Direct thermal forming processing technology of flitch

Abstract

The invention discloses a direct thermal forming processing technology of a flitch, which belongs to the technical field of die processing and comprises the following steps: S1, preparing a plate material with the same specification, and feeding by using a conveying device; s2, the conveyed materials are heated through a heating device, and temperature regulation and control are conducted through a control device; and S3, carrying and feeding are conducted, specifically, the heated material plate is moved to the position of a mold, and pressing and positioning are conducted. Through the arrangement of the multiple heating plates, the positioning rods are in sliding connection with the positioning plates, and meanwhile, the rotating plates are in threaded connection with the positioning rods, so that the rotating plates can adjust the heights of the heating plates through the positioning rods, and then different positions of a material plate can be heated at different temperatures; through the action of the four suction cups and the concentric-square-shaped pad and driving of the trackless air cylinder, a material plate can be automatically fed through the suction cups, and meanwhile pressing and positioning can be achieved, so that the material plate can be tensioned, fixed and limited during forming operation, and folding is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of mold processing, and in particular relates to a direct hot forming processing technology for a material plate. Background Art

[0002] The material sheet generally refers to thermoplastic plastic sheet materials, such as polystyrene, polyvinyl chloride, polycarbonate, etc. During thermoforming, the general process is to clamp the thermoplastic plastic sheet on the frame, heat it to a softened state, and then, under the action of external force, make it close to the mold surface to obtain a shape similar to the mold surface. After cooling and shaping, it is trimmed to become a finished product.

[0003] When thermoforming existing thermoplastic sheets, the heating of the sheet is usually synchronized as a whole, which results in the sheet being too thin or having holes when being pulled together with different shaped surfaces in the mold due to the different required drafting forces. When the sheet is pressurized and vacuum adsorbed, the adsorption force of each hole generally remains unchanged, resulting in suction at some locations during the application, and continued suction at some locations that have not been closely adsorbed, which easily causes the sheet to have bumps and depressions.

[0004] In order to solve the above problems, the present application proposes a direct hot forming process for a sheet material. Summary of the invention

[0005] In view of the problems in the related art, the present invention proposes a direct thermoforming process for a sheet material to overcome the above technical problems existing in the existing related art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A direct hot forming process for a sheet material comprises the following steps:

[0008] S1: Prepare the sheet materials, and the specifications of the sheet materials are consistent, and use the conveyor device to load the materials;

[0009] S2: The transferred material is heated by a heating device, and the temperature is controlled by a control device;

[0010] S3: transport and load the material, move the heated material sheet to the mold position, and press and position it;

[0011] S4: The sheet is extruded and formed by a pneumatic mechanism, and finally the edges and corners are cut by a cutter;

[0012] A direct hot forming processing device for a material plate comprises a shell, a placing table is installed on the inner wall of the shell, a placing groove is opened on the top of the placing table, a placing plate is slidably connected to the inner wall of the placing groove, a lower mold is installed on the placing plate, four lifting cylinders are installed on the bottom inner wall of the placing groove, pistons of the lifting cylinders are fixedly connected to the placing plate, and a top frame is installed on the top of the placing table;

[0013] The material handling mechanism comprises two trackless cylinders, the two trackless cylinders are fixedly mounted on the top of the placing table, a mounting plate is mounted on the piston of the trackless cylinder, two lifting cylinders are fixedly mounted on the sides of the two mounting plates close to each other, and the same circular plate is mounted on the pistons of the four lifting cylinders;

[0014] The heating mechanism comprises a positioning plate, the positioning plate is mounted on the front side of the housing, and a plurality of heating plates are mounted on the bottom of the positioning plate;

[0015] The stamping forming mechanism comprises a stamping upper die, a stamping cylinder is installed at the bottom of the top frame, the stamping upper die is slidably installed on the piston of the stamping cylinder, a piston plate is slidably connected to the inner wall of the stamping upper die, and the piston plate is fixedly connected to the piston of the stamping cylinder;

[0016] The conveying device is arranged on the front side of the shell and cooperates with the heating plate. A controller is installed on the front side of the shell, and the controller is connected to the conveying device. The front and rear sides of the shell are respectively provided with a loading port and a discharging port, and the loading port cooperates with the conveying device.

