CN220710386U - Diaphragm adsorption device - Google Patents

Diaphragm adsorption device Download PDF

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Publication number
CN220710386U
CN220710386U CN202322264334.7U CN202322264334U CN220710386U CN 220710386 U CN220710386 U CN 220710386U CN 202322264334 U CN202322264334 U CN 202322264334U CN 220710386 U CN220710386 U CN 220710386U
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CN
China
Prior art keywords
diaphragm
winding needle
needle
auxiliary
compression roller
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Active
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CN202322264334.7U
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Chinese (zh)
Inventor
曹海霞
王建东
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Zhuhai Higrand Technology Co Ltd
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Zhuhai Higrand Technology Co Ltd
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Priority to CN202322264334.7U priority Critical patent/CN220710386U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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Abstract

The utility model provides a diaphragm adsorption device, which comprises a winding needle and a compression roller assembly; the outer peripheral surface of the winding needle is provided with an adsorption area for adsorbing the diaphragm; the compression roller assembly comprises a diaphragm compression roller and an auxiliary compression roller, the diaphragm compression roller and the auxiliary compression roller can move relative to or deviate from the winding needle, the diaphragm compression roller and the winding needle jointly clamp the diaphragm, and when the diaphragm compression roller and the winding needle clamp the diaphragm, the auxiliary compression roller can prop the head end of the diaphragm to the adsorption area, so that the head end of the diaphragm is attached to the adsorption area. According to the utility model, the auxiliary press roller is arranged on the press roller assembly, so that the head end of the diaphragm can be pressed against the adsorption area of the winding needle by the auxiliary press roller, the head end of the diaphragm can be smoothly and flatly attached to the adsorption area of the winding needle, the quality of the battery cell can be improved, and the diaphragm can be attached to the winding needle more stably by the auxiliary press roller.

