Fiber reinforced thermoplastic composite heating and molding integrated device for power battery housing

Abstract

The utility model provides a fibre reinforced thermoplastic composite heating mould pressing integrated device for power battery shell, and it is energy -conserving and efficiency -increasing, and the fibre reinforced thermoplastic composite is wrinkle-free, folding, deformation to the plate, and improves the plate quality after hot pressing. It includes the baking machine, hot press, track, clamping device, and the baking machine has the door type frame, upper heating plate, lower heating plate, and the hot press has the door type frame, upper hot pressing plate, lower hot pressing plate, and the track passes through from the door type frame, door type frame. The clamping device that moves on the track includes the lower frame formed by four lower edge frames, is provided with a clamping device on each lower edge frame, and the clamping device includes fixed clamp plate, movable clamp plate, hinged block, guide rod, return spring. The fixed clamp plate and movable clamp plate form the jaw opposite, and the clamping elastic element makes the jaw close in normal state. The inner side end of guide rod is fixedly connected with fixed clamp plate, and guide rod is slidably arranged on lower edge frame, and return spring makes fixed clamp plate be located at the position close to the inner side of lower edge frame.

Description

Technical Field

[0001] This utility model belongs to the field of heating and molding technology of fiber-reinforced thermoplastic composite materials (composite materials) and other sheet materials. Specifically, it is an integrated heating and molding device for large-format fiber-reinforced thermoplastic composite materials used in power battery casings. Background Technology

[0002] In production, some sheets, such as fiber-reinforced thermoplastic composites (composite materials), need to be heated and baked on both the top and bottom surfaces before being sent to a hot press for hot pressing. For the heating and molding of conventional small-format fiber-reinforced thermoplastic composite sheets such as 0.5m*0.5m sheets, the sheet is usually manually clamped with pliers and placed on the baking rack of the baking machine for heating. After heating, the sheet is then manually clamped and placed into the hot press for pressing. For large-format fiber-reinforced thermoplastic composites with large areas, such as 1.5m*2.5m fiber-reinforced thermoplastic composites (sheets) used in the production of power battery casings, conventional production methods face two major challenges. First, the sheets are large in area and heavy in weight, making manual handling virtually impossible. Moreover, the heated sheets soften and exhibit significant wrinkles, folds, and deformations, making manual transfer nearly impossible. Even if they can be placed in a hot press, irregular textures appear on the surface, reducing quality. Second, the operation is difficult and inefficient. The sheets are hard to feed into the baking machine, and handling and transferring the heated sheets is even more inconvenient, preventing timely placement into the hot press. Therefore, the baking machine needs to heat the sheets at higher temperatures and for longer periods to ensure the sheets are heated to the correct temperature before being placed into the hot press, thus avoiding energy waste. Summary of the Invention

[0003] To address the aforementioned shortcomings, this utility model proposes an integrated heating and molding device for fiber-reinforced thermoplastic composites used in power battery casings. It boasts high operational efficiency, enabling rapid feeding of fiber-reinforced thermoplastic composite sheets into a baking machine for heating and baking, and timely transfer of the baked sheets to a hot press, thus saving energy and increasing efficiency. Simultaneously, the sheets are flat, free from wrinkles, folds, and deformation, improving the quality of the hot-pressed sheets. It also allows for rapid transfer of the sheets, making it particularly suitable for large-format fiber-reinforced thermoplastic composites.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An integrated heating and molding device for fiber-reinforced thermoplastic composites used in power battery casings includes a baking machine, a hot press, a track, and a clamping device. The baking machine has a gantry frame, an upper heating plate, and a lower heating plate, while the hot press has a gantry frame, an upper hot press plate, and a lower hot press plate. The baking machine and the hot press are arranged longitudinally back and forth, and two parallel longitudinally extending tracks pass through the gantry frame and the gantry frame; the tracks have clamping devices for clamping or releasing the fiber-reinforced thermoplastic composite as a sheet material and can move back and forth along the tracks. The clamping device is a rectangular structure surrounding the sheet metal, including a frame and clamping mechanisms. The frame includes a lower frame, which is rectangular and includes four bottom borders; Each lower frame is equipped with a clamping device, which includes a fixed clamping plate, a movable clamping plate, a hinge block, a guide rod, and a return spring. The fixed clamping plate, movable clamping plate, and hinge block are all located on the inner side of the lower frame near the center of the lower frame. The hinge block is fixed to the fixed clamping plate, and the movable clamping plate is rotatably connected to the hinge block via a pin. The inner ends of the fixed clamping plate and the movable clamping plate near the center of the lower frame are positioned opposite each other to form jaws. The hinge block is located on the outer side of the jaws. A clamping elastic element is provided between the movable clamping plate and the fixed clamping plate. In its normal state, the clamping elastic element causes the movable clamping plate to rotate around the pin to the closed jaw state. When the movable clamping plate is rotated by an external force to overcome the force of the clamping elastic element, the jaws open. The inner end of the guide rod is fixedly connected to the fixed clamping plate. The guide rod is slidably disposed on the lower frame in a direction perpendicular to the lower frame. The return spring is disposed between the lower frame and the fixed clamping plate or the hinge block. In its normal state, the return spring causes the fixed clamping plate to be located near the inner side of the lower frame.

