Press-fit forming device and press-fit forming method for aluminum foil meal box production

Abstract

The invention belongs to the technical field of aluminum foil pressing, particularly relates to a pressing forming device and method for aluminum foil meal box production, and provides the following scheme that the pressing forming device comprises a base and a portal frame, and the portal frame is fixedly connected to the top of the base. A hydraulic rod is fixedly connected to the top of a portal frame, an edge cutting mechanism is fixedly connected to the bottom of the hydraulic rod, an upper mold is hung to the bottom of the edge cutting mechanism, a containing cavity is formed in the bottom of the upper mold, a mounting base is fixedly connected to the middle of the inner wall of the top of the containing cavity, and rotating supports are rotationally connected to the two sides of the mounting base; a same tension spring is fixedly connected between the two rotating supports, the bottoms of the two rotating supports are rotationally connected with side pressing rollers, the distance between rotating shafts of the two rotating supports is smaller than that between rotating shafts of the two side pressing rollers, and a driving roller is rotationally connected to one side of the top of the base. The side, away from the driving roller, of the base is rotationally connected with a driven roller.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum foil pressing, and in particular to a pressing molding device and a pressing molding method for producing an aluminum foil lunch box. Background Art

[0002] Aluminum foil has outstanding barrier properties. Under the premise of sufficient thickness, it can basically completely block gas and moisture. Therefore, aluminum foil is a commonly used barrier material in plastic flexible packaging materials. Aluminum foil has a series of advantages such as light weight, airtightness and good wrapping properties.

[0003] Existing aluminum foil lunch boxes usually use aluminum ingots as raw materials, which are cold-rolled or hot-rolled into aluminum foil mother rolls with uniform thickness, smooth surface, no pinholes, no dust particles, and no odor, and are made through a production process of mold pressing and molding. In the process of producing aluminum foil lunch boxes in the prior art, due to the low density and good ductility of aluminum foil, the aluminum foil is often not fully spread out in the mold, causing the pressed product to be deformed and wrinkled. It is urgent to design a pressing and molding device and a pressing and molding method for the production of aluminum foil lunch boxes to solve the above problems. Summary of the invention

[0004] Based on the technical problem that the aluminum foil cannot be well unfolded in the mold in the existing pressing and molding device and pressing and molding method for producing aluminum foil lunch boxes, thereby affecting the product quality, the present invention proposes a pressing and molding device and pressing and molding method for producing aluminum foil lunch boxes.

[0005] The present invention proposes a pressing and forming device and a pressing and forming method for producing aluminum foil lunch boxes, which include a base and a gantry, wherein the gantry is fixedly connected to the top of the base, the top of the gantry is fixedly connected to a hydraulic rod, the bottom of the hydraulic rod is fixedly connected to a trimming mechanism, the bottom of the trimming mechanism is hung with an upper mold, a receiving cavity is provided at the bottom of the upper mold, a mounting seat is fixedly connected to the middle position of the inner wall at the top of the receiving cavity, both sides of the mounting seat are rotatably connected to rotating brackets, the same tension spring is fixedly connected between the two rotating brackets, and the bottoms of the two rotating brackets are rotatably connected to side pressure rollers, and the spacing between the rotating axes of the two rotating brackets is smaller than the spacing between the two side pressure rollers. The spacing between the rotating axes, one side of the top of the base is rotatably connected to the active roller, the side of the top of the base away from the active roller is rotatably connected to the driven roller, the outer walls of the driven roller and the active roller are wrapped with the same aluminum foil, the side of the top of the base close to the active roller is fixedly connected to the motor, the output end of the motor is transmission-connected to the roller shaft of the active roller, a lower mold adapted to the upper mold is provided on the top of the base, the aluminum foil is provided between the upper mold and the lower mold, sockets are provided on both sides of the bottom of the lower mold, a push rod motor is fixedly connected to one side of the bottom of the gantry, one end of the push rod motor is fixedly connected to the outer wall of the lower mold, and a demolding shovel plate adapted to the socket is fixedly connected to the top of the base.

[0006] Preferably, the trimming mechanism includes a push plate, a trimming mold, a cutting knife and a buffer spring, the push plate is fixedly connected to the bottom end of the hydraulic rod, the trimming mold is fixedly connected to the bottom of the push plate, the cutting knife is fixedly connected to the bottom of the trimming mold, the cutting knife and the trimming mold are both arranged in an annular shape, and the buffer spring is fixedly connected between the bottom of the push plate and the outer wall of the top of the upper mold.

