CN213612390U - Die head gasket and coating machine for material coating - Google Patents
Die head gasket and coating machine for material coating Download PDFInfo
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- CN213612390U CN213612390U CN202022218237.0U CN202022218237U CN213612390U CN 213612390 U CN213612390 U CN 213612390U CN 202022218237 U CN202022218237 U CN 202022218237U CN 213612390 U CN213612390 U CN 213612390U
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- 239000000463 material Substances 0.000 title claims abstract description 124
- 238000000576 coating method Methods 0.000 title claims abstract description 111
- 239000011248 coating agent Substances 0.000 title claims abstract description 110
- 238000009826 distribution Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 239000002002 slurry Substances 0.000 description 20
- 239000000919 ceramic Substances 0.000 description 18
- 239000011267 electrode slurry Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000006256 anode slurry Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
本实用新型提供了一种物料涂布用模头垫片及涂布机，该物料涂布用模头垫片包括垫片主体，形成于垫片主体同一侧的第一物料涂布口和第二物料涂布口，形成于垫片主体上的连通于第一物料涂布口的第一流道，以及与第一流道彼此隔离的形成于垫片主体上的第二流道，第二流道连通于第二物料涂布口；其中，第一流道用以承接并输送第一物料，第二流道用以承接并输送第二物料。本实用新型所述的物料涂布用模头垫片，通过将第一流道和第二流道彼此隔离的形成在垫片主体上，能够使第一物料在流经第一流道后由第一物料涂布口排出，并使第二物料在流经第二流道后由第二物料涂布口流出，使得第一物料和第二物料在垫片主体上不发生混料，从而具有较好的涂布效果。
The utility model provides a die head gasket for material coating and a coating machine. The material coating die head gasket comprises a gasket body, a first material coating port and a second material coating port formed on the same side of the gasket body. Two material coating ports, a first flow channel formed on the gasket body and communicated with the first material coating port, and a second flow channel formed on the gasket body isolated from the first flow channel, the second flow channel It is connected to the second material coating port; wherein, the first flow channel is used for receiving and conveying the first material, and the second flow channel is used for receiving and conveying the second material. The die head gasket for material coating of the present invention is formed on the gasket body by isolating the first flow channel and the second flow channel from each other, so that the first material can pass through the first flow channel from the first The material coating port is discharged, and the second material flows out from the second material coating port after flowing through the second flow channel, so that the first material and the second material do not mix on the gasket body, so that the coating effect.
Description
Technical Field
The utility model relates to a power battery technical field, in particular to die head gasket for material coating. And simultaneously, the utility model discloses still relate to a coating machine of installing this die head gasket for material coating.
Background
In the prior art, in order to improve the use effect of the positive pole piece, the positive pole piece is usually coated with positive slurry and ceramic slurry, but because the gasket structure on the coating machine is unreasonable, the ceramic slurry is easy to mix with the positive slurry in the coating process, and the capacity of the pole piece is reduced when the mixed material is coated on the positive pole piece.
At present, in order to improve the mixing phenomenon of ceramic slurry and anode slurry in the coating production process, a blocking block is usually added in a buffer groove of a lower die head so as to be fully attached to the upper die head through a gasket, so that the anode slurry and the ceramic slurry cannot be mixed in a flow channel, and the purpose of preventing the mixing of the ceramic slurry and the anode slurry is achieved.
However, the method of preventing mixing by adding the block makes the block easily impacted by the positive slurry, and especially in the continuous coating production process, bubbles are easily generated, which causes poor coating on the surface of the pole piece. In addition, the continuous friction between the blocking blocks in the buffer grooves and the positive pole slurry also easily generates foreign matters, thereby influencing the safety performance of the pole piece.
