A device for dividing plastic bags

Abstract

The utility model discloses a plastic bag production technical field's device that a kind of plastic bag is divided, including cutting table, cutting table upper side movably provided with mounting plate, mounting plate downside is provided with blade, cutting table upper side is penetrated and is provided with the slot of butt joint blade, two groups of mounting blocks are movably provided in fixed frame inner side, two groups of mounting blocks outside are fixedly provided with whetstone, and multiple groups of fixed cylinders are fixedly provided in fixed frame inner side, and multiple groups of fixed cylinders inside are movably inserted with movable rod, and movable rod outside end is fixedly connected in fixed cylinder outside portion in mounting block, and first spring is provided in fixed cylinder inside. The utility model is through simple mounting structure, so that cutting blade can automatically polish while being divided to plastic bag, so as to keep the sharp degree of cutting blade, avoid dull condition, so that it is more conducive to cutting plastic bag, and the practical effect is good, and it is worth existing market promotion and use.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag production technology, and more specifically, to a device for cutting plastic bags. Background Technology

[0002] Plastic bags are bags made primarily of plastic and are essential items in people's daily lives. As the demand for plastic bags increases, their production also increases. The production process of plastic bags usually requires the use of cutting equipment to cut the plastic bags.

[0003] Existing plastic bag cutting devices typically use a top-down cutting blade. Frequent low-pressure cutting can dull the blade, reducing its sharpness and making it difficult to cut plastic bags quickly. Furthermore, the blades inevitably wear down over time, making it difficult to replace them quickly and reducing the ease of use of the cutting device.

[0004] In view of this, we propose a device for cutting plastic bags. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to provide a device for cutting plastic bags, in order to solve the problem mentioned in the background art that the cutting blade of the existing plastic bag cutting device easily becomes dull during use, making it difficult to cut plastic bags quickly.

[0007] 2. Technical Solution

[0008] A device for cutting plastic bags includes a cutting table, an mounting plate movably disposed on the upper side of the cutting table, a blade disposed on the lower side of the mounting plate, a through groove for connecting the blade being formed on the upper side of the cutting table, and a fixing frame fixedly disposed on the lower side of the cutting table at the portion below the through groove. Two sets of mounting blocks are movably disposed inside the fixing frame, and a whetstone is fixedly disposed on the outer side of each of the two sets of mounting blocks. Multiple sets of fixing cylinders are fixedly disposed inside the fixing frame, and a movable rod is movably inserted into the inner side of each of the multiple sets of fixing cylinders. The movable rod movably passes through the fixing cylinder and extends to the outer side, and the outer end of the movable rod is fixedly connected to the mounting block at the outer portion of the fixing cylinder. A first spring is disposed inside the fixing cylinder, one end of the first spring is connected to the fixing cylinder, and the other end of the first spring is connected to the movable rod.

[0009] Preferably, the mounting plate is provided with electric push rods on both sides of the blade on its lower side, with one end of each set of electric push rods connected to the mounting plate and the other end of the electric push rods connected to the cutting table.

[0010] Preferably, an insert block is fixedly provided on the upper side of the blade, and a mounting frame for docking the insert block is fixedly provided on the lower side of the mounting plate.

[0011] Preferably, an installation box is fixedly provided on the upper side of the installation plate, and two sets of sliders are movably provided on the inner side of the installation box. A connecting block is fixedly provided on the lower side of each set of sliders, and a movable block is fixedly provided on the lower side of the connecting block. The movable block movably passes through the installation frame and extends to the inner side, and a locking block is fixedly provided on the outer side of the movable block located on the inner side of the installation frame. A slot for engaging the locking block is opened on the inner side of the insertion block.

[0012] Preferably, a slide bar is fixedly provided inside the mounting box, and the slide bar moves through the slider.

[0013] Preferably, a movable block is movably arranged inside the mounting box, and an adjusting block is rotatably arranged on both sides of the movable block. The two sets of adjusting blocks are rotatably connected to two sets of sliders, and a connecting rod is fixedly arranged on the outside of the movable block. The connecting rod movably passes through the mounting box and extends to the outside. An adjusting plate is fixedly arranged on the outer end of the connecting rod located on the outer side of the mounting box. A second spring is sleeved on the outside of the connecting rod. One end of the second spring is connected to the mounting box, and the other end of the second spring is connected to the movable block.

[0014] 3. Beneficial effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] 1. This utility model, by setting up a cutting groove, a fixing frame, a mounting block, a whetstone and other mechanisms, and through the cooperation of each mechanism, enables the cutting blade to be automatically sharpened while cutting the plastic bag, thereby maintaining the sharpness of the cutting blade and avoiding dulling, thus making it more convenient to cut the plastic bag.

[0017] 2. This utility model, by setting up a mounting box, slider, connecting block, movable block, card block, card slot and other mechanisms, and through the cooperation of each mechanism, makes it easy to install and fix the blade, thereby facilitating the replacement of the blade, improving the convenience of blade replacement and making it easier for operators to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side sectional view of the present invention.

