Thermoforming processing device and method

Abstract

The present application is applied in the technical field of thermoforming processing, and relates to a thermoforming processing device and method. A frame is provided, and the frame is provided with a processing station, a clamping apparatus for clamping a peripheral side of a material, a heating apparatus for heating the material in the clamping apparatus, a lower mold apparatus for pushing up and forming the material in the clamping apparatus, and a frame pressing apparatus. The clamping apparatus is placed at the processing station. The lower mold apparatus comprises a lower mold, and the lower mold is provided with a plurality of vacuum suction holes. The frame pressing apparatus comprises a movable pressing frame and a first driving component for driving the movement of the pressing frame. In the present application, when the lower mold rises, the material rises together with the lower mold, and after the material is pushed up, the movable pressing frame fixes the peripheral side of the material, so that the uniformity of the sidewalls of a finished product is improved, and the bottom thereof maintains a required thickness.

Description

Thermoforming processing equipment and method Technical Field

[0001] The present application relates to the field of thermoforming processing technology, and in particular to a thermoforming processing device and method. Background Art

[0002] Thermoforming is a specialized plastics processing method used to shape thermoplastic sheets into various products. The sheet is clamped on a frame and heated until softened. External force then forces it into contact with the mold surface, achieving a shape that matches the molded surface. After cooling and finalizing, trimming is performed to create the finished product. This process is also used in rubber processing. Recent advances in thermoforming have included continuous production technology, such as the transition from sheet extrusion to thermoforming. Technical issues

[0003] When using existing thermoforming methods to produce larger products from thick sheets, the upward movement of the lower mold clamps the sheet's ring side, causing it to stretch. This results in poor sidewall uniformity, particularly at the bottom. To ensure the bottom thickness meets design requirements, the material thickness is often increased, which in turn increases raw material procurement and processing costs.

[0004] In view of this, there is an urgent need for a thermoforming processing equipment and method to solve the above problems. Technical Solutions

[0005] To help solve the problems existing in the prior art, the present application provides a thermoforming processing equipment and method, which adopts the following technical solution: comprising: a frame, the frame being provided with a processing station, a clamping device for clamping the side of a material ring, a heating device for heating the material at the clamping device, a lower mold device for lifting the material at the clamping device to form the material, and a pressing frame device;

[0006] The clamping device is placed on the processing station;

[0007] The lower mold device includes a lower mold, and the lower mold is provided with a plurality of vacuum suction holes;

[0008] The pressing frame device includes a movable pressing frame and a first driving component for driving the movable pressing frame to move;

[0009] When the lower mold device is pushed upward, the clamping device releases the clamping of the material ring side, and the driving component drives the movable pressing frame to move downward to press the material ring side onto the processing station.

[0010] Through the above technical solution, when in use, the clamping device clamps the ring side of the material. After the heating device heats the material, when the lower mold device pushes up, the clamping device releases the clamping of the material, so that the heated and softened material rises with the lower mold and is wrapped on the lower mold. Then the first drive component drives the movable pressure frame to move downward, pressing the ring side of the material on the processing station, and then adsorbing the material through the vacuum suction hole on the lower mold so that the material fits on the lower mold. After the material cools down and the finished product is taken out, the material rises with the lower mold when the lower mold rises, and after the material is pushed up, the ring side of the material is fixed by the movable pressure frame, so that the side wall of the finished product is better and the bottom maintains a certain thickness.

[0011] In a specific possible implementation manner, the processing station includes a mounting plate, and a movable hole for the lower mold device to move is opened on the mounting plate.

[0012] Through the above technical solution, the processing station is used to place materials, and the lower mold moves from the movable hole to form the materials.