[0007] Preferably, the four corners of the push plate are connected with hanging rods, the tops of the four hanging rods are fixedly connected to the limiting blocks, the bottoms of the four hanging rods are respectively fixedly connected to the four corners of the top outer wall of the upper mold, and the tops of the four hanging rods are sleeved with buffer sleeves, which are respectively located between the four limiting blocks and the push plate, and the buffer sleeves are made of rubber.

[0008] Preferably, the top of the base close to the active roller is fixedly connected to a first roller frame, and the top of the other side of the base is fixedly connected to a second roller frame. The active roller is rotatably connected to the top of the first roller frame through a bearing, and the driven roller is rotatably connected to the top of the second roller frame through a bearing.

[0009] Preferably, a guide slope is provided on the top of the demoulding shovel plate close to the lower mold, and a demoulding shovel head is fixedly connected to one end of the demoulding shovel plate close to the lower mold, and the demoulding shovel head is made of rubber.

[0010] Preferably, two shovel plate frames are fixedly connected to the top of the base, and the side of the demoulding shovel plate away from the lower mold is fixedly connected to the inside of the two shovel plate frames by bolts.

[0011] Preferably, the exteriors of the two side pressure rollers are both sleeved with rubber sleeves.

[0012] Preferably, a through groove is provided in the middle of the base, the inner wall of the through groove is rotatably connected to parallel distributed supporting rollers through bearings, and the outer wall of the bottom of the lower mold is in contact with the top outer wall of the supporting rollers.

[0013] Preferably, the top of the gantry close to the push rod motor is fixedly connected with a bellows, the bottom of the bellows is fixedly connected with a negative pressure suction cup, the top of the bellows is fixedly connected with an air pipe joint, and both the negative pressure suction cup and the air pipe joint are connected to the bellows.

[0014] Preferably, the hydraulic rod pushes the upper mold downward to press the aluminum foil into the lower mold for forming. After the bottoms of the two side pressure rollers are stressed, they roll in the direction away from each other, the angle between the two rotating brackets increases, the tension spring is stretched by the force, and the side pressure rollers are always pressed on the top of the aluminum foil during the movement, stretching and flattening the part of the aluminum foil that is about to be pressed into the lower mold, cutting the aluminum foil during the pressing process of the cutter, separating the product part of the aluminum foil from the residual part, and the edge pressing mold presses the product part of the aluminum foil. The buffer spring is compressed before the edge pressing mold contacts the aluminum foil, and plays a buffering role before pressing, so that the edge pressing mold fully presses the product part of the aluminum foil, and the cutter fully cuts the aluminum foil. When the push plate and the upper mold produce relative movement, the four suspension rods play a guiding role, so that the movement can only occur in the vertical direction, to prevent the upper mold from being offset due to the expansion and contraction process of the compression spring, and the limit block plays a role in limiting the stroke of the relative displacement of the suspension rod and the push plate, and the buffer sleeve plays a role in buffering collision between the limit block and the push plate. After the pressing is completed, the hydraulic rod drives the upper mold to reset, the tension spring restores the elastic potential energy, and then drives the rotating bracket and the side pressure roller to reset. After the reset is completed, the push rod motor pulls the lower mold horizontally to make the lower mold leave the bottom of the upper mold, and the demoulding shovel plate is inserted into the socket. The demoulding shovel head is first inserted into the bottom of the product, and the product is gradually lifted upward along the guide slope, and the product fitted in the inner wall of the lower mold is lifted upward to realize the automatic separation of the product and the lower mold. The bellows is connected to the pneumatic control system through the air pipe joint. By moving the bellows, the negative pressure suction cup is brought close to the product for adsorption, and the product is taken out of the lower mold. During the pressing process of the upper mold and the lower mold, the supporting roller plays a supporting role at the bottom of the lower mold and reduces the wear between the outer wall of the bottom of the lower mold and the base. After the unloading is completed, the push rod motor pushes the lower mold to reset, and the motor drives the active roller to rotate, and the remaining part of the rolled aluminum foil is wound. The driven roller is driven by the aluminum foil to rotate synchronously, and the aluminum foil wrapped around the outer wall of the driven roller is released.

