CN112478901A - Thermal compounding equipment - Google Patents
Thermal compounding equipment Download PDFInfo
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- CN112478901A CN112478901A CN202011447092.XA CN202011447092A CN112478901A CN 112478901 A CN112478901 A CN 112478901A CN 202011447092 A CN202011447092 A CN 202011447092A CN 112478901 A CN112478901 A CN 112478901A
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- compounding
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- 238000013329 compounding Methods 0.000 title claims abstract description 97
- 239000000463 material Substances 0.000 claims abstract description 251
- 239000002131 composite material Substances 0.000 claims abstract description 128
- 238000007731 hot pressing Methods 0.000 claims abstract description 95
- 238000004804 winding Methods 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 13
- 239000013077 target material Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 abstract description 47
- 230000006798 recombination Effects 0.000 abstract 1
- 238000005215 recombination Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
- B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H16/00—Unwinding, paying-out webs
- B65H16/10—Arrangements for effecting positive rotation of web roll
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/08—Web-winding mechanisms
- B65H18/10—Mechanisms in which power is applied to web-roll spindle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/30—Arrangements for accumulating surplus web
- B65H20/32—Arrangements for accumulating surplus web by making loops
- B65H20/34—Arrangements for accumulating surplus web by making loops with rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/72—Fuel cell manufacture
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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
Abstract
The invention provides thermal compound equipment which comprises an unwinding assembly, a winding assembly, a compound assembly and a fixing plate, wherein the unwinding assembly, the winding assembly and the compound assembly are arranged on one side of the fixing plate and are fixedly connected with the fixing plate; the unwinding assembly is used for releasing the material to be compounded, the material to be compounded forms a composite material through the compounding assembly, and the winding assembly is used for winding the composite material; the unwinding assembly comprises a first unwinding assembly, a second unwinding assembly and a third unwinding assembly, and the first unwinding assembly, the second unwinding assembly and the third unwinding assembly are respectively used for releasing a first material to be compounded, a second material to be compounded and a third material to be compounded; the composite assembly is used for thermally compounding a first material to be compounded, a second material to be compounded and a third material to be compounded which are arranged in a stacked mode to obtain a composite material, the composite assembly comprises hot pressing rollers which are arranged oppositely, the hot pressing rollers are used for attaching and fixing two side edges of the first material to be compounded and the second material to be compounded, and the first material to be compounded and the second material to be compounded are matched to clamp the third material to be compounded. The invention can improve the heat recombination efficiency.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to thermal compound equipment.
Background
The pole piece and the diaphragm are indispensable raw materials for battery production, the diaphragm and the pole piece are compounded in advance and then wound, so that the covering performance of the battery in the winding process can be effectively improved, the folding of the diaphragm in the winding process is reduced, and the mechanism quantity of winding equipment is greatly reduced.
The existing compounding equipment comprises a pair of hot-pressing rollers, wherein one side of a pole piece is usually adsorbed on the surface of one hot-pressing roller, a diaphragm is adsorbed on the surface of the other hot-pressing roller, one side of the pole piece is compounded with one layer of diaphragm through the hot-pressing rollers, the other side of the pole piece is compounded with the other layer of diaphragm through the hot-pressing rollers, and the diaphragm-pole piece-diaphragm composite material is formed through twice thermal compounding. Therefore, the compounding mode of the thermal compounding equipment in the prior art is complex, and the thermal compounding efficiency is low.
Disclosure of Invention
The embodiment of the invention provides thermal compounding equipment, which is used for improving the thermal compounding efficiency of the thermal compounding equipment in the prior art.
The embodiment of the invention provides thermal compounding equipment, which comprises an unwinding assembly, a winding assembly, a compounding assembly and a fixing plate, wherein,
the unwinding assembly, the winding assembly and the composite assembly are arranged on one side of the fixed plate and are fixedly connected with the fixed plate; the unwinding assembly is used for releasing a material to be compounded, the material to be compounded forms a composite material through the compounding assembly, and the winding assembly is used for winding the composite material;
the unwinding assembly comprises a first unwinding assembly, a second unwinding assembly and a third unwinding assembly, and the first unwinding assembly, the second unwinding assembly and the third unwinding assembly are respectively used for releasing a first material to be compounded, a second material to be compounded and a third material to be compounded;
the composite assembly is used for compounding a first material to be compounded, a second material to be compounded and a third material to be compounded which are stacked to obtain the composite material, the composite assembly comprises oppositely arranged hot press rollers, the oppositely arranged hot press rollers are used for fixedly attaching two side edges of the first material to be compounded and the second material to be compounded, and the first material to be compounded and the second material to be compounded are matched to clamp the third material to be compounded.
