Rapid punching device for food packaging bag production

Abstract

The utility model discloses a food packaging bag production rapid punching device which comprises a base, a supporting frame is arranged above the base, a hydraulic cylinder is arranged in the middle of the upper portion of the supporting frame, the stroke end of the hydraulic cylinder is fixedly connected with a fixing plate, and a connecting plate is arranged below the fixing plate. The sides, away from the connecting plates, of the movable blocks are movably connected with the mounting plate, four connecting blocks arranged in a matrix mode are arranged on the outer side of the mounting plate, the sides, away from the mounting plate, of the connecting blocks are fixedly connected with the cutter, threaded rods are inserted in the positions, located above the movable blocks, of the connecting plates, and the sides, away from the mounting plate, of the threaded rods are fixedly connected with rotating blocks. And four threaded holes matched with the connecting blocks are formed in the mounting plate. The punching device is simple in structure, convenient to operate and good in plastic bag positioning effect, the punching device is provided with cutters of different sizes, punching of different sizes can be conducted, and the working efficiency of the punching device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag production, in particular to a rapid punching device for food packaging bag production. Background Art

[0002] Food packaging bags need to be punched before use. Punching is generally used for threading a lifting rope or inserting connecting ears of food packaging bags for sealing and fixing. According to the patent application number: CN202020093623.9, a rapid punching device for food packaging bag production is disclosed. It uses fixed-point punching. The food bags to be punched are placed on the working platform, and the left and right displacements of the food bags are restricted by two overlapping rails to prevent the food bags from shifting. At the same time, the food bags are pressed by the abutting blocks at the front end of the cantilever. Since both the punching mechanism and the pressing mechanism are driven by cylinders, the force is large, so multiple food bags can be punched simultaneously, improving the work efficiency and shortening the punching time. However, this utility model cannot quickly replace punching heads of different sizes, which is inconvenient when different-sized holes need to be punched, reducing the convenience of use. For this reason, we propose a rapid punching device for food packaging bag production. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides a rapid punching device for food packaging bag production. The utility model solves the problem that this utility model cannot quickly replace punching heads of different sizes, which is inconvenient when different-sized holes need to be punched, reducing the convenience of use.

[0004] A rapid punching device for food packaging bag production in the utility model includes a base. Above the base, there is a support frame. In the middle above the support frame, there is a hydraulic cylinder. The stroke end of the hydraulic cylinder penetrates through the support frame and is fixedly connected to a fixed plate. Below the fixed plate, there is a connecting plate. On one side of the lower end of the connecting plate, there is a movable block. The side of the movable block away from the connecting plate is movably connected to a mounting plate. On the outside of the mounting plate, there are four connecting blocks arranged in a matrix. The side of the connecting block away from the mounting plate is fixedly connected to a cutter. The connecting plate is inserted with a threaded rod above the movable block. The side of the threaded rod away from the mounting plate is fixedly connected to a rotating block. There are four threaded holes on the mounting plate that match the connecting blocks.

[0005] In the above scheme, there are four outer tubes arranged in a matrix below the fixed plate. The lower end of the outer tube is inserted with an inner rod. The upper part of the inner rod is fixedly connected to the inner top of the outer tube through a spring. Below the two inner rods on the same side of the fixed plate, there is a pressing plate.

[0006] In the above scheme, a first rubber pad is provided below the pressing plate.

[0007] In the above solution, guide rods are provided on both sides of the hydraulic cylinder of the support frame, and the lower part of the guide rods is fixedly connected to the fixed plate.

[0008] In the above solution, anti-slip lines are provided on the outer side of the rotating block.

[0009] In the above solution, a second rubber pad is provided on the base in front of the support frame.

