Ton bag automatic sewing device

Abstract

The invention discloses an automatic ton bag sewing device, and relates to the technical field of ton bag sewing. The ton bag automatic sewing device comprises a workbench, an opening mechanism is arranged on the rear side wall of the workbench, two first guide rails are arranged on the right side of the top of the workbench, a first sliding seat is slidably connected to the tops of the two first guide rails, a second guide rail is arranged at the top of the first sliding seat, and a second sliding seat is slidably connected to the top of the second guide rail. A sewing machine is arranged at the top of the second sliding seat, folding mechanisms are arranged on the front sides and the rear sides of the two sets of conveying belt devices, and a feeding conveying mechanism matched with the two sets of conveying belt devices is arranged on the front side wall of the workbench. Under the cooperation of the extrusion assembly, the folded hanging belt can be extruded and fixed to the ton bag, then the hanging belt is sewn to the ton bag through a sewing machine, the risk that a human hand makes contact with a sewing needle is retrieved, and the human hand is protected against damage.

Description

Technical Field

[0001] The invention relates to the technical field of ton bag sewing, in particular to an automatic ton bag sewing device. Background Art

[0002] Ton bags are a special packaging bag product, also known as ton bags. They are a flexible transport packaging container with the advantages of moisture-proof, dust-proof, firm and safe. They are generally made of textile materials. When sewing ton bags, in each processing link of ton bags, the ton bags will first be sewn into a cylindrical shape with two ends connected, and then the slings will be sewn, and then the bottom of the ton bag will be closed and sewn. The slings are sewn separately. The slings need to be manually folded into a hanging ear structure during the separate sewing process. The ends of the cut cloth strips need to be folded and sewn into a shape similar to "8". The ear structure, when sewing, first one end of the sling needs to be sewn on the ton bag. Because the current sewing table is small, after sewing one end of the sling, the ton bag needs to be rotated to change the sewing position, and then the cloth strip is manually folded to make it into an ear shape, and the other end is laid on the ton bag under the sewing needle, and then the sewing machine is used for sewing. The two ends of the sling cannot be folded and sewn at the same time; and manually folding the sling and laying it on the ton bag will increase the risk of contact between the human hand and the sewing needle, which is easy to cause hand injury. Therefore, we propose an automatic sewing device for ton bags. Summary of the invention

[0003] In order to solve the problem that both ends of the sling can be automatically folded and laid on the ton bag and both ends of the sling can be sewn on the ton bag at the same time, reducing the contact between human hands and sewing needles; the purpose of the present invention is to provide an automatic sewing device for ton bags.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: an automatic sewing device for ton bags, comprising a workbench, a rear side wall of the workbench is provided with an opening mechanism, two groups of first guide rails are provided on the right side of the top of the workbench, the tops of the two groups of first guide rails are slidably connected with a first sliding seat, the top of the first sliding seat is provided with a second guide rail, the top of the second guide rail is slidably connected with a second sliding seat, a sewing machine is provided on the top of the second sliding seat, and a controller is provided on the front side wall of the sewing machine, two groups of matching conveyor belt devices are vertically arranged on the top of the workbench, the front and rear sides of the two groups of conveyor belt devices are provided with folding mechanisms, and the front side wall of the workbench is provided with a feeding and conveying mechanism matching with the two groups of conveyor belt devices.

