A bag folding device

Abstract

The utility model relates to the technical field of edge folding equipment, and disclose a kind of edge folding equipment for packaging bag production, the edge folding and positioning of existing edge folding device to packaging bag are divided into two operation steps, positioning and edge folding cannot be controlled simultaneously, increase the processing procedure, reduce the processing efficiency problem, it includes workstation, the top of the workstation is fixedly installed with support frame, the top of support frame is equipped with compression plate, the four corners of support frame are movably inserted with inserting rod, the top four corners of compression plate are fixedly installed in the bottom of four inserting rods, the upper end of four inserting rods is all equipped with spring, the both ends of four springs are respectively connected with inserting rod and support frame fixedly, the top of support frame is fixedly installed with connecting frame;The edge folding and positioning of this edge folding device to packaging bag are divided into two operation steps, positioning and edge folding can be controlled simultaneously, thereby reduce the processing procedure, improve the processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of folding equipment, specifically a folding equipment for packaging bag production. Background Technology

[0002] Folding equipment for packaging bags is a mechanical device used to fold the edges of packaging bags. It folds the edges of packaging bags at preset angles and sizes to facilitate subsequent sealing, sewing, or aesthetic finishing. It typically consists of support and positioning components, a drive system, a folding mechanism, and auxiliary components, enabling high-precision and high-efficiency folding operations. Its applications are wide-ranging. In food packaging, it folds the edges of food bags for subsequent sealing, ensuring airtightness and hygiene. In pharmaceutical packaging, it meets the high sealing and sterility requirements of drug packaging bags. It also plays an important role in daily chemical products, industrial packaging, tobacco and alcohol packaging, valuable goods packaging, document packaging, and express delivery packaging, improving product appearance quality and providing dust and moisture protection.

[0003] Existing folding devices divide the folding and positioning of packaging bags into two operation steps, which cannot control the positioning and folding simultaneously, thus increasing the processing steps and reducing processing efficiency. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a folding device for packaging bag production, which effectively solves the problem that the existing folding device divides the folding and positioning of the packaging bag into two operation steps, and cannot control the positioning and folding simultaneously at one time, which increases the processing steps and reduces the processing efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a folding device for packaging bag production, comprising a workbench, a support frame fixedly installed on the top of the workbench, a pressing plate provided above the support frame, insert rods movably connected to the four corners of the support frame, springs sleeved on the upper ends of the four insert rods, and the two ends of the four springs respectively fixedly connected to the insert rods and the support frame, a connecting frame fixedly installed on the top of the support frame, a servo motor fixedly installed on one side of the connecting frame, a transmission component provided at the output end of the servo motor, a folding plate provided on one side above the workbench, the transmission component being connected to the folding plate and the pressing plate, and when the servo motor operates, power is output to the folding plate and the pressing plate through the transmission component, causing the pressing plate to move down to press the packaging bag, and causing the folding plate to move down synchronously to fold the packaging bag.

[0006] Preferably, the transmission assembly includes a driving bevel gear, which is fixedly installed at the output end of the servo motor. A driven bevel gear is meshed with the lower part of the surface of the driving bevel gear. The top of the driven bevel gear is rotatably connected to the inner top of the connecting frame through a shaft seat. A threaded rod is fixedly installed at the bottom of the driven bevel gear. A threaded sleeve is threadedly connected to the surface of the threaded rod. An opening is provided on one side of the support frame. The threaded sleeve is inserted into the inside of the limiting groove. Limiting grooves are provided on both sides of the opening. Limiting strips are fixedly installed on both the front and rear sides of the threaded sleeve. The two limiting strips are slidably installed inside the two limiting grooves. The bottom of the threaded sleeve is fixedly connected to the folded edge plate.

[0007] Preferably, a transmission rack is fixedly installed on one side of the threaded sleeve, and a toothed column is meshed with the lower part of one side of the transmission rack. Both ends of the toothed column are rotatably connected to the inner top of the support frame through a rotating seat. A pushing rack is meshed with the lower part of the toothed column. A roller is tightly attached to the inclined surface of one end of the pushing rack. A support arm is rotatably installed on the lower part of the roller. The bottom of the support arm is fixedly connected to the middle part of the top of the pressure plate.

[0008] Preferably, a slider is fixedly installed at one end of the upper part of the pushing rack, and a groove is opened in the inner top plate of the support frame, and the slider is slidably installed inside the groove.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the operator places the packaging bag on the top of the workbench and aligns the folded edge of the packaging bag with the folding plate and extends it out of the workbench surface. Then, the operator starts the servo motor to drive the active bevel gear to rotate. The active bevel gear drives the threaded rod to rotate through the driven bevel gear. When the threaded rod rotates, it drives the threaded sleeve to move down. When the threaded sleeve moves down, it drives the two limit strips to slide along the inside of the two limit grooves, which increases the stability of the threaded sleeve when it moves. When the threaded sleeve moves down, it drives the gear column to rotate through the transmission rack. When the gear column rotates, it drives the pushing rack to move. When the pushing rack moves, it drives the slider to slide inside the slide groove, which increases the stability of the pushing rack when it moves.

