Thermal compounding edge sealing device

Abstract

The utility model discloses a thermal composite edge sealing device which comprises a rack, a material placing table arranged on the rack, a left hot-pressing edge sealing mechanism and a right hot-pressing edge sealing mechanism. The material placing table is arranged in the middle of the rack and is used for placing a composite film; the left hot-pressing edge-sealing mechanism is arranged on the left side of the rack; the right hot-pressing edge-sealing mechanism is arranged on the right side of the rack; the left hot-pressing edge sealing mechanism comprises a left driving group, a left upper hot-pressing block and a left lower hot-pressing block; the left driving group is used for driving the left upper hot-pressing block and the left lower hot-pressing block to oppositely open and close so as to perform hot-pressing edge sealing on diaphragms on two sides of the left edge of the composite film; the right hot-pressing edge sealing mechanism comprises a right driving group, a right upper hot-pressing block and a right lower hot-pressing block; the right driving group is used for driving the right upper hot-pressing block and the right lower hot-pressing block to be opened and closed relatively, so that diaphragms on two sides of the right edge of the composite membrane are subjected to hot-pressing edge sealing, the diaphragms on two sides of the composite membrane are compounded together, and the quality of a finished battery cell made of the composite membrane is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production technical field, especially relates to a heat compound chases edge device. BACKGROUND

[0002] Pole piece and diaphragm heat compound, form compound film, prevent compound film made battery short circuit in prior art, so diaphragm width is greater than pole piece width, compound film when passing overheat compound roll, diaphragm two sides are longer than pole piece, and the overall thickness of diaphragm two sides is smaller than the middle, and heat compound roll cannot press to compound film two sides, lead to diaphragm two sides not compound together, thereby influence the quality of the finished product battery cell made. UTILITY MODEL CONTENTS

[0003] In order to overcome the insufficient of prior art, the utility model provides a heat compound chases edge device that can improve the quality of battery cell.

[0004] The utility model solves technical scheme that its technical problem adopts:

[0005] A heat compound chases edge device, including frame, be located on the material placing table of frame, left hot pressing edge sealing mechanism, right hot pressing edge sealing mechanism,

[0006] The material placing table is located in the middle part of the frame, and is used for placing the compound film;

[0007] The left hot pressing edge sealing mechanism is arranged on the left side of the frame, and the right hot pressing edge sealing mechanism is arranged on the right side of the frame;

[0008] The left hot pressing edge sealing mechanism includes a left drive group, a left upper hot pressing block and a left lower hot pressing block; the left drive group is used to drive the left upper hot pressing block and the left lower hot pressing block to open and close relative to each other, so as to heat press and seal the diaphragm on both sides of the left edge of the compound film;

[0009] The right hot pressing edge sealing mechanism includes a right drive group, a right upper hot pressing block and a right lower hot pressing block; the right drive group is used to drive the right upper hot pressing block and the right lower hot pressing block to open and close relative to each other, so as to heat press and seal the diaphragm on both sides of the right edge of the compound film.

[0010] The heat compound chases edge device as described above, the left hot pressing edge sealing mechanism and the right hot pressing edge sealing mechanism are the same in structure;

[0011] The left hot pressing edge sealing mechanism further includes a left bracket, a left front sliding rail and a left rear sliding rail;

[0012] The fixed end of the left drive group is fixed on the left bracket, and the left upper hot pressing block and the left lower hot pressing block are in the shape of a long strip and parallel to the transmission direction of the compound film;

[0013] The left front slide rail and the left rear slide rail are parallel to each other and fixed on the left support, and are perpendicular to the composite film conveying direction.

[0014] The left upper hot pressing block and the left lower hot pressing block are parallel to each other and slide up and down on the left front slide rail and the left rear slide rail.

[0015] The hot composite edge sealing device as described above, the left driving group comprises a driving member, a lead screw, a first sliding block and a second sliding block;

[0016] The left support is provided with a first through slot and a second through slot;

[0017] The first through slot is located above the second through slot;

[0018] The fixed end of the driving member is fixed on the left support, and the output end of the driving member is in transmission connection with the lead screw;

[0019] Along the length direction of the lead screw, the thread directions of the upper part of the lead screw and the lower part of the lead screw are opposite;

[0020] The first sliding block is slidably arranged on the upper part of the lead screw, and the first sliding block is fixedly connected with the left upper hot pressing block through the first through slot;

[0021] The second sliding block is slidably arranged on the upper part of the lead screw, and the second sliding block is fixedly connected with the left lower hot pressing block through the second through slot;

[0022] The driving member drives the lead screw to rotate, thereby driving the first sliding block and the left upper hot pressing block to open and close relative to the second sliding block and the left lower hot pressing block.

