Edge folding and gluing device

Abstract

An edge folding and gluing device is used for solving the problems that in the background technology, an edge folding and gluing device in the prior art can conduct hot melting and edge sealing on the bottom edge of a packaging bag, but an operator needs to frequently place the packaging bag in a clamping jaw and waits for a second hydraulic rod to drive the packaging bag to move towards a working barrel; in order to solve the technical problems that in practice, a manufacturer needs a large number of packaging bags needing hot melting and edge sealing, and time consumed in the process is long, the packaging bag edge sealing device comprises a workbench, a first conveying device used for conveying the packaging bags is arranged on the workbench, a carrying assembly used for carrying the packaging bags to the first conveying device is arranged on the workbench, and a through hole is formed in a mounting plate; a second conveying device is arranged below the mounting plate, a plurality of pushing blocks used for pushing packaging bags are arranged on the second conveying device, the pushing blocks penetrate through the through holes in a sliding mode and vertically extend upwards, a placing roller used for placing the adhesive tape is arranged on the workbench, and a plurality of edge folding blocks used for folding the edges of the adhesive tape are arranged on the workbench; a heating roller used for adhering the adhesive tape to the bottom edge of the packaging bag is arranged on the workbench.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag processing, in particular to a folding and gluing device. Background Art

[0002] The conventional method of sealing the bottom of a plastic woven bag is to first use a sewing machine to sew the seam and the bag together. In order to consider the air tightness of the bottom edge of the bag, it is usually necessary to use a hot melt machine to heat-melt the bottom edge of the bag.

[0003] The hot melt bottom sealing device of the packaging bag in the prior art, such as the utility model patent document with authorization announcement number "CN214002243U" and patent name "A Plastic Composite Woven Bag Hot Melt Adhesive Bottom Sealing Machine", discloses a hot melt bottom sealing device for packaging bags, including a device body and a base, the device body is symmetrically arranged on the left and right sides of the top of the base, a second motor is fixedly connected to the center of the bottom of the base, a cooling fan is rotatably connected to the top of the second motor through a bearing, a working barrel is arranged on the top of the support seat, a first motor is fixedly connected to the opposite ends of the two working barrels, a heating rod is arranged in the center of the opposite side of the two first motors, and a first spring chamber is fixedly connected to the top and bottom of the opposite side of the two working barrels.

[0004] The above patent document states that the bottom edge of the packaging bag can be hot-melt sealed, but the operator needs to frequently place the packaging bag in the clamp and wait for the second hydraulic rod to drive the packaging bag to move toward the working barrel, and then remove the packaging bag from the clamp after the hot-melt is completed. However, in practice, manufacturers need to perform hot-melt sealing on a large number of packaging bags, and the above operation process consumes a long time. Utility Model Content

[0005] The utility model aims to address the deficiencies of the prior art and propose a folding and gluing device to solve the technical problem that the folding and gluing device of the prior art mentioned in the background technology can perform hot-melt sealing on the bottom edge of the packaging bag, but the operator needs to frequently place the packaging bag in the clamp and wait for the second hydraulic rod to drive the packaging bag to move toward the working barrel, and then remove the packaging bag from the clamp after the hot-melt is completed. However, in practice, manufacturers need to perform hot-melt sealing on a large number of packaging bags, and the above operation process consumes a long time.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A folding and gluing device comprises a workbench, wherein a first conveying device for conveying packaging bags is provided on the workbench, a conveying assembly for conveying the packaging bags to the first conveying device is provided on the workbench, a mounting plate is provided on the side of the first conveying device away from the conveying assembly and the mounting plate is fixedly mounted on the workbench, a through hole is provided on the mounting plate, a second conveying device is provided below the mounting plate and a plurality of push blocks for pushing the packaging bags are provided on the second conveying device, the push blocks slide through the through holes and extend vertically upward, a third conveying device is provided on the side of the second conveying device away from the first conveying device, a placing roller for placing an adhesive tape is provided on the workbench, a plurality of folding blocks for folding the adhesive tape are provided on the workbench, and two heating rollers for adhering the adhesive tape to the bottom edge of the packaging bag are provided on the workbench.

