CN116373327A - Hot-pressing cutter assembly, diaphragm cutting device and diaphragm cutting method - Google Patents
Hot-pressing cutter assembly, diaphragm cutting device and diaphragm cutting method Download PDFInfo
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- CN116373327A CN116373327A CN202310669757.9A CN202310669757A CN116373327A CN 116373327 A CN116373327 A CN 116373327A CN 202310669757 A CN202310669757 A CN 202310669757A CN 116373327 A CN116373327 A CN 116373327A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 162
- 238000007731 hot pressing Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 86
- 238000003825 pressing Methods 0.000 claims abstract description 72
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 13
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 239000002131 composite material Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 7
- 238000007906 compression Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
The invention discloses a hot pressing cutter assembly, a diaphragm cutting device and a diaphragm cutting method, wherein the hot pressing cutter comprises a cutting pressing cutter, an edge sealing pressing cutter and a heating piece; the diaphragm cutting device comprises an unreeling mechanism, a diaphragm layer group and a hot-pressing cutter assembly. By adopting the arrangement, when the hot pressing cutter assembly is used, synchronous movement of the cutting pressing cutter and the edge sealing pressing cutter can be realized, and when the diaphragm is cut, the edge sealing pressing cutter is synchronously utilized to press and seal the edge of the diaphragm adjacent to the cutting position, and meanwhile, the edge and the cutting position are kept in an isothermal state; when the diaphragm cutting device is used, the unreeling mechanism is used for unreeling the diaphragm layer group, the hot pressing knife component cuts the diaphragm component, the edge of the diaphragm layer group adjacent to the cutting position is synchronously pressed and sealed by the edge sealing pressing knife, and the edge and the cutting position are kept in an isothermal state; therefore, the situation that the edge of the diaphragm is warped is reduced, and the edge sealing effect of the diaphragm is improved.
Description
Technical Field
The invention relates to the technical field of diaphragm cutting equipment, in particular to a hot pressing cutter assembly, a diaphragm cutting device and a diaphragm cutting method.
Background
The separator is one of the key inner layer components in the cell structure. The double-layer composite diaphragm structure is generally composed of a diaphragm-pole piece-diaphragm structure. In the cutting process, a conventional cutter is generally used, and the cutting direction is adjusted for multiple times or the number of cutters is increased to perform staggered cutting, so that one-time rapid cutting cannot be realized. The staggered cutting of the diaphragm and the pole piece is easy to cause the dislocation of the diaphragm, and meanwhile, the edge sealing is difficult to be carried out in a hot pressing mode in the process of compounding the diaphragm and the pole piece after cutting, so that the edge sealing effect is easy to influence.
Based on this, a diaphragm cutter mechanism of the prior art with CN206855618U discloses a structure in which a cutter is heated by a heating unit, and the mechanism has only one cutter. When the cutter with the heating structure of the prior patent is utilized to cut the diaphragm in a staggered way, as the cutter can not cut and press the adjacent edges simultaneously, the edge corresponding to the cutting position in the diaphragm is easy to be warped due to the temperature difference, thereby reducing the quality of the cut diaphragm product.
Disclosure of Invention
The invention provides a hot pressing cutter assembly, a diaphragm cutting device and a diaphragm cutting method, which are used for solving the problem that the edge of a diaphragm can not be cut and pressed by the existing pressing cutter, so that the edge of the diaphragm adjacent to the cutting edge is warped due to temperature difference.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a hot press knife assembly comprising a cutting press knife, an edge sealing press knife and a heating element, wherein the cutting press knife has a first direction and a second direction, and the first direction intersects the second direction; the cutting blade has a blade portion extending in the first direction; the edge sealing press cutters are arranged at two ends of the cutting edge part in the first direction; the edge sealing press knife is provided with a pressing part extending along the second direction; the heating piece is used for heating the cutting press knife and the edge sealing press knife.
