CN217226837U - Forming device for upper cover of shoe box - Google Patents

Abstract

The utility model discloses a shoe box upper cover forming device, which comprises a material pressing mechanism, a material folding mechanism, a pre-folding mechanism and a front edge folding mechanism, wherein the material folding mechanism comprises a second connecting plate, and a second mounting plate capable of lifting is arranged above the second connecting plate; two fourth connecting plates capable of adjusting the distance are arranged on the second mounting plate; a side plate for folding the side wall of the upper cover of the shoe box is arranged on the fourth connecting plate; the front edge folding mechanism comprises a fifth connecting plate fixed on the second mounting plate, the fifth connecting plate is provided with a rotatable supporting seat, the supporting seat is connected with a third mounting plate, and fourth pressing plates are respectively fixed on two sides of the third mounting plate; and the fifth connecting plate is provided with a folding and pressing cylinder for driving the third mounting plate to rotate along with the supporting seat.

Description

Forming device for upper cover of shoe box

Technical Field

The utility model belongs to the technical field of shoe box manufacturing and packaging and specifically relates to a shoe box upper cover forming device for folding shoe box cardboard into box.

Background

No. is CN 201220231392.9's a carton automatic molding machine, including the workstation with set up workstation top clamp plate, the clamp plate passes through the support and couples with the workstation, the clamp plate is installed and can be slided from top to bottom on a plurality of guide pillars, the clamp plate top is equipped with the master cylinder, the master cylinder ejector pin is connected with the clamp plate, its characterized in that: the workbench is provided with a lower positioning plate corresponding to the upper positioning plate, rotary pressing plates are arranged on the front side, the rear side, the left side and the right side of the lower positioning plate respectively, rotary ejector rods are arranged on the outer sides of the four corners of the lower positioning plate respectively and are in inverted L shapes, third cylinders and fourth cylinders are fixed on the front side and the rear side of the bottom of the pressing plate respectively, piston rods of the third cylinders and the fourth cylinders are located on the inner sides of the third cylinders and the fourth cylinders, movable plates are connected to piston rods of the third cylinders and the fourth cylinders, fifth cylinders and sixth cylinders are fixed on the front side and the rear side of the upper positioning plate correspondingly, piston rods of the fifth cylinders and the sixth cylinders are located on the outer sides of the fifth cylinders and the sixth cylinders, and side plates are connected to the piston rods. The patent disclosure has certain drawbacks such as slow forming speed, need for bonding operation, excessive noise, etc.

Disclosure of Invention

The utility model provides a to above-mentioned prior art problem, provide a shoes box upper cover forming device, realize the automatic folding of shoes box upper cover.

The utility model provides a technical scheme that above-mentioned technical problem adopted: a forming device for an upper cover of a shoe box comprises a pressing mechanism, a material folding mechanism, a pre-folding mechanism and a front edge folding mechanism, wherein the material folding mechanism comprises a second connecting plate, and a second mounting plate capable of lifting is arranged above the second connecting plate; two fourth connecting plates capable of adjusting the distance are arranged on the second mounting plate; a side plate for folding the side wall of the upper cover of the shoe box is arranged on the fourth connecting plate; the front edge folding mechanism comprises a fifth connecting plate fixed on the second mounting plate, the fifth connecting plate is provided with a rotatable supporting seat, the supporting seat is connected with a third mounting plate, and fourth pressing plates are respectively fixed on two sides of the third mounting plate; and the fifth connecting plate is provided with a folding and pressing cylinder for driving the third mounting plate to rotate along with the supporting seat.

In order to optimize the technical proposal, the utility model discloses still include following modified technical proposal.

The fourth connecting plate is fixed with a lug folding plate which is provided with a first guide block and a second guide block.

The second mounting plate is provided with two lead screw rods with opposite thread directions and a third motor for driving the lead screw rods to rotate; a screw nut of the screw rod is fixedly connected with the corresponding fourth connecting plate; the second connecting plate is slidably mounted on the second fixing plate, and the second fixing plate is provided with a second motor for driving the second connecting plate to slide.

Foretell second mounting panel passes through that the guide bar can go up and down to be installed on the second connecting plate, and the second connecting plate is fixed with the third cylinder that is used for driving the second mounting panel and goes up and down.