Optionally, the composite assembly includes a first composite assembly, and the first composite assembly is used for fixedly attaching two side edges of the first material to be composited and the second material to be composited, and fixedly attaching two side surfaces of the third material to be composited to the first material to be composited and the second material to be composited respectively;
first composite component is including relative first hot pressing roller and the second hot pressing roller that sets up, first hot pressing roller with the second hot pressing roller can switch between first state and second state under the second state, form between first hot pressing roller and the second hot pressing roller and be used for first waiting composite material, second wait composite material and third wait the first clearance that composite material passes through.
Optionally, the first hot-pressing roller is a rubber roller, and the second hot-pressing roller is a metal roller; and a first heater is arranged on one side of the second hot-pressing roller and used for heating the second hot-pressing roller.
Optionally, the composite assembly comprises a second composite assembly, the second composite assembly is used for attaching and fixing two side edges of the first material to be compounded and the second material to be compounded in the composite material, and the third material to be compounded is accommodated in an accommodating bag formed by matching the first material to be compounded and the third material to be compounded;
the second composite assembly comprises a third hot pressing roller and a fourth hot pressing roller which are arranged oppositely, the fourth hot pressing roller comprises a first rotating shaft, a first hot pressing part and a second hot pressing part, the first hot pressing part and the second hot pressing part are arranged in a disc shape, and the diameters of the first hot pressing part and the second hot pressing part are larger than that of the first rotating shaft; the first hot pressing piece and the second hot pressing piece are symmetrically arranged at two ends of the first rotating shaft;
the third hot press roll and the fourth hot press roll may be switched between a third state and a fourth state, in which the first hot press part and the second hot press part form a second gap and a third gap for the first material to be compounded and the second material to be compounded to pass through, respectively, with the third hot press roll.
Optionally, the third hot-pressing roller is a rubber roller, and the fourth hot-pressing roller is a metal roller; and a second heater is arranged on one side of the fourth hot-pressing roller and used for heating the fourth hot-pressing roller.
Optionally, the thermal compound device further comprises a sheet feeding assembly, wherein the sheet feeding assembly is arranged between the third unreeling assembly and the compound assembly and is fixedly connected with the fixing plate;
the feeding piece assembly comprises a conveying piece and a cutting piece, the conveying piece comprises oppositely arranged clamping plates for clamping the third material to be compounded, and the conveying piece can move along a first direction;
the cutting piece is arranged on one side, close to the composite component, of the conveying piece and used for cutting the third material to be composited.
Optionally, the thermal compound device further comprises a preheating assembly, wherein the preheating assembly is arranged between the inlet assembly and the compound assembly and is fixedly connected with the fixing plate;
the preheating assembly comprises a third heater, and the third heater is used for preheating the first material to be compounded, the second material to be compounded and the third material to be compounded.
Optionally, the thermal compound device further includes at least one buffer component, and the at least one buffer component is disposed between the third unwinding component and the compound component and/or between the compound component and the winding component, and is fixedly connected to the fixing plate;
the buffer memory assembly comprises a guide rail and a first roller, and the guide rail can move in a second direction to control the unreeling speed of the third unreeling assembly or control the reeling speed of the reeling assembly; the second direction is a length direction of the guide rail.
Optionally, the thermal compound device further comprises at least one tension control assembly, and the at least one tension control assembly is arranged on the fixing plate and is fixedly connected with the fixing plate;
the tension control assembly comprises a floating roller and at least two second rollers, a target material to be compounded is conveyed to the compounding assembly through the floating roller and the at least two second rollers to be compounded, the target material to be compounded is a first material to be compounded or a second material to be compounded, and the floating roller can move in a third direction.
Optionally, the first material to be compounded and the second material to be compounded are both diaphragms, and the third material to be compounded is a pole piece.
According to the embodiment of the invention, the first material to be compounded, the second material to be compounded and the third material to be compounded are transmitted to the compounding assembly through the first unreeling assembly, the second unreeling assembly and the third unreeling assembly to be thermally compounded, and the obtained compound material is recovered by the reeling assembly, so that the first material to be compounded, the second material to be compounded and the third material to be compounded can be compounded at one time, and the thermal compounding efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a thermal compounding device provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a composite material provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first composite assembly provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a second composite component provided by an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an insert assembly according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Referring to fig. 1 to 4, the present invention provides a thermal compound apparatus, which includes an unwinding assembly, a winding assembly 200, a compound assembly 300, and a fixing plate 400, wherein,
the unwinding assembly, the winding assembly 200 and the composite assembly 300 are all arranged on one side of the fixing plate 400 and are fixedly connected with the fixing plate 400; the unwinding assembly is used for releasing a material to be compounded, the material to be compounded forms a composite material through the composite assembly 300, and the winding assembly 200 is used for winding the composite material;
the unreeling assemblies comprise a first unreeling assembly 110, a second unreeling assembly 120 and a third unreeling assembly 130, which are respectively used for releasing a first material to be compounded, a second material to be compounded and a third material to be compounded;
the composite assembly 300 is used for compounding a first material to be compounded, a second material to be compounded and a third material to be compounded which are stacked to obtain the composite material, and comprises oppositely arranged hot press rollers, wherein the oppositely arranged hot press rollers are used for fixedly attaching two side edges of the first material to be compounded and the second material to be compounded, and the first material to be compounded and the second material to be compounded are matched to clamp the third material to be compounded.
