CN219334794U - Double-sided disposable coating and drying equipment for lithium battery pole piece - Google Patents
Double-sided disposable coating and drying equipment for lithium battery pole piece Download PDFInfo
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- CN219334794U CN219334794U CN202223096668.XU CN202220096668U CN219334794U CN 219334794 U CN219334794 U CN 219334794U CN 202220096668 U CN202220096668 U CN 202220096668U CN 219334794 U CN219334794 U CN 219334794U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a double-sided disposable coating and drying device for a lithium battery pole piece, which comprises a first side coating device, a second side coating device and a drying device, wherein the first side coating device, the second side coating device and the drying device are sequentially arranged along the conveying path of the lithium battery pole piece; the second surface coating device comprises a vacuum suction roller and a second coating head, and the second coating head is arranged outside the vacuum suction roller. The utility model is used for coating and drying the two surfaces of the lithium battery pole piece at one time, and is convenient for coating and drying the lithium battery pole piece.
Description
Technical Field
The utility model relates to the technical field of lithium battery production and processing equipment, in particular to double-sided disposable coating and drying equipment for a lithium battery pole piece.
Background
Lithium batteries are often used as a power source of electric devices such as electric automobiles, and with the wide popularization and application of electric devices such as new energy automobiles, the lithium batteries are widely applied, so that the requirements of the lithium batteries are increased, and the production efficiency requirements of the lithium batteries are also increased. The lithium battery comprises a pole piece, electrolyte, a shell, an electrode and the like, wherein the pole piece is an important component of the lithium battery, the pole piece of the lithium battery comprises a foil and coatings coated on two sides, the coatings coated on two sides of the pole piece of the lithium battery at present are generally coated on one side and dried on the other side in a twice-coating and twice-baking mode, the pole piece is required to be folded back for second coating and drying after being dried for the first time in the production mode, or the two groups of ovens are arranged for respectively coating the coatings on the two sides of the pole piece, the production modes are low in efficiency, more in components of the coating and drying equipment of the pole piece of the lithium battery, large in occupied factory space and inconvenient in coating and drying production of the pole piece of the lithium battery. The equipment for coating and drying two sides of the lithium battery pole piece at one time is also arranged at present, but the equipment needs to pre-dry after coating each side of the lithium battery pole piece is finished, and finally one side of the equipment is completely dried, the drying mode is actually equivalent to three times of drying, three groups of drying devices are needed, and the technical problems that the components of the lithium battery pole piece coating and drying equipment are more, the occupied factory space is large and the coating and drying production of the lithium battery pole piece is inconvenient also exist, for example, in the patent document 202120077273.1, the equipment for coating and drying the two sides of the lithium battery pole piece is just pre-dried after coating each side of the lithium battery pole piece is finished, and finally the pole piece coating and drying are performed in a complete drying mode, so that the technical problems that the components of the lithium battery pole piece coating and drying equipment are more, the occupied factory space is large and the coating and drying production of the lithium battery pole piece is inconvenient exist.
Disclosure of Invention
The utility model provides a double-sided disposable coating and drying device for a lithium battery pole piece, which aims at solving the technical problems that in the prior art, the components of the coating and drying device for the lithium battery pole piece are more, the occupied factory space is large, and the coating and drying production of the lithium battery pole piece is inconvenient.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the double-sided disposable coating and drying equipment for the lithium battery pole piece comprises a first surface coating device, a second surface coating device and a drying device, wherein the first surface coating device, the second surface coating device and the drying device are sequentially arranged along the conveying path of the lithium battery pole piece; the second surface coating device comprises a vacuum suction roller and a second coating head, and the second coating head is arranged outside the vacuum suction roller.
Further, the vacuum suction roll comprises a middle avoidance part and an outer support part, wherein the middle avoidance part and the outer support part are coaxially arranged, the outer support part is arranged on two sides of the middle avoidance part, and the outer diameter of the middle avoidance part is smaller than that of the outer support part.
Further, the outer side supporting part is provided with a negative pressure adsorption hole.
Further, the vacuum suction roller further comprises a supporting roller shaft, and the middle avoidance part and the outer side supporting part are both rotatably arranged on the supporting roller shaft.
