Carton cutting device

Abstract

The utility model relates to the technical field of cartons, and discloses a carton cutting device which comprises a conveying device, supporting plates are arranged on the four sides of the conveying device, a fixing column is fixedly installed between every two adjacent supporting plates, a connecting plate is fixedly installed at the bottoms of the two fixing columns, and a cutting knife is arranged at the bottom of the connecting plate. Sliding grooves are formed in the two sides of the bottom of the connecting plate, and sliding blocks are installed in the two sliding grooves in a sliding mode. By arranging the mounting base and the whetstone, the two sides of the cutting knife can be polished, so that tiny defects and passivation on the cutting edge are removed, the sharpness of the cutting edge is recovered, a smoother and more accurate cutting effect is provided, meanwhile, abrasion and damage of the cutting edge can be reduced, the service life of the cutting knife is prolonged, unnecessary replacement and repair cost is avoided, and the cutting efficiency is improved. And by arranging the water storage box, the whetstone can be wetted before being polished, the whetstone is prevented from being overheated, and the cutter and the whetstone are prevented from being damaged.

Description

Technical Field

[0001] This application relates to the technical field of cartons, and in particular to a carton cutting device. Background Art

[0002] A carton is a common packaging container, usually made of cardboard, corrugated cardboard or other paper product materials. It is widely used for transporting, storing and protecting various goods, covering from daily consumer goods to heavy industrial products.

[0003] A Chinese patent with the publication number CN221022539U discloses a carton cutting device for carton production, which includes two rollers. Each end of each roller is respectively connected with a first support plate and a second support plate distributed up and down through bearings. One end of the roller is externally connected to a driving motor, and a conveyor belt is commonly driven and connected to the two rollers; a cutting knife is arranged above the conveyor belt, and a brush is arranged below; through the setting of the brush and in cooperation with the connection of the conveyor belt, the brush cleans the powder on the surface of the conveyor belt, making the working area clean and reducing the workload of cleaning.

[0004] However, the above cutting device has the following disadvantages: The device cleans the surface of the conveyor belt by setting a brush. However, after the cutting knife of the device cuts cartons for a long time, the surface of the cutting knife will be passivated, reducing the sharpness of the blade edge, affecting the cutting effect, and at the same time increasing the wear degree of the blade edge and reducing the service life of the cutting knife.

[0005] Therefore, we propose a carton cutting device to solve this problem.

[0006] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0007] In order to solve the problem that the sharpness of the cutting knife will decrease after long-term use, this application provides a carton cutting device.

[0008] A carton cutting device provided by this application adopts the following technical solution:

[0009] A carton cutting device includes a conveying device. Support plates are arranged on four sides of the conveying device. Fixed columns are fixedly installed between two adjacent support plates. A connecting plate is fixedly installed at the bottom of the two fixed columns. A cutting knife is arranged at the bottom of the connecting plate. Sliding grooves are arranged on both sides of the bottom of the connecting plate. Sliders are slidably installed in the two sliding grooves. The two sliders are located on both sides of the cutting knife. Fixed seats are arranged at the bottoms of the two sliders. A rotating shaft is rotatably installed in the two fixed seats. Connecting shafts are fixedly installed on the two rotating shafts. Mounting seats are fixedly installed at one ends of the two connecting shafts. Grindstones are arranged in the two mounting seats. One sides of the two grindstones are in contact with one side of the cutting knife.

[0010] Preferably, a limiting groove is formed through between the two sliding grooves. A limiting block is slidably installed in the limiting groove. Both sides of the limiting block are fixedly connected to the slider.

[0011] Preferably, a first hydraulic cylinder is fixedly installed at the top of the connecting plate. The output end of the first hydraulic cylinder is fixedly connected to the top of the cutting knife. A second hydraulic cylinder is fixedly installed on one side of the connecting plate. The output end of the second hydraulic cylinder penetrates through the connecting plate and the limiting groove. The output end of the second hydraulic cylinder is fixedly connected to the limiting block. Mounting grooves are arranged at the bottoms of the two sliders. Third hydraulic cylinders are fixedly installed in the two mounting grooves. The output end of the third hydraulic cylinder is in transmission connection with the fixed seat.

[0012] Preferably, motors are fixedly installed on one sides of the two fixed seats. The output end of the motor is in transmission connection with the rotating shaft.

[0013] Preferably, fixing frames are fixedly installed on both sides of the bottom of one of the fixed columns. A water storage box is fixedly installed between the two fixing frames. The water storage box is located at the bottoms of the mounting seat and the grindstone.

[0014] Preferably, a water inlet pipe is communicated with one side of the water storage box. A valve is arranged on the water inlet pipe.

