Pressing device for paper box cutting
By introducing a limiting and locking mechanism into the pressing device for paper box cutting, the displacement problem of paper boxes during the conveying process is solved, the cutting accuracy and production efficiency are improved, and the quick replacement of the cutter is realized, thus enhancing the practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN FULLBRIGHT IND CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional paper box cutting pressing devices lack a dedicated paper box limiting mechanism, which makes the paper boxes prone to displacement or deviation during the conveying process, affecting cutting accuracy and production efficiency.
A pressing device for cutting paper boxes, including a limiting mechanism and a locking mechanism, was designed. The paper box is fixed in the center position of the conveyor belt by an electric push rod and a linkage system, and the cutter can be quickly changed by a spring and a pin.
This ensures that the cardboard box remains centered during transport, improving cutting accuracy and production efficiency, while also enabling quick blade replacement and enhancing the device's practicality.
Smart Images
Figure CN224116846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper box processing technology, and in particular to a pressing device for cutting paper boxes. Background Technology
[0002] Paper box cutting pressing devices are commonly used in the packaging industry. They are primarily used to cut and shape cardboard or cartons into specific forms using pressing force. These devices improve production efficiency and ensure cutting precision and consistency. Paper box cutting pressing devices are an indispensable part of the packaging industry, and different types are suitable for different production needs. Selecting the appropriate cutting equipment based on the paper box material, production scale, and design requirements can effectively improve production efficiency and product quality.
[0003] In traditional paper box cutting pressing devices, the conveyor mechanism typically lacks a dedicated paper box limiting mechanism. This leads to easy displacement or offset of the paper boxes during transport. Due to insufficient precision in positioning the paper boxes on the conveyor belt, they may shift laterally or become uneven vertically as the belt moves. This displacement directly affects the accuracy of subsequent cutting processes, reducing production efficiency and overall product quality. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a pressing device for paper box cutting, which aims to improve the problem of reduced production efficiency and product quality caused by the fact that the conveying mechanism of the pressing device for paper box cutting usually does not have a dedicated paper box limiting mechanism.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressing device for cutting paper boxes, comprising a gantry frame, a conveyor belt inside the gantry frame, a baffle inside the conveyor belt, baffles fixedly connected to both sides of the baffle, two hydraulic cylinders fixedly connected to the bottom inside the gantry frame, pressure blocks fixedly connected to the output ends of the two hydraulic cylinders, a telescopic rod fixedly connected to the top inside the gantry frame, a cutting frame fixedly connected to the output end of the telescopic rod, a mounting base slidably connected to the bottom of the cutting frame, a cutter fixedly connected to the bottom of the mounting base, a limiting mechanism provided at the top of the conveyor belt, the limiting mechanism being used to ensure that the paper box is always in the center position of the baffle during the conveying and cutting process, and a locking mechanism provided on the outside of the cutting frame, the locking mechanism being used to quickly replace the cutter;
[0006] The limiting mechanism includes a mounting frame, which is fixedly connected inside the gantry frame. An electric push rod is fixedly connected to the bottom of the mounting frame, and a push block is fixedly connected to the output end of the electric push rod. Two connecting rods are rotatably connected to the side of the push block away from the electric push rod. An L-shaped frame is rotatably connected to the side of each of the two connecting rods away from the push block. A push plate is fixedly connected to the top of each of the two L-shaped frames, and a limiting plate is fixedly connected to the opposite side of each of the two push plates.
[0007] As a further description of the above technical solution:
[0008] The bottom of the electric push rod is fixedly connected to the inner bottom end of the gantry frame, and the bottom of the push block is slidably connected to the inner bottom end of the gantry frame.
[0009] As a further description of the above technical solution:
[0010] The mounting bracket is internally fixedly connected to a stabilizing frame, and the tops of the two L-shaped brackets are slidably connected to the bottom of the stabilizing frame.
[0011] As a further description of the above technical solution:
[0012] The push plate penetrates the interior of the baffle.
[0013] As a further description of the above technical solution:
[0014] The engaging mechanism includes two mounting shells, each fixedly connected to the opposite ends of the cutting frame. A spring is fixedly connected inside each of the two mounting shells, and a limit block is fixedly connected to the opposite sides of each of the two springs. A pin is fixedly connected inside each of the two limit blocks, and the pin passes through the outside of the cutting frame and engages with the mounting base.