[0010] As the pushing rack moves, it smoothly pushes the support arm downwards via rollers. The downward movement of the support arm drives the pressure plate downwards, which in turn drives the four insert rods downwards and simultaneously compresses the four springs, giving the pressure plate the ability to elastically return to its original position. The downward movement of the pressure plate clamps and positions the packaging bag. As the threaded sleeve continues to move downwards, it drives the folding plate downwards to fold the packaging bag. Because the front end of the pushing rack is inclined and the rear part is horizontal, the pushing rack can continue to move after pressing the pressure plate downwards and clamping the packaging bag. This ensures the stability of the pressure plate while the folding plate continues to move downwards for folding. This allows the folding device to perform folding and positioning of the packaging bag in two separate steps, enabling simultaneous control of positioning and folding, thereby reducing processing steps and improving processing efficiency. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the folding device for producing packaging bags according to this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the folding device for producing packaging bags according to this utility model. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the folding device for producing packaging bags according to this utility model. Figure 3 ;

[0016] Figure 4 This is a schematic diagram of the folding device for producing packaging bags according to this utility model. Figure 4 ;

[0017] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0018] In the diagram: 1. Workbench; 2. Support frame; 3. Pressure plate; 4. Insert rod; 5. Spring; 6. Connecting frame; 7. Servo motor; 8. Folding plate; 9. Driving bevel gear; 10. Driven bevel gear; 11. Shaft seat; 12. Threaded rod; 13. Threaded sleeve; 14. Opening; 15. Limiting groove; 16. Limiting strip; 17. Transmission rack; 18. Gear column; 19. Push rack; 20. Slider; 21. Slide groove; 22. Roller; 23. Support arm. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1 to 5The present invention includes a workbench 1, a support frame 2 fixedly mounted on the top of the workbench 1, a pressing plate 3 above the support frame 2, and four insert rods 4 movably inserted into the four corners of the support frame 2. The bottom of the four insert rods 4 is fixedly mounted on the top four corners of the pressing plate 3. The upper end of each of the four insert rods 4 is fitted with a spring 5, and the two ends of each spring 5 are fixedly connected to the insert rod 4 and the support frame 2 respectively. A connecting frame 6 is fixedly mounted on the top of the support frame 2, and a servo motor 7 is fixedly mounted on one side of the connecting frame 6. The output end of the servo motor 7 is provided with a transmission component. A folding plate 8 is provided on one side above the workbench 1. The transmission component is connected to the folding plate 8 and the pressing plate 3. When the servo motor 7 is running, it outputs power to the folding plate 8 and the pressing plate 3 through the transmission component, causing the pressing plate 3 to move down to press the packaging bag, and causing the folding plate 8 to move down synchronously to fold the packaging bag.

[0021] In use, the operator places the packaging bag on top of the workbench 1, aligning the folded edge of the bag with the folding plate 8 and extending it beyond the workbench 1. The operator then starts the servo motor 7 to drive the transmission component. As the transmission component operates, it moves the pressure plate 3 downward. When the pressure plate 3 moves downward, it moves the four insert rods 4 downward and simultaneously compresses the four springs 5, giving the pressure plate 3 the ability to elastically return to its original position. As the pressure plate 3 moves downward, it presses and positions the packaging bag. At the same time, the transmission component continues to drive the folding plate 8 downward to fold the packaging bag. This allows the folding device to perform two separate operation steps for folding and positioning the packaging bag, enabling simultaneous control of positioning and folding in one operation. This reduces processing steps and improves processing efficiency.

[0022] The transmission assembly includes a drive bevel gear 9, which is fixedly installed at the output end of the servo motor 7. A driven bevel gear 10 is meshed with the lower part of the surface of the drive bevel gear 9. The top of the driven bevel gear 10 is rotatably connected to the inner top of the connecting frame 6 through a shaft seat 11. A threaded rod 12 is fixedly installed at the bottom of the driven bevel gear 10. A threaded sleeve 13 is threadedly connected to the surface of the threaded rod 12. An opening 14 is provided on one side of the support frame 2. The threaded sleeve 13 is inserted into the inside of the limiting groove 15. Limiting grooves 15 are provided on both sides of the inner wall of the opening 14. Limiting strips 16 are fixedly installed on both the front and rear sides of the threaded sleeve 13. The two limiting strips 16 are slidably installed inside the two limiting grooves 15. The bottom of the threaded sleeve 13 is fixedly connected to the folded edge plate 8.

[0023] The operator starts the servo motor 7 to drive the active bevel gear 9 to rotate. The active bevel gear 9 drives the threaded rod 12 to rotate through the driven bevel gear 10. When the threaded rod 12 rotates, it drives the threaded sleeve 13 to move down. When the threaded sleeve 13 moves down, it drives the two limit bars 16 to slide along the inside of the two limit grooves 15, which increases the stability of the threaded sleeve 13 when it moves.