The diaphragm cutting device comprises an unreeling mechanism, a diaphragm layer group and a hot-pressing cutter assembly, wherein the unreeling mechanism is used for unreeling the diaphragm layer group along the second direction; the cutting press is used for cutting the diaphragm layer group along a third direction, and the third direction is perpendicular to the first direction and the second direction; the edge sealing pressing knife is used for pressing the edges of the diaphragm layer group along the third direction.
A method for cutting a diaphragm, comprising,
the first step, the diaphragm cutting devices are symmetrically arranged in the third direction of the diaphragm layer group;
step two, a heating piece of the diaphragm cutting device heats the cutting press knife and the edge sealing press knife;
thirdly, hot-pressing and cutting the diaphragm layer group in a third direction by a cutting pressing knife of the diaphragm cutting device; and meanwhile, the edge sealing pressing knife performs hot pressing on the edge of the diaphragm layer group in a third direction so as to seal edges.
Compared with the prior art, the invention has the beneficial effects that:
1. in the use of the hot pressing knife assembly, the heating piece can heat the cutting pressing knife and the edge sealing pressing knife simultaneously, when the cutting pressing knife cuts the diaphragm, the edge sealing pressing knife is synchronous, the edge positions of the cutting positions, which are generated by the cutting pressing knife, of the diaphragm along the two ends of the first direction are hot pressed, the edge can be well compounded with edge sealing through the hot pressing action, and meanwhile, the temperature of the cutting positions in the diaphragm and the temperature of the adjacent edges of the cutting positions are in an isothermal state, so that the edge warping condition of the edges of the diaphragm layer group is reduced, and the edge sealing effect of the diaphragm is improved.
2. When the diaphragm cutting device works, the unreeling mechanism transmits the diaphragm layer group along the second direction, and the edge sealing press knife heats under the heating action of the heating piece; the cutting press knife cuts the diaphragm layer group, and synchronous, edge sealing press knife carries out hot pressing to the edge positions of the cutting positions in the diaphragm layer group along the two sides of the first direction, and the hot pressing action can be good compound edge sealing of the edge of the diaphragm layer group, and meanwhile the cutting position temperature of the diaphragm layer group and the edge temperature connected with the cutting positions are in an isothermal state, so that the situation that the edge of the diaphragm layer group is warped is reduced, and the edge sealing effect of the diaphragm layer group is improved.
Drawings
Fig. 1 is a schematic structural view of a hot knife assembly according to the present invention.
Fig. 2 is a schematic view showing a state of a thermo-compression knife cutting a separator according to the present invention.
Fig. 3 is a schematic structural view of the diaphragm cutting device of the present invention.
FIG. 4 is a schematic diagram of a cutting position and a pressing position of a separator layer assembly according to the present invention.
Wherein the reference numerals have the following meanings:
1. cutting and pressing the cutter; 11. a blade body; 12. a blade section; 2. edge sealing and pressing knife; 21. a pressing part; 3. a heating block; 4. a separator layer group; 41. a diaphragm; 42. a pole piece layer; 43. a pole piece; 44. a tab; 5. an unreeling mechanism; A. cutting position of the blade part; B. the pressing part presses the position.
Detailed Description
The invention will be further described with reference to the accompanying drawings and detailed description below:
in the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the case of example 1,
as shown in fig. 1 to 2, a hot press blade assembly includes a cutting press blade 1, an edge sealing press blade 2, and a heating member. The cutting press 1 has a first direction and a second direction, and the first direction is perpendicular to the second direction; the first direction is the longitudinal direction of the cutting edge of the cutting blade 1, and the second direction is the direction perpendicular to the longitudinal direction of the cutting edge of the cutting blade 1. The cutting blade 1 has a blade portion 12 extending in the first direction, and the cutting blade 1 realizes a cutting function by the blade portion 12. The edge portion 12 is provided with the above-described edge sealing press blade 2 at both ends in the first direction, the edge sealing press blade 2 has a press portion 21 extending in the second direction, and the edge sealing press blade 2 realizes a press function through the press portion 21. The heating piece is used for heating the cutting press 1 and the edge sealing press 2.