[0013] In a specific embodiment, the clamping device includes a plurality of clamping components that cooperate with each other to clamp the side of the material ring, the clamping components include a placement plate, a fixed clamping plate, a movable clamping plate, a control shaft, and a second drive component that drives the control shaft to rotate, the placement plate is slidably arranged on the mounting plate, the fixed clamping plate is placed on the placement plate, the control shaft is rotatably arranged on the placement plate, and the movable clamping plate is connected to the control shaft;

[0014] The movable clamping plate is arranged in parallel with the fixed clamping plate. When the second driving assembly drives the control shaft to rotate, the movable clamping plate moves away from or close to the fixed clamping plate.

[0015] Through the above technical solution, multiple clamping components are used to clamp the ring side of the material. When clamping the material, the ring side of the material is placed on multiple fixed clamping plates, and the second drive component drives the control shaft to rotate so that the movable clamping plate approaches the fixed clamping plate until the material is clamped.

[0016] In a specific embodiment, the heating device includes two heating mechanisms, each of which includes a heating component, a slide rail, and a third driving component. The slide rail is provided on a frame, and the heating component is slidably provided on the slide rail.

[0017] Among them, the two heating components are arranged in parallel. When the material at the clamping device needs to be heated, the two third driving components drive the corresponding heating components to slide, so that the two heating components are respectively placed on the upper and lower sides of the material.

[0018] Through the above technical solution, two heating mechanisms are used to heat the upper and lower sides of the material respectively. During heating, the third driving component drives the corresponding heating component to slide, so that the two heating components are placed on the upper and lower sides of the material respectively, and the upper and lower sides of the material are heated synchronously, so that the material is heated evenly.

[0019] In a specific possible implementation scheme, the lower mold device also includes a lifting platform, a plurality of guide rods and a fourth drive component for driving the lifting platform to perform lifting movements. The plurality of guide rods are vertically arranged at the bottom of the processing station, the lifting platform is slidably arranged on the plurality of guide rods, and the lower mold is placed on the lifting platform.

[0020] Through the above technical solution, during molding, the fourth driving component drives the lifting platform to move upward, causing the lower mold to move upward, pass through the movable hole, and lift the material upward to form the material.

[0021] In a specific feasible implementation scheme, the movable pressure frame includes two parallel synchronous plates, two parallel first pressure plates and two parallel second pressure plates, the two first pressure plates are respectively connected to the two synchronous plates at both ends, and the two second pressure plates are respectively connected to the two first pressure plates at both ends.

[0022] Through the above technical solution, two first pressing plates and two second pressing plates are used to form a rectangular frame, and the two synchronous plates are driven to perform lifting movements synchronously through the first driving assembly, so that the driven rectangular frame performs lifting movements, which is used to cooperate with the mounting plate to clamp the material ring side again.

[0023] In a specific embodiment, the second pressing plate includes two pressing plate sleeves and a sliding pressing plate, the ends of the two pressing plate sleeves that are away from each other are respectively slidably connected to the corresponding first pressing plate, and the ends of the two pressing plate sleeves that are close to each other are each provided with a sliding groove adapted to the sliding pressing plate, and the two ends of the sliding pressing plate are respectively slidably arranged in the two sliding grooves;

[0024] Two ends of the two first pressing plates are slidably connected to the corresponding synchronous plates.

[0025] Through the above technical solution, two first pressing plates are slidably arranged on two synchronous plates, and the pressing plate sleeve is slidably connected to the first pressing plate, and cooperates with the retractable second pressing plate, so that the size and position of the rectangular frame can be adjusted to adapt to the production of different products.

[0026] In a specific implementation scheme, the first driving assembly includes a plurality of cylinders, and the output ends of the plurality of cylinders are each provided with a connecting rod, and the bottom end of the connecting rod is connected to the corresponding synchronization plate.

[0027] Through the above technical solution, multiple cylinders are used to drive the two synchronous plates to perform lifting movements, so that the movable pressing frame can be more stable and movable.