[0005] Preferably, the folding mechanism includes two groups of arc plates provided on the front and rear sides of the conveyor belt devices, the bottoms of the two groups of arc plates are connected to the top of the workbench, the front side walls of the two groups of arc plates are provided with limit grooves and arc guide grooves, the two groups of limit grooves are slidably connected with limit blocks, the rear side walls of the two groups of limit blocks are provided with limit plates, the side walls away from the two groups of limit blocks are provided with fixed boxes, and the sides away from the two groups of fixed boxes are provided with vacuum suction cups, the vacuum suction cups are arranged in a rectangular frame shape, the rear side walls of the vacuum suction cups are provided with negative pressure tubes, the front side walls of the vacuum suction cups are provided with multiple groups of negative pressure holes, the bottoms of the two groups of fixed boxes are provided with vertical rods, two groups of guide grooves are provided on the top of the workbench, the vertical rods are slidably connected in the guide grooves, the outer walls of the vertical rods are sleeved and installed with support plates, the bottom of the support plates are slidably connected to the top of the workbench, and the outer walls of the vertical rods are sleeved and installed with limit rings The outer wall of the vertical rod is sleeved with a lifting ring, and the outer wall of the lifting ring is provided with a guide block slidably connected to the arc guide groove. A rack is movably penetrated at the top of the fixed box, and a connecting rod is provided at the bottom of the rack, one end of the connecting rod is connected to the outer wall of the lifting ring. The left side wall of the fixed box is connected with a first rotating shaft through a bearing, and the outer wall of the first rotating shaft is sleeved with a gear meshing with the rack. One end of the first rotating shaft passes through the right side wall of the fixed box and is connected to the extrusion assembly provided on the outside. The bottoms of the two groups of vertical rods are connected with connecting plates through a bearing, and the outer walls of the two groups of connecting plates are provided with connecting rods. The bottom of the workbench is slidably connected with a sliding plate, and one end of the two groups of connecting rods are hinged to the right side wall of the sliding plate. A fixed block is provided at the bottom of the workbench, and a second electric telescopic rod is provided on the right side wall of the fixed block, and one end of the second electric telescopic rod is connected to the left side wall of the sliding plate.

[0006] Preferably, the extrusion assembly includes a mounting block provided at one end of the first rotating shaft, two groups of second sliding rods are movably provided through the rear side wall of the mounting block, one end of the two groups of second sliding rods are connected to the rear side wall of the vacuum suction cup, a movable plate is provided at the other end of the two groups of second sliding rods, and a third electric telescopic rod is provided on the rear side wall of the mounting block, and one end of the third electric telescopic rod is connected to the front side wall of the movable plate.

[0007] Preferably, the outer side wall of the vertical rod is provided with two groups of lifting grooves, and the inner side wall of the lifting ring is provided with two groups of lifting blocks slidably connected to the lifting grooves.

[0008] Preferably, a moving groove is provided at the bottom of the workbench, and a moving block slidably connected to the moving groove is provided at the top of the sliding plate, and the moving block and the moving groove are arranged in a T shape.

[0009] Preferably, the feed conveying mechanism includes a support frame provided on the front side wall of the workbench, a mounting frame is provided on the top of the support frame, a third rotating shaft is provided in the mounting frame, two ends of the third rotating shaft are respectively connected to two bearings provided on the upper and lower side walls in the mounting frame, a second conveying roller is sleeved and installed on the outer wall of the third rotating shaft, a second rotating shaft is connected to the bottom of the mounting frame through bearing three, a motor is provided on the top of the mounting frame, an output end of the motor is connected to one end of the second rotating shaft, and a first conveying roller matching the second conveying roller is sleeved and installed on the outer wall of the second rotating shaft.

[0010] Preferably, a guide funnel is provided on the rear side wall of the installation frame, and the guide funnel matches the gap between the second conveying roller and the first conveying roller.

[0011] Preferably, the spreading mechanism comprises two groups of first sliding bars provided on the rear side wall of the workbench, one end of the two groups of first sliding bars being provided with a connecting seat, the outer walls of the two groups of first sliding bars being sleeved with a moving seat, a first electric telescopic rod being provided on the rear side wall of the workbench, one end of the first electric telescopic rod being connected to the front side wall of the moving seat, and a supporting rod being provided on the left side wall of the moving seat.

[0012] Preferably, a plurality of groups of grooves are provided on the top of the workbench, and guide rollers are rotatably connected and installed in the plurality of groups of grooves.

[0013] Preferably, the front side wall of the workbench is provided with a slot, a fourth rotating shaft is provided in the slot, two ends of the fourth rotating shaft are respectively connected to four bearings provided on the left and right side walls in the slot, and a roller is sleeved and installed on the outer wall of the fourth rotating shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a folding mechanism that can fold both ends of the sling at the same time. With the cooperation of the extrusion component, the folded sling can be squeezed and fixed on the ton bag, and then the sling is sewn on the ton bag by a sewing machine, thereby reducing the risk of contact between human hands and sewing needles and protecting human hands from injury; 2. The feeding conveying mechanism of the present invention can convey the sling vertically. With the help of the guide funnel, the sling can accurately enter the gap between the two sets of vertical conveyor belt devices, so that the two ends of the sling can be located at the front and rear sides of the two sets of vertical conveyor belt devices, respectively, so that the vacuum suction cup can adsorb and fix the sling to achieve folding; 3. The present invention is provided with guide rollers and roller shafts, which can easily rotate the ton bag with the help of the roller shafts and guide rollers. With the cooperation of the roller shafts and guide rollers, the ton bag rotates more smoothly, and the sewing position of the ton bag can be quickly changed to sew the next sling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a bottom view of the structure of the present invention.