Further, the vacuum suction roll further comprises a negative pressure connecting pipe, the negative pressure connecting pipe is connected to the end part of the support roll shaft, the support roll shaft is of a hollow structure, and the negative pressure connecting pipe is communicated with the negative pressure adsorption hole through the space inside the support roll shaft.
Further, the vacuum suction roller further comprises a synchronous pulley, wherein the synchronous pulley is arranged on the outer side of the outer side supporting part, and the synchronous pulley drives the middle avoidance part and the outer side supporting part to rotate around the supporting roller shaft.
Further, the first surface coating device comprises a conveying roller and a first coating head, and the first coating head is arranged outside the conveying roller; the conveying roller is of a straight roller structure.
Further, still include unreeling device, coiling mechanism, cross roller and compression roller, unreeling device sets up in first face coating device anterior segment, the coiling mechanism sets up in drying device rear end, cross the roller setting in unreeling device and first face coating device, between first face coating device and the second face coating device and the position between drying device and the coiling mechanism, the compression roller sets up in conveying roller and vacuum suction roller periphery.
Further, the device also comprises a steering roller, wherein the steering roller is fixedly arranged between the second surface coating device and the drying device; the end part of the steering roller is connected with a high-pressure connecting air pipe, the steering roller is provided with a high-pressure air blowing hole, and the high-pressure connecting air pipe is communicated with the high-pressure air blowing hole; the high pressure blowholes are distributed over a ninety degree fan-shaped range on the turning roll.
Further, drying device includes oven box, goes up blowing mouth and lower blowing mouth, go up blowing mouth and lower blowing mouth and set up respectively in the oven box lithium cell pole piece conveying path's both sides, and go up blowing mouth and lower blowing mouth dislocation set.
The beneficial effects achieved by the utility model are mainly as follows: the lithium battery pole piece double-sided disposable coating and drying equipment comprises a first side coating device, a second side coating device and a drying device which are sequentially arranged on a line of a lithium battery pole piece conveying path, the first side coating slurry, the second side coating slurry and the drying of two side coating slurries are sequentially completed, the lithium battery pole piece is directly dried once again after the coating is completed on the two sides, the lithium battery pole piece is not required to be pre-dried or dried after the coating is completed on one side, the coating and the drying of the other side are not required to be performed after the coating and the drying are not required to be completed, and only one drying device is required to be arranged, so that the structure of the lithium battery pole piece coating and drying equipment is simplified, the occupied factory space of the lithium battery pole piece coating and drying equipment is small, the coating and drying production of the lithium battery pole piece is convenient, and the coating and the drying of the lithium battery pole piece is more stable and reliable.
Drawings
Fig. 1 is a schematic structural diagram of an unreeling device, a first surface coating device, a second surface coating device, a steering roller, a drying device, a reeling device, a passing roller and a compression roller of a double-sided disposable coating and drying device for a lithium battery pole piece in an embodiment of the utility model;
fig. 2 is a schematic structural diagram of a vacuum suction roller of a lithium battery pole piece double-sided disposable coating and drying device in an embodiment of the utility model;
fig. 3 is a schematic structural view of a steering roller of a double-sided disposable coating and drying device for a lithium battery pole piece in an embodiment of the utility model;
fig. 4 is a schematic structural diagram of a pole piece coated and dried by a double-sided disposable coating and drying device for a lithium battery pole piece in an embodiment of the utility model.
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar components; the terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present patent.
Detailed Description
The present utility model will be described in further detail below with reference to the drawings and examples for the understanding of those skilled in the art.
Example 1
Referring to fig. 1, 2 and 4, a double-sided disposable coating and drying device for a lithium battery pole piece is used for finishing coating and drying of two sides of the lithium battery pole piece at one time, and is convenient for coating and drying the lithium battery pole piece. The lithium battery pole piece double-sided disposable coating and drying equipment comprises a first side coating device 1, a second side coating device 2 and a drying device 3, wherein the first side coating device 1, the second side coating device 2 and the drying device 3 are sequentially arranged along the conveying path of the lithium battery pole piece, the first side coating slurry, the second side coating slurry and the first drying of the two side coating slurries of the lithium battery pole piece 9 are sequentially completed, the lithium battery pole piece 9 is directly dried once again after coating is completed on the two sides, the pre-drying or drying after one side coating is not required, the coating and drying of the other side are not required to be completed after one side coating and drying are performed, and only one drying device is required to be arranged, so that the structure of the lithium battery pole piece coating and drying equipment is simplified, the occupied factory space of the lithium battery pole piece coating and drying equipment is small, the coating and drying production of the lithium battery pole piece is convenient, and the lithium battery pole piece is more stable and reliable during the coating and drying of the lithium battery pole piece is enabled.
