CN217888500U

CN217888500U - Coating gasket and coating die head

Info

Publication number: CN217888500U
Application number: CN202221275129.XU
Authority: CN
Inventors: 吕振涛; 谢小军; 翟树赛; 朱勇; 吴俊锋; 平子豪
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-11-25
Anticipated expiration: 2032-05-24

Abstract

The embodiment of the utility model relates to a coating gasket and coating die head, the coating gasket includes the gasket body, one side of this gasket body has a plurality of spacers that the interval set up, form the thick liquids runner between the adjacent spacer, and form the ceramic runner on each spacer respectively, and the ceramic runner includes sprue and the backward flow way that communicates with the sprue; one end of the main flow channel is provided with a ceramic feed inlet, the other end of the main flow channel extends to the end part of the separation sheet to form a ceramic discharge outlet, one end of the return flow channel is communicated with the main flow channel, and the other end of the return flow channel extends towards one side of the ceramic feed inlet and is provided with a return port. Coating gasket, through setting up the backward flow way with the sprue intercommunication, can make ceramic slurry and coating slurry beat the circulation in step to can effectively avoid appearing ceramic slurry in ceramic runner and subside, unfavorable phenomenon such as dry, and then can practice thrift because of ceramic runner granule mar, the artifical of blockking up and the waste of thick liquids that leads to.

Description

Coating gasket and coating die head

Technical Field

The utility model relates to a pole piece coating equipment technical field, in particular to coating gasket, simultaneously, the utility model discloses still relate to a coating die head that has this coating gasket.

Background

For the safety of the battery, the coating edge of the positive electrode is usually coated with a single-layer ceramic layer with a thickness of 25-50 um, and at present, the ceramic coating method mainly comprises two ways, namely a split type ceramic coating method and an integrated type ceramic coating method. Split type coating pottery easily adjusts ceramic position, nevertheless along with the coating trace fluctuation of rectifying in the coating process, causes the exsudation of pottery and material district or pottery and material district mutually soluble easily, and whole process is difficult to control. During integral type coating gasket, can appear pottery and the mutual soluble phenomenon in material district when facing two-sided coating, the process adjustment difficulty, moreover, beat the circulation in-process at the die head, the ceramic thick liquids of the inside ceramic runner of die head can not beat the circulation, very easily cause ceramic thick liquids to subside, solidify and block up ceramic pipe in that the runner is inside. The necessity of disassembling the die for cleaning once the pipe is plugged results in a great deal of labor, time and slurry waste.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a coating gasket, which can effectively prevent the occurrence of unfavorable phenomena such as ceramic slurry sedimentation and drying in a ceramic flow channel.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a coating gasket comprises a gasket body, wherein a plurality of separation sheets are arranged at intervals on one side of the gasket body, a slurry flow channel is formed between every two adjacent separation sheets, a ceramic flow channel is formed on each separation sheet, and each ceramic flow channel comprises a main flow channel and a return flow channel communicated with the main flow channel;

the ceramic material inlet is formed at one end of the main flow channel, the other end of the main flow channel extends to the end part of the partition sheet, a ceramic material outlet is formed at the other end of the main flow channel, one end of the return channel is communicated with the main flow channel, and the other end of the return channel extends towards one side of the ceramic material inlet and is provided with a return port.

Furthermore, the sprue with the position of return channel intercommunication is formed with first subsider, the return channel passes through first subsider with the sprue intercommunication, just the degree of depth of return channel is not less than the degree of depth of first subsider.

Furthermore, the depth of the return channel is between 0.6mm and 0.8 mm.

Furthermore, a second settling tank adjacent to the first settling tank is arranged in the main flow channel, the second settling tank is located on one side, close to the ceramic discharge port, of the first settling tank, and the depth of the second settling tank is smaller than that of the first settling tank.

Furthermore, the depth of the part of the main runner, which is positioned between the ceramic discharge port and the second settling tank, is smaller than that of the second settling tank, and the depth difference between the main runner and the second settling tank is 0.1mm-0.2mm.

Further, along being close to the direction of pottery discharge gate, the width of sprue sets up gradually for a short time.

Further, the ceramic flow channel on the partition sheet between two adjacent slurry flow channels is provided with two main flow channels which are oppositely arranged, and the return channel is positioned between the two main flow channels and is respectively communicated with the two main flow channels.

Furthermore, the part of the partition plate provided with the ceramic discharge port is convexly arranged to form an outer convex part, and the discharge port is arranged on the outer convex part.