[0017] Preferably, the material handling mechanism also includes four suction cups, four symmetrically arranged pull rods are slidably connected to the circular plate, the suction cups are fixedly connected to the corresponding pull rods, a circular pad is fixedly installed on the top of the placement table, and the suction cups and the circular pad cooperate with each other.

[0018] The arrangement of four suction cups can absorb and carry the heated material sheet on the conveying device, and the arrangement of the paper-shaped pad cooperates with the suction cups to press and position the material sheet.

[0019] Preferably, a stopper is fixedly mounted on the pull rod, a buffer spring is fixedly mounted on the top of the stopper, the top of the buffer spring is fixedly connected to the bottom of the circular plate, and a baffle is fixedly mounted on the top of the pull rod.

[0020] By setting the stopper and the buffer spring, the suction cup can be buffered, so that when the circular plate is pressed downward, a good pushing and pressing effect can be achieved.

[0021] Preferably, the heating mechanism also includes a plurality of positioning rods, which are slidably mounted on the positioning plate, the positioning plate is fixedly connected to the corresponding heating plate, and the top of the positioning plate is rotatably connected to a plurality of rotating plates, which are threadedly connected to the corresponding positioning rods.

[0022] The cross-section of the positioning rod is fan-shaped, so that it can slide up and down with the positioning plate and limit the positioning rod laterally. At the same time, the rotating plate is connected to the positioning rod through a thread, and the rotating plate is connected to the positioning plate through rotation. The height of the positioning rod can be adjusted, and then the height of different heating plates can be adjusted to adapt to different degrees of heating operations at different positions of the material plate.

[0023] Preferably, the front side of the shell is rotatably connected to four support rods, one end of the four support rods is rotatably connected to the same fixed plate, the fixed plate is fixedly connected to the positioning plate, and a top block is installed on the front side of the shell, and the top block and the fixed plate cooperate with each other.

[0024] By means of the rotational connection between the four support rods, the fixed plate and the shell, the angle of the fixed plate can be limited, thereby keeping the positioning plate parallel to the conveying device. The setting of the top block can facilitate the pushing of the fixed plate, thereby maintaining a certain distance between the fixed plate and the shell.

[0025] Preferably, a wedge block is fixedly mounted on one side of the fixing plate, and a same push rod is fixedly mounted on the tops of the two mounting plates, and the push rod cooperates with the wedge block.

[0026] Through the cooperation between the wedge block and the push rod, the two mounting plates can push the fixing plate and the positioning plate upward when they are moved out of the shell, thereby facilitating the transportation of the material plates on the conveying device.

[0027] Preferably, the stamping forming mechanism also includes four return springs, four symmetrically arranged sliding rods are fixedly installed on the top of the piston plate, the sliding rods are slidably connected to the stamping upper die, the return springs are sleeved on the corresponding sliding rods, and the top ends of the four sliding rods are fixedly installed with the same top plate, and the return springs are located between the top plate and the stamping upper die.

[0028] Through the sliding connection between the slide rod and the stamping upper die, the piston plate can be limited. At the same time, under the action of the reset spring, the stamping upper die can be easily reset by top pressure. The setting of the top plate can facilitate the reset spring to push and act on the stamping upper die.

[0029] Preferably, the bottom of the placement plate is fixed to a buffer box, a plurality of air extraction holes are provided at the bottom of the lower mold, the air extraction holes are interconnected with the buffer box, and an air extraction pump is installed at the bottom of the buffer box.

[0030] The vacuum pump evacuates the interior of the lower mold through the buffer box and the vacuum holes. At the same time, the buffer box can connect multiple vacuum holes, so that the air pressure in each vacuum hole acting on the lower mold is consistent, thereby forming vacuum forming in the lower mold.