[0008] Working principle:

[0009] First, the operator places the packaging bag that needs to be hot-melt sealed on the first conveyor through the handling assembly, and then the first conveyor transfers the packaging bag to between two adjacent push blocks on the mounting plate. Then the push block on the second conveyor drives the packaging bag to be transported toward the third conveyor. When the packaging bag is on the third conveyor, its bottom edge extends out of the third conveyor belt, and then the tape on the placement roller is folded on the bottom edge of the packaging bag through multiple folding blocks, and then two heating rollers perform hot-melt sealing on both sides of the bottom edge of the packaging bag.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] First, a transport component is provided, and the transport component can transport the packaging bag to the first conveying device, so as to facilitate the transport of the packaging bag.

[0012] Second, a push block is provided, which can push the packaging bags on the mounting plate to the third conveying device in sequence, thereby completing the sequential conveying of individual packaging bags.

[0013] Third, a folding block is provided, which can fold the tape to facilitate folding the tape on both sides of the bottom edge of the packaging bag.

[0014] Fourth, a heating roller is provided, which can perform hot-melt edge sealing on the adhesive tapes on both sides of the bottom edge of the packaging bag, thereby completing the hot-melt edge sealing operation of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of another viewing angle of an embodiment of the utility model;

[0017] Figure 3It is a schematic diagram of the assembly structure of the slider and the guide rail;

[0018] Figure 4 It is a schematic diagram of the structure of the handling component;

[0019] Figure 5 for Figure 1 Schematic diagram of the structure enlarged at point A in the middle.

[0020] Explanation of the accompanying drawings: workbench 1, first conveying device 2, mounting plate 3, through hole 4, second conveying device 5, pushing block 6, third conveying device 7, placing roller 8, folding block 9, heating roller 10, mounting block 11, first motor 12, rotating block 13, connecting rod 14, slider 15, guide rail 16, negative pressure suction cup 17, slide groove 18, strip groove 19, first rotating rod 20, first pulley 21, first belt 22, mounting column 23, first spring 24, penetration rod 25, conveying wheel 26, second rotating rod 27, first sprocket 28, first chain 29, third rotating rod 30, second pulley 31, second belt 32, second sprocket 33, second chain 34, third sprocket 35, third chain 36, second motor 37, connecting block 38, single groove 39, second spring 40, close roller 41, third motor 42, bevel gear 43, first gear 44, heating box 45. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example:

[0023] like Figure 1 As shown, a folding and gluing device comprises a workbench 1, wherein the workbench 1 is two upright plates and a first conveying device 2, a second conveying device 5 and a third conveying device 7 are all arranged between the two plates. A first conveying device 2 for conveying packaging bags is arranged on the workbench 1, and the first conveying device 2 comprises two first rotating rods 20, two first belt pulleys 21 and a first belt 22. The two first rotating rods 20 are rotatably arranged on the workbench 1, and the two first belt pulleys 21 are respectively fixed on the two first rotating rods 20. The first belt 22 is sleeved on the outer rings of the two first belt pulleys 21. The two first rotating rods 20 can drive the two first pulleys 21 to rotate, thereby driving the first belt 22 to transport the packaging bags. A hollow mounting column 23 is fixedly provided on the workbench 1, and a first spring 24 is fixedly provided in the mounting column 23. A penetration rod 25 is slidably provided in the mounting column 23, and the penetration rod 25 is fixedly connected to the first spring 24. A conveying wheel 26 is rotatably provided on the side of the penetration rod 25 away from the first spring 24, and the conveying wheel 26 abuts against the first belt 22. The first spring 24 can make the conveying wheel 26 abut against the first belt 22, thereby facilitating the transportation of the packaging bags on the first belt 22.

[0024] The workbench 1 is provided with a transport assembly for transporting packaging bags to the first conveying device 2, and the transport assembly includes a mounting block 11, a first motor 12, a rotating block 13, a connecting rod 14, a slider 15, a guide rail 16 and a plurality of negative pressure suction cups 17. The mounting block 11 is fixedly mounted on the workbench 1, the first motor 12 is fixedly mounted on the mounting block 11, the rotating block 13 is rotatably mounted on the mounting block 11, and the end of the rotating block 13 is fixedly connected to the output end of the first motor 12, and the rotating block 13 can be driven to rotate by the first motor 12. A bald treasure cover-shaped slide groove 18 is provided on the mounting block 11, and a slidable groove 18 is provided on the rotating block 13. There is a strip groove 19, the connecting rod 14 slides through the strip groove 19 and is slidably connected with the slide groove 18, the connecting rod 14 can slide between the strip groove 19 and the slide groove 18 to avoid collision of local mechanical structures, the slider 15 is slidably connected with the connecting rod 14, the guide rail 16 is fixed on the mounting block 11 and the slider 15 is slidably connected with the guide rail 16, the slider 15 can slide on the guide rail 16 to facilitate the movement of the connecting rod 14 on the guide rail 16, the negative pressure suction cup 17 is fixed on the slider 15 and the negative pressure suction cup 17 is used to absorb the packaging bag, the negative pressure suction cup 17 can absorb the packaging bag and place the packaging bag on the first belt 22.