[0028] In a specific feasible implementation plan, the frame pressing device also includes a synchronization mechanism, which includes four racks, two first synchronization shafts and two second synchronization shafts. The four racks are all slidably set on the frame, and the bottom ends of the four racks are respectively connected to the corresponding synchronization plates. The two first synchronization shafts are each provided with two gear rings, and are meshed with the two racks on the same side of the two synchronization plates through the two gear rings. The two second synchronization shafts are arranged on the frame, and bevel gears are provided at both ends of the two first synchronization shafts and the two second synchronization shafts. The two first synchronization shafts and the two second synchronization shafts are arranged in a rectangular shape, and two adjacent bevel gears are meshed.

[0029] Through the above technical solution, two first synchronous shafts are used to maintain the synchronous movement of the two corresponding racks, and two second synchronous shafts are used to keep the two ends of the two first synchronous shafts in synchronous movement, so as to achieve the goal of making the movable pressing frame move up and down smoothly, avoiding tilting and making it impossible to press the material ring side.

[0030] In a specific feasible implementation scheme, the frame is also provided with an upper mold frame device, and the upper mold frame device includes a mounting bracket, an upper mold frame, multiple sliding rods and a fifth drive assembly. The mounting bracket is placed above the mounting plate, and the multiple sliding rods are slidably arranged on the mounting bracket. The upper mold frame is placed at the bottom end of the multiple sliding rods. The fifth drive assembly is used to drive the upper mold frame to perform lifting movements, and an upper mold is installed on the upper mold frame.

[0031] With this technical solution, when the top surface of the material needs to be molded, the lower mold moves upward, releasing the material grip. The fifth drive assembly then drives the upper mold frame downward. The softened material rises with the lower mold, wrapping around it, and the upper mold frame presses down. When the upper and lower molds close, the movable press frame moves downward. After the product is formed and cooled, it can be removed to accommodate different thermoforming processes.

[0032] A thermoforming method, comprising the steps of:

[0033] The clamping device clamps the material ring side;

[0034] The heating device heats the material at the clamping device;

[0035] After the material is heated, the lower mold device pushes up, and the clamping device releases the clamping of the material ring side;

[0036] When the lower mold device stops, the first driving assembly drives the movable pressing frame to move downward, pressing the material ring side against the processing station;

[0037] The lower mold absorbs the material on the lower mold through a plurality of vacuum suction holes;

[0038] After the formed material cools down, the finished product is taken out. Beneficial effects

[0039] To sum up, when in use, the clamping device clamps the material ring side. After the heating device heats the material, when the lower mold device pushes up, the clamping device releases the clamping of the material, so that the heated and softened material rises with the lower mold and is wrapped on the lower mold. Then the first drive component drives the movable pressure frame to move downward, pressing the material ring side on the processing station, and then adsorbing the material through the vacuum suction hole on the lower mold so that the material fits on the lower mold. After the material cools down and the finished product is taken out, when the lower mold rises, the material rises with the lower mold, so that the side wall of the finished product is better and the bottom maintains the required thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG1 is a schematic diagram of the overall structure of Example 1 of the present application.

[0041] FIG2 is a schematic structural diagram of the internal structure of the rack in the first embodiment of the present application.

[0042] FIG3 is a schematic structural diagram of the clamping assembly in Example 1 of the present application.

[0043] FIG4 is a schematic structural diagram of the lower mold device in Example 1 of the present application.

[0044] FIG5 is a schematic structural diagram of the frame pressing device in the first embodiment of the present application.

[0045] FIG6 is an enlarged schematic diagram of the structure at point A in FIG5 .

[0046] Figure 7 is a structural diagram of the upper mold frame device in Example 1 of the present application.

[0047] Figure numerals: 1. Clamping device; 11. Placement plate; 12. Fixed splint; 13. Movable splint; 14. Control shaft; 2. Heating device; 21. Heating assembly; 22. Slide rail; 3. Lower mold device; 31. Lower mold; 32. Lifting platform; 33. Guide rod; 4. Movable pressure frame; 41. Synchronizing plate; 42. First pressure plate; 43. Pressure plate sleeve; 44. Sliding pressure plate; 5. Mounting plate; 6. Cylinder; 61. Connecting rod; 7. Synchronizing mechanism; 71. Rack; 72. First synchronization shaft; 73. Second synchronization shaft; 74. Gear ring; 75. Bevel gear; 8. Upper mold frame device; 81. Mounting bracket; 82. Upper mold frame; 83. Sliding rod. Modes for Carrying Out the Invention

[0048] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0049] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or equipment.