[0015] Compared with the prior art, the present invention provides a pressing and forming device and a pressing and forming method for producing an aluminum foil lunch box, which have the following beneficial effects:

[0016] 1. A pressing and forming device and pressing and forming method for producing aluminum foil lunch boxes are provided. The side pressing roller first contacts the aluminum foil during the pressing process. After the bottom of the aluminum foil contacts the inner wall of the bottom of the lower mold, the two side pressing rollers are deflected in the direction away from each other by the pressure until they are completely immersed in the receiving cavity. The two rotating brackets rotate synchronously with the two side pressing rollers respectively. The tension spring is stretched by the force. The side pressing roller is always pressed on the top of the aluminum foil during the movement, and the part of the aluminum foil that is about to be pressed into the lower mold is stretched and flattened to prevent the product from being formed. After the upper mold is reset, the tension spring pulls the rotating bracket and the side pressure roller to reset. After the reset is completed, the push rod motor pulls the lower mold horizontally to deviate from the upper mold and the bottom of the aluminum foil to remove the product from it. During this process, the demoulding shovel is passively inserted into the socket at the bottom of the side of the lower mold, and the product fitted in the inner wall of the lower mold is lifted up, realizing the automatic separation of the product and the lower mold, and improving the unloading rate. After the unloading is completed, the push rod motor pushes the lower mold to reset.

[0017] 2. A pressing and forming device and pressing and forming method for producing aluminum foil lunch boxes, by setting a pressing die, a cutter, a buffer spring, a suspension rod and a limit block, after the upper die presses the aluminum foil into the lower die, the cutter cuts the aluminum foil downwards to complete the separation of the product part and the residual part of the aluminum foil, the pressing die presses the product part of the aluminum foil, the buffer spring is compressed before the pressing die contacts the aluminum foil, and plays a buffering role before pressing, so that the pressing die fully presses the product part of the aluminum foil, and the cutter fully cuts the aluminum foil, avoiding the production of defective products due to insufficient pressing and incomplete separation before edge shaping, when the push plate and the upper die produce relative motion, the four suspension rods play a guiding role, so that the motion can only occur in the vertical direction, preventing the upper die from being offset due to the expansion and contraction process of the compression spring, and the limit block plays a role in limiting the stroke of the relative displacement of the suspension rod and the push plate.

[0018] 3. A compression molding device and compression molding method for producing aluminum foil lunch boxes, by providing an air pipe joint, a bellows and a negative pressure suction cup, the bellows is connected to a pneumatic control system through the air pipe joint. When taking out the product in the lower mold, the staff only needs to move the bellows and bring the negative pressure suction cup close to the product to take the product out of the lower mold, thereby improving the efficiency of product retrieval and reducing the contact between the staff and the product during the retrieval process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a pressing and forming device and pressing and forming method for producing an aluminum foil lunch box proposed by the present invention;

[0020] Figure 2 A top view of a pressing and forming device and pressing and forming method for producing an aluminum foil lunch box proposed by the present invention;

[0021] Figure 3 It is a side structural schematic diagram of a pressing and forming device and pressing and forming method for producing an aluminum foil lunch box proposed by the present invention;

[0022] Figure 4 A schematic diagram of the structure of an upper mold and a lower mold of a pressing molding device and a pressing molding method for producing an aluminum foil lunch box proposed by the present invention;

[0023] Figure 5 A schematic diagram of the structure of a through groove and a supporting roller of a pressing and forming device and a pressing and forming method for producing an aluminum foil lunch box proposed by the present invention;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of an upper mold of a pressing molding device and pressing molding method for producing an aluminum foil lunch box proposed by the present invention;

[0025] Figure 7 A schematic diagram of the structure of a pressing die and a cutting knife of a pressing forming device and a pressing forming method for producing an aluminum foil lunch box proposed by the present invention;

[0026] Figure 8 A schematic diagram of the side pressure roller structure of a pressure forming device and a pressure forming method for producing an aluminum foil lunch box proposed by the present invention;

[0027] Fig. 9 The present invention provides a schematic diagram of a demoulding shovel structure for a pressing molding device and a pressing molding method for producing an aluminum foil lunch box.