[0025] The first conveying device 2 is provided with a mounting plate 3 on the side away from the handling component, and the mounting plate 3 is fixed on the workbench 1. A through hole 4 is opened on the mounting plate 3. A second conveying device 5 is provided below the mounting plate 3, and a plurality of push blocks 6 for pushing the packaging bags are provided on the second conveying device 5. The push blocks 6 slide through the through hole 4 and extend vertically upward. The push blocks 6 can push the packaging bags on the mounting plate 3 through the through hole 4, and the distance between the two packaging bags is controlled by two adjacent push blocks 6, so as to facilitate the single conveying of the packaging bags. The second conveying device 5 includes two second rotating rods 27, two first sprockets 28 and a first chain 29. The two second rotating rods 27 are rotatably arranged on the workbench 1. The two first sprockets 28 are respectively fixed on the two second rotating rods 27. The first chain 29 is sleeved on the outer rings of the two first sprockets 28. A plurality of the pushing blocks 6 are evenly fixed on the first chain 29. The cooperation between the second rotating rods 27 and the first sprockets 28 facilitates the rotation of the first chain 29, thereby driving the pushing blocks 6 to move at a uniform speed on the first chain 29.

[0026] A third conveying device 7 is provided on the side of the second conveying device 5 away from the first conveying device 2. The third conveying device 7 includes two third rotating rods 30, two second pulleys 31 and a second belt 32. The two third rotating rods 30 are rotatably arranged on the workbench 1, and the two second pulleys 31 are respectively fixed on the two third rotating rods 30. The second belt 32 is sleeved on the outer rings of the two second pulleys 31. The cooperation between the third rotating rod 30 and the second pulley 31 can facilitate the rotation of the second belt 32, thereby facilitating the transportation of the packaging bags on the mounting plate 3.

[0027] The workbench 1 is provided with a placing roller 8 for placing the tape, and the workbench 1 is provided with a connecting block 38. The placing roller 8 is fixed on the connecting block 38. A single groove 39 is opened on the connecting block 38. A second spring 40 is fixed in the single groove 39. A close roller 41 is slidably provided in the single groove 39, and the close roller 41 is fixedly connected to the second spring 40. The placing roller 8 and the close roller 41 are parallel to each other and correspond to each other up and down. The cooperation of the second spring 40 can make the close roller 41 and the tape on the placing roller 8 close to each other, thereby reducing the falling of the tape when it rotates. The tape is kraft paper and one side is PP material. By heating the PP material, the kraft paper can be adhered to the bottom edge of the packaging bag. The workbench 1 is also provided with two rotating shafts, one is placed horizontally, and the other is placed vertically. The tape first passes around the bottom of the horizontal rotating shaft and then is wound around the vertically placed rotating shaft. At this time, the tape is parallel to one side of the workbench 1.

[0028] The workbench 1 is provided with a plurality of folding blocks 9 for folding the tape, and the plurality of folding blocks 9 are all L-shaped and their openings face the third conveying device 7, and the opening angles of the plurality of folding blocks 9 gradually decrease along the conveying direction of the third conveying device 7, and the tape passes through the folding blocks 9 with smaller opening angles in sequence from the folding blocks 9 with larger opening angles, so that the tape is folded by the plurality of folding blocks 9 and the bottom edge of the packaging bag on the third conveying device 7 is located between the two ends of the tape when the tape is folded, and one end of the tape is folded in the initial state and is located between the two heating rollers 10.

