A trimming device for carton production

By combining CCD camera scanning and bidirectional screw limiting rods, precise cutting is achieved in the carton production process, solving the problems of resource waste and carton misalignment, and improving cutting accuracy and production efficiency.

CN224510547UActive Publication Date: 2026-07-17CHENGDU DAOFENGXING PACKAGING MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU DAOFENGXING PACKAGING MATERIAL CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing carton trimming devices suffer from significant resource waste and struggle to cope with carton shifts during transport, leading to inaccurate cutting and waste.

Method used

A CCD camera is used to scan and position the edges of the carton. A cutter with a bidirectional screw and a limit rod is used. The carton is accurately positioned and transported by an electric push rod and a conveying assembly. High-speed steel cutting blades are used for cutting.

Benefits of technology

It enables precise cutting of cartons of different widths, reduces resource waste, avoids unnecessary cutting waste and carton misalignment, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an edge cutting device for carton production relates to carton cutting technical field, including frame, the frame both sides all are provided with the barrier net that carries out the protection to staff, the frame top rotatoryly provided with the conveying roller that is convenient for carton movement, its characterized in that, the frame top is provided with the edge cutting assembly that carries out the cutting to carton, the frame bottom is provided with the positioning assembly that carries out the location to carton, the edge cutting assembly includes the first electric push rod of fixed mounting in the frame side, and the output of first electric push rod is fixedly connected with the frame. The utility model discloses through setting edge cutting assembly, CCD camera scans carton edge, and the cutting position is positioned, and the driving motor is controlled simultaneously to drive the rotation of bidirectional screw rod, and two groups of cutter synchronous movement, and the limiting rod prevents the rotation of cutter, at this moment, the cutter can cut the carton of different width, prevents the change of cutting position simultaneously, makes the carton not to be cut in the cutting position, causes the unnecessary waste.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box trimming technology, specifically a trimming device for cardboard box production. Background Technology

[0002] In the cardboard box production process, edge trimming is one of the important processing steps, used to remove excess material from the edges of the cardboard to ensure accurate box dimensions and neat edges. Traditional cardboard box edge trimming devices typically use fixed cutters or manually adjustable cutter spacing.

[0003] An existing patent (authorization announcement number: CN223001159U) discloses an edge cutting device for a carton printing machine. The key technical points of the solution are: by setting a correction mechanism, in cooperation with the base and four sets of cylinders, the four sets of cylinders can push the base to move upward, and through two sets of moving plates, push six sets of push plates to move upward. Then, through the cooperation of two sets of telescopic rods, two sets of movable plates, and two sets of connecting parts, the six sets of push plates can be driven to move inside the six sets of vertical holes respectively. With the cooperation of two sets of limiting plates, the two sides of the carton can be limited, thereby enabling the adjustment and correction of the carton, saving a lot of time, improving the overall production efficiency, reducing the workload of workers, and preventing uneven straight cutting or miscutting of the effective printing area, thus improving product quality.

[0004] However, the above technical solution still has certain defects. The simultaneous driving of four sets of cylinders is only for limiting the position of the carton, which is a serious waste of resources. At the same time, it is difficult to deal with the possible deviation of the carton during the transportation process. Therefore, a cutting device for carton production is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a cutting device for carton production to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cutting device for carton production includes a frame, with protective nets on both sides of the frame for workers, a conveying roller rotatably mounted on the top of the frame to facilitate the movement of the carton, a cutting assembly for cutting the carton on the top of the frame, and a positioning assembly for limiting the position of the carton at the bottom of the frame.

[0008] The cutting assembly includes a first electric push rod fixedly installed on the side of the frame. The output end of the first electric push rod is fixedly connected to a frame. The side of the frame is also provided with two sets of slide rails. Sliders are provided on both sides of the frame and slide on the slide rails. A bidirectional screw and a limiting rod are provided through the frame. A drive motor is provided at one end of the bidirectional screw, and two sets of threads with opposite directions are provided on the bidirectional screw. A cutter is provided through the bidirectional screw and the limiting rod. A CCD camera is also provided at the center of the frame.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] As a further embodiment of this utility model: the cutter includes a threaded sleeve threaded on a bidirectional screw and a sliding sleeve slidably mounted on a limiting rod, and both the threaded sleeve and the sliding sleeve are fixedly mounted on a protective shell. A cutting blade is rotatably mounted at the center of the protective shell. A first motor is provided on the side of the protective shell away from the cutting blade, and the output end of the first motor is fixedly connected to the center of the cutting blade.

[0011] As a further improvement of this utility model: the cutter is provided in two sets, and is respectively installed on the two sets of threads of the bidirectional screw.