[0005] A method for heating and molding large-format sheet materials (fiber-reinforced thermoplastic composites) using an integrated heating and molding device for fiber-reinforced thermoplastic composites used in power battery casings, comprising the following steps: a. The clamping device moves on the track to the loading station in front of the baking machine and clamps the four sides of the board through the jaws of the four clamping devices. b. The clamping device moves backward on the track until the board is between the upper heating plate and the lower heating plate, which are opposite each other, and then stops moving. The upper heating plate and the lower heating plate bake the board. c. The clamping device moves backward on the track until the baked board is located between the upper and lower hot press plates, and then stops moving at the hot press station. The moving clamp plate swings around the pin shaft to overcome the elastic force of the clamping elastic element. The jaws on all four sides of the clamping plate open, and the plate falls onto the lower hot press plate. Under the action of the return spring, the four clamping devices move outward away from the center of the lower frame. The clamping devices do not hinder the up and down movement of the upper hot press plate. d. The clamping device moves forward on the track away from the hot pressing station. The upper and lower hot pressing plates of the hot press move towards each other and come into contact with each other to hot press the plate. After hot pressing is completed, the upper and lower hot pressing plates move away from each other and the hot-pressed plate is taken out.

[0006] The above-mentioned large-format sheet heating and molding method involves performing steps a and b sequentially while hot-pressing the previous sheet, clamping the four edges of the new sheet with jaws, and moving the clamping device to the baking station to bake the new sheet.

[0007] The aforementioned integrated heating and molding device for fiber-reinforced thermoplastic composites used in power battery casings The clamping device also includes an operating device; The frame also includes an upper frame, which is fixedly connected to the lower frame. The upper frame is located above the lower frame. The upper frame is rectangular and includes four upper borders. An operating device is provided on each upper frame. The operating device includes a push plate and a lifting device. The operating device includes a translation plate, a translation drive device, a slide rail, and a telescopic device. The translation plate is located on the inner side of the upper frame near the center of the upper frame. The translation plate is slidably mounted on the upper frame in a direction perpendicular to the upper frame via the slide rail. The translation drive device is located between the upper frame and the translation plate to drive the translation plate to move in a direction perpendicular to the upper frame. The telescopic device is fixed on the translation plate and has a telescopic rod that can extend and retract vertically. The lower end of the telescopic rod is opposite to the upper outer part of the movable clamping plate away from the center of the lower frame. When the telescopic device drives the telescopic rod to extend downward and contact the movable clamping plate, it continues to extend. The telescopic rod drives the movable clamping plate to swing around the pin shaft to overcome the elastic force of the clamping elastic element, and the jaws open.

[0008] In step c of the large-format sheet heating and molding method, the specific method of "the moving clamp plate swinging around the pin shaft to overcome the elastic force of the clamping elastic element" is as follows: each telescopic device is activated, the telescopic rod extends downward, and the telescopic rod drives the moving clamp plate to swing around the pin shaft to overcome the elastic force of the clamping elastic element.

[0009] The aforementioned integrated heating and molding device for fiber-reinforced thermoplastic composites used for power battery casings also includes a push plate and a lifting device in its operating mechanism; the lifting device is installed on the translation plate, the push plate is below the translation plate and connected to the lifting device, and the lifting device drives the push plate to move up and down. When the fixed clamping plate is positioned near the inner side of the lower frame under the action of the return spring, the lifting device drives the push plate to move downward. The push plate can move to a position in the horizontal direction between the fixed clamping plate and the lower frame. At this time, when the translation drive device is activated, it can drive the translation plate, the lifting device, and the push plate to move towards the center of the lower frame. After the push plate contacts the fixed clamping plate, the translation drive device continues to operate, and the push plate pushes the fixed clamping plate to move towards the center of the lower frame. The lifting device drives the push plate to move upward. When the push plate leaves the space between the fixed clamping plate and the lower frame in the horizontal direction, the push plate will not hinder the fixed clamping plate, the moving clamping plate and the hinge block from moving away from the center of the lower frame under the action of the return spring.

[0010] The aforementioned integrated heating and molding device for fiber-reinforced thermoplastic composites used for power battery casings has a translation plate located above the fixed clamping plate and the moving clamping plate, a lifting device located in the middle of the translation plate, and a telescopic device located at the end of the translation plate.