In addition, the problem that the ceramic slurry and the anode slurry are easy to mix can be solved by replacing the die head in a split coating mode, but the popularization is limited to a certain extent due to the high cost of replacing the die head.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a die head gasket for material coating to prevent that first material and second material from taking place the compounding, and have better result of use.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a die shim for material coating comprising:
a gasket body;
the first material coating opening and the second material coating opening are formed on the same side of the gasket main body;
the first flow channel is formed on the gasket main body and communicated with the first material coating port to receive and convey a first material;
the second flow channel and the first flow channel are formed on the gasket main body in an isolated mode, and the second flow channel is communicated with the second material coating opening to receive and convey a second material.
Further, the first flow passage and the second flow passage are configured as groove-like channels formed on two opposite surfaces of the gasket body, respectively.
Further, in a top view projection of the gasket main body, the first flow channels and the second flow channels are distributed on the gasket main body in an avoiding manner.
Further, the first flow passage includes two first sub-flow passages formed in a mirror image form on an upper surface of the gasket body; the two first branch flow channels are arranged close to the length center line of the gasket main body and provided with flow channel trends arranged along the width direction of the gasket main body.
Further, two overflow passages are formed on the upper surface of the gasket main body, and the two overflow passages are arranged adjacent to the two first branch flow passages in a mirror image manner.
Further, the first flow passage comprises two second branch flow passages formed on the upper surface of the gasket main body in a mirror image manner; the two second branch flow passages are arranged close to the side where the first material coating port is located, and flow passage trends are arranged along the length direction of the gasket main body.
Furthermore, the depth of the first flow channel is 0.3 mm-0.5 mm.
Furthermore, the depth of the second flow channel is 0.6 mm-0.8 mm.
Further, the thickness of the gasket main body is 0.9 mm-1.1 mm.
Compared with the prior art, the utility model discloses following advantage has:
(1) die head gasket for material coating, through the formation of keeping apart first runner and second runner each other in the gasket main part, can make first material discharge by first material coating mouth after first runner flows through to make the second material flow by second material coating mouth after the second runner flows through, make first material and second material not take place the compounding in the gasket main part, thereby have better coating effect. The die head gasket for material coating can realize the distribution of the first material and the second material only by improving the die head gasket, and is favorable for reducing the cost input of equipment.
(2) The groove-shaped channel is adopted, so that the gasket body can be conveniently machined and formed, and the better conveying effect is achieved.
(3) The first flow channel and the second flow channel are arranged in an avoiding mode, the separation effect between the first flow channel and the second flow channel is improved, and the utilization rate of the gasket main body is effectively improved.
(4) The arrangement of the first shunt passage position can improve the coating effect of the first material on the pole piece, and is beneficial to improving the service performance of the pole piece.
(5) The redundant first materials can be discharged through the overflow channel, so that the coating effect is improved.
(6) Through setting up the second and dividing the runner, can further improve the coating effect of first material on the pole piece, and its simple structure, easily machine-shaping.
(7) The depth setting of first runner and second runner can improve the result of use of first runner and second runner under the demand that satisfies gasket main part use intensity.
(8) The thickness setting of gasket main part does benefit to the weight that reduces the product.
Another object of the present invention is to provide a coating machine, which has an upper die head and a lower die head, wherein a die head gasket for coating material is disposed between the upper die head and the lower die head.
Coating machine, through use this die head gasket for material coating on coating machine, compare the mode of changing the die head among the prior art, have the advantage that the cost is lower, and compare in the mode that sets up the sprue in the dashpot, have better stability in use.
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 front view of a material coating die shim according to a first embodiment of the present invention;
FIG. 2 is a top view of a material coating die shim according to a first embodiment of the present invention;
fig. 3 is a bottom view of a material coating die shim according to a first embodiment of the present invention;
description of reference numerals:
1. a gasket body; 11. a second branch flow channel; 111. a first material coating port; 12. a first shunt passage; 13. positioning holes; 14. a through hole; 15. mounting holes; 16. an overflow channel; 17. a second flow passage; 171. a second material coating port; 18. and (4) protruding.
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", "back", 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 item, but are instead intended to cover the same item.
