Split hot press

Abstract

The application discloses a split hot press plate and belongs to the technical field of mechanical pressing, comprising a bottom plate, a placing plate fixedly installed on the upper surface of the bottom plate, a protection plate fixedly installed on the upper surface of the placing plate and a driving assembly arranged on the side wall of the bottom plate. In the application, the driving assembly and the insulation paper are arranged. The movable hot press plate and the paper pressing plate are synchronously moved upward during the movement of the fixing block. At this time, the movable hot press plate is moved upward under the limiting of the guide block through the guide groove. The hot press plate is driven by the air cylinder, automatic operation of the hot press plate is realized, and the insulation paper is used for preventing adhesion. Compared with the traditional mode, on the one hand, the hot press plate has a simple structure and low processing cost, the cost is reduced, the battery cell can be prevented from being damaged, on the other hand, compared with the anti-adhesion coating, replacement is more convenient, the difficulty of later maintenance is reduced, and the adhesion condition does not occur with the increase of the use time, and the anti-adhesion effect of the hot press plate is further improved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical pressurization technology, and particularly relates to a split-type hot press plate. Background Technology

[0002] The hot press plate is a mechanism used in heating devices. Its main functions are to support, bear pressure, and transfer heat. Currently, most pressurizing devices use a single metal plate underneath. The battery cell to be pressurized is placed on the metal plate and then pressurized. After pressurization, the battery cell needs to be scooped off the metal plate. However, the scooping tool is required to be very thin, and even so, there is still a risk of damaging the battery cell.

[0003] However, some pressurizing devices, to avoid damaging the battery cells, place the battery cells in a clamp for transfer before pressurizing, then pressurize the battery cells together with the clamps, and finally remove the battery cells from the clamps after pressurization.

[0004] While this method avoids damaging the battery cells, it increases the cost and complexity of the equipment. Some pressurizing equipment also applies an anti-stick coating to the upper surface of the placement plate to achieve the same effect. However, this method not only increases the manufacturing cost of the pressurizing equipment, but also makes it difficult or impossible to repair the coating if it is damaged or scratched. Furthermore, the coating may peel off after prolonged use, increasing maintenance costs and difficulty. In addition, the phenomenon of material sticking still exists after prolonged use. Therefore, a split-type hot press plate is provided. Summary of the Invention

[0005] The purpose of this invention is to provide a split-type hot press plate in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a split hot press plate, including a base plate, a placement plate fixedly installed on the upper surface of the base plate, a protective plate fixedly installed on the upper surface of the placement plate, and a driving assembly provided on the side wall of the base plate;

[0007] The drive assembly includes positioning blocks. Positioning blocks are fixedly installed on both sides of the base plate. An mounting plate is fixedly installed on the upper surface of the positioning blocks, and a cylinder is fixedly installed on the lower surface of the mounting plate.

[0008] As a further description of the above technical solution:

[0009] An air inlet is connected to the side wall of the cylinder, and a pneumatic rod is fixedly installed at the output end of the cylinder. One end of the pneumatic rod extends to the outer surface of the mounting plate, and a fixing block is fixedly installed at one end of the pneumatic rod. The drive assembly is mainly used to drive the movable hot press plate to lift and lower, and the base plate is used to fix the structure of each part.

[0010] As a further description of the above technical solution:

[0011] Bolts are slidably installed on the inner wall of the fixing block, with one end of the bolts extending to the outside of the upper surface of the fixing block. A fixing plate is fixedly installed on the upper surface of the placement plate, with one end of the fixing plate extending to the outside of the side wall of the protective plate. A connecting block is fixedly installed on the upper surface of the fixing plate, with the upper surface of the connecting block contacting the lower surface of the fixing block.

