Coating die head and coating device

Abstract

The utility model relates to the technical field of coating devices, in particular to a coating die head and a coating device. The coating die head comprises an upper die head, a lower die head, a coating gasket, a stop block and a positioning piece, the upper die head is stacked on the lower die head, and the coating gasket is clamped between the upper die head and the lower die head. The check blocks are installed on the same side of the upper die head and the lower die head in the width direction, containing grooves are formed in the sides, in the width direction, of the check blocks, and the depth of the containing grooves is larger than or equal to the position adjusting limit of the coating gaskets in the width direction. The first end of the coating gasket is located in the containing groove. And the positioning piece is movably arranged on the stop block in the width direction and abuts against the first end of the coating gasket. The coating device comprises the coating die head, the stop block does not need to be grooved repeatedly after the coating die head is ground, and the position adjusting efficiency of the coating gasket is improved. Meanwhile, the coating gasket is effectively positioned through the positioning piece, so that the check block is suitable for upper and lower die heads with different grinding degrees, and the universality of the check block is improved.

Description

Technical Field

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

[0002] During the coating process of lithium-ion battery electrodes, the upper and lower dies are worn after long-term use and need to be repaired. After repair, the overall width of the upper and lower dies becomes narrower, and the coating pad sandwiched between the upper and lower dies needs to be moved backward to be used normally. The block in the coating die needs to increase the groove depth to compensate for the backward movement distance of the coating pad and at the same time play a positioning role for the coating pad.

[0003] Each time the existing coating die head is refurbished, the stop block needs to have its groove depth increased accordingly. This results in the stop block needing to be repeatedly grooved, which not only reduces the position adjustment efficiency of the coating pad, but also makes the stop block unsuitable for other upper and lower dies with different refurbishment levels after multiple grooving processes. It cannot effectively position the coating pad and requires frequent replacement of stop blocks with different groove depths. Utility Model Content

[0004] The purpose of this invention is to provide a coating die head and coating device to improve the position adjustment efficiency of the coating pad in the coating die head and the versatility of the stop block.

[0005] To achieve this objective, the technical solution adopted by this utility model is as follows:

[0006] A coating die head includes an upper die head, a lower die head, and a coating pad, wherein the upper die head is stacked on the lower die head, and the coating pad is sandwiched between the upper die head and the lower die head;

[0007] The coating die head further includes a stop block and a positioning element. The stop block is installed on the same side of the upper die head and the lower die head along the width direction. The stop block has a receiving groove on one side along the width direction, and the depth of the receiving groove is greater than or equal to the position adjustment limit of the coating pad along the width direction. The first end of the coating pad is located in the receiving groove. The positioning element is movably disposed on the stop block along the width direction and abuts against the first end of the coating pad.

[0008] As an optional solution for the coating mold, the stop block has a through-hole along the width direction, and the through-hole communicates with the receiving groove;

[0009] The positioning component includes a micrometer, the micrometer's bushing is fixedly inserted into the mounting hole, and one end of the micrometer's micrometer screw abuts against the first end of the coated gasket.

[0010] As an alternative to the coating mold, the positioning element also includes a locking ring, which is located inside the mounting hole and threadedly connected to the bushing.

[0011] As an optional solution for the coating mold, the mounting hole includes a first hole and a second hole that are connected in a stepped manner. The locking ring is located in the second hole. The outer periphery of the bushing abuts against the other side of the stop block along the width direction. One end of the bushing passes through the first hole and the second hole in sequence and is threadedly locked with the locking ring so that the locking ring fits against the stepped surface between the first hole and the second hole.

[0012] As an optional solution for the coating mold, the stop block has a through-hole along the width direction, and the through-hole communicates with the receiving groove;

[0013] The positioning element is a screw, which is threadedly connected to the mounting hole, and one end of the screw extends into the receiving groove and abuts against the first end of the coated gasket.

[0014] As an optional solution for the coating mold, the upper mold head and the lower mold head are provided with at least two stops spaced apart on the same side along the width direction, and each stop is provided with a positioning element movably arranged along the width direction.

[0015] As an optional solution for the coating mold, the depth of the receiving groove is 0.01mm to 6mm.

[0016] As an alternative to the coating mold, the stop block is threadedly connected to both the upper mold head and the lower mold head on the same side along the width direction.

[0017] As an optional solution for the coating mold, the stop block has at least two through holes, and the upper mold head and the lower mold head each have locking holes on the same side along the width direction. The locking holes and the through holes are connected in a one-to-one correspondence and are connected by bolts.

[0018] The coating apparatus includes the coating die head described above.

