Hot pressing device

Abstract

The utility model discloses a hot pressing device, and belongs to the technical field of hot pressing equipment. According to the hot-pressing device, before hot pressing, a hot-pressed product can be placed on the lower hot-pressing block and descends along with the lower hot-pressing block, so that the hot-pressed product falls on the lower hot-pressing plate; after hot pressing, the lower hot-pressing block can lift a hot-pressed product on the lower hot-pressing plate, so that the manipulator can feed and discharge materials conveniently, and the hot-pressing plate, the manipulator and the hot-pressed product can be prevented from being scratched; the upper hot-pressing block can abut against the top of the product, so that the product is prevented from shifting when ascending and descending along with the lower hot-pressing block, the positioning precision of the product is guaranteed, and interference with a mechanical arm is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing equipment, in particular to a hot pressing device. Background Art

[0002] In the production process of lithium-ion batteries, after the battery cells are assembled, hot pressing equipment is required to perform hot pressing and shaping on the battery cells.

[0003] In the prior art, a robot is usually used to transport the battery cell to a hot pressing device. Specifically, the robot includes a pressing block, a pressing block driving member and two L-shaped jaws. The L-shaped jaws include a vertical claw body and a horizontal claw body. The vertical claw body and the horizontal claw body are connected to form an L-shaped structure. The two L-shaped jaws are respectively clamped on both sides of the width direction of the battery cell. The pressing block abuts against the top of the battery cell so that the bottom end of the battery cell is pressed against the horizontal claw body of the L-shaped jaw, thereby ensuring that the battery cell is clamped stably.

[0004] When this type of robot places a battery cell on a hot press plate, the L-shaped clamp is prone to interference with the hot press plate or the battery cell, resulting in scratches on the L-shaped clamp and the hot press plate, or even on the battery cell. Utility Model Content

[0005] The utility model aims to provide a hot pressing device, which is convenient for loading and unloading materials by a robot and can avoid scratches on a hot pressing plate, a robot and a battery cell.

[0006] In order to achieve the above objectives, the following technical solutions are provided:

[0007] A hot pressing device, comprising:

[0008] A lower hot pressing mechanism, the lower hot pressing mechanism comprises a lower hot pressing plate and a lower driving member, a lower hot pressing block is embedded on the upper surface of the lower hot pressing plate, the lower driving member can drive the lower hot pressing block to rise and fall, the hot pressing product can be placed on the lower hot pressing block and rise and fall with the lower hot pressing block, the upper surface of the lower hot pressing block can be flush with the upper surface of the lower hot pressing plate; the length of the lower hot pressing block along the first horizontal direction is less than the width of the hot pressing product;

[0009] An upper hot pressing mechanism comprises an upper hot pressing plate and an upper driving member, wherein the upper hot pressing plate can be raised and lowered and is arranged directly above the lower hot pressing plate, an upper hot pressing block is embedded in the lower surface of the upper hot pressing plate, and the upper driving member can drive the upper hot pressing block to rise and fall, the upper hot pressing block can be pressed against the top of the hot pressed product, and the lower surface of the upper hot pressing block can be flush with the lower surface of the upper hot pressing plate; along the second horizontal direction, the length of the upper hot pressing block is less than the length of the upper hot pressing plate; the second horizontal direction is perpendicular to the first horizontal direction.

[0010] As an optional solution of the hot pressing device, along the second horizontal direction, the length of the lower hot pressing block is equal to the length of the lower hot pressing plate;

[0011] Along the first horizontal direction, the length of the upper hot pressing block is equal to the length of the upper hot pressing plate.

[0012] As an optional solution of the hot pressing device, the lower hot pressing mechanism further includes a lower diaphragm, which is tensioned and fixed on the upper surface of the lower hot pressing block;

[0013] The upper hot pressing mechanism also includes an upper diaphragm and two tensioning mechanisms. The two tensioning mechanisms are respectively fixed at the two ends of the upper hot pressing plate along the second horizontal direction. The two ends of the upper diaphragm are respectively connected to the two tensioning mechanisms. The tensioning mechanisms can tension the upper diaphragm and can also make the upper diaphragm adhere to the lower surface of the upper hot pressing block and move with the upper hot pressing block.