[0050] The present application is further described in detail below with reference to Figures 1-7.

[0051] Embodiment 1, referring to Figures 1-5, a thermoforming processing equipment comprises: a frame 100, on which a processing station 200, a clamping device 1 for clamping the side of the material ring, a heating device 2 for heating the material at the clamping device 1, a lower mold device 3 for lifting up to form the material at the clamping device 1, and a pressing frame device 300 are provided; the clamping device 1 is placed on the processing station 200, the processing station 200 comprises a mounting plate 5, on which a movable hole 500 for the lower mold device 3 to move is opened; the lower mold device 3 comprises a lower mold 31, on which a plurality of vacuum suction holes are provided; the pressing frame device 300 comprises a movable pressing frame 4 and a first driving component 400 for driving the pressing frame to move; in this way, when in use The clamping device 1 clamps the ring side of the material. After the heating device 2 heats the material, when the lower mold device 3 pushes up, the clamping device 1 releases the clamping of the material, so that the heated and softened material rises with the lower mold 31 and is wrapped on the lower mold 31. Then the first drive component 400 drives the movable pressing frame 4 to move downward, pressing the ring side of the material on the processing station 200, and then adsorbing the material through the vacuum suction hole on the lower mold 31 so that the material fits on the lower mold 31. After the material cools down and the finished product is taken out, the material rises with the lower mold 31 when the lower mold 31 rises. After the material is pushed up, the ring side of the material is fixed by the movable pressing frame 4, so that the side wall of the finished product is better and the bottom maintains the required thickness.

[0052] 2 and 3 , the clamping device 1 includes a plurality of clamping assemblies 600 that cooperate with each other to clamp the ring side of the material. The clamping assembly 600 includes a placement plate 11, a fixed splint 12, a movable splint 13, a control shaft 14, and a second drive assembly 700 for driving the control shaft 14 to rotate. The placement plate 11 is slidably arranged on the mounting plate 5 through a track, the fixed splint 12 is placed on the placement plate 11, the control shaft 14 is rotatably arranged on the placement plate 11, the movable splint 13 is connected to the control shaft 14, and the movable splint 13 is arranged parallel to the fixed splint 12; in this way, when it is necessary to clamp the material, the second drive assembly 700 (the second drive assembly 700 can be a motor) drives the control shaft 14 to rotate, and the movable splint 13 approaches the fixed splint 12 until the material is clamped.

[0053] 2 , the heating device 2 includes two heating mechanisms 800 , and the heating mechanism 800 includes a heating component 21 , a slide rail 22 and a third drive component. The slide rail 22 is arranged on the frame 100 , and the heating component 21 is slidably arranged on the slide rail 22 , and the two heating components 21 are arranged in parallel (the horizontal positions are respectively placed above and below the mounting plate 5 ); in this way, when it is necessary to heat the material at the clamping device 1 , the two third drive components drive (which can be a drive component composed of a motor, a gear and a chain) the corresponding heating component 21 (the heating component 21 can be an oven or a heating plate) to slide, so that the two heating components 21 are respectively placed on the upper and lower sides of the material, and the upper and lower sides of the material are heated at the same time, so that the material is heated evenly.

[0054] 4 , the lower mold device 3 further includes a lifting platform 32, a plurality of guide rods 33, and a fourth drive assembly for driving the lifting platform 32 to perform lifting movements. The plurality of guide rods 33 are vertically arranged at the bottom of the processing station 200, and the lifting platform 32 is slidably arranged on the plurality of guide rods 33. The lower mold 31 is placed on the lifting platform 32. In this way, when molding, the fourth drive assembly (which can be a cylinder, etc.) drives the lifting platform 32 to move upward, causing the lower mold 31 to move upward, thereby lifting the material and molding the material.