Description

Diaphragm adsorption device
Technical Field
The utility model relates to the field of lithium battery processing and technology, in particular to a diaphragm adsorption device.
Background
At present, in the process of producing the battery core by a lithium battery winding machine, the winding process of the battery core determines that diaphragm pre-winding is needed when the battery core is wound, and the production efficiency of the whole equipment is directly influenced by the time for diaphragm pre-winding.
The front end of the diaphragm is smoothly and flatly attached to the winding needle, so that the inner layer of the diaphragm can be prevented from being wrinkled, and the quality of the battery cell can be improved. In the prior art, the head end of the cut diaphragm is mainly attached to the winding needle in a blowing mode, but the blowing mode is not very stable, and the influence of parts around the large airflow xiao He is large. In addition, the soft brush similar to a hairbrush can be adopted to perform a brushing action on the cut-off diaphragm head end, so that the diaphragm head end is attached to the winding needle, but the mode has higher requirements on the hairbrush material and low efficiency, and cannot adapt to the condition that the diaphragm head end is longer.
Disclosure of Invention
The utility model aims to solve the problem of poor stability of the existing diaphragm when the head end of the diaphragm is attached to a winding needle.
In order to solve the problems, the utility model provides a diaphragm adsorption device, which comprises a winding needle and a compression roller assembly;
an adsorption area for adsorbing the diaphragm is arranged on the outer peripheral surface of the winding needle;
the compression roller assembly comprises a diaphragm compression roller and an auxiliary compression roller, the diaphragm compression roller and the auxiliary compression roller can move relative to or deviate from the winding needle, the diaphragm compression roller and the winding needle jointly clamp the diaphragm, and when the diaphragm compression roller and the winding needle clamp the diaphragm, the auxiliary compression roller can prop and press the head end of the diaphragm to the adsorption area, so that the head end of the diaphragm is attached to the adsorption area.
Further, the compression roller assembly further comprises a mounting plate, a first driving piece and a second driving piece, wherein the first driving piece and the second driving piece are both arranged on the mounting plate, the first driving piece is used for driving the diaphragm compression roller to move relatively or away from the winding needle, and the second driving piece is used for driving the auxiliary compression roller to move relatively or away from the winding needle.
Further, the compression roller assembly further comprises a linear guide rail and a sliding block, the linear guide rail is arranged on the mounting plate, the sliding block is connected with the auxiliary compression roller, and the second driving piece drives the sliding block to slide along the linear guide rail, so that the sliding block drives the auxiliary compression roller to move relatively to or away from the winding needle.
Further, the press roller assembly further comprises a crank, the sliding block is connected with the auxiliary press roller through the crank, and the crank can drive the auxiliary press roller to move relative to or away from the winding needle, or can drive the auxiliary press roller to rotate along the outer peripheral surface of the winding needle.
Further, the compression roller assembly further comprises a tension adjusting piece, one end of the tension adjusting piece is fixedly arranged on the mounting plate, the other end of the tension adjusting piece is fixedly connected with the crank, and the tension adjusting piece is used for limiting the moving direction of the crank.
Further, the tension adjusting piece is a tension spring.
Further, a limiting piece is further arranged on the compression roller assembly and used for limiting the moving distance of the sliding block relative to the linear guide rail.
Further, the press roller assembly further comprises a third driving piece, and the third driving piece drives the mounting plate to move relative to or away from the winding needle.
Further, the diaphragm adsorption device further comprises a cutting assembly, the cutting assembly is used for cutting the diaphragm, the cutting assembly comprises a cutting knife, and the cutting knife can move relative to the conveying direction of the diaphragm.
Further, the winding needle comprises a first half needle and a second half needle, the circle centers of the first half needle and the second half needle are symmetrically arranged, and the adsorption area is arranged on the first half needle.
According to the diaphragm adsorption device, the auxiliary compression roller is arranged on the compression roller assembly, the head end of the diaphragm can be abutted against the adsorption area of the winding needle by the auxiliary compression roller, so that the head end of the diaphragm can be smoothly and flatly attached to the adsorption area of the winding needle, the quality of an electric core is improved, and compared with a blowing mode, the diaphragm can be attached to the winding needle more stably by the auxiliary compression roller; in addition, the winding needle is used for pre-winding the diaphragm, the diaphragm can be conveyed between the diaphragm pressing roller and the winding needle without stopping the conveying of the diaphragm, the diaphragm pressing roller and the winding needle can clamp the diaphragm and pre-winding the diaphragm at the same time, the winding time of the battery cell is reduced, and the winding efficiency of the battery cell is improved.
Drawings
FIG. 1 is a schematic diagram of a first structure of a diaphragm pre-rolled by a diaphragm adsorbing device according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second structure of a pre-rolled membrane of a membrane adsorption device according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a third structure of a diaphragm pre-rolled by a diaphragm adsorbing device according to an embodiment of the present utility model;