The supporting seat is an arc-shaped body, one end of the supporting seat is rotatably installed on the fifth connecting plate through a first rotating shaft, and the other end of the supporting seat is rotatably connected with the third installing plate through a second rotating shaft; a piston rod of the folding and pressing cylinder is connected with a fourteenth connecting block which is slidably arranged on the fifth connecting plate; the fourteenth connecting block is rotatably connected with the first end of the driving rod, and the second end of the driving rod is fixedly connected with the bottom surface of the third mounting plate.

The fourth pressing plate is provided with a pressing claw which is movably connected; the fourth pressing plate is provided with a pressing claw mounting plate; the press claw mounting plate is provided with a long groove, and the long groove is slidably mounted on a locking screw of the fourth press plate; a first spring is arranged between the pressing claw mounting plate and the fourth pressing plate; the pressing claw is movably arranged on the pressing claw mounting plate.

The pressing claw is rotatably arranged on the pressing claw mounting plate through a third rotating shaft; and a second spring is arranged between the pressing claw and the pressing claw mounting plate.

The material pressing mechanism comprises a first fixing plate arranged on the rack, and the first fixing plate is provided with a movable first mounting plate and a first motor for driving the first mounting plate to move; the first mounting plate is provided with a first pressing plate, a second pressing plate and a third pressing plate which are used for pressing materials.

The pre-folding mechanism comprises a pre-folding mounting seat fixedly connected with the fourth connecting plate, a guide plate is fixedly mounted on the pre-folding mounting seat, and the guide plate is provided with an arc guide groove; a first connecting rod capable of ascending and descending along the arc guide groove is arranged on one side of the guide plate, the upper end of the first connecting rod is connected with a pre-folding block, and the lower end of the first connecting rod is connected with a driving shaft; the pre-folding mounting seat is provided with a pre-folding driving cylinder and a seventh connecting block driven by the pre-folding driving cylinder, and the driving shaft is movably connected with the seventh connecting block.

A third connecting plate is fixed on the pre-folding mounting seat; the upper end of the third connecting plate is provided with a rotatable folding lug; a lug folding cylinder is installed on the third connecting plate, and a piston rod of the lug folding cylinder drives a lug folding sheet to rotate through an eighth connecting block, a second connecting rod and a tenth connecting block.

Compared with the prior art, the utility model discloses a shoes box upper cover forming device realizes the full-automatic folding of shoes box upper cover through swager constructs, rolls over material mechanism, rolls over mechanism in advance and roll over the cooperation of leading edge mechanism, has that the shaping step is few, folding efficient advantage.

Drawings

Fig. 1 is a schematic view of a material pressing mechanism in an embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic view of a material folding mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic view of a portion of a material folding mechanism.

Fig. 5 is an exploded view of fig. 4.

Fig. 6 is a schematic view of the pre-folding mechanism.

Fig. 7 is an exploded view of fig. 6.

Fig. 8 is a schematic view of the folded edge mechanism.

Fig. 9 is an exploded view of fig. 8.

Fig. 10 is a schematic view of the structure of the cardboard before folding the shoe box.

Detailed Description

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 to fig. 10 are schematic structural diagrams of the present invention.