[0014] As an optional solution of the hot pressing device, the tensioning mechanism includes:

[0015] A tensioning fixing seat, wherein the tensioning fixing seat is fixedly arranged at one end of the upper hot pressing plate along the second horizontal direction, and one end of the upper diaphragm is fixedly connected to the tensioning fixing seat;

[0016] A tensioning movable seat, the tensioning movable seat being slidably disposed on the tensioning fixed seat along a vertical direction;

[0017] A tensioning roller, the tensioning roller is rotatably arranged on the tensioning movable seat, and the upper diaphragm is wound around the outer side of the tensioning roller;

[0018] A tensioning elastic member, one end of which is fixed to the tensioning fixed seat, and the other end of which is connected to the tensioning movable seat.

[0019] As an optional solution of the hot pressing device, the tensioning mechanism further includes a guide roller, the guide roller is rotatably disposed on the tensioning fixing seat, and the upper diaphragm is wound around the outer side of the guide roller.

[0020] As an optional solution of the hot pressing device, the lower hot pressing mechanism further includes a lower gasket, which is fixedly arranged on a side of the lower diaphragm facing the lower hot pressing plate;

[0021] The upper hot pressing mechanism further comprises an upper gasket, which is fixedly arranged on a side of the upper diaphragm facing the upper hot pressing plate.

[0022] As an optional solution of the hot pressing device, the lower diaphragm is highland barley paper or DMD insulating paper; and / or,

[0023] The upper diaphragm is highland barley paper or DMD insulating paper; and / or,

[0024] The lower gasket is made of silicone foam; and / or,

[0025] The upper gasket is made of silicone foam.

[0026] As an optional solution of the hot pressing device, the lower hot pressing mechanism further includes a lower heating element, the lower heating element is used to heat the lower hot pressing plate, and the lower heating element includes a lower heating plate; and / or,

[0027] The upper hot pressing mechanism further includes an upper heating element, which is used to heat the upper hot pressing plate, and the upper heating element includes an upper heating plate.

[0028] As an optional solution of the hot pressing device, the lower hot pressing block is slidably arranged on the lower hot pressing plate along the vertical direction;

[0029] The upper hot pressing block is slidably arranged on the upper hot pressing plate along a vertical direction.

[0030] As an optional solution of the hot pressing device, the hot pressing device also includes a pressing mechanism, which includes a pressing piece and a pressing drive assembly, and the pressing drive assembly can drive the pressing piece to move so that the pressing piece can press the hot pressed product against the lower hot pressing block.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] According to the hot pressing device of the utility model, before hot pressing, the hot pressed product can be placed on the lower hot pressing block and descend with the lower hot pressing block, so that the hot pressed product falls on the lower hot pressing plate; after hot pressing, the lower hot pressing block can lift the hot pressed product on the lower hot pressing plate, so as to facilitate loading and unloading of the robot, and avoid scratches on the hot pressing plate, the robot and the hot pressing product; the upper hot pressing block can abut against the top of the product, so as to avoid displacement of the product when the lower hot pressing block is raised and lowered, thereby ensuring the positioning accuracy of the product and preventing interference with the robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The structure of the hot pressing device in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0034] Figure 2 The structure of the hot pressing device in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0035] Figure 3 It is a structural schematic diagram of the upper hot pressing mechanism (when the upper hot pressing block descends) in the embodiment of the utility model;

[0036] Figure 4 It is a structural schematic diagram of the upper hot pressing mechanism (when the upper hot pressing block is embedded in the upper hot pressing plate) in the embodiment of the utility model;

[0037] Figure 5 This is a structural schematic diagram of the lower hot pressing mechanism in the embodiment of the utility model;

[0038] Figure 6 It is an exploded view of the lower hot pressing plate, the lower gasket and the lower diaphragm in the embodiment of the utility model.