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 die head gasket for material coating, which comprises a gasket main body, wherein a first material coating opening and a second material coating opening are formed on the same side of the gasket main body, a first flow channel communicated with the first material coating opening and a second flow channel which is isolated from the first flow channel and formed on the gasket main body are formed on the gasket main body, and the second flow channel is communicated with the second material coating opening. The first flow channel is used for receiving and conveying a first material, and the second flow channel is used for receiving and conveying a second material.
The die shim for material coating in this embodiment may be a die shim for coating the positive electrode plate, which is fixedly sandwiched between the upper die and the lower die to transport the first material flowed in from the upper die to the first material coating opening via the first flow channel and transport the second material flowed in from the lower die to the second material coating opening via the second flow channel. The first material is a ceramic slurry and the second material is a positive electrode slurry. Of course, the composition of the first and second materials may be adaptively adjusted according to specific coating requirements.
Based on the overall design, an exemplary structure of the material coating die shim in this embodiment is shown in fig. 1 to 2, in which the shim body 1 is rectangular as a whole, and the first material coating opening 111 and the second material coating opening 171 are both disposed on one side of the shim body 1 in the width direction. Here, the shape of the gasket body 1 is adapted to the upper and lower dies of the coating machine, and the first material application port 111 and the second material application port 171 are also provided to facilitate the application of the ceramic slurry and the positive electrode slurry on the positive electrode sheet.
In order to facilitate the installation of the gasket body 1 on the upper die head and the lower die head of the coating machine, in the present embodiment, with respect to the first material application port 111 and the second material application port 171, the protrusions 18 are respectively configured at both ends of the other side of the gasket body 1, and a plurality of installation holes 15 are formed at intervals on the gasket body 1 between the two protrusions 18, and positioning holes 13 for positioning the gasket body 1 on the coating machine are provided at both ends of the gasket body 1. The arrangement of the protrusions 18 facilitates the installation of the gasket body 1 by hand, and the installation holes 15 and the positioning holes 13 facilitate the fixation and clamping of the gasket body 1 between the upper die head and the lower die head by means of fasteners.
The first and second flow channels 17 in this embodiment are configured as groove-like channels formed on the two opposite surfaces of the gasket body 1, respectively, and are arranged so as to facilitate not only the separation of the first and second flow channels 17 but also the machining. In the plan view projection of the gasket main body 1, the first flow channel and the second flow channel 17 are distributed on the gasket main body 1 in a mutually avoiding manner, so that the space utilization rate of the gasket main body 1 is improved.
As shown in fig. 2, the first flow channel in this embodiment includes two first sub flow channels 12 formed on the upper surface of the gasket main body 1 in a mirror image manner, and the two first sub flow channels 12 are disposed near the center line of the length of the gasket main body 1 and have flow channel directions arranged in the width direction of the gasket main body 1. Here, the two first shunt canals 12 extend to one side of the gasket main body 1, thereby forming the first material application opening 111 described above.
In addition, in this embodiment, corners are formed at both ends of the two first sub-channels 12, so that the ceramic slurry flowing into the feeding end of the first sub-channel 12 flows from outside to inside along the length direction of the gasket main body 1, then flows along the width direction of the gasket main body 1, flows from inside to outside along the length direction of the gasket main body 1, and finally flows along the width direction of the gasket main body 1 and flows out through the two first material applying openings 111. In addition, the sectional areas of the two first shunt canals 12 close to the first material coating opening 111 are smaller than the sectional areas of the first shunt canals 12 arranged along the width direction of the gasket main body 1, so that the coating effect of the ceramic slurry on the positive electrode plate is improved. In which the ceramic slurry flows in the first subchannel 12 in the direction indicated by the arrow in fig. 2.
Continuing with reference to figure 2. The first flow channel in this embodiment includes two second branch flow channels 11 formed in a mirror image form on the upper surface of the gasket main body 1; the two second branch runners 11 are disposed near the side where the first material coating opening 111 is located, and have a runner trend arranged along the length direction of the gasket main body 1. The two second shunt canals 11 extend to one side of the gasket main body 1 having the first material coating openings 111, and two new first material coating openings 111 are formed, so that there are four first material coating openings 111 on the gasket main body 1.