[0011] The aforementioned fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casings has multiple movable clamping plates in each clamping device. Each movable clamping plate is rotatably connected to a hinge block via a pin. The pins in the same clamping device are arranged on a straight line parallel to the lower frame. A fixed rod parallel to the pin is fixedly connected to each movable clamping plate. The fixed rod is located on the outside of the pin away from the center of the lower frame. An extension rod extending outward to below the telescopic rod is fixed on the fixed rod. When the telescopic device drives the telescopic rod to extend downward and contact the extension rod, it continues to extend. The extension rod, the fixed rod, and each movable clamping plate swing around the pin to overcome the elastic force of the clamping elastic element, and the jaws between the fixed clamping plate and each movable clamping plate open.

[0012] The aforementioned fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casings has multiple moving clamping plates in each clamping device. Each moving clamping plate is rotatably connected to a hinge block via a pin. The pins in the same clamping device are arranged on a straight line parallel to the lower frame. A fixed rod parallel to the pin is fixedly connected to each moving clamping plate. The fixed rod is located on the outside of the pin away from the center of the lower frame. An extension rod extending outward is fixed on the fixed rod. External force drives the extension rod, the fixed rod, and each moving clamping plate to swing around the pin to overcome the elastic force of the clamping elastic element, and the jaws between the fixed clamping plate and each moving clamping plate open.

[0013] The aforementioned integrated heating and molding device for fiber-reinforced thermoplastic composites used in power battery casings includes an operating device on each upper frame, which further comprises an upper transition rod parallel to the upper frame. The upper transition rod is slidably mounted on the upper frame in a direction perpendicular to the upper frame via a slide rail two. A translation drive device two is disposed between the upper transition rod and the upper frame to drive the upper transition rod to move in a direction perpendicular to the upper frame. A translation plate is slidably mounted on the upper transition rod in a direction perpendicular to the upper transition rod via a slide rail three. The translation drive device three is disposed between the upper transition rod and the translation plate to drive the translation plate to move in a direction perpendicular to the upper transition rod.

[0014] The aforementioned fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing further includes a lower transition rod fixed on the lower frame, parallel to the lower frame and located inside the lower frame. A guide rod is slidably disposed on the lower transition rod in a direction perpendicular to the lower transition rod. A reset spring is disposed between the lower transition rod and the fixed clamping plate or hinge block. In normal operation, the reset spring causes the fixed clamping plate to be located near the inside of the lower transition rod.

[0015] The aforementioned fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing has two lower frame frames parallel to the track with downwardly extending anti-derailment plates fixed to the outside of the track.

[0016] The plate is clamped by the jaws formed by the moving and fixed clamping plates in the four clamping devices at the four edges of the plate. The moving clamping plate is then subjected to an outward force by the return spring, which fixes the plate to the lower frame. At the same time, the plate is stretched and tensioned, making the plate basically flat. Even if the center of the plate may sag slightly under the action of gravity, the overall curvature of the plate is basically uniform, with virtually no wrinkles, folds, or deformations. The surface texture of the plate is uniform and regular (especially for plates that have been heated and baked), which improves the quality of the plate after hot pressing.

[0017] Under normal conditions, the jaws are closed under the action of the clamping elastic element. When the moving clamp is rotated to overcome the force of the clamping elastic element, the jaws open, and the plate can be released. The operation of clamping or releasing the plate is convenient.

[0018] If the clamping device is equipped with an operating device, when the telescopic rod is located on the upper outer side of the moving clamping plate, the telescopic device drives the telescopic rod to move downward, causing the moving clamping plate to swing around the pin shaft to overcome the elastic force of the clamping elastic element, and the jaws can open, further improving the level of automation and work efficiency.

[0019] When the jaws (moving and fixed clamping plates, etc.) clamp the sheet metal, the jaws are away from the inner side of the lower frame (close to the center of the lower frame). After the jaws release the sheet metal, they will return to a position close to the inner side of the lower frame (away from the center of the lower frame) under the action of the return spring. To enable the telescopic device to drive the moving clamping plate to swing at different positions to open the jaws, the telescopic device is fixed to a movable translation plate, and moves with the translation plate. When it is necessary to open the jaws, the telescopic device and the translation plate move together until the telescopic rod is located on the upper outer side of the moving clamping plate, at which point the telescopic device can be activated.

[0020] The sheet material is clamped and fixed to the lower frame, and can move along the track with the lower frame. It can be easily moved to the required work station: loading station, baking station, hot pressing station, realizing rapid transfer, improving work efficiency and reducing work difficulty.

[0021] At the baking station, the board is held between the jaws. After the board is heated, it moves along the track to the hot pressing station with the clamping device. The transfer is quick, convenient and reliable.

[0022] After heating, the sheet material enters the upper and lower hot press plates, which are opposite each other. The jaws that clamp the sheet material on all four sides open, and the sheet material falls onto the lower hot press plate. Under the action of the return spring, the four clamping devices move outward away from the center of the lower frame. The clamping devices do not hinder the up and down movement of the upper hot press plate.