[0055] 1 and 5 , the first drive assembly 400 includes a plurality of cylinders 6, the output ends of the plurality of cylinders 6 are provided with connecting rods 61, the bottom ends of the connecting rods 61 are connected to the corresponding synchronous plates 41, the movable pressing frame 4 includes two parallel synchronous plates 41, two parallel first pressing plates 42 and two parallel second pressing plates 900, the two ends of the two first pressing plates 42 are respectively connected to the two synchronous plates 41, the two ends of the two second pressing plates 900 are respectively connected to the two first pressing plates 42, the second pressing plate 900 includes two pressing plate sleeves 43 and a sliding pressing plate 44, the ends of the two pressing plate sleeves 43 away from each other are respectively slidably connected to the corresponding first pressing plates 42, and the ends of the two pressing plate sleeves 43 close to each other are each provided with a sliding plate adapted to the sliding pressing plate 44 Grooves, the two ends of the sliding pressure plate 44 are respectively slidably set in the two sliding grooves; the two ends of the two first pressure plates 42 are slidably connected with the corresponding synchronous plates 41, so that when the material ring side needs to be pressed again, the cylinder 6 drives the connecting rod 61 to perform lifting and lowering movements, so that the two synchronous plates 41 move synchronously, and the rectangular frame composed of the two first pressure plates 42 and the two second pressure plates 900 moves downward until the material ring side is pressed, and according to the shape characteristics of different products, the two first pressure plates 42 slide on the two synchronous plates 41, and the pressure plate sleeve 43 slides on the first pressure plate 42, and the second pressure plate 900 is extended and retracted (the two ends of the sliding pressure plate 44 slide in the two pressure plate sleeves 43), so that the size and position of the rectangular frame can be adjusted to adapt to the production of different products.

[0056] 5 and 6, the frame pressing device 300 further includes a synchronization mechanism 7, which includes four racks 71, two first synchronization shafts 72, and two second synchronization shafts 73. The four racks 71 are all slidably arranged on the frame 100, and the bottom ends of the four racks 71 are respectively connected to the corresponding synchronization plates 41. The two first synchronization shafts 72 are each provided with two gear rings 74, and are engaged with the two racks 71 on the same side of the two synchronization plates 41 through the two gear rings 74. The two second synchronization shafts 73 are arranged on the frame 100, and the two first synchronization shafts 72 are respectively provided with two gear rings 74. Bevel gears 75 are provided at both ends of a synchronization shaft 72 and two second synchronization shafts 73. The two first synchronization shafts 72 and the two second synchronization shafts 73 are arranged in a rectangular shape, and two adjacent bevel gears 75 are engaged. In this way, the two first synchronization shafts 72 respectively maintain the synchronous movement of the two corresponding racks 71, and the two second synchronization shafts 73 keep the two ends of the two first synchronization shafts 72 in synchronous movement, so as to achieve the goal of making the movable pressing frame 4 perform a smooth lifting movement, avoid tilting during movement, and make it impossible to press the material ring side, thereby increasing the reliability of the equipment.

[0057] Referring to Figure 7, an upper mold frame device 8 is also provided on the frame 100. The upper mold frame device 8 includes a mounting bracket 81, an upper mold frame 82, multiple sliding rods 83 and a fifth driving assembly. The mounting bracket 81 is placed above the mounting plate 5, and multiple sliding rods 83 are slidably set on the mounting bracket 81. The upper mold frame 82 is placed at the bottom of the multiple sliding rods 83. The fifth driving assembly is used to drive the upper mold frame 82 to perform lifting movements. An upper mold is installed on the upper mold frame 82. In this way, when a thick sheet needs to be thermoformed, the fifth driving assembly (which can be a cylinder) drives the upper mold frame 82 to move downward so that it is pressed with the lower mold 31 moving upward to form a product.

