Container bag opening shearing machine
By introducing components such as a dustproof shearing box and a drive motor into the FIBC (Flexible Intermediate Bulk Container) bag mouth shearing machine, the problem of loosening of plastic FIBCs during the cutting process has been solved, and a stable cutting effect for FIBCs has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-13
AI Technical Summary
Existing container bag opening cutting machines often experience loosening of the bag opening due to the flexibility of the plastic container bag during the cutting process, which affects the cutting effect.
The dustproof shearing box employs a shearing frame structure, combined with a drive motor, threaded rod, electric cylinder, and cutting wheel. Through the cooperation of limit components and lifting plates, it achieves stable clamping and cutting of the bulk bags, preventing slippage.
This method enables smooth cutting of FIBCs (Flexible Intermediate Bulk Containers), avoiding problems such as loosening and uneven cutting, and improving cutting efficiency and quality.
Smart Images

Figure CN223989820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bag opening cutting machine for FIBCs (Flexible Intermediate Bulk Containers), belonging to the field of FIBC processing technology. Background Technology
[0002] FIBCs, also known as flexible FIBCs, ton bags, or space bags, are soft and flexible packaging containers that save material costs for storing lightweight items. They are often used in plastic FIBCs to increase profits.
[0003] For example, a container bag mouth cutting machine with patent number CN202420283048.7 includes a processing table and support legs. The support legs are bolted to the bottom of the processing table. It also includes a fixing frame bolted to the top of the processing table. Vertical grooves are opened on both sides of the surface of the fixing frame, and a first hydraulic rod is bolted to the upper part of the inner wall of the vertical groove.
[0004] Because the aforementioned shearing machine cuts the bag opening of the FIBC by pressing downwards, and the bag opening of the plastic FIBC has a certain degree of flexibility, it may loosen the bag opening during the cutting process, which has a certain adverse effect on actual use. Therefore, improvements are needed. Utility Model Content
[0005] The purpose of this invention is to provide a bag mouth cutting machine for FIBCs (Flexible Intermediate Bulk Containers). This invention uses a dustproof cutting box to clamp and constrain the plastic FIBC, and a drive-controlled cutting wheel to move and cut the bag mouth, thus ensuring the cutting of the FIBC and preventing loosening and slippage, thereby solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A bag-cutting machine for bulk bags includes a dustproof shearing box with a switchable door. A shearing frame is fixedly installed on the rear side of the inner wall of the dustproof shearing box. A drive motor is fixedly installed on the top of the shearing frame via a bracket. A threaded rod is fixedly installed on the output end of the drive motor. A threaded sleeve is threadedly connected to the surface of the threaded rod. A limit component is connected to the top of the threaded sleeve. An electric cylinder is fixedly installed on the bottom of the threaded sleeve. A lifting plate is fixedly installed on the output end of the electric cylinder. A cutting wheel with a drive end is fixedly installed on the bottom of the lifting plate. An electric cylinder is fixedly installed on the rear side of the shearing frame near its inner wall. A lifting pressure plate is fixedly installed on the output end of the electric cylinder. An impurity storage box with a switchable door is fixedly connected to the bottom of the dustproof shearing box. The impurity storage box is located directly below the shearing frame. A smooth guide plate is fixedly connected to the surface of the inner wall of the impurity storage box.
[0008] Furthermore, a lower groove is provided at the bottom of the inner wall of the dustproof shearing box, and a guide roller is rotatably connected to the inner wall of the lower groove via a bearing.
[0009] Furthermore, the limiting component includes a limiting plate and a limiting groove. The limiting plate is fixedly connected to the top of the threaded sleeve plate, and the limiting groove is formed on the top of the inner wall of the shearing frame. The inner wall of the limiting groove and the surface of the limiting plate are slidably connected.
[0010] Furthermore, a spring telescopic rod is fixedly installed on the bottom of the lifting plate near its side, and a pressure wheel is fixedly connected to the bottom end of the spring telescopic rod.