fig. 4 is a schematic diagram of a fourth structure of a diaphragm pre-rolled by a diaphragm adsorbing device according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a fifth structure of a pre-rolled membrane of the membrane adsorption device according to the embodiment of the utility model shown in FIG. 4;
FIG. 6 is a schematic view of the structure of the head end of the membrane adsorption device of FIG. 5 pre-rolling membranes of different lengths;
FIG. 7 is a schematic view of a structure of a pressing roller assembly provided in an embodiment of the present utility model adjacent to a winding needle;
fig. 8 is a schematic structural view of a winding needle according to an embodiment of the present utility model.
Reference numerals illustrate:
100-winding needle; 110-first half needle; a 111-adsorption zone; 120-second half needle; 200-a press roll assembly; 210-a diaphragm press roll; 220-auxiliary press rolls; 230-a first driver; 240-a second driver; 250-linear guide rail; 260-a slider; 270-crank; 280-a tension adjuster; 290-fixing the bracket; 300-separator.
Detailed Description
The technical scheme of the utility model is clearly and thoroughly described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features.
In the description of the present specification, the term "on the basis of the above-described embodiment" means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one preferred embodiment or preferred example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same implementations or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in conjunction with fig. 1 to 7, the present embodiment provides a membrane adsorption apparatus including a winding needle 100, a pressing roller assembly 200, and a cutting assembly, wherein:
the outer circumferential surface of the winding needle 100 is provided with an adsorption area 111 for adsorbing the diaphragm 300, and the head end of the diaphragm 300 can be adsorbed on the outer circumferential surface of the winding needle 100 through the adsorption area 111 to complete the positioning and fixing of the diaphragm, and the diaphragm 300 can rotate along with the winding needle 100, so that the diaphragm 300 is pre-wound on the winding needle 100.
The press roller assembly 200 includes a diaphragm press roller 210 and an auxiliary press roller 220, the diaphragm press roller 210 and the auxiliary press roller 220 being movable relative to or away from the winding needle 100, the diaphragm press roller 210 and the winding needle 100 being capable of holding the diaphragm 300 together when the diaphragm press roller 210 moves relative to the winding needle 100, and the auxiliary press roller 220 being capable of moving relative to the winding needle 100 while the diaphragm press roller 210 and the winding needle 100 hold the diaphragm 300 together, so as to press the head end of the diaphragm 300 against the adsorption area 111 of the winding needle 100, so that the head end of the diaphragm 300 is attached to the adsorption area 111, and the head end of the diaphragm 300 being rotatable with the winding needle 100, thereby pre-winding the diaphragm 300 to the winding needle 100.
A cutting assembly (not shown) is provided downstream of the winding needle 100 and the separator roller 210 for cutting the separator 300 to facilitate the winding cycle of the next cell. Wherein, the downstream of the winding needle 100 and the diaphragm pressing roller 210 means that the diaphragm 300 passes through the winding needle 100 and the diaphragm pressing roller 210 and then passes through the cutting assembly along the conveying direction of the diaphragm 300.
In the embodiment, the auxiliary press roller is arranged on the press roller assembly, so that the head end of the diaphragm can be pressed against the adsorption area of the winding needle, the head end of the diaphragm can be smoothly and flatly attached to the adsorption area of the winding needle, the quality of the battery cell is improved, and compared with a blowing mode, the auxiliary press roller can attach the diaphragm to the winding needle more stably; in addition, the winding needle is used for pre-winding the diaphragm, the diaphragm can be conveyed between the diaphragm pressing roller and the winding needle without stopping the conveying of the diaphragm, the diaphragm pressing roller and the winding needle can clamp the diaphragm and pre-winding the diaphragm at the same time, the winding time of the battery cell is reduced, and the winding efficiency of the battery cell is improved.
In this embodiment, the pressing roller assembly 200 further includes a mounting plate (not shown), a first driving member 230, a second driving member 240, a linear guide 250, a slider 260 and a crank 270, where the first driving member 230, the second driving member 240 and the linear guide 250 are all disposed on the mounting plate, the first driving member 230 is connected to the diaphragm pressing roller 210, and the first driving member 230 can drive the diaphragm pressing roller 210 to move relative to or away from the winding needle 100, the second driving member 240 can be connected to the auxiliary pressing roller 220 through the slider 260 and the crank 270, and the second driving member 240 can drive the slider 260 to move along the linear guide 250, so that the crank 270 drives the auxiliary pressing roller 220 to move relative to or away from the winding needle 100. The first driving member 230 and the second driving member 240 may be conventional driving assemblies such as a servo motor, a cylinder, a hydraulic cylinder, etc., and may be driven by conventional mechanical driving structures such as a screw rod, a chain, a rack, a synchronous wheel, a belt, etc. As an alternative embodiment, the first driving member 230 and the second driving member 240 use air cylinders, the rod body of the air cylinder of the first driving member 230 is connected with the diaphragm pressing roller 210 to drive the diaphragm pressing roller 210 to reciprocate in the horizontal direction, and the rod body of the air cylinder of the second driving member 240 is connected with the sliding block 260 to drive the sliding block 260 to reciprocate in the horizontal direction along the linear guide 250, so that the crank 270 drives the auxiliary pressing roller 220 to move relative to or away from the winding needle 100.