[0031] Preferably, two fixing rods are fixedly installed at the bottom of the top plate, and square scrapers are fixedly installed at the bottom ends of the two fixing rods. The square scrapers are slidably connected to the stamping upper die.

[0032] The moving top plate pushes the square scraper to move through the fixed rod, so that the material plate outside the lower mold can be cut, so that the waste can be automatically cut off.

[0033] Preferably, an infrared detector is installed on one side of the positioning plate, and the infrared detector cooperates with the conveying device.

[0034] The setting of the infrared detector can scan and identify the material plate on the conveyor, so as to control the conveyor to stop running through the controller and continue the heating operation.

[0035] In summary, the technical effects and advantages of the present invention are as follows:

[0036] By setting up multiple heating plates, and the sliding connection between the positioning rod and the positioning plate, and the threaded connection between the rotating plate and the positioning rod, the rotating plate can adjust the height of the heating plate through the positioning rod, thereby being able to heat different positions of the material plate at different temperatures.

[0037] Through the action of four suction cups and the return pad, and driven by the trackless cylinder, the material sheet can be automatically loaded through the suction cup, and can be pressed into position at the same time, so that the material sheet can be tightened and limited during the forming operation to prevent folding.

[0038] Through the setting of the piston plate and the stamping upper die, and the action of the vacuum pump and multiple vacuum holes on the lower die, the material sheet can be squeezed and vacuum operated during molding, thereby increasing the molding speed and fitting the mold more accurately, thereby improving the molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0041] Figure 3 It is a rear view structural schematic diagram of the present invention;

[0042] Figure 4 This is a schematic diagram of the internal structure of the housing of the present invention;

[0043] Figure 5 It is a schematic diagram of the cross-sectional structure of the placement table of the present invention;

[0044] Figure 6 It is a schematic diagram of the heating mechanism structure of the present invention;

[0045] Figure 7 It is a schematic diagram of the structure of the stamping forming mechanism of the present invention;

[0046] Figure 8 This is a schematic diagram of the mounting plate and trackless cylinder structure of the present invention;

[0047] Fig. 9 It is a schematic cross-sectional structure diagram of the lower mold and the buffer box of the present invention.

[0048] In the figure:

[0049] 1. Shell; 2. Placement table; 3. Placement slot; 4. Placement plate; 5. Material handling mechanism; 51. Trackless cylinder; 52. Mounting plate; 53. Lifting cylinder; 54. Reciprocating plate; 55. Pull rod; 56. Suction cup; 57. Reciprocating pad; 58. Stopper; 59. Buffer spring; 6. Heating mechanism; 61. Positioning plate; 62. Heating plate; 63. Positioning rod; 64. Rotating plate; 65. Fixed plate; 66. Support rod; 67. Top block; 68 , wedge block; 7, stamping forming mechanism; 71, stamping upper die; 72, piston plate; 73, stamping cylinder; 74, sliding rod; 75, return spring; 76, top plate; 8, discharge port; 9, loading port; 10, conveying device; 11, infrared detector; 12, fixing rod; 13, square scraper; 14, lifting cylinder; 15, lower die; 16, buffer box; 17, vacuum pump; 18, vacuum hole; 19, top frame; 20, controller. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all the embodiments.

[0051] Reference Figure 1-9 , a direct hot forming process of a sheet material, comprising the following steps:

[0052] S1: Prepare the sheet materials, and the specifications of the sheet materials are consistent, and use the conveyor device to load the materials;

[0053] S2: The transferred material is heated by a heating device, and the temperature is controlled by a control device;

[0054] S3: transport and load the material, move the heated material sheet to the mold position, and press and position it;

[0055] S4: The sheet is extruded and formed by a pneumatic mechanism, and finally the edges and corners are cut by a cutter;