[0012] As a further description of the above technical solution:

[0013] Two fixed hot press plates are fixedly installed on the upper surface of the fixed plate. A movable hot press plate is slidably installed between the fixed hot press plates. The side wall of the movable hot press plate is fixedly connected to the side wall of the fixed block. Guide grooves are provided on both side walls of the movable hot press plate. Guide blocks are slidably installed on the inner wall of the guide grooves. One end of the guide block is fixedly connected to the upper surface of the fixed plate.

[0014] As a further description of the above technical solution:

[0015] A baffle is fixedly installed on the side wall of the fixed hot press plate. The lower surface of the baffle is fixedly connected to the upper surface of the placement plate. A pressure plate is movably installed on the inner wall of the fixed block by bolts. The lower surface of the pressure plate is in close contact with the upper surface of the movable hot press plate.

[0016] As a further description of the above technical solution:

[0017] Insulating paper is placed on the upper surface of both the fixed hot press plate and the movable hot press plate. Counterweights are fixedly installed at both ends of the insulating paper. The insulating paper is located between the lower surface of the pressing plate and the upper surface of the fixed hot press plate and the movable hot press plate.

[0018] As a further description of the above technical solution:

[0019] The upper surface of the insulating paper is equipped with an electric cell. Temperature sensors and heating rods are fixedly installed on the inner walls of both the fixed and movable hot press plates. One end of each temperature sensor and heating rod extends to the outside of the side wall of the fixed and movable hot press plates.

[0020] As a further description of the above technical solution:

[0021] The insulating paper is made of a soft composite material of polyester film and polyester fiber nonwoven fabric, which is wear-resistant and non-stick. The counterweight blocks fix and flatten the insulating paper, and the guide blocks limit the movement of the movable hot platen.

[0022] As a further description of the above technical solution:

[0023] The protective plate and baffle wrap around the fixed hot press plate and the movable hot press plate to prevent burns and to provide heat insulation. The pressing plate presses down on the insulating paper to fix and flatten it.

[0024] As a further description of the above technical solution:

[0025] The temperature sensor is used to detect the temperature inside the fixed hot press plate and the movable hot press plate in real time, and the heating rod is used to heat the fixed hot press plate and the movable hot press plate to keep them at a constant temperature.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In this invention, a driving component and insulating paper are provided. The battery cell is pressurized by a pressurizing device. After pressurization, the battery cell adheres to the upper surface of the insulating paper. Air is injected into the cylinder through the air inlet. At this time, the cylinder rod is pushed by the gas, which drives the fixed block to move upward. During the upward movement of the fixed block, the movable hot press plate and the pressing plate move upward synchronously. At this time, the movable hot press plate moves upward under the limit of the guide block through the guide groove. Since the insulating paper is made of anti-stick material, the lower surface of the battery cell will gradually separate from the upper surface of the insulating paper as the movable hot press plate moves upward, so as to facilitate the removal of the pressurized battery cell. The cylinder is used to drive the hot press plate to realize the automated operation. At the same time, the use of insulating paper for anti-adhesion is more convenient than the traditional method. On the one hand, the structure of the hot press plate is simple and the processing cost is low. While reducing costs, it can also prevent the battery cell from being damaged. On the other hand, compared with the anti-stick coating, it is easier to replace, reducing the difficulty of later maintenance. Moreover, it will not stick over time, further improving the anti-adhesion effect of the hot press plate.

[0028] 2. In this invention, by setting a pressure plate and counterweights, the fixed hot press plate and the movable hot press plate are placed on the same plane. Then, the insulating paper is laid flat on the upper surface of the fixed hot press plate and the movable hot press plate. Counterweights of the same weight are installed at both ends of the insulating paper. At this time, under the action of the counterweights, the insulating paper will be laid flat on the upper surface of the fixed hot press plate and the movable hot press plate. After loosening the bolts of the fixed pressure plate, the contact area between the pressure plate and the fixed hot press plate and the movable hot press plate is adjusted according to the size of the battery cell. Then, the pressure plate is fixed to the fixed block by tightening the bolts. Then, the battery cell is placed on the upper surface of the insulating paper. The pressure plate can fix the insulating paper while keeping it flat. Under the dual action of the counterweights, the stability of the insulating paper is further improved. Moreover, the pressure plate can be adjusted according to the size of the battery cell. For small battery cells, the pressure plate can fix the insulating paper over a larger area, further improving the working stability of the hot press plate.

