CN114744365A - Device for folding and unfolding extraction inlet film and using method thereof - Google Patents
Device for folding and unfolding extraction inlet film and using method thereof Download PDFInfo
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- CN114744365A CN114744365A CN202210185019.2A CN202210185019A CN114744365A CN 114744365 A CN114744365 A CN 114744365A CN 202210185019 A CN202210185019 A CN 202210185019A CN 114744365 A CN114744365 A CN 114744365A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/403—Manufacturing processes of separators, membranes or diaphragms
- H01M50/406—Moulding; Embossing; Cutting
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a device for folding and unfolding a film at an extraction inlet and a using method thereof, wherein a pair of film bundling arms (2) which can be close to or far away from each other are arranged at the inlet side of a mechanism frame (4) of the device, the two film bundling arms (2) are arranged on a linear module (1) with two sliding blocks or on two linear modules (1) with one sliding block respectively, and the linear module (1) is driven by a transmission motor (3) to adjust the distance between the two film bundling arms (2); the rear side of the linear module (1) is provided with a traction roller set (5), each traction roller of the traction roller set (5) is provided with a corresponding traction motor (9), and the traction roller set (5) is used for drawing films passing through the two film arms (2). The device can fold or unfold the film according to the requirement when being matched with an extraction device. The device has simple structure and convenient operation, can automatically fold the film into a rope, can automatically unfold the film according to the speed of a production line, and improves the efficiency.
Description
Technical Field
The invention belongs to the technical field of lithium battery diaphragm production, and particularly relates to a folding and unfolding device for an extraction inlet thin film and a using method thereof.
Background
With the high-speed development of electric automobiles, lithium batteries become the mainstream of power battery development, the demand of the market for lithium battery diaphragms is increasing day by day, the production line of films develops towards the direction of increasing speed, the difficulty of diaphragm production is increased, and the films need to be folded or unfolded according to the production requirements on the production line of films. Especially when the membrane is threaded for extraction, the membrane needs to be folded into a rope to be connected with a traction rope in the extraction, and due to the high speed, manual operation is often difficult to maintain for a long time because of limited force, so that the membrane threading failure is caused due to the fact that the membrane is threaded for the optimal time for extraction. Meanwhile, the manual operation efficiency is low, and the productivity is influenced. Therefore, it is necessary to design a device for closing and opening an extraction inlet film to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a device for folding and unfolding a film at an extraction inlet and a using method thereof.
The invention aims to solve the problems by the following technical scheme:
a device for closing and unfolding an extraction inlet film comprises a mechanism frame and is characterized in that: a pair of film bundling arms which can approach or depart from each other are arranged on the inlet side of the mechanism frame, the two film bundling arms are arranged on a linear module with two sliding blocks or two linear modules with one sliding block respectively, and the linear module is driven by a transmission motor to enable the sliding blocks to move along the arrangement direction of the linear module so as to adjust the distance between the two film bundling arms; the rear side of the linear module is provided with a traction roller set, each traction roller of the traction roller set is provided with a corresponding traction motor, and the traction roller set is used for drawing films passing through the two film arms.
When only one linear module is arranged on the inlet side of the mechanism frame, the two sliding blocks on the linear module can move in opposite directions or back directions under the drive of the same transmission motor.
When the inlet side of the mechanism frame is provided with a pair of linear modules, the two linear modules are arranged on the same straight line and are symmetrically arranged, each linear module is provided with an independent transmission motor for driving, and the two sliding blocks on the two linear modules are close to or far away from each other under the combined action of the two transmission motors.
The non-driving ends of the two linear modules are mutually connected and connected with the driving end of the transmission motor and are positioned at the two ends of the linear module group formed by the two linear modules.
The membrane restraining arms are of a C-shaped structure, and the openings of the two symmetrically arranged membrane restraining arms are arranged oppositely.
The draw roller group include three carry over pinch rolls, the three carry over pinch rolls that are the triangle-shaped overall arrangement all are on a parallel with linear module setting, wherein the upper surface that is close to linear module setting and the second carry over pinch roll position of the first carry over pinch roll of arm at same level, first carry over pinch roll rear side are less than first carry over pinch roll, and are located the third carry over pinch roll position of the outlet side of mechanism frame and are higher than first carry over pinch roll.
