external teeth (651), which are engaged with each other.

9. The coating apparatus with a web deviation correction and automatic changeover function according to claim 1, wherein The storage bin (4) is fixedly connected with the lower die head (22), the upper end face of the upper die head (21) is provided with a baffle (41), the baffle (41) is slidably arranged in the storage bin (4), and the storage bin (4) is provided with a baffle strip (42) at the joint with the baffle (41).

10. The coating apparatus with a web deviation correction and automatic changeover function according to claim 1, wherein The deviation correcting device (7) comprises a unwinding deviation correcting inductor (71), an intermediate deviation correcting sensor (72) and a winding deviation correcting sensor (73).

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