[0029] 3. In this invention, a protective plate and a baffle are provided. A heating rod heats the fixed hot pressing plate and the movable hot pressing plate. During the heating process, a temperature sensor monitors the temperature of the fixed and movable hot pressing plates in real time. During the operation of the hot pressing plates, the protective plate and the baffle block the sides of the fixed hot pressing plate to prevent operators from being burned during the cell processing. They also keep the fixed hot pressing plate warm. When the movable hot pressing plate is in the closed position, the cell is completely pressed against the upper surfaces of the fixed and movable hot pressing plates, making it difficult to grasp the cell. When the movable hot pressing plate is in the open position, gaps are left on both sides of the cell, making it easier to grasp the cell. This ensures that the temperature and pressure of the cell remain consistent throughout the hot pressing process. Furthermore, the separate design facilitates the handling of the cell during loading and unloading, eliminating the need for additional clamps for transferring the cell and simplifying the operation. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a split-type hot press plate.

[0031] Figure 2 This is an enlarged structural diagram of point A in a split-type hot press plate.

[0032] Figure 3 This is a three-dimensional structural diagram of a split-type hot press plate from another angle.

[0033] Figure 4 This is an enlarged structural diagram of point B in a split-type hot press plate.

[0034] Figure 5 This is a three-dimensional structural diagram of a split-type hot press plate consisting of a fixed plate, a fixed hot press plate, and a movable hot press plate.

[0035] Figure 6 This is a three-dimensional structural diagram of insulating paper and counterweight in a split-type hot press plate.

[0036] Figure 7 This is a front view of a split-type hot press plate in its closed state.

[0037] Figure 8 This is a front view of a split-type hot press plate in its open state.

[0038] Figure 9 This is a three-dimensional structural diagram of a hot press machine suitable for a split-type hot press plate.

[0039] Legend:

[0040] 1. Base plate; 2. Placement plate; 3. Protective plate; 4. Baffle; 5. Fixing block; 6. Pressing plate; 7. Insulating paper; 8. Battery cell; 9. Drive assembly; 91. Positioning block; 92. Mounting plate; 93. Cylinder; 94. Air inlet; 95. Air rod; 10. Fixing plate; 11. Connecting block; 12. Temperature sensor; 13. Heating rod; 14. Guide block; 15. Fixed hot press plate; 16. Movable hot press plate; 17. Guide groove; 18. Counterweight block. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figure 1-9 The present invention provides a technical solution: a split hot press plate, including a base plate 1, a placement plate 2 fixedly installed on the upper surface of the base plate 1, a protective plate 3 fixedly installed on the upper surface of the placement plate 2, and a driving assembly 9 provided on the side wall of the base plate 1.

[0043] The drive assembly 9 includes positioning blocks 91. Positioning blocks 91 are fixedly installed on both side walls of the base plate 1. An mounting plate 92 is fixedly installed on the upper surface of the positioning blocks 91. A cylinder 93 is fixedly installed on the lower surface of the mounting plate 92. An air inlet 94 is connected to the side wall of the cylinder 93. A pneumatic rod 95 is fixedly installed at the output end of the cylinder 93. One end of the pneumatic rod 95 extends beyond the upper surface of the mounting plate 92. A fixing block 5 is fixedly installed at one end of the pneumatic rod 95. A bolt is slidably installed on the inner wall of the fixing block 5, with one end extending beyond the upper surface of the fixing block 5. A fixing block 5 is fixedly installed on the upper surface of the placement plate 2. Plate 10, one end of which extends to the side wall of protective plate 3, a connecting block 11 is fixedly installed on the upper surface of the fixed plate 10, the upper surface of the connecting block 11 is in contact with the lower surface of the fixed block 5, two fixed hot press plates 15 are fixedly installed on the upper surface of the fixed plate 10, a movable hot press plate 16 is slidably installed between the fixed hot press plates 15, the side wall of the movable hot press plate 16 is fixedly connected to the side wall of the fixed block 5, guide grooves 17 are provided on both side walls of the movable hot press plate 16, guide blocks 14 are slidably installed on the inner wall of the guide grooves 17, one end of the guide block 14 is fixedly connected to the upper surface of the fixed plate 10.