[0039] Reference numerals:

[0040] 1. Lower hot pressing mechanism; 11. Lower fixed seat; 12. Lower heat insulation plate; 13. Lower heating element; 14. Lower hot pressing plate; 141. Lower hot pressing block; 15. Lower driving element; 16. Lower diaphragm; 17. Lower gasket; 2. Upper hot pressing mechanism; 21. Upper fixed seat; 22. Upper heat insulation plate; 23. Upper heating element; 24. Upper hot pressing plate; 241. Upper hot pressing block; 25. Upper driving element; 261. Upper diaphragm; 262. Tensioning mechanism; 2621. Tensioning fixed seat; 2622. Tensioning movable seat; 2623. Tensioning roller; 2624. Tensioning elastic element; 2625. Guide roller; 27. Upper sliding connecting element; 3. Pressing mechanism; 31. Pressing element; 32. Pressing driving assembly; 321. Pressing translation driving element; 322. Pressing lifting driving element; 323. Adapter seat. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0048] like Figure 1-6As shown, this embodiment provides a hot pressing device, including a frame, a hot pressing drive, a lower hot pressing mechanism 1 and an upper hot pressing mechanism 2, the lower hot pressing mechanism 1 includes a lower fixed seat 11, a lower heat insulation plate 12, a lower heating member 13, a lower hot pressing plate 14 and a lower driving member 15, the lower fixed seat 11 is fixed on the frame, the lower heat insulation plate 12 is fixed between the lower fixed seat 11 and the lower hot pressing plate 14, the lower heating member 13 is used to heat the lower hot pressing plate 14; a lower hot pressing block 141 is embedded in the upper surface of the lower hot pressing plate 14, the lower driving member 15 can drive the lower hot pressing block 141 to rise and fall, the hot pressed product can be placed on the lower hot pressing block 141 and rise and fall with the lower hot pressing block 141, and the upper surface of the lower hot pressing block 141 can be flush with the upper surface of the lower hot pressing plate 14.

[0049] The upper hot pressing mechanism 2 includes an upper fixed seat 21, an upper heat insulation plate 22, an upper heating element 23, an upper hot pressing plate 24 and an upper driving element 25. The upper fixed seat 21 is slidably arranged on the frame along the vertical direction through sliding connections such as linear bearings. The upper heat insulation plate 22 is fixed between the upper fixed seat 21 and the upper hot pressing plate 24. The upper heating element 23 is used to heat the upper hot pressing plate 24. The upper hot pressing plate 24 is arranged directly above the lower hot pressing plate 14. The hot pressing driving element can drive the upper fixed seat 21 to rise and fall, so as to drive the upper hot pressing plate 24 to rise and fall, and then hot press the hot pressing product placed on the lower hot pressing plate 14. In this embodiment, the hot pressed product is a battery cell. Furthermore, an upper hot pressing block 241 is embedded in the lower surface of the upper hot pressing plate 24, and the upper driving member 25 can drive the upper hot pressing block 241 to rise and fall, and the upper hot pressing block 241 can press against the top of the hot pressing product, and the lower surface of the upper hot pressing block 241 can be flush with the lower surface of the upper hot pressing plate 24. Exemplarily, the hot pressing driving member, the lower driving member 15 and the upper driving member 25 can all be cylinders or electric cylinders; the upper heat insulation board 22 and the lower heat insulation board 12 are both made of synthetic stone, which has better insulation effect and low cost.

[0050] It should be noted that, in this embodiment, the lower hot pressing plate 14 is a rectangular structure, the width direction of the lower hot pressing plate 14 is parallel to the first horizontal direction, and the length direction of the lower hot pressing plate 14 is parallel to the second horizontal direction. In other words, the first horizontal direction is perpendicular to the second horizontal direction. The battery cell is a rectangular structure. When the battery cell is placed on the lower hot pressing plate 14, the length direction of the battery cell is parallel to the length direction of the lower hot pressing plate 14, and the width direction of the battery cell is parallel to the width direction of the lower hot pressing plate 14; the two L-shaped clamps of the manipulator are respectively clamped on both sides of the width direction of the battery cell, and the manipulator enters between the upper hot pressing plate 24 and the lower hot pressing plate 14 from one end of the width direction of the lower hot pressing plate 14, and moves along the length direction of the lower hot pressing plate 14 to deliver the battery cell to the target position.

[0051] Furthermore, the length of the lower hot pressing block 141 along the first horizontal direction is smaller than the width of the hot pressing product; along the second horizontal direction, the length of the upper hot pressing block 241 is smaller than the length of the upper hot pressing plate 24. With this arrangement, the battery cell can be supported by the lower hot pressing block 141, and the battery cell can be pressed and fixed by the upper hot pressing block 241, and space can be reserved for the robot, so that there will be no interference with the robot, and the robot is convenient to enter and exit.