Further, the protruding height of the outer convex part is equal to the thickness difference between the thickness of the single-sided slurry and the thickness of the single-sided ceramic.

Compared with the prior art, the utility model discloses following advantage has:

coating gasket, through setting up the backward flow way with the sprue intercommunication, can make ceramic thick liquids and coating thick liquids beat the circulation in step to can effectively avoid appearing ceramic thick liquids in ceramic runner and subside, unfavorable phenomena such as dry, and then can practice thrift because of ceramic runner granule mar, the artifical waste of thick liquids that the jam leads to.

In addition, the first settling tank is arranged, and the depth of the return channel is not less than that of the first settling tank, so that the particles can be favorably settled in the return channel, and the particles can be promoted to flow into the return channel. The second settling tank is arranged, so that the secondary settling effect on the particles in the ceramic slurry can be achieved. The depth of the part of the main runner between the ceramic discharge port and the second settling tank is smaller than that of the second settling tank, so that particles can be effectively prevented from flowing to the ceramic discharge port through the part.

In addition, along the direction that is close to the pottery discharge gate, the width of sprue diminishes the setting, is favorable to increasing ceramic discharge pressure. The return passage is located between the two main flow passages and is respectively communicated with the two main flow passages, so that the processing efficiency can be improved. Through locating the discharge gate on the evagination, be favorable to improving the uniformity between ceramic discharge gate and the thick liquids runner export. The protruding height of the outer convex part is equal to the thickness difference between the thickness of the single-sided slurry and the thickness of the single-sided ceramic, so that the consistency between the ceramic discharge port and the slurry runner outlet can be further improved.

Another object of the present invention is to provide a coating die head, wherein the coating gasket is applied to the coating die head.

Coating die head, through adopting as above coating gasket, can effectively avoid appearing ceramic thick liquids in ceramic runner and subside, unfavorable phenomenon such as dry to can improve the coating effect of this coating die head.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a coated gasket according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a protruding portion according to an embodiment of the present invention;

fig. 3 is another schematic structural diagram of the protruding portion according to the embodiment of the present invention;

fig. 4 is a schematic structural view of an intermediate separator according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of portion A of FIG. 4;

fig. 6 is a schematic structural view of an end separator according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a portion B in fig. 6.

Description of the reference numerals:

1. a gasket body;

101. an end separator; 102. a middle separator; 103. a main flow channel; 1031. a ceramic feed port; 1032. A ceramic discharge port; 1033. a first settling tank; 1034. a second settling tank; 104. a return channel; 1041. a return port; 105. a thinning region; 106. a slurry flow channel; 107. an outer protrusion.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same order, but are to be construed as referring to the same order.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be fixed, detachable, or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in conjunction with the specific situation for a person of ordinary skill in the art.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to a coating gasket, which comprises a gasket body 1, wherein one side of the gasket body 1 is provided with a plurality of separating sheets arranged at intervals, a slurry flow channel 106 is formed between every two adjacent separating sheets, ceramic flow channels are respectively formed on the separating sheets, and each ceramic flow channel comprises a main flow channel 103 and a return flow channel 104 communicated with the main flow channel 103.

Wherein, a ceramic feed inlet 1031 is formed at one end of the main flow passage 103, the other end extends to the end of the separation sheet, and a ceramic discharge outlet 1032 is formed, one end of the return flow passage 104 is communicated with the main flow passage 103, and the other end extends to one side of the ceramic feed inlet 1031 and is formed with a return port 1041.

The coating gasket of this embodiment through setting up the return channel 104 with sprue 103 intercommunication, can make ceramic thick liquids and coating thick liquids beat the circulation in step to can effectively avoid appearing ceramic thick liquids in ceramic runner and subside, unfavorable phenomena such as dry, and then can practice thrift because the artifical of ceramic runner granule mar, jam and lead to and the waste of thick liquids.

Based on the above overall structure, an exemplary structure of the coated gasket of the present embodiment is shown in fig. 1, and the separator of the present embodiment specifically includes two end portion separators 101 located at both ends of the gasket body 1, and three intermediate separators 102 located between the two end portion separators 101, and three slurry flow paths 106 are formed. In addition, as shown in fig. 1, the thinned region 105 is usually provided at both ends of the outlet of the slurry flow path 106 and at the position of the ceramic discharge port 1032, that is, the thickness of the region is smaller than that of the gasket body 1.