[0019] The beneficial effects of this utility model are as follows:

[0020] The coating die and coating device proposed in this utility model have a receiving groove depth of the stop block that is greater than or equal to the position adjustment limit of the coating pad along the width direction. This eliminates the need for repeated grooving of the stop block after grinding the coating die, thus improving the position adjustment efficiency of the coating pad. Simultaneously, the positioning element abuts against the first end of the coating pad, enabling effective positioning of the coating pad at different positions. This allows the stop block to be used with upper and lower dies of varying grinding degrees, avoiding frequent stop block replacements and improving its versatility. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the coating die head provided in an embodiment of the present invention;

[0022] Figure 2 This is a side view of the coating die head provided in an embodiment of the present invention;

[0023] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0024] Figure 4 This is an exploded view of the structure of the stop and positioning component provided in the embodiment of this utility model.

[0025] The component names and labels in the diagram are as follows:

[0026] 1. Upper die head; 2. Lower die head; 3. Coating gasket; 4. Stop block; 41. Receiving groove; 42. Mounting hole; 421. First hole; 422. Second hole; 423. Stepped surface; 43. Through hole; 5. Positioning component; 51. Micrometer; 511. Bushing; 512. Micrometer screw; 52. Locking ring. Detailed Implementation

[0027] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] This embodiment proposes a coating device, which includes a coating die, a coating die lifting platform, and a post-processing device, to coat battery electrodes with slurry through the coating die.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, this embodiment also proposes a coating die head, which includes an upper die head 1, a lower die head 2, and a coating pad 3. The upper die head 1 is stacked on the lower die head 2, and the coating pad 3 is sandwiched between the upper die head 1 and the lower die head 2. During the coating process of the electrode sheet, the upper and lower dies are worn after long-term use and need to be re-grinded. After re-grinding, the overall width of the upper and lower dies becomes narrower, and the coating pad 3 sandwiched between the upper and lower dies needs to be moved backward for normal use.

[0034] Each time the existing coating die head is re-grinded, the stop block needs to have its groove depth increased accordingly. This results in the stop block needing to be repeatedly grooved, which not only reduces the position adjustment efficiency of the coating pad, but also makes the stop block unsuitable for other upper and lower dies with different re-grinding degrees after multiple grooving processes. It cannot effectively position the coating pad and requires frequent replacement of stop blocks with different groove depths.

[0035] To solve the above problems, such as Figure 2 and Figure 3As shown, the coating die head also includes a stop block 4 and a positioning element 5. The stop block 4 is installed on the same side of both the upper die head 1 and the lower die head 2 along the width direction (front-back direction in the figure). A receiving groove 41 is formed on one side of the stop block 4 along the width direction, and the depth of the receiving groove 41 is greater than or equal to the position adjustment limit of the coating pad 3 along the width direction. The first end of the coating pad 3 is located in the receiving groove 41. The positioning element 5 is movably disposed on the stop block 4 along the width direction and abuts against the first end of the coating pad 3. Since the depth of the receiving groove 41 of the stop block 4 is greater than or equal to the position adjustment limit of the coating pad 3 along the width direction, it is not necessary to repeatedly perform grooving processing on the stop block 4 after the coating die head is re-grinded, thus improving the position adjustment efficiency of the coating pad 3. Simultaneously, the positioning element 5 abuts against the first end of the coating pad 3 (the first end being the end of the coating pad 3 that extends into the receiving groove 41), so that the positioning element 5 can effectively position the coating pad 3 at different positions, allowing the stop block 4 to be applicable to upper and lower dies with different grinding degrees, avoiding frequent replacement of the stop block 4 and improving the versatility of the stop block 4. Specifically, after the upper die 1 and lower die 2 have been ground, the width of the upper die 1 and lower die 2 becomes shorter according to different grinding degrees (i.e., grinding amount), and the coating pad 3 needs to be moved a specified distance from front to back to ensure the normal use of the coating die. Of course, the coating pad 3 can also be moved from back to front according to the installation requirements of the coating pad 3 to meet the assembly requirements of the coating die. Therefore, the coating pad 3 can achieve bidirectional position adjustment in the front-back direction.