Referring to fig. 1, 2 and 4, the second surface coating device 2 includes a vacuum suction roller 21 and a second coating head 22, the second coating head 22 is disposed outside the vacuum suction roller 21, the vacuum suction roller 21 is used for conveying and supporting the lithium battery pole piece 9 to be coated, and the second coating head 22 coats the slurry on the lithium battery pole piece 9 to be coated, so as to complete the coating of the second surface of the lithium battery pole piece 9.
Referring to fig. 1, 2 and 4, the vacuum suction roll 21 includes a middle avoidance portion 211 and an outer support portion 212, the middle avoidance portion 211 and the outer support portion 212 are coaxially disposed, the outer support portion 212 is disposed on two sides of the middle avoidance portion 211, and the outer diameter of the middle avoidance portion 211 is smaller than that of the outer support portion 212, that is, two sides of the vacuum suction roll 21 are raised outer support portions 212, and the middle is a recessed avoidance portion 211. Thereby the both sides of lithium cell pole piece 9 are left blank district 92 and can be supported on both sides convex outside supporting part 212 to the middle part coating district 91 of lithium cell pole piece 9 dodges through concave dodging portion 211, avoids just coating the first face and does not have the lithium cell pole piece 9 middle part coating district 91 of stoving and contact vacuum suction and move roller 21 surface and damage, thereby improves the coating precision of lithium cell pole piece 9, improves the yields of lithium cell pole piece 9 production.
Referring to fig. 2, in order to make the conveying and supporting of the lithium battery pole piece 9 on the outer supporting portion 212 more stable, the outer supporting portion 212 is provided with a negative pressure adsorption hole 216, and the lithium battery pole piece 9 can be stably adsorbed and fixed by the negative pressure generated by the negative pressure adsorption hole 216 when conveyed and supported on the outer supporting portion 212, so that the second coating head 22 is coated more accurately and uniformly when coating the slurry, and the yield of the production of the lithium battery pole piece 9 is further improved. The negative pressure adsorption holes 216 are fully distributed on the outer support portion 212 for a circle, so that the lithium battery pole piece 9 can be continuously adsorbed and fixed through the negative pressure adsorption holes 216 on the outer support portion 212 when the vacuum suction and transfer roller 21 rotates, and the support and the conveying of the lithium battery pole piece 9 are more stable.
Referring to fig. 2, the vacuum suction roller 21 further includes a support roller shaft 213, and the middle avoidance portion 211 and the outer support portion 212 are rotatably disposed on the support roller shaft 213, so that the middle avoidance portion 211 and the outer support portion 212 can rotate to convey the lithium battery pole piece 9. The support roller shaft 213 is fixedly arranged, the middle avoidance portion 211 and the outer side support portion 212 rotate around the support roller shaft 213, and the middle avoidance portion 211 and the outer side support portion 212 can be mounted on the support roller shaft 213 through bearings.
Referring to fig. 2, the vacuum suction roller 21 further includes a negative pressure connection pipe 214, the negative pressure connection pipe 214 is connected to an end of the support roller shaft 213, the support roller shaft 213 is configured as a hollow structure, the negative pressure connection pipe 214 is communicated with the negative pressure adsorption hole 216 through a space inside the support roller shaft 213, and the negative pressure connection pipe 214 is connected with a negative pressure generating mechanism such as an external negative pressure pump, so that a negative pressure can be generated at the negative pressure adsorption hole 216 to adsorb and fix the lithium battery pole piece 9. The inside of the outer support 212 is also hollow, and is communicated with the hollow structure of the support roller shaft 213, and is further communicated with the negative pressure suction hole 216 and the negative pressure connection pipe 214. A sealing member such as a sealing gasket is preferably provided between the outer support 212 and the support roller shaft 213 so that the outer support 212 and the support roller shaft 213 are rotatably coupled while maintaining a sealed state.