In an embodiment of the present invention, the thermal compound apparatus may be a vertical apparatus, the fixing plate 400 may be vertically disposed, and the unwinding assembly, the winding assembly 200, and the compound assembly 300 may be fixedly disposed on one side of the fixing plate 400. Specifically, the connection modes of the unwinding assembly, the winding assembly 200, the composite assembly 300 and the fixing plate 400 may be set according to actual needs, and in the embodiment of the present invention, the unwinding assembly, the winding assembly 200, and the composite assembly may be fixedly connected by a bolt. In other alternative embodiments, the unwinding assembly, the winding assembly 200 and the composite assembly 300 may also be fixedly connected to the fixing plate 400 by bonding or welding.
It should be understood that the thermal compound apparatus may further include a plurality of fixing plates 400, the fixing plates 400 are enclosed to form a box body to accommodate the unwinding assembly, the winding assembly 200 and the compound assembly 300, and the unwinding assembly, the winding assembly 200 and the compound assembly 300 may be disposed on the fixing plate 400 on one side of the box body.
The unreeling assembly can comprise a motor and a rotating shaft, the to-be-compounded material can be reeled on the rotating shaft, and the rotating shaft is driven to rotate by the motor, so that the to-be-compounded material can be released from a reeling state. It can be understood that the motor can control the unwinding speed of the material to be compounded by adjusting the rotating speed. One end of the material to be compounded can be bonded with the rotating shaft, and the rotating shaft can also be provided with an anti-slip material, so that the material to be compounded is prevented from sliding on the rotating shaft.
The first, second, and third unwinding assemblies 110, 120, and 130 may have the same structure and are respectively disposed on three sides of the composite assembly 300. It should be understood that the diameters of the rotating shafts of the first unwinding assembly 110, the second unwinding assembly 120 and the third unwinding assembly 130 may be specifically set according to the materials to be combined wound by the rotating shafts.
Similarly, the winding assembly 200 may also be disposed at one side of the composite assembly 300, and the structure thereof may be similar to the unwinding assembly, and includes a rotating shaft and a motor, for winding the composite material on the rotating shaft.
In the embodiment of the present invention, the composite assembly 300 is configured to at least partially attach two sides of the third material to be combined to the first material to be combined and the second material to be combined, and the first material to be combined and the second material to be combined clamp the third material to be combined in the thermal compounding process of the composite assembly 300.
In this case, the diameters of the rotating shafts of the first unwinding assembly 110 and the second unwinding assembly 120 are the same, and the first unwinding assembly and the second unwinding assembly may be symmetrically arranged in the horizontal direction, and a channel for the third material to be laminated to pass through is left in the middle. In the thermal compounding process, the first material to be compounded and the second material to be compounded are generally flexible materials, and in order to prevent the first material to be compounded and the second material to be compounded from wrinkling, the first unwinding assembly 110 and the second unwinding assembly 120 may be disposed above the compounding assembly 300, so that the first material to be compounded and the second material to be compounded are kept flat by gravity during compounding.
The third material to be laminated is generally a material having a certain hardness, and therefore, the position of the third unwinding assembly 130 may be set according to the spatial arrangement of the thermal laminating apparatus, and the third material to be laminated may pass through a plurality of rollers and be finally transferred to a channel left between the first unwinding assembly 110 and the second unwinding assembly 120.
The composite equipment can comprise oppositely arranged hot press rollers, a gap for the first material to be composite, the second material to be composite and the third material to be composite to pass through can be formed between the oppositely arranged hot press rollers, in the thermal composite process, the hot press rollers are in a high-temperature state, pressure is applied to the first material to be composite, the second material to be composite and the third material to be composite in the horizontal direction, the two side edges of the first material to be composite and the second material to be composite are attached and fixed, and the third material to be composite is clamped in a matching mode, so that the composite material is obtained. Specifically, referring to fig. 2, it can be seen from fig. 2 that the widths of the first material to be compounded and the second material to be compounded may be greater than the width of the third material to be compounded, and the side edges a and b of the first material to be compounded and the second material to be compounded are attached and fixed, so that the third material to be compounded can be clamped in a matching manner. The third material to be compounded may also be respectively bonded and fixed with the first material to be compounded and the second material to be compounded, or may be only contained in a containing bag formed by matching the first material to be compounded and the second material to be compounded, and the third material to be compounded may be specifically set according to actual needs, and is not further limited herein.