Wherein the reference numerals are: the device comprises a rack 1, a first fixing plate 2, a first motor 3, a first gear 4, a first rack 5, a first connecting strip 6, a first mounting plate 7, a first sliding block 8, a first sliding rail 9, a first sensor 10, a first induction sheet 11, a first air cylinder 12, a second air cylinder 13, a first connecting plate 14, a first pressing plate 15, a second pressing plate 16, a third pressing plate 17, an elastic sheet 18, a first connecting block 19, a second connecting block 20, a buckling air cylinder 21, a third connecting block 22, a fourth connecting block 23, a fifth connecting block 24, a sixth connecting block 25, a bearing mounting seat 26, a buckling plate 27, a second fixing plate 28, a second motor 29, a second gear 30, a second rack 31, a second connecting strip 32, a second connecting plate 33, a second sliding block 34, a second sliding rail 35, a second sensor 36, a second induction sheet 37, a second mounting plate 38, a third motor 39, a third gear 40, a second gear mounting seat 41, A fourth gear 42, a lead screw 43, a lead screw nut 44, a twelfth connecting block 45, a fourth connecting plate 46, a side plate 47, a fifth slider 48, a fifth slide rail 49, a pre-folding driving cylinder 50, a lug folding cylinder 51, a third slider 52, a first fixing block 53, a seventh connecting block 54, a second groove 54a, a driving shaft 55, a first connecting rod 56, a guide plate 57, an arc guide groove 57a, a pre-folding block 58, a second fixing block 59, a third connecting plate 60, an eighth connecting block 61, a ninth connecting block 62, a third slide rail 63, a second connecting rod 64, a tenth connecting block 65, a mounting block 66, an eleventh connecting block 67, a lug folding sheet 68, a third cylinder 69, a folding cylinder 70, a third fixing block 71, a fifth connecting plate 72, a thirteenth connecting block 73, a fourteenth connecting block 74, a fourth fixing block 75, a sixteenth connecting block 76, a fifth slider 77, a fourth slide rail 78, a driving rod 79, a fifth slider 48, a fifth connecting block 71, a thirteenth connecting block, a fifth connecting block, a sixth connecting block, a driving rod, a driving rod, a driving rod, a driving rod driving device, a driving device, the shoe cover comprises a supporting seat 80, a third mounting plate 81, a fourth pressing plate 82, a first groove 82a, a pressing claw mounting plate 83, a first hole 83a, a fifth fixing block 84, a pressing claw 85, a third hole 85a, a first spring 86, a second spring 87, a guide shaft 88, a fourth slider 89, a first motor mounting seat 90, a third sensor 91, a third sensing piece 92, a first shaft 93, a second shaft 94, a third shaft 95, a fourth sensor 96, a limiting block 97, a first crease 98, a second crease 99, a third crease 100, a buckle 101, a buckle groove 102, a side wall 103, a fourth crease 104, a seventeenth connecting block 105, a lug folding plate 106, a first guide block 107, a second guide block 108, an eighteenth connecting plate 109, a sucker mounting seat 110, a sucker 111, a sixth fixing block 112, a guide plate 113, a shoe cover lug 114 and a pre-folding mounting seat 115.

The utility model discloses a shoe box upper cover forming device, including swager constructs, rolls over material mechanism, rolls over mechanism and book leading edge mechanism in advance.

As shown in fig. 1 and 2, the pressing mechanism includes a first fixing plate 2 mounted on the frame 1, and a first motor 3 mounted on the first fixing plate 2. The output shaft of the first motor 3 is provided with a first gear 4, and the first gear 4 is positioned in the cavity of the first motor mounting seat 90. The first gear 4 is meshed with the first rack 5, and the first rack 5 is fixedly connected with the first mounting plate 7 through the first connecting strip 6. The lower surface of the first mounting plate 7 is mounted on a first slide block 8 of a first slide rail 9, and the first motor 3 drives the first mounting plate 7 to move along the first slide rail 9 through the first gear 4 and the first rack 5, so as to adjust the material pressing position.

A first sensor 10 is arranged at the right side of the first sliding rail 9, and a first sensing piece 11 is arranged on the first mounting plate 7. When the first mounting plate 7 moves to the rightmost side, the first sensor 10 receives a position signal of the first sensing piece 11, so that the first motor 3 is controlled to stop and the first mounting plate 7 is prevented from sliding out of the first slide rail 9 by a safe distance.

The first mounting plate 7 is provided with a first cylinder 12 and a second cylinder 13. The piston rod of the first cylinder 12 is connected to a first connecting block 19. The first connecting block 19 is fixedly connected with the first pressure plate 15 through a second connecting block 20. The first cylinder 12 drives the first pressing plate 15 to move up and down to press the front end of the paper box, so as to pre-fold the first crease 98 of the shoe box.

The piston rod of the second cylinder 13 is fixedly connected with the first connecting plate 14. One end of the first connecting plate 14 is connected with the second pressing plate 16, and the other end is connected with the third pressing plate 17, so that the second pressing plate 16 and the third pressing plate 17 are driven to move up and down to press materials. Two elastic pieces 18 are mounted on the second presser plate 16, and the paper box is separated by the elasticity of the elastic pieces 18, so that the paper box is prevented from being hooked when the first connecting plate 14 is lifted.