It should be noted that, the hot pressing knife assembly of the present embodiment is mainly used for cutting a double-layer diaphragm, and forms a double-layer composite diaphragm structure (as shown in fig. 3) through pressing. In use, the membrane 41 is transported in a line transport direction extending in the second direction; the heating piece can heat cutting press 1 and banding press 2 simultaneously, when cutting press 1 cuts diaphragm 41, synchronous banding press 2 can carry out hot pressing to the edge position that the cutting position that produces because cutting press 1 in diaphragm 41 follows the first direction both ends, this hot pressing action can make this edge good compound banding, make the temperature of cutting position in diaphragm 41 and the temperature of cutting position adjacent edge be in isothermal state simultaneously, reduce the condition that the perk appears in the edge of this diaphragm 41 from this, and then improve the banding effect of diaphragm 41.
Meanwhile, the thermo-compression blade assembly of the present embodiment may be a single thermo-compression blade that performs post-cutting thermo-compression on the double-layered separator 41, or two thermo-compression blades that performs post-cutting thermo-compression on the double-layered separator 41, which are described below for both cases: (1) When a single hot pressing knife is used, the double-layer diaphragm 41 is placed on a working platform of a working production line, the cutting pressing knife 1 cuts the double-layer diaphragm 41 at the same time, and the edge sealing pressing knife 2 carries out hot pressing on the corresponding edge of the double-layer diaphragm 41. (2) When two hot pressing cutters are used, the two hot pressing cutters respectively correspond to the double-layer diaphragm 41, the two hot pressing cutters are arranged at two sides of the double-layer diaphragm 41 in the row direction, and the two hot pressing cutters correspond to each other; the two cutting press cutters 1 respectively cut the corresponding diaphragm 41, and simultaneously the two opposite edge sealing press cutters 2 in the two hot press cutters are used for simultaneously pressing the corresponding edges of the double-layer diaphragm 41. Realize two hot pressing cutters to same direction simultaneously cut and pressfitting's function.
Further, the nip end of the nip portion 21 is aligned with the cutting end of the blade portion 12. Specifically, the pressing end of the pressing portion and the cutting end of the blade portion are aligned in a third direction, and the third direction can cut the height direction of the pressing blade, that is, the pressing end and the blade portion are aligned in a horizontal plane, so when the diaphragm 41 and the edge of the pressing diaphragm 41 are cut by the hot pressing blade, the blade portion 12 of the cutting pressing blade 1 and the pressing portion 21 of the edge sealing pressing blade 2 can be simultaneously contacted with the diaphragm 41, so that the cutting position of the corresponding cutting pressing blade 1 in the diaphragm and the adjacent edge of the cutting position can be kept in a constant temperature state at any time, thereby further effectively reducing the edge warping condition of the adjacent edge of the cutting position in the diaphragm 41, and further improving the edge sealing effect of the diaphragm 41.
Further, the nip 21 extends in the second direction beyond the blade 12 of the cutting blade 1 and is perpendicular to the blade of the cutting blade. By defining the extending direction of the pressing portion 21, the pressing portion 21 of the edge sealing pressing blade 2 extends from the blade portion 12 of the cutting pressing blade 1 in the second direction when the cutting pressing blade 1 cuts the separator 41, and the extending blade portion 12 inevitably contacts the edge of the separator 41 adjacent to the cutting position generated when the cutting pressing blade 1 cuts in the first direction, so that the edge sealing pressing blade 2 accurately presses the edge of the separator 41 to realize the function of pressing the edge sealing.
Further, the end of the blade 12 is connected to the middle end of the nip 21 in the second direction. Thereby, by defining the connection position between the nip portion 21 and the blade portion 12, the nip portion 21 is caused to protrude from both sides of the blade portion 12 in the second direction. Because the hot pressing knife is continuous in cutting and pressing actions, the double-layer composite diaphragm structure is continuously and one by one cut. The edge portion 12 is connected to the middle end of the pressing portion 21 in the second direction, so when the cutting press knife 1 cuts the diaphragm 41, the pressing portion 21 of the edge sealing press knife 2 can simultaneously perform hot-press edge sealing on the edges of the front and rear two to-be-completed double-layer composite diaphragm structures, so as to improve the processing efficiency.