[0029] The workbench 1 is provided with two heating rollers 10 for adhering the adhesive tape to the bottom edge of the packaging bag. The workbench 1 is fixedly provided with a third motor 42. The output end of the third motor 42 and one of the heating rollers 10 are fixedly provided with a bevel gear 43, and the two bevel gears 43 are meshed with each other. The third motor 42 can drive the two bevel gears 43 to rotate, thereby driving the heating rollers 10 to rotate. The two heating rollers 10 are fixedly provided with a first gear 44, and the two first gears 44 are meshed with each other. The cooperation of the two first gears 44 can drive the two heating rollers 10 to rotate, and the two heating rollers 10 The opposite rotation direction facilitates the transportation of the packaging bag and the tape between the two heating rollers 10. The two heating rollers 10 are both hollow structures. A heating box 45 is fixedly provided on the workbench 1 and the heating box 45 is connected to the two heating rollers 10. The heating box 45 is a steam heating box 45. The steam heating box 45 can heat the heating roller 10 through a circulation pipe, and the circulation pipe and the heating pipe are connected through a bearing, so as to melt the PP material on the tape to hot-melt seal the bottom edge of the packaging bag. An external cutting device is provided on the side of the heating roller 10 away from the folding block 9, and the continuous tape can be cut by the external cutting device.

[0030] A second sprocket 33 is fixedly provided on one of the first rotating rods 20 and one of the second rotating rods 27, and a second chain 34 is sleeved on the two second sprockets 33. The first rotating rod 20 and the second rotating rod 27 can be synchronously driven to rotate by the second sprocket 33 and the second chain 34. A third sprocket 35 is fixedly provided on the other second rotating rod 27 and one of the third rotating rods 30, and a third chain 36 is sleeved on the two third sprockets 35. The second rotating rod 27 and the third rotating rod 30 can be synchronously driven to rotate by the third sprocket 35 and the third chain 36. A second motor 37 is fixedly provided on the workbench 1, and an output end of the second motor 37 is fixedly connected to the first rotating rod 20, and the first rotating rod 20 can be driven to rotate by the first rotating rod 20.

[0031] Working principle:

[0032] First, the operator starts the first motor 12, and the first motor 12 drives the rotating block 13 to rotate, and then the rotating block 13 drives the connecting rod 14 to slide in the slide groove 18 on the mounting block 11 and the strip groove 19 on the rotating block 13. The movement of the connecting rod 14 drives the slider 15 to move on the guide rail 16, and the connecting rod 14 can slide vertically on the slider 15, and then the slider 15 can drive the negative pressure suction cup 17 to suck the packaging bag and place the packaging bag on the first belt 22.

[0033] The operator then starts the second motor 37, which drives the first rotating rod 20 and the first pulley 21 to rotate, thereby driving the first belt 22 to rotate, so that the packaging bag can be transported on the first belt 22, and the conveying wheel 26 can make the packaging bag close to the first belt 22, thereby reducing the deviation of the packaging bag during transportation.

[0034] Afterwards, the packaging bag is conveyed to the mounting plate 3 and is located between two adjacent push blocks 6. Then the push block 6 drives the packaging bag to be conveyed toward the second belt 32. When the packaging bag is conveyed to the second belt 32, the tape on the placement roller 8 is folded by multiple folding blocks 9 to fold the two ends of the tape onto both sides of the bottom edge of the packaging bag. The two heating rollers 10 can perform hot-melt edge sealing on the packaging bag and the tape conveyed on the second belt 32.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A folding gluing device, characterized in that: The invention comprises a workbench (1), wherein a first conveying device (2) for conveying packaging bags is provided on the workbench (1), a conveying assembly for conveying packaging bags to the first conveying device (2) is provided on the workbench (1), a mounting plate (3) is provided on the side of the first conveying device (2) away from the conveying assembly, and the mounting plate (3) is fixed on the workbench (1), a through hole (4) is opened on the mounting plate (3), a second conveying device (5) is provided below the mounting plate (3), and the second conveying device (5) is provided with a plurality of push blocks (6) for pushing the packaging bags, the push blocks (6) slide through the through holes (4) and extend vertically upward, a third conveying device (7) is provided on the side of the second conveying device (5) away from the first conveying device (2), a placing roller (8) for placing adhesive tape is provided on the workbench (1), a plurality of folding blocks (9) for folding the adhesive tape are provided on the workbench (1), and two heating rollers (10) for adhering the adhesive tape to the bottom edge of the packaging bag are provided on the workbench (1).