[0011] Furthermore, air blowers are fixedly installed on the bottom of the lifting plate near its front side and the bottom of its rear side, and there are at least two air blowers, which are connected to the lifting plate in a left-right direction.
[0012] Furthermore, the lifting pressure plate consists of two stabilizing pressure plates, and the surfaces of the two stabilizing pressure plates are fixedly connected by a connecting rod.
[0013] Furthermore, a balance slide plate is fixedly connected to the side of the lifting and pressing plate, and a balance groove is provided on the side of the inner wall of the shearing frame. The inner wall of the balance groove and the surface of the balance slide plate are slidably connected.
[0014] The beneficial effects of this utility model are:
[0015] In this invention, the shearing frame inside the dustproof shearing box can perform the pressing and shearing operation of the bulk bag, so that the plastic bulk bag is moved to the position directly below the lifting pressure plate. The part to be cut is moved to the space between the two stable pressure plates of the lifting pressure plate. The operation of the second electric cylinder can drive the lifting pressure plate to adjust its height. After the plastic bulk bag is pressed and prevented from slipping, the first electric cylinder can be operated to drive the lifting plate to move downward, so that the cutting blade can abut against the edge of the plastic bulk bag for cutting, which can realize the smooth pushing and moving of the plastic bulk bag.
[0016] In this invention, the drive motor can rotate the threaded rod. With the setting of the limiting component, the rotation of the threaded rod can drive the threaded sleeve plate to move. The movement of the threaded sleeve plate can drive the electric cylinder and the cutting wheel to move. The operation of the electric cylinder can drive the cutting wheel to adjust its height, which can complete the smooth left and right linear movement of the cutting wheel. The cutting wheel is guided by the smooth guide plate and discharged. Because the pressure wheel on the spring telescopic rod can follow the movement of the cutting wheel, it can prevent slippage during the cutting of the bulk bag, and can perform a smooth horizontal cutting operation of the plastic bulk bag. Attached Figure Description
[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.
[0018] Figure 1 This is a schematic diagram of the overall structure of a container bag mouth cutting machine according to the present invention;
[0019] Figure 2 This is a top view of a container bag mouth cutting machine according to the present invention;
[0020] Figure 3 This is a front sectional view of the shearing frame in a container bag mouth shearing machine according to this utility model;
[0021] Figure 4 This is a side cross-sectional view of an impurity storage box in a container bag mouth shearing machine according to the present invention;
[0022] Figure 5 This is a top view of the lifting and pressing plate in a container bag mouth cutting machine according to this utility model;
[0023] Figure 6 This is an enlarged view of point A of a container bag mouth cutting machine according to this utility model;
[0024] The following are the labels in the diagram: 1. Dustproof shearing box; 2. Shearing frame; 3. Drive motor; 4. Threaded rod; 5. Threaded sleeve plate; 6. Electric cylinder one; 7. Lifting plate; 8. Cutting wheel; 9. Electric cylinder two; 10. Lifting and pressing plate; 11. Impurity storage box; 12. Smooth guide plate; 13. Guide roller; 14. Limiting plate; 15. Limiting groove; 16. Spring telescopic rod; 17. Pressing wheel; 18. Air blower; 19. Balance slide plate; 20. Balance slide groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please refer to Example 1 Figures 1-6 This utility model provides a technical solution:
[0027] A bag-cutting machine for container bags includes a dustproof shearing box 1 with a switchable door. A shearing frame 2 is fixedly installed on the rear side of the inner wall of the dustproof shearing box 1. A drive motor 3 is fixedly installed on the top of the shearing frame 2 via a bracket. A threaded rod 4 is fixedly installed on the output end of the drive motor 3. A threaded sleeve plate 5 is threadedly connected to the surface of the threaded rod 4. A limit component is connected to the top of the threaded sleeve plate 5. An electric cylinder 6 is fixedly installed on the bottom of the threaded sleeve plate 5. A lifting plate 7 is fixedly installed on the output end of the electric cylinder 6. A cutting wheel 8 with a drive end is fixedly installed on the bottom of the lifting plate 7. An electric cylinder 9 is fixedly installed on the rear side of the shearing frame 2 near its inner wall. A lifting pressure plate 10 is fixedly installed on the output end of the electric cylinder 9. An impurity storage box 11 with a switchable door is fixedly connected to the bottom of the dustproof shearing box 1. The impurity storage box 11 is located directly below the shearing frame 2. A smooth guide plate 12 is fixedly connected to the surface of the inner wall of the impurity storage box 11.