[0018] Figure 3 For the present invention Figure 1 Enlarged left view of the structure of the middle folding mechanism.

[0019] Figure 4 For the present invention Figure 3 Rear view of the structure.

[0020] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0021] Figure 6 For the present invention Figure 3 Schematic diagram of the internal structure of the fixed box.

[0022] Figure 7 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0023] Figure 8 For the present invention Figure 4 Enlarged schematic diagram of the structure at point D in the middle.

[0024] Fig. 9 For the present invention Figure 1 A schematic diagram of the enlarged structure in the middle.

[0025] In the figure: 1, workbench; 2, sewing machine; 3, opening mechanism; 30, first electric telescopic rod; 31, first slide rod; 32, moving seat; 33, connecting seat; 34, support rod; 4, conveyor belt device; 5, folding mechanism; 50, fixed block; 51, second electric telescopic rod; 52, sliding plate; 53, connecting rod; 54, arc plate; 55, limit groove; 56, limit plate; 57, limit block; 58, fixed box; 59, extrusion assembly; 590, mounting block; 591, moving plate; 592, second slide rod; 593, third electric telescopic rod; 500, guide block; 501, arc guide groove; 502, connecting plate; 503, vertical rod; 504, vacuum suction cup; 50 5. Negative pressure hole; 506. Negative pressure tube; 507. Rack; 508. Connecting rod; 509. Support plate; 5000. Limiting ring; 5001. Lifting ring; 5002. Lifting slot; 5003. First rotating shaft; 5004. Gear; 5005. Guide slot; 6. Feed conveying mechanism; 60. Guide hopper; 61. Motor; 62. Second rotating shaft; 63. Mounting frame; 64. First conveying roller; 65. Second conveying roller; 66. Third rotating shaft; 67. Support frame; 7. First sliding seat; 8. First guide rail; 9. Second sliding seat; 10. Second guide rail; 11. Controller; 12. Groove; 13. Guide roller; 14. Slot; 15. Roller; 16. Fourth rotating shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1: Figure 1-3As shown, the present invention provides an automatic sewing device for ton bags, including a workbench 1, a rear side wall of the workbench 1 is provided with a propping mechanism 3, the propping mechanism 3 includes two groups of first slide bars 31 provided on the rear side wall of the workbench 1, one end of the two groups of first slide bars 31 is provided with a connecting seat 33, the outer walls of the two groups of first slide bars 31 are sleeved with a moving seat 32, a first electric telescopic rod 30 is provided on the rear side wall of the workbench 1, one end of the first electric telescopic rod 30 is connected to the front side wall of the moving seat 32, a propping rod 34 is provided on the left side wall of the moving seat 32, and the top right side of the workbench 1 is provided with a propping rod 34. Two groups of first guide rails 8 are provided, and a first sliding seat 7 is slidably connected to the top of the two groups of first guide rails 8. A second guide rail 10 is provided on the top of the first sliding seat 7. The top of the second guide rail 10 is slidably connected to the second sliding seat 9. A sewing machine 2 is provided on the top of the second sliding seat 9. A controller 11 is provided on the front side wall of the sewing machine 2. Two groups of matching conveyor belt devices 4 are vertically arranged on the top of the workbench 1. Folding mechanisms 5 are provided on the front and rear sides of the two groups of conveyor belt devices 4. A feeding and conveying mechanism 6 matching the two groups of conveyor belt devices 4 is provided on the front side wall of the workbench 1.