[0044] The specific implementation is as follows: the battery cell 8 is pressurized by the pressurizing device. After the battery cell 8 is pressurized, it will stick to the upper surface of the insulating paper 7. Air is injected into the cylinder 93 through the air inlet 94. At this time, the air rod 95 is pushed by the gas and will drive the fixed block 5 to move upward. During the upward movement of the fixed block 5, the movable hot press plate 16 and the pressing plate 6 will move upward synchronously. At this time, the movable hot press plate 16 moves upward under the limit of the guide block 14 through the guide groove 17. Since the insulating paper 7 is made of non-stick material, as the movable hot press plate 16 moves upward, the lower surface of the battery cell will gradually separate from the upper surface of the insulating paper 7, so as to facilitate the removal of the pressurized battery cell 8. The split hot press plate is suitable for the battery cell hot press device. The split hot press plate is provided with drive components 9 on both the left and right sides.

[0045] A baffle 4 is fixedly installed on the side wall of the fixed hot press plate 15. The lower surface of the baffle 4 is fixedly connected to the upper surface of the placement plate 2. A pressing plate 6 is movably installed on the inner wall of the fixed block 5 by bolts. The lower surface of the pressing plate 6 is in close contact with the upper surface of the movable hot press plate 16. Insulating paper 7 is placed on the upper surfaces of both the fixed hot press plate 15 and the movable hot press plate 16. Counterweights 18 are fixedly installed at both ends of the insulating paper 7. The insulating paper 7 is located between the lower surface of the pressing plate 6 and the upper surfaces of the fixed hot press plate 15 and the movable hot press plate 16.

[0046] The specific implementation is as follows: The fixed hot press plate 15 and the movable hot press plate 16 are placed on the same plane. Then, the insulating paper 7 is laid flat on the upper surface of the fixed hot press plate 15 and the movable hot press plate 16. Counterweights 18 of the same weight are installed at both ends of the insulating paper 7. At this time, under the action of the counterweights 18, the insulating paper 7 will be laid flat on the upper surface of the fixed hot press plate 15 and the movable hot press plate 16. After loosening the bolts of the fixed pressing plate 6, the contact area between the pressing plate 6 and the fixed hot press plate 15 and the movable hot press plate 16 is adjusted according to the size of the battery cell 8. Then, the pressing plate 6 is fixed to the fixed block 5 by tightening the bolts. Then, the battery cell 8 is placed on the upper surface of the insulating paper 7. At this time, the pressing plate 6 and the battery cell 8 will not come into contact. The split hot press plate is used in the battery cell hot pressing device. The battery cell hot pressing device adopts a multi-layer design, and at least one split hot press plate is installed in each layer. According to the needs of the battery cell hot pressing device, multiple split hot press plates can be installed in one layer for use.

[0047] A battery cell 8 is placed on the upper surface of the insulating paper 7. Temperature sensors 12 and heating rods 13 are fixedly installed on the inner walls of both the fixed hot press plate 15 and the movable hot press plate 16. One end of each temperature sensor 12 and heating rod 13 extends to the side wall of the fixed hot press plate 15 and the movable hot press plate 16. The insulating paper 7 is made of a soft composite material of polyester film and polyester fiber nonwoven fabric, which is wear-resistant and non-stick. The counterweight 18 fixes and flattens the insulating paper 7. The guide block 14 guides the movable hot press plate 16. The 6 acts as a limit, the protective plate 3 and the baffle 4 wrap the fixed hot press plate 15 and the movable hot press plate 16 to prevent burns and to keep the heat insulated. The pressing plate 6 presses the insulating paper 7 to fix and flatten it. The temperature sensor 12 is used to detect the temperature inside the fixed hot press plate 15 and the movable hot press plate 16 in real time. The heating rod 13 is used to heat the fixed hot press plate 15 and the movable hot press plate 16 to keep them at a constant temperature.