[0015] In summary, the present application includes the following beneficial technical effects: By setting the mounting seat and the grindstone, the two sides of the cutting knife can be polished, so as to remove the tiny defects and passivation on the blade edge, restore the sharpness of the blade edge, provide a smoother and more accurate cutting effect, and at the same time can reduce the wear and damage of the blade edge, extend the service life of the cutting knife, avoid unnecessary replacement and repair costs, save costs. By setting the water storage box, the grindstone can be moistened before grinding, preventing the grindstone from overheating and avoiding damage to the tool and the grindstone itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the application;

[0017] Figure 2 is a schematic three-dimensional sectional structure diagram of an application embodiment;

[0018] Figure 3 is a schematic three-dimensional sectional structure diagram of a slider in an application embodiment.

[0019] Explanation of reference numerals: 1, conveying device; 2, cutting knife; 3, connecting plate; 4, first hydraulic cylinder; 5, second hydraulic cylinder; 6, valve; 7, water inlet pipe; 8, water storage box; 9, fixing frame; 10, limiting groove; 11, slider; 12, limiting block; 13, mounting seat; 14, grindstone; 15, connecting shaft; 16, rotating shaft; 17, fixing seat; 18, motor; 19, third hydraulic cylinder. Detailed implementation manners

[0020] The following further describes the present application in detail with reference to the Figures 1-3 accompanying drawings.

[0021] An embodiment of the present application discloses a carton cutting device. Refer to Figures 1-3 , a carton cutting device includes a conveying device 1. Support plates are arranged on all four sides of the conveying device 1. Fixed columns are fixedly installed between adjacent two support plates. The bottom of the two fixed columns is fixedly installed with a connecting plate 3. A cutting knife 2 is arranged at the bottom of the connecting plate 3. Sliding grooves are arranged on both sides of the bottom of the connecting plate 3. Two sliders 11 are slidably installed in the two sliding grooves. The two sliders 11 are located on both sides of the cutting knife 2. Fixing seats 17 are arranged at the bottoms of the two sliders 11. Rotating shafts 16 are rotatably installed in the two fixing seats 17. Connecting shafts 15 are fixedly installed on the two rotating shafts 16. Mounting seats 13 are fixedly installed at one ends of the two connecting shafts 15. Grindstones 14 are arranged in the two mounting seats 13. One side of each of the two grindstones 14 is in contact with one side of the cutting knife 2; by arranging the mounting seats 13 and the grindstones 14, the two sides of the cutting knife 2 can be polished, thereby removing minute defects and passivation on the cutting edge, restoring the sharpness of the cutting edge, providing a smoother and more precise cutting effect, and at the same time being able to reduce the wear and damage of the cutting edge, extend the service life of the cutting knife 2, avoid unnecessary replacement and repair costs, save costs, and by arranging the water storage box 8, the grindstone 14 can be wetted before polishing, preventing the grindstone 14 from overheating and avoiding damage to the cutting tool and the grindstone 14 itself.

[0022] Refer to Figures 2-3 , a limiting groove 10 is formed through between the two sliding grooves. A limiting block 12 is slidably installed in the limiting groove 10. Both sides of the limiting block 12 are fixedly connected to the slider 11, and the two sliders 11 can be pushed to move simultaneously.

[0023] Refer to Figures 1-3, a first hydraulic cylinder 4 is fixedly installed at the top of the connecting plate 3. The output end of the first hydraulic cylinder 4 is fixedly connected to the top of the cutting knife 2. A second hydraulic cylinder 5 is fixedly installed on one side of the connecting plate 3. The output end of the second hydraulic cylinder 5 penetrates through the connecting plate 3 and the limiting groove 10. The output end of the second hydraulic cylinder 5 is fixedly connected to the limiting block 12. Installation grooves are provided at the bottoms of the two sliders 11. Third hydraulic cylinders 19 are fixedly installed in the two installation grooves. The output ends of the third hydraulic cylinders 19 are in transmission connection with the fixed seats 17. The first hydraulic cylinder 4 can drive the cutting knife 2 to move downward for cutting. The second hydraulic cylinder 5 can push the limiting block 12 and the slider 11 to move to polish the cutting knife 2. The third hydraulic cylinder 19 can push the fixed seat 17 to move downward, so that the grindstone 14 is soaked in water for wetting.

[0024] Refer to Figure 3 , on one side of each of the two fixed seats 17, a motor 18 is fixedly installed. The output end of the motor 18 is in transmission connection with the rotating shaft 16, which can drive the rotating shaft 16 to rotate.

[0025] Refer to Figure 1 and Figure 3 , on both sides of the bottom of one of the fixed columns, fixed frames 9 are fixedly installed. A water storage box 8 is fixedly installed between the two fixed frames 9. The water storage box 8 is located at the bottoms of the mounting seat 13 and the grindstone 14, and can soak and wet the grindstone 14.