[0056] A direct hot forming processing device for a material plate comprises a shell 1, a placing table 2 is installed on the inner wall of the shell 1, a placing groove 3 is opened on the top of the placing table 2, a placing plate 4 is slidably connected to the inner wall of the placing groove 3, a lower mold 15 is installed on the placing plate 4, four lifting cylinders 14 are installed on the bottom inner wall of the placing groove 3, pistons of the lifting cylinders 14 are fixedly connected to the placing plate 4, and a top frame 19 is installed on the top of the placing table 2;

[0057] The material handling mechanism 5 includes two trackless cylinders 51, which are fixedly mounted on the top of the placing table 2. A mounting plate 52 is mounted on the piston of the trackless cylinder 51. Two lifting cylinders 53 are fixedly mounted on the sides of the two mounting plates 52 close to each other. The pistons of the four lifting cylinders 53 are mounted with the same circular plate 54.

[0058] The heating mechanism 6 comprises a positioning plate 61, the positioning plate 61 is mounted on the front side of the housing 1, and a plurality of heating plates 62 are mounted on the bottom of the positioning plate 61;

[0059] The stamping forming mechanism 7 includes a stamping upper die 71. A stamping cylinder 73 is installed at the bottom of the top frame 19. The stamping upper die 71 is slidably installed on the piston of the stamping cylinder 73. A piston plate 72 is slidably connected to the inner wall of the stamping upper die 71. The piston plate 72 is fixedly connected to the piston of the stamping cylinder 73.

[0060] The conveying device 10 is arranged on the front side of the shell 1 and cooperates with the heating plate 62. A controller 20 is installed on the front side of the shell 1, and the controller 20 is connected to the conveying device 10. The front and rear sides of the shell 1 are respectively provided with a loading port 9 and a discharging port 8, and the loading port 9 cooperates with the conveying device 10.

[0061] Reference Figure 4 and Figure 5 The material handling mechanism 5 also includes four suction cups 56, and four symmetrically arranged pull rods 55 are slidably connected to the circular plate 54. The suction cups 56 are fixedly connected to the corresponding pull rods 55, and a circular pad 57 is fixedly installed on the top of the placing table 2. The suction cups 56 and the circular pad 57 cooperate with each other. A stopper 58 is fixedly installed on the pull rod 55, and a buffer spring 59 is fixedly installed on the top of the stopper 58. The top of the buffer spring 59 is fixedly connected to the bottom of the circular plate 54, and a baffle is fixedly installed on the top of the pull rod 55. The arrangement of the four suction cups 56 can adsorb and transport the heated material sheet on the conveying device 10, and through the arrangement of the circular pad 57, it cooperates with the suction cups 56, so that the material sheet can be pressed and positioned. Through the arrangement of the stopper 58 and the buffer spring 59, it is convenient to buffer the suction cups 56, so that when the circular plate 54 is pressed downward, it can play a good pushing and pressing effect.

[0062] Reference Figure 6 The heating mechanism 6 also includes a plurality of positioning rods 63, which are slidably mounted on the positioning plate 61. The positioning plate 61 is fixedly connected to the corresponding heating plate 62, and a plurality of rotating plates 64 are rotatably connected to the top of the positioning plate 61. The rotating plates 64 are threadedly connected to the corresponding positioning rods 63. The cross-section of the positioning rods 63 is fan-shaped, so that an up and down sliding movement is formed between the positioning plate 61, and the positioning rods 63 are laterally limited. At the same time, the rotating plates 64 are threadedly connected to the positioning rods 63, and the rotating plates 64 are rotatably connected to the positioning plate 61, so that the height of the positioning rods 63 can be adjusted, and then the height of different heating plates 62 can be adjusted, so as to adapt to different degrees of heating operations on different positions of the material plate.

