CN219017716U - High-speed hot press for battery cell - Google Patents

Abstract

The utility model provides a high-speed hot press for a battery cell, which comprises a code scanning device, a code scanning NG carrying device, a code scanning NG pulling belt, a feeding device, a turnover device, a loading and unloading device, a hot pressing device, a discharging device, a process NG carrying device and a process NG pulling belt. The code scanning device scans the code of the electric core, and the code scanning NG carrying device carries the electric core scanned with the code NG to the code scanning NG pull belt for temporary storage; the feeding device conveys the code scanning OK battery cell to a battery cell overturning device, and the battery cell overturning device overturns the battery cell from a horizontal flat stand to a vertical flat stand; the loading and unloading device forks the battery core and transfers the battery core to the hot pressing device, and the hot pressing device carries out hot pressing and resistance measurement on the battery core; the loading and unloading device forks the battery cell to the turnover device, and the turnover device turns the battery cell from a vertical flat to a horizontal flat; the discharging device conveys the battery core to an external discharging pull belt, and the process NG conveying device conveys the NG battery core to the process NG pull belt for temporary storage. The utility model adopts two groups of four-layer double-position hot pressing devices to form a double-channel with beat matching, thereby improving the single machine productivity.

Description

High-speed hot press for battery cell

Technical Field

The utility model belongs to the technical field of electric core hot pressing, and particularly relates to an electric core high-speed hot press.

Background

The anode of the cell of a secondary battery such as a lithium battery is coated with lithium-containing amorphous carbon powder (total thickness is as much as 15 um) on both sides of a copper foil (thickness is as much as 5 um), the cathode is coated with nickel, manganese and cobalt powder (total thickness is as much as 20 um) on both sides of an aluminum foil (thickness is as much as 8 um), the diaphragm (total thickness is as much as 12 um) is a round micropore which is coated with a ceramic particle (Al 2O3 or SiO 2) layer (thickness is as much as 6 um) on one side of a polyolefin film (PE film, PP film or PP/PE/PP composite film) and then a polymer binder (polyvinylidene fluoride-hexafluoropropylene copolymer, polyvinylidene fluoride, polymethyl methacrylate, polyethylene oxide, polyacrylonitrile, polystyrene, polyvinyl acetate and polyvinylpyrrolidone) on the other side of the ceramic particle layer and the polyolefin film, and the diaphragm is densely coated with round micropores through which lithium ions can pass, thereby playing a role of a special screen with high resistance in an electrochemical system of the battery. The winding cell adopts a cathode electrode belt, an anode electrode belt and a diaphragm belt which are overlapped by four layers of a cathode, a diaphragm, an anode and a diaphragm (the ceramic particle layer of the diaphragm belt faces the anode), and a rough blank of the winding cell is prepared by winding and multi-stacking; the laminated battery core adopts a cathode pole piece, an anode pole piece and a diaphragm belt or diaphragm sheet to be overlapped with four layers of a cathode, a diaphragm, an anode and a diaphragm (the ceramic particle layer of the diaphragm belt or the diaphragm sheet faces the anode), and a coarse blank of the laminated battery core is prepared by repeatedly overlapping a plurality of stacks. The cathode strip or pole piece, the anode strip or pole piece, the diaphragm strip or diaphragm piece cannot be dried so as to prevent breakage and powder falling during winding or lamination, and the cell rough blank is fluffy, so that the cell rough blank is large in space volume and inconvenient to take after being not shaped.

The finished battery cell requires that cathode electrode strips or pole pieces, anode electrode strips or pole pieces and diaphragm strips or diaphragm sheets are dried, and the cathode electrode strips or pole pieces and the anode electrode strips or pole pieces are fully contacted with the diaphragm strips or diaphragm sheets but cannot block round micropores and deform the round micropores so as to ensure the overall high-resistance special screen performance (such as the resistance value is between the lower limit 3MΩ and the upper limit 21MΩ) of the battery cell, so that the battery cell rough blank can be a qualified finished battery cell after being dried and properly compressed.

Heating causes moisture to become water vapor and spill out to dry the material and to expel some of the air between the materials, while causing the grains of the solid material to coarsen or the texture of the material to change, resulting in a decrease in inter-grain bonding forces that reduces the yield strength of the solid material and softens and tends to be compressed, wherein the polymer binder softens and tends to expand and penetrate.

In the prior art, a primary hot press which is compressed while heating and pressurizing to enable the crude cell blank to be heated and pressurized and dried is adopted, and the existing hot press generally adopts a plurality of multi-layer unit hot press devices with single channels to be combined according to beat matching requirements and then is matched with a feeding device, a turnover device, a loading and unloading device and a discharging device. Because of different diaphragm materials, anode and cathode materials and different electric core hot pressing process parameters, the hot pressing time is required to be different from 15s to 150s, and the existing hot press cannot meet the requirement of high productivity.

Disclosure of Invention

The utility model aims to provide a high-speed hot press for a battery cell, which adopts two groups of four-layer double-position hot pressing devices, and forms a double channel with a beat matching with a feeding device, four overturning devices, two loading and unloading devices and a discharging device, so that the productivity of a single machine can be improved.