The outlet side of the mechanism frame is provided with an auxiliary rope collecting mechanism with an independent structure, and the auxiliary rope collecting mechanism can temporarily wind the film which is drawn out by the traction roller set and is folded into a rope.
The auxiliary rope winding mechanism is located in the middle area of the outlet side of the mechanism frame, so that the rope winding roller in the auxiliary rope winding mechanism is arranged in the middle of the roller body of the traction roller set.
The two membrane arms move towards the center under the action of the linear module to be close to each other, a 3000-6000mm wide thin film can be folded, the diameter of the folded membrane is 30-80mm, and the two membrane arms move towards the two sides under the action of the linear module to be away from each other to unfold the folded thin film.
The device can automatically fold and unfold the film before extraction with the production speed of 40-100 m/min.
A use method of a device for closing and unfolding an extraction inlet film is characterized in that: when the device for folding and unfolding the extraction inlet film is matched with the extraction device for use, the steps are as follows:
A. manually drawing the film to a drawing roller group, driving a corresponding drawing roller to rotate by a drawing motor so as to transmit the film to the tail end of the drawing roller group and connect the film with a drawing rope in the extraction device;
B. the transmission motor drives the linear module to enable the film binding arm to move towards the center so as to fold the film;
C. and starting the extraction roller to drive the folded film to advance, and after the folded film between the traction roller set and the extraction roller is tightened, driving the linear module by the transmission motor to drive the film binding arm to move towards two sides and unfold the film according to the requirements of the extraction device.
A use method of a device for closing and unfolding an extraction inlet film is characterized in that: when the device for folding and unfolding the extraction inlet film is matched with the extraction device for use, the method comprises the following specific steps:
A. manually drawing the film to the drawing roller group, and driving the corresponding drawing roller drum to rotate by a drawing motor so as to transmit the film to the tail end of the drawing roller group;
B. the transmission motor drives the linear module to enable the film binding arm to move towards the center so as to fold the film;
C. the folded film is pulled to an auxiliary rope winding mechanism by a traction roller group for temporary winding;
D. connecting a traction rope in the extraction device with the folded film between the traction roller set and the auxiliary rope winding mechanism, and then cutting off the folded film at the connecting point on the side of the auxiliary rope winding mechanism;
E. and starting the extraction roller to drive the folded film to advance, and after the folded film between the traction roller set and the extraction roller is tightened, driving the linear module by the transmission motor to drive the film binding arm to move towards two sides and unfold the film according to the requirements of the extraction device.
Compared with the prior art, the invention has the following advantages:
the device can adapt to different production line speeds, automatically fold the film into a rope, and automatically unfold the film according to the production line speed when being matched with an extraction device for use, so that the production efficiency is improved; the folding and unfolding of the waste diaphragm can replace manpower, so that the labor cost is saved, and meanwhile, the danger of manual operation is avoided; the device simple structure, convenient operation, fault rate are low, facilitate the use and later maintenance.
Drawings
FIG. 1 is a schematic structural view of an apparatus for closing and unfolding an extraction inlet membrane according to the present invention;
FIG. 2 is a schematic diagram of the matching structure of the extraction inlet film folding and unfolding device and the components of the extraction device.
Wherein: 1-linear module; 2-a membrane binding arm; 3, driving a motor; 4-mechanism frame; 5-a traction roller set; 6, an auxiliary rope retracting mechanism; 7-extraction roller; 8, a traction rope; 9-traction motor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1: a film folding and unfolding device for an extraction inlet comprises a mechanism frame 4, wherein a pair of film bundling arms 2 which can be close to or far away from each other are arranged on the inlet side of the mechanism frame 4, the film bundling arms 2 are of a C-shaped structure, the openings of the two symmetrically arranged film bundling arms 2 are oppositely arranged, the two film bundling arms 2 are arranged on a linear module 1 with two sliders or two linear modules 1 with one slider respectively, and the linear module 1 is driven by a transmission motor 3 to enable the sliders to move along the arrangement direction of the linear module 1 so as to adjust the distance between the two film bundling arms 2; be equipped with traction roller set 5 at linear module 1's rear side, traction roller set 5 generally includes three carry over pinch rolls, three carry over pinch rolls that are the triangle-shaped overall arrangement all are on a parallel with linear module 1 and set up, wherein the upper surface and the beam membrane arm 2 that are close to linear module 1 and set up are at same level, the second carry over pinch roll position of first carry over pinch roll rear side is less than first carry over pinch roll, and the third carry over pinch roll position that is located the outlet side of mechanism frame 4 is higher than first carry over pinch roll, be equipped with corresponding traction motor 9 on every carry over pinch roll of this traction roller set 5 respectively, traction roller set 5 is used for drawing the film that folds and expand through two bundles of membrane arms 2. The two membrane arms 2 move towards the center under the action of the linear module 1 to be close to each other, a 3000-6000mm wide thin film can be folded, the diameter of the folded membrane is 30-80mm, and the two membrane arms 2 move towards the two sides under the action of the linear module 1 to be away from each other to unfold the folded thin film; the device can automatically fold and unfold the film before extraction with the production speed of 40-100 m/min.