[0020] Figure 3 This is a cross-sectional schematic diagram showing the installation effect of the blade of this utility model;

[0021] Figure 4This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the sharpening mechanism of this utility model;

[0023] Figure 6 This is a side sectional view of the grinding mechanism of this utility model;

[0024] The following are the labels in the diagram: 1. Cutting table; 2. Mounting plate; 3. Electric push rod; 4. Blade; 5. Cutting groove; 6. Fixing frame; 7. Mounting block; 8. Sharpening stone; 9. Fixing cylinder; 10. Movable rod; 11. First spring; 12. Insert block; 13. Mounting frame; 14. Mounting box; 15. Slide rod; 16. Slider; 17. Connecting block; 18. Movable block; 19. Locking block; 20. Locking slot; 21. Moving block; 22. Adjusting block; 23. Connecting rod; 24. Adjusting plate; 25. Second spring. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-6 This utility model provides a technical solution:

[0029] A device for cutting plastic bags includes a cutting table 1, a mounting plate 2 movably mounted on the upper side of the cutting table 1, a blade 4 mounted on the lower side of the mounting plate 2, a through groove 5 for connecting the blade 4 through the upper side of the cutting table 1, and a fixing frame 6 fixedly mounted on the lower side of the cutting table 1 below the through groove 5. Two sets of mounting blocks 7 are movably mounted inside the fixing frame 6, and a whetstone 8 is fixedly mounted on the outer side of each of the two sets of mounting blocks 7. Multiple sets of fixing cylinders 9 are fixedly mounted inside the fixing frame 6, and a movable rod 10 is movably inserted into the inner side of each of the multiple sets of fixing cylinders 9. The movable rod 10 movably passes through the fixing cylinder 9 and extends to the outer side, with the outer end of the movable rod 10 fixed at the outer side of the fixing cylinder 9. A first spring 11 is fixedly connected to the mounting block 7 and is provided inside the fixed cylinder 9. One end of the first spring 11 is connected to the fixed cylinder 9 and the other end of the first spring 11 is connected to the movable rod 10. The first spring 11 does not deform in its initial state. When the blade 4 presses against the two sets of grinding blocks 8, it can drive the two sets of grinding blocks 8 to move to both sides. The elastic force of the first spring 11 drives the grinding blocks 8 to fit against the blade 4, thereby grinding the blade 4. At the same time, after the blade 4 is removed from the fixed frame 6, the elastic potential energy of the first spring 11 is released, which can drive the whetstone 8 to move and reset, thereby facilitating the reciprocating grinding of the blade 4 and ensuring the sharpness of the blade 4.

[0030] Specifically, electric push rods 3 are provided on both sides of the blade 4 on the lower side of the mounting plate 2. One end of each set of electric push rods 3 is connected to the mounting plate 2, and the other end of the electric push rods 3 is connected to the cutting table 1. By turning on the electric push rods 3, the blade 4 can be easily moved up and down to cut the plastic bag, thus improving the convenience of cutting the plastic bag.

[0031] Furthermore, a plug 12 is fixedly provided on the upper side of the blade 4, and a mounting frame 13 for docking with the plug 12 is fixedly provided on the lower side of the mounting plate 2. The plug 12 can be movably inserted into the mounting frame 13, which can facilitate the installation of the blade 4 and improve the ease of installation of the blade 4.

[0032] It is worth noting that a mounting box 14 is fixedly installed on the upper side of the mounting plate 2. Two sets of sliders 16 are movably installed inside the mounting box 14. A connecting block 17 is fixedly installed on the lower side of each set of sliders 16. A movable block 18 is fixedly installed on the lower side of the connecting block 17. The movable block 18 moves through the mounting frame 13 and extends to the inside. A locking block 19 is fixedly installed on the outer side of the movable block 18 located inside the mounting frame 13. A slot 20 for engaging the locking block 19 is opened on the inner side of the insert block 12. The locking block 19 can be moved to engage the slot 20, which can fix the insert block 12 inside the mounting frame 13 and ensure the installation stability of the blade 4.

[0033] It is worth noting that a slide bar 15 is fixedly installed inside the mounting box 14. The slide bar 15 moves through the slider 16 and can limit the slider 16, so that the slider 16 slides along the slide bar 15, thereby improving the installation stability of the slider 16.

[0034] In addition, a movable block 21 is movably arranged inside the mounting box 14. Adjusting blocks 22 are rotatably arranged on both sides of the movable block 21. The two sets of adjusting blocks 22 are rotatably connected to two sets of sliders 16, respectively. A connecting rod 23 is fixedly arranged on the outside of the movable block 21. The connecting rod 23 movably passes through the mounting box 14 and extends to the outside. An adjusting plate 24 is fixedly arranged on the outer end of the connecting rod 23 located on the outer side of the mounting box 14. A second spring 25 is sleeved on the outside of the connecting rod 23. One end of the second spring 25 is connected to the mounting box 14, and the second spring 25... 5. The other end is connected to the moving block 21. The second spring 25 does not deform in the initial state. When the blade 4 needs to be replaced, the connecting rod 23 and the moving block 21 are moved by pulling the adjusting plate 24 outward. When the moving block 21 moves, it squeezes the second spring 25, causing the second spring 25 to deform. Subsequently, the elastic potential energy of the second spring 25 is released, which can drive the locking block 19 to be quickly inserted into the locking slot 20, improving the installation convenience and stability of the insertion block 12, thereby further ensuring the stability of the blade 4.