[0036] In this embodiment, the depth of the receiving groove 41 is 0.01mm to 6mm. For example, the depth of the receiving groove 41 can be 0.01mm, 0.1mm, 1mm, 2mm, 3mm, 4mm, 5mm, or 6mm, etc. Since the position adjustment limit (maximum adjustment displacement) of the coating pad 3 in the front-back direction generally does not exceed 6mm, the depth of the receiving groove 41 in this embodiment is preferably 6mm. It can be understood that when the position adjustment limit of the coating pad 3 in the front-back direction does not exceed 3mm, the depth of the receiving groove 41 can also be 3mm. That is, the stop block 4 can be slotted according to the maximum grinding size of the upper die head 1 and the lower die head 2, so that the depth of the receiving groove 41 can accommodate the first end of the coating pad 3 after the position adjustment, avoiding contact or interference between the coating pad 3 and the inner wall of the receiving groove 41.

[0037] like Figure 1 and Figure 4 As shown, the stop block 4 is threadedly connected to both the upper die head 1 and the lower die head 2 on the same side along the width direction. The stop block 4 is installed on the rear side of both the upper die head 1 and the lower die head 2 by means of threaded connection, which improves the stability of the installation of the stop block 4, and at the same time realizes the detachable installation of the stop block 4, thereby improving the efficiency of the installation and removal of the stop block 4.

[0038] Furthermore, the stop block 4 has at least two through holes 43, and both the upper die head 1 and the lower die head 2 have locking holes on the same side along the width direction. The locking holes and through holes 43 are connected one-to-one and connected by bolts. The stop block 4 is fixedly installed on the rear side of both the upper die head 1 and the lower die head 2 by bolts to ensure that the side of the stop block 4 with the receiving groove 41 is in close contact with the rear side of both the upper die head 1 and the lower die head 2, thus ensuring the stability of the coating die head structure.

[0039] like Figure 4 As shown, the stop block 4 in this embodiment has three through holes 43, and the three through holes 43 are not on the same straight line, so that the stop block 4 has three fixed installation points that are not on the same straight line, which further improves the installation stability of the stop block 4. In other embodiments, the stop block 4 may also have four or five or more through holes 43 that are not on the same straight line, which is not specifically limited here.

[0040] like Figure 3 and Figure 4 As shown, the stop block 4 has a mounting hole 42 extending through it along its width, and the mounting hole 42 communicates with the receiving groove 41. The positioning component 5 includes a micrometer 51, the bushing 511 of which is fixedly inserted into the mounting hole 42, and one end of the micrometer screw 512 of the micrometer 51 abuts against the first end of the coating pad 3. By turning the micrometer screw 512 of the micrometer 51, the coating pad 3 can be precisely positioned, making the position adjustment of the coating pad 3 simple and easy, and enabling fine-tuning of the coating pad 3, thus improving the adjustment accuracy.

[0041] When the coating pad 3 needs to be adjusted from front to back position h1, the upper die head 1 and the lower die head 2 separate. The micrometer screw 512 is then turned according to h1, causing the measuring head that contacts the coating pad 3 to move from front to back. Once the micrometer screw 512 is in position, the coating pad 3 moves from front to back until it abuts against the micrometer screw 512, thus achieving effective positioning of the coating pad 3. Finally, the coating die head is reassembled. When the coating pad 3 needs to be adjusted from back to front position h2, the upper die head 1 and the lower die head 2 are separated. According to h2, the micrometer screw 512 is turned so that the measuring head that contacts the coating pad 3 moves from back to front and pushes the coating pad 3 to move synchronously from back to front until the micrometer screw 512 is rotated into place. At this time, the coating pad 3 moves from back to front h2. Finally, the coating die head is reassembled. During this process, the coating pad 3 is always in contact with the micrometer screw 512.

[0042] like Figure 4As shown, the positioning component 5 also includes a locking ring 52, which is located inside the mounting hole 42 and threadedly connected to the bushing 511. The micrometer 51 is fixedly installed on the stop block 4 through the threaded connection between the bushing 511 and the locking ring 52, which realizes the reliable installation of the micrometer 51, and at the same time makes the disassembly and assembly of the micrometer 51 simple, and facilitates the replacement and maintenance of the micrometer 51.

[0043] Specifically, the mounting hole 42 includes a first hole 421 and a second hole 422 that are connected in a stepped manner. The locking ring 52 is located inside the second hole 422. The outer periphery of the bushing 511 abuts against the other side of the stop block 4 along the width direction. One end of the bushing 511 passes through the first hole 421 and the second hole 422 in sequence and is threadedly locked with the locking ring 52 so that the locking ring 52 fits against the stepped surface 423 between the first hole 421 and the second hole 422. The inner diameter of the first hole 421 is smaller than the inner diameter of the second hole 422. The second hole 422 is connected to the receiving groove 41. The locking ring 52 is placed inside the second hole 422. One end of the bushing 511 of the micrometer 51 extends from the first hole 421 into the second hole 422 and is locked with the locking ring 52. The locking ring 52 abuts against the stepped surface 423. Part of the outer periphery of the bushing 511 abuts against the ungrooved side of the stop block 4 to achieve reliable installation of the micrometer 51.