[0024] A transmission rack 17 is fixedly installed on one side of the threaded sleeve 13. A toothed column 18 is meshed with the lower part of one side of the transmission rack 17. Both ends of the toothed column 18 are rotatably connected to the inner top of the support frame 2 through rotating seats. A pushing rack 19 is meshed with the lower part of the toothed column 18. A roller 22 is tightly attached to the inclined surface of one end of the pushing rack 19. A support arm 23 is rotatably installed on the lower part of the roller 22. The bottom of the support arm 23 is fixedly connected to the middle of the top of the pressure plate 3. A slider 20 is fixedly installed on one end of the upper part of the pushing rack 19. A groove 21 is opened in the inner top plate of the support frame 2. The slider 20 is slidably installed inside the groove 21.

[0025] When the threaded sleeve 13 moves downward, it drives the gear column 18 to rotate through the transmission rack 17. When the gear column 18 rotates, it drives the pushing rack 19 to move. When the pushing rack 19 moves, it drives the slider 20 to slide inside the slide groove 21, which increases the stability of the pushing rack 19 when it moves. When the pushing rack 19 moves, it smoothly pushes the support arm 23 downward through the roller 22. When the support arm 23 moves downward, it drives the pressure plate 3 to move downward. When the pressure plate 3 moves downward, it will press and position the packaging bag. When the threaded sleeve 13 continues to move downward, it will drive the folding plate 8 to press down and fold the packaging bag. Since the front end of the pushing rack 19 is inclined and the rear part is horizontal, the pushing rack 19 can continue to move after it pushes the pressure plate 3 downward to press the packaging bag. This allows the folding plate 8 to continue to move downward to fold the packaging bag while ensuring the pressing stability of the pressure plate 3.

Claims

1. A folding device for producing packaging bags, comprising a workbench (1), characterized in that: A support frame (2) is fixedly installed on the top of the workbench (1). A pressing plate (3) is provided above the support frame (2). Insert rods (4) are movably inserted into the four corners of the support frame (2). The bottom of the four insert rods (4) is fixedly installed on the top four corners of the pressing plate (3). Springs (5) are sleeved on the upper ends of the four insert rods (4). The two ends of the four springs (5) are fixedly connected to the insert rods (4) and the support frame (2) respectively. A connecting frame (6) is fixedly installed on the top of the support frame (2). A servo motor (7) is fixedly installed on one side of the connecting frame (6). A transmission component is provided at the output end of the servo motor (7). A folding plate (8) is provided on one side above the workbench (1). The transmission component is connected to the folding plate (8) and the pressing plate (3) for transmission. When the servo motor (7) is running, it outputs power to the folding plate (8) and the pressing plate (3) through the transmission component, so that the pressing plate (3) moves down to press the packaging bag, and the folding plate (8) moves down synchronously to fold the packaging bag.

2. The folding device for packaging bag production according to claim 1, characterized in that: The transmission assembly includes an active bevel gear (9), which is fixedly installed at the output end of the servo motor (7). A driven bevel gear (10) is meshed with the lower part of the surface of the active bevel gear (9). The top of the driven bevel gear (10) is rotatably connected to the inner top of the connecting frame (6) through a shaft seat (11). A threaded rod (12) is fixedly installed at the bottom of the driven bevel gear (10). A threaded sleeve (13) is threadedly connected to the surface of the threaded rod (12). An opening (14) is provided on one side of the support frame (2). The threaded sleeve (13) is inserted into the inside of the limiting groove (15). Limiting grooves (15) are provided on both sides of the inner wall of the opening (14). Limiting strips (16) are fixedly installed on both the front and rear sides of the threaded sleeve (13). The two limiting strips (16) are slidably installed inside the two limiting grooves (15). The bottom of the threaded sleeve (13) is fixedly connected to the folded edge plate (8).

3. The folding device for packaging bag production according to claim 2, characterized in that: A transmission rack (17) is fixedly installed on one side of the threaded sleeve (13). A toothed column (18) is meshed with the lower part of one side of the transmission rack (17). Both ends of the toothed column (18) are rotatably connected to the inner top of the support frame (2) through a rotating seat. A pushing rack (19) is meshed with the lower part of the toothed column (18). A roller (22) is closely attached to the inclined surface of one end of the pushing rack (19). A support arm (23) is rotatably installed on the lower part of the roller (22). The bottom of the support arm (23) is fixedly connected to the middle part of the top of the pressure plate (3).

4. The folding device for packaging bag production according to claim 3, characterized in that: A slider (20) is fixedly installed at one end of the upper part of the push rack (19), and a groove (21) is opened on the inner top plate of the support frame (2), and the slider (20) is slidably installed inside the groove (21).

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