The third presser plate 17 is provided with a catch cylinder 21. The cylinder body of the buckle cylinder 21 is fixed on the third pressure plate 17 through a third connecting block 22, and the piston rod of the buckle cylinder 21 is connected with a fourth connecting block 23. The first shaft 93 penetrates through the fourth connecting block 23, and both ends of the first shaft are rotatably connected with the fifth connecting block 24 and the sixth connecting block 25 respectively. Two ends of the second shaft 94 respectively penetrate through the fifth connecting block 24 and the sixth connecting block 25, and two ends of the second shaft 94 are respectively rotatably connected with the bearing mounting base 26 through bearings. Bearing mounting seat 26 is mounted on second presser plate 16, and fastening plate 27 is connected to fifth connecting block 24 and sixth connecting block 25. Two sets of the buckling cylinders 21 and the buckling plates 27 are symmetrically arranged on two sides of the first connecting plate 14 respectively. The buckle cylinder 21 drives the buckle plate 27 to rotate around the second shaft 94, so that the buckle 101 at the front end of the upper cover of the shoe box is clamped in the buckle grooves 102 at the two sides of the upper cover.

As shown in fig. 3, 4 and 5, the material folding mechanism includes a second motor 29 disposed below the second fixing plate 28. The output shaft of the second motor 29 is connected to a second gear 30, and the second gear 30 is engaged with a second rack 31. The second rack 31 is connected to a lower surface of the second connection plate 33 by a second connection bar 32. Both sides of the lower surface of the second connecting plate 33 are connected to the second slider 34. Two second sliding rails 35 are disposed on two sides of the second fixing plate 28, and the second motor 29 drives the second connecting plate 33 to move along the second sliding rails 35 through the second gear 30 and the second rack 31, so as to adjust the material folding position in the front-back direction.

A second sensor 36 is mounted on the left side of the second slide rail 35, and a second sensing piece 37 is mounted on the second connecting plate 33. When the second connecting plate 33 moves to the rightmost side, the second sensor 36 receives a position signal of the second sensing piece 37, thereby controlling the second motor 29 to stop and preventing the second connecting plate 33 from sliding out of the safe distance of the second slide rail 35.

A third motor 39 is mounted on the second mounting plate 38. A third gear 40 is mounted on the output shaft of the third motor 39. The fourth gear 42 is mounted in the second gear mounting base 41. The third gear 40 meshes with a fourth gear 42. The two sides of the fourth gear 42 are respectively provided with a lead screw 43, and the thread directions of the lead screw 43 on the two sides are opposite. A lead screw nut 44 is mounted on each lead screw 43. The lead screw nut 44 is mounted on the fourth connecting plate 46 through a twelfth connecting block 45. The outer side wall of the fourth connecting plate 46 is mounted with a side plate 47, and the lower surface of the fourth connecting plate 46 is mounted on a fifth slider 48 of a fifth slide rail 49. The third motor 39 drives the lead screw 43 on both sides of the fourth gear 42 to rotate, and the two lead screw nuts 44 move away from or close to each other on the two lead screw 43. The two fourth connecting plates 46 are driven to be away from or close to each other on the fifth sliding rail 49, so that the distance between the fourth connecting plates 46 on the two sides is adjusted, and the folding positions on the two sides of the upper covers with different sizes are adapted.

The fourth connecting plates 46 on both sides are connected to the ear folding plates 106 by seventeenth connecting blocks 105. The upper end of the ear folding plate 106 is provided with a first guide block 107 and a second guide block 108 with different inclination angles, the first guide block 107 and the second guide block 108 sequentially guide shoe cover ears 114 to be stressed from the front end to the folding position, and finally the shoe cover ears are folded along the third fold 100, so that the carton is prevented from being damaged.

A third sensor 91 is mounted on the second mounting plate 38 and a third sensor pad 92 is mounted on the fourth attachment plate 46. When the distance between the two fourth connecting plates 46 is minimum, the third sensor 91 receives the position signal of the third sensing piece 92, thereby controlling the third motor 39 to stop to prevent the fourth connecting plate 46 from sliding out of the safety distance of the fifth slide rail 49.