[0010] The advantages and beneficial effects of the present utility model are as follows: The present utility model provides a rapid punching device for food packaging bags. When the hydraulic cylinder expands and contracts, it can push the fixed plate to move reciprocally in the vertical direction. Through the transmission of the connecting plate and the mounting plate, the cutter also moves accordingly, so that the punching device can punch the plastic bag. Through the mutual cooperation between the threaded rod and the threaded hole, the threaded rod can position the mounting plate, so as to achieve the purpose of positioning the cutter. There are four cutters, and the sizes of the four cutters are different from each other, so that the punching device can punch holes of different sizes. This kind of punching device has a simple structure, is easy to operate, has a good positioning effect on the plastic bag, is provided with cutters of multiple sizes, can punch holes of different sizes, and effectively improves the working efficiency of the punching device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 is a structural schematic diagram of the present utility model;

[0013] Figure 2 is a cross-sectional view of the present utility model;

[0014] Figure 3 is a partial structural schematic diagram of part A of the present utility model.

[0015] In the figure: 1. Base; 2. Support frame; 3. Hydraulic cylinder; 4. Fixed plate

[0016] 5. Outer tube; 6. Inner rod; 7. Spring; 8. Pressing plate

[0017] 9. Connecting plate; 10. Movable block; 11. Mounting plate; 12. Connecting block

[0018] 13. Cutter; 14. Rotating block; 15. Threaded rod; 16. Threaded hole

[0019] 17. Guide rod 18. Anti-slip pattern 19. First rubber pad 20. Second rubber pad. Detailed implementation manner

[0020] The following combines the accompanying drawings and embodiments to further describe the detailed implementation manner of the present utility model. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0021] As Figures 1-3 shown, the present utility model is a rapid punching device for food packaging bag production, including a base 1. Above the base 1, there is a support frame 2. In the middle above the support frame 2, there is a hydraulic cylinder 3. The stroke end of the hydraulic cylinder 3 penetrates through the support frame 2 and is fixedly connected to a fixing plate 4. When the hydraulic cylinder 3 expands and contracts, it can push the fixing plate 4 to move reciprocally in the vertical direction. Below the fixing plate 4, there is a connecting plate 9. On one side of the lower end of the connecting plate 9, there is a movable block 10. The side of the movable block 10 away from the connecting plate 9 is movably connected to a mounting plate 11. The movable block 10 and the mounting plate 11 are movably connected through a bearing, so that the mounting plate 11 can rotate around the movable block 10. On the outside of the mounting plate 11, there are four connecting blocks 12 arranged in a matrix. The side of the connecting block 12 away from the mounting plate 11 is fixedly connected to a cutter 13. There are four cutters 13, and the sizes of the four cutters 13 are different from each other, so that the punching device can punch holes of different sizes. The connecting plate 9 is inserted with a threaded rod 15 above the movable block 10. The side of the threaded rod 15 away from the mounting plate 11 is fixedly connected to a rotating block 14. There are four threaded holes 16 on the mounting plate 11 that match the connecting blocks 12. The threaded rod 15 is threadedly connected to the connecting plate 9. When the rotating block 14 is rotated, the rotating block 14 drives the threaded rod 15 to rotate, so that the threaded rod 15 can move horizontally. At the same time, the threaded rod 15 can be inserted into the threaded hole 16. Through the mutual cooperation between the threaded rod 15 and the threaded hole 16, the threaded rod 15 can position the mounting plate 11, so as to achieve the purpose of positioning the cutter 13.

[0022] Below the fixing plate 4, there are four outer tubes 5 arranged in a matrix. The lower end of the outer tube 5 is inserted with an inner rod 6. The upper part of the inner rod 6 is fixedly connected to the inner top of the outer tube 5 through a spring 7. The lower parts of the two inner rods 6 on the same side of the fixing plate 4 are fixedly connected to a pressing plate 8. The inner rod 6 can expand and contract inside the outer tube 5. When the fixing plate 4 moves in the vertical direction, the pressing plate 8 can position the two ends of the plastic bag to be punched, avoiding the phenomenon of plastic bag displacement during the punching process. At the same time, the elastic force of the spring 7 can buffer the pressure on the plastic bag.

[0023] Below the pressing plate 8, there is a first rubber pad 19, and the first rubber pad 19 can effectively increase the friction between the pressing plate 8 and the plastic bag.