It will be appreciated that since the first driving member 230 and the second driving member 240 are both disposed on the mounting plate, the position of the first driving member 230 is fixed relative to the second driving member 240; similarly, the linear guide 250 is fixed in position relative to the second driving member 240.
In this embodiment, the slider 260 and the auxiliary pressing roller 220 are connected through a crank 270, and specifically, one end of the crank 270 may be connected to the slider 260 through a rolling bearing, and the other end of the crank 270 may be connected to the shaft of the auxiliary pressing roller 220.
Wherein the crank 270 can convert the reciprocating motion along the horizontal direction into circular motion or vice versa, so that when the auxiliary press roller 220 is not in contact with the winding needle 100, the slider 260 reciprocates along the linear guide 250 in the horizontal direction, and the crank 270 drives the auxiliary press roller 220 to move relative to or away from the winding needle 100; when the auxiliary pressing roller 220 contacts the winding needle 100, the slider 260 reciprocates in the horizontal direction along the linear guide 250, and the crank 270 drives the auxiliary pressing roller 220 to rotate along the outer circumferential surface of the winding needle 100 and brings the auxiliary pressing roller 220 close to or away from the diaphragm pressing roller 210. When the diaphragm pressing roller 210 is pressed against the winding needle 100, the position of the diaphragm pressing roller 210 is fixed.
On the basis of the above embodiment, the press roller assembly 200 further includes a tension adjusting member 280, one end of the tension adjusting member 280 is fixed on the mounting plate, the other end of the tension adjusting member 280 is fixed on the crank 270, the tension adjusting member 280 is used for limiting the moving direction of the crank 270, providing a tension force capable of balancing the gravity of the crank 270, and avoiding the movement of the crank 270 along the vertical direction under the action of the gravity of the crank 270, so as to influence the auxiliary press roller 220 to press the winding needle 100; meanwhile, when the auxiliary pressing roller 220 is pressed against the winding needle 100, the tension adjusting member 280 can ensure that the auxiliary pressing roller 220 and the winding needle 100 are always in a tangential pressing state. As an alternative embodiment, a fixing bracket 290 is provided on the mounting plate, and one end of the tension adjuster 280 is fixed to the mounting plate by the fixing bracket 290.
As an alternative embodiment, the tension adjuster 280 is a tension spring, which can provide elasticity to facilitate tension adjustment.
On the basis of the above embodiment, the pressing roller assembly 200 is further provided with a limiting member (not shown) for limiting the moving distance of the slider 260 relative to the linear guide 250. Therefore, the distance that the crank 270 drives the auxiliary pressing roller 220 to move on the outer peripheral surface of the winding needle 100 can be limited by limiting the moving distance of the sliding block 260 relative to the linear guide rail 250, so as to adapt to the head ends of the diaphragms 300 with different lengths, for example: the head ends of the diaphragms 300 of different lengths are adjusted in fig. 5 and 6.
The specific position of the limiting member is not further limited in this embodiment, the limiting member may be disposed on the linear guide 250, and the limiting member may also be disposed on the second driving member 240, for example, by limiting the position of the rod body of the cylinder to perform limiting, which may be set by those skilled in the art according to practical situations.
Referring to fig. 7, a third driving member (not shown) may be further disposed on the mounting plate, where the third driving member drives the mounting plate to reciprocate in a horizontal direction, so that the mounting plate moves relative to or away from the winding needle 100, and thus, the pressing roller assembly 200 (including the diaphragm pressing roller 210, the auxiliary pressing roller 220, the first driving member 230, the second driving member 240, the linear guide 250, the slider 260, the crank 270, the tension adjusting member 280, and the fixing bracket 290) disposed on the mounting plate moves relative to or away from the winding needle 100 under the driving of the mounting plate.
Referring to fig. 8, the winding needle 100 includes a first half needle 110 and a second half needle 120, the centers of the first half needle 110 and the second half needle 120 are symmetrically arranged, a gap can be arranged between the first half needle 110 and the second half needle 120, and the adsorption area 111 is arranged on the first half needle 110. As an alternative embodiment, an air passage may be provided in the first half needle 110, the air passage forming an adsorption port in the outer circumferential surface of the first half needle 110, the region where the adsorption port is provided forming the adsorption zone 111, and a negative pressure may be formed in the air passage to allow the adsorption port to have an adsorption force, thereby allowing the adsorption zone 111 to have an adsorption force. It will be appreciated that the negative pressure formed in the air passage is relative to the air pressure of the environment in which the winding needle 100 is located, that is, when the air pressure in the air passage is lower than the air pressure (for example, standard atmospheric pressure) of the environment in which the winding needle 100 is located, the negative pressure is formed, and at this time, the air pressure in the air passage and the air pressure outside the air passage have a pressure difference, so that the adsorption port has an adsorption force.
As an alternative embodiment, the cutting assembly includes a cutting knife and a cutting support, the cutting support is mounted on the mounting plate, the cutting knife is mounted on the cutting support, and the cutting knife is slidably disposed on the cutting support, so that the cutting knife can move along a direction perpendicular to a conveying direction of the diaphragm 300, so that the cutting knife cuts the diaphragm 300, and at the same time, the cutting knife can move relative to the conveying direction of the diaphragm 300, so as to cut the head ends of the diaphragms 300 with different lengths.