As shown in fig. 6 and 7. The pre-folding mechanism comprises a pre-folding driving cylinder 50 and a lug folding cylinder 51 which are arranged on the fourth connecting plate 46. The pre-folding driving cylinder 50 is sleeved with a third sliding block 52, and the third sliding block 52 is fixedly connected with a seventh connecting block 54 through a first fixing block 53. The seventh connecting block 54 has a "]" shape. The first connecting rod 56 is fixedly connected to the middle of the driving shaft 55 and one end of the guide shaft 88. One end of the driving shaft 55 is received in the second groove 54a of the seventh connecting block 54, and the seventh connecting block 54 is engaged with the stopper 97 to prevent the driving shaft 55 from slipping out during movement. The other end of the drive shaft 55 is slidably fitted into an arc guide groove 57a of the guide plate 57. The other end of the guide shaft 88 is also slidably fitted into the circular guide groove 57a of the guide plate 57 to serve as a guide. A pre-folding block 58 is mounted on the upper end of the first connecting rod 56. The prefolding driving cylinder 50 drives the third slide block 52 to slide up and down, and the drive shaft 55 and the guide shaft 88 slide on the arc guide groove 57a to drive the prefolding block 58 to move, so as to prefolding the first fold 98 of the upper cover of the shoe box.

The fourth sensor 96 is installed at the lower end of the pre-folding mechanism, and when the third slider 52 is not at the lowermost end, the third sensor 91 senses a position signal of the third slider 52, controls the third slider 52 on the pre-folding driving cylinder 50 to move to the lowermost end, and then performs pre-folding.

The fourth connecting plates 46 on both sides are connected to the suction cup mounting base 110 through the eighteenth connecting plates 109, and the suction cup 111 is mounted in the suction cup mounting base 110. When the ear folding cylinder 51 drives the ear folding piece 68 to move, the suction cup 111 sucks the shoe cover ear 114, so that the ear folding piece 68 can pre-fold the fourth fold 104. The suction cup mounting base 110 on the fourth connecting plate 46 on the left side is connected with a guide plate 113 through a sixth fixing block 112. The upper end of the guide plate 113 is a slope to prevent the edge of the upper cover of the delivered shoe box from inclining downwards and damaging the paper box.

The lug folding cylinder 51 is fixedly connected to the third connecting plate 60 through a second fixing block 59. The piston rod of the lug folding cylinder 51 is connected with the eighth connecting block 61, and the eighth connecting block 61 is connected with the fourth sliding block 89 on the third sliding rail 63 through the ninth connecting block 62. The third slide rail 63 is mounted on the third link plate 60. The upper end of the eighth connecting block 61 is fixedly connected with the lower end of the second connecting rod 64, and the upper end of the second connecting rod 64 is fixedly connected with one end of the tenth connecting block 65. The other end of the tenth connecting block 65 is fixedly connected to the middle of the third shaft 95, and the third shaft 95 is rotatably mounted on the two mounting blocks 66. One end of the third shaft 95 is fixedly connected with the eleventh connecting block 67, and the eleventh connecting block 67 is fixedly connected with the folding lug 68. The ear folding cylinder 51 drives the third shaft 95 to rotate through the tenth connecting block 65, so as to drive the ear folding piece 68 to rotate, and pre-fold the fourth fold 104 of the upper cover of the shoe box.

A third air cylinder 69 mounted below the second connecting plate 33 and a crimping air cylinder 70 mounted on the second mounting plate 38. The piston rod of the third cylinder 69 is connected with the second mounting plate 38 to drive the second mounting plate 38 to ascend and descend, so as to drive the side plates 47 at two sides of the second mounting plate 38 to ascend and descend, and fold the two side walls 103 of the upper cover of the shoe box.