[0023] The hot composite edge sealing device as described above, a limiting member is fixedly connected on the left support and between the first sliding block and the second sliding block, and the limiting member is used to limit the minimum distance between the left upper hot pressing block and the left lower hot pressing block.

[0024] The hot composite edge sealing device as described above, the left hot pressing edge sealing mechanism further comprises a left upper follow-up block, a left lower follow-up block, a left upper position sensing group and a left lower position sensing group;

[0025] The left upper follow-up block is fixedly connected on the first sliding block; and the left lower follow-up block is fixedly connected on the second sliding block;

[0026] The left upper position sensing group and the left lower position sensing group are both fixedly arranged on the left support;

[0027] The left upper position sensing group is used to sense whether the left upper follow-up block, the first slider and the left upper hot pressing block move to the lowest point; the left lower position sensing group is used to sense whether the left lower follow-up block, the second slider and the left lower hot pressing block move to the highest point.

[0028] When the left upper position sensing group senses that the left upper follow-up block, the first slider and the left upper hot pressing block move to the lowest point, the left lower position sensing group senses whether the left lower follow-up block, the second slider and the left lower hot pressing block move to the highest point, and the driving member stops outputting.

[0029] The hot composite edge sealing device, the left hot pressing edge sealing mechanism further comprises a positioning rail, a left upper locking group and a left lower locking group.

[0030] The positioning rail is fixed on the left support;

[0031] The left upper locking group and the left lower locking group are detachably connected with the positioning rail;

[0032] The left upper position sensing group is fixed on the positioning rail through the left upper locking group;

[0033] The left lower position sensing group is fixed on the positioning rail through the left lower locking group.

[0034] The hot composite edge sealing device, the left upper hot pressing block, the left lower hot pressing block, the right upper hot pressing block and the right lower hot pressing block are of the same structure;

[0035] The left upper hot pressing block comprises a heating block, a left heat insulation block fixed on the left side of the heating block and a right heat insulation block fixed on the right side of the heating block, and the heating block protrudes from the left heat insulation block and the right heat insulation block and directly contacts the composite film.

[0036] The hot composite edge sealing device, the rack further comprises a distance adjusting group, and the distance adjusting group is used to adjust the distance between the left hot pressing edge sealing mechanism and the right hot pressing edge sealing mechanism.

[0037] The hot composite edge sealing device, the distance adjusting group comprises a distance adjusting slide rail and a distance adjusting fixing member, the distance adjusting slide rail is fixed on the rack, and the distance adjusting slide rail is vertically arranged with the composite film transmission direction.

[0038] The left hot pressing edge sealing mechanism and the right hot pressing edge sealing mechanism slide on the distance adjusting slide rail, and the distance adjusting fixing member is used to fix the left hot pressing edge sealing mechanism and the right hot pressing edge sealing mechanism on the distance adjusting slide rail.

[0039] The heat-composite chase edge device as described above further comprises a rack transmission group, the rack slide is arranged on the rack transmission group, and the rack transmission group is used for driving the rack, the material placing table, the left heat-compression edge sealing mechanism and the right heat-compression edge sealing mechanism to move in the same direction and / or in the opposite direction along the composite film transmission direction.

[0040] When the rack transmission group drives the rack, the material placing table, the left heat-compression edge sealing mechanism and the right heat-compression edge sealing mechanism to move in the same direction along the composite film transmission direction, the moving speed of the rack is equal to the composite film transmission speed.

[0041] The heat-composite chase edge device has the following beneficial effects:

[0042] The material placing table is used for placing the composite film and providing support for the middle part of the composite film. The left driving group drives the left upper heat-compression block and the left lower heat-compression block to open and close relative to each other, so as to heat-compress and seal the membranes on both sides of the left edge of the composite film. The right driving group drives the right upper heat-compression block and the right lower heat-compression block to open and close relative to each other, so as to heat-compress and seal the membranes on both sides of the right edge of the composite film. Therefore, the membranes on both sides of the composite film are combined together, and the quality of the finished product battery cell made of the composite film is improved. BRIEF DESCRIPTION OF DRAWINGS

[0043] The heat-composite chase edge device will be further described below in combination with the drawings and embodiments.