[0063] Reference Figure 6 The front side of the shell 1 is rotatably connected with four support rods 66, and one end of the four support rods 66 is rotatably connected with the same fixed plate 65, which is fixedly connected to the positioning plate 61, and a top block 67 is installed on the front side of the shell 1, and the top block 67 cooperates with the fixed plate 65. A wedge block 68 is fixedly installed on one side of the fixed plate 65, and the same push rod is fixedly installed on the top of the two mounting plates 52, and the push rod cooperates with the wedge block 68. Through the rotational connection of the four support rods 66, the fixed plate 65 and the shell 1, the angle of the fixed plate 65 can be limited, so that the positioning plate 61 is kept parallel to the conveying device 10. The setting of the top block 67 can facilitate the pushing of the fixed plate 65, so that a certain distance is maintained between the fixed plate 65 and the shell 1. Through the cooperation between the wedge block 68 and the push rod, the two mounting plates 52 can push the fixed plate 65 and the positioning plate 61 upward when moving out of the shell 1, so as to facilitate the transportation of the material plate on the conveying device 10.

[0064] Reference Figure 7The stamping forming mechanism 7 also includes four return springs 75. Four symmetrically arranged slide bars 74 are fixedly installed on the top of the piston plate 72. The slide bars 74 are slidably connected to the stamping upper die 71. The return springs 75 are sleeved on the corresponding slide bars 74. The tops of the four slide bars 74 are fixedly installed with the same top plate 76. The return springs 75 are located between the top plate 76 and the stamping upper die 71. The bottom of the placement plate 4 is fixed with a buffer box 16. The bottom of the lower die 15 is provided with a plurality of air extraction holes 18. The air extraction holes 18 are connected to the buffer box 16. The bottom of the buffer box 16 is provided with an air extraction pump 17. The air extraction pump 17 is connected to the bottom of the buffer box 16. The buffer box 16 and the exhaust holes 18 exhaust air from the inside of the lower mold 15. At the same time, through the action of the buffer box 16, multiple exhaust holes 18 can be connected, so that the air pressure acting on the lower mold 15 in each exhaust hole 18 is consistent, so that vacuum forming is formed in the lower mold 15. The sliding connection between the slide rod 74 and the stamping upper mold 71 can limit the piston plate 72. At the same time, under the action of the reset spring 75, the stamping upper mold 71 can be easily reset by pressing. The setting of the top plate 76 can facilitate the pushing of the reset spring 75, which acts on the stamping upper mold 71.

[0065] Reference Figure 7 Two fixed rods 12 are fixedly installed at the bottom of the top plate 76, and square scrapers 13 are fixedly installed at the bottom ends of the two fixed rods 12. The square scrapers 13 are slidably connected to the stamping upper mold 71. The moving top plate 76 pushes the square scrapers 13 to move through the fixed rods 12, thereby being able to cut the material plate outside the lower mold 15, thereby automatically shearing off waste materials.

[0066] Reference Figure 6 An infrared detector 11 is installed on one side of the positioning plate 61. The infrared detector 11 cooperates with the conveying device 10. The setting of the infrared detector 11 can scan and identify the material plate on the conveying device 10, so as to control the conveying device 10 to stop running through the controller 20, and then continue the heating operation.

