Bag cutting device for plastic bag production

Abstract

The utility model discloses a bag cutting device for producing plastic bags, comprising a mounting plate, both sides of the top of the mounting plate are fixedly connected with mounting columns, the top of the mounting column is fixedly connected with a mounting top, a rotating motor is fixedly installed in the middle of the top of the mounting top, the output end of the rotating motor passes through the mounting top and is fixedly connected with a rotating screw rod, the middle part of the rotating screw rod is threadedly connected with a threaded seat. The utility model discloses a bag cutting device for producing plastic bags, when in use, the user can adjust the height of the cutting knife by rotating the motor and the rotating screw rod, so as to facilitate the cutting work, when the cutting knife is pressed down, the lower pressing plate is forced to retract into the moving groove under the action of the extrusion spring, the closer the cutting knife is to the mounting plate, the greater the pressure applied by the lower pressing plate to the plastic bag, that is, the lower pressing plate fixes the plastic bag to be cut, so as to prevent the cutting knife from offsetting when cutting, and the lower pressing pad strip prevents the lower pressing plate from damaging the plastic bag, so that it is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bag production and processing, in particular to a bag cutting device for plastic bag production. Background Art

[0002] Plastic bags are bags made of plastic (commonly used plastics include polypropylene, polyester, nylon, etc.) as the main raw material. They are indispensable items in people's daily lives and are often used to hold other items. Plastic bags need to be cut during production and processing.

[0003] The existing Chinese patent with announcement number CN215471672U discloses a bag cutting device for plastic bag production and processing, including: a bag cutting device body, a mounting block fixedly mounted on the bag cutting device body, and a support rod fixedly mounted on the mounting block, an equipment box fixedly mounted on the support rod, and a drive motor fixedly mounted inside the equipment box, a first rotating rod fixedly connected to the drive motor, and a first conical tooth fixedly mounted on the first rotating rod.

[0004] With respect to the above-mentioned related technologies, the inventors found that the above-mentioned device body cannot fix the plastic bag during cutting, which affects the cutting effect of the plastic bag and is not convenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a bag cutting device for plastic bag production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a bag cutting device for plastic bag production, comprising a mounting plate, two sides of the top of the mounting plate are fixedly connected to mounting columns, the top of the mounting column is fixedly connected to the mounting top, the middle part of the top of the mounting top is fixedly installed with a rotating motor, the output end of the rotating motor passes through the mounting top and is fixedly connected with a rotating screw rod, the middle part of the rotating screw rod is threadedly connected with a threaded seat, the middle part of the front of the threaded seat is fixedly connected with a sliding seat, the two sides of the sliding seat are fixedly connected with a fixing block, the two ends of the fixing block are threadedly connected with a mounting piece, a moving groove is opened in the middle part of the mounting piece, the top of the moving groove is fixedly connected with a fixing plate, the middle part of the bottom end of the fixing plate is fixedly connected with a fixing column, the middle part of the fixing column is slidably connected with a force-bearing column, the bottom end of the force-bearing column is fixedly installed with an extrusion spring, the bottom end of the extrusion spring is fixedly installed with a lower pressure column, and the bottom end of the lower pressure column is fixedly connected with a lower pressure plate.

[0007] As a preferred technical solution of the utility model, sliding grooves are provided in the middle of both sides of the mounting member, and the bottom ends of both sides of the force-bearing column are fixedly connected with sliding rods, and the sliding rods are fixedly connected with sliding heads through the sliding grooves.

[0008] As an optimal technical solution of the utility model, a connecting groove is opened in the middle of the fixing block, a connecting square column is fixedly installed in the middle of the connecting groove, a mounting screw is threadedly connected to the connection between the mounting piece and the fixing block, and the mounting screw is threadedly connected to the connecting square column.

[0009] As a preferred technical solution of the utility model, the middle parts of both sides of the threaded seat are fixedly connected with limit rods, the top of the mounting plate near the two sides of the screw rod are fixedly connected with vertical mounting rods, the middle part of the vertical mounting rods is slidably connected with a sliding sleeve, and the limit rod is fixedly connected to the sliding sleeve.

[0010] As a preferred technical solution of the utility model, a mounting seat is fixedly connected to the middle of the bottom end of the front side of the sliding seat, and a cutting knife is fixedly installed at the bottom end of the mounting seat.