[0044] Figure 1 is a structure schematic view of the heat-composite chase edge device, the composite film and the heat-composite roller in the embodiment;

[0045] Figure 2 is one of structure schematic views of the heat-composite chase edge device and the composite film in the embodiment;

[0046] Figure 3 is Figure 2 a structure enlarged view of the A part in the embodiment;

[0047] Figure 4 is the second structure schematic view of the heat-composite chase edge device and the composite film in the embodiment;

[0048] Figure 5 is Figure 4 a structure enlarged view of the B part in the embodiment;

[0049] Figure 6 is a structure schematic view of the left heat-compression edge sealing mechanism in the embodiment;

[0050] Figure 7 is a structure schematic view of the rack and the distance adjusting group in the embodiment;

[0051] The following are the signs in the drawings:

[0052] 100-rack;

[0053] 200 - material placing table

[0054] 300 - left hot-pressing edge sealing mechanism; 302 - left front slide rail; 303 - left rear slide rail; 31 - left driving group; 311 - driving piece; 312 - screw rod; 313 - first sliding block; 314 - second sliding block; 32 - left upper hot-pressing block; 321 - heating block; 3211 - heating tube; 322 - left heat insulation block; 323 - right heat insulation block; 33 - left lower hot-pressing block; 34 - limiting piece; 351 - left upper follow-up block; 352 - left lower follow-up block; 353 - left upper position sensing group; 354 - left lower position sensing group; 361 - positioning rail; 362 - left upper locking group; 363 - left lower locking group; 310 - distance adjusting group; 37 - distance adjusting slide rail; 371 - first distance adjusting slide rail; 372 - second distance adjusting slide rail; 38 - distance adjusting fixing piece; 39 - left support; 391 - first through groove; 392 - second through groove

[0055] 400 - right hot-pressing edge sealing mechanism; 41 - right driving group; 42 - right upper hot-pressing block; 43 - right lower hot-pressing block

[0056] 500 - composite film

[0057] 600 - rack transmission group

[0058] 700 - hot-composite roller DETAILED DESCRIPTION

[0059] The concept, specific structure and technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. In addition, all the coupling / connection relationships involved in the patent do not mean that the components are directly connected, but that a better coupling structure can be formed by adding or reducing coupling auxiliary components according to the specific implementation situation. The technical features in the present application can be combined interactively without mutual contradiction and conflict.

[0060] In the prior art, the hot-composite roller cannot press the two edges of the composite film, so that the two edges of the diaphragm are not compounded together. After the composite film is cut to form the stacked plate unit, the edge of the diaphragm may have a flanging phenomenon. When the composite film is stacked to form the battery cell, the edge of the diaphragm may be raised, which may cause the negative electrode and the positive electrode of the adjacent stacked plate unit to be in contact, thereby causing short circuit, thereby affecting the reliability of the battery cell.

[0061] To solve the above technical problems, with reference to Figure 1 , Figure 2The application relates to a hot-combination edge sealing device which comprises a rack 100, a material placing table 200 arranged on the rack 100, a left hot-pressing edge sealing mechanism 300 and a right hot-pressing edge sealing mechanism 400.

[0062] The material placing table 200 is arranged in the middle of the rack 100 and is used for placing a combination film 500 and supporting the combination film 500, so as to prevent the middle of the combination film 500 from sagging and avoid the relative position change between a pole piece and a diaphragm before the combination film 500 is treated by a hot-combination roller, thereby ensuring the processing precision of the combination film 500.

[0063] The left hot-pressing edge sealing mechanism 300 is arranged on the left side of the rack 100, and the right hot-pressing edge sealing mechanism 400 is arranged on the right side of the rack 100.

[0064] The left hot-pressing edge sealing mechanism 300 comprises a left driving group 31, a left upper hot-pressing block 32 and a left lower hot-pressing block 33; the left driving group 31 is used for driving the left upper hot-pressing block 32 and the left lower hot-pressing block 33 to open and close relative to each other, so as to hot-press the diaphragms on the two sides of the left edge of the combination film 500.

[0065] The right hot-pressing edge sealing mechanism 400 comprises a right driving group 41, a right upper hot-pressing block 42 and a right lower hot-pressing block 43; the right driving group 41 is used for driving the right upper hot-pressing block 42 and the right lower hot-pressing block 43 to open and close relative to each other, so as to hot-press the diaphragms on the two sides of the right edge of the combination film 500.

[0066] The scheme of the embodiment is equivalent to additionally hot-pressing the diaphragms on the two sides of the combination film 500 before or after the combination film 500 passes through the hot-combination roller 700, thereby reducing the phenomenon that the diaphragm edges are turned up and bent after the combination film 500 is cut to form a laminated plate unit, reducing the probability of battery short circuit, and improving the quality of finished battery cells made of the combination film.