[0023] While hot-pressing the previous board, the clamping device first moves the loading station to clamp and position the new board, and then moves to the baking station to bake the new board, which significantly improves the work efficiency.

[0024] To facilitate pushing the fixed clamping plate and other components closer to the center of the lower frame despite the force of the return spring, a push plate is installed on the operating device. When the push plate is positioned horizontally between the fixed clamping plate and the lower frame, the translation drive device, when activated, can move the translation plate and push plate towards the center of the lower frame. The push plate then pushes the fixed clamping plate and other components closer to the center of the lower frame, further improving the level of automation and operational efficiency.

[0025] However, if the push plate is always located between the fixed clamp and the lower frame in the horizontal direction, the push plate may prevent the fixed clamp and other components from moving outward under the action of the return spring. Therefore, the push plate needs to be able to move up and down. Thus, the push plate is connected to the lifting device, which is set on the translation plate. The lifting device and the push plate move horizontally with the translation plate, and the lifting device drives the push plate to move up and down.

[0026] To effectively clamp the sheet metal, each clamping device has multiple movable clamping plates. To drive all the movable clamping plates to move together and reduce the force required to drive the movable clamping plates to swing, an extension rod extending outward is fixed to a fixed rod parallel to the pin shaft. By pressing down the extension rod with external force, the jaws between the fixed clamping plate and each movable clamping plate open.

[0027] The horizontal movement range of the operating device is expanded by the upper transition rod, which can move relative to the upper frame, making it more adaptable to different sizes of sheet metal.

[0028] Translation drive device 1, translation drive device 2, translation drive device 3, etc. are existing technologies. For example, a gear and rack drive device with a gear that rotates under the drive of a motor can be used, or a nut screw drive device with a screw that can be rotated manually, etc.

[0029] Slide rail 1, slide rail 2, slide rail 3, etc. are existing technologies, such as linear guide rails. Attached Figure Description

[0030] Figure 1 , 2 Figures 2 and 3 are structural diagrams of the clamping device and part of the track.

[0031] Figure 4 , 5 All of these are structural diagrams of the upper frame and the operating device.

[0032] Figure 6 , 7 All of these are structural diagrams of the lower frame and clamping device.

[0033] Figure 8 , 9 All of these are structural diagrams of fixed clamping plates, moving clamping plates, lower transition plates, translation plates, push plates, etc.

[0034] Figure 10 This diagram shows the interaction between the upper frame, operating device, lower frame, and clamping device.

[0035] Figure 11 , 12 These are schematic diagrams showing the tracks passing through the baking machine and hot press.

[0036] Figure 13 This diagram illustrates the principle of the clamping device and operating mechanism when the jaws open before gripping the sheet metal and the plate moves downward.

[0037] Figure 14 This diagram illustrates the principle of clamping devices and operating mechanisms used when clamping plates with closed jaws and when the plate moves inward.

[0038] Figure 15 This is a schematic diagram of the clamping device and operating device for the sheet material during the baking process.

[0039] Figure 16 This is a schematic diagram of the clamping device and operating device for the sheet metal in the hot pressing station.

[0040] Figure 17 This is a schematic diagram of the clamping device and operating device when the sheet metal is in the hot pressing station, the jaws are loosened, and the fixed clamping plate and the translation plate have not moved outward.

[0041] Figure 18 This is a schematic diagram of the clamping device and operating device when the sheet metal is in the hot pressing station, the jaws are loosened, and the fixed clamp and the translation plate are moved outward.

[0042] Figure 19 , 20 This is a schematic diagram of the clamping device, lower frame, etc., in Embodiment 2 when clamping and releasing the plate.

[0043] In the diagram, operating device 1, Upper transition rod 11, translation plate 12, Telescopic device 13, telescopic rod 131 Translation drive unit 2 (14), nut (141), lead screw (142), bearing housing (143), handwheel (144). Slide rail 2, 15 Translation drive unit 3 (16), rack (161), gear (162), motor (163). 17. Slide rail 3; 18. Lifting device; 19. Push plate; Board material 2; Top frame 4, top border 41; Clamping device 5, fixed clamping plate 51, movable clamping plate 52, hinge block 53, clamping elastic element 54, pin 55, fixing rod 56, extension rod 57, guide rod 58, return spring 59; Lower frame 6, lower side frame 61, lower transition rod 62, anti-derailment plate 63, connecting rod 64; Track 7, Roller 71; Hot press 8, gantry frame 80, upper hot press plate 81, lower hot press plate 82; Baking machine 9, door frame 90, upper heating plate 91, lower heating plate 92. Detailed Implementation