The utility model discloses a high-speed hot press for a battery cell, which comprises a machine table, a code scanning device, a code scanning NG carrying device, a code scanning NG pulling belt, a feeding device, four turnover devices, two loading and unloading devices, eight hot pressing devices, a discharging device, a process NG carrying device and a process NG pulling belt, wherein the code scanning device, the code scanning NG carrying device, the code scanning NG pulling belt, the feeding device, the four turnover devices, the two loading and unloading devices are arranged on the machine table;

the code scanning device scans codes of the battery cells fed by the external incoming material pulling belt and informs the code scanning NG carrying device of code scanning NG information;

the code scanning NG carrying device carries the electric core of the code scanning NG to the code scanning NG pull belt for temporary storage;

the feeding device conveys the code scanning OK battery cells to the battery cell overturning device, and one feeding device is provided with four groups of two pairs of feeding clamping claws;

the turnover device turns the battery core from a horizontal flat to a vertical flat for the loading and unloading device to fork, or turns the battery core from the vertical flat to the horizontal flat for the unloading device to grasp, each turnover device is provided with four groups of turnover clamps, and each group of turnover clamps is provided with two pairs of turnover clamps;

the loading and unloading device is used for forking the battery cells and transferring the battery cells to the hot pressing device, or is used for forking the battery cells from the hot pressing device and transferring the battery cells to the turnover device, each loading and unloading device comprises two loading and unloading mechanisms, and each loading and unloading mechanism is provided with four layers, four groups and two pairs of loading and unloading clamping jaws;

the hot pressing devices are used for carrying out hot pressing and resistance measurement on the battery cells, each hot pressing device is provided with four layers of hot pressing chambers, and each layer of hot pressing chamber is provided with two hot pressing positions;

the discharging device conveys the battery cell to an external discharging pull belt;

the process NG carrying device carries the battery core of the process NG onto the process NG pull belt from the external blanking pull belt for temporary storage;

the electric core high-speed hot press adopts two groups of four hot pressing devices respectively, wherein the four hot pressing devices are arranged in two rows along a first direction of the length direction of the machine table, the hot pressing chambers face in a second direction of the width direction of the machine table which is perpendicular to the first direction, the directions of the groups are uniform, the directions of the two groups are opposite, and the four hot pressing devices of the two groups respectively form a hot pressing double channel; four turning devices are respectively arranged at two ends of the hot pressing device along the first direction, two loading and unloading devices are respectively arranged outside the hot pressing chambers of the two hot pressing devices along the first direction and transversely span the two turning devices, one feeding device is arranged at one end of the machine table in the first direction, the external feeding drawstring and the feeding end of the turning devices are covered, one discharging device is arranged at the other end of the machine table in the first direction, the discharging end of the turning devices and the external discharging drawstring are covered, and a beat-matched high-speed hot pressing assembly line is formed.

Further, the code scanning NG carrying device comprises a code scanning NG feeding bracket, a code scanning NG feeding translation module, a code scanning NG feeding lifting module and a code scanning NG feeding manipulator; the code scanning NG feeding translation module is horizontally fixed on the code scanning NG feeding support, the code scanning NG feeding lifting module is vertically fixed on the sliding block of the code scanning NG feeding translation module, and the code scanning NG feeding mechanical arm is fixed on the sliding block of the code scanning NG feeding lifting module.

Further, the code scanning NG pull belt comprises a pull belt bracket, a pull belt driving assembly, a pull belt driving belt and a preset number of carrying discs; the pull belt driving assembly and the pull belt transmission assembly are both arranged on the pull belt support, the power output end of the pull belt driving assembly is in transmission connection with the pull belt transmission assembly, and the pull belt transmission belt is wound outside the pull belt driving assembly and the pull belt transmission assembly, and the carrying discs with the preset number are fixedly connected with the pull belt transmission belt.

Further, the feeding device comprises a feeding support, a feeding driving module and a feeding manipulator; the feeding driving module is fixed on the feeding support, the power output end of the feeding driving module is in transmission connection with the feeding manipulator, the feeding driving module is used for driving the feeding manipulator to lift and rotate, the feeding manipulator comprises a mounting beam, a feeding manipulator driving piece and eight pairs of feeding clamping jaws fixed below the mounting beam, the eight pairs of feeding clamping jaws are arranged in four groups along the first direction at preset row spacing intervals, each two pairs of feeding clamping jaws are arranged along the second direction at preset column spacing intervals, and the feeding manipulator driving piece can drive a pair of feeding clamping jaws to open and close relatively along the first direction.