[0067] It can be understood that the combination film 500 is placed on the material placing table 200 when the left hot-pressing edge sealing mechanism 300 and the right hot-pressing edge sealing mechanism 400 are hot-pressed, the height of the material placing table 200 is adjusted to be consistent with the horizontal position height of the left upper hot-pressing block 32 and the left lower hot-pressing block 33 when they are pressed and the horizontal position height of the right upper hot-pressing block 42 and the right lower hot-pressing block 43 when they are pressed, so that the diaphragms on the two sides of the combination film 500 are kept parallel, and the diaphragms on the two sides of the combination film 500 are not aligned when the edges are hot-pressed, thereby affecting the hot-pressing edge sealing effect.

[0068] It can be understood that the material placing table 200 is located between the left hot-pressing edge sealing mechanism 300 and the right hot-pressing edge sealing mechanism 400.

[0069] It can be understood that when the left heat sealing mechanism 300 heat seals, the diaphragm of the left edge of the composite film 500 is located between the left upper heat sealing block 32 and the left lower heat sealing block 33; when the right heat sealing mechanism 400 heat seals, the diaphragm of the right edge of the composite film 500 is located between the right upper heat sealing block 42 and the right lower heat sealing block 43.

[0070] Specifically, the opening and closing actions of the right upper heat sealing block 42 and the right lower heat sealing block 43 are synchronized with the opening and closing actions of the left upper heat sealing block 32 and the left lower heat sealing block 33.

[0071] More specifically, the right upper heat sealing block 42, the right lower heat sealing block 43, the left upper heat sealing block 32 and the left lower heat sealing block 33 have the same heating power.

[0072] More specifically, the heating time of the right upper heat sealing block 42 and the right lower heat sealing block 43 on the left edge of the composite film 500 is the same as the heating time of the left upper heat sealing block 32 and the left lower heat sealing block 33 on the right edge of the composite film 500.

[0073] More specifically, when the left heat sealing mechanism 300 and the right heat sealing mechanism 400 heat seal the composite film 500, the left upper heat sealing block 32 and the right upper heat sealing block 42 are located on the same horizontal line, and the left lower heat sealing block 33 and the right lower heat sealing block 43 are located on the same horizontal line.

[0074] Referring to Figure 2 , Figure 6 In an embodiment, the left heat sealing mechanism 300 and the right heat sealing mechanism 400 have the same structure; the left heat sealing mechanism 300 further comprises a left support 39, a left front sliding rail 302 and a left rear sliding rail 303;

[0075] The fixed end of the left driving group 31 is fixed to the left support 39, and the left upper heat sealing block 32 and the left lower heat sealing block 33 are in a strip shape and parallel to the transmission direction of the composite film 500;

[0076] The left front sliding rail 302 and the left rear sliding rail 303 are parallel to each other and fixed to the left support 39, and perpendicular to the transmission direction of the composite film 500;

[0077] The left upper heat sealing block 32 and the left lower heat sealing block 33 are parallel to each other and slide up and down on the left front sliding rail 302 and the left rear sliding rail 303.

[0078] The left upper heat sealing block 32 and the left lower heat sealing block 33 are in a strip shape, and one opening and closing heat sealing action can heat seal as many edges of the composite film 500 as possible, and compared with a point-shaped heat sealing structure, the strip-shaped left upper heat sealing block 32 and the left lower heat sealing block 33 can provide a larger area of heat sealing contact, thereby ensuring that the edges of the composite film 500 are heated more uniformly and improving the sealing quality;

[0079] For example, the left upper hot pressing block 32, in order to reduce the left driving group 31 driving the left upper hot pressing block 32 up and down movement, the left upper hot pressing block 32 offset, affect the parallelism of the left upper hot pressing block 32 and the left lower hot pressing block 33, therefore set left front slide rail 302 and left rear slide rail 303, improve the stability of the left upper hot pressing block 32 up and down movement, avoid the parallelism change between it and the left lower hot pressing block 33.