Referring to fig. 2, the vacuum suction roller 21 further includes a synchronous pulley 215, where the synchronous pulley 215 is disposed at the outer side of the outer side supporting portion 212, and the synchronous pulley 215 can drive the middle avoidance portion 211 and the outer side supporting portion 212 to rotate around the supporting roller shaft 213, so as to convey the lithium battery pole piece 9 to move forward. The timing pulley 215 is connected to the timing pulley on the motor shaft by a timing belt, so that the middle escape portion 211 and the outer support portion 212 can be driven to rotate around the support roller shaft 213 by an external motor.
Referring to fig. 1, the first surface coating device 1 includes a conveying roller 11 and a first coating head 12, and the first coating head 12 is disposed outside the conveying roller 11, so that the lithium battery pole piece 9 can be supported and conveyed by the conveying roller 11, and the first surface of the lithium battery pole piece 9 is coated by the first coating head 12. The conveying roller 11 is of a straight roller structure, and is supported below the whole areas of the middle coating area 91 and the two side blank areas 92 of the lithium battery pole piece 9 through the straight roller structure, so that the lithium battery pole piece 9 can be stably supported and conveyed. The first and second coating heads 12 and 22 are disposed at opposite sides of the transport path of the lithium battery pole-pieces 9, so that the slurry can be coated to the first and second faces of the lithium battery pole-pieces 9 through the first and second coating heads 12 and 22, respectively. The first and second coating heads 12, 22 may employ a pole piece slurry coating configuration commonly used in the art.
Referring to fig. 1, the drying device for the double-sided disposable coating of the lithium battery pole piece further comprises an unreeling device 4, a reeling device 5, a passing roller 6 and a pressing roller 7, wherein the unreeling device 4 is arranged at the front section of the first surface coating device 1, and the lithium battery pole piece 9 to be coated with the sizing agent is unreeled. The unreeling device 4 may be a conventional unreeling device such as a freely rotating unreeling roller. The winding device 5 is arranged at the rear section of the drying device 3 and is used for winding the lithium battery pole piece 9 with two sides coated with slurry and dried. The winding device 5 may be a conventional winding device, for example, a winding roller driven to rotate by a motor. The pass roller 6 is arranged at the positions among the unreeling device 4, the first surface coating device 1, the second surface coating device 2 and the drying device 3 and the reeling device 5, so that the lithium battery pole piece 9 is supported in the conveying process of the lithium battery pole piece 9, and the turning of the lithium battery pole piece 9 is facilitated. The press roller 7 is arranged on the peripheries of the conveying roller 11 and the vacuum suction roller 21, and the lithium battery pole piece 9 is pressed and fixed on the conveying roller 11 and the vacuum suction roller 21 through the press roller 7, so that the lithium battery pole piece 9 is more stable when being coated with slurry, and the coating precision of the lithium battery pole piece 9 is improved. The press roller 7 can adopt rollers with large outer diameters at two sides and small outer diameters at the middle part, so that the white areas 92 are reserved at two sides of the lithium battery pole piece 9 through protruding parts at two sides.
Referring to fig. 1, 2 and 4, when the double-sided disposable coating and drying device for lithium battery pole pieces of the embodiment works, the lithium battery pole pieces 9 to be coated are unreeled through the unreeling device 4, the lithium battery pole pieces 9 sequentially pass through the first surface coating device 1, the second surface coating device 2 and the drying device 3, and finally are reeled through the reeling device 5; the first surface coating device 1 is supported on the second surface of the lithium battery pole piece 9 through a conveying roller 11, and the slurry is coated on a middle coating area 91 of the first surface of the lithium battery pole piece 9 through a first coating head 12; at the second surface coating device 2, the two side blank areas 92 of the first surface of the lithium battery pole piece 9 are supported and fixed through the outer side supporting part 212, slurry coated by the middle coating area 91 of the first surface of the lithium battery pole piece 9 is avoided through the middle avoiding part 211, and the slurry is coated to the middle coating area 91 of the second surface of the lithium battery pole piece 9 through the second coating head 22; the middle coating areas 91 of the first surface and the second surface of the lithium battery pole piece 9 are coated with the sizing agent and then enter the drying device 3, and the sizing agent coated on the first surface and the second surface of the lithium battery pole piece 9 is dried through the drying device 3; and finally, winding and storing the coating slurry through a winding device 5 and drying the lithium battery pole piece 9. The lithium battery pole piece 9 which is coated with the sizing agent and dried can be cut off to form two side blank areas 92 for use in the middle coating area 91.