As shown in fig. 8 and 9. The folding and pressing air cylinder 70 is fixedly connected with a fifth connecting plate 72 through a third fixing block 71, and the fifth connecting plate 72 is fixedly connected with the second mounting plate 38 through a thirteenth connecting block 73. The piston rod of the folding and pressing air cylinder 70 is connected with the lower surface of the fourteenth connecting block 74, the fourteenth connecting block 74 is installed on the fifth sliding block 77 through the sixteenth connecting block 76, and the fourth sliding rail 78 is installed on the fifth connecting plate 72. One end of the driving rod 79 is mounted on the fourteenth connecting block 74, and the other end is mounted on the lower end surface of the third mounting plate 81. Supporting seats 80 are provided at both sides of the driving rod 79, one end of each supporting seat 80 is mounted on the fifth connecting plate 72 through a fourth fixing block 75, and the other end is mounted on the lower end surface of the third mounting plate 81 through a fifth fixing block 84. The fourth pressing plate 82 is fixedly mounted on two sides of the third mounting plate 81, and a first groove 82a is formed in one end of the fourth pressing plate 82. The pressing claw mounting plate 83 is connected to the sliding groove of the fourth pressing plate 82 by a screw, and the pressing claw mounting plate 83 can slide back and forth. The pressing claw mounting plate 83 is mounted in the first recess 82 a. The pressing claw mounting plate 83 is provided with a first hole 83a, the inner wall of the first groove 82a is provided with a second hole, and two ends of the first spring 86 are respectively mounted in the first hole 83a and the second hole. The pressing claw mounting plate 83 can slide back and forth to prevent the pressing claw 85 from scratching the shoe box when moving downward. The front end of the pressing claw mounting plate 83 is provided with a transverse connecting shaft, and the pressing claw 85 can be rotatably connected with the connecting shaft. The third hole 85a is formed in the pressing claw 85, the fourth hole is formed in the front end face of the pressing claw mounting plate 83, and two ends of the second spring 87 are mounted in the third hole 85a and the fourth hole respectively. The pressing claw 85 is movably connected with the fourth pressing plate 82, so that the pressing claw 85 can be prevented from colliding with the buckling plate 27. The folding cylinder 70 drives the fourth pressing plate 82 to move through the fourteenth connecting block 74 and the driving rod 79, and the fourth pressing plate 82 folds the second fold 99 of the upper cover of the shoe box. The pressing claw 85 moves with the fourth pressing plate 82, and the pressing claw 85 presses the catch 101 against the catch groove 102.

Before processing, the material pressing position is adjusted through the first motor 3 according to the size of the paper box, and the material folding position is adjusted through the second motor 29 and the third motor 39. During the machining, the first cylinder 12 and the second cylinder 13 are ventilated to press the materials. The suction cup 111 sucks the shoe cover ear 114. The pre-folding driving cylinder 50 drives the pre-folding block 58 to move upwards, so that the foremost part of the upper cover is pre-folded along the first crease 98, and meanwhile, the ear folding cylinder 51 drives the ear folding piece 68 to rotate, so that the buckling groove 102 of the upper cover of the shoe box is pre-folded along the fourth crease 104. After the prefolding is completed, the prefolding block 58 and the tab 68 return to their positions. The suction of the suction cup 111 is stopped. The first air cylinder 12 drives the first pressing plate 15 to be lifted, the third air cylinder 69 drives the second mounting plate 38 to be lifted, the side plate 47 and the ear folding plate 106 on the fourth connecting plate 46 are lifted, and the two side walls 103, the third crease 100 and the second crease 99 of the upper cover of the shoe box are folded. The folding cylinder 70 drives the third mounting plate 81 and the fourth pressing plate 82 to move, so that the upper cover is folded along the first fold 98; during folding, the pressing claw 85 presses the catch 101 against the catch groove 102. The catch cylinder 21 then drives the catch plate 27 in a rotational movement about the second axis 94, causing the catch 101 to catch in the catch groove 102. After the upper cover is folded, the folding air cylinder 70 drives the third mounting plate 81 and the fourth pressing plate 82 to reset, and the third air cylinder 69 drives the second mounting plate 38 to descend to return to the original position. The second air cylinder 13 drives the second pressing plate 16 and the third pressing plate 17 to be lifted, and the shoe box moves to the next box body folding process.

Claims (10)

1. The utility model provides a shoes box upper cover forming device, includes swager constructs, rolls over material mechanism, rolls over mechanism and book leading edge mechanism in advance, characterized by: the material folding mechanism comprises a second connecting plate (33), and a second mounting plate (38) capable of lifting is arranged above the second connecting plate (33); two fourth connecting plates (46) capable of adjusting the distance are arranged on the second mounting plate (38); a side plate (47) used for folding the side wall (103) of the upper cover of the shoe box is arranged on the fourth connecting plate (46); the front edge folding mechanism comprises a fifth connecting plate (72) fixed on the second mounting plate (38), the fifth connecting plate (72) is provided with a rotatable supporting seat (80), the supporting seat (80) is connected with a third mounting plate (81), and fourth pressing plates (82) are respectively fixed on two sides of the third mounting plate (81); and the fifth connecting plate (72) is provided with a folding and pressing air cylinder (70) for driving the third mounting plate (81) to rotate along with the supporting seat (80).