[0067] Working principle: During operation, the material sheet is conveyed and loaded through the conveying device 10. When it moves to the bottom of the positioning plate 61, the material sheet on the conveying device 10 can be scanned and identified through the setting of the infrared detector 11, so that the conveying device 10 is controlled to stop operation through the controller 20. At this time, the heating plate 62 is energized, and multiple heating plates 62 are used to heat multiple positions of the material sheet by thermal radiation. At the same time, the rotating plate 64 is connected to the positioning rod 63 through a thread, and the rotating plate 64 is connected to the positioning plate 61 in rotation, so that the height of the positioning rod 63 can be adjusted, and then the height of different heating plates 62 can be adjusted to adapt to different degrees of heating operations at different positions of the material sheet, and the rotating connection with the fixed plate 65 and the shell 1 through four support rods 66 , so that the angle of the fixing plate 65 can be limited, so that the positioning plate 61 is kept parallel to the conveying device 10. The setting of the top block 67 can facilitate the pushing of the fixing plate 65, so that a certain distance is maintained between the fixing plate 65 and the shell 1. When the heated material plate needs to be transported, the switch of the trackless cylinder 51 is started, and the piston of the trackless cylinder 51 drives the circular plate 54 on the mounting plate 52 to move out of the shell 1 through the loading port 9. When the mounting plate 52 moves out of the shell 1, the wedge block 68 and the push rod cooperate with each other to push the fixing plate 65 and the positioning plate 61 upward, so that the positioning plate 61 moves to the top of the circular plate 54, and then the switch of the lifting cylinder 53 is started, and the piston of the lifting cylinder 53 drives the circular plate 54 to The material plate 54 is moved upward by the lifting cylinder 53, and the material plate on the suction cup 56 is lifted upward by the baffle plate, so as to facilitate the transportation of the material plate on the conveying device 10. When the material plate moves to the position of the circular pad 57, the lifting cylinder 14 switch is started by the controller 20, and the piston of the lifting cylinder 14 drives the placing plate 4 to move upward, thereby driving the lower mold 15 to move upward, so that the material plate is pressed against the lower mold 15, and then the lifting cylinder 14 switch is started by the controller 20. The piston of the lifting cylinder 14 drives the placing plate 4 to move upward, thereby driving the lower mold 15 to move upward, so that the material plate is pressed against the lower mold 15, and then the lifting cylinder 14 switch is started. The switch of the stamping cylinder 73 is activated, and the piston of the stamping cylinder 73 drives the piston plate 72 to move downward, and the piston plate 72 drives the entire stamping upper mold 71 to move onto the lower mold 15, thereby sealing the lower mold 15. When the piston plate 72 continues to move downward, the piston plate 72 squeezes the air on the material plate and acts on the material plate, so that the material plate is deformed quickly. At the same time, the vacuum pump 17 below exhausts air from the inside of the lower mold 15 through the buffer box 16 and the vacuum hole 18. At the same time, through the action of the buffer box 16, multiple vacuum holes 18 can be connected, so that the air pressure in each vacuum hole 18 acting on the lower mold 15 is consistent, so that vacuum forming is formed in the lower mold 15. After the material plate is formed, the vacuum pump 17 acts in the opposite direction.The buffer box 16 and the air extraction hole 18 are inflated to eject the sheet in the lower mold 15. When the piston plate 72 moves downward, the piston plate 72 drives the top plate 76 to move downward through the slide rod 74. The moving top plate 76 pushes the square scraper 13 to move through the fixed rod 12, thereby cutting the sheet outside the lower mold 15, thereby automatically shearing off the waste.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A direct hot forming process for a sheet material, characterized in that: The following steps are involved: S1: Prepare the sheet materials, and the specifications of the sheet materials are consistent, and use the conveyor device to load the materials; S2: The transferred material is heated by a heating device, and the temperature is controlled by a control device; S3: transport and load the material, move the heated material sheet to the mold position, and press and position it; S4: The sheet is extruded and formed by a pneumatic mechanism, and finally the edges and corners are cut by a cutter; A direct hot forming processing device for a material plate, characterized in that it comprises a shell (1), a placing table (2) is installed on the inner wall of the shell (1), a placing groove (3) is opened on the top of the placing table (2), a placing plate (4) is slidably connected to the inner wall of the placing groove (3), a lower mold (15) is installed on the placing plate (4), four lifting cylinders (14) are installed on the bottom inner wall of the placing groove (3), the pistons of the lifting cylinders (14) are fixedly connected to the placing plate (4), and a top frame (19) is installed on the top of the placing table (2); The material handling mechanism (5) comprises two trackless cylinders (51), the two trackless cylinders (51) are fixedly mounted on the top of the placement platform (2), a mounting plate (52) is mounted on the piston of the trackless cylinder (51), two lifting cylinders (53) are fixedly mounted on the sides of the two mounting plates (52) close to each other, and the pistons of the four lifting cylinders (53) are mounted with the same circular plate (54); A heating mechanism (6) comprising a positioning plate (61), wherein the positioning plate (61) is mounted on the front side of the housing (1), and a plurality of heating plates (62) are mounted on the bottom of the positioning plate (61); The stamping forming mechanism (7) comprises a stamping upper die (71), a stamping cylinder (73) is installed at the bottom of the top frame (19), the stamping upper die (71) is slidably installed on the piston of the stamping cylinder (73), a piston plate (72) is slidably connected to the inner wall of the stamping upper die (71), and the piston plate (72) is fixedly connected to the piston of the stamping cylinder (73); The conveying device (10) is arranged on the front side of the shell (1) and cooperates with the heating plate (62). A controller (20) is installed on the front side of the shell (1), and the controller (20) is connected to the conveying device (10). The front side and the rear side of the shell (1) are respectively provided with a loading port (9) and a discharging port (8), and the loading port (9) and the conveying device (10) cooperate with each other.