[0048] The specific implementation is as follows: The fixed hot press plate 15 and the movable hot press plate 16 are heated by the heating rod 13. During the heating process, the temperature sensor 12 will detect the temperature of the fixed hot press plate 15 and the movable hot press plate 16 in real time. During the operation of the hot press plate, the protective plate 3 and the baffle 4 will block the side of the fixed hot press plate 15 to prevent the operator from being burned during the processing of the battery cell 8. At the same time, it can also keep the fixed hot press plate 15 warm. When the movable hot press plate 16 is in the closed position, the battery cell is completely pressed against the upper surface of the fixed hot press plate 15 and the movable hot press plate 16, making it difficult to grasp the battery cell. When the movable hot press plate 16 is in the open position, there will be gaps on both sides of the battery cell 8, which makes it easier to grasp the battery cell.

[0049] Working principle: The fixed hot press plate 15 and the movable hot press plate 16 are placed on the same plane. Insulating paper 7 is then laid flat on the upper surfaces of the fixed and movable hot press plates 15 and 16. Counterweights 18 of equal weight are installed at both ends of the insulating paper 7. Under the action of the counterweights 18, the insulating paper 7 will be laid flat on the upper surfaces of the fixed and movable hot press plates 15 and 16. After loosening the bolts of the fixed pressing plate 6, the connection between the pressing plate 6 and the fixed and movable hot press plates 15 and 16 is adjusted according to the size of the battery cell 8. The contact area is adjusted, and then the pressing plate 6 is fixed to the fixing block 5 by tightening the bolts. Then, the battery cell 8 is placed on the upper surface of the insulating paper 7. The fixed hot pressing plate 15 and the movable hot pressing plate 16 are heated by the heating rod 13. During the heating process, the temperature sensor 12 will detect the temperature of the fixed hot pressing plate 15 and the movable hot pressing plate 16 in real time. When the temperature of the fixed hot pressing plate 15 and the movable hot pressing plate 16 reaches the required level, the battery cell 8 is pressurized by the pressurizing device. After the battery cell 8 is pressurized, it will be placed on the insulating paper 7. Air is injected into cylinder 93 through air inlet 94 onto the upper surface of paper 7. At this time, the air rod 95 is pushed by the air, which drives the fixed block 5 to move upward. During the upward movement of the fixed block 5, the movable hot press plate 16 and the pressure plate 6 move upward synchronously. At this time, the movable hot press plate 16 moves upward under the limit of guide block 14 through guide groove 17. Since the insulating paper 7 is made of non-stick material, as the movable hot press plate 16 moves upward, the lower surface of the battery cell will gradually separate from the upper surface of the insulating paper 7, thereby making it easier to remove the pressurized battery cell 8. During the operation of the hot press plate, the protective plate 3 and the baffle 4 will block the sides of the fixed hot press plate 15 to prevent the operator from being burned during the processing of the battery cell 8. At the same time, they can also keep the fixed hot press plate 15 warm. When the movable hot press plate 16 is in the closed position, the battery cell is completely pressed against the upper surface of the fixed hot press plate 15 and the movable hot press plate 16, making it difficult to grab the battery cell. When the movable hot press plate 16 is in the open position, there will be gaps on both sides of the battery cell 8, which makes it easier to grab the battery cell.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A split-type hot press plate, comprising a base plate (1), wherein a placement plate (2) is fixedly mounted on the upper surface of the base plate (1), and a protective plate (3) is fixedly mounted on the upper surface of the placement plate (2), characterized in that: A drive assembly (9) is provided on the side wall of the base plate (1). The drive assembly (9) includes a positioning block (91). Positioning blocks (91) are fixedly installed on both sides of the base plate (1). An mounting plate (92) is fixedly installed on the upper surface of the positioning block (91). A cylinder (93) is fixedly installed on the lower surface of the mounting plate (92). An air inlet (94) is connected to the side wall of the cylinder (93). A rod (95) is fixedly installed at the output end of the cylinder (93). One end of the rod (95) extends beyond the upper surface of the mounting plate (92). A fixing block (5) is fixedly installed at one end of the rod (95). A bolt is slidably installed on the inner wall of the fixing block (5), with one end extending beyond the upper surface of the fixing block (5). The placement plate (2) A fixed plate (10) is fixedly installed on the upper surface of the fixed block (5). Two fixed hot press plates (15) are fixedly installed on the upper surface of the fixed plate (10). A movable hot press plate (16) is slidably installed between the fixed hot press plates (15). A pressure plate (6) is movably installed on the inner wall of the fixed block (5) by bolts. The lower surface of the pressure plate (6) is in close contact with the upper surface of the movable hot press plate (16). Insulating paper (7) is placed on the upper surfaces of both the fixed hot press plate (15) and the movable hot press plate (16). A counterweight (18) is fixedly installed at both ends of the insulating paper (7). The insulating paper (7) is located between the lower surface of the pressure plate (6) and the upper surfaces of the fixed hot press plate (15) and the movable hot press plate (16).