Since the pole piece 43 is generally arranged between the two-layer composite membrane structures, the pole piece 43 applied in the embodiment has the pole lug 44 along the first direction, and the pole lug 44 protrudes out of the membrane. The pole piece 43 is electrically connected with the battery pole through the pole lug 44. Therefore, the following arrangement is further adopted, wherein the length of one edge sealing press knife 2 along the second direction is longer than the length of the other edge sealing press knife 2 along the second direction. Therefore, when the edge sealing press knife 2 presses the edge of the diaphragm 41, the shorter edge sealing press knife 2 is arranged on one side close to the lug 44, so that the situation that the edge sealing press knife 2 presses the pole piece 43 and the lug 44 is reduced.
Further, the cutting press 1 includes a blade body 11, a blade portion 12 is connected to the blade body 11, and a heating member is connected to the blade body 11. Therefore, the heating piece is arranged at the position of the cutter body 11 of the cutting press cutter 1, and when the heating piece heats, heat can be transmitted to the two edge sealing press cutters 2 through the heat conduction action of the cutting press cutter 1, so that the heating efficiency of the two edge sealing press cutters 2 is improved.
Further, the heating element is a heating block 3. The actual area of the heating block 3 in contact with the object is generally larger than the actual area of the resistance wire in contact with the object, compared to the resistance wire, so that the heating block 3 can transfer heat to the corresponding object faster and better than the resistance wire. Therefore, the heating block 3 has better heating effect than the prior art adopting the resistance wire, the heating temperature is not affected by other factors, the heating temperature received by the edge sealing press knife 2 is stable, when the edge of the diaphragm 41 is hot-pressed by the edge sealing press knife 2, the edge of the diaphragm 41 can be well pressed, and the good edge sealing effect of the diaphragm 41 is improved.
In the case of example 2,
as shown in fig. 1 to 4, a diaphragm cutting device includes an unreeling mechanism 5, a diaphragm layer group 4, and a hot press blade assembly as described in example 1. The unreeling mechanism 5 is used for unreeling the diaphragm along a second direction; the cutting press 1 is used for cutting the diaphragm layer group 4 along a third direction, and the third direction is perpendicular to the first direction and the second direction; the edge sealing pressing knife 2 is used for pressing the edge of the diaphragm layer group 4 along the third direction, and the edge of the diaphragm layer group 4 is the edge of the diaphragm layer group 4 adjacent to the cutting position generated by cutting the cutting pressing knife 1 in the diaphragm 41.
Note that the separator 41 cutting device of the present embodiment mainly uses the hot press blade assembly of embodiment 1. When the hot pressing cutter assembly realizes synchronous cutting and pressing of the diaphragm layer group 4 along the third direction, the hot pressing cutter assembly can be controlled to work in a manual mode, or the hot pressing cutter assembly can be controlled to work in a semi-automatic or full-automatic mode by connecting an executing mechanism. The actuating mechanism can be an air cylinder, a hydraulic cylinder, an actuating motor, a screw transmission mechanism and the like and is used for driving the hot pressing cutter assembly to advance or retreat along a third direction.
When the diaphragm cutting device of the embodiment works, the unreeling mechanism 5 transmits the diaphragm layer group 4 along the second direction, and the edge sealing press knife 2 heats under the heating action of the heating piece; the cutting press knife 1 cuts the diaphragm layer group 4 through a manual operation or an executing mechanism, and synchronously drives the edge sealing press knife 2 to carry out hot pressing on edge positions of cutting positions in the diaphragm layer group 4 along two sides of the first direction, and the hot pressing action can enable the edge of the diaphragm layer group 4 to be well composited with edge sealing, and meanwhile the temperature of the cutting positions of the diaphragm layer group 4 and the temperature of the edge connected with the cutting positions are in an isothermal state, so that the edge warping condition of the edge of the diaphragm layer group 4 is reduced, and the edge sealing effect of the diaphragm layer group 4 is improved.