[0015] As a further description of the above technical solution:
[0016] A fixing box is fixedly connected to the top of the mounting shell, a sliding plate is slidably connected inside the fixing box, a baffle plate is fixedly connected to the bottom of the sliding plate, and the bottom of the baffle plate abuts against the top of the limiting block.
[0017] As a further description of the above technical solution:
[0018] The limiting block is slidably connected inside the mounting shell, and the spring passes through both ends of the mounting shell.
[0019] As a further description of the above technical solution:
[0020] A handle is fixedly connected to the side of the spring away from the limiting block.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, after the cardboard box to be cut is conveyed to the cutting position via a conveyor belt, a pressure block is lowered by a hydraulic cylinder to press it firmly, and a cutter is lowered by a telescopic rod to cut it. After cutting, the conveyor belt is restarted to transport it to the next process. During the transport of the cardboard box, the push block is pushed by an electric push rod, which drives two L-shaped frames through a connecting rod, causing the two push plates to bring the two limiting plates together and fix the cardboard box in the center position of the conveyor belt for cutting. This achieves the effect of ensuring that the cardboard box is always in the center position of the conveyor belt during the transport process through the limiting mechanism, ensuring the accuracy of subsequent cardboard box cutting, improving production efficiency, and improving the final quality of the product.
[0023] 2. In this utility model, when replacing the cutter, the pin is pulled out from the mounting base 8 by pulling the handle to both sides, causing it to drive the limit block to compress the spring. When the limit block moves, the baffle plate automatically falls due to gravity, blocking the limit block and preventing it from moving. At this time, the old cutter and the mounting base can be removed and replaced with a new cutter. The baffle plate is pulled up by the slide plate, and the spring rebound force pushes the limit block to drive the pin to move forward, and it can be re-engaged and fixed with the mounting base. This achieves the effect of quickly replacing the cutter through the engagement mechanism, improving the production efficiency of the device and enhancing its practicality. Attached Figure Description
[0024] Figure 1 This is a perspective view of a pressing device for cutting paper boxes according to the present invention;
[0025] Figure 2 This is a schematic diagram of the limiting mechanism of a pressing device for cutting paper boxes according to the present invention;
[0026] Figure 3 This is a schematic diagram of a cutting frame for a pressing device for cutting paper boxes according to the present invention;
[0027] Figure 4 This is a cross-sectional view of the mounting shell of a pressing device for cutting paper boxes according to the present invention.
[0028] Legend:
[0029] 1. Gantry frame; 2. Baffle; 3. Conveyor belt; 4. Hydraulic cylinder; 5. Pressure block; 6. Telescopic rod; 7. Cutting frame; 8. Mounting base; 9. Cutter; 10. Mounting bracket; 11. Electric push rod; 12. Push block; 13. Connecting rod; 14. L-shaped frame; 15. Push plate; 16. Limiting plate; 17. Stabilizing frame; 18. Mounting shell; 19. Spring; 20. Limiting block; 21. Pin; 22. Fixing box; 23. Slide plate; 24. Barrier plate; 25. Handle. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a cardboard box cutting and pressing device, including a gantry frame 1, which serves to fix the internal structure. The device is characterized by: a conveyor belt 3 inside the gantry frame 1 for transporting cardboard boxes; baffles 2 inside the conveyor belt 3, with baffles 2 fixedly connected to both sides of each baffle 2; two hydraulic cylinders 4 fixedly connected to the bottom of the gantry frame 1, which provide power to push pressing blocks 5; pressing blocks 5 fixedly connected to the output ends of both hydraulic cylinders 4, which press the cardboard boxes to prevent them from moving; and the top of the gantry frame 1... A telescopic rod 6 is fixedly connected to the end of the paper box. The telescopic rod 6 provides power for cutting the paper box. A cutting frame 7 is fixedly connected to the output end of the telescopic rod 6. The cutting frame 7 connects to the mounting base 8. The mounting base 8 is slidably connected to the bottom of the cutting frame 7. The mounting base 8 connects to the cutter 9. The cutter 9 is fixedly connected to the bottom of the mounting base 8. The cutter 9 cuts the paper box. A limit mechanism is provided at the top of the conveyor belt 3. The limit mechanism is used to keep the paper box in the center position of the baffle 2 during the conveying and cutting process. A locking mechanism is provided on the outside of the cutting frame 7. The locking mechanism is used to quickly replace the cutter 9.