[0028] In the figure: 1. base; 2. gantry; 3. hydraulic rod; 4. push plate; 5. edge pressing mold; 6. cutter; 7. upper mold; 8. lower mold; 9. aluminum foil; 10. active roller; 11. first roller frame; 12. motor; 13. second roller frame; 14. driven roller; 15. socket; 16. demoulding shovel plate; 17. side pressure roller; 18. push rod motor; 19. negative pressure suction cup; 20. bellows; 21. air pipe joint; 22. limit block; 23. rubber sleeve; 24. rotating bracket; 25. buffer spring; 26. receiving chamber; 27. tension spring; 28. mounting seat; 29. ​​through groove; 30. supporting roller; 31. buffer sleeve; 32. suspension rod; 33. demoulding shovel head; 34. guide slope; 35. shovel frame. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1-9 A pressing and forming device and pressing and forming method for producing aluminum foil lunch boxes, comprising a base 1 and a gantry 2, the gantry 2 is fixedly connected to the top of the base 1, the top of the gantry 2 is fixedly connected to a hydraulic rod 3, the bottom of the hydraulic rod 3 is fixedly connected to a trimming mechanism, the bottom of the trimming mechanism is hung with an upper mold 7, the bottom of the upper mold 7 is provided with a receiving cavity 26, the middle position of the top inner wall of the receiving cavity 26 is fixedly connected to a mounting seat 28, both sides of the mounting seat 28 are rotatably connected to rotating brackets 24, the same tension spring 27 is fixedly connected between the two rotating brackets 24, and the bottoms of the two rotating brackets 24 are rotatably connected to side pressure rollers 17, and the spacing between the rotating axes of the two rotating brackets 24 is smaller than the spacing between the rotating axes of the two side pressure rollers 17 A driving roller 10 is rotatably connected to one side of the top of the base 1, and a driven roller 14 is rotatably connected to the side of the top of the base 1 away from the driving roller 10. The outer walls of the driven roller 14 and the driving roller 10 are wrapped with the same aluminum foil 9. A motor 12 is fixedly connected to the side of the top of the base 1 close to the driving roller 10, and the output end of the motor 12 is transmission-connected to the roller shaft of the driving roller 10. A lower mold 8 adapted to the upper mold 7 is provided on the top of the base 1, and the aluminum foil 9 is provided between the upper mold 7 and the lower mold 8. Sockets 15 are provided on both sides of the bottom of the lower mold 8. A push rod motor 18 is fixedly connected to one side of the bottom of the gantry 2, and one end of the push rod motor 18 is fixedly connected to the outer wall of the lower mold 8. A demolding shovel plate 16 adapted to the socket 15 is fixedly connected to the top of the base 1.

[0031] In the present invention, the trimming mechanism includes a push plate 4, a trimming die 5, a cutter 6 and a buffer spring 25. The push plate 4 is fixedly connected to the bottom end of the hydraulic rod 3, the trimming die 5 is fixedly connected to the bottom of the push plate 4, the cutter 6 is fixedly connected to the bottom of the trimming die 5, the cutter 6 and the trimming die 5 are both arranged in a ring shape, and the buffer spring 25 is fixedly connected between the bottom of the push plate 4 and the outer wall of the top of the upper die 7. After the upper die 7 presses the aluminum foil 9 into the lower die 8, the cutter 6 cuts the aluminum foil 9 downward to complete the separation of the product part and the residual part of the aluminum foil 9, and the trimming die 5 trims the product part of the aluminum foil 9. The buffer spring 25 is compressed by force before the trimming die 5 contacts the aluminum foil 9.

[0032] In the present invention, the four corners of the push plate 4 are all connected with hanging rods 32, the tops of the four hanging rods 32 are all fixedly connected to the limiting blocks 22, and the bottoms of the four hanging rods 32 are respectively fixedly connected to the four corners of the outer wall of the top of the upper mold 7. When the push plate 4 and the upper mold 7 produce relative movement, the four hanging rods 32 play a guiding role so that the movement can only occur in the vertical direction. The tops of the four hanging rods 32 are all sleeved with buffer sleeves 31, and the four buffer sleeves 31 are respectively located between the four limiting blocks 22 and the push plate 4. The buffer sleeves 31 are made of rubber material, and the buffer sleeves 31 play a role of buffering collision between the limiting blocks 22 and the push plate 4.

[0033] In the present invention, a first roller frame 11 is fixedly connected to the top of the base 1 on one side close to the active roller 10, and a second roller frame 13 is fixedly connected to the top of the other side of the base 1. The active roller 10 is rotatably connected to the top of the first roller frame 11 through a bearing, and the driven roller 14 is rotatably connected to the top of the second roller frame 13 through a bearing. The active roller 10 and the driven roller 14 are respectively installed and fixed by the first roller frame 11 and the second roller frame 13.