Further, the membrane layer group 4 comprises a pole piece layer 42 and two membranes 41 which are stacked in parallel along a third direction, the pole piece layer 42 is positioned between the two membranes 41, the pole piece layer 42 comprises a plurality of pole pieces 43 which are distributed at equal intervals along a second direction, one end of each pole piece 43 along the first direction is provided with a pole lug 44, and the pole lugs 44 protrude out of the edges of the membranes 41. The cutting position of the cutting press 1 is located at a spaced position between the adjacent pole pieces 43, and the edge sealing press 2 corresponds to the edges of the diaphragm 41 and the pole pieces 43 in the first direction at the same time.
It should be noted that, the pole piece layer 42 and the two diaphragms 41 of the diaphragm layer group 4 are stacked by taking and placing the pole pieces through the clamping jaw structure of the mechanical arm, the diaphragms are unreeled or rolled through the unreeled mechanism, the unreeled mechanism 5 is a structure for realizing reel unreeled or rolled through motor control, the unreeled directions of the independent diaphragm unreeled mechanisms 5 are consistent during operation, and the unreeled speeds are consistent at the same time, so as to maintain the function of synchronous movement of the integral structure of the diaphragm layer group 4.
Wherein, each pole piece 43 in the pole piece layer 42 corresponds to a double-layer composite diaphragm 41 structure to be processed. Thus, by defining the cutting position of the cutting press 1, it is advantageous to separate each pole piece 43 of the pole piece layer 42 independently. Meanwhile, the edge sealing position of the edge sealing pressing knife 2 is limited, so that when the edge sealing pressing knife 2 is used for pressing the diaphragm 41, the mounting position of the pole piece 43 in the double-layer diaphragm 41 is stabilized, and the structural stability of the double-layer composite diaphragm 41 structure obtained through cutting and pressing is improved.
Further, the number of the hot pressing cutter assemblies is two, the two hot pressing cutter assemblies are distributed on two sides of the diaphragm layer group 4 along the third direction, and the cutting press cutters 1 and the edge sealing press cutters 2 of the two hot pressing cutter assemblies are oppositely arranged along the third direction. Therefore, the number and the positions of the hot pressing cutter assemblies are limited, and the two hot pressing cutter assemblies can cut the diaphragms 41 on two sides simultaneously in operation, and simultaneously the edges of the two diaphragms 41 are pressed oppositely by the two hot pressing cutter assemblies simultaneously, so that the synchronous hot pressing edge sealing effect is realized, and the beneficial effect of improving the processing efficiency is achieved.
In the case of example 3,
the embodiment provides a diaphragm cutting method, which comprises the following steps,
step one, arranging the diaphragm cutting devices in the above embodiment 1 and embodiment 2 symmetrically in a third direction of the diaphragm layer group;
step two, a heating piece of the diaphragm cutting device heats the cutting press knife and the edge sealing press knife;
thirdly, hot-pressing and cutting the diaphragm layer group in a third direction by a cutting pressing knife of the diaphragm cutting device; and meanwhile, the edge sealing pressing knife performs hot pressing on the edge of the diaphragm layer group in a third direction so as to seal edges.
The third direction is the height direction of the diaphragm group, and the diaphragm cutting devices may be symmetrically disposed above and below the diaphragm group.
When the diaphragm cutting action is carried out, as the hot pressing knife assembly of the diaphragm layer group synchronously cuts and presses the diaphragm layer group along the third direction, the hot pressing knife assembly can be controlled to work in a manual mode or can be controlled to work in a semi-automatic or full-automatic mode by connecting an executing mechanism. The actuating mechanism can be an air cylinder, a hydraulic cylinder, an actuating motor, a screw transmission mechanism and the like and is used for driving the hot pressing cutter assembly to advance or retreat along a third direction.