Example two
Referring to fig. 1 to 4, the whole lithium battery pole piece double-sided disposable coating and drying device of the present embodiment is the same as that of the first embodiment, and a turning roller 8 is provided on the basis of the first embodiment, and the lithium battery pole piece 9 with double-sided coating is turned to a horizontal state by the turning roller 8, so that the lithium battery pole piece 9 can enter the drying device 3 horizontally for drying. This embodiment is the same as the first embodiment in that reference is made to the first embodiment, and the improvement will be further described below.
Referring to fig. 1 and 3, the turning roll 8 is fixedly disposed between the second surface coating device 2 and the drying device 3. The steering roller 8 is of a hollow structure, a high-pressure connecting air pipe 81 is connected to the end part of the steering roller 8, a high-pressure air blowing hole 82 is formed in the steering roller 8, the high-pressure connecting air pipe 81 is communicated with the high-pressure air blowing hole 82 through the hollow structure of the steering roller 8, the high-pressure connecting air pipe 81 is communicated with an external high-pressure air pump, so that the external high-pressure air pump conveys high-pressure air to the high-pressure air blowing hole 82 on the steering roller 8, and the high-pressure air is blown out through the high-pressure air blowing hole 82 to enable the lithium battery pole piece 9 to suspend outside the steering roller 8 when passing through the steering roller 8, and damage to a slurry layer which is not dried yet due to contact between the lithium battery pole piece 9 after slurry coating and the steering roller 8 is avoided.
Referring to fig. 1 and 3, the high-pressure air blowing holes 82 are preferably uniformly distributed in a ninety-degree fan-shaped range on the turning roll 8, so that the lithium battery pole piece 9 is just suspended above the left side of the turning roll 8 by blowing through the high-pressure air blowing holes 82 in the ninety-degree fan-shaped range, and the lithium battery pole piece 9 is turned from a vertical state to a horizontal state.
Referring to fig. 1 to 4, when the double-sided disposable coating and drying device for lithium battery pole pieces of the embodiment works, the lithium battery pole pieces 9 to be coated are unreeled through the unreeling device 4, and the lithium battery pole pieces 9 sequentially pass through the first surface coating device 1, the second surface coating device 2, the steering roller 8 and the drying device 3 and finally are reeled through the reeling device 5; the first surface coating device 1 is supported on the second surface of the lithium battery pole piece 9 through a conveying roller 11, and the slurry is coated on a middle coating area 91 of the first surface of the lithium battery pole piece 9 through a first coating head 12; at the second surface coating device 2, the two side blank areas 92 of the first surface of the lithium battery pole piece 9 are supported and fixed through the outer side supporting part 212, slurry coated by the middle coating area 91 of the first surface of the lithium battery pole piece 9 is avoided through the middle avoiding part 211, and the slurry is coated to the middle coating area 91 of the second surface of the lithium battery pole piece 9 through the second coating head 22; the middle coating areas 91 of the first surface and the second surface of the lithium battery pole piece 9 are coated with the sizing agent and then enter the drying device 3, and the sizing agent coated on the first surface and the second surface of the lithium battery pole piece 9 is dried through the drying device 3; and finally, winding and storing the coating slurry through a winding device 5 and drying the lithium battery pole piece 9. The lithium battery pole piece 9 is in a vertical state after passing through the second surface coating device 2, the lithium battery pole piece 9 in the vertical state is turned to be in a horizontal state by 90 degrees through the turning roller 8, and the lithium battery pole piece 9 enters the drying device 3 in the horizontal state to facilitate the drying treatment of the drying device 3. The lithium battery pole piece 9 which is coated with the sizing agent and dried can be cut off to form two side blank areas 92 for use in the middle coating area 91.