[0026] Refer to Figure 1 , a water inlet pipe 7 is communicated and arranged on one side of the water storage box 8. A valve 6 is arranged on the water inlet pipe 7, and water can be conveyed into the water storage tank.

[0027] The implementation principle of a carton cutting device according to an embodiment of the present application is as follows: After the carton cutting is completed, the first hydraulic cylinder 4 can be started. After the cutting knife 2 is lifted to the top, the motor 18 is started. The motor 18 drives the rotating shaft 16 to rotate, the rotating shaft 16 drives the connecting shaft 15 to rotate, and the connecting shaft 15 drives the mounting seat 13 and the grindstone 14 to rotate downward. Then, the third hydraulic cylinder 19 is started. The third hydraulic cylinder 19 pushes the mounting seat 13 and the grindstone 14 into the water storage box 8 to moisten the grindstone 14. The descending height is only limited to immersing the mounting seat 13 in the water without moving the fixed seat 17 into the water storage box 8. Then, the motor 18 drives the rotating shaft 16 to rotate again, the rotating shaft 16 drives the connecting shaft 15 to rotate, and the connecting shaft 15 drives the two mounting seats 13 and the grindstone 14 to rotate to the side close to the cutting knife 2. After the grindstone 14 stops dripping water, the second hydraulic cylinder 5 is started. The second hydraulic cylinder 5 pushes the limiting block 12 to move, the limiting block 12 drives the two sliding blocks 11 to move, and the two sliding blocks 11 drive the two third hydraulic cylinders 19 to move, thereby driving the two mounting seats 13 and the grindstone 14 to move to polish the surface of the cutting knife 2 to ensure that the cutting knife 2 is always in a sharp state. If the water stains on the surface of the grindstone 14 dry out, the grindstone 14 can be immersed in the water again. The impurities falling on the conveying device 1 during polishing can be cleaned by the brush at the bottom of the device body.

[0028] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the internal connection of two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0029] Second: In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0030] Finally: The above are only the preferred embodiments of the present utility model and are not used 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 within the protection scope of the present utility model.

[0031] The above are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A carton cutting device, comprising a conveying device (1), characterized in that: Support plates are arranged on the four sides of the conveying device (1), and a fixing column is fixedly installed between two adjacent support plates. A connecting plate (3) is fixedly installed at the bottom of the two fixing columns, and a cutting knife (2) is arranged at the bottom of the connecting plate (3). Slide grooves are arranged on both sides of the bottom of the connecting plate (3), and sliders (11) are slidably installed in the two slide grooves. The two sliders (11) are located on both sides of the cutting knife (2). Fixed seats (17) are arranged at the bottom of the two sliders (11), and rotating shafts (16) are rotatably installed in the two fixed seats (17). Connecting shafts (15) are fixedly installed on the two rotating shafts (16), and mounting seats (13) are fixedly installed at one end of the two connecting shafts (15). Whetstones (14) are arranged in the two mounting seats (13), and one side of the two grindstones (14) is in contact with one side of the cutting knife (2).

2. A carton cutting device according to claim 1, characterized in that: A limiting groove (10) is provided between the two sliding grooves, a limiting block (12) is slidably installed in the limiting groove (10), and both sides of the limiting block (12) are fixedly connected to the sliding block (11).

3. A carton cutting device according to claim 2, characterized in that: A first hydraulic cylinder (4) is fixedly mounted on the top of the connecting plate (3), and an output end of the first hydraulic cylinder (4) is fixedly connected to the top of the cutting blade (2). A second hydraulic cylinder (5) is fixedly mounted on one side of the connecting plate (3), and an output end of the second hydraulic cylinder (5) passes through the connecting plate (3) and the limiting groove (10), and an output end of the second hydraulic cylinder (5) is fixedly connected to the limiting block (12). The bottoms of the two sliding blocks (11) are both provided with mounting grooves, and a third hydraulic cylinder (19) is fixedly mounted in the two mounting grooves, and an output end of the third hydraulic cylinder (19) is transmission-connected to a fixing seat (17).

4. A carton cutting device according to claim 3, characterized in that: A motor (18) is fixedly mounted on one side of each of the two fixing seats (17), and an output end of the motor (18) is drivingly connected to the rotating shaft (16).

5. A carton cutting device according to claim 1, characterized in that: A fixing frame (9) is fixedly mounted on both sides of the bottom of one of the fixing columns, a water storage box (8) is fixedly mounted between the two fixing frames (9), and the water storage box (8) is located at the bottom of the mounting seat (13) and the grindstone (14).

6. A carton cutting device according to claim 5, characterized in that: One side of the water storage box (8) is connected to a water inlet pipe (7), and a valve (6) is provided on the water inlet pipe (7).

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