It is understood that the first material to be compounded and the second material to be compounded may pass through the compounding assembly 300 in advance and be converged to the take-up assembly 200 before the thermal compounding process. In this way, in the thermal compounding process, only the first unwinding assembly 110, the second unwinding assembly 120 and the third unwinding assembly 130 need to be started for unwinding, and when the third material to be compounded reaches the compounding assembly 300, the oppositely arranged hot press rollers are attached to perform the thermal compounding process.
Of course, the opposing hot press rolls may be always in a bonded state, and the first material to be laminated and the second material to be laminated may be thermally laminated when the third material to be laminated does not reach the composite module 300, and the first material to be laminated and the second material to be laminated may sandwich the third material to be laminated and may be wound into the gap formed by the opposing hot press rolls when the third material to be laminated reaches the composite module 300.
According to the embodiment of the invention, the first material to be compounded, the second material to be compounded and the third material to be compounded are transmitted to the compounding assembly 300 through the first unreeling assembly 110, the second unreeling assembly 120 and the third unreeling assembly 130 for heat compounding, and the obtained compound material is recovered through the reeling assembly 200, so that the first material to be compounded, the second material to be compounded and the third material to be compounded can be compounded at the same time, and the heat compounding efficiency is improved.
Optionally, the composite assembly 300 may include a first composite assembly 310, where the first composite assembly 310 is configured to attach and fix two side edges of the first material to be composited and the second material to be composited, and attach and fix two side edges of the third material to be composited and the first material to be composited and the second material to be composited, respectively.
The first composite assembly 310 may include a first hot-press roll 311 and a second hot-press roll 312 that are disposed opposite to each other, and the first hot-press roll 311 and the second hot-press roll 312 may be switched between a first state and a second state, and in the second state, a first gap for passing the first material to be composite, the second material to be composite, and the third material to be composite is formed between the first hot-press roll 311 and the second hot-press roll 312.
Referring to fig. 3 and fig. 3 are schematic structural views of a first composite component, the first composite component 310 may be a full-face composite component 300, and is used for entirely adhering the first material to be compounded and the second material to be compounded to the third material to be compounded. Therefore, the first hot press roller 311 and the second hot press roller 312 included in the first composite member 310 may be arranged in a cylindrical shape and may be switched between the first state and the second state.
In the first state, a channel is formed between the first hot press roller 311 and the second hot press roller 312, the first material to be compounded and the second material to be compounded are respectively attached to both sides of the first hot press roller 311 and the second hot press roller 312 and are converged on the winding assembly 200, and when the third material to be compounded reaches the composite assembly 300, the first composite assembly 310 may be switched to the second state to form a first gap through which the first material to be compounded, the second material to be compounded and the third material to be compounded pass.
It is to be understood that, in order to attach the first material to be compounded, the second material to be compounded, and the third material to be compounded, the first hot-pressing roller 311 and the second hot-pressing roller 312 may be made of a material having elasticity.
Specifically, the first composite assembly 310 may shift the first hot press roller 311 and the second hot press roller 312 in opposite directions, so that the distance between the first hot press roller 311 and the second hot press roller 312 decreases from large to small, thereby switching the first state to the second state. The first composite module 310 may be switched between the first state and the second state by rotating the first hot press roller 311 and the second hot press roller 312 along a rotating arm so that a distance between the first hot press roller 311 and the second hot press roller 312 is decreased. The specific setting can be carried out according to actual needs, and is not further limited herein.
It should be understood that, referring to fig. 2, since there is a thickness difference between the side a, the side b and the middle portion including the third material to be laminated, in order to realize the whole-surface lamination, the first hot-press roller 311 and the second hot-press roller 312 may be made of a flexible material, so that the first hot-press roller 311 and the second hot-press roller 312 may be deformed adaptively according to the thickness difference.
Of course, in other alternative embodiments, the hot press rollers may also be configured to form a protrusion at the position corresponding to the side a and the side b, and a recess at the position corresponding to the third material to be laminated at the middle portion, in other words, the diameters of the first hot press roller 311 and the second hot press roller 312 at the two sides may be larger than the diameter of the middle portion, so as to realize the whole surface lamination.
Alternatively, the first hot-press roll 311 may be a rubber roll, and the second hot-press roll 312 may be a metal roll; a first heater is provided at one side of the second heat and pressure roller 312 to heat the second heat and pressure roller 312.