[0052] Before hot pressing, the hot pressed product can be placed on the lower hot pressing block 141 and descend with the lower hot pressing block 141 so that the hot pressed product falls on the lower hot pressing plate 14; after hot pressing, the lower hot pressing block 141 can lift the hot pressed product on the lower hot pressing plate 14 to facilitate loading and unloading of the robot, and avoid scratches on the hot pressing plate, robot and hot pressed product; the upper hot pressing block 241 can abut against the top of the product to avoid displacement of the product when the lower hot pressing block 141 rises and falls, thereby ensuring the product positioning accuracy and not interfering with the robot.

[0053] Optionally, along the second horizontal direction, the length of the lower hot pressing block 141 is equal to the length of the lower hot pressing plate 14; the second horizontal direction is perpendicular to the first horizontal direction. This arrangement facilitates the connection between the lower hot pressing block 141 and the lower driving member 15, and avoids interference between the lower driving member 15 and the lower hot pressing plate 14.

[0054] Optionally, along the first horizontal direction, the length of the upper hot pressing block 241 is equal to the length of the upper hot pressing plate 24. This arrangement facilitates the connection between the upper hot pressing block 241 and the upper driving member 25, and avoids interference between the upper driving member 25 and the upper hot pressing plate 24.

[0055] Optionally, the lower hot pressing mechanism 1 further includes a lower diaphragm 16, which is tensioned and fixed on the upper surface of the lower hot pressing block 141. This arrangement allows the lower diaphragm 16 to rise with the lower hot pressing block 141 without interfering with the lower hot pressing block 141 supporting the battery cells for loading and unloading, and to descend with the lower hot pressing block 141 to be laid on the upper surface of the lower hot pressing block 141 and the lower hot pressing plate 14, which is equivalent to adding a layer of anti-sticking layer on the upper surface of the lower hot pressing block 141 and the lower hot pressing plate 14, which can prevent high temperature and high pressure from causing the diaphragm of the battery cells to stick to the lower hot pressing block 141 and the lower hot pressing plate 14, thereby damaging the battery cells.

[0056] Optionally, the upper hot pressing mechanism 2 also includes an upper diaphragm 261 and two tensioning mechanisms 262. The two tensioning mechanisms 262 are respectively fixed to the two ends of the upper hot pressing plate 24 along the second horizontal direction. The two ends of the upper diaphragm 261 are respectively connected to the two tensioning mechanisms 262. The tensioning mechanisms 262 can tension the upper diaphragm 261 and can also make the upper diaphragm 261 adhere to the lower surface of the upper hot pressing block 241 and move with the upper hot pressing block 241. It should be noted that the two ends of the upper diaphragm 261 along the second horizontal direction are respectively connected to the two tensioning mechanisms 262, and the middle part of the upper diaphragm 261 is attached to the lower surface of the upper hot pressing block 241; when the upper hot pressing block 241 descends, under the pressure of the upper hot pressing block 241, the two ends of the upper diaphragm 261 can be partially withdrawn from the tensioning mechanisms 262, so that the length of the upper diaphragm 261 located between the two tensioning mechanisms 262 becomes longer, thereby enabling the upper diaphragm 261 to descend with the upper hot pressing block 241; when the upper hot pressing block 241 rises, the two tensioning mechanisms 262 also The two ends are tightened so that the upper diaphragm 261 can rise with the upper hot pressing block 241. In other words, the upper diaphragm 261 is always in a tensioned state during the process of the upper diaphragm 261 rising and falling with the upper hot pressing block 241; when the lower surface of the upper hot pressing block 241 is flush with the lower surface of the upper hot pressing plate 24, the upper diaphragm 261 is tensioned and laid on the lower surface of the upper hot pressing block 241 and the upper hot pressing plate 24, which is equivalent to adding a layer of anti-sticking layer to the lower surface of the upper hot pressing block 241 and the upper hot pressing plate 24, which can avoid high temperature and high pressure, causing the diaphragm of the battery cell to stick to the upper hot pressing block 241 and the upper hot pressing plate 24, and damage the battery cell.