2. A split-type hot press plate according to claim 1, characterized in that, One end of the fixing plate (10) extends to the outside of the side wall of the protective plate (3), and a connecting block (11) is fixedly installed on the upper surface of the fixing plate (10). The upper surface of the connecting block (11) is in contact with the lower surface of the fixing block (5).

3. A split-type hot press plate according to claim 2, characterized in that, The side wall of the movable hot press plate (16) is fixedly connected to the side wall of the fixed block (5). Guide grooves (17) are provided on both sides of the movable hot press plate (16). Guide blocks (14) are slidably installed on the inner wall of the guide grooves (17). One end of the guide block (14) is fixedly connected to the upper surface of the fixed plate (10).

4. A split-type hot press plate according to claim 3, characterized in that, A baffle (4) is fixedly installed on the side wall of the fixed hot press plate (15), and the lower surface of the baffle (4) is fixedly connected to the upper surface of the placement plate (2).

5. A split-type hot press plate according to claim 4, characterized in that, The upper surface of the insulating paper (7) is provided with an electric cell (8). Temperature sensors (12) and heating rods (13) are fixedly installed on the inner walls of the fixed hot plate (15) and the movable hot plate (16). One end of the temperature sensor (12) and the heating rod (13) extends to the outside of the side wall of the fixed hot plate (15) and the movable hot plate (16).

6. A split-type hot press plate according to claim 5, characterized in that, The insulating paper (7) is made of polyester film, polyester fiber, nonwoven soft composite material, which is wear-resistant and non-stick. The counterweight (18) fixes and flattens the insulating paper (7), and the guide block (14) limits the movement of the movable hot plate (16).

7. A split-type hot press plate according to claim 6, characterized in that, The protective plate (3) and the baffle (4) wrap the fixed hot press plate (15) and the movable hot press plate (16) to prevent burns and provide heat insulation. The pressing plate (6) presses the insulating paper (7) to fix and flatten it.

8. A split-type hot press plate according to claim 7, characterized in that, The temperature sensor (12) is used to detect the temperature inside the fixed hot press plate (15) and the movable hot press plate (16) in real time. The heating rod (13) is used to heat the fixed hot press plate (15) and the movable hot press plate (16) so that the fixed hot press plate (15) and the movable hot press plate (16) are in a constant temperature state.

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