In an embodiment of the present invention, in order to improve the thermal compounding efficiency, the first hot pressing roller 311 in the first compounding assembly 310 may be a rubber roller, so that a friction force between the first hot pressing roller 311 and the first material to be compounded or the second material to be compounded may be increased, so that the thermal compounding is more sufficient. Meanwhile, the rubber roller can be deformed according to the shape of the material to be compounded, so that the material to be compounded is better subjected to thermal compounding. The second hot-pressing roller 312 may be a metal roller, and a first heater may be disposed on one side of the second hot-pressing roller 312 to heat the second hot-pressing roller 312, so that the second hot-pressing roller 312 may cooperate with the first hot-pressing roller 311 to press the first material to be compounded, the second material to be compounded, and the third material to be compounded at a higher temperature, so that the thermal compounding is more sufficient.
Optionally, the composite assembly 300 may include a second composite assembly 320, where the second composite assembly 320 is configured to attach and fix two side edges of the first material to be composited and the second material to be composited in the composite material, and the third material to be composited is accommodated in an accommodating bag formed by the first material to be composited and the third material to be composited in a matching manner.
The second composite assembly 320 may include a third hot pressing roller 321 and a fourth hot pressing roller 322 which are oppositely disposed, the fourth hot pressing roller 322 includes a first rotating shaft 3221, a first hot pressing member 3222 and a second hot pressing member 3223, the first hot pressing member 3222 and the second hot pressing member 3223 are disposed in a disc shape, and diameters of the first hot pressing member 3222 and the second hot pressing member 3223 are greater than a diameter of the first rotating shaft 3221; the first thermocompression member 3222 and the second thermocompression member 3223 are symmetrically disposed at two ends of the first rotating shaft 3221;
the third hot-pressing roller 321 and the fourth hot-pressing roller 322 may be switched between a third state and a fourth state, in which the first hot-pressing member 3222 and the second hot-pressing member 3223 form a second gap and a third gap for the first material to be compounded and the second material to be compounded to pass through with the third hot-pressing roller 321, respectively.
Referring to fig. 4 and fig. 4 are schematic structural diagrams of a second composite assembly, in an embodiment of the present invention, the second composite assembly 320 may be an edge composite assembly 300, and is configured to attach edges of the first material to be compounded and the second material to be compounded, so that a containing bag for containing the third material to be compounded is formed in a middle portion of the second composite assembly. Therefore, the fourth hot pressing roller 322 may include a first rotating shaft 3221, and a first hot pressing member 3222 and a second hot pressing member 3223 symmetrically disposed at two ends of the first rotating shaft 3221, and a second gap and a third gap are formed between the first hot pressing member 3222 and the second hot pressing member 3223 and the third hot pressing roller 321, so as to achieve edge compounding of the first material to be compounded and the second material to be compounded.
Since the third material to be compounded has a certain hardness, when the third material to be compounded reaches the second composite member 320, the third material to be compounded can be inserted into the accommodating bag to obtain the composite material.
The switching of the states of the second composite element 320 and the first composite element 310 is similar, and will not be described herein again.
Alternatively, the third hot-press roll 321 may be a rubber roll, and the fourth hot-press roll 322 may be a metal roll; a second heater is provided at one side of the fourth heat and pressure roller 322 to heat the fourth heat and pressure roller 322.
Similar to the first composite assembly, the second and third heated press rolls 312 and 321 in the second composite assembly 320 may be similarly arranged. The first and second hot pressing members 3222 and 3223 of the fourth hot pressing roller 322 may be made of a metal material, and may be heated by a second heater.
According to the embodiment of the invention, the rubber roller is matched with the metal roller, and the metal roller is heated by the heater, so that the thermal compounding is more sufficient.
It should be noted that the thermal composite apparatus may only include the first composite component 310 or the second composite component 320, so as to implement the overall thermal composite process or the edge thermal composite process, respectively. The thermal compound device can also comprise the first compound component 310 and the second compound component 320, and in the thermal compound process, a user can select to carry out whole thermal compound or edge thermal compound, so that the flexibility of the thermal compound process is improved.
Specifically, in the case where the thermal compound apparatus includes both the first compound unit 310 and the second compound unit 320, the thermal compound apparatus may further include a control unit configured to control the first hot press roller 311 and the second hot press roller 312 to switch between the first state and the second state, and/or the third hot press roller 321 and the fourth hot press roller 322 to switch between the third state and the fourth state.
Further, in the case where the thermal composite apparatus includes the first composite member 310 and the second composite member 320, the first gap, the second gap, and the third gap may be located in the same plane.
The first composite member 310 and the second composite member 320 are respectively disposed at different heights, and when the whole thermal composition is selected, the first composite member 310 may be controlled to be in the second state, and the second composite member 320 may be controlled to be in the third state, so that the first material to be compounded, the second material to be compounded, and the third material to be compounded may be thermally combined at the first gap of the first composite member 310, and may finally converge on the winding member 200 through the second composite member 320.