[0012] As a further embodiment of this utility model: the positioning component includes a second electric push rod disposed at the bottom of the frame, the output end of the second electric push rod is provided with a movable plate, and the end of the second electric push rod away from the output end is also fixedly connected to the movable plate, the movable plate is provided with a guide rod through it, and the movable plate moves along the guide rod, the top of the movable plate is fixedly provided with a connector, and a conveying component for conveying the carton is installed on the connector.

[0013] As a further embodiment of this utility model: the conveying assembly includes a support frame fixedly mounted on the top of the connector, a second motor fixedly mounted on the bottom of the support frame, a transmission roller fixedly mounted on the output end of the second motor, a belt groove provided on the transmission roller, and two sets of transmission rollers provided, with the two sets of transmission rollers being mutually driven by a belt.

[0014] As a further improvement of this utility model: the first electric push rod is provided in two sets, and the two sets of first electric push rods are respectively provided on the left and right sides of the frame.

[0015] As a further improvement of this utility model: the guide rod, the moving plate, the connector, and the conveying assembly are all provided in two sets, and the two ends of the two sets of moving plates are respectively penetrated by the two sets of guide rods.

[0016] As a further improvement of this utility model, the cutting blade is made of high-speed steel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model sets up a cutting edge assembly. A CCD camera scans the edge of the carton to locate the cutting position. At the same time, the drive motor drives the bidirectional screw to rotate, and the two sets of cutters move synchronously. The limit rod prevents the cutter from rotating. At this time, the cutter can cut cartons of different widths, while preventing the cutting position from changing and causing the carton to be cut at the wrong position, resulting in unnecessary waste.

[0019] 2. This utility model, by setting a positioning component, pushes the moving plate to slide along the guide rod when the second electric push rod extends or retracts, ensuring that the carton is clamped or released synchronously on both sides. The driven transmission roller is driven by the belt to rotate synchronously, and the carton is placed on the transmission roller. It is conveyed forward by the friction between the belt and the side of the carton, and at the same time, the carton is positioned and conveyed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the edge-cutting component of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the cutter of this utility model;

[0023] Figure 4 This is a schematic diagram of the positioning component of this utility model;

[0024] Figure 5 This is a schematic diagram of the transmission component of this utility model;

[0025] Figure 6 For the present utility model Figure 5 Enlarged view of point A in the middle.

[0026] Attached image labels: 1. Frame; 2. Barrier net; 3. Edge trimming assembly; 4. Conveyor roller; 5. Positioning assembly;

[0027] 31. Frame; 32. Slide rail; 33. First electric actuator; 34. Slider; 35. Bidirectional screw; 36. Limiting rod; 37. CCD camera; 38. Cutter;

[0028] 381. First motor; 382. Protective housing; 383. Threaded sleeve; 384. Sliding sleeve; 385. Cutting blade;

[0029] 51. Second electric actuator; 52. Moving plate; 53. Guide rod; 54. Connector; 55. Conveying assembly;

[0030] 551. Second motor; 552. Transmission roller; 553. Belt; 554. Support frame. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] In one embodiment, such as Figures 1-6 As shown, a cutting device for carton production includes a frame 1, with protective nets 2 on both sides of the frame 1 to protect workers, a conveying roller 4 rotatably mounted on the top of the frame 1 to facilitate the movement of the carton, a cutting component 3 for cutting the carton on the top of the frame 1, and a positioning component 5 for limiting the position of the carton at the bottom of the frame 1.

[0033] In this embodiment, the protective nets 2 on both sides of the frame 1 can prevent operators from accidentally touching the cutting area and avoid work-related accidents. The cutting assembly 3 is installed on the top of the frame 1. The frame 31 is pushed along the slide rail 32 by the cylinder, so that the cutting blade 385 is aligned with the edge of the carton. At the same time, while driving the carton to move, the conveying roller 4 at the bottom facilitates the movement of the carton. The positioning assembly 5 at the bottom of the frame 1 drives the moving plate 52 by the cylinder, which drives the conveying assembly 55 to clamp or release the carton to prevent the carton from shifting during cutting.