Of course, the number of the middle spacers 102 is not limited to three as shown in fig. 1, and the number thereof may be adjusted as appropriate. In addition, the shim body 1 generally has a mounting portion thereon for mounting on a coating die, not shown in fig. 1, which may specifically take the form of a mounting hole.

In addition, in order to improve the use effect, the outer protrusions 107 are formed by protruding the end portion spacers 101 and the middle spacer 102 where the ceramic discharge port 1032 is provided, and the ceramic discharge port 1032 is provided on the outer protrusions 107, so as to improve the consistency between the ceramic discharge port 1032 and the outlet of the slurry channel 106. As a preferred embodiment, the protruding height of the external convex portion 107 is equal to the thickness difference between the single-sided paste thickness and the single-sided ceramic thickness, so that the consistency between the ceramic discharge port 1032 and the outlet of the paste flow channel 106 can be effectively ensured to be improved.

The outward protruding portion 107 may be rectangular, trapezoidal in fig. 2, stepped trapezoidal in fig. 3, or other irregular shapes. In addition, and the coating effect is improved, as shown in fig. 1, the width of the main flow channel 103 is gradually reduced along the direction close to the ceramic discharge port 1032, which is beneficial to increasing the ceramic discharge pressure.

The structure of the ceramic flow channel on the intermediate separating sheet 102 of the present embodiment is described first, and referring to fig. 4 and 5, since the slurry flow channels 106 are respectively disposed on both sides of the intermediate separating sheet 102, the ceramic flow channel on the separating sheet (i.e., the intermediate separating sheet 102) between two adjacent slurry flow channels 106 has two primary flow channels 103 oppositely disposed. In addition, as shown in fig. 5, the outward protruding portions 107 on the middle separating plate 102 of the present embodiment are specifically rectangular, and due to the arrangement of the two primary flow channels 103, a concave portion is formed between the two outward protruding portions 107, and this structure effectively reduces the risk of the scraped foil breaking.

In this embodiment, for convenience of processing and manufacturing, the reflow channel 104 of the ceramic flow channel is located between the two main flow channels 103 and is respectively communicated with the two main flow channels 103. Further, as shown in fig. 1, the main channel 103 and the return channel 104 extend in the longitudinal direction of the gasket main body 1, but in the specific implementation, the extending direction of the main channel 103 and the return channel 104 is not limited to that shown in fig. 1. In addition to this structure, two return channels 104 may be provided, and the two return channels 104 may communicate with the two main channels 103 in one-to-one correspondence.

As also shown in fig. 4, in order to effectively prevent particles in the ceramic slurry from flowing out of the ceramic outlet 1032, a portion of the main channel 103 communicating with the return channel 104 is disposed near the ceramic outlet 1032. In a further embodiment, a first settling tank 1033 is formed at a portion where the main flow passage 103 communicates with the return flow passage 104, the return flow passage 104 communicates with the main flow passage 103 through the first settling tank 1033, and the depth of the return flow passage 104 is not less than the depth of the first settling tank 1033.

So set up, be favorable to the granule in the ceramic thick liquids to subside in first subsider 1033 back, further subside in return channel 104 to be convenient for the granule to flow back to the back flow of coating die head in, and then can effectively reduce the granule of following ceramic discharge gate 1032 outflow. At this time, in order to increase the flow rate of the ceramic slurry to the ceramic discharge port 1032, as shown in fig. 4, the return channel 104 of the present embodiment is disposed substantially parallel to the main channel 103, and a U-shaped channel is formed at a connection portion of the two, whereby the resistance of the ceramic slurry to flow to the return channel 104 can be increased.

The depth of the return channel 104 in this embodiment is between 0.6mm and 0.8mm, and may be set to 0.6mm, 0.7mm, 0.8mm, or other values, for example. In addition, the depth of the first settling tank 1033 of the present embodiment may be set to be the same as the depth of the return passage 104 for ease of manufacturing.

To further enhance the effect, as also shown in fig. 4, a second settling tank 1034 is disposed in the main flow passage 103 and is adjacent to the first settling tank 1033, and the second settling tank 1034 is located at a side of the first settling tank 1033 close to the ceramic discharge port 1032, and the depth of the second settling tank 1034 is smaller than that of the first settling tank 1033. By providing the second settling tank 1034, the particles in the ceramic slurry can be settled secondarily. The depth of the second settling tank 1034 may be set to 0.45mm to 0.65mm, and may be set to other values such as 0.45mm, 0.5mm, 0.55mm, 0.6mm, or 0.65mm, for example. And, preferably, the depth of the second settling tank 1034 is 0.1mm to 0.2mm deeper than the first settling tank 1033.