When the edge thermal compounding is selected, the first compounding assembly 310 may be controlled to be in the first state, the second compounding assembly 320 may be controlled to be in the fourth state, and the first material to be compounded, the second material to be compounded, and the third material to be compounded may be thermally compounded at the second gap and the third gap of the second compounding assembly 320, pass through the first compounding assembly 310, and finally converge on the winding assembly 200.
In the embodiment of the present invention, the first gap, the second gap, and the third gap are located in the same plane, so that the state switching of the first composite assembly 310 and the second composite assembly 320 can be controlled by the control assembly, that is, the full-area thermal compounding and the edge thermal compounding can be respectively realized, and the convenience of the full-area thermal compounding and the edge thermal compounding switching is improved.
Alternatively, the first hot-press roll 311 may be a rubber roll, and the second hot-press roll 312 may be a metal roll; a first heater is disposed at one side of the second hot-press roll 312 to heat the second hot-press roll 312;
the third hot press roll 321 may be a rubber roll, and the fourth hot press roll 322 may be a metal roll; a second heater is provided at one side of the fourth heat and pressure roller 322 to heat the fourth heat and pressure roller 322.
In an embodiment of the present invention, in order to improve the thermal compounding efficiency, the first hot pressing roller 311 in the first compounding assembly 310 may be a rubber roller, so that a friction force between the first hot pressing roller 311 and the first material to be compounded or the second material to be compounded may be increased, so that the thermal compounding is more sufficient. The second hot-pressing roller 312 may be a metal roller, and a first heater may be disposed on one side of the second hot-pressing roller 312 to heat the second hot-pressing roller 312, so that the second hot-pressing roller 312 may cooperate with the first hot-pressing roller 311 to press the first material to be compounded, the second material to be compounded, and the third material to be compounded at a higher temperature, so that the thermal compounding is more sufficient.
Similarly, the second hot-press roll 312 and the third hot-press roll 321 in the second composite assembly 320 may adopt a similar arrangement. The first hot pressing member 3222 and the second hot pressing member 3223 of the fourth hot pressing roller 322 may be made of a metal material, and may be heated by a second heater.
According to the embodiment of the invention, the rubber roller is matched with the metal roller, and the metal roller is heated by the heater, so that the thermal compounding is more sufficient.
Optionally, the thermal compound apparatus may further include a sheet feeding assembly 500, wherein the sheet feeding assembly 500 is disposed between the third unwinding assembly 130 and the compound assembly 300, and is fixedly connected to the fixing plate 400;
the sheet feeding assembly 500 may include a conveying member 510 and a cutting member 520, the conveying member 510 includes oppositely disposed clamping plates for clamping the third material to be combined, and the conveying member 510 may move in a first direction;
the cutting member 520 may be disposed on a side of the conveying member 510 close to the composite member 300, and is used for cutting the third material to be composite.
Referring to fig. 5, in the embodiment of the present invention, the thermal compound apparatus may perform thermal compound by selecting an intermittent compound mode and a continuous compound mode. When the discontinuous compounding is performed, the thermal compounding apparatus may guide and convey the third material to be compounded to the cutting member 520 through the conveying member 510, cut the third material to be compounded into a plurality of sections through the cutting member 520, and thermally compound the plurality of sections of the third material to be compounded with the first material to be compounded and the second material to be compounded through the compounding assembly 300. In the continuous compounding, the cutting member 520 is not operated, and the conveying member 510 can directly guide the second material to be compounded to the next component, for example, the compounding component 300.
Further, a traction roller and a deviation correcting member may be further disposed between the conveying member 510 and the cutting member 520, and are used for traction and deviation correction of the cut third material to be compounded.
According to the embodiment of the invention, the insert assembly 500 is arranged, so that the third material to be compounded can be cut into a plurality of sections, the heat compounding process of discontinuous compounding is realized, and the flexibility of the heat compounding mode is improved.
Optionally, the thermal compound apparatus further includes a preheating assembly 600, wherein the preheating assembly 600 is disposed between the insert assembly 500 and the compound assembly 300, and is fixedly connected to the fixing plate 400;
the preheating assembly 600 includes a third heater, and the third heater is used for preheating the first material to be compounded, the second material to be compounded, and the third material to be compounded.
Alternatively, one or more pairs of pressing rollers may be disposed between the preheating assembly 600 and the insert assembly 500, and are used to press the first material to be compounded, the second material to be compounded, and a third material to be compounded, and the third material to be compounded is transferred to the preheating assembly 600 for preheating through clamping of the first material to be compounded and the second material to be compounded, and then transferred to the compounding assembly 300 for compounding.