2. The shoe box upper cover molding device according to claim 1, wherein: a lug folding plate (106) is fixed on the fourth connecting plate (46), and the lug folding plate (106) is provided with a first guide block (107) and a second guide block (108).

3. The shoe box upper cover molding device according to claim 1, wherein: the second mounting plate (38) is provided with two lead screw rods (43) with opposite thread directions and a third motor (39) for driving the lead screw rods (43) to rotate; a lead screw nut (44) of the lead screw rod (43) is fixedly connected with a corresponding fourth connecting plate (46); the second connecting plate (33) is slidably mounted on the second fixing plate (28), and the second fixing plate (28) is provided with a second motor (29) for driving the second connecting plate (33) to slide.

4. The shoe box upper cover molding device according to claim 1, wherein: the second mounting plate (38) can be installed on the second connecting plate (33) in a lifting mode through the guide rod, and a third air cylinder (69) used for driving the second mounting plate (38) to lift is fixed on the second connecting plate (33).

5. The shoe box upper cover molding device according to claim 1, wherein: the supporting seat (80) is an arc-shaped body, one end of the supporting seat (80) is rotatably installed on the fifth connecting plate (72) through a first rotating shaft, and the other end of the supporting seat is rotatably connected with the third installing plate (81) through a second rotating shaft; a piston rod of the folding and pressing air cylinder (70) is connected with a fourteenth connecting block (74) which is slidably arranged on a fifth connecting plate (72); the fourteenth connecting block (74) is rotatably connected with the first end of the driving rod (79), and the second end of the driving rod (79) is fixedly connected with the bottom surface of the third mounting plate (81).

6. The shoe box upper cover molding device according to claim 1, wherein: the fourth pressing plate (82) is provided with a pressing claw (85) which is movably connected; the fourth pressing plate (82) is provided with a pressing claw mounting plate (83); the pressing claw mounting plate (83) is provided with a long groove, and the long groove is slidably mounted on a locking screw of the fourth pressing plate (82); a first spring (86) is arranged between the pressing claw mounting plate (83) and the fourth pressing plate (82); the pressing claw (85) is movably arranged on the pressing claw mounting plate (83).

7. The shoe box upper cover molding device according to claim 6, wherein: the pressing claw (85) is rotatably arranged on the pressing claw mounting plate (83) through a third rotating shaft; a second spring (87) is arranged between the pressing claw (85) and the pressing claw mounting plate (83).

8. The shoe box upper cover molding device according to claim 1, wherein: the material pressing mechanism comprises a first fixing plate (2) arranged on the rack (1), and the first fixing plate (2) is provided with a movable first mounting plate (7) and a first motor (3) for driving the first mounting plate (7) to move; the first mounting plate (7) is provided with a first pressing plate (15), a second pressing plate (16) and a third pressing plate (17) which are used for pressing materials.

9. The shoe box upper cover molding device according to claim 1, wherein: the pre-folding mechanism comprises a pre-folding mounting seat (115) fixedly connected with a fourth connecting plate (46), a guide plate (57) is fixedly mounted on the pre-folding mounting seat (115), and an arc guide groove (57a) is formed in the guide plate (57); a first connecting rod (56) capable of ascending and descending along an arc guide groove (57a) is arranged on one side of the guide plate (57), a pre-folding block (58) is connected to the upper end of the first connecting rod (56), and a driving shaft (55) is connected to the lower end of the first connecting rod; the pre-folding mounting seat (115) is provided with a pre-folding driving cylinder (50) and a seventh connecting block (54) driven by the pre-folding driving cylinder (50), and the driving shaft (55) is movably connected with the seventh connecting block (54).

10. The shoe box upper cover molding device according to claim 9, wherein: a third connecting plate (60) is fixed on the pre-folding mounting seat (115); the upper end of the third connecting plate (60) is provided with a rotatable folding lug plate (68); a lug folding cylinder (51) is installed on the third connecting plate (60), and a piston rod of the lug folding cylinder (51) drives the lug folding plate (68) to rotate through an eighth connecting block (61), a second connecting rod (64) and a tenth connecting block (65).

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