[0080] Referring to Figure 2 , Figure 4 and Figure 5 , specifically, the left driving group 31 includes driving piece 311, lead screw 312, first sliding block 313 and second sliding block 314;

[0081] The left support 39 is provided with a first through slot 391 and a second through slot 392;

[0082] The first through slot 391 is located above the second through slot 392;

[0083] The fixed end of the driving piece 311 is fixed on the left support 39, and the output end of the driving piece 311 is in transmission connection with the lead screw 312;

[0084] Along the length direction of the lead screw 312, the thread direction of the upper part of the lead screw 312 is opposite to that of the lower part of the lead screw 312;

[0085] The first sliding block 313 is slidably arranged on the upper part of the lead screw 312, and the first sliding block 313 is fixedly connected with the left upper hot pressing block 32 through the first through slot 391;

[0086] The second sliding block 314 is slidably arranged on the upper part of the lead screw 312, and the second sliding block 314 is fixedly connected with the left lower hot pressing block 33 through the second through slot 392;

[0087] The driving piece 311 drives the lead screw 312 to rotate, thereby driving the first sliding block 313 and the left upper hot pressing block 32 to open and close relative to the second sliding block 314 and the left lower hot pressing block 33.

[0088] By arranging the threads in opposite directions on the upper part and the lower part of the lead screw 312, one driving piece 311 drives one lead screw 312 to rotate, which can drive the first sliding block 313 and the second sliding block 314 to open and close synchronously, without the need to separately arrange two driving pieces for the second sliding block 314 and the first sliding block 313, thereby reducing the manufacturing cost of the part structure;

[0089] The first slider 313 and the second slider 314 are threadedly connected with the screw rod 312 and slide on the screw rod 312. The thread itself has self-locking property. When the screw rod 312 stops rotating, the relative positions between the first slider 313 and the second slider 314 and between the left upper hot pressing block 32 and the left lower hot pressing block 33 are kept unchanged. The pitch of the thread on the screw rod 312 can finely control the relative movement distance of the first slider 313 and the second slider 314 and the pressure on the composite film 500.

[0090] More specifically, the thread pitch of the upper part of the screw rod 312 is equal to that of the lower part of the screw rod 312.

[0091] Referring to Figure 5 More specifically, the left support 39 is fixedly connected with a limiting piece 34 between the first slider 313 and the second slider 314. The limiting piece 34 is used to limit the minimum distance between the left upper hot pressing block 32 and the left lower hot pressing block 33 to avoid excessive pressing of the composite film 500 by the left upper hot pressing block 32 and the left lower hot pressing block 33 and damage to the composite film 500.

[0092] Referring to Figure 5 More specifically, the left hot pressing and edge sealing mechanism 300 further comprises a left upper follower block 351, a left lower follower block 352, a left upper position sensing group 353 and a left lower position sensing group 354.

[0093] The left upper follower block 351 is fixedly connected with the first slider 313. The left lower follower block 352 is fixedly connected with the second slider 314.

[0094] The left upper position sensing group 353 and the left lower position sensing group 354 are both fixedly connected with the left support 39.

[0095] The left upper position sensing group 353 is used to sense whether the left upper follower block 351, the first slider 313 and the left upper hot pressing block 32 move to the lowest point. The left lower position sensing group 354 is used to sense whether the left lower follower block 352, the second slider 314 and the left lower hot pressing block 33 move to the highest point.

[0096] When the left upper position sensing group 353 senses that the left upper follow-up block 351, the first slider 313 and the left upper hot pressing block 32 move to the lowest point, the left lower position sensing group 354 senses whether the left lower follow-up block 352, the second slider 314 and the left lower hot pressing block 33 move to the highest point, thus the driving member 311 stops outputting, avoiding that the left upper hot pressing block 32 and the left lower hot pressing block 33 excessively press the composite film 500, at this time the left upper hot pressing block 32 and the left lower hot pressing block 33 are hot pressing the edge of the composite film 500; when the edge of the composite film 500 is sealed, the driving member 311 reversely rotates, so that the first slider 313 and the second slider 314 move away from each other, and the left upper hot pressing block 32 and the left lower hot pressing block 33 move away from each other.

[0097] The arrangement of the left upper follow-up block 351, the left lower follow-up block 352, the left upper position sensing group 353 and the left lower position sensing group 354 improves the automation degree of the device, and a program can be set to control the time of hot pressing and sealing, for example, 10 seconds after the left upper position sensing group 353 senses that the left upper follow-up block 351 is located in the sensing range, the driving member 311 reversely outputs, so that the first slider 313 and the second slider 314 move away from each other, and the left upper hot pressing block 32 and the left lower hot pressing block 33 move away from each other.

[0098] As an example, the left upper position sensing group 353 and the left lower position sensing group 354 are photoelectric sensors, specifically U-shaped photoelectric sensors.

[0099] More specifically, the left upper position sensing group 353 and the left lower position sensing group 354 are signal connected with the driving member 311.