According to the embodiment of the invention, the preheating component 600 is arranged, so that the material to be compounded can be preheated in the thermal compounding process, the time of the thermal compounding process can be reduced, and the deformation or damage of the material to be compounded caused by overlong contact time of the hot pressing roller and the material to be compounded can be avoided.
Optionally, the thermal compound apparatus may further include at least one buffer member 700, where the at least one buffer member 700 is disposed between the third unwinding assembly 130 and the winding assembly 500 and/or between the compound assembly 300 and the winding assembly 200, and is fixedly connected to the fixing plate 400;
the buffer assembly 700 includes a guide rail 710 and a first passing roller 720, wherein the guide rail 710 is movable in a second direction to control the unwinding speed of the third unwinding assembly 130 or the winding speed of the winding assembly 200; the second direction is a longitudinal direction of the guide rail 710.
In the embodiment of the present invention, the third composite material reaches the sheet inlet assembly 500 through the first passing roller 720 and the guide rail 710, and the guide rail 710 moves in the horizontal direction, so that the third composite material stays on the guide rail 710, thereby slowing down the speed of the third composite material when the third composite material is conveyed to the sheet inlet assembly 500.
Optionally, the thermal compound apparatus further includes at least one tension control assembly 800, wherein the at least one tension control assembly 800 is disposed on the fixing plate 400 and is fixedly connected to the fixing plate 400;
the tension control assembly 800 includes a floating roll 810 and at least two second rollers 820, the target material to be compounded is conveyed to the composite assembly 300 through the floating roll 810 and the at least two second rollers 820 for compounding, the target material to be compounded is the first material to be compounded or the second material to be compounded, and the floating roll 810 is movable in a third direction.
In an embodiment of the present invention, the third direction may be a horizontal direction, and the tension control assembly 800 may control the tension of the target material to be compounded by providing a floating roller 810 and at least two second rollers 820, and moving the floating roller 810 in the third direction when the target material to be compounded passes through the floating roller 810 and the at least two second rollers 820, so as to prevent the target material to be compounded from wrinkling or breaking.
Optionally, the first material to be compounded and the second material to be compounded are both diaphragms, and the third material to be compounded is a pole piece.
In the embodiment of the invention, the thermal compounding equipment can thermally compound the diaphragm and the pole piece, the two sides of the pole piece are respectively thermally compounded with the diaphragm on the whole surface, or the edges of the two diaphragms are thermally compounded to form the containing bag, the pole piece is inserted into the containing bag to obtain the composite material, and the composite material can be used as a raw material for winding or laminating, so that the covering performance of the battery in the winding process can be effectively improved.
In the embodiment of the present invention, the preheating temperature of the preheating assembly 600 may be 70 to 80 ℃, the composite temperature may be 80 to 100 ℃, and the composite temperature may be specifically set according to actual needs.
The specific thermal compounding process of the diaphragm and the pole piece is taken as an example to explain the specific implementation mode of the invention in detail, and the process is as follows:
1. winding two rolls of membrane materials on the first unwinding assembly 110 and the second unwinding assembly 120 respectively;
2. placing the pole piece on the third unwinding assembly 130;
3. the pole piece passes through the buffer assembly 700, the process deviation rectifying assembly and the pole piece assembly 500, when the pole piece selects a continuous pole piece, the pole piece assembly 500 does not work, when the pole piece is selected to be discontinuously compounded, the pole piece is cut into a set length by the pole piece assembly 500, and then the pole piece is conveyed downwards;
4. when the diaphragm is unreeled, the tension control assembly 800 is used for controlling the tension of the diaphragm;
5. the diaphragm and the pole piece are converged and enter the preheating assembly 600, and the pole piece and the diaphragm are preheated at a temperature slightly lower than the compounding temperature;
6. when the whole surface of the pole piece and the diaphragm is selected to be compounded, the whole surface compound assembly 300 heats the roller, presses the diaphragm and the pole piece, and compounds the pole piece and the diaphragm into a whole after hot rolling;
7. when the diaphragm is selected to be compounded with the edge of the diaphragm, the edge compounding assembly 300 heats the edge of the diaphragm, bag-making and compounding the edge of the diaphragm into a whole, and a pole piece can be inserted in the middle
8. The rolling tension of the composite material is controlled by the rolling tension control component 800
9. The composite material can be collected in rolls by the rolling assembly 200 and used as a raw material for rolling or laminating.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A thermal compounding device is characterized by comprising an unreeling component, a reeling component, a compounding component and a fixing plate, wherein,
the unwinding assembly, the winding assembly and the composite assembly are arranged on one side of the fixed plate and are fixedly connected with the fixed plate; the unwinding assembly is used for releasing a material to be compounded, the material to be compounded forms a composite material through the compounding assembly, and the winding assembly is used for winding the composite material;
the unwinding assembly comprises a first unwinding assembly, a second unwinding assembly and a third unwinding assembly, and the first unwinding assembly, the second unwinding assembly and the third unwinding assembly are respectively used for releasing a first material to be compounded, a second material to be compounded and a third material to be compounded;
the composite assembly is used for compounding a first material to be compounded, a second material to be compounded and a third material to be compounded which are arranged in a stacked mode to obtain the composite material; the composite assembly comprises oppositely arranged hot press rollers, the oppositely arranged hot press rollers are used for fixedly attaching two side edges of the first material to be compounded and the second material to be compounded, and the first material to be compounded and the second material to be compounded are matched with each other to clamp the third material to be compounded.