[0044] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Example 1

[0045] An integrated heating and molding device for fiber-reinforced thermoplastic composites (composite materials) used for power battery casings includes a baking machine 9 with a gantry frame 90, an upper heating plate 91, and a lower heating plate 92, and a hot press 8 with a gantry frame 80, an upper hot press plate 81, and a lower hot press plate 82. The baking machine 9 and the hot press 8 are arranged longitudinally back and forth. Two parallel longitudinally extending tracks 7 pass through the gantry frame and the gantry frame, and the tracks 7 are located on the outside of the upper heating plate, the lower heating plate, the upper hot press plate, and the lower hot press plate. The tracks 7 have clamping devices for clamping or releasing the sheet material (fiber-reinforced thermoplastic composite) and can move back and forth along the tracks 7. Rollers 71 protruding from the upper surface of the tracks 7 are spaced apart to facilitate the rolling of the clamping devices on them.

[0046] The clamping device is a rectangular structure surrounding the sheet metal, including a frame, clamping device 5, and operating device. The clamping device is generally symmetrical in both left and right and front and back.

[0047] The frame includes an upper frame 4 and a lower frame 6 that are fixedly connected, with the upper frame 4 located above the lower frame 6.

[0048] The lower frame 6 is mainly composed of four lower side frames 61 and two lower transition rods 62 fixedly connected together. The two lower transition rods 62 are parallel to the two opposite lower side frames 61 and are located on the inner side of the lower frame 6 near the center of the lower frame 6. The outer sides of the two lower side frames 61, which are parallel to the track 7, are fixed with downwardly extending anti-derailment plates 63 located on the outer side of the track 7.

[0049] A clamping device 5 is provided on each of the two lower frame edges 61 and the two lower transition rods 62.

[0050] Each clamping device 5 includes a fixed clamping plate 51, a movable clamping plate 52, a hinge block 53, a clamping elastic element 54, a pin 55, a fixing rod 56, an extension rod 57, a guide rod 58, and a return spring 59; the fixed clamping plate 51, the movable clamping plate 52, and the hinge block 53 are all located on the inner side of the lower frame 61 or the lower transition rod 62 near the center of the lower frame 6.

[0051] Each clamping device 5 has multiple movable clamping plates 52, and each movable clamping plate 52 is rotatably connected to a hinge block 53 via a pin 55. The fixed clamping plate 51 and the inner ends of each movable clamping plate 52 near the center of the lower frame 6 form jaws facing each other. The hinge block 53 is located outside the jaws and fixed to the fixed clamping plate 51. A clamping elastic element 54 (such as a spring) is provided between the movable clamping plate 52 and the fixed clamping plate 51. Under normal conditions, the clamping elastic element 54 causes the movable clamping plate 52 to rotate around the pin 55 to the closed jaw state. In the same clamping device 5, each pin 55 is arranged on a straight line parallel to the lower frame 61 or the lower transition rod 62. The fixing rod 56, which is parallel to the pin 55, is fixedly connected to each moving clamp 52. The fixing rod 56 is located on the outside of the pin 55 away from the center of the lower frame 6. An extension rod 57 extending outward is fixed on the fixing rod 56.

[0052] The inner end of the guide rod 58 is fixedly connected to the fixed clamping plate 51. The return spring 59 is a tension spring. For the clamping device 5 provided on the lower frame 61, the guide rod 58 is horizontally slidably provided on the lower frame 61 in a direction perpendicular to the lower frame 61, and the return spring 59 is provided between the lower frame 61 (or the connecting rod 64 fixed on the lower frame 61) and the fixed clamping plate 51. In the normal state, the return spring 59 causes the fixed clamping plate 51 to be located near the inner side of the lower frame 61. For the clamping device 5 provided on the lower transition rod 62, the guide rod 58 is horizontally slidably provided on the lower transition rod 62 in a direction perpendicular to the lower transition rod 62, and the return spring 59 is provided between the lower transition rod 62 (or the connecting rod 64 fixed on the lower transition rod 62) and the fixed clamping plate 51. In the normal state, the return spring 59 causes the fixed clamping plate 51 to be located near the inner side of the lower transition rod 62.

[0053] The upper frame 4 is mainly composed of four upper frame borders 41 that are fixedly connected.

[0054] An operating device is provided on each upper frame 41. The operating device provided on each upper frame 41 includes an upper transition rod 11 parallel to the upper frame 41, a translation plate 12, a telescopic device 13, a second translation drive device 14, a second slide rail 15, a third translation drive device 16, a third slide rail 17, a lifting device 18, and a push plate 19.

[0055] The upper transition rod 11 is horizontally slidably mounted on the upper frame 4 in a direction perpendicular to the upper frame 41 via the second slide rail 15. The second translation drive device 14 is disposed between the upper transition rod 11 and the upper frame 41 to drive the upper transition rod 11 to move horizontally in a direction perpendicular to the upper frame 41. The translation plate 12 is horizontally slidably mounted on the upper transition rod 11 in a direction perpendicular to the upper transition rod 11 via the third slide rail 17. The third translation drive device 16 is disposed between the upper transition rod 11 and the translation plate 12 to drive the translation plate 12 to move horizontally in a direction perpendicular to the upper transition rod 11.