Further, the turnover device comprises a turnover support, a turnover driving assembly, a turnover transmission assembly, a turnover fixing shaft, a turnover beam, a turnover pull rod and four turnover clamps; the turnover driving assembly is connected with the turnover driving assembly and sleeved on the turnover fixing shaft, the turnover beam is fixed on the turnover driving assembly and sleeved on the turnover fixing shaft, one turnover fixture is fixed on one end of the turnover fixing shaft, the other three turnover fixtures are rotatably fixed on the turnover beam, each fixture can clamp two battery cores with preset row spacing, the three turnover pull rods are hinged between the two adjacent turnover fixtures, and the turnover device is fixed on the machine table in the first direction of the arrangement direction of the feeding device and the discharging device by four turnover fixtures.

Further, the loading and unloading device further comprises a straight rack and a loading and unloading sliding group; the straight toothed bar is fixed on the machine table along a first direction parallel to the arrangement direction of the feeding device and the discharging device, the sliding rails of the loading and unloading sliding group are fixed on the machine table along the first direction, and the two loading and unloading mechanisms are fixedly connected with the sliding blocks of the loading and unloading sliding group and meshed with the straight toothed bar; the two loading and unloading mechanisms can respectively reciprocate along the first direction.

Further, the loading and unloading mechanism comprises a loading and unloading bracket, a first moving mechanism, a second moving mechanism and a third moving mechanism; the four groups of two pairs of loading and unloading clamping jaws are respectively fixed on the moving end of the third moving mechanism, the third moving mechanism is fixed on the loading and unloading support, the loading and unloading support is fixed on the moving end of the second moving mechanism, the second moving mechanism is fixed on the first moving mechanism, the second moving mechanism drives the loading and unloading support to move along the second direction, the third moving mechanism drives a plurality of loading and unloading clamping jaws to move along a third direction perpendicular to the first direction and the second direction, the first moving mechanism is fixedly connected with a sliding block of the loading and unloading sliding group and meshed with the straight toothed bar, and the first moving mechanism can drive the loading and unloading mechanism to reciprocate along the first direction.

Further, the hot pressing device comprises a frame assembly, four hot pressing modules erected in the height direction of the frame assembly, a hot pressing driving mechanism, a hot pressing lifting mechanism and a resistance testing mechanism;

the hot-pressing module comprises a lower hot-pressing plate and an upper hot-pressing plate, wherein a hot-pressing chamber is formed by a space between the upper hot-pressing plate and the lower hot-pressing plate which are arranged in parallel up and down, the upper hot-pressing plate is provided with an upper electric core contact surface for contacting an electric core, and the lower hot-pressing plate is provided with a lower electric core contact surface for bearing the electric core;

the hot-pressing driving mechanism comprises a hot-pressing driving assembly, a force application assembly and a force transmission assembly; the hot pressing driving assembly drives the force application assembly, and the force transmission assembly can transmit the pressure of the force application assembly to the hot pressing module closest to the hot pressing driving mechanism;

the hot pressing lifting mechanism is used for driving the hot pressing module to lift so as to open or close the hot pressing chamber, and in the hot pressing process, the gravity of the hot pressing module above the hot pressing lifting mechanism can be counteracted by the hot pressing lifting mechanism under the cooperation of the output proportional valve;

the resistance testing mechanism is arranged on the hot pressing module and located at the front end and the rear end of the hot pressing chamber, and each hot pressing device is provided with eight resistance testing mechanisms for detecting the resistance value of the battery cell.

Further, the frame assembly comprises a frame, four sliding groups, four sliding carriages and a force application plate; the frame comprises a top plate, four upright posts, a bottom plate and nuts, wherein the upright posts are vertically fixed between the top plate and the bottom plate through the nuts; the sliding rails of the four sliding groups are vertically fixed on the inner sides of the upright posts, and the sliding frames are fixed between the sliding blocks of the two sliding groups at the same height position; the force application plate is fixed between the sliding blocks of the four uppermost sliding groups, the four hot pressing plate assembly mounting plates are respectively mounted on the two sliding blocks at the same height position, the upper hot pressing plate and the lower hot pressing plate are respectively mounted on the bottom surface and the top surface of the hot pressing plate assembly mounting plate, and the lowest lower hot pressing plate is mounted on the bottom plate.

Further, the number of pairs of the feeding clamping jaws of the feeding device, the number of pairs of the discharging clamping jaws of the discharging device, the number of pairs of the overturning clamps of the overturning device, the number of pairs of the loading clamping jaws of the loading device and the number of the hot-pressing positions of the hot-pressing chamber of the hot-pressing device are eight, so that eight electric cores of one-time feeding, overturning, loading, hot-pressing, unloading, re-overturning and discharging are possible.

Further, the distances between the rows and the columns of the feeding clamping jaws of each pair of the feeding device, the distances between the rows and the columns of the discharging clamping jaws of each pair of the discharging device, and the distances between the rows and the columns of the turning clamp of each pair of the turning clamp horizontally spread by the turning device are all equal;

the height of layers between the turnover clamps of the turnover device and the distances between the rows of the turnover clamps of each pair on the same turnover clamp, the height of layers between the loading clamping jaws of the loading and unloading device and the distances between the rows of the loading clamping jaws of the same group of two pairs of loading and unloading clamping jaws, the height of layers of the hot pressing chamber of the hot pressing device and the distances between the rows of the hot pressing positions of the hot pressing chamber of the same layer are equal, and eight electric cores can be fed, turned over, charged, hot pressed, unloaded, turned over again and discharged at one time.