[0028] like Figure 2-7As shown, the folding mechanism 5 includes two groups of arc plates 54 provided on both sides of the front and rear of the conveyor belt device 4, the arc plates 54 are formed by a semi-arc plate and a vertical plate, the bottoms of the two groups of arc plates 54 are connected to the top of the workbench 1, the front side walls of the two groups of arc plates 54 are provided with limiting grooves 55 and arc guide grooves 501, a section of the arc guide groove 501 is provided in a semi-arc groove, thereby driving the guide block 500 to move up and down, thereby driving the lifting ring 5001 and the rack 507 to move up and down, and limiting blocks 57 are slidably connected in the two groups of limiting grooves 55, and limiting plates 56 are provided on the rear side walls of the two groups of limiting blocks 57, and fixed boxes 58 are provided on the side walls away from the two groups of limiting blocks 57, and vacuum suction cups 504 are provided on the sides away from the two groups of fixing boxes 58. The vacuum suction cup 504 is arranged in a rectangular frame shape, so that the sewing machine 2 can sew the suspender belt through the opening of the vacuum suction cup 504, a negative pressure tube 506 is arranged on the rear side wall of the vacuum suction cup 504, and a plurality of negative pressure holes 505 are arranged on the front side wall of the vacuum suction cup 504. The bottom of the two sets of fixing boxes 58 are provided with vertical rods 503, and two sets of guide grooves 5005 are opened on the top of the workbench 1. The vertical rod 503 is slidably connected in the guide grooves 5005, and the guide grooves 5005 are arranged in an arc shape. A support plate 509 is installed on the outer wall of the vertical rod 503, and the bottom of the support plate 509 is slidably connected to the top of the workbench 1. With the cooperation of the support plate 509, the vertical rod 503 moves more stably in the guide groove 5005, and a limit ring 5000 is installed on the outer wall of the vertical rod 503. The outer wall of the vertical rod 503 is sleeved with a lifting ring 5001, and the outer wall of the vertical rod 503 is provided with two groups of lifting grooves 5002, and the inner wall of the lifting ring 5001 is provided with two groups of lifting blocks slidably connected to the lifting grooves 5002. Under the cooperation of the lifting grooves 5002 and the lifting blocks, the lifting ring 5001 moves up and down on the outer wall of the vertical rod 503 more stably, so that the lifting ring 5001 drives the rack 507 to lift vertically more stably, and the rack 507 drives the gear 5004 to rotate more stably. The outer wall of the lifting ring 5001 is provided with a guide block 500 slidably connected to the arc guide groove 501, and the top of the fixed box 58 is movably penetrated by a rack 507, and the bottom of the rack 507 is provided with a connecting rod 508, and one end of the connecting rod 508 is connected to the outer wall of the lifting ring 5001 The side walls are connected, the left side wall of the fixed box 58 is connected with a first rotating shaft 5003 through a bearing, and the outer wall of the first rotating shaft 5003 is sleeved with a gear 5004 meshing with the rack 507, one end of the first rotating shaft 5003 passes through the right side wall of the fixed box 58 and is connected with the extrusion component 59 provided on the outside, the bottoms of the two groups of vertical rods 503 are connected with a connecting plate 502 through a bearing, and the outer side walls of the two groups of connecting plates 502 are provided with a connecting rod 53, and the bottom of the workbench 1 is slidably connected with a sliding plate 52, and a moving groove is opened at the bottom of the workbench 1, and a moving block slidably connected to the moving groove is provided on the top of the sliding plate 52, and the movement of the sliding plate 52 is more stable under the cooperation of the moving block and the moving groove, because the moving block and the moving groove are arranged in a T shape,Thus, the moving block can hang 52, reducing the force on the second electric telescopic rod 51. One end of the two sets of connecting rods 53 are hinged to the right side wall of the sliding plate 52. A fixed block 50 is provided at the bottom of the workbench 1. The right side wall of the fixed block 50 is provided with a second electric telescopic rod 51. One end of the second electric telescopic rod 51 is connected to the left side wall of the sliding plate 52.

[0029] By adopting the above technical solution, both ends of the sling can be folded at the same time.

[0030] like Figure 8 As shown, the extrusion assembly 59 includes a mounting block 590 provided at one end of the first rotating shaft 5003, and two groups of second sliding rods 592 are movably penetrated through the rear side wall of the mounting block 590, one end of the two groups of second sliding rods 592 are connected to the rear side wall of the vacuum suction cup 504, and the other end of the two groups of second sliding rods 592 is provided with a movable plate 591, and the rear side wall of the mounting block 590 is provided with a third electric telescopic rod 593, and one end of the third electric telescopic rod 593 is connected to the front side wall of the movable plate 591.