[0034] In one embodiment, such as Figure 4 As shown, the positioning component 5 includes a second electric push rod 51 disposed at the bottom of the frame 1. A movable plate 52 is disposed at the output end of the second electric push rod 51, and the end of the second electric push rod 51 away from the output end is also fixedly connected to the movable plate 52. A guide rod 53 is provided through the movable plate 52, and the movable plate 52 moves along the guide rod 53. A connector 54 is fixedly disposed at the top of the movable plate 52, and a conveying component 55 for conveying cartons is mounted on the connector 54. Two sets of the guide rod 53, movable plate 52, connector 54, and conveying component 55 are provided. The two ends of the movable plate 52 are respectively penetrated by two sets of guide rods 53; when the second electric push rod 51 extends or retracts, it pushes the movable plate 52 to slide along the guide rods 53. Due to the constraint of the guide rods 53, the movable plate 52 maintains stable linear motion, avoiding shaking or jamming. The two sets of cylinders, movable plate 52, guide rods 53 and conveying components 55 are symmetrically arranged to ensure that the carton is clamped or released synchronously on both sides. When the cylinder is activated, the movable plates 52 on both sides move towards or away from the center at the same time to achieve precise positioning of the carton. After positioning, the conveying components 55 on the connector 54 continue to convey the carton to ensure that the carton does not deviate during cutting.

[0035] In one embodiment, such as Figure 6As shown, the conveying assembly 55 includes a support frame 554 fixedly mounted on the top of the connector 54. A second motor 551 is fixedly mounted on the bottom of the support frame 554. A transmission roller 552 is fixedly mounted on the output end of the second motor 551. The transmission roller 552 is provided with a belt 553 groove, and there are two sets of transmission rollers 552. The two sets of transmission rollers 552 are mutually transmitted through belts 553. The support frame 554 is fixed to the top of the connector 54. After the second motor 551 is started, it drives the active transmission roller 552 directly connected to it to rotate, and drives the transmission roller 552 to rotate through the belt 553. The drive roller 552 rotates synchronously, and the carton is placed on the conveyor roller. It is conveyed forward by the friction between the belt 553 and the side of the carton. When the cylinder of the positioning component 5 drives the belt 553 to clamp the carton, the conveyor component 55 pauses briefly to ensure positioning stability. At the same time, the cutter 38 only cuts and repairs the protruding part of the upper corner of the carton, and the cutter 38 will not cut the entire side of the carton, so it will not affect the conveying of the belt 553. After the cutting is completed, the motor restarts immediately to continue conveying to the next station. The connector 54 is equipped with a sensor, and all electrical components are equipped with an external controller for centralized control.

[0036] In one embodiment, such as Figure 2 As shown, the edge-cutting assembly 3 includes a first electric push rod 33 fixedly installed on the side of the frame 1. The output end of the first electric push rod 33 is fixedly connected to a frame 31. Two sets of slide rails 32 are also provided on the side of the frame 1. Slider blocks 34 are provided on both sides of the frame 31, and the sliders 34 slide on the slide rails 32. A bidirectional screw 35 and a limiting rod 36 are passed through the frame 31. A drive motor is provided at one end of the bidirectional screw 35, and two sets of threads with opposite directions are provided on the bidirectional screw 35. A cutter 38 passes through the bidirectional screw 35 and the limiting rod 36. The center position of the frame 31... A CCD camera 37 is also provided. Two sets of the first electric push rods 33 are provided, and the two sets of first electric push rods 33 are respectively located on the left and right sides of the frame 31. The two sets of first electric push rods 33 synchronously push the frame 31 to move along the slide rail 32 to the working position, which can cut and position cartons of different heights. The CCD camera 37 scans the edge of the cartons at a rate of 200fps. The vision system calculates the actual cutting position. The drive motor drives the bidirectional screw 35 to rotate. The two sets of cutters 38 move synchronously. The limit rod 36 prevents the cutter 38 from rotating. At this time, the cutter 38 can cut cartons of different widths.

[0037] As a supplement: CCD camera 37 is installed at a preset height above the carton conveyor line, covering the full width of the carton from a top-down angle, ensuring that the edges are always in the center of the field of view. At the same time, CCD camera 37 only scans the width of the carton at the initial height. As CCD camera 37 moves down with frame 31, CCD camera 37 automatically adjusts its focus and detects the distance between CCD camera 37 and carton, thereby determining the distance between cutter 38 and carton, and then controlling the height of the first electric push rod 33 to advance frame 31. The external controller controls the movement of cutter 38 and aligns it with the corners of the carton, thus positioning cutter 38.

[0038] In one embodiment, such as Figure 3 As shown, the cutter 38 includes a threaded sleeve 383 threaded onto a bidirectional screw 35 and a sliding sleeve 384 slidably mounted onto a limiting rod 36. Both the threaded sleeve 383 and the sliding sleeve 384 are fixedly mounted on a protective shell 382. A cutting blade 385 is rotatably mounted at the center of the protective shell 382. A first motor 381 is provided on the side of the protective shell 382 away from the cutting blade 385, and the output end of the first motor 381 is fixedly connected to the center of the cutting blade 385. The cutter 38 has two sets, which are respectively mounted on two sets of threads on the bidirectional screw 35. The cutting blade 385 is made of high-speed steel. The first motor 381 drives the cutting blade 385 to rotate, cutting the carton. At the same time, the threaded sleeve 383 and the sliding sleeve 384 move and limit the position of the cutter 38, which can cut cartons of different sizes.