[0044] In this embodiment, the position of the coating pad 3 is finely adjusted using a micrometer 51, improving the adjustment accuracy of the coating pad 3. In other embodiments, the positioning element 5 can also be a screw. The stop block 4 has a through-hole 42 along its width, which communicates with the receiving groove 41. The screw is threaded into the mounting hole 42, and one end of the screw extends into the receiving groove 41 and abuts against the first end of the coating pad 3. The coating pad 3 can also be effectively positioned by rotating the screw.

[0045] Specifically, at least two stops 4 are spaced apart on the same side along the width direction of both the upper die head 1 and the lower die head 2, and a positioning element 5 is movably disposed on each stop 4 along the width direction. By setting multiple stops 4 and positioning elements 5, the adjustment accuracy of the coating pad 3 is further improved, and the positional displacement of the coating pad 3 is avoided. In this embodiment, two stops 4 and two positioning elements 5 are provided. The two stops 4 are installed at intervals along the left and right direction on the rear side of the upper die head 1 and the lower die head 2. By adjusting the positioning elements 5 on the two stops 4 one by one (i.e., turning the two micrometers 51 one by one), the precise adjustment of the coating pad 3 is achieved.

[0046] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coating die head, characterized in that, It includes an upper die head (1), a lower die head (2) and a coating pad (3), wherein the upper die head (1) is stacked on the lower die head (2) and the coating pad (3) is sandwiched between the upper die head (1) and the lower die head (2); The coating die head also includes a stop (4) and a positioning member (5). The stop (4) is installed on the same side of the upper die head (1) and the lower die head (2) along the width direction. The stop (4) has a receiving groove (41) on one side along the width direction, and the depth of the receiving groove (41) is greater than or equal to the position adjustment limit of the coating pad (3) along the width direction. The first end of the coating pad (3) is located in the receiving groove (41). The positioning member (5) is movably disposed on the stop (4) along the width direction and abuts against the first end of the coating pad (3).

2. The coating die head according to claim 1, characterized in that, The stop block (4) has a through mounting hole (42) along the width direction, and the mounting hole (42) is connected to the receiving groove (41); The positioning component (5) includes a micrometer (51), the bushing (511) of the micrometer (51) is fixedly inserted into the mounting hole (42), and one end of the micrometer screw (512) of the micrometer (51) abuts against the first end of the coated pad (3).

3. The coating die head according to claim 2, characterized in that, The positioning element (5) also includes a locking ring (52), which is located in the mounting hole (42) and threadedly connected to the bushing (511).

4. The coating die head according to claim 3, characterized in that, The mounting hole (42) includes a first hole (421) and a second hole (422) that are connected in a stepped manner. The locking ring (52) is located in the second hole (422). The outer periphery of the bushing (511) abuts against the other side of the stop block (4) along the width direction. One end of the bushing (511) passes through the first hole (421) and the second hole (422) in sequence and is threadedly locked with the locking ring (52) so that the locking ring (52) fits against the stepped surface (423) between the first hole (421) and the second hole (422).

5. The coating die head according to claim 1, characterized in that, The stop block (4) has a through mounting hole (42) along the width direction, and the mounting hole (42) is connected to the receiving groove (41); The positioning element (5) is a screw, which is threadedly connected to the mounting hole (42), and one end of the screw extends into the receiving groove (41) and abuts against the first end of the coating pad (3).

6. The coating die head according to any one of claims 1 to 5, characterized in that, The upper die head (1) and the lower die head (2) are provided with at least two stops (4) spaced apart on the same side along the width direction, and each stop (4) is provided with a positioning member (5) movably arranged along the width direction.

7. The coating die head according to any one of claims 1 to 5, characterized in that, The depth of the receiving groove (41) is 0.01 mm to 6 mm.

8. The coating die head according to any one of claims 1 to 5, characterized in that, The stop block (4) is threaded to the upper die head (1) and the lower die head (2) on the same side along the width direction.

9. The coating die head according to claim 8, characterized in that, The stop block (4) has at least two through holes (43). The upper die head (1) and the lower die head (2) each have locking holes on the same side along the width direction. The locking holes and the through holes (43) are connected in a one-to-one correspondence and are connected by bolts.

10. A coating apparatus, characterized in that, The coating die head includes any one of claims 1 to 9.

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