Compared with the prior art, the utility model has the beneficial effects that:

the high-speed hot press for the battery cell integrates a code scanning device, a code scanning NG carrying device, a code scanning NG pull belt, a feeding device, four overturning devices, two loading and unloading devices, eight hot pressing devices, a discharging device, a process NG carrying device and a process NG pull belt; the automatic and beat matching of the cell code scanning, carrying, feeding, overturning, hot pressing, loading and unloading and discharging are realized, the single-machine productivity is improved, and the production requirement of high productivity is met.

Drawings

Fig. 1 is a schematic structural diagram of a high-speed hot press for a battery cell according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a code scanning device and an NG handling device of the high-speed hot press for the battery cell shown in fig. 1;

fig. 3 is a schematic structural diagram of a code scanning NG pull belt of the high-speed electric core hot press shown in fig. 1;

fig. 4 is a schematic structural diagram of a feeding device of the high-speed hot press for the battery cell shown in fig. 1;

fig. 5 is a schematic structural view of a feeding manipulator of the feeding device shown in fig. 4;

FIG. 6 is a schematic diagram of a turnover device of the high-speed hot press for the battery cell shown in FIG. 1;

FIG. 7 is a schematic diagram of a handling device of the high-speed hot press of FIG. 1;

FIG. 8 is a schematic view of a handling mechanism of the handling device of the high-speed battery cell hot press of FIG. 1;

fig. 9 is a schematic structural view of a hot press apparatus of the high-speed die hot press shown in fig. 1.

The attached drawings are used for identifying and describing:

10-the battery cell is arranged in a way of being connected with the battery,

a 100-code scanning device,

200-code scanning NG carrying device, 201-code scanning NG feeding bracket, 202-code scanning NG feeding translation module, 203-code scanning NG feeding lifting module, 204-code scanning NG feeding manipulator,

300-code sweeping NG pull belt, 301-pull belt bracket, 302-pull belt driving assembly, 303-pull belt driving assembly, 304-pull belt driving belt and 305-carrying disc,

400-feeding device, 401-feeding support, 402-feeding driving module, 403-feeding manipulator, 4031-mounting beam, 4032-feeding clamping jaw and 4033-feeding clamping jaw driving piece,

500-turning device, 501-turning support, 502-turning driving component, 503-turning driving component, 504-turning fixing shaft, 505-turning beam, 506-turning pull rod, 507-turning clamp and 5071-turning clamp,

600-handling device, 610-straight rack, 620-handling sled, 630-handling mechanism, 631-handling rack, 632-first movement mechanism, 633-second movement mechanism, 634-third movement mechanism, 635-handling jaw,

700-hot press apparatus, 710-frame assembly, 711-frame, 7111-top plate, 7112-upright, 7113-bottom plate, 7114-nut, 712-slide set, 713-carriage, 714-apply plate, 715-hot press plate assembly mounting plate,

720-hot pressing module, 721-lower hot pressing plate, 722-upper hot pressing plate, 723-hot pressing chamber,

730-hot press driving mechanism, 731-hot press driving assembly, 732-force application assembly, 733-force transmission assembly,

740-a hot-pressing lifting mechanism,

750-a resistance test mechanism, wherein the resistance test mechanism comprises a resistor,

800-a blanking device, wherein the blanking device comprises a blanking device,

900-a process NG handling device,

1000-a process NG pull strap,

1100-an external incoming draw tape,

1200-external blanking drawstring.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., are based on those shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, a high-speed hot press for a battery core provided in this embodiment is shown, which includes a machine, a code scanning device 100, a code scanning NG carrying device 200, a code scanning NG pull belt 300, a feeding device 400, four turning devices 500, two loading and unloading devices 600, eight hot pressing devices 700, a discharging device 800, a process NG carrying device 900 and a process NG pull belt 1000.

The code scanning device 100 scans codes of the battery cells 10 fed by the external incoming material pull belt 1100 and notifies the code scanning NG carrying device 200 of code scanning NG information; the code scanning NG carrying device 200 carries the battery cells 10 of the code scanning NG to the code scanning NG pull belt 300 for temporary storage; the feeding device 400 conveys the code scanning OK battery cell 10 to the battery cell overturning device 500; the turnover device 500 turns the battery cell 10 from a horizontal flat to a vertical flat for the loading and unloading device 600 to fork, or turns the battery cell 10 from the vertical flat to the horizontal flat for the unloading device 800 to grasp; the loading and unloading device 600 forks and transfers the battery cell 10 to the hot pressing device 700, or forks and transfers the battery cell 10 from the hot pressing device 700 to the turning device 500; the hot pressing device 700 performs hot pressing and resistance measurement on the battery cell 10, and the discharging device 800 conveys the battery cell 10 to the external discharging pull belt 1200; the process NG handling device 900 carries the cell 10 of the process NG from the external blanking pull tape 1200 onto the process NG pull tape 1000 for temporary storage.