[0011] As a preferred technical solution of the utility model, a lower pressing pad is fixedly connected to the bottom end of the lower pressing plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the present scheme provides a bag cutting device for plastic bag production. When in use, the user can adjust the height of the cutting knife by rotating the motor and the rotating screw, which is convenient for cutting. When the cutting knife is pressed down, the lower pressure plate is forced to retract into the movable groove under the action of the extrusion spring. The closer the cutting knife is to the mounting plate, the greater the pressure applied by the lower pressure plate to the plastic bag. That is, the lower pressure plate fixes the plastic bag to be cut to prevent the cutting knife from offsetting during cutting. The lower pressure pad prevents the lower pressure plate from damaging the plastic bag, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the cutting knife of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the extrusion spring of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the utility model connecting square columns;

[0017] Figure 5 It is a structural schematic diagram of the lower pressing plate of the utility model.

[0018] In the figure: 1. Mounting plate; 2. Mounting column; 3. Mounting top; 4. Rotating motor; 5. Rotating screw; 6. Sliding seat; 7. Vertical mounting rod; 8. Mounting piece; 9. Sliding head; 10. Down-pressure column; 11. Sliding sleeve; 12. Threaded seat; 13. Limiting rod; 14. Down-pressure pad; 15. Down-pressure plate; 16. Fixed block; 17. Cutting knife; 18. Mounting seat; 19. Fixed plate; 20. Load-bearing column; 21. Sliding groove; 22. Extrusion spring; 23. Mounting screw; 24. Sliding rod; 25. Moving groove; 26. Connecting groove; 27. Connecting square column; 28. Fixed column. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-5 The utility model provides a bag cutting device for plastic bag production, including a mounting plate 1, both sides of the top of the mounting plate 1 are fixedly connected with mounting columns 2, the top of the mounting column 2 is fixedly connected with a mounting top 3, the mounting column 2 is convenient for the installation of the mounting top 3, the mounting top 3 is convenient for the installation of a rotating motor 4, the middle of the top of the mounting top 3 is fixedly installed with a rotating motor 4, the output end of the rotating motor 4 passes through the mounting top 3 and is fixedly connected with a rotating screw rod 5, the rotating motor 4 drives a threaded seat 12 to rotate through the rotating screw rod 5, the middle part of the rotating screw rod 5 is threadedly connected with a threaded seat 12, the middle part of the front of the threaded seat 12 is fixedly connected with a sliding seat 6, the middle parts of both sides of the threaded seat 12 are fixedly connected with a limiting rod 13, the top of the mounting plate 1 is fixedly connected with a vertical mounting rod 7 on both sides close to the screw rod, the middle part of the vertical mounting rod 7 is slidably connected with a sliding sleeve 11, the limiting rod 13 is fixedly connected to the sliding sleeve 11, the threaded seat 12 moves up and down under the action of the limiting rod 13 and the sliding sleeve 11, when the screw When the groove seat 12 moves up and down, the sliding seat 6 is also driven to move up and down, so that the cutting knife 17 can perform cutting work. The two sides of the sliding seat 6 are fixedly connected with fixed blocks 16, and the two ends of the fixed block 16 are threadedly connected with the mounting member 8. The middle of the mounting member 8 is provided with a moving groove 25, and the top of the moving groove 25 is fixedly connected with a fixed plate 19, and the middle of the bottom of the fixed plate 19 is fixedly connected with a fixed column 28, and the middle of the fixed column 28 is slidably connected with a force column 20. A squeezing spring 22 is fixedly installed at the bottom end of the force-bearing column 20, and a lower pressure column 10 is fixedly installed at the bottom end of the squeezing spring 22. The lower pressure column 10 is fixedly connected to a lower pressure plate 15 at the bottom end. The lower pressure plate 15 follows the sliding seat 6 to press down. When the lower pressure plate 15 contacts the mounting plate 1, the lower pressure plate 15 retracts into the movable groove 25 under the action of the squeezing spring 22. The force-bearing column 20 slides upward on the fixed column 28 under the force, so that the lower pressure plate 15 moves up, which is convenient for the cutting knife 17 to continue to press down.

[0021] A sliding groove 21 is provided in the middle of both sides of the mounting member 8, and a sliding rod 24 is fixedly connected to the bottom end of both sides of the force-bearing column 20. The sliding rod 24 passes through the sliding groove 21 and is fixedly connected to the sliding head 9. A connecting groove 26 is provided in the middle of the fixed block 16. When the force-bearing column 20 slides up, the sliding rod 24 and the sliding head 9 also slide up in the sliding groove 21. The sliding rod 24 and the sliding head 9 improve the stability of the force-bearing column 20 when sliding up, and it is more convenient to use. A connecting square column 27 is fixedly installed in the middle of the connecting groove 26. The mounting member 8 and the fixed block The connection of 16 is threadedly connected with a mounting screw 23, and the connecting square column 27 facilitates the installation of the mounting screw 23. The mounting screw 23 facilitates the connection between the mounting piece 8 and the fixed block 16, and the mounting screw 23 is threadedly connected to the connecting square column 27. The middle part of the bottom end of the front side of the sliding seat 6 is fixedly connected with a mounting seat 18, and a cutting knife 17 is fixedly installed at the bottom end of the mounting seat 18. The cutting knife 17 performs cutting work, and the bottom end of the lower pressure plate 15 is fixedly connected with a lower pressure pad 14. The lower pressure pad 14 prevents the lower pressure plate 15 from causing damage to the plastic bag.