[0034] In the present invention, a guide slope 34 is provided on the top of the demoulding shovel plate 16 close to the lower mold 8, and a demoulding shovel head 33 is fixedly connected to the end of the demoulding shovel plate 16 close to the lower mold 8. The demoulding shovel head 33 is made of rubber material. When the demoulding shovel plate 16 is inserted into the socket 15 for demoulding, the demoulding shovel head 33 is first inserted into the bottom of the product, and in the following stroke, the product is gradually lifted upward along the guide slope 34.

[0035] In the present invention, two shovel plate frames 35 are fixedly connected to the top of the base 1, and the side of the demoulding shovel plate 16 away from the lower mold 8 is fixedly connected to the inside of the two shovel plate frames 35 by bolts, and the demoulding shovel plate 16 is bolted to the top of the base 1 through the shovel plate frame 35.

[0036] In the present invention, the outsides of the two side pressure rollers 17 are sleeved with rubber sleeves 23 to prevent the side pressure rollers 17 from scratching the aluminum foil 9 during operation.

[0037] In the present invention, a through groove 29 is opened in the middle of the base 1, and the inner wall of the through groove 29 is rotatably connected to parallel distributed support rollers 30 through bearings. The outer wall of the bottom of the lower mold 8 is in contact with the top outer wall of the support roller 30. During the pressing process of the upper mold 7 and the lower mold 8, the support roller 30 plays a supporting role at the bottom of the lower mold 8.

[0038] In the present invention, a bellows 20 is fixedly connected to the top of the gantry 2 near the push rod motor 18, a negative pressure suction cup 19 is fixedly connected to the bottom of the bellows 20, and an air pipe joint 21 is fixedly connected to the top of the bellows 20. The negative pressure suction cup 19 and the air pipe joint 21 are both connected to the bellows 20, and the bellows 20 is connected to the pneumatic control system through the air pipe joint 21.