Referring to fig. 2, the code scanning NG handling device 200 includes a code scanning NG feeding support 201, a code scanning NG feeding translation module 202, a code scanning NG feeding lifting module 203, and a code scanning NG feeding manipulator 204. Sweep sign indicating number NG material loading translation module 202 level and fix on sweeping sign indicating number NG material loading support 201, sweep sign indicating number NG material loading lifting module 203 vertical fixation on sweeping the slider of sign indicating number NG material loading translation module 202, sweep sign indicating number NG material loading manipulator 204 and fix on sweeping the slider of sign indicating number NG material loading lifting module 203.

Referring to fig. 3, the code scanning NG pull tape 300 includes a pull tape holder 301, a pull tape driving assembly 302, a pull tape driving assembly 303, a pull tape driving belt 304, and a predetermined number of carrier reels 305. The pull belt driving assembly 302 and the pull belt transmission assembly 303 are both arranged on the pull belt bracket 301, the power output end of the pull belt driving assembly 302 is in transmission connection with the pull belt transmission assembly 303, the pull belt transmission belt 304 is wound outside the pull belt driving assembly 302 and the pull belt transmission assembly 303, and a preset number of carrier plates 305 are fixedly connected with the pull belt transmission belt 304.

Referring to fig. 4 and 5, a loading device 400 includes a loading stand 401, a loading driving module 402, and a loading manipulator 403. The feeding driving module 402 is fixed on the feeding support 401, a power output end of the feeding driving module 402 is in transmission connection with the feeding manipulator 403, the feeding driving module 402 is used for driving the feeding manipulator 403 to lift and rotate, and the feeding manipulator 403 comprises a mounting beam 4031, eight pairs of feeding clamping claws 4032 fixed below the mounting beam 4031 and a feeding manipulator driving piece 4033. Eight pairs of feeding clamping claws 4032 are arranged at intervals of a preset row spacing along the first direction, two pairs of feeding clamping claws 4032 of each group are arranged at intervals of a preset column spacing along the second direction, and a feeding manipulator driving part 4033 can drive a pair of feeding clamping claws 4032 to open and close relatively along the first direction.

Referring to fig. 6, the turning device 500 includes a turning support 501, a turning driving assembly 502, a turning driving assembly 503, a turning fixing shaft 504, a turning beam 505, a turning bar 506, and four turning jigs 507; the turnover driving assembly 502 and the turnover fixing shaft 504 are fixed on the turnover support 501, the turnover driving assembly 503 is connected with the turnover driving assembly 502 and sleeved on the turnover fixing shaft 504, the turnover beam 505 is fixed on the turnover driving assembly 503 and sleeved on the turnover fixing shaft 504, one turnover clamp 507 is fixed on one end of the turnover fixing shaft 504, the other three turnover clamps 507 are rotatably fixed on the turnover beam 505, each clamp 507 can clamp two battery cores 10 with preset column spacing, the three turnover pull rods 506 are hinged between the two adjacent turnover clamps 507, and the turnover device 500 is fixed on a machine table in a first direction of the arrangement direction of the four turnover clamps 507 in the feeding device 400 and the discharging device 800.

Referring to fig. 7, the handling device 600 further includes a straight rack 610 and a handling sled 620; the straight racks 610 are fixed on the machine along a first direction parallel to the arrangement direction of the feeding device 400 and the discharging device 800, the sliding rails of the loading and unloading sliding groups 620 are fixed on the machine along the first direction, and the two loading and unloading mechanisms 630 are fixedly connected with the sliding blocks of the loading and unloading sliding groups 620 and meshed with the straight racks 610; the two loading and unloading mechanisms 630 are each reciprocally movable in the first direction.

Referring to FIG. 8, loading mechanism 630 includes loading bracket 631, first travel mechanism 632, second travel mechanism 633, third travel mechanism 634, and four sets of two pairs of loading jaws 635 each; eight pairs of loading and unloading clamping jaws 635 are fixed on the moving end of a third moving mechanism 634, the third moving mechanism 634 is fixed on a loading and unloading bracket 631, the loading and unloading bracket 631 is fixed on the moving end of a second moving mechanism 633, the second moving mechanism 633 is fixed on a first moving mechanism 632, the second moving mechanism 632 drives the loading and unloading bracket 631 to move along a second direction, the third moving mechanism 634 drives a plurality of loading and unloading clamping jaws 635 to move along a third direction perpendicular to the first direction and the second direction, the first moving mechanism 632 is fixedly connected with a sliding block of a loading and unloading sliding group 620 and is meshed with a straight toothed bar 610, and the first moving mechanism 632 can drive the loading and unloading mechanism 630 to move back and forth along the first direction.

Referring to fig. 9, the thermo-compression device 700 includes a frame assembly 710, four thermo-compression modules 720 installed in a height direction of the frame assembly 710, a thermo-compression driving mechanism 730, a thermo-compression elevating mechanism 740, and a resistance testing mechanism 750.