On the basis of the structure, when only one linear module 1 is arranged at the inlet side of the mechanism frame 4, two sliding blocks on the linear module 1 can move in opposite directions or back directions under the drive of the same transmission motor 3; when the inlet side of the mechanism frame 4 is provided with a pair of linear modules 1, the two linear modules 1 are arranged on the same straight line, the two linear modules 1 are symmetrically arranged, the non-driving ends of the two linear modules 1 are mutually connected, the driving ends of the connecting transmission motors 3 are positioned at two ends of a linear module group formed by the two linear modules 1, each linear module 1 is provided with a single transmission motor 3 for driving, and the two sliding blocks on the two linear modules 1 are close to or far away from each other under the combined action of the two transmission motors 3.
On the basis of the structure, an auxiliary rope-collecting mechanism 6 with an independent structure is arranged at the outlet side of the mechanism frame 4, and the auxiliary rope-collecting mechanism 6 can temporarily wind the film which is drawn by the traction roller group 5 and is folded into a rope; the auxiliary rope winding mechanism 6 is located in the middle area of the outlet side of the mechanism frame 4, so that the rope winding rollers in the auxiliary rope winding mechanism 6 are arranged corresponding to the middle of the roller bodies of the traction roller group 5.
As shown in fig. 2, a method for using an extraction inlet film folding and unfolding device, when the extraction inlet film folding and unfolding device is used in cooperation with an extraction device, comprises the following specific steps: A. manually drawing the film to the drawing roller group 5, and driving a corresponding drawing roller to rotate by a drawing motor 9 so as to transmit the film to the tail end of the drawing roller group 5; B. the transmission motor 3 drives the linear module 1 to make the film binding arm 2 move towards the center to fold the film; C. the folded film is drawn to an auxiliary rope-collecting mechanism 6 by a drawing roller group 5 to be temporarily wound; D. connecting a traction rope 8 in the extraction device with the folded thin film between the traction roller set 5 and the auxiliary rope-collecting mechanism 6, and then cutting off the folded thin film at the connecting point on the side of the auxiliary rope-collecting mechanism 6; E. and starting the extraction roller 7 to drive the folded film to advance, and after the folded film between the traction roller set 5 and the extraction roller 7 is tightened, driving the linear module 1 by the transmission motor 3 to enable the film binding arm 2 to move towards two sides and unfold the film according to the requirements of the extraction device.