[0032] The limiting mechanism includes a mounting frame 10, which serves to fix the internal structure. The mounting frame 10 is fixedly connected to the inside of the gantry frame 1. An electric push rod 11 is fixedly connected to the bottom of the mounting frame 10. The electric push rod 11 provides power to move the push block 12. The output end of the electric push rod 11 is fixedly connected to the push block 12. The push block 12 serves to install the connecting rod 13. Two connecting rods 13 are rotatably connected to the side of the push block 12 away from the electric push rod 11. The connecting rods 13 serve to connect to the L-shaped frame 14. The side of each of the two connecting rods 13 away from the push block 12 is rotatably connected to the L-shaped frame 14. The L-shaped frame 14 serves to connect to the push plate 15. The top of each of the two L-shaped frames 14 is fixedly connected to the push plate 15. The push plate 15 serves to connect to the limiting plate 16. The opposite sides of each of the two push plates 15 are fixedly connected to the limiting plate 16. The limiting plate 16 serves to limit the paper box. The bottom of the electric push rod 11 is fixedly connected to the bottom of the inside of the gantry frame 1. The bottom of the push block 12 is slidably connected to the bottom of the inside of the gantry frame 1. The mounting frame 10 is fixedly connected to the inside of the stabilizing frame 17. The tops of the two L-shaped frames 14 are slidably connected to the bottom of the stabilizing frame 17. The push plate 15 penetrates the inside of the baffle 2.
[0033] During the conveying process, the paper box is pushed by the electric push rod 11 to push the push block 12. The two connecting rods 13 drive the two L-shaped frames 14, so that the push plate 15 drives the two limiting plates 16 to gather together and restrict the paper box to the center position of the conveyor belt 3 for conveying.
[0034] Reference Figure 1 and Figure 3 - Figure 4 The engaging mechanism includes two mounting shells 18, which serve to fix the internal structure. The opposite sides of the two mounting shells 18 are fixedly connected to both ends of the cutting frame 7. Springs 19 are fixedly connected inside the two mounting shells 18. Springs 19 provide elastic force to push the limiting blocks 20. Limiting blocks 20 are fixedly connected to the opposite sides of the two springs 19. Limiting blocks 20 prevent springs 19 from falling off. Pins 21 are fixedly connected inside the two limiting blocks 20. Pins 21 engage and fix the mechanism. Pins 21 pass through the outside of the cutting frame 7 and engage with the mounting base 8. A fixing box 22 is fixedly connected to the top of the mounting shell 18. The fixing box 22 serves to fix the internal structure. A sliding plate 23 is slidably connected inside the fixing box 22. The sliding plate 23 serves to connect the baffle plate 24. The baffle plate 24 is fixedly connected to the bottom of the sliding plate 23. The baffle plate 24 serves to prevent the movement of the limiting block 20. The bottom of the baffle plate 24 abuts against the top of the limiting block 20. The limiting block 20 is slidably connected inside the mounting shell 18. A spring 19 passes through both ends of the mounting shell 18. A handle 25 is fixedly connected to the side of the spring 19 away from the limiting block 20.
[0035] When replacing the cutter 9, pull the pin 21 out of the mounting base 8 using the handle 25. After replacing the cutter 9, the spring 19 will push the limit block 20 to drive the pin 21 to re-engage and fix it with the mounting base 8.
[0036] Working principle: After the cardboard box to be cut is conveyed to the cutting position by the conveyor belt 3, the pressure block 5 is lowered by the hydraulic cylinder 4 to press it firmly, and the cutter 9 is lowered by the telescopic rod 6 to cut it. After cutting, the conveyor belt 3 is restarted to transport it to the next process. During the transportation of the cardboard box, the electric push rod 11 is activated to push the push block 12, which drives the two L-shaped frames 14 through the connecting rod 13, so that the two push plates 15 drive the two limiting plates 16 to move together and fix the cardboard box in the center position of the conveyor belt 3 for cutting.