The hot pressing module 720 includes a lower hot pressing plate 721 and an upper hot pressing plate 722, and a space between the upper hot pressing plate 722 and the lower hot pressing plate 721, which are arranged in parallel up and down, forms a hot pressing chamber 723, the upper hot pressing plate 722 has an upper cell contact surface for contacting the cell 10, and the lower hot pressing plate 721 has a lower cell contact surface for bearing the cell 10.

The hot press driving mechanism 730 comprises a hot press driving assembly 731, a force application assembly 732, and a force transmission assembly 733; the hot press driving assembly 731 drives the force application assembly 732, and the force transmission assembly 733 may transmit the pressure of the force application assembly 732 to the hot press module 720 closest to the hot press driving mechanism 730.

The hot pressing lifting mechanism 740 is used for driving the hot pressing module 730 to lift so as to open or close the hot pressing chamber 723, and in the hot pressing process, the hot pressing lifting mechanism 740 can counteract the gravity of the hot pressing module 720 above the hot pressing lifting mechanism 740 under the cooperation of the force-exerting proportional valve.

The resistance testing mechanisms 750 are arranged on the hot pressing module and located at the front end and the rear end of the hot pressing chamber 723 respectively, and each hot pressing device 700 is provided with eight resistance testing mechanisms 750 for detecting the resistance value of the battery cell 10.

The frame assembly 710 includes a frame 711, four slide sets 712, four carriages 713, and a force application plate 714. The frame 711 includes a top plate 7111, four upright posts 7112, a bottom plate 7113, and nuts 7114, the upright posts 7112 being vertically fixed between the top plate 7111 and the bottom plate 7113 by the nuts 7114; the sliding rails of the four sliding groups 712 are vertically fixed on the inner side of the upright column 7112, and the sliding frame 713 is fixed between the sliding blocks of the two sliding groups 712 at the same height position; the force application plate 714 is fixed between the sliding blocks of the four uppermost sliding blocks 712, the four hot press plate assembly mounting plates 715 are respectively mounted on the two sliding blocks 713 at the same height position, the upper hot press plate 722 and the lower hot press plate 721 are respectively mounted on the bottom surface and the top surface of the hot press plate assembly mounting plate 715, and the lowermost lower hot press plate 721 is mounted on the bottom plate 7113.

Further, the number of pairs of the feeding jaws 4032 of the feeding device 400, the number of pairs of the discharging jaws of the discharging device 800, the number of pairs of the turning jaws 5071 of the turning clamp 507 of the turning device 500, the number of pairs of the loading jaws 635 of the loading device 600, and the number of hot-pressing sites of the hot-pressing chamber 723 of the hot-pressing device 700 are eight, so that eight electric cores of one-time feeding, turning, loading, hot-pressing, unloading, re-turning and discharging are possible.

Further, the distance between the rows and the columns of the pairs of feeding jaws 4032 of the feeding device 400, the distance between the rows and the columns of the pairs of discharging jaws of the discharging device 800, and the distance between the rows and the columns of the pairs of turning jaws 5071 horizontally spread by the turning jigs 507 of the turning device 500 are all equal.

Further, the height of the layers between the turning jigs 507 of the turning device 500 and the distance between the rows of the turning jigs 5071 of each pair on the same turning jig 507, the height of the layers between the loading and unloading jaws 635 of the loading and unloading device 600 and the distance between the rows of the two pairs of loading and unloading jaws 635 of the same group, the height of the layers of the hot pressing chambers 723 of the hot pressing device 700 and the distance between the rows of the hot pressing positions of the hot pressing chambers 723 of the same layer are equal, so that eight electric cores can be fed, turned over, charged, hot pressed, discharged, turned over again at one time.

The high-speed hot press for the battery core of the embodiment adopts two groups of four hot pressing devices 700 respectively along the first direction of the length direction of the machine table to form two rows, the hot pressing chambers 723 face in the second direction of the width direction of the machine table perpendicular to the first direction, the directions of each group are uniform, the directions of the two groups are opposite, and the four hot pressing devices 700 of each group form a hot pressing double channel; the four turning devices 500 are respectively arranged at two ends of the two groups of hot pressing devices 700 along the first direction, the two loading and unloading devices 600 are respectively arranged outside hot pressing chambers 723 of the two groups of hot pressing devices 700 along the first direction and transversely span the two turning devices 500, one feeding device 400 is arranged at one end of the first direction of the machine table length, covers the external feeding drawstring 1100 and the feeding end turning device 500, one discharging device 800 is arranged at the other end of the first direction of the machine table length, covers the discharging end turning device 500 and the external discharging drawstring 1200, forms a beat-matched high-speed hot pressing assembly line, improves single machine productivity, and meets the production requirement of high productivity.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (11)