[0100] Referring to Figure 5 More specifically, in order to adapt to composite films 500 of different thicknesses, the left hot pressing and sealing mechanism 300 further comprises a positioning rail 361, a left upper locking group 362 and a left lower locking group 363.

[0101] The positioning rail 361 is fixed to the left support 39.

[0102] The left upper locking group 362 and the left lower locking group 363 are detachably connected with the positioning rail 361.

[0103] The left upper position sensing group 353 is fixed to the positioning rail 361 through the left upper locking group 362, and the left lower position sensing group 354 is fixed to the positioning rail 361 through the left lower locking group 363.

[0104] As an example, the positioning rail 361 can be a single-sided slotted square tube.

[0105] As an example, the left upper locking group 362 and the left lower locking group 363 can be screw-nut matching structure, buckle matching structure, magnetic matching structure.

[0106] In an embodiment, the left upper heat block 32, the left lower heat block 33, the right upper heat block 42 and the right lower heat block 43 are of the same structure;

[0107] Referring to Figure 2 , Figure 3 The left upper heat block 32 comprises a heat block 321, a left heat insulation block 322 fixed to the left side of the heat block 321, and a right heat insulation block 323 fixed to the right side of the heat block 321, and the heat block 321 protrudes from the left heat insulation block 322 and the right heat insulation block 323 and directly contacts the composite film 500.

[0108] Specifically, the heat block 321 is internally provided with a heating pipe 3211 which generates heat and transmits the heat to the heat block 321, and the heat block 321 heat seals the edges of the diaphragm.

[0109] The left heat insulation block 322 and the right heat insulation block 323 can avoid the operator from mistakenly triggering the heat block 321, causing scalding, and prevent the heat of the heat block 321 from spreading to the entire heat sealing device, avoiding the deformation of each component due to heat and affecting use. The heat block 321 protrudes from the left heat insulation block 322 and the right heat insulation block 323, which can be used to observe the distance between the heat block 321 and the composite film 500 and adjust the distance between the left upper heat block 32 and the left lower heat block 33.

[0110] Referring to Figure 7 In an embodiment, the rack 100 is further provided with a distance adjusting group 310 which is used to adjust the distance between the left heat sealing device 300 and the right heat sealing device 400 to adapt to composite films 500 of different widths and enhance the versatility of the device.

[0111] As an example, the distance adjusting group 310 comprises a distance adjusting lead screw (not shown in the figure) and two transmission nuts (not shown in the figure). The two transmission nuts are respectively fixed to the left heat sealing device 300 and the right heat sealing device 400, and the thread directions of the two transmission nuts are opposite. The distance adjusting lead screw is screwed with the two transmission nuts, and rotating the distance adjusting lead screw makes the left heat sealing device 300 and the right heat sealing device 400 approach or move away from each other.

[0112] In this example, the distance adjusting group 310 further comprises a fixed driving motor (not shown in the figure), and the driving motor is in transmission connection with the distance adjusting lead screw. The driving motor drives the distance adjusting lead screw to rotate, thereby controlling the distance between the left heat sealing device 300 and the right heat sealing device 400.

[0113] In the example, the pitch adjusting screw rod can also be manually driven to rotate.

[0114] As an example, the pitch adjusting group 310 comprises a center gear (not shown in the figure) and a first rack (not shown in the figure) and a second rack (not shown in the figure) arranged on the upper and lower sides of the center gear and in transmission engagement with the center gear. The first rack is fixedly connected with the left heat sealing and edge sealing mechanism 300, and the second rack is fixedly connected with the right heat sealing and edge sealing mechanism 400. When any one of the first rack or the second rack is pulled, the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 move closer to or farther away from each other.

[0115] As an example, the rack 100 is further provided with a pitch adjusting slide rail 37 and a pitch adjusting fixing member 38. The pitch adjusting slide rail 37 is fixed to the rack 100, and the pitch adjusting slide rail 37 is arranged perpendicularly to the transmission direction of the composite film 500.

[0116] The left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 slide on the pitch adjusting slide rail 37, and the pitch adjusting fixing member 38 is used to fix the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 on the pitch adjusting slide rail 37.

[0117] In the example, specifically, the pitch adjusting slide rail 37 comprises a first pitch adjusting slide rail 371 and a second pitch adjusting slide rail 372 arranged in parallel to each other. The left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 slide on the first pitch adjusting slide rail 371 at one side and slide on the second pitch adjusting slide rail 372 at the other end. The first pitch adjusting slide rail 371 and the second pitch adjusting slide rail 372 provide two support points for the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400, so as to ensure that the two mechanisms can slide stably.