[0024] The support frame 2 is provided with guide rods 17 on both sides of the hydraulic cylinder 3. The lower part of the guide rods 17 is fixedly connected to the fixed plate 4, and the guide rods 17 are movably connected to the support frame 2. Through the mutual cooperation between the guide rods 17 and the support frame 2, the moving stability of the fixed plate 4 is effectively improved.

[0025] The outer side of the rotating block 14 is provided with anti-slip lines 18, and the anti-slip lines 18 effectively increase the friction between the fingers and the rotating block 14, thus making it more convenient to rotate the rotating block 14.

[0026] The base 1 is provided with a second rubber pad 20 in front of the support frame 2.

[0027] Specifically, in the present utility model, when the hydraulic cylinder 3 expands and contracts, it can push the fixed plate 4 to perform reciprocating movement in the vertical direction. Through the transmission of the connecting plate 9 and the mounting plate 11, the cutter 13 also moves accordingly, so that the punching device can punch the plastic bag. When rotating the rotating block 14, the rotating block 14 drives the threaded rod 15 to rotate, so that the threaded rod 15 can move in the horizontal direction. At the same time, the threaded rod 15 can be inserted into the threaded hole 16. Through the mutual cooperation between the threaded rod 15 and the threaded hole 16, the threaded rod 15 can position the mounting plate 11, so as to achieve the purpose of positioning the cutter 13. There are four cutters 13, and the sizes of the four cutters 13 are different from each other, so that the punching device can punch holes of different sizes. The inner rod 6 can expand and contract inside the outer tube 5. When the fixed plate 4 moves in the vertical direction, the pressing plate 8 can position both ends of the plastic bag to be punched, avoiding the phenomenon of plastic bag displacement during the punching process. At the same time, the elastic force of the spring 7 can buffer the pressure on the plastic bag.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A fast punching device for producing food packaging bags, comprising a base (1), characterized in that: A support frame (2) is provided above the base (1), a hydraulic cylinder (3) is provided in the middle of the upper part of the support frame (2), a stroke end of the hydraulic cylinder (3) passes through the support frame (2) and is fixedly connected to the fixed plate (4), a connecting plate (9) is provided below the fixed plate (4), a movable block (10) is provided on one side of the lower end of the connecting plate (9), the movable block (10) is movably connected to the mounting plate (11) at a side away from the connecting plate (9), four connecting blocks (12) arranged in a matrix are provided on the outer side of the mounting plate (11), the connecting block (12) is fixedly connected to the tool (13) at a side away from the mounting plate (11), a threaded rod (15) is inserted on the connecting plate (9) above the movable block (10), the threaded rod (15) is fixedly connected to the rotating block (14) at a side away from the mounting plate (11), and four threaded holes (16) matching the connecting block (12) are provided on the mounting plate (11).

2. A fast punching device for producing food packaging bags according to claim 1, characterized in that: Four outer tubes (5) arranged in a matrix are provided below the fixed plate (4), an inner rod (6) is inserted at the lower end of the outer tube (5), the upper part of the inner rod (6) is fixedly connected to the inner top of the outer tube (5) via a spring (7), and the lower parts of the two inner rods (6) located on the same side of the fixed plate (4) are fixedly connected to a pressure plate (8).

3. A fast punching device for producing food packaging bags according to claim 2, characterized in that: A first rubber pad (19) is provided below the pressing plate (8).

4. A fast punching device for producing food packaging bags according to claim 1, characterized in that: The support frame (2) is provided with guide rods (17) on both sides of the hydraulic cylinder (3), and the guide rods (17) are fixedly connected to the fixing plate (4) at the bottom.

5. A fast punching device for producing food packaging bags according to claim 1, characterized in that: The outer side of the rotating block (14) is provided with anti-slip grooves (18).

6. A fast punching device for producing food packaging bags according to claim 1, characterized in that: The base (1) is provided with a second rubber pad (20) in front of the support frame (2).

Images