[0031] By adopting the above technical solution, the folded sling can be squeezed and fixed on the ton bag.

[0032] like Fig. 9 As shown, the feed conveying mechanism 6 includes a support frame 67 provided on the front side wall of the workbench 1, a mounting frame 63 is provided on the top of the support frame 67, a third rotating shaft 66 is provided in the mounting frame 63, two ends of the third rotating shaft 66 are respectively connected with two bearings provided on the upper and lower side walls in the mounting frame 63, a second conveying roller 65 is sleeved and installed on the outer wall of the third rotating shaft 66, a second rotating shaft 62 is connected to the bottom of the mounting frame 63 through bearing three, a motor 61 is provided on the top of the mounting frame 63, an output end of the motor 61 is connected to one end of the second rotating shaft 62, and a first conveying roller 64 matching the second conveying roller 65 is sleeved and installed on the outer wall of the second rotating shaft 62.

[0033] By adopting the above technical solution, the sling can be transported, and the sling is transported vertically.

[0034] like Fig. 9 As shown, a guide funnel 60 is provided on the rear side wall of the installation frame 63, and the guide funnel 60 cooperates with the gap between the second conveying roller 65 and the first conveying roller 64. The guide funnel 60 can be used to guide the conveying direction of the sling. At this time, the two groups of vertical conveyor belt devices 4 start to work, and the sling is transported through the gap between the two groups of vertical conveyor belt devices 4.

[0035] By adopting the above technical solution, the sling can accurately enter the gap between the two sets of vertical conveyor belt devices 4.

[0036] like Figure 1As shown, the top of the workbench 1 is provided with multiple groups of grooves 12, and guide rollers 13 are rotatably connected and installed in the multiple groups of grooves 12. The front side wall of the workbench 1 is provided with a groove 14, and a fourth rotating shaft 16 is arranged in the groove 14. The two ends of the fourth rotating shaft 16 are respectively connected to the four bearings arranged on the left and right side walls in the groove 14, and a roller 15 is sleeved and installed on the outer wall of the fourth rotating shaft 16.

[0037] By adopting the above technical solution, when the sling is sewn, the ton bag is rotated with the help of the roller 15 and the guide roller 13. With the cooperation of the roller 15 and the guide roller 13, the ton bag rotates more smoothly, and the sewing position of the ton bag is changed to sew the next sling.