[0057] Optionally, the tensioning mechanism 262 includes a tensioning fixed seat 2621, a tensioning movable seat 2622, a tensioning roller 2623 and a tensioning elastic member 2624, the tensioning fixed seat 2621 is fixed to one end of the upper hot pressing plate 24 along the second horizontal direction, and one end of the upper diaphragm 261 is fixedly connected to the tensioning fixed seat 2621; the tensioning movable seat 2622 is slidably arranged on the tensioning fixed seat 2621 along the vertical direction; the tensioning roller 2623 is rotatably arranged on the tensioning movable seat 2622, and the upper diaphragm 261 is wrapped around the outer side of the tensioning roller 2623; one end of the tensioning elastic member 2624 is fixed to the tensioning fixed seat 2621, and the other end is connected to the tensioning movable seat 2622. By such arrangement, the force applied by the upper diaphragm 261 to the tension movable seat 2622 can be opposite to the force applied by the tension elastic member 2624 to the tension movable seat 2622, so that the tension roller 2623 can tension the upper diaphragm 261 without affecting the movement of the upper diaphragm 261 along with the upper hot pressing block 241. For example, the tension elastic member 2624 is a spring.

[0058] Optionally, the tensioning mechanism 262 further includes a guide roller 2625, which is rotatably disposed on the tensioning fixing seat 2621, and the upper diaphragm 261 is wound around the outer side of the guide roller 2625. The transmission direction of the upper diaphragm 261 can be changed by the guide roller 2625 to avoid interference between the upper diaphragm 261 and other structures.

[0059] Optionally, the lower hot pressing mechanism 1 further includes a lower gasket 17, which is fixed to the side of the lower diaphragm 16 facing the lower hot pressing plate 14. When the battery cell is hot pressed, the lower gasket 17 can be laid between the lower diaphragm 16 and the lower hot pressing block 141 and the lower hot pressing plate 14 to avoid the flatness error of the lower hot pressing block 141 and the lower hot pressing plate 14 and the gap between the lower hot pressing block 141 and the lower hot pressing plate 14, which may cause indentations during hot pressing of the battery cell; at the same time, the lower gasket 17 can also move with the lower hot pressing block 141 together with the lower diaphragm 16, and will not affect the lower hot pressing block 141 supporting the battery cell for loading and unloading.

[0060] Optionally, the upper hot pressing mechanism 2 further includes an upper gasket, which is fixed to the side of the upper diaphragm 261 facing the upper hot pressing plate 24. When the battery cell is hot pressed, the upper gasket can be laid between the upper diaphragm 261 and the upper hot pressing block 241 and the upper hot pressing plate 24 to avoid the flatness error of the upper hot pressing block 241 and the upper hot pressing plate 24 and the gap between the upper hot pressing block 241 and the upper hot pressing plate 24, which may cause indentations during hot pressing of the battery cell; at the same time, the upper gasket can also move with the upper hot pressing block 241 together with the upper diaphragm 261.

[0061] Optionally, both the lower diaphragm 16 and the upper diaphragm 261 are made of highland barley paper or DMD insulating paper, which is heat-resistant and has good anti-sticking properties.

[0062] Optionally, the lower gasket 17 and the upper gasket are both made of silicone foam. In other words, the lower gasket 17 and the upper gasket have good elasticity, heat resistance and pressure resistance, which can not only prevent the battery core from being indented, but also have a long service life.

[0063] Optionally, the lower heating element 13 includes a lower heating plate. In other words, the lower heating element 13 is a plate-like structure, and the lower heating plate is fixed between the lower insulation plate 12 and the lower hot pressing plate 14. The lower hot pressing plate 14 is heated by the lower heating plate, so that the lower hot pressing plate 14 is heated evenly, thereby ensuring that the battery cells are heated evenly and the pressing effect is better. Exemplarily, the lower heating plate is an electric heating plate, and the interior of the electric heating plate is densely covered with heating wires, which has better heating uniformity and can keep the temperature difference at different positions of the lower hot pressing plate 14 within ±3°C. Of course, in other embodiments, the lower heating element 13 can also adopt structures such as heating rods to heat the lower hot pressing plate 14.