The unreeling mechanism transmits the diaphragm layer group along the second direction, and the edge sealing pressing knife heats under the heating action of the heating piece; the cutting pressing knife cuts the diaphragm layer group through manual operation or an actuating mechanism, and synchronously drives the edge sealing pressing knife to carry out hot pressing on edge positions of cutting positions in the diaphragm layer group along two sides of the first direction, and the hot pressing action can enable the edge of the diaphragm layer group to be well composited with edge sealing, and meanwhile the temperature of the cutting positions of the diaphragm layer group and the temperature of the edge connected with the cutting positions are in an isothermal state, so that the situation that edge warping occurs on the edge of the diaphragm layer group is reduced, and the edge sealing effect of the diaphragm layer group is improved.
Further, in the second step, the heating temperature of the cutting press is controlled to be 230+/-40 ℃; and the heating temperature of the edge sealing press knife is controlled to be 170+/-20 ℃.
It should be noted that, the cutting press knife can ensure that the diaphragm is cut at the cutting temperature of 230±40 ℃ and the situation of adhesion can not appear, the edge sealing press knife can press the diaphragm at the temperature of 170±20 ℃, if the temperature is too high, the situation of damage can appear on the diaphragm, and if the temperature of the edge sealing press knife is too low, the edge curling easily appears when the edge sealing press knife presses the diaphragm, and the edge pressing effect can not be achieved, so the embodiment selects the temperature of 170±20 ℃.
Further, the length of the cutting press in the present embodiment is 750mm; the length of the edge sealing press knife is 140mm.
Under the condition that the length of the cutting pressing knife is 750mm, the cutting of the diaphragm can be met, and if the length of the cutting pressing knife is too short, the situation that the edge of the diaphragm is not cut off can occur.
In addition, the length of the edge sealing pressing knife can just press the diaphragm under the condition of 140mm, if the length of the edge sealing pressing knife is too long, the pole lug damage pole piece can be cut, and the situation that the edge of the diaphragm cannot be pressed easily occurs when the length of the edge sealing pressing knife is too short, so that the edge sealing effect is poor.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (13)
1. The hot press cutter assembly is characterized by comprising a cutting press cutter (1), an edge sealing press cutter (2) and a heating piece, wherein the cutting press cutter (1) has a first direction and a second direction, and the first direction is intersected with the second direction; the cutting press (1) has a blade portion (12) extending in the first direction; the edge sealing press cutters (2) are arranged at two ends of the cutting edge part (12) in the first direction; the edge sealing press knife (2) is provided with a pressing part (21); the heating piece is used for heating the cutting press knife (1) and the edge sealing press knife (2).
2. The hot knife assembly according to claim 1, wherein the nip end of the nip portion (21) is aligned with the cutting end of the blade portion (12) in a third direction; the third direction is perpendicular to the first direction and the second direction; the first direction and the second direction are approximately perpendicular.
3. Hot knife assembly according to claim 1, characterized in that the nip (21) extends in the second direction beyond the edge portion (12) of the cutting knife (1).
4. The hot knife assembly according to claim 2, wherein an end of the blade portion (12) is connected to a middle end of the nip (21) in the second direction.
5. The hot press blade assembly according to claim 4, wherein a length of one of the edge sealing blades (2) in the second direction is greater than a length of the other edge sealing blade (2) in the second direction.
6. Hot knife assembly according to claim 1, characterized in that the cutting knife (1) comprises a blade (11), the blade portion (12) being connected to the blade (11), the heating element being connected to the blade (11).
7. Hot knife assembly according to claim 1, wherein the heating element is a heating block (3).
8. A diaphragm cutting device, characterized by comprising an unreeling mechanism (5), a diaphragm layer group (4), and a hot-press knife assembly according to any one of claims 1-7, the unreeling mechanism (5) being adapted to unreel the diaphragm layer group (4) in the second direction; the cutting press (1) is used for cutting the diaphragm layer group (4) along a third direction, and the third direction is perpendicular to the first direction and the second direction; the edge sealing pressing knife (2) is used for pressing the edges of the diaphragm layer group (4) along the third direction.