[0028] Specifically, such as Figures 1-6 As shown, a lower groove is provided at the bottom of the inner wall of the dustproof shearing box 1. The inner wall of the lower groove is rotatably connected to a guide roller 13 through a bearing. Under the action of the guide roller 13, the plastic container bag can be guided to move.
[0029] Furthermore, the lifting and lowering pressure plate 10 consists of two stabilizing pressure plates, and the surfaces of the two stabilizing pressure plates are fixedly connected by a connecting rod. The lifting and lowering pressure plate 10 can constrain and clamp the plastic container bag at the front and rear to achieve a positioning and anti-slip effect.
[0030] Specifically, such as Figures 1-6 As shown, the limiting assembly includes a limiting plate 14 and a limiting groove 15. The limiting plate 14 is fixedly connected to the top of the threaded sleeve 5, and the limiting groove 15 is opened on the top of the inner wall of the shearing frame 2. The inner wall of the limiting groove 15 and the surface of the limiting plate 14 are slidably connected. Under the action of the limiting plate 14 and the limiting groove 15, the rotation of the threaded rod 4 can drive the threaded sleeve 5 to move.
[0031] Furthermore, a balance slide plate 19 is fixedly connected to the side of the lifting and pressing plate 10, and a balance groove 20 is provided on the side of the inner wall of the shearing frame 2. The inner wall of the balance groove 20 is slidably connected to the surface of the balance slide plate 19. Under the action of the balance slide plate 19 and the balance groove 20, the height of the lifting and pressing plate 10 is guaranteed to be raised and lowered smoothly.
[0032] Please refer to Example 2 Figures 1-6The difference between this embodiment and Embodiment 1 is that a spring telescopic rod 16 is fixedly installed on the bottom of the lifting plate 7 near its side. A pressure wheel 17 is fixedly connected to the bottom end of the spring telescopic rod 16, and the pressure wheel 17 on the spring telescopic rod 16 can move with the cutting blade wheel 8. Air fans 18 are fixedly installed on the bottom of the lifting plate 7 near its front and rear sides, and there are at least two air fans 18. The at least two air fans 18 are connected to the lifting plate 7 in a left-right direction. The debris generated by cutting will move downward under the air fans 18 and enter the impurity storage box 11 for impurity storage and cut-off bag opening.