[0022] Working principle: The utility model is a bag cutting device for plastic bag production. When in use, the user places the plastic bag at the bottom of the cutting knife 17, and the rotating motor 4 drives the threaded seat 12 to rotate by rotating the screw rod 5. The threaded seat 12 moves up and down under the action of the limit rod 13 and the sliding sleeve 11. When the threaded seat 12 moves up and down, the sliding seat 6 is also driven to move up and down, so that the cutting knife 17 can perform cutting work, and the lower pressing plate 15 follows the sliding seat 6 to press down. When the lower pressing plate 15 contacts the mounting plate 1, the lower pressing plate 1 Under the action of the extrusion spring 22, the force-bearing column 20 retracts into the moving groove 25, and the force-bearing column 20 slides upward on the fixed column 28, so that the lower pressing plate 15 moves upward, which is convenient for the cutting knife 17 to continue to press downward. When the force-bearing column 20 slides upward, the sliding rod 24 and the sliding head 9 also slide upward in the sliding groove 21. The sliding rod 24 and the sliding head 9 improve the stability of the force-bearing column 20 when it slides upward. Among them, the mounting screw 23 is convenient for connecting the mounting piece 8 with the fixed block 16, and the pressing pad strip 14 prevents the lower pressing plate 15 from causing damage to the plastic bag, which is more convenient to use.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bag cutting device for plastic bag production, comprising a mounting plate (1), characterized in that: Both sides of the top of the mounting plate (1) are fixedly connected to mounting columns (2), the top of the mounting column (2) is fixedly connected to a mounting top (3), a rotating motor (4) is fixedly installed in the middle of the top of the mounting top (3), the output end of the rotating motor (4) passes through the mounting top (3) and is fixedly connected to a rotating screw rod (5), the middle of the rotating screw rod (5) is threadedly connected to a threaded seat (12), the middle of the front of the threaded seat (12) is fixedly connected to a sliding seat (6), both sides of the sliding seat (6) are fixedly connected to fixed blocks (16), and the fixed blocks (16) are fixedly connected to the mounting top (3). ) are threadedly connected to mounting members (8) at both ends, a movable groove (25) is provided in the middle of the mounting member (8), a fixed plate (19) is fixedly connected to the top of the movable groove (25), a fixed column (28) is fixedly connected to the middle of the bottom end of the fixed plate (19), a force-bearing column (20) is slidably connected to the middle of the fixed column (28), a compression spring (22) is fixedly installed at the bottom end of the force-bearing column (20), a downward pressure column (10) is fixedly installed at the bottom end of the compression spring (22), and a downward pressure plate (15) is fixedly connected to the bottom end of the downward pressure column (10).

2. A plastic bag cutting device for production according to claim 1, characterized in that: A sliding groove (21) is provided in the middle of both sides of the mounting member (8), and a sliding rod (24) is fixedly connected to the bottom end of both sides of the force-bearing column (20), and the sliding rod (24) passes through the sliding groove (21) and is fixedly connected to a sliding head (9).

3. A plastic bag cutting device for producing plastic bags according to claim 1, characterized in that: A connecting groove (26) is provided in the middle of the fixing block (16), a connecting square column (27) is fixedly installed in the middle of the connecting groove (26), a mounting screw (23) is threadedly connected to the connection between the mounting member (8) and the fixing block (16), and the mounting screw (23) is threadedly connected to the connecting square column (27).

4. A plastic bag cutting device for producing plastic bags according to claim 1, characterized in that: The middle parts of both sides of the threaded seat (12) are fixedly connected to limit rods (13), the top of the mounting plate (1) is fixedly connected to both sides close to the screw rod, the middle part of the vertical mounting rod (7) is slidably connected to a sliding sleeve (11), and the limit rod (13) is fixedly connected to the sliding sleeve (11).

5. A plastic bag cutting device for producing plastic bags according to claim 1, characterized in that: A mounting seat (18) is fixedly connected to the middle of the bottom end of the front side of the sliding seat (6), and a cutting knife (17) is fixedly mounted on the bottom end of the mounting seat (18).

6. A bag cutting device for plastic bag production according to claim 1, characterized in that: A lower pressing pad strip (14) is fixedly connected to the bottom end of the lower pressing plate (15).

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