In addition, the depth of the main flow channel 103 between the ceramic discharge port 1032 and the second settling tank 1034 is smaller than that of the second settling tank 1034, and the difference in depth between the two is 0.1mm to 0.2mm, so as to effectively prevent the particles from flowing to the ceramic discharge port 1032. In addition, the depth of the part can be set to be 0.35mm-0.45 mm. In addition, the depth of other parts of the main flow passage 103 can also be set to be between 0.35mm and 0.45 mm.

The end portion separator 101 of the present embodiment has a structure as shown in fig. 6 and 7, and the entire structure thereof is the same as that of the intermediate separator 102 described above, except that the ceramic flow channels on the end portion separator 101 are different from those on the intermediate separator 102. As shown in fig. 6, the ceramic flow channel on the end separator 101 has only one primary flow channel 103 and one return flow channel 104. The main flow channel 103 and the return flow channel 104 extend in the longitudinal direction of the gasket main body 1, but in the specific implementation, the extending direction of the main flow channel 103 and the return flow channel 104 is not limited to that shown in fig. 1.

The coating gasket of this embodiment, through adopting above structure, not only can effectively avoid appearing unfavorable phenomena such as ceramic thick liquids subside, dry up in ceramic runner, also effectively improves the uniformity between ceramic discharge gate 1032 and the export of thick liquids runner 106 simultaneously.

Example two

This example relates to a coating die having a coating shim as described in example one applied thereto.

Coating die head, through adopting like embodiment one the coating gasket, can effectively avoid appearing ceramic thick liquids in ceramic runner and subside, unfavorable phenomenon such as dry to can improve the coating effect of this coating die head.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A coated gasket, characterized by:

the gasket comprises a gasket body (1), wherein a plurality of separation sheets are arranged at intervals on one side of the gasket body (1), a slurry flow channel (106) is formed between every two adjacent separation sheets, a ceramic flow channel is formed on each separation sheet, and each ceramic flow channel comprises a main flow channel (103) and a return flow channel (104) communicated with the main flow channel (103);

one end of the main flow channel (103) is formed with a ceramic feed opening (1031), the other end extends to the end of the separation sheet and is formed with a ceramic discharge opening (1032), one end of the return flow channel (104) is communicated with the main flow channel (103), and the other end extends to one side of the ceramic feed opening (1031) and is formed with a return opening (1041).

2. The coated gasket of claim 1 wherein:

the main runner (103) is formed with first settling basin (1033) with the position that return channel (104) communicate, return channel (104) pass through first settling basin (1033) with main runner (103) intercommunication, and the degree of depth of return channel (104) is not less than the degree of depth of first settling basin (1033).

3. The coated gasket of claim 2 wherein:

the depth of the return channel (104) is between 0.6mm and 0.8 mm.

4. The coated gasket of claim 2 wherein:

a second settling tank (1034) arranged adjacent to the first settling tank (1033) is arranged in the main flow channel (103), the second settling tank (1034) is positioned on one side, close to the ceramic discharge port (1032), of the first settling tank (1033), and the depth of the second settling tank (1034) is smaller than that of the first settling tank (1033).

5. The coated gasket of claim 4 wherein:

the depth of the part, located between the ceramic discharge port (1032) and the second settling tank (1034), of the main flow channel (103) is smaller than that of the second settling tank (1034), and the depth difference between the main flow channel and the second settling tank is 0.1-0.2 mm.

6. The coated gasket of claim 1 wherein:

along being close to ceramic discharge gate (1032)'s direction, the width of mainstream passageway (103) sets up gradually littlely.

7. The coated gasket of claim 1 wherein:

the ceramic flow channel on the separation sheet between two adjacent slurry flow channels (106) has two main flow channels (103) arranged oppositely, and the return flow channel (104) is located between the two main flow channels (103) and is respectively communicated with the two main flow channels (103).

8. The coated gasket of any of claims 1 to 7, wherein:

the part of the separating sheet provided with the ceramic discharge port (1032) is convexly arranged to form an outer convex part (107), and the discharge port is arranged on the outer convex part (107).

9. The coated gasket of claim 8 wherein:

the protruding height of the external convex part (107) is equal to the thickness difference between the thickness of the single-sided slurry and the thickness of the single-sided ceramic.

10. A coating die, characterized by: the coating die having applied therein a coating shim according to any one of claims 1 to 9.