[0033] The working principle of this utility model is as follows: During use, the dustproof shearing box 1 is used for cutting the opening of plastic bulk bags. Opening the switch door of the dustproof shearing box 1 exposes its interior. Guide rollers 13 guide and push the plastic bulk bag until it moves into the appropriate shearing frame 2, at which point it is positioned directly below the lifting and pressing plate 10. The cutting point is located between the two stable pressure plates of the lifting and pressing plate 10. Electric cylinder 2 9 operates to adjust the height of the lifting and pressing plate 10. The balance slide 19 and balance groove 20 ensure stable height adjustment of the lifting and pressing plate 10. After the plastic bulk bag is stably pressed and prevented from slipping, electric cylinder 1 6 moves the lifting plate 7 downwards, allowing the cutting wheel 8 to contact the edge of the plastic bulk bag for cutting. The driving motor 3 rotates the threaded rod 4, which is positioned at the limit plate 14. Under the action of the limiting groove 15, the threaded rod 4 can rotate to drive the threaded sleeve 5 to move. The movement of the threaded sleeve 5 can drive the electric cylinder 6 and the cutting wheel 8 to move. The operation of the electric cylinder 6 can drive the cutting wheel 8 to adjust its height, which can complete the smooth left and right linear movement of the cutting wheel 8. It can perform horizontal and smooth cutting of plastic bulk bags. The debris produced by cutting will move downward under the blowing fan 18 and enter the impurity storage box 11 to store impurities and the bag openings that have fallen out. The impurities are temporarily stored inside the impurity storage box 11. After opening the switch door on the impurity storage box 11, its internal space will be exposed and guided to move out by the smooth guide plate 12. Because the spring telescopic rod 16 is equipped with a pressure wheel 17 that can move with the cutting wheel 8, it can prevent slippage during the cutting of bulk bags, ensuring the cutting of bulk bags and the anti-slip restraint effect.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bag opening cutting machine for FIBCs, comprising a dustproof cutting box (1) with a switch door, characterized in that: The rear side of the inner wall of the dustproof shearing box (1) is fixedly installed with a shearing frame (2), the top of the shearing frame (2) is fixedly installed with a driving motor (3) through a support, the output end of the driving motor (3) is fixedly installed with a threaded rod (4), the surface of the threaded rod (4) is threadedly connected with a threaded sleeve plate (5), the top of the threaded sleeve plate (5) is connected with a limiting assembly, the bottom of the threaded sleeve plate (5) is fixedly installed with an electric cylinder I (6), the output end of the electric cylinder I (6) is fixedly installed with a lifting plate (7), the bottom of the lifting plate (7) is fixedly installed with a cutting knife wheel (8) with a driving end, the rear side of the inner wall of the shearing frame (2) is fixedly installed with an electric cylinder II (9), the output end of the electric cylinder II (9) is fixedly installed with a lifting pressure plate (10), the bottom of the dustproof shearing box (1) is fixedly connected with a impurity storage box (11) with a switch door, the impurity storage box (11) is located directly below the shearing frame (2), the surface of the inner wall of the impurity storage box (11) is fixedly connected with a smooth guide plate (12).
2. A flexible intermediate bulk container spout cutting machine as defined in claim 1, wherein: The bottom of the inner wall of the dustproof shearing box (1) is provided with a lower groove, and the inner wall of the lower groove is rotatably connected with a guide roller (13) through a bearing.
3. A flexible intermediate bulk container spout cutting machine as defined in claim 1, wherein: The limiting assembly comprises a limiting plate (14) and a limiting groove (15), the limiting plate (14) is fixedly connected to the top of the threaded sleeve plate (5), and the limiting groove (15) is formed in the top of the inner wall of the shearing frame (2), and the inner wall of the limiting groove (15) and the surface of the limiting plate (14) are slidably connected.
4. A flexible intermediate bulk container spout cutting machine as defined in claim 1, wherein: The bottom of the lifting plate (7) is fixedly installed with a spring telescopic rod (16) near the side face thereof, and the bottom end of the spring telescopic rod (16) is fixedly connected with a pressing wheel (17).
5. A flexible intermediate bulk bag spout cutting machine as defined in claim 1, wherein: The bottom of the lifting plate (7) is fixedly installed with a blowing fan (18) near the front side thereof and the rear side thereof, and the number of blowing fans (18) is at least two, and the at least two blowing fans (18) are connected to the lifting plate (7) in the left-right direction.
6. A flexible intermediate bulk bag spout cutting machine as defined in claim 1, wherein: The lifting pressure plate (10) comprises two stable pressure plates, and the surfaces of the two stable pressure plates are fixedly connected through a connecting rod.
7. A flexible intermediate bulk container spout cutting machine as defined in claim 1, wherein: The side of the lifting pressure plate (10) is fixedly connected with a balance sliding plate (19), the side of the inner wall of the shearing frame (2) is provided with a balance sliding groove (20), and the inner wall of the balance sliding groove (20) and the surface of the balance sliding plate (19) are slidably connected.
Citation Information
Patent Citations
Container bag opening shearing machine
CN221873388U