[0039] In the present invention, the hydraulic rod 3 pushes the upper mold 7 downward to press the aluminum foil 9 into the lower mold 8 for forming. After the bottoms of the two side pressure rollers 17 are stressed, they roll in the direction away from each other. The angle between the two rotating brackets 24 increases, and the tension spring 27 is stretched under stress. The side pressure rollers 17 are always pressed on the upper part of the aluminum foil 9 during the movement, and the part of the aluminum foil 9 that is about to be pressed into the lower mold 8 is stretched and flattened. The cutter 6 cuts the aluminum foil 9 during the pressing process, and the product part of the aluminum foil 9 is separated from the residual part. The edge pressing mold 5 presses the product part of the aluminum foil 9, and the buffer spring 25 The edge pressing die 5 is compressed before contacting the aluminum foil 9, and plays a buffering role before edge pressing, so that the edge pressing die 5 fully presses the product part of the aluminum foil 9, and the cutter 6 fully cuts the aluminum foil 9. When the push plate 4 and the upper mold 7 produce relative movement, the four suspension rods 32 play a guiding role, so that the movement can only occur in the vertical direction, and prevent the expansion and contraction process of the compression spring 25 from causing the upper mold 7 to deviate. The limit block 22 plays a role in limiting the relative displacement of the suspension rod 32 and the push plate 4. The buffer sleeve 31 plays a role in buffering collision between the limit block 22 and the push plate 4, pressing. After completion, the hydraulic rod 3 drives the upper mold 7 to reset, the tension spring 27 restores the elastic potential energy, and then drives the rotating bracket 24 and the side pressure roller 17 to reset. After the reset is completed, the push rod motor 18 pulls the lower mold 8 horizontally to make the lower mold 8 leave the bottom of the upper mold 7, the demoulding shovel plate 16 is inserted into the socket 15, the demoulding shovel head 33 is first inserted into the bottom of the product, and the product is gradually lifted up along the guide slope 34, and the product fitted in the inner wall of the lower mold 8 is lifted up, so as to realize the automatic separation of the product and the lower mold 8, and the bellows 20 is connected to the pneumatic control through the air pipe joint 21. The control system moves the bellows 20 to bring the negative pressure suction cup 19 close to the product for adsorption, and takes the product out of the lower mold 8. During the pressing process of the upper mold 7 and the lower mold 8, the support roller 30 plays a supporting role at the bottom of the lower mold 8, and at the same time reduces the wear between the outer wall of the bottom of the lower mold 8 and the base 1. After the unloading is completed, the push rod motor 18 pushes the lower mold 8 to reset, and the motor 12 drives the active roller 10 to rotate and rewind the remaining part of the aluminum foil 9. The driven roller 14 is driven by the aluminum foil 9 to rotate synchronously, and the aluminum foil 9 wound on the outer wall of the driven roller 14 is released.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pressing and forming device for producing an aluminum foil lunch box, comprising a base (1) and a gantry (2), wherein the gantry (2) is fixedly connected to the top of the base (1), characterized in that: The top of the gantry (2) is fixedly connected to a hydraulic rod (3), the bottom of the hydraulic rod (3) is fixedly connected to a trimming mechanism, the bottom of the trimming mechanism is hung with an upper mold (7), a receiving cavity (26) is provided at the bottom of the upper mold (7), a mounting seat (28) is fixedly connected to the middle position of the top inner wall of the receiving cavity (26), both sides of the mounting seat (28) are rotatably connected to rotating brackets (24), the same tension spring (27) is fixedly connected between the two rotating brackets (24), and the bottoms of the two rotating brackets (24) are rotatably connected to side pressure rollers (17), the spacing between the rotating axes of the two rotating brackets (24) is smaller than the spacing between the rotating axes of the two side pressure rollers (17), one side of the top of the base (1) is rotatably connected to an active roller (10), and the top of the base (1) is away from the active roller ( A driven roller (14) is rotatably connected to one side of the base (10), and the outer walls of the driven roller (14) and the active roller (10) are wrapped with the same aluminum foil (9). A motor (12) is fixedly connected to the side of the top of the base (1) close to the active roller (10), and the output end of the motor (12) is transmission-connected to the roller shaft of the active roller (10). A lower mold (8) adapted to the upper mold (7) is arranged on the top of the base (1), and the aluminum foil (9) is arranged between the upper mold (7) and the lower mold (8). Both sides of the bottom of the lower mold (8) are provided with a socket (15). A push rod motor (18) is fixedly connected to one side of the bottom of the gantry (2), and one end of the push rod motor (18) is fixedly connected to the outer wall of the lower mold (8). A demoulding shovel plate (16) adapted to the socket (15) is fixedly connected to the top of the base (1).

2. A pressing and forming device for producing aluminum foil lunch boxes according to claim 1, characterized in that: The edge trimming mechanism comprises a push plate (4), an edge pressing mold (5), a cutter (6) and a buffer spring (25); the push plate (4) is fixedly connected to the bottom end of the hydraulic rod (3); the edge pressing mold (5) is fixedly connected to the bottom of the push plate (4); the cutter (6) is fixedly connected to the bottom of the edge pressing mold (5); the cutter (6) and the edge pressing mold (5) are both arranged in an annular shape; and the buffer spring (25) is fixedly connected between the bottom of the push plate (4) and the outer wall of the top of the upper mold (7).

3. A pressing and forming device for producing aluminum foil lunch boxes according to claim 2, characterized in that: The four corners of the push plate (4) are all plugged with suspension rods (32), the tops of the four suspension rods (32) are all fixedly connected to the limiting blocks (22), the bottoms of the four suspension rods (32) are respectively fixedly connected to the four corners of the top outer wall of the upper mold (7), the tops of the four suspension rods (32) are all sleeved with buffer sleeves (31), the four buffer sleeves (31) are respectively located between the four limiting blocks (22) and the push plate (4), and the buffer sleeves (31) are made of rubber.

4. A pressing and forming device for producing aluminum foil lunch boxes according to claim 3, characterized in that: A first roller frame (11) is fixedly connected to the top of the base (1) on one side close to the active roller (10), and a second roller frame (13) is fixedly connected to the top of the other side of the base (1); the active roller (10) is rotatably connected to the top of the first roller frame (11) via a bearing, and the driven roller (14) is rotatably connected to the top of the second roller frame (13) via a bearing.

5. A pressing and forming device for producing aluminum foil lunch boxes according to claim 4, characterized in that: A guide slope (34) is provided on the top of the demoulding shovel plate (16) close to the lower mold (8), and a demoulding shovel head (33) is fixedly connected to one end of the demoulding shovel plate (16) close to the lower mold (8), and the demoulding shovel head (33) is made of rubber material.