In addition, corners are arranged at two ends of the two second branch flow channels 11, so that the ceramic slurry flows from the feeding end of the second branch flow channel 11 along the width direction of the gasket main body 1, then flows from outside to inside along the length direction of the gasket main body 1, finally flows along the width direction of the gasket main body 1, and flows out through the two corresponding first material coating ports 111. Here, the sectional areas of the two second shunt canals 11 close to the first material coating port 111 are smaller than the sectional areas of the second shunt canals 11 arranged in the width direction of the gasket main body 1, so as to improve the coating effect of the ceramic slurry on the positive electrode sheet.
With continued reference to fig. 2, in the present embodiment, two overflow passages 16 are formed on the upper surface of the gasket main body 1, and the two overflow passages 16 are arranged adjacent to the two first sub-flow passages 12 in a mirror image arrangement. Wherein, one end of the two overflow passages 16 is obliquely arranged towards the direction far away from the first material coating opening 111, so that the two overflow passages 16 are inverted 'eight', and the discharge openings of the two overflow passages 16 are arranged on the gasket main body 1 opposite to the first material coating opening 111. With this arrangement, when a large amount of ceramic slurry flows into the upper die, the excessive ceramic slurry flows into the two overflow channels 16 through the gap between the gasket main body 1 and the upper die, and is discharged out of the gasket main body 1 through the two overflow channels 16, so that the normal use of the first material coating port 111 is not affected.
In this embodiment, as shown in fig. 3, the bottom view of the gasket main body 1 is that, the two second flow passages 17 are formed on the lower surface of the gasket main body 1 in a mirror image manner, the two second flow passages extend to the side of the gasket main body 1 having the first material application opening 111, and two second material application openings 171 are formed. In order to avoid the two first branch channels 12 and the two second branch channels 11, the second channel 17 in this embodiment has a horizontal "L" shape, so that the positive electrode slurry flowing into the lower die head flows out through the two second material application ports 171. In addition, the second material application opening 171 is in a long strip shape, and the four first material application openings 111 are respectively and symmetrically arranged on two sides of the second material application opening 171.
In the present embodiment, the thickness of the gasket body 1 is 0.9mm to 1.1mm, and if the thickness of the gasket body 1 is 1mm, the depth of the first flow channel is 0.3mm to 0.5mm, and preferably, the depth of the first flow channel may be 0.4 mm. The depth of the second flow channel 17 is 0.6mm to 0.8mm, and preferably the depth of the second flow channel 17 is 0.7 mm. Here, the thickness setting of gasket main part 1 does benefit to the weight that reduces the product under the prerequisite that satisfies first runner and second runner 17 and use. The arrangement of the depth of the first flow channel and the depth of the second flow channel 17 can improve the use effect of the first flow channel and the second flow channel 17 under the condition of meeting the requirement of the use strength of the gasket main body 1
In the die head gasket for material coating described in this embodiment, the first flow channel and the second flow channel 17 are formed on the gasket main body 1 in a manner of being isolated from each other, so that the first material is discharged from the first material coating opening 111 after flowing through the first flow channel, and the second material flows out from the second material coating opening 171 after flowing through the second flow channel 17, so that the first material and the second material are not mixed on the gasket main body 1, and a good coating effect is achieved. In addition, by applying the die head gasket for material coating on the coating machine, compared with the mode of replacing the die head in the prior art, the cost is lower.
Example two
This example relates to a coater having an upper die and a lower die, with a die pad for material application as described in example one disposed between the upper die and the lower die. Among them, the upper die and the lower die in the present embodiment may employ products well known in the art, and are disclosed in, for example, patent document No. CN 205253457U entitled coating apparatus. The lower surface of the upper die head is in a plane shape matched with the upper surface of the gasket main body 1, four ceramic tubes are arranged on the upper die head corresponding to the feeding ends of the two first sub-runners 12 and the two second sub-runners 11, and ceramic slurry flows into the first runner through the ceramic tubes and flows to the first material coating opening 111 through a cavity formed by the first runner and the lower surface of the upper die head.