[0035] Working principle: First, the plastic bag is conveyed to the upper side of the cutting table 1 via a conveyor belt. Activating the electric push rod 3 moves the mounting plate 2 and blade 4 downwards to cut the plastic bag. Simultaneously, the blade 4 moves downwards and inserts into the fixed frame 6. Within the fixed frame 6, the blade 4 presses against two sets of sharpening stones 8 for grinding. The pressure on the sharpening stones 8 causes the mounting block 7 and movable rod 10 to move. As the movable rod 10 moves, it presses against the first spring 11. After cutting, the electric push rod 3 moves the blade 4 upwards to reset, at which point the sharpening stones 8... The blade 4 is sharpened, and the return force of the first spring 11 can drive the sharpening stone 8 to move and reset. When the blade 4 is severely worn and needs to be replaced, the connecting rod 23 and the moving block 21 are moved by pulling the adjusting plate 24 outward. When the moving block 21 moves, it drives the adjusting block 22 and the connecting block 17 to move. When the connecting block 17 moves, it drives the movable block 18 and the locking block 19 to move. The locking block 19 moves out of the locking slot 20. Then the insert block 12 is taken out of the mounting frame 13, and the blade 4 can be quickly replaced.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for cutting plastic bags, comprising a cutting table (1), characterized in that: The cutting table (1) is movably provided with an mounting plate (2) on its upper side. The mounting plate (2) is provided with a blade (4) on its lower side. The cutting table (1) is provided with a through groove (5) for connecting the blade (4) through its upper side. The cutting table (1) is provided with a fixed frame (6) on its lower side, located below the through groove (5). The fixed frame (6) is provided with two sets of mounting blocks (7) movably provided inside its inner side. The two sets of mounting blocks (7) are provided with a whetstone (8) fixed outside their outer sides. The fixed frame (6) is provided with multiple sets of fixed cylinders (9) fixed inside its inner side. The multiple sets of fixed cylinders (9) are provided with movable rods (10) movably inserted inside their inner sides. The movable rods (10) movably pass through the fixed cylinders (9) and extend to the outer side. The outer end of the movable rods (10) is fixedly connected to the mounting block (7) on the outer side of the fixed cylinders (9). The fixed cylinders (9) are provided with a first spring (11) inside their inner side. One end of the first spring (11) is connected to the fixed cylinder (9), and the other end of the first spring (11) is connected to the movable rod (10).

2. The device for cutting plastic bags according to claim 1, characterized in that: The mounting plate (2) is provided with electric push rods (3) on both sides of the blade (4) on the lower side. One end of the two sets of electric push rods (3) is connected to the mounting plate (2), and the other end of the electric push rods (3) is connected to the cutting table (1).

3. The device for cutting plastic bags according to claim 1, characterized in that: The blade (4) is fixedly provided with a plug (12) on the upper side, and the mounting plate (2) is fixedly provided with a mounting frame (13) for docking the plug (12) on the lower side.

4. The device for cutting plastic bags according to claim 3, characterized in that: The mounting plate (2) is fixedly provided with a mounting box (14) on the upper side. Two sets of sliders (16) are movably provided inside the mounting box (14). A connecting block (17) is fixedly provided on the lower side of each set of sliders (16). A movable block (18) is fixedly provided on the lower side of the connecting block (17). The movable block (18) movably passes through the mounting frame (13) and extends to the inner side. A locking block (19) is fixedly provided on the outer side of the movable block (18) located inside the mounting frame (13). A slot (20) for docking the locking block (19) is opened on the inner side of the insert block (12).

5. The device for cutting plastic bags according to claim 4, characterized in that: A slide rod (15) is fixedly provided inside the mounting box (14), and the slide rod (15) moves through the slider (16).

6. The device for cutting plastic bags according to claim 4, characterized in that: The mounting box (14) is movably provided with a movable block (21) inside. Adjustment blocks (22) are rotatably provided on both sides of the movable block (21). The two sets of adjustment blocks (22) are rotatably connected to two sets of sliders (16). A connecting rod (23) is fixedly provided on the outside of the movable block (21). The connecting rod (23) movably passes through the mounting box (14) and extends to the outside. An adjustment plate (24) is fixedly provided on the outer end of the connecting rod (23) located on the outer part of the mounting box (14). A second spring (25) is sleeved on the outside of the connecting rod (23). One end of the second spring (25) is connected to the mounting box (14), and the other end of the second spring (25) is connected to the movable block (21).

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