Example one
A device for folding and unfolding an extraction inlet film is characterized in that as shown in figure 1, a linear module 1 with a sliding block is respectively arranged on the left side and the right side of a first cross beam of a mechanism frame 4, the non-driving ends of the linear modules 1 are mutually connected, and two transmission motors 3 are respectively connected with the linear modules 1 to provide power. The film binding arms 2 are C-shaped structures, are oppositely opened and symmetrically arranged, are respectively arranged on the slide blocks of the left linear module 1 and the right linear module 1, and can simultaneously move towards the middle or two sides to realize the folding and unfolding of the film; the mechanism frame 4 at the rear side of the linear module 1 is provided with three traction roller sets 5, the three traction rollers in triangular arrangement are all arranged in parallel to the linear module 1, and each traction roller is driven by a traction motor 9; wherein the upper surface of a first traction roller arranged close to the linear module 1 and the film bundling arm 2 are at the same horizontal height, the position of a second traction roller at the rear side of the first traction roller is lower than that of the first traction roller, and the position of a third traction roller at the outlet side of the mechanism frame 4 is higher than that of the first traction roller. The auxiliary rope-collecting mechanism 6 is an independent structure and is arranged on the ground at the outlet side of the mechanism frame 4 and is flush with the central line of the device, and the rope-collecting roller on the auxiliary rope-collecting mechanism 6 can temporarily wind the film which is collected into a rope. In addition, a traction rope 8 and an extraction roller 7 in the extraction device are also shown in fig. 2, the traction rope 8 in the extraction device is connected with a folded film between the traction roller set 5 and the auxiliary rope winding mechanism 6, then the folded film at the connecting point on the side of the auxiliary rope winding mechanism 6 is cut off, the extraction roller 7 is started to drive the folded film to advance, after the folded film between the traction roller set 5 and the extraction roller 7 is tightened, the transmission motor 3 drives the linear module 1 to enable the film bundling arm 2 to move towards two sides, and the film is unfolded according to the requirements of the extraction device.
The device can adapt to different production line speeds, automatically fold the film into a rope, and automatically unfold the film according to the production line speed when being matched with an extraction device for use, so that the production efficiency is improved; the folding and unfolding of the waste diaphragm can replace manpower, so that the labor cost is saved, and meanwhile, the danger of manual operation is avoided; the device simple structure, convenient operation, fault rate are low, facilitate the use and later maintenance.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea proposed by the present invention falls within the protection scope of the present invention; the technology not related to the invention can be realized by the prior art.
Claims (12)
1. An extraction inlet membrane folding and unfolding device comprising a mechanism frame (4), characterized in that: a pair of film bundling arms (2) which can approach to each other or separate from each other are arranged on the inlet side of the mechanism frame (4), the two film bundling arms (2) are arranged on a linear module (1) with two sliding blocks or on two linear modules (1) with one sliding block respectively, and the linear module (1) is driven by a transmission motor (3) to enable the sliding blocks to move along the arrangement direction of the linear module (1) so as to adjust the distance between the two film bundling arms (2); the rear side of the linear module (1) is provided with a traction roller set (5), each traction roller of the traction roller set (5) is provided with a corresponding traction motor (9), and the traction roller set (5) is used for drawing films passing through the two film arms (2).
2. The device for extraction inlet membrane folding and unfolding according to claim 1, characterized in that: when only one linear module (1) is arranged at the inlet side of the mechanism frame (4), two sliding blocks on the linear module (1) can move in opposite directions or back directions under the drive of the same transmission motor (3).
3. The device for extraction inlet membrane folding and unfolding according to claim 1, characterized in that: when the inlet side of the mechanism frame (4) is provided with the pair of linear modules (1), the two linear modules (1) are arranged on the same straight line, the two linear modules (1) are symmetrically arranged, each linear module (1) is provided with an independent transmission motor (3) for driving, and the two sliding blocks on the two linear modules (1) are close to or far away from each other under the combined action of the two transmission motors (3).
4. The device for extraction inlet membrane folding and unfolding according to claim 3, characterized in that: the non-driving ends of the two linear modules (1) are mutually connected, and the driving ends of the connecting transmission motor (3) are positioned at the two ends of the linear module group formed by the two linear modules (1).
5. The device for extraction inlet membrane folding and unfolding according to claim 1, characterized in that: the membrane bundling arms (2) are of a C-shaped structure, and the openings of the two symmetrically arranged membrane bundling arms (2) are arranged oppositely.
6. The device for extraction inlet membrane folding and unfolding according to claim 1, characterized in that: traction roller set (5) include three carry over pinch rolls, three carry over pinch rolls that are the triangle-shaped overall arrangement all are on a parallel with linear module (1) setting, wherein close to the upper surface of the first carry over pinch roll that linear module (1) set up and restraint membrane arm (2) and be less than first carry over pinch roll in the second carry over pinch roll position of same level height, first carry over pinch roll rear side, and be located the third carry over pinch roll position of the outlet side of mechanism frame (4) and be higher than first carry over pinch roll.
7. The device for extraction inlet membrane folding and unfolding according to claim 1, characterized in that: the mechanism is characterized in that an auxiliary rope retracting mechanism (6) with an independent structure is arranged on the outlet side of the mechanism frame (4), and the auxiliary rope retracting mechanism (6) can temporarily wind a film which is drawn out by the traction roller set (5) and is folded into a rope.