[0064] Optionally, the upper heating element 23 includes an upper heating plate. In other words, the upper heating element 23 is a plate-like structure, and the upper heating plate is fixed between the upper insulation plate 22 and the upper hot pressing plate 24. The upper hot pressing plate 24 is heated by the upper heating plate, so that the upper hot pressing plate 24 is heated evenly, thereby ensuring that the battery cells are heated evenly and the pressing effect is better. Exemplarily, the upper heating plate is an electric heating plate, and the interior of the electric heating plate is densely covered with heating wires, which has better heating uniformity and can keep the temperature difference at different positions of the upper hot pressing plate 24 within ±3°C. Of course, in other embodiments, the upper heating element 23 can also adopt structures such as heating rods to heat the upper hot pressing plate 24.

[0065] Optionally, the lower hot pressing block 141 is slidably disposed on the lower hot pressing plate 14 in the vertical direction. By slidingly connecting the lower hot pressing block 141 with the lower hot pressing plate 14, the lower hot pressing block 141 is supported and guided, ensuring that the lower hot pressing block 141 is lifted and lowered more smoothly. In this embodiment, the lower hot pressing mechanism 1 also includes a lower sliding connection member, which is fixed to the lower fixed seat 11, and the lower hot pressing block 141 is slidably connected to the lower sliding connection member. Exemplarily, the lower sliding connection member is a slide rail.

[0066] Optionally, the upper hot pressing block 241 is slidably arranged on the upper hot pressing plate 24 in the vertical direction. By slidingly connecting the upper hot pressing block 241 with the upper hot pressing plate 24, the upper hot pressing block 241 is supported and guided, ensuring that the upper hot pressing block 241 is lifted and lowered more smoothly. In this embodiment, the upper hot pressing mechanism 2 also includes an upper sliding connection member 27, which is fixedly arranged on the upper fixed seat 21, and the upper hot pressing block 241 is slidably connected to the upper sliding connection member 27. Exemplarily, the upper sliding connection member 27 is a slide rail.

[0067] Optionally, the hot pressing device further comprises a pressing mechanism 3, which comprises a pressing piece 31 and a pressing drive assembly 32, and the pressing drive assembly 32 can drive the pressing piece 31 to move so that the pressing piece 31 can press the hot pressed product against the lower hot pressing block 141. After the manipulator places the hot pressed product on the lower hot pressing block 141, the hot pressed product can be pressed and fixed by the pressing piece 31, which can prevent the hot pressed product from shifting on the one hand, and reserve space for the manipulator on the other hand, so that the manipulator can exit easily.

[0068] Optionally, two pressing mechanisms 3 are provided, and the pressing pieces 31 of the two pressing mechanisms 3 can be pressed against the two ends of the hot pressing product respectively. Such an arrangement can further improve the positioning stability of the hot pressing product.

[0069] In this embodiment, along the second horizontal direction, the length of the lower hot pressing plate 14 is greater than the length of the upper hot pressing plate 24. Therefore, when performing the hot pressing operation, the pressing pieces 31 of the two pressing mechanisms 3 can press and fix the two ends of the lower diaphragm 16 along the second horizontal direction, and can make the pressing pieces 31 avoid the upper hot pressing plate 24.

[0070] Further, the material pressing drive assembly 32 includes a material pressing translation drive member 321 and a material pressing lifting drive member 322. The material pressing translation drive member 321 can drive the material pressing member 31 to translate, and the material pressing lifting drive member 322 can drive the material pressing member 31 to lift. Further, the material pressing drive assembly 32 also includes an adapter seat 323, which is slidably arranged on the lower fixed seat 11 along the second horizontal direction, the driving end of the material pressing translation drive member 321 is connected to the adapter seat 323, the material pressing member 31 is slidably arranged on the adapter seat 323 along the vertical direction, the material pressing lifting drive member 322 is fixed to the adapter seat 323, and the driving end of the material pressing lifting drive member 322 is connected to the material pressing member 31. Exemplarily, both the material pressing translation drive member 321 and the material pressing lifting drive member 322 can adopt a cylinder or an electric cylinder.

[0071] Optionally, the pressing piece 31 is a sheet-like structure, which is convenient for avoiding the upper hot pressing plate 24 .

[0072] Before the hot pressing device of this embodiment starts working, the upper heating plate heats the upper hot pressing plate 24 and the upper hot pressing block 241 to the process required temperature, and the lower heating plate heats the lower hot pressing plate 14 and the lower hot pressing block 141 to the process required temperature.