2. The thermal compounding device of claim 1, wherein the compounding assembly comprises a first compounding assembly, the first compounding assembly is used for fixedly attaching two side edges of the first material to be compounded and the second material to be compounded, and fixedly attaching two side surfaces of the third material to be compounded and the first material to be compounded and the second material to be compounded respectively;
first composite component is including relative first hot pressing roller and the second hot pressing roller that sets up, first hot pressing roller with the second hot pressing roller can switch between first state and second state under the second state, form between first hot pressing roller and the second hot pressing roller and be used for first waiting composite material, second wait composite material and third wait the first clearance that composite material passes through.
3. The thermal compounding device of claim 2, wherein the first hot press roll is a rubber roll and the second hot press roll is a metal roll; and a first heater is arranged on one side of the second hot-pressing roller and used for heating the second hot-pressing roller.
4. The thermal compounding device of claim 1, wherein the compounding assembly comprises a second compounding assembly, the second compounding assembly is used for attaching and fixing two side edges of the first material to be compounded and the second material to be compounded in the compounding material, and the third material to be compounded is contained in a containing bag formed by matching the first material to be compounded and the third material to be compounded;
the second composite assembly comprises a third hot pressing roller and a fourth hot pressing roller which are arranged oppositely, the fourth hot pressing roller comprises a first rotating shaft, a first hot pressing part and a second hot pressing part, the first hot pressing part and the second hot pressing part are arranged in a disc shape, and the diameters of the first hot pressing part and the second hot pressing part are larger than that of the first rotating shaft; the first hot pressing piece and the second hot pressing piece are symmetrically arranged at two ends of the first rotating shaft;
the third hot press roll and the fourth hot press roll may be switched between a third state and a fourth state, in which the first hot press part and the second hot press part form a second gap and a third gap for the first material to be compounded and the second material to be compounded to pass through, respectively, with the third hot press roll.
5. The thermal compounding device of claim 4, wherein the third hot press roll is a rubber roll and the fourth hot press roll is a metal roll; and a second heater is arranged on one side of the fourth hot-pressing roller and used for heating the fourth hot-pressing roller.
6. The thermal compounding device of claim 1, further comprising an input member disposed between the third unwinding assembly and the compounding assembly and fixedly connected to the fixing plate;
the feeding piece assembly comprises a conveying piece and a cutting piece, the conveying piece comprises oppositely arranged clamping plates for clamping the third material to be compounded, and the conveying piece can move along a first direction;
the cutting piece is arranged on one side, close to the composite component, of the conveying piece and used for cutting the third material to be composited.
7. The thermal compounding device of claim 6, further comprising a pre-heating assembly disposed between the inlet assembly and the compounding assembly and fixedly attached to the holding plate;
the preheating assembly comprises a third heater, and the third heater is used for preheating the first material to be compounded, the second material to be compounded and the third material to be compounded.
8. The thermal compounding device of claim 1, further comprising at least one buffer component, wherein the at least one buffer component is disposed between the third unwinding component and the compounding component and/or between the compounding component and the winding component, and is fixedly connected to the fixing plate;
the buffer memory assembly comprises a guide rail and a first roller, and the guide rail can move in a second direction to control the unreeling speed of the third unreeling assembly or control the reeling speed of the reeling assembly; the second direction is a length direction of the guide rail.
9. The thermal compounding device of claim 1, further comprising at least one tension control assembly disposed on the holding plate and fixedly connected to the holding plate;
the tension control assembly comprises a floating roller and at least two second rollers, a target material to be compounded is conveyed to the compounding assembly through the floating roller and the at least two second rollers to be compounded, the target material to be compounded is a first material to be compounded or a second material to be compounded, and the floating roller can move in a third direction.
10. The thermal compounding device of claim 1, wherein the first material to be compounded and the second material to be compounded are both diaphragms, and the third material to be compounded is a pole piece.
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| CN202011447092.XA CN112478901A (en) | 2020-12-09 | 2020-12-09 | Thermal compounding equipment |
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| CN202011447092.XA CN112478901A (en) | 2020-12-09 | 2020-12-09 | Thermal compounding equipment |
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