1. The high-speed hot press for the battery cell comprises a machine table and is characterized by further comprising a code scanning device, a code scanning NG carrying device, a code scanning NG pulling belt, a feeding device, four turnover devices, two loading and unloading devices, eight hot pressing devices, a discharging device, a process NG carrying device and a process NG pulling belt, wherein the code scanning device, the code scanning NG carrying device, the code scanning NG pulling belt, the feeding device, the four turnover devices, the two loading and unloading devices are arranged on the machine table;

the code scanning device scans codes of the battery cells fed by the external incoming material pulling belt and informs the code scanning NG carrying device of code scanning NG information;

the code scanning NG carrying device carries the electric core of the code scanning NG to the code scanning NG pull belt for temporary storage;

the feeding device conveys the code scanning OK battery cells to the battery cell overturning device, and one feeding device is provided with four groups of two pairs of feeding clamping claws;

the turnover device turns the battery core from a horizontal flat to a vertical flat for the loading and unloading device to fork, or turns the battery core from the vertical flat to the horizontal flat for the unloading device to grasp, each turnover device is provided with four groups of turnover clamps, and each group of turnover clamps is provided with two pairs of turnover clamps;

the loading and unloading device is used for forking the battery cells and transferring the battery cells to the hot pressing device, or is used for forking the battery cells from the hot pressing device and transferring the battery cells to the turnover device, each loading and unloading device comprises two loading and unloading mechanisms, and each loading and unloading mechanism is provided with four layers, four groups and two pairs of loading and unloading clamping jaws;

the hot pressing devices are used for carrying out hot pressing and resistance measurement on the battery cells, each hot pressing device is provided with four layers of hot pressing chambers, and each layer of hot pressing chamber is provided with two hot pressing positions;

the discharging device conveys the battery cell to an external discharging pull belt;

the process NG carrying device carries the battery core of the process NG onto the process NG pull belt from the external blanking pull belt for temporary storage;

the electric core high-speed hot press adopts two groups of four hot pressing devices respectively, wherein the four hot pressing devices are arranged in two rows along a first direction of the length direction of the machine table, the hot pressing chambers face in a second direction of the width direction of the machine table which is perpendicular to the first direction, the directions of the groups are uniform, the directions of the two groups are opposite, and the four hot pressing devices of the two groups respectively form a hot pressing double channel; four turning devices are respectively arranged at two ends of the hot pressing device along the first direction, two loading and unloading devices are respectively arranged outside the hot pressing chambers of the two hot pressing devices along the first direction and transversely span the two turning devices, one feeding device is arranged at one end of the machine table in the first direction, the external feeding drawstring and the feeding end of the turning devices are covered, one discharging device is arranged at the other end of the machine table in the first direction, the discharging end of the turning devices and the external discharging drawstring are covered, and a beat-matched high-speed hot pressing assembly line is formed.

2. The electrical core high-speed hot press of claim 1, wherein the code scanning NG handling device comprises a code scanning NG feeding bracket, a code scanning NG feeding translation module, a code scanning NG feeding lifting module and a code scanning NG feeding manipulator; the code scanning NG feeding translation module is horizontally fixed on the code scanning NG feeding support, the code scanning NG feeding lifting module is vertically fixed on the sliding block of the code scanning NG feeding translation module, and the code scanning NG feeding mechanical arm is fixed on the sliding block of the code scanning NG feeding lifting module.

3. The die high-speed hot press of claim 1, wherein the code scanning NG draw tape comprises a draw tape bracket, a draw tape driving assembly, a draw tape driving belt and a predetermined number of carrier plates; the pull belt driving assembly and the pull belt transmission assembly are both arranged on the pull belt support, the power output end of the pull belt driving assembly is in transmission connection with the pull belt transmission assembly, and the pull belt transmission belt is wound outside the pull belt driving assembly and the pull belt transmission assembly, and the carrying discs with the preset number are fixedly connected with the pull belt transmission belt.

4. The die high-speed hot press of claim 1, wherein the loading device comprises a loading support, a loading driving module and a loading manipulator; the feeding driving module is fixed on the feeding support, the power output end of the feeding driving module is in transmission connection with the feeding manipulator, the feeding driving module is used for driving the feeding manipulator to lift and rotate, the feeding manipulator comprises a mounting beam, a feeding manipulator driving piece and eight pairs of feeding clamping jaws fixed below the mounting beam, the eight pairs of feeding clamping jaws are arranged in four groups along the first direction at preset row spacing intervals, each two pairs of feeding clamping jaws are arranged along the second direction at preset column spacing intervals, and the feeding manipulator driving piece can drive a pair of feeding clamping jaws to open and close relatively along the first direction.

5. The high-speed hot press of claim 1, wherein the turnover device comprises a turnover support, a turnover driving assembly, a turnover transmission assembly, a turnover fixing shaft, a turnover beam, a turnover pull rod and four turnover clamps; the turnover driving assembly is connected with the turnover driving assembly and sleeved on the turnover fixing shaft, the turnover beam is fixed on the turnover driving assembly and sleeved on the turnover fixing shaft, one turnover fixture is fixed on one end of the turnover fixing shaft, the other three turnover fixtures are rotatably fixed on the turnover beam, each fixture can clamp two battery cores with preset row spacing, the three turnover pull rods are hinged between the two adjacent turnover fixtures, and the turnover device is fixed on the machine table in the first direction of the arrangement direction of the feeding device and the discharging device by four turnover fixtures.