[0073] Exemplarily, the working process of the hot pressing device of this embodiment is:

[0074] 1) The robot delivers the battery cell to between the upper hot pressing plate 24 and the lower hot pressing plate 14, and there is a certain distance between the bottom of the battery cell and the upper surface of the lower hot pressing plate 14; illustratively, the distance between the bottom of the battery cell and the upper surface of the lower hot pressing plate 14 can be equal to the stroke of the lower driving member 15;

[0075] 2) The lower driving member 15 drives the lower hot pressing block 141 to rise, so that the lower hot pressing block 141 supports the battery cell;

[0076] 3) The pressing drive assembly 32 drives the pressing piece 31 to move so that the pressing piece 31 abuts against the top of the battery cell. In other words, the battery cell is pressed against the lower hot pressing block 141 by the pressing piece 31. It should be noted that the pressing piece 31 needs to be pressed against the main body of the battery cell, and cannot be pressed against the tab of the battery cell.

[0077] 4) The robot releases the battery cell;

[0078] 5) The lower driving member 15 drives the lower hot pressing block 141 to descend, and the material pressing driving assembly 32 drives the material pressing member 31 to descend synchronously with the lower hot pressing block 141, thereby driving the battery cell to descend, so that the robot arm exits the avoidance position;

[0079] 6) The robot exits;

[0080] 7) The upper driving member 25 drives the upper hot pressing block 241 to descend, so that the upper hot pressing block 241 abuts against the top of the battery cell;

[0081] 8) The pressing drive assembly 32 drives the pressing piece 31 to leave the battery cell and reset;

[0082] 9) The hot pressing driving member drives the upper fixing seat 21 to descend until the upper hot pressing plate 24 abuts against the top of the battery cell;

[0083] 10) Performing a pressurization and pressure-maintaining operation to perform hot-pressing compounding on the battery cell;

[0084] 11) After the hot pressing is completed, the hot pressing driving member drives the upper fixing seat 21 to rise and reset. During this process, the upper hot pressing block 241 still abuts against the top of the battery cell;

[0085] 12) The pressing driving assembly 32 drives the pressing piece 31 to move and makes the pressing piece 31 abut against the top of the battery cell;

[0086] 13) The upper driving member 25 drives the upper hot pressing block 241 to rise and be embedded in the upper hot pressing plate 24;

[0087] 14) The robot enters between the upper hot pressing plate 24 and the lower hot pressing plate 14;

[0088] 15) The lower driving member 15 drives the lower hot pressing block 141 to rise, and the pressing driving assembly 32 drives the pressing member 31 to rise synchronously with the lower hot pressing block 141, thereby driving the battery cell to rise;

[0089] 16) The manipulator clamps the battery cell;

[0090] 17) The lower driving member 15 drives the lower hot pressing block 141 to descend and reset, and the material pressing driving assembly 32 drives the material pressing member 31 to descend and reset;

[0091] 18) The robot unloads the battery cells.

[0092] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A hot pressing device, characterized in that: include: A lower hot pressing mechanism (1), the lower hot pressing mechanism (1) comprising a lower hot pressing plate (14) and a lower driving member (15), a lower hot pressing block (141) being embedded in the upper surface of the lower hot pressing plate (14), the lower driving member (15) being capable of driving the lower hot pressing block (141) to rise and fall, a hot pressing product being capable of being placed on the lower hot pressing block (141) and rising and falling with the lower hot pressing block (141), the upper surface of the lower hot pressing block (141) being capable of being flush with the upper surface of the lower hot pressing plate (14); the length of the lower hot pressing block (141) along the first horizontal direction being less than the width of the hot pressing product; An upper hot pressing mechanism (2), the upper hot pressing mechanism (2) comprising an upper hot pressing plate (24) and an upper driving member (25), the upper hot pressing plate (24) being movably arranged directly above the lower hot pressing plate (14), an upper hot pressing block (241) being embedded in the lower surface of the upper hot pressing plate (24), the upper driving member (25) being capable of driving the upper hot pressing block (241) to move up and down, the upper hot pressing block (241) being capable of pressing against the top of the hot pressing product, the lower surface of the upper hot pressing block (241) being capable of being flush with the lower surface of the upper hot pressing plate (24); along the second horizontal direction, the length of the upper hot pressing block (241) is less than the length of the upper hot pressing plate (24); the second horizontal direction is perpendicular to the first horizontal direction.