[0118] In an embodiment, the rack 100 is further provided with a rack transmission group 600. The rack 100 slides on the rack transmission group 600. The rack transmission group 600 is used to drive the rack 100, the material placing table 200, the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 to move in the same direction and / or in the opposite direction along the transmission direction of the composite film 500.

[0119] When the rack transmission group 600 drives the rack 100, the material placing table 200, the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 to move in the same direction along the transmission direction of the composite film 500, the moving speed of the rack 100 is equal to the transmission speed of the composite film 500.

[0120] As an example, when the composite film 500 is transported along the +A direction at a speed of 0.5 m / s, the rack transmission group 600 drives the rack 100, the material placing table 200, the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 to heat seal and edge seal the a part of the composite film 500 along the +A direction at a speed of 0.5 m / s, complete the heat sealing and edge sealing, then the left upper heat sealing and edge sealing block 32 and the left lower heat sealing and edge sealing block 33 are opened, the right upper heat sealing and edge sealing block 42 and the right lower heat sealing and edge sealing block 43 are opened, and the composite film 500 is disconnected, the rack transmission group 600 drives the rack 100, the material placing table 200, the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 to move along the -A direction, stop at a certain position, the left heat sealing and edge sealing mechanism 300 and the right heat sealing and edge sealing mechanism 400 accelerate to the same speed as the composite film 500 in the A direction, and heat seal and edge seal the part adjacent to the a part of the composite film 500, so that the composite film 500 can advance at a constant speed without stopping, and the influence on the heat sealing and edge sealing period of the composite film is reduced.

[0121] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the above-mentioned embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A thermal lamination recapping device characterized by, It comprises a rack (100), a material placing table (200), a left hot-pressing edge sealing mechanism (300), and a right hot-pressing edge sealing mechanism (400) arranged on the rack (100); The material placing table (200) is arranged in the middle of the rack (100) and used for placing a composite film (500); The left hot-pressing edge sealing mechanism (300) is arranged on the left side of the rack (100), and the right hot-pressing edge sealing mechanism (400) is arranged on the right side of the rack (100); The left hot-pressing edge sealing mechanism (300) comprises a left driving group (31), a left upper hot-pressing block (32), and a left lower hot-pressing block (33); the left driving group (31) is used to drive the left upper hot-pressing block (32) and the left lower hot-pressing block (33) to open and close relative to each other, so as to hot-press and seal the membranes on both sides of the left edge of the composite film (500); The right hot-pressing edge sealing mechanism (400) comprises a right driving group (41), a right upper hot-pressing block (42), and a right lower hot-pressing block (43); the right driving group (41) is used to drive the right upper hot-pressing block (42) and the right lower hot-pressing block (43) to open and close relative to each other, so as to hot-press and seal the membranes on both sides of the right edge of the composite film (500).

2. The thermal lamination fin sealing apparatus of claim 1, wherein: The left hot-pressing edge sealing mechanism (300) and the right hot-pressing edge sealing mechanism (400) have the same structure; The left hot-pressing edge sealing mechanism (300) further comprises a left support (39), a left front sliding rail (302), and a left rear sliding rail (303); The fixed end of the left driving group (31) is fixed to the left support (39), and the left upper hot-pressing block (32) and the left lower hot-pressing block (33) are in a strip shape and parallel to the transmission direction of the composite film (500); The left front sliding rail (302) and the left rear sliding rail (303) are parallel to each other and fixed to the left support (39) and perpendicular to the transmission direction of the composite film (500); The left upper hot-pressing block (32) and the left lower hot-pressing block (33) are parallel to each other and slide up and down on the left front sliding rail (302) and the left rear sliding rail (303).

3. The thermal lamination fin sealing apparatus of claim 2, wherein: The left driving group (31) comprises a driving member (311), a lead screw (312), a first sliding block (313), and a second sliding block (314); The left support (39) is provided with a first through groove (391) and a second through groove (392); The first through groove (391) is located above the second through groove (392); The fixed end of the driving member (311) is fixed to the left support (39), and the output end of the driving member (311) is in transmission connection with the lead screw (312); Along the length direction of the lead screw (312), the thread direction of the upper part of the lead screw (312) is opposite to that of the lower part of the lead screw (312); The first sliding block (313) is slidingly arranged on the upper part of the lead screw (312), and the first sliding block (313) is fixedly connected with the left upper hot-pressing block (32) through the first through groove (391); The second sliding block (314) is arranged on the upper part of the lead screw (312), and the second sliding block (314) is fixedly connected with the lower left hot pressing block (33) through the second through groove (392); The driving member (311) drives the lead screw (312) to rotate, so as to drive the first sliding block (313) and the upper left hot pressing block (32) to open and close relative to the second sliding block (314) and the lower left hot pressing block (33).