2. A direct hot forming process of a sheet material according to claim 1, characterized in that: The material handling mechanism (5) further comprises four suction cups (56), four symmetrically arranged pull rods (55) are slidably connected to the circular plate (54), the suction cups (56) are fixedly connected to the corresponding pull rods (55), a circular pad (57) is fixedly installed on the top of the placing table (2), and the suction cups (56) and the circular pad (57) cooperate with each other.

3. A direct hot forming process of a sheet material according to claim 2, characterized in that: A stopper (58) is fixedly mounted on the pull rod (55), a buffer spring (59) is fixedly mounted on the top of the stopper (58), the top end of the buffer spring (59) is fixedly connected to the bottom of the circular plate (54), and a baffle is fixedly mounted on the top end of the pull rod (55).

4. A direct hot forming process for a sheet material according to claim 1, characterized in that: The heating mechanism (6) further comprises a plurality of positioning rods (63), the positioning rods (63) being slidably mounted on the positioning plate (61), the positioning plate (61) being fixedly connected to the corresponding heating plate (62), and a plurality of rotating plates (64) being rotatably connected to the top of the positioning plate (61), and the rotating plates (64) being threadedly connected to the corresponding positioning rods (63).

5. The direct hot forming process of a sheet material according to claim 1, characterized in that: The front side of the shell (1) is rotatably connected to four support rods (66), one end of the four support rods (66) is rotatably connected to the same fixing plate (65), the fixing plate (65) is fixedly connected to the positioning plate (61), and a top block (67) is installed on the front side of the shell (1), and the top block (67) and the fixing plate (65) cooperate with each other.

6. A direct hot forming process for a sheet material according to claim 5, characterized in that: A wedge block (68) is fixedly mounted on one side of the fixing plate (65), and a same push rod is fixedly mounted on the tops of the two mounting plates (52), and the push rod and the wedge block (68) cooperate with each other.

7. A direct hot forming process for a sheet material according to claim 1, characterized in that: The stamping forming mechanism (7) also includes four return springs (75). Four symmetrically arranged sliding rods (74) are fixedly installed on the top of the piston plate (72). The sliding rods (74) are slidably connected to the stamping upper die (71). The return springs (75) are sleeved on the corresponding sliding rods (74). The top ends of the four sliding rods (74) are fixedly installed with the same top plate (76). The return springs (75) are located between the top plate (76) and the stamping upper die (71).

8. A direct hot forming process for a sheet material according to claim 1, characterized in that: The bottom of the placement plate (4) is fixed to a buffer box (16), a plurality of air extraction holes (18) are provided at the bottom of the lower mold (15), the air extraction holes (18) are communicated with the buffer box (16), and an air extraction pump (17) is installed at the bottom of the buffer box (16).

9. A direct hot forming process for a sheet material according to claim 7, characterized in that: Two fixing rods (12) are fixedly mounted on the bottom of the top plate (76), and square scrapers (13) are fixedly mounted on the bottom ends of the two fixing rods (12), and the square scrapers (13) are slidably connected to the stamping upper die (71).

10. A direct hot forming process for a sheet material according to claim 1, characterized in that: An infrared detector (11) is installed on one side of the positioning plate (61), and the infrared detector (11) cooperates with the conveying device (10).

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