6. A pressing and forming device for producing aluminum foil lunch boxes according to claim 5, characterized in that: The top of the base (1) is fixedly connected to two shovel plate frames (35), and the side of the demoulding shovel plate (16) away from the lower mold (8) is fixedly connected to the inside of the two shovel plate frames (35) by bolts.

7. A pressing and forming device for producing aluminum foil lunch boxes according to claim 6, characterized in that: The exteriors of the two side pressure rollers (17) are both sleeved with rubber sleeves (23).

8. The pressing and forming device for producing aluminum foil lunch boxes according to claim 7, characterized in that: A through groove (29) is provided in the middle of the base (1), and the inner wall of the through groove (29) is rotatably connected to a parallel supporting roller (30) via a bearing, and the outer wall of the bottom of the lower mold (8) is in contact with the top outer wall of the supporting roller (30).

9. A pressing and forming device for producing aluminum foil lunch boxes according to claim 8, characterized in that: A bellows (20) is fixedly connected to the top of the gantry (2) near the push rod motor (18), a negative pressure suction cup (19) is fixedly connected to the bottom of the bellows (20), and an air pipe joint (21) is fixedly connected to the top of the bellows (20), and both the negative pressure suction cup (19) and the air pipe joint (21) are connected to the bellows (20).

10. A pressing and forming method for producing aluminum foil lunch boxes, applied to a pressing and forming device for producing aluminum foil lunch boxes according to claim 9, wherein the method comprises the following steps: a hydraulic rod (3) pushes the upper mold (7) downward to press the aluminum foil (9) into the lower mold (8) for forming; the bottoms of the two side pressure rollers (17) are subjected to force and roll in directions away from each other; the included angle of the two rotating brackets (24) increases; the tension spring (27) is stretched under force; the side pressure rollers (17) are always pressed on the top of the aluminum foil (9) during the movement; the portion of the aluminum foil (9) to be pressed into the lower mold (8) is stretched and flattened; the cutter (6) cuts the aluminum foil (9) during the pressing process; the product portion of the aluminum foil (9) is separated from the residual portion. The pressing die (5) presses the product part of the aluminum foil (9). The buffer spring (25) is compressed before the pressing die (5) contacts the aluminum foil (9) and plays a buffering role before pressing, so that the pressing die (5) fully presses the product part of the aluminum foil (9). The cutter (6) fully cuts the aluminum foil (9). When the push plate (4) and the upper mold (7) produce relative movement, the four suspension rods (32) play a guiding role so that the movement can only occur in the vertical direction, preventing the upper mold (7) from deviating due to the expansion and contraction process of the compression spring (25). The limit block (22) plays a role in limiting the relative displacement stroke of the suspension rod (32) and the push plate (4). The buffer sleeve (31) is in the limit block ( The upper mold (22) and the push plate (4) play a role in buffering collision. After the pressing is completed, the hydraulic rod (3) drives the upper mold (7) to reset, and the tension spring (27) restores the elastic potential energy, thereby driving the rotating bracket (24) and the side pressure roller (17) to reset. After the reset is completed, the push rod motor (18) pulls the lower mold (8) horizontally to make the lower mold (8) leave the bottom of the upper mold (7). The demoulding shovel plate (16) is inserted into the socket (15). The demoulding shovel head (33) is first inserted into the bottom of the product, and the product is gradually lifted up along the guide slope (34), and the product fitted in the inner wall of the lower mold (8) is pushed up, so as to realize the automatic separation of the product and the lower mold (8). The bellows is connected through the air pipe joint (21). (20) is connected to the pneumatic control system, and by moving the bellows (20), the negative pressure suction cup (19) is brought close to the product for adsorption, and the product is taken out from the lower mold (8). During the pressing process of the upper mold (7) and the lower mold (8), the supporting roller (30) plays a supporting role at the bottom of the lower mold (8), and at the same time reduces the wear between the outer wall of the bottom of the lower mold (8) and the base (1). After the unloading is completed, the push rod motor (18) pushes the lower mold (8) to reset, and the motor (12) drives the active roller (10) to rotate, and the remaining part of the aluminum foil (9) is rolled up. The driven roller (14) is driven by the aluminum foil (9) to rotate synchronously, and the aluminum foil (9) wound on the outer wall of the driven roller (14) is released.

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