[0037] When replacing the cutter 9, pull the pin 21 out of the mounting base 8 by pulling the handle 25 to both sides, so that it drives the limit block 20 to compress the spring 19. When the limit block 20 moves, the barrier plate 24 will fall automatically due to gravity and block the limit block 20 so that it cannot move. At this time, the old cutter 9 and the mounting base 8 can be removed and replaced with the new cutter 9. Pull up the barrier plate 24 by the slide plate 23. The spring 19 pushes the limit block 20 to drive the pin 21 to move forward and re-engage with the mounting base 8.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pressing device for cutting paper boxes, comprising a gantry frame (1), characterized in that: The gantry frame (1) is equipped with a conveyor belt (3) inside, and a baffle (2) is installed inside the conveyor belt (3). Both sides of the baffle (2) are fixedly connected to baffle (2). Two hydraulic cylinders (4) are fixedly connected to the bottom of the gantry frame (1). The output ends of the two hydraulic cylinders (4) are fixedly connected to pressure blocks (5). A telescopic rod (6) is fixedly connected to the top of the gantry frame (1). A cutting frame (7) is fixedly connected to the output end of the telescopic rod (6). A mounting base (8) is slidably connected to the bottom of the cutting frame (7). A cutter (9) is fixedly connected to the bottom of the mounting base (8). A limiting mechanism is provided at the top of the conveyor belt (3). The limiting mechanism is used to keep the paper box in the center position of the baffle (2) during the conveying and cutting process. A locking mechanism is provided on the outside of the cutting frame (7). The locking mechanism is used to quickly replace the cutter (9). The limiting mechanism includes a mounting frame (10), which is fixedly connected inside the gantry frame (1). An electric push rod (11) is fixedly connected to the bottom of the mounting frame (10). A push block (12) is fixedly connected to the output end of the electric push rod (11). Two connecting rods (13) are rotatably connected to the side of the push block (12) away from the electric push rod (11). An L-shaped frame (14) is rotatably connected to the side of the two connecting rods (13) away from the push block (12). A push plate (15) is fixedly connected to the top of the two L-shaped frames (14). A limiting plate (16) is fixedly connected to the opposite side of the two push plates (15).
2. The pressing device for cutting paper boxes according to claim 1, characterized in that: The bottom of the electric push rod (11) is fixedly connected to the inner bottom end of the gantry frame (1), and the bottom of the push block (12) is slidably connected to the inner bottom end of the gantry frame (1).
3. The pressing device for cutting paper boxes according to claim 1, characterized in that: The mounting bracket (10) is internally fixedly connected to a stabilizing frame (17), and the tops of the two L-shaped frames (14) are slidably connected to the bottom of the stabilizing frame (17).
4. The pressing device for cutting paper boxes according to claim 1, characterized in that: The push plate (15) penetrates the interior of the baffle (2).
5. The pressing device for cutting paper boxes according to claim 1, characterized in that: The engaging mechanism includes two mounting shells (18), with the opposite sides of the two mounting shells (18) fixedly connected to both ends of the cutting frame (7). Springs (19) are fixedly connected inside the two mounting shells (18), and limit blocks (20) are fixedly connected to the opposite sides of the two springs (19). Pins (21) are fixedly connected inside the two limit blocks (20), and the pins (21) penetrate the outside of the cutting frame (7) and engage with the mounting base (8).
6. The pressing device for cutting paper boxes according to claim 5, characterized in that: The top of the mounting shell (18) is fixedly connected to a fixing box (22), and a sliding plate (23) is slidably connected inside the fixing box (22). A barrier plate (24) is fixedly connected to the bottom of the sliding plate (23), and the bottom of the barrier plate (24) abuts against the top of the limiting block (20).
7. The pressing device for cutting paper boxes according to claim 5, characterized in that: The limiting block (20) is slidably connected inside the mounting shell (18), and the spring (19) passes through both ends of the mounting shell (18).
8. A pressing device for cutting paper boxes according to claim 5, characterized in that: A handle (25) is fixedly connected to the side of the spring (19) away from the limiting block (20).