4. The thermal lamination fin sealing apparatus of claim 3, wherein: The left support (39) is fixedly connected with a limiting piece (34) between the first sliding block (313) and the second sliding block (314), and the limiting piece (34) is used to limit the minimum distance between the upper left hot pressing block (32) and the lower left hot pressing block (33).

5. The thermal lamination fin sealing apparatus of claim 3, wherein: The left hot pressing edge sealing mechanism (300) further comprises an upper left follower block (351), a lower left follower block (352), an upper left position sensing group (353), and a lower left position sensing group (354); The upper left follower block (351) is fixedly connected to the first sliding block (313), and the lower left follower block (352) is fixedly connected to the second sliding block (314); The upper left position sensing group (353) and the lower left position sensing group (354) are both fixedly arranged on the left support (39); The upper left position sensing group (353) is used to sense whether the upper left follower block (351), the first sliding block (313), and the upper left hot pressing block (32) move to the lowest point, and the lower left position sensing group (354) is used to sense whether the lower left follower block (352), the second sliding block (314), and the lower left hot pressing block (33) move to the highest point; When the upper left position sensing group (353) senses that the upper left follower block (351), the first sliding block (313), and the upper left hot pressing block (32) move to the lowest point, and the lower left position sensing group (354) senses whether the lower left follower block (352), the second sliding block (314), and the lower left hot pressing block (33) move to the highest point, the driving member (311) stops outputting.

6. The thermal lamination fin sealing apparatus of claim 5, wherein: The left hot pressing edge sealing mechanism (300) further comprises a positioning rail (361), an upper left locking group (362), and a lower left locking group (363); The positioning rail (361) is fixed to the left support (39); The upper left locking group (362) and the lower left locking group (363) are both detachably connected with the positioning rail (361); The upper left position sensing group (353) is fixed to the positioning rail (361) through the upper left locking group (362); The lower left position sensing group (354) is fixed to the positioning rail (361) through the lower left locking group (363).

7. The thermal lamination fin sealing apparatus of claim 1, wherein: The upper left hot pressing block (32), the lower left hot pressing block (33), the upper right hot pressing block (42), and the lower right hot pressing block (43) have the same structure. The left upper hot pressing block (32) comprises a heat block (321), a left heat insulation block (322) fixed to the left side of the heat block (321), and a right heat insulation block (323) fixed to the right side of the heat block (321), and the heat block (321) protrudes from the left heat insulation block (322) and the right heat insulation block (323) and is in direct contact with the composite film (500).

8. The thermal lamination fin sealing apparatus of claim 1, wherein: The rack (100) is further provided with a distance adjusting group (310) for adjusting the distance between the left hot pressing edge sealing mechanism (300) and the right hot pressing edge sealing mechanism (400).

9. The thermal lamination fin sealing apparatus of claim 8, wherein: The distance adjusting group (310) comprises a distance adjusting slide rail (37) and a distance adjusting fixing member (38), the distance adjusting slide rail (37) is fixed to the rack (100), and the distance adjusting slide rail (37) is perpendicular to the transmission direction of the composite film (500). The left hot pressing edge sealing mechanism (300) and the right hot pressing edge sealing mechanism (400) slide on the distance adjusting slide rail (37), and the distance adjusting fixing member (38) is used to fix the left hot pressing edge sealing mechanism (300) and the right hot pressing edge sealing mechanism (400) on the distance adjusting slide rail (37).

10. The thermal lamination fin sealing apparatus of claim 1, wherein: Further comprising a rack transmission group (600), the rack (100) is slidingly arranged on the rack transmission group (600), and the rack transmission group (600) is used to drive the rack (100), the material placing table (200), the left hot pressing edge sealing mechanism (300), and the right hot pressing edge sealing mechanism (400) to move in the same direction and / or in the opposite direction along the transmission direction of the composite film (500). When the rack transmission group (600) drives the rack (100), the material placing table (200), the left hot pressing edge sealing mechanism (300), and the right hot pressing edge sealing mechanism (400) to move in the same direction along the transmission direction of the composite film (500), the moving speed of the rack (100) is equal to the transmission speed of the composite film (500).

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