[0056] The translation drive device 2 14 is prior art. In this embodiment, the translation drive device 2 14 includes a nut 141 fixed on the upper transition rod 11, a lead screw 142 cooperating with the nut, the outer side of the lead screw being rotatably mounted on a bearing seat 143, the bearing seat being fixed on the upper frame 41, and a handwheel 144 fixed to the outer end of the lead screw. Rotating the handwheel causes the nut and the upper transition rod 11 to move horizontally in a direction perpendicular to the upper frame 41.

[0057] The translation drive device 316 is prior art. In this embodiment, the translation drive device 316 is fixed to the rack 161 on the translation plate 12. The rack is parallel to the slide rail 317. The gear 162 that meshes with the rack is fixed to the output shaft of the motor 163. The motor housing is fixed to the upper transition rod 11. When the motor 163 is activated, the gear 162 rotates, driving the rack 161 and the translation plate 12 to move horizontally along the slide rail 317 in a direction perpendicular to the upper transition rod 11.

[0058] The telescopic device 13 is a cylinder, which is fixed on the translation plate 12. The piston rod of the cylinder, which is the telescopic device 13, is the telescopic rod 131 that can extend and retract vertically. The telescopic rod 131 passes downward through the translation plate 12.

[0059] When the lower end of the telescopic rod 131 is opposite to the upper outer part of the extension rod 57 away from the center of the lower frame 6, the telescopic device 13 drives the telescopic rod 131 to extend downward and continue to extend after contacting the extension rod 57. The extension rod 57, the fixed rod 56, and each movable clamping plate 52 swing around the pin shaft 55 to overcome the elastic force of the clamping elastic element 54, and the jaws between the fixed clamping plate 51 and each movable clamping plate 52 open.

[0060] A lifting device 18 is provided on the translation plate 12. The lifting device 18 is a cylinder. The piston rod of the cylinder of the lifting device 18 passes downward through the translation plate 12 and is connected to the push plate 19 below the translation plate 12, thereby driving the push plate 19 to move up and down.

[0061] When the fixed clamping plate 51 is positioned near the lower frame 61 or the inner side of the lower transition rod 62 under the action of the return spring 59, the lifting device 18 drives the push plate 19 to move downward. The push plate 19 can move to a position in the horizontal direction between the fixed clamping plate 51 and the lower frame 61 or the lower transition rod 62. At this time, the translation drive device 3 16 is activated, which can drive the translation plate 12, the lifting device 18, the push plate 19, etc. to move towards the center of the lower frame 6. After the inner side of the push plate 19 contacts the outer side of the fixed clamping plate 51, the translation drive device 3 16 continues to operate, and the push plate 19 pushes the fixed clamping plate 51 to move towards the center of the lower frame 6. The lifting device 18 drives the push plate 19 to move upward. When the push plate 19 leaves the space between the fixed clamping plate 51 and the lower frame 61 in the horizontal direction, the push plate 19 will not prevent the fixed clamping plate 51, the moving clamping plate 52 and the hinge block 53 from moving away from the center of the lower frame 6 under the action of the return spring 59.

[0062] The translation plate 12 is located above the fixed clamping plate 51 and the movable clamping plate 52. The translation plate 12 and the fixed clamping plate 51, which are directly or indirectly set on the same side of the frame, are parallel to the lower frame 61 (or the upper frame 41) of the frame. The lifting device 18 and the push plate 19 are located in the middle of the translation plate 12, and the telescopic device 13 is located at the end of the translation plate 12. The lifting device 18, the push plate 19 and the telescopic device 13 will not interfere with each other.

[0063] Large-format sheet material heating and molding method, steps: a. See Figure 11 , 13 The clamping device moves on the track 7 to the loading station in front of the baking machine 9; the board is moved by the existing feeding device to a position where the center of the board coincides with the center of the lower frame 6 and the four sides of the board are horizontally opposite to the jaws; the telescopic device 13 drives the telescopic rod 131 to extend downward and continue to extend after contacting the extension rod 57; the extension rod 57, the fixed rod 56, and each moving clamp 52 swing around the pin shaft 55 to overcome the elastic force of the clamping elastic element 54; the jaws between the fixed clamp 51 and each moving clamp 52 open; the lifting device 18 drives the push plate 19 to move downward; the push plate 19 moves to a position in the horizontal direction between the outer side of the fixed clamp 51 and the lower frame 61 or the inner side of the lower transition rod 62. When the translation drive device 316 is activated, it drives the translation plate 12, push plate 19, etc., to move towards the center of the upper frame 4. After the inner side of the push plate 19 contacts the outer side of the fixed clamping plate 51, the push plate 19 pushes the fixed clamping plate 51 to overcome the force of the return spring 59 and move towards the center of the lower frame 6 until the four edges of the plate enter the jaws; see also Figure 14 The telescopic device 13 drives the telescopic rod 131 to retract upwards, closing the jaws and clamping the four sides of the plate; the lifting device 18 drives the push plate 19 to move upwards, moving the push plate 19 to a position that will not obstruct the horizontal movement of the moving clamp 52, the fixed clamp 51, the fixed rod 56, etc.