[0058] Example 2, based on a thermoforming processing method of a thermoforming processing equipment described in Example 1, when thermoforming a thick sheet by blister forming:

[0059] The steps include:

[0060] The clamping device 1 clamps the material ring side;

[0061] The heating device 2 heats the material at the clamping device 1;

[0062] After the material is heated, the lower mold device 3 is pushed upward, and the clamping device 1 releases the clamping of the material ring side;

[0063] When the lower mold device 3 stops, the first driving assembly 400 drives the movable pressing frame 4 to move downward, pressing the material ring side against the processing station 200;

[0064] The lower mold 31 absorbs the material onto the lower mold 31 through a number of vacuum suction holes;

[0065] After the formed material cools down, the finished product is taken out.

[0066] When thermoforming thick sheets:

[0067] The steps include:

[0068] The clamping device 1 clamps the material ring side;

[0069] The heating device 2 heats the material at the clamping device 1;

[0070] After the material is heated, the lower mold device 3 pushes up, and the clamping device 1 releases the clamping of the material ring side, and at the same time the upper mold frame 82 moves downward with the upper mold;

[0071] When the lower mold assembly 3 and the upper mold are closed, the first driving assembly 400 drives the movable pressing frame 4 to move downward, pressing the material ring side against the processing station 200;

[0072] After the formed material cools down, the finished product is taken out.

[0073] In summary: when in use, the clamping device 1 clamps the material ring side. After the heating device 2 heats the material, when the lower mold device 3 pushes up, the clamping device 1 releases the clamping of the material, so that the heated and softened material rises with the lower mold 31 and is wrapped on the lower mold 31. Then the first drive component 400 drives the movable pressing frame 4 to move downward, pressing the material ring side onto the processing station 200. The material is then adsorbed through the vacuum suction holes on the lower mold 31 so that the material fits on the lower mold 31. After the material cools, the finished product is taken out. When the lower mold 31 rises, the material rises with the lower mold 31, so that the side wall of the finished product is more uniform and the bottom maintains the required thickness.

[0074] This equipment can not only perform thermoforming blister production of thick sheets, but also thermoforming die pressing production of thick sheets. When thick sheets need to be thermoformed, the fifth drive assembly drives the upper mold frame 82 to move the upper mold downward, so that it is pressed with the upward moving lower mold 31 to form the product.

[0075] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A thermoforming processing equipment, characterized in that, include: A machine frame (100), wherein the machine frame (100) is provided with a processing station (200), a clamping device (1) for clamping the material ring side, a heating device (2) for heating the material at the clamping device (1), a lower mold device (3) for lifting the material at the clamping device (1) and forming the material, and a pressing frame device (300); The clamping device (1) is placed on a processing station (200); The lower mold device (3) comprises a lower mold (31), and the lower mold (31) is provided with a plurality of vacuum suction holes; The frame pressing device (300) comprises a movable press frame (4) and a first driving component (400) for driving the movable press frame to move.

2. The thermoforming processing equipment according to claim 1, characterized in that: The processing station (200) comprises a mounting plate (5), and a movable hole (500) for the lower mold device (3) to move is provided on the mounting plate (5).

3. The thermoforming processing equipment according to claim 2, characterized in that: The clamping device (1) includes a plurality of clamping components (600) that cooperate with each other to clamp the material ring side, the clamping component (600) includes a placement plate (11), a fixed clamping plate (12), a movable clamping plate (13), a control shaft (14) and a second driving component (700) for driving the control shaft (14) to rotate, the placement plate (11) is slidably arranged on the mounting plate (5), the fixed clamping plate (12) is placed on the placement plate (11), the control shaft (14) is rotatably arranged on the placement plate (11), and the movable clamping plate (13) is connected to the control shaft (14); The movable splint (13) is arranged in parallel with the fixed splint (12).

4. The thermoforming processing equipment according to claim 1, characterized in that: The heating device (2) includes two heating mechanisms (800), the heating mechanism (800) includes a heating component (21), a slide rail (22) and a third driving component, the slide rail (22) is arranged on the frame (100), and the heating component (21) is slidably arranged on the slide rail (22); The two heating assemblies (21) are arranged in parallel, and the two third driving assemblies are used to drive the corresponding heating assemblies (21) to slide.