8. The device for extraction inlet membrane folding and unfolding according to claim 7, characterized in that: the auxiliary rope-collecting mechanism (6) is positioned in the middle area of the outlet side of the mechanism frame (4), so that the rope-collecting roller in the auxiliary rope-collecting mechanism (6) is arranged corresponding to the middle of the roller body of the traction roller set (5).
9. The device for extraction inlet membrane folding and unfolding according to claim 1, characterized in that: the two membrane arms (2) move towards the center under the action of the linear module (1) to be close to each other, films with widths of 3000-6000mm can be folded, the diameter of the folded membrane is 30-80mm, and the two membrane arms (2) move towards the two sides under the action of the linear module (1) to be away from each other to unfold the folded films.
10. The device for extraction inlet membrane folding and unfolding according to claim 1, characterized in that: the device can automatically fold and unfold the film before extraction with the production speed of 40-100 m/min.
11. A use method of a device for closing and unfolding an extraction inlet film is characterized in that: when the device for folding and unfolding the extraction inlet film is matched with the extraction device for use, the steps are as follows:
A. manually drawing the film to a drawing roller group (5), driving a corresponding drawing roller to rotate by a drawing motor (9) so that the film is conveyed to the tail end of the drawing roller group (5) and is connected with a drawing rope (8) in the extraction device;
B. the transmission motor (3) drives the linear module (1) to enable the film bundling arm (2) to move towards the center to fold the film;
C. and starting the extraction roller (7) to drive the folded film to advance, and after the folded film between the traction roller set (5) and the extraction roller (7) is tightened, driving the linear module (1) by the transmission motor (3) to enable the film bundling arm (2) to move towards two sides and unfold the film according to the requirement of the extraction device.
12. A use method of a device for closing and unfolding an extraction inlet film is characterized in that: when the device for folding and unfolding the extraction inlet film is matched with the extraction device for use, the method comprises the following specific steps:
A. manually drawing the film to the drawing roller group (5), and driving a corresponding drawing roller to rotate by a drawing motor (9) so that the film is conveyed to the tail end of the drawing roller group (5);
B. the transmission motor (3) drives the linear module (1) to enable the film bundling arm (2) to move towards the center to fold the film;
C. the folded film is drawn to an auxiliary rope-collecting mechanism (6) through a drawing roller group (5) to be temporarily wound;
D. connecting a traction rope (8) in the extraction device with the folded film between the traction roller set (5) and the auxiliary rope-collecting mechanism (6), and then cutting off the folded film at the connecting point on the side of the auxiliary rope-collecting mechanism (6);
E. and starting the extraction roller (7) to drive the folded film to advance, and after the folded film between the traction roller set (5) and the extraction roller (7) is tightened, driving the linear module (1) by the transmission motor (3) to enable the film bundling arm (2) to move towards two sides and unfold the film according to the requirement of the extraction device.
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| CN202210185019.2A CN114744365B (en) | 2022-02-28 | 2022-02-28 | Device for folding and unfolding extraction inlet film and application method thereof |
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| CN202210185019.2A CN114744365B (en) | 2022-02-28 | 2022-02-28 | Device for folding and unfolding extraction inlet film and application method thereof |
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| CN114744365B CN114744365B (en) | 2023-07-07 |
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| CN206663929U (en) * | 2017-04-18 | 2017-11-24 | 夏卫国 | Woven bag compounding machine is automatically to a device |
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| CN107482150A (en) * | 2017-07-21 | 2017-12-15 | 苏州捷力新能源材料有限公司 | The horizontal drawing extraction process of lithium battery diaphragm |
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| CN209455768U (en) * | 2018-10-31 | 2019-10-01 | 广东仕诚塑料机械有限公司 | A kind of film take-up traction device |
| CN208970609U (en) * | 2018-11-22 | 2019-06-11 | 苏州捷力新能源材料有限公司 | A kind of manufacturing equipment of lithium battery diaphragm |
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| CN214099817U (en) * | 2020-12-22 | 2021-08-31 | 中材锂膜有限公司 | Wet process lithium battery diaphragm extraction quick stringing device |
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