9. The diaphragm cutting device according to claim 8, wherein the diaphragm layer group (4) comprises a pole piece layer (42) and two diaphragms (41) which are stacked in parallel along the third direction, the pole piece layer (42) is positioned between the two diaphragms (41), the pole piece layer (42) comprises a plurality of pole pieces (43) which are arranged at intervals along the second direction, the cutting position of the cutting press knife (1) is positioned at an interval position between the adjacent pole pieces (43), and the edge sealing press knife (2) corresponds to the edges of the diaphragms (41) and the pole pieces (43) along the first direction.
10. The diaphragm cutting device according to claim 8, wherein the number of the hot pressing knife assemblies is two, the two hot pressing knife assemblies are distributed on two sides of the diaphragm layer group (4) along the third direction, and the cutting pressing knife (1) and the edge sealing pressing knife (2) of the two hot pressing knives are oppositely arranged along the third direction.
11. A method for cutting a diaphragm is characterized by comprising the steps of,
symmetrically arranging the diaphragm cutting device according to any one of claims 8-10 in a third direction of a diaphragm layer group;
step two, a heating piece of the diaphragm cutting device heats the cutting press knife and the edge sealing press knife;
thirdly, hot-pressing and cutting the diaphragm layer group in a third direction by a cutting pressing knife of the diaphragm cutting device; and meanwhile, the edge sealing pressing knife performs hot pressing on the edge of the diaphragm layer group in a third direction so as to seal edges.
12. The method of claim 11, wherein in the second step, the heating temperature of the cutting press is controlled to be 230+ -40 ℃; the heating temperature of the edge sealing press knife is controlled to be 170+/-20 ℃.
13. The method of cutting a diaphragm of claim 11, wherein the cutting blade length is 750mm; the length of the edge sealing press knife is 140mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310669757.9A CN116373327A (en) | 2023-06-07 | 2023-06-07 | Hot-pressing cutter assembly, diaphragm cutting device and diaphragm cutting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310669757.9A CN116373327A (en) | 2023-06-07 | 2023-06-07 | Hot-pressing cutter assembly, diaphragm cutting device and diaphragm cutting method |
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| CN116373327A true CN116373327A (en) | 2023-07-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209912978U (en) * | 2019-06-26 | 2020-01-07 | 东莞市佳的自动化设备科技有限公司 | Lithium battery compound machine |
| CN211281722U (en) * | 2019-12-24 | 2020-08-18 | 叶大威 | Sealing device and packaging machine |
| CN111933995A (en) * | 2020-09-09 | 2020-11-13 | 深圳市舜源自动化科技有限公司 | Cutting and folding integrated machine |
| CN212412108U (en) * | 2020-06-30 | 2021-01-26 | 蜂巢能源科技有限公司 | Battery pole piece thermal compounding device and battery lamination equipment |
| CN217740592U (en) * | 2022-03-24 | 2022-11-04 | 无锡先导智能装备股份有限公司 | Slicing device and lamination system |
-
2023
- 2023-06-07 CN CN202310669757.9A patent/CN116373327A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209912978U (en) * | 2019-06-26 | 2020-01-07 | 东莞市佳的自动化设备科技有限公司 | Lithium battery compound machine |
| CN211281722U (en) * | 2019-12-24 | 2020-08-18 | 叶大威 | Sealing device and packaging machine |
| CN212412108U (en) * | 2020-06-30 | 2021-01-26 | 蜂巢能源科技有限公司 | Battery pole piece thermal compounding device and battery lamination equipment |
| CN111933995A (en) * | 2020-09-09 | 2020-11-13 | 深圳市舜源自动化科技有限公司 | Cutting and folding integrated machine |
| CN217740592U (en) * | 2022-03-24 | 2022-11-04 | 无锡先导智能装备股份有限公司 | Slicing device and lamination system |
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Application publication date: 20230704 |