Example III
Referring to fig. 1 to 4, the whole lithium battery pole piece double-sided disposable coating and drying equipment of the embodiment is the same as that of the second embodiment, and the structure of the drying device 3 is improved on the basis of the second embodiment, so that the drying of the lithium battery pole piece 9 with slurry on both sides is realized. The present embodiment is the same as the second embodiment in that the second embodiment is referred to, and the improvement will be further described below.
Referring to fig. 1, the drying device 3 includes a drying oven 31, an upper blowing nozzle 32 and a lower blowing nozzle 33, the drying oven 31 is a tunnel type box with left and right openings, the lithium battery pole piece 9 enters the box from the opening on the left side of the drying oven 31, and after drying, the lithium battery pole piece enters the box from the opening on the right side of the drying oven 31 and exits the drying oven 31. The upper air blowing nozzle 32 and the lower air blowing nozzle 33 are respectively arranged at two sides of the lithium battery pole piece conveying path in the oven box body 31, and the upper air blowing nozzle 32 and the lower air blowing nozzle 33 are arranged in a staggered manner. The upper blowing nozzle 32 and the lower blowing nozzle 33 are communicated with a high-pressure air pump, the lithium battery pole piece 9 coated with the sizing agent is suspended in the oven box 31 by blowing through the upper blowing nozzle 32 and the lower blowing nozzle 33, and sizing agents on two sides of the lithium battery pole piece 9 are air-dried by blowing through the upper blowing nozzle 32 and the lower blowing nozzle 33 to two sides of the lithium battery pole piece 9.
Referring to fig. 1 to 4, when the double-sided disposable coating and drying device for lithium battery pole pieces of the embodiment works, the lithium battery pole pieces 9 to be coated are unreeled through the unreeling device 4, and the lithium battery pole pieces 9 sequentially pass through the first surface coating device 1, the second surface coating device 2, the steering roller 8 and the drying device 3 and finally are reeled through the reeling device 5; the first surface coating device 1 is supported on the second surface of the lithium battery pole piece 9 through a conveying roller 11, and the slurry is coated on a middle coating area 91 of the first surface of the lithium battery pole piece 9 through a first coating head 12; at the second surface coating device 2, the two side blank areas 92 of the first surface of the lithium battery pole piece 9 are supported and fixed through the outer side supporting part 212, slurry coated by the middle coating area 91 of the first surface of the lithium battery pole piece 9 is avoided through the middle avoiding part 211, and the slurry is coated to the middle coating area 91 of the second surface of the lithium battery pole piece 9 through the second coating head 22; the middle coating areas 91 of the first surface and the second surface of the lithium battery pole piece 9 are coated with the sizing agent and then enter the drying device 3, and the sizing agent coated on the first surface and the second surface of the lithium battery pole piece 9 is dried through the drying device 3; and finally, winding and storing the coating slurry through a winding device 5 and drying the lithium battery pole piece 9. The lithium battery pole piece 9 is in a vertical state after passing through the second surface coating device 2, the lithium battery pole piece 9 in the vertical state is turned to be in a horizontal state by 90 degrees through the turning roller 8, and the lithium battery pole piece 9 enters the drying device 3 in the horizontal state to facilitate the drying treatment of the drying device 3. In the drying device 3, the lithium battery pole piece 9 coated with the sizing agent is suspended in the oven box 31 by blowing through the upper blowing nozzle 32 and the lower blowing nozzle 33, and the sizing agent on two sides of the lithium battery pole piece 9 is dried by blowing to two sides of the lithium battery pole piece 9 through the upper blowing nozzle 32 and the lower blowing nozzle 33. The lithium battery pole piece 9 which is coated with the sizing agent and dried can be cut off to form two side blank areas 92 for use in the middle coating area 91.
It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. Double-sided disposable coating drying equipment of lithium cell pole piece, its characterized in that: the lithium battery pole piece conveying path comprises a first surface coating device (1), a second surface coating device (2) and a drying device (3), wherein the first surface coating device (1), the second surface coating device (2) and the drying device (3) are sequentially arranged along the lithium battery pole piece conveying path; the second surface coating device (2) comprises a vacuum suction roller (21) and a second coating head (22), wherein the second coating head (22) is arranged outside the vacuum suction roller (21).