2. The hot pressing device according to claim 1, characterized in that: Along the second horizontal direction, the length of the lower hot pressing block (141) is equal to the length of the lower hot pressing plate (14); Along the first horizontal direction, the length of the upper hot pressing block (241) is equal to the length of the upper hot pressing plate (24).

3. The hot pressing device according to claim 1, characterized in that: The lower hot pressing mechanism (1) further comprises a lower diaphragm (16), wherein the lower diaphragm (16) is tensioned and fixedly arranged on the upper surface of the lower hot pressing block (141); The upper hot pressing mechanism (2) also includes an upper diaphragm (261) and two tensioning mechanisms (262). The two tensioning mechanisms (262) are respectively fixed to the two ends of the upper hot pressing plate (24) along the second horizontal direction. The two ends of the upper diaphragm (261) are respectively connected to the two tensioning mechanisms (262). The tensioning mechanism (262) can tension the upper diaphragm (261) and can also make the upper diaphragm (261) adhere to the lower surface of the upper hot pressing block (241) and move with the upper hot pressing block (241).

4. The hot pressing device according to claim 3, characterized in that: The tensioning mechanism (262) comprises: A tensioning fixing seat (2621), wherein the tensioning fixing seat (2621) is fixedly arranged at one end of the upper hot pressing plate (24) along the second horizontal direction, and one end of the upper diaphragm (261) is fixedly connected to the tensioning fixing seat (2621); A tensioning movable seat (2622), wherein the tensioning movable seat (2622) is slidably disposed on the tensioning fixed seat (2621) along a vertical direction; A tensioning roller (2623), wherein the tensioning roller (2623) is rotatably disposed on the tensioning movable seat (2622), and the upper diaphragm (261) is wound around the outer side of the tensioning roller (2623); A tensioning elastic member (2624), one end of which is fixed to the tensioning fixed seat (2621), and the other end of which is connected to the tensioning movable seat (2622).

5. The hot pressing device according to claim 4, characterized in that: The tensioning mechanism (262) further comprises a guide roller (2625), wherein the guide roller (2625) is rotatably disposed on the tensioning fixed seat (2621), and the upper diaphragm (261) is wound around the outer side of the guide roller (2625).

6. The hot pressing device according to claim 3, characterized in that: The lower hot pressing mechanism (1) further comprises a lower gasket (17), wherein the lower gasket (17) is fixedly arranged on a side of the lower diaphragm (16) facing the lower hot pressing plate (14); The upper hot pressing mechanism (2) further comprises an upper gasket, which is fixedly arranged on a side of the upper diaphragm (261) facing the upper hot pressing plate (24).

7. The hot pressing device according to claim 6, characterized in that: The lower diaphragm (16) is highland barley paper or DMD insulating paper; and / or, The upper diaphragm (261) is highland barley paper or DMD insulating paper; and / or, The lower gasket (17) is made of silicone foam; and / or, The upper gasket is made of silicone foam.

8. The hot pressing device according to claim 1, characterized in that: The lower hot pressing mechanism (1) further comprises a lower heating element (13), wherein the lower heating element (13) is used to heat the lower hot pressing plate (14), and the lower heating element (13) comprises a lower heating plate; and / or, The upper hot pressing mechanism (2) further comprises an upper heating element (23), wherein the upper heating element (23) is used to heat the upper hot pressing plate (24), and the upper heating element (23) comprises an upper heating plate.

9. The hot pressing device according to claim 1, characterized in that: The lower hot pressing block (141) is slidably arranged on the lower hot pressing plate (14) along the vertical direction; The upper hot pressing block (241) is slidably arranged on the upper hot pressing plate (24) along a vertical direction.

10. The hot pressing device according to claim 1, characterized in that: The hot pressing device also includes a pressing mechanism (3), wherein the pressing mechanism (3) includes a pressing piece (31) and a pressing drive assembly (32), wherein the pressing drive assembly (32) is capable of driving the pressing piece (31) to move so that the pressing piece (31) can press the hot pressed product against the lower hot pressing block (141).

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