5. The thermoforming processing equipment according to claim 1, characterized in that: The lower mold device (3) further includes a lifting platform (32), a plurality of guide rods (33) and a fourth driving assembly for driving the lifting platform (32) to perform lifting movements, wherein the plurality of guide rods (33) are vertically arranged at the bottom of the processing station (200), the lifting platform (32) is slidably arranged on the plurality of guide rods (33), and the lower mold (31) is placed on the lifting platform (32).

6. The thermoforming processing equipment according to claim 1, characterized in that: The movable pressing frame (4) comprises two parallel synchronous plates (41), two parallel first pressing plates (42), and two parallel second pressing plates (900), wherein the two first pressing plates (42) are connected at both ends to the two synchronous plates (41), and the two second pressing plates (900) are connected at both ends to the two first pressing plates (42).

7. The thermoforming processing equipment according to claim 6, characterized in that: The second pressure plate (900) includes two pressure plate sleeves (43) and a sliding pressure plate (44), and the ends of the two pressure plate sleeves (43) that are away from each other are respectively slidably connected to the corresponding first pressure plate (42), and the ends of the two pressure plate sleeves (43) that are close to each other are each provided with a sliding groove adapted to the sliding pressure plate (44), and the two ends of the sliding pressure plate (44) are respectively slidably arranged in the two sliding grooves; Both ends of the two first pressing plates (42) are slidably connected to the corresponding synchronizing plates (41).

8. The thermoforming processing equipment according to claim 6, characterized in that: The first drive assembly (400) comprises a plurality of cylinders (6), and the output ends of the plurality of cylinders (6) are each provided with a connecting rod (61), and the bottom end of the connecting rod (61) is connected to the corresponding synchronization plate (41).

9. The thermoforming processing equipment according to claim 7, characterized in that: The frame pressing device (300) further includes a synchronization mechanism (7), which includes four racks (71), two first synchronization shafts (72) and two second synchronization shafts (73). The four racks (71) are all slidably arranged on the frame (100). The bottom ends of the four racks (71) are respectively connected to the corresponding synchronization plates (41). The two first synchronization shafts (72) are each sleeved with two gear rings (74) and meshed with the two racks (71) on the same side of the two synchronization plates (41) through the two gear rings (74). The two second synchronization shafts (73) are arranged on the frame (100). Both ends of the two first synchronization shafts (72) and the two second synchronization shafts (73) are provided with bevel gears (75). The two first synchronization shafts (72) and the two second synchronization shafts (73) are arranged in a rectangular shape, and two adjacent bevel gears (75) are meshed.

10. The thermoforming processing equipment according to claim 1, characterized in that: The frame (100) is further provided with an upper mold frame device (8), the upper mold frame device (8) comprising a mounting bracket (81), an upper mold frame (82), a plurality of sliding rods (83) and a fifth driving assembly, the mounting bracket (81) being placed above the mounting plate (5), the plurality of sliding rods (83) being slidably arranged on the mounting bracket (81), the upper mold frame (82) being placed at the bottom ends of the plurality of sliding rods (83), the fifth driving assembly being used to drive the upper mold frame (82) to perform a lifting movement, and the upper mold frame (82) being provided with an upper mold.

11. A thermoforming method, applied to the thermoforming equipment according to claim 1, characterized in that: include: The clamping device (1) clamps the material ring side; The heating device (2) heats the material at the clamping device (1); After the material is heated, the lower mold device (3) is pushed upward, and the clamping device (1) releases the clamping of the material ring side; When the lower mold device (3) stops, the first driving assembly (400) drives the movable pressing frame (4) to move downward, pressing the material ring side against the processing station (200); The lower mold (31) absorbs the material onto the lower mold (31) through a plurality of vacuum suction holes; After the formed material cools down, the finished product is taken out.

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