[0064] b. The clamping device moves backward on track 7 until the plate is positioned between the upper and lower heating plates, reaching the baking station. (See [reference]). Figure 12 , 15 The center of the sheet material is aligned with the center of the upper heating plate, and the clamping device stops moving. In some baking machines, the lower heating plate (9) can move up and down, moving closer to the sheet material. The sheet material is then baked using both the upper and lower heating plates.

[0065] c. After baking, the clamping device moves backward on track 7 until the baked sheet is positioned between the upper and lower hot press plates, reaching the hot pressing station. (See...) Figure 16 When the center of the sheet metal is aligned with the center of the upper hot press plate, the clamping device stops moving. See Figure 17 The telescopic device 13 drives the telescopic rod 131 to extend downwards and continue to extend after contacting the extension rod 57. The extension rod 57, the fixed rod 56, and each movable clamping plate 52 swing around the pin shaft 55 against the elastic force of the clamping elastic element 54, and the jaws between the fixed clamping plate 51 and each movable clamping plate 52 open. The plate falls onto the lower hot press plate, and the four clamping devices 5 move outwards away from the center of the lower frame 6 under the action of the return spring 59. At the same time, the translation drive device 16 is activated, driving the translation plate 12, the push plate 19, etc., to move away from the center of the upper frame 4. See Figure 18 The clamping device will not obstruct the up-and-down movement of the upper hot platen.

[0066] d. The clamping device moves forward on the track 7 away from the hot pressing station. The upper and lower hot pressing plates of the hot press 8 move towards each other and come into contact with each other to hot press the plate. Steps a and b are performed sequentially while the plate is being hot pressed.

[0067] e. After hot pressing is completed, the upper and lower hot pressing plates move away from each other and are removed. Then, start from step c again. Example 2

[0068] The main difference between Example 2 and Example 1 is: See Figure 19 , 20 In Embodiment 2, the lower frame 6 is mainly composed of four lower frame borders 61 fixedly connected; the clamping devices 5 are all located on the lower frame borders; the outer end of the guide rod 58 passes through the lower frame border; the return spring 59 is a compression spring, located between the outer side of the lower frame border and the outer end of the guide rod 58, and wraps around the guide rod. See also Figure 20 When the jaws do not grip the plate 2, the moving clamp and other components move closer to the inside of the lower frame under the action of the return spring.

[0069] The above-described embodiments are merely preferred embodiments of this utility model and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. An integrated heating and molding device for fiber-reinforced thermoplastic composites used in power battery casings, comprising a baking machine, a hot press, a track, and a clamping device, wherein the baking machine has a gantry frame, an upper heating plate, and a lower heating plate, and the hot press has a gantry frame, an upper hot press plate, and a lower hot press plate, characterized in that: The baking machine and the hot press are arranged longitudinally back and forth, and two parallel longitudinally extending tracks pass through the gantry frame and the gantry frame; the tracks have clamping devices for clamping or releasing the fiber-reinforced thermoplastic composite as a sheet material and can move back and forth along the tracks. The clamping device is a rectangular structure surrounding the sheet metal, including a frame and clamping mechanisms. The frame includes a lower frame, which is rectangular and includes four bottom borders; Each lower frame is equipped with a clamping device, which includes a fixed clamping plate, a movable clamping plate, a hinge block, a guide rod, and a return spring. The fixed clamping plate, movable clamping plate, and hinge block are all located on the inner side of the lower frame near the center of the lower frame. The hinge block is fixed to the fixed clamping plate, and the movable clamping plate is rotatably connected to the hinge block via a pin. The inner ends of the fixed clamping plate and the movable clamping plate near the center of the lower frame are positioned opposite each other to form jaws. The hinge block is located on the outer side of the jaws. A clamping elastic element is provided between the movable clamping plate and the fixed clamping plate. In its normal state, the clamping elastic element causes the movable clamping plate to rotate around the pin to the closed jaw state. When the movable clamping plate is rotated by an external force to overcome the force of the clamping elastic element, the jaws open. The inner end of the guide rod is fixedly connected to the fixed clamping plate. The guide rod is slidably disposed on the lower frame in a direction perpendicular to the lower frame. The return spring is disposed between the lower frame and the fixed clamping plate or the hinge block. In its normal state, the return spring causes the fixed clamping plate to be located near the inner side of the lower frame.

2. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 1, characterized in that: The clamping device also includes an operating device; The frame also includes an upper frame, which is fixedly connected to the lower frame. The upper frame is located above the lower frame. The upper frame is rectangular and includes four upper borders. An operating device is provided on each upper frame. The operating device includes a push plate and a lifting device. The operating device includes a translation plate, a translation drive device, a slide rail, and a telescopic device. The translation plate is located on the inner side of the upper frame near the center of the upper frame. The translation plate is slidably mounted on the upper frame in a direction perpendicular to the upper frame via the slide rail. The translation drive device is located between the upper frame and the translation plate to drive the translation plate to move in a direction perpendicular to the upper frame. The telescopic device is fixed on the translation plate and has a telescopic rod that can extend and retract vertically. The lower end of the telescopic rod is opposite to the upper outer part of the movable clamping plate away from the center of the lower frame. When the telescopic device drives the telescopic rod to extend downward and contact the movable clamping plate, it continues to extend. The telescopic rod drives the movable clamping plate to swing around the pin shaft to overcome the elastic force of the clamping elastic element, and the jaws open.

3. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 2, characterized in that: The operating device also includes a push plate and a lifting device; A lifting device is installed on the translation plate, and a push plate is located below the translation plate and connected to the lifting device. The lifting device drives the push plate to move up and down. When the fixed clamping plate is positioned near the inner side of the lower frame under the action of the return spring, the lifting device drives the push plate to move downward. The push plate can move to a position in the horizontal direction between the fixed clamping plate and the lower frame. At this time, when the translation drive device is activated, it can drive the translation plate, the lifting device, and the push plate to move towards the center of the lower frame. After the push plate contacts the fixed clamping plate, the translation drive device continues to operate, and the push plate pushes the fixed clamping plate to move towards the center of the lower frame. The lifting device drives the push plate to move upward. When the push plate moves horizontally away from the fixed clamp plate and the lower frame, it will not prevent the fixed clamp plate, the moving clamp plate and the hinge block from moving away from the center of the lower frame under the action of the return spring.

4. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 3, characterized in that: The translation plate is located above the fixed clamping plate and the moving clamping plate, the lifting device is located in the middle of the translation plate, and the telescopic device is located at the end of the translation plate.

5. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 3, characterized in that: Each clamping device has multiple movable clamping plates, and each movable clamping plate is rotatably connected to a hinge block via a pin. The pins in the same clamping device are arranged on a straight line parallel to the lower frame. A fixed rod parallel to the pin is fixedly connected to each movable clamping plate. The fixed rod is located on the outside of the pin away from the center of the lower frame. An extension rod extending outward to the bottom of the telescopic rod is fixed on the fixed rod. When the telescopic device drives the telescopic rod to extend downward and contact the extension rod, it continues to extend. The extension rod, the fixed rod, and each movable clamping plate swing around the pin to overcome the elastic force of the clamping elastic element, and the jaws between the fixed clamping plate and each movable clamping plate open.

6. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 1, characterized in that: Each clamping device has multiple movable clamping plates, and each movable clamping plate is rotatably connected to a hinge block via a pin. The pins in the same clamping device are arranged on a straight line parallel to the lower frame. A fixed rod parallel to the pin is fixedly connected to each movable clamping plate. The fixed rod is located on the outside of the pin away from the center of the lower frame. An extension rod extending outward is fixed on the fixed rod. By external force, the extension rod, the fixed rod, and each movable clamping plate swing around the pin to overcome the elastic force of the clamping elastic element, and the jaws between the fixed clamping plate and each movable clamping plate open.

7. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 1, characterized in that: The operating device provided on each upper frame also includes an upper transition rod parallel to the upper frame. The upper transition rod is slidably mounted on the upper frame in a direction perpendicular to the upper frame via a slide rail two. A translation drive device two is provided between the upper transition rod and the upper frame to drive the upper transition rod to move in a direction perpendicular to the upper frame. A translation plate is slidably mounted on the upper transition rod in a direction perpendicular to the upper transition rod via a slide rail three. A translation drive device three is provided between the upper transition rod and the translation plate to drive the translation plate to move in a direction perpendicular to the upper transition rod.

8. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 1, characterized in that: It also includes a lower transition rod fixed on the lower frame, parallel to the lower frame and located inside the lower frame. A guide rod is slidably disposed on the lower transition rod in a direction perpendicular to the lower transition rod. A return spring is disposed between the lower transition rod and the fixed clamping plate or hinge block. In normal operation, the return spring causes the fixed clamping plate to be located close to the inside of the lower transition rod.

9. The fiber-reinforced thermoplastic composite heating and molding integrated device for power battery casing as described in claim 1, characterized in that: Two lower frame edges parallel to the track are fixed to the outer sides with downward-extending anti-derailment plates located on the outer side of the track.

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