2. The lithium battery pole piece double-sided disposable coating and drying device according to claim 1, wherein: the vacuum suction roll (21) comprises a middle avoidance part (211) and an outer side supporting part (212), wherein the middle avoidance part (211) and the outer side supporting part (212) are coaxially arranged, the outer side supporting part (212) is arranged on two sides of the middle avoidance part (211), and the outer diameter of the middle avoidance part (211) is smaller than that of the outer side supporting part (212).
3. The lithium battery pole piece double-sided disposable coating and drying device according to claim 2, wherein: the outer support portion (212) is provided with a negative pressure suction hole (216).
4. The lithium battery pole piece double-sided disposable coating and drying device according to claim 3, wherein: the vacuum suction roller (21) further comprises a support roller shaft (213), and the middle avoidance part (211) and the outer side support part (212) are both rotatably arranged on the support roller shaft (213).
5. The lithium battery pole piece double-sided disposable coating and drying device according to claim 4, wherein: the vacuum suction roll (21) further comprises a negative pressure connecting pipe (214), the negative pressure connecting pipe (214) is connected to the end of the supporting roll shaft (213), the supporting roll shaft (213) is of a hollow structure, and the negative pressure connecting pipe (214) is communicated with the negative pressure adsorption hole (216) through the space inside the supporting roll shaft (213).
6. The lithium battery pole piece double-sided disposable coating and drying device according to claim 5, wherein: the vacuum suction roller (21) further comprises a synchronous pulley (215), the synchronous pulley (215) is arranged on the outer side of the outer side supporting portion (212), and the synchronous pulley (215) drives the middle avoidance portion (211) and the outer side supporting portion (212) to rotate around the supporting roller shaft (213).
7. The lithium battery pole piece double-sided disposable coating and drying device according to claim 6, wherein: the first surface coating device (1) comprises a conveying roller (11) and a first coating head (12), wherein the first coating head (12) is arranged outside the conveying roller (11); the conveying roller (11) is of a straight roller structure.
8. The lithium battery pole piece double-sided disposable coating and drying device according to claim 7, wherein: still include unreeling device (4), coiling mechanism (5), cross roller (6) and compression roller (7), unreeling device (4) set up in first face coating device (1) anterior segment, coiling mechanism (5) set up in drying device (3) back end, cross roller (6) set up between unreeling device (4) and first face coating device (1), between first face coating device (1) and second face coating device (2) and the position between drying device (3) and coiling mechanism (5), compression roller (7) set up in conveying roller (11) and vacuum inhale move roller (21) periphery.
9. The lithium battery pole piece double-sided disposable coating and drying device according to any one of claims 1 to 8, characterized in that: the device also comprises a steering roller (8), wherein the steering roller (8) is fixedly arranged between the second surface coating device (2) and the drying device (3); the end part of the steering roller (8) is connected with a high-pressure connecting air pipe (81), the steering roller (8) is provided with a high-pressure air blowing hole (82), and the high-pressure connecting air pipe (81) is communicated with the high-pressure air blowing hole (82); the high-pressure air blowing holes (82) are distributed in a ninety-degree fan-shaped range on the steering roller (8).
10. The lithium battery pole piece double-sided disposable coating and drying device according to claim 9, wherein: drying device (3) are including oven box (31), go up blowing mouth (32) and lower blowing mouth (33) and set up respectively in the both sides of lithium cell pole piece conveying path in oven box (31), and go up blowing mouth (32) and lower blowing mouth (33) dislocation set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223096668.XU CN219334794U (en) | 2022-11-21 | 2022-11-21 | Double-sided disposable coating and drying equipment for lithium battery pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223096668.XU CN219334794U (en) | 2022-11-21 | 2022-11-21 | Double-sided disposable coating and drying equipment for lithium battery pole piece |
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| Publication Number | Publication Date |
|---|---|
| CN219334794U true CN219334794U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223096668.XU Active CN219334794U (en) | 2022-11-21 | 2022-11-21 | Double-sided disposable coating and drying equipment for lithium battery pole piece |
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| Country | Link |
|---|---|
| CN (1) | CN219334794U (en) |
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2022
- 2022-11-21 CN CN202223096668.XU patent/CN219334794U/en active Active
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