[0038] Working principle: put the ton bag on the left side of the workbench 1, the staff controls the controller 11, the controller 11 controls the first electric telescopic rod 30 to work, the first electric telescopic rod 30 drives the moving seat 32 and the support rod 34 to move, the support rod 34 can open the ton bag, and then use the roller 15 and the guide roller 13 to rotate the ton bag, so that the position where the sling needs to be sewn on the ton bag is laid on the workbench 1, the staff inserts one end of the sling into the installation frame 63, the motor 61 drives the second rotating shaft 62 to rotate, the second rotating shaft 62 drives the first conveying roller 64 to rotate, and the sling can be conveyed with the cooperation of the second conveying roller 65. The conveying direction of the sling can be guided by the guide funnel 60. At this time, the two sets of vertical conveyor belt devices 4 start to work, and the sling passes through the two The sling is transported through the gap between the two groups of vertical conveyor belt devices 4. When the sling passes through the two groups of vertical conveyor belt devices 4 and the reserved lengths on the front and rear sides are the same, the controller 11 controls the driving motor of the vertical conveyor belt device 4 to stop working (this is the prior art), and then the second electric telescopic rod 51 drives the sliding plate 52 to move, the sliding plate 52 drives the connecting rod 53 to rotate, the connecting rod 53 drives the connecting plate 502 to move, the connecting plate 502 drives the vertical rod 503 to rotate in the guide groove 5005, the vertical rod 503 drives the fixing box 58 to rotate, and under the action of the limit block 57 and the limit groove 55, the fixing box 58 drives the vacuum suction cup 504 to move more stably, and the external negative pressure pump can adsorb and fix the sling in the vacuum through the negative pressure pipe 506 and the negative pressure hole 505 On the suction cup 504, when the vacuum suction cup 504 drives the sling to move, the fixed box 58 drives the vertical rod 503 to move, and the guide block 500 moves in the arc guide groove 501. The guide groove 500 moves upward with the cooperation of the arc guide groove 501. The guide block 500 drives the lifting ring 5001 and the connecting rod 508 to move upward. The connecting rod 508 drives the rack 507 to move upward. The rack 507 drives the gear 5004 to rotate. The gear 5004 drives the first rotating shaft 5003 to rotate. The first rotating shaft 503 drives the fixed box 58 and the vacuum suction cup 504 to fold. The vacuum suction cup 504 drives the sling to fold. Then the third electric telescopic rod 593 drives the moving plate 591 to move. The moving plate 591 drives the second sliding rod 59 2 moves downward, the second slide bar 592 drives the vacuum suction cup 504 to move downward, the vacuum suction cup 504 can lay the sling on the ton bag, the first sliding seat 7 moves left and right on the first guide rail 8, the first sliding seat 7 drives the sewing machine 2 to move left and right, the second sliding seat 9 moves forward and backward on the second guide rail 10, the second sliding seat 9 drives the sewing machine 2 to move forward and backward, the sewing machine 2 can sew the sling (the vacuum suction cup 504 is in a rectangular frame shape, so that the sewing machine 2 can sew the sling through the opening of the vacuum suction cup 504), after sewing is completed, the external negative pressure pump stops working, the vacuum suction cup 504 is separated from the sling, and then the second electric telescopic rod 51 is reset, so that the guide groove 500 will move downward with the cooperation of the arc guide groove 501,Therefore, the vacuum suction cup 504 can be turned over and reset under the cooperation of the rack 507 and the gear 5004, the same as the initial state, so as to sew the next sling, and then the ton bag is rotated by the roller 15 and the guide roller 13 to change the sewing position of the ton bag.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic ton bag sewing device, comprising a workbench (1), a rear side wall of the workbench (1) is provided with a propping mechanism (3), two sets of first guide rails (8) are provided on the right side of the top of the workbench (1), the tops of the two sets of first guide rails (8) are slidably connected to a first sliding seat (7), the top of the first sliding seat (7) is provided with a second guide rail (10), the top of the second guide rail (10) is slidably connected to a second sliding seat (9), a sewing machine (2) is provided on the top of the second sliding seat (9), and a controller (11) is provided on the front side wall of the sewing machine (2), characterized in that: Two sets of matched conveyor belt devices (4) are vertically arranged on the top of the workbench (1), and folding mechanisms (5) are arranged on the front and rear sides of the two sets of conveyor belt devices (4). A feeding and conveying mechanism (6) matched with the two sets of conveyor belt devices (4) is arranged on the front side wall of the workbench (1).

2. The automatic ton bag sewing device according to claim 1, characterized in that: The folding mechanism (5) comprises arc plates (54) provided on both the front and rear sides of the two groups of conveyor belt devices (4); the bottoms of the two groups of arc plates (54) are connected to the top of the workbench (1); the front side walls of the two groups of arc plates (54) are provided with limit grooves (55) and arc guide grooves (501); the two groups of limit grooves (55) are provided with limit blocks (57) in a sliding connection; the rear side walls of the two groups of limit blocks (57) are provided with limit plates (56); the side walls away from the two groups of limit blocks (57) are provided with fixed boxes (58); the sides away from the two groups of fixed boxes (58) are provided with vacuum suction cups (504); the vacuum suction cups (504) The vacuum suction cup (504) is arranged in a rectangular frame shape, a negative pressure tube (506) is arranged on the rear side wall of the vacuum suction cup (504), a plurality of negative pressure holes (505) are arranged on the front side wall of the vacuum suction cup (504), and vertical rods (503) are arranged at the bottom of the two sets of fixing boxes (58). A support plate (509) is sleeved and installed on the outer wall of the vertical rod (503). The bottom of the support plate (509) is slidably connected to the top of the workbench (1). Two sets of guide grooves (5005) are opened on the top of the workbench (1), and the vertical rod (503) is slidably connected in the guide grooves (5005). A limit ring (5000) is sleeved and installed on the outer wall of the vertical rod (503). 03) The outer wall is sleeved with a lifting ring (5001), the outer wall of the lifting ring (5001) is provided with a guide block (500) slidably connected to the arc guide groove (501), the top of the fixed box (58) is movably penetrated by a rack (507), the bottom of the rack (507) is provided with a connecting rod (508), one end of the connecting rod (508) is connected to the outer wall of the lifting ring (5001), the inner left wall of the fixed box (58) is connected with a first rotating shaft (5003) through a bearing, the outer wall of the first rotating shaft (5003) is sleeved with a gear (5004) meshing with the rack (507), the first rotating shaft (5003 ) one end of which passes through the right side wall of the fixed box (58) and is connected to an extrusion assembly (59) provided on the outside, the bottoms of the two groups of vertical rods (503) are connected to a connecting plate (502) through a bearing, the outer side walls of the two groups of connecting plates (502) are provided with connecting rods (53), the bottom of the workbench (1) is slidably connected to a sliding plate (52), one end of the two groups of connecting rods (53) are hinged to the right side wall of the sliding plate (52), the bottom of the workbench (1) is provided with a fixed block (50), the right side wall of the fixed block (50) is provided with a second electric telescopic rod (51), one end of the second electric telescopic rod (51) is connected to the left side wall of the sliding plate (52).