The upper surface of die head down is the plane that sets up with the lower surface cooperation of gasket main part 1, and is equipped with the dashpot that extends to arrange along the length direction of die head down on the upper surface of die head down, and the dashpot includes two of the width direction interval arrangement along the die head down. Wherein, the dashpot that keeps away from first material coating mouth 111 and set up is linked together with the inlet pipe on the lower die head, and the cross sectional area of this dashpot is greater than the cross sectional area of another dashpot to reduce the flow velocity of anodal thick liquids, thereby be convenient for coat the pole piece. The positive electrode slurry flows into the two buffer grooves through the feeding pipe on the lower die, and then flows to the second material coating port 171 through the communication between the two buffer grooves and the second flow channel 17.
In addition, in the present embodiment, as shown in fig. 2 and 3, through holes 14 penetrating through the second flow channel 17 are respectively provided at both ends of the gasket body 1, and a discharge pipe is provided on the upper die corresponding to each through hole 14, and before the coating operation of the coating machine, the positive electrode slurry is introduced through the feed pipe of the lower die, and the positive electrode slurry flows out through the through holes 14 and the discharge pipe to discharge the gas in the pipe, thereby improving the coating effect of the coating machine in use.
The coating machine described in this embodiment can separate the upper die head and the lower die head by using the die head gasket for coating the material in the first embodiment, thereby effectively preventing the first material flowing into the upper die head and the second material flowing into the lower die head from being mixed on the gasket main body 1, and facilitating the improvement of the coating effect on the pole piece. Compared with the mode of replacing the die head in the prior art, the die head has the advantage of lower cost, and compared with the mode of arranging the blocking block in the buffer groove, the die head has better use stability.
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 (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022218237.0U CN213612390U (en) | 2020-09-30 | 2020-09-30 | Die head gasket and coating machine for material coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022218237.0U CN213612390U (en) | 2020-09-30 | 2020-09-30 | Die head gasket and coating machine for material coating |
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| Publication Number | Publication Date |
|---|---|
| CN213612390U true CN213612390U (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022218237.0U Active CN213612390U (en) | 2020-09-30 | 2020-09-30 | Die head gasket and coating machine for material coating |
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| CN (1) | CN213612390U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115672655A (en) * | 2021-07-30 | 2023-02-03 | 宁德时代新能源科技股份有限公司 | Coating pad and coating apparatus |
| WO2023136567A1 (en) * | 2022-01-11 | 2023-07-20 | 주식회사 엘지에너지솔루션 | Die coater for coating secondary battery current collector with active material |
| WO2023136568A1 (en) * | 2022-01-11 | 2023-07-20 | 주식회사 엘지에너지솔루션 | Die coater for coating active material of secondary battery current collector |
-
2020
- 2020-09-30 CN CN202022218237.0U patent/CN213612390U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115672655A (en) * | 2021-07-30 | 2023-02-03 | 宁德时代新能源科技股份有限公司 | Coating pad and coating apparatus |
| CN115672655B (en) * | 2021-07-30 | 2024-03-19 | 宁德时代新能源科技股份有限公司 | Coating gasket and coating equipment |
| US11975355B2 (en) | 2021-07-30 | 2024-05-07 | Contemporary Amperex Technology Co., Limited | Coating shim and coating device |
| WO2023136567A1 (en) * | 2022-01-11 | 2023-07-20 | 주식회사 엘지에너지솔루션 | Die coater for coating secondary battery current collector with active material |
| WO2023136568A1 (en) * | 2022-01-11 | 2023-07-20 | 주식회사 엘지에너지솔루션 | Die coater for coating active material of secondary battery current collector |
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Address after: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: SVOLT Energy Technology Co.,Ltd. Country or region after: China Address before: No.8899 Xincheng Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: SVOLT Energy Technology Co.,Ltd. Country or region before: China |
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