A fixed-length cutting equipment for carton production and processing

By using a mechanical contact distance monitoring and positioning mechanism, the accuracy and efficiency problems of traditional cardboard box cutting equipment have been solved, achieving precise cutting and cost control.

CN224545451UActive Publication Date: 2026-07-24HANSHAN COUNTY MINGXUAN PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANSHAN COUNTY MINGXUAN PACKAGING CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional cardboard box cutting equipment requires manual measurement and marking of the length, resulting in low cutting accuracy and low efficiency. Existing technologies that use photoelectric sensors for distance measurement are costly and easily affected by the reflection of the cardboard surface, thus affecting accuracy.

Method used

A mechanical contact distance monitoring mechanism is adopted, which triggers cutting by using a squeezing rod and a pressure sensor, stabilizes the signal by spring buffer and damping plate, and achieves width adaptive positioning by using an electric telescopic rod of the positioning mechanism.

Benefits of technology

It enables precise control of cutting timing, improves cutting accuracy and efficiency, reduces equipment costs, and avoids the high cost and reflective effects of photoelectric sensors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of fixed-length cutting equipment for carton production and processing belongs to carton production cutting field, further include: the slot is set in the front and rear side wall of workbench, further include: positioning mechanism: positioning mechanism is set in two groups of slot, positioning mechanism can be positioned with different width paperboard;Distance monitoring mechanism: distance monitoring mechanism is set on workbench, distance monitoring mechanism can monitor the cutting length of paperboard, when reaching set length, automatic trigger liftable cutting mechanism completes accurate cutting, the utility model is triggered by setting distance monitoring mechanism, this monitoring mechanism is mechanical contact type trigger design, utilizes the cooperation of extruding lever and pressure sensor to trigger cutting, when pressure sensor reaches set value, trigger liftable cutting mechanism to cut, cooperate spring buffer to avoid false triggering, accurate control cutting opportunity, while damping sheet can eliminate spring rebound vibration, improve signal stability.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box production and cutting, and more specifically, to a fixed-length cutting device for cardboard box production and processing. Background Technology

[0002] The production of cardboard boxes requires multiple processes, including the cutting process, which necessitates the use of cutting equipment.

[0003] Traditional cardboard box cutting equipment requires manual measurement and marking of the length, resulting in low cutting accuracy and low efficiency. Existing technologies utilize photoelectric sensors for distance measurement