3. The automatic sewing device for ton bags according to claim 2, characterized in that: The extrusion assembly (59) comprises a mounting block (590) provided at one end of the first rotating shaft (5003); two groups of second sliding rods (592) are movably provided through the rear side wall of the mounting block (590); one end of the two groups of second sliding rods (592) are connected to the rear side wall of the vacuum suction cup (504); a movable plate (591) is provided at the other end of the two groups of second sliding rods (592); a third electric telescopic rod (593) is provided on the rear side wall of the mounting block (590); one end of the third electric telescopic rod (593) is connected to the front side wall of the movable plate (591).

4. The automatic ton bag sewing device according to claim 2, characterized in that: The outer side wall of the vertical rod (503) is provided with two groups of lifting grooves (5002), and the inner side wall of the lifting ring (5001) is provided with two groups of lifting blocks slidably connected to the lifting grooves (5002).

5. The automatic ton bag sewing device according to claim 2, characterized in that: A moving groove is provided at the bottom of the workbench (1), and a moving block is provided at the top of the sliding plate (52) and is slidably connected to the moving groove. The moving block and the moving groove are arranged in a T shape.

6. The automatic ton bag sewing device according to claim 1, characterized in that: The feeding conveying mechanism (6) comprises a support frame (67) provided on the front side wall of the workbench (1), a mounting frame (63) provided on the top of the support frame (67), a third rotating shaft (66) provided in the mounting frame (63), two ends of the third rotating shaft (66) respectively connected to two bearings provided on the upper and lower side walls of the mounting frame (63), a second conveying roller (65) is sleeved and installed on the outer wall of the third rotating shaft (66), a second rotating shaft (62) is connected to the bottom of the mounting frame (63) via bearing three, a motor (61) is provided on the top of the mounting frame (63), an output end of the motor (61) is connected to one end of the second rotating shaft (62), and a first conveying roller (64) matching with the second conveying roller (65) is sleeved and installed on the outer wall of the second rotating shaft (62).

7. The automatic ton bag sewing device according to claim 6, characterized in that: A guide funnel (60) is provided on the rear side wall of the installation frame (63), and the guide funnel (60) matches the gap between the second conveying roller (65) and the first conveying roller (64).

8. The automatic ton bag sewing device according to claim 1, characterized in that: The support mechanism (3) comprises two groups of first sliding bars (31) provided on the rear side wall of the workbench (1), one end of the two groups of first sliding bars (31) being provided with a connecting seat (33), the outer walls of the two groups of first sliding bars (31) being sleeved with a moving seat (32), the rear side wall of the workbench (1) being provided with a first electric telescopic rod (30), one end of the first electric telescopic rod (30) being connected to the front side wall of the moving seat (32), and a support rod (34) being provided on the left side wall of the moving seat (32).

9. The automatic ton bag sewing device according to claim 1, characterized in that: The top of the workbench (1) is provided with a plurality of groups of grooves (12), and guide rollers (13) are rotatably connected and installed in the plurality of groups of grooves (12).

10. The automatic ton bag sewing device according to claim 1, characterized in that: The front side wall of the workbench (1) is provided with a slot (14), a fourth rotating shaft (16) is provided in the slot (14), two ends of the fourth rotating shaft (16) are respectively connected to four bearings provided on the left and right side walls in the slot (14), and a roller shaft (15) is sleeved and mounted on the outer wall of the fourth rotating shaft (16).

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