The operation principle of the membrane adsorption apparatus of the present embodiment will be described with reference to fig. 1 to 5:
the third driving piece drives the mounting plate and the compression roller assembly 200 on the mounting plate to move relative to the winding needle 100, after moving to a proper position, the first driving piece 230 drives the diaphragm compression roller 210 to move relative to the winding needle 100, the diaphragm compression roller 210 and the winding needle 100 jointly clamp the diaphragm 300, and after the two layers of diaphragms 300 are combined together and straightened, the cutting knife moves and cuts off the diaphragm 200;
the second driving piece 240 drives the sliding block 260 to move along the linear guide rail 250 in the horizontal direction, and the sliding block 260 drives the auxiliary pressing roller 220 to move relative to the winding needle 100 through the crank 270 so as to press the diaphragm 300 against the adsorption area 111 of the winding needle 100, so that the diaphragm 300 is attached to the adsorption area 111;
along with the second driving piece 240 continuously driving the sliding block 260 to move along the linear guide rail 250 in the horizontal direction, the crank 270 drives the auxiliary pressing roller 220 to rotate along the peripheral surface of the winding needle 110, the head end of the diaphragm 300 is pressed against the winding needle 110, and the subsequent diaphragm 300 can rotate along with the winding needle 100, so that the diaphragm 300 is pre-wound on the winding needle 100;
after the pre-winding is completed, the second driving member 240 drives the sliding block 260 to drive the auxiliary pressing roller 220 to move away from the winding needle 100 through the crank 270, the first driving member 230 drives the diaphragm pressing roller 210 to move away from the winding needle 100, and the third driving member can drive the mounting plate and the pressing roller assembly 200 on the mounting plate to move away from the winding needle 100.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The diaphragm adsorption device is characterized by comprising a winding needle and a compression roller assembly;
an adsorption area for adsorbing the diaphragm is arranged on the outer peripheral surface of the winding needle;
the compression roller assembly comprises a diaphragm compression roller and an auxiliary compression roller, the diaphragm compression roller and the auxiliary compression roller can move relative to or deviate from the winding needle, the diaphragm compression roller and the winding needle jointly clamp the diaphragm, and when the diaphragm compression roller and the winding needle clamp the diaphragm, the auxiliary compression roller can prop and press the head end of the diaphragm to the adsorption area, so that the head end of the diaphragm is attached to the adsorption area.
2. The membrane suction device of claim 1, wherein the pressure roller assembly further comprises a mounting plate, a first driving member and a second driving member, the first driving member and the second driving member are both disposed on the mounting plate, the first driving member is used for driving the membrane pressure roller to move relative to or away from the winding needle, and the second driving member is used for driving the auxiliary pressure roller to move relative to or away from the winding needle.
3. The membrane suction device of claim 2, wherein the press roller assembly further comprises a linear guide rail and a slide block, the linear guide rail is arranged on the mounting plate, the slide block is connected with the auxiliary press roller, and the second driving piece drives the slide block to slide along the linear guide rail, so that the slide block drives the auxiliary press roller to move relatively to or away from the winding needle.
4. A membrane suction device as in claim 3, wherein the pressure roller assembly further comprises a crank, the slider and the auxiliary pressure roller are connected by the crank, the crank can drive the auxiliary pressure roller to move relative to or away from the winding needle, or the crank can drive the auxiliary pressure roller to rotate along the outer peripheral surface of the winding needle.
5. The membrane suction device as claimed in claim 4, wherein the pressing roller assembly further comprises a tension adjusting member, one end of the tension adjusting member is fixedly installed on the installation plate, the other end of the tension adjusting member is fixedly connected with the crank, and the tension adjusting member is used for limiting the moving direction of the crank.
6. The membrane suction device of claim 5, wherein the tension adjusting member is a tension spring.
7. A membrane suction device as in claim 3, wherein the pressure roller assembly is further provided with a limiting member for limiting the moving distance of the slider relative to the linear guide.
8. The membrane suction device of claim 2, wherein the pressure roller assembly further comprises a third drive member that drives the mounting plate to move relative to or away from the winding needle.
9. The membrane suction device of claim 1, further comprising a cutting assembly for cutting the membrane, the cutting assembly comprising a cutting blade movable relative to a direction of conveyance of the membrane.
10. The membrane adsorption device of claim 1, wherein the winding needle comprises a first half needle and a second half needle, the centers of the first half needle and the second half needle are symmetrically arranged, and the adsorption area is arranged on the first half needle.
CN202322264334.7U 2023-08-23 2023-08-23 Diaphragm adsorption device Active CN220710386U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322264334.7U CN220710386U (en) 2023-08-23 2023-08-23 Diaphragm adsorption device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322264334.7U CN220710386U (en) 2023-08-23 2023-08-23 Diaphragm adsorption device

Publications (1)

Publication Number Publication Date
CN220710386U true CN220710386U (en) 2024-04-02

Family

ID=90452427

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322264334.7U Active CN220710386U (en) 2023-08-23 2023-08-23 Diaphragm adsorption device

Country Status (1)

Country Link
CN (1) CN220710386U (en)

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