6. The die high speed hot press of claim 1, wherein the handling device further comprises a spur rack and a handling sled; the straight toothed bar is fixed on the machine table along a first direction parallel to the arrangement direction of the feeding device and the discharging device, the sliding rails of the loading and unloading sliding group are fixed on the machine table along the first direction, and the two loading and unloading mechanisms are fixedly connected with the sliding blocks of the loading and unloading sliding group and meshed with the straight toothed bar; the two loading and unloading mechanisms can respectively reciprocate along the first direction.

7. The die high speed hot press of claim 6, wherein the handling mechanism includes a handling bracket, a first movement mechanism, a second movement mechanism, and a third movement mechanism; the four groups of two pairs of loading and unloading clamping jaws are respectively fixed on the moving end of the third moving mechanism, the third moving mechanism is fixed on the loading and unloading support, the loading and unloading support is fixed on the moving end of the second moving mechanism, the second moving mechanism is fixed on the first moving mechanism, the second moving mechanism drives the loading and unloading support to move along the second direction, the third moving mechanism drives eight pairs of loading and unloading clamping jaws to move along a third direction perpendicular to the first direction and the second direction, the first moving mechanism is fixedly connected with a sliding block of the loading and unloading sliding group and is meshed and connected with the straight toothed bar, and the first moving mechanism can drive the loading and unloading mechanism to reciprocate along the first direction.

8. The high-speed hot press of claim 1, wherein the hot press device comprises a frame assembly, four hot press modules erected in the height direction of the frame assembly, a hot press driving mechanism, a hot press lifting mechanism and a resistance testing mechanism;

the hot-pressing module comprises a lower hot-pressing plate and an upper hot-pressing plate, wherein a hot-pressing chamber is formed by a space between the upper hot-pressing plate and the lower hot-pressing plate which are arranged in parallel up and down, the upper hot-pressing plate is provided with an upper electric core contact surface for contacting an electric core, and the lower hot-pressing plate is provided with a lower electric core contact surface for bearing the electric core;

the hot-pressing driving mechanism comprises a hot-pressing driving assembly, a force application assembly and a force transmission assembly; the hot pressing driving assembly drives the force application assembly, and the force transmission assembly can transmit the pressure of the force application assembly to the hot pressing module closest to the hot pressing driving mechanism;

the hot pressing lifting mechanism is used for driving the hot pressing module to lift so as to open or close the hot pressing chamber, and in the hot pressing process, the gravity of the hot pressing module above the hot pressing lifting mechanism can be counteracted by the hot pressing lifting mechanism under the cooperation of the output proportional valve;

the resistance testing mechanism is arranged on the hot pressing module and located at the front end and the rear end of the hot pressing chamber, and each hot pressing device is provided with eight resistance testing mechanisms for detecting the resistance value of the battery cell.

9. The die high speed hot press of claim 8, wherein the frame assembly comprises a frame, four slide sets, four carriages, and a force plate; the frame comprises a top plate, four upright posts, a bottom plate and nuts, wherein the upright posts are vertically fixed between the top plate and the bottom plate through the nuts; the sliding rails of the four sliding groups are vertically fixed on the inner sides of the upright posts, and the sliding frames are fixed between the sliding blocks of the two sliding groups at the same height position; the force application plate is fixed between the four sliding blocks of the sliding group at the top, the four hot pressing plate assembly mounting plates are respectively arranged on the two sliding blocks at the same height position, the upper hot pressing plate and the lower hot pressing plate are respectively arranged on the bottom surface and the top surface of the hot pressing plate assembly mounting plate, and the lowest lower hot pressing plate is arranged on the bottom plate.

10. The high-speed hot press for electrical cores according to claim 1, wherein the number of pairs of the feeding clamping jaws of the feeding device, the number of pairs of the discharging clamping jaws of the discharging device, the number of pairs of the turning clamps of the turning device, the number of pairs of the loading clamping jaws of the loading and unloading device and the number of hot-pressing positions of the hot-pressing chamber of the hot-pressing device are eight, so that eight electrical cores of one-time feeding, turning, loading, hot-pressing, unloading, re-turning and discharging are possible.

11. The high-speed die press according to claim 10, wherein the distances between the rows and the columns of the pairs of the feeding jaws of the feeding device, the distances between the rows and the columns of the pairs of the discharging jaws of the discharging device, and the distances between the rows and the columns of the pairs of the turning clamps of the turning device are equal;

the height of layers between the turnover clamps of the turnover device and the distances between the rows of the turnover clamps of each pair on the same turnover clamp, the height of layers between the loading clamping jaws of the loading and unloading device and the distances between the rows of the loading clamping jaws of the same group of two pairs of loading and unloading clamping jaws, the height of layers of the hot pressing chamber of the hot pressing device and the distances between the rows of the hot pressing positions of the hot pressing chamber of the same layer are equal, and eight electric cores can be fed, turned over, charged, hot pressed, unloaded, turned over again and discharged at one time.

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