2. The hem gluing device according to claim 1, characterized in that: The transport assembly comprises a mounting block (11), a first motor (12), a rotating block (13), a connecting rod (14), a sliding block (15), a guide rail (16) and a plurality of negative pressure suction cups (17); the mounting block (11) is fixedly mounted on the workbench (1); the first motor (12) is fixedly mounted on the mounting block (11); the rotating block (13) is rotatably mounted on the mounting block (11) and an end of the rotating block (13) is fixedly connected to an output end of the first motor (12); the mounting block (11) A bald-roof-shaped slide groove (18) is provided on the mounting block (11); a strip groove (19) is provided on the rotating block (13); the connecting rod (14) slides through the strip groove (19) and is slidably connected to the slide groove (18); the sliding block (15) is slidably connected to the connecting rod (14); the guide rail (16) is fixedly mounted on the mounting block (11) and the sliding block (15) is slidably connected to the guide rail (16); the negative pressure suction cup (17) is fixedly mounted on the sliding block (15) and the negative pressure suction cup (17) is used to suck the packaging bag.

3. The hem gluing device according to claim 1, characterized in that: The first conveying device (2) comprises two first rotating rods (20), two first belt pulleys (21) and a first belt (22); the two first rotating rods (20) are rotatably arranged on the workbench (1); the two first belt pulleys (21) are respectively fixed on the two first rotating rods (20); and the first belt (22) is sleeved on the outer rings of the two first belt pulleys (21).

4. The hem gluing device according to claim 3, characterized in that: A hollow mounting column (23) is fixedly provided on the workbench (1), a first spring (24) is fixedly provided in the mounting column (23), a penetration rod (25) is slidably provided in the mounting column (23), and the penetration rod (25) is fixedly connected to the first spring (24), and a conveying wheel (26) is rotatably provided on the side of the penetration rod (25) away from the first spring (24), and the conveying wheel (26) is in contact with the first belt (22).

5. The hem gluing device according to claim 3, characterized in that: The second conveying device (5) comprises two second rotating rods (27), two first sprocket wheels (28) and a first chain (29); the two second rotating rods (27) are rotatably arranged on the workbench (1); the two first sprocket wheels (28) are respectively fixed on the two second rotating rods (27); the first chain (29) is sleeved on the outer rings of the two first sprocket wheels (28); and a plurality of pushing blocks (6) are evenly fixed on the first chain (29).

6. The hem gluing device according to claim 5, characterized in that: The third conveying device (7) comprises two third rotating rods (30), two second belt pulleys (31) and a second belt (32); the two third rotating rods (30) are rotatably arranged on the workbench (1); the two second belt pulleys (31) are respectively fixed on the two third rotating rods (30); and the second belt (32) is sleeved on the outer rings of the two second belt pulleys (31).

7. The hem gluing device according to claim 6, characterized in that: A second sprocket (33) is fixedly provided on one of the first rotating rods (20) and one of the second rotating rods (27), and a second chain (34) is sleeved on the two second sprockets (33); a third sprocket (35) is fixedly provided on the other second rotating rod (27) and one of the third rotating rods (30), and a third chain (36) is sleeved on the two third sprockets (35); a second motor (37) is fixedly provided on the workbench (1), and an output end of the second motor (37) is fixedly connected to the first rotating rod (20).

8. The hem gluing device according to claim 1, characterized in that: The workbench (1) is provided with a connecting block (38), the placing roller (8) is fixedly arranged on the connecting block (38), the connecting block (38) is provided with a single groove (39), a second spring (40) is fixedly arranged in the single groove (39), a close contact roller (41) is slidably arranged in the single groove (39), and the close contact roller (41) is fixedly connected to the second spring (40), and the placing roller (8) and the close contact roller (41) are parallel to each other and correspond to each other up and down.

9. The hem gluing device according to claim 1, characterized in that: The plurality of folding blocks (9) are all L-shaped and the openings of the folding blocks (9) are oriented toward the third conveying device (7). The opening angles of the plurality of folding blocks (9) gradually decrease along the conveying direction of the third conveying device (7).

10. The hem gluing device according to claim 1, characterized in that: A third motor (42) is fixedly arranged on the workbench (1); a bevel gear (43) is fixedly arranged on the output end of the third motor (42) and one of the heating rollers (10), and the two bevel gears (43) are meshed with each other; a first gear (44) is fixedly arranged on the two heating rollers (10), and the two first gears (44) are meshed with each other; the two heating rollers (10) are both hollow structures; a heating box (45) is fixedly arranged on the workbench (1), and the heating box (45) is electrically connected to the two heating rollers (10).

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