[0039] The above embodiment discloses a cutting device for carton production. When the second electric push rod 51 in the positioning component 5 extends or retracts, it pushes the moving plate 52 to slide along the guide rod 53. The two moving plates 52 move towards or away from the center at the same time to achieve precise positioning of the carton. At the same time, it is transported forward by the friction between the belt 553 and the side of the carton. The carton is positioned and transported at the same time. The CCD camera 37 detects the cutting position of the carton to prevent changes in the cutting position. The drive motor drives the bidirectional screw 35 to rotate, and the two sets of cutters 38 move synchronously. The limit rod 36 prevents the cutter 38 from rotating. At this time, the cutter 38 can cut cartons of different widths.

[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A trimming device for carton production, comprising a frame (1), wherein both sides of the frame (1) are provided with safety nets (2) for protecting workers, and a conveying roller (4) is rotatably mounted on the top of the frame (1) to facilitate the movement of the carton, characterized in that, The top of the frame (1) is provided with a cutting edge assembly (3) for cutting the carton, and the bottom of the frame (1) is provided with a positioning assembly (5) for limiting the carton. The edge-cutting assembly (3) includes a first electric push rod (33) fixedly installed on the side of the frame (1). The output end of the first electric push rod (33) is fixedly connected to a frame (31). The side of the frame (1) is also provided with two sets of slide rails (32). Both sides of the frame (31) are provided with sliders (34). The sliders (34) slide on the slide rails (32). A bidirectional screw (35) and a limiting rod (36) are provided through the frame (31). A drive motor is provided at one end of the bidirectional screw (35). Two sets of threads with opposite directions are provided on the bidirectional screw (35). A cutter (38) is passed through the bidirectional screw (35) and the limiting rod (36). A CCD camera (37) is also provided at the center of the frame (31).

2. A trimming device for a carton production according to claim 1, characterized in that The cutter (38) includes a threaded sleeve (383) threaded on a bidirectional screw (35) and a sliding sleeve (384) slidably mounted on a limiting rod (36). Both the threaded sleeve (383) and the sliding sleeve (384) are fixedly mounted on a protective shell (382). A cutting blade (385) is rotatably mounted at the center of the protective shell (382). A first motor (381) is provided on the side of the protective shell (382) away from the cutting blade (385), and the output end of the first motor (381) is fixedly connected to the center of the cutting blade (385).

3. The trimming device for a carton manufacturing apparatus according to claim 1, wherein The cutter (38) is provided in two sets, and is respectively installed on the two sets of threads of the bidirectional screw (35).

4. The trimming device for a carton manufacturing apparatus according to claim 1, wherein The positioning component (5) includes a second electric push rod (51) disposed at the bottom of the frame (1). The output end of the second electric push rod (51) is provided with a movable plate (52), and the end of the second electric push rod (51) away from the output end is also fixedly connected to the movable plate (52). The movable plate (52) is provided with a guide rod (53) through it, and the movable plate (52) moves along the guide rod (53). The top of the movable plate (52) is fixedly provided with a connector (54), and a conveying component (55) for conveying the carton is installed on the connector (54).

5. A trimming device for the production of cartons as claimed in claim 4, characterized in that The conveying assembly (55) includes a support frame (554) fixedly mounted on the top of the connector (54). A second motor (551) is fixedly mounted on the bottom of the support frame (554). A transmission roller (552) is fixedly mounted on the output end of the second motor (551). The transmission roller (552) is provided with a belt (553) groove, and there are two sets of transmission rollers (552). The two sets of transmission rollers (552) are mutually driven by belts (553).

6. The trimming device for a carton manufacturing apparatus according to claim 1, wherein The first electric push rod (33) is provided in two sets, and the two sets of first electric push rods (33) are respectively provided on the left and right sides of the frame (31).

7. A trimming device for a carton manufacturing machine according to claim 4, wherein The guide rods (53), the moving plates (52), the connecting pieces (54) and the conveying assemblies (55) are provided with two groups, and the two ends of the two groups of moving plates (52) are penetrated by the two groups of guide rods (53) respectively.

8. The edge-cutting device for cardboard box production according to claim 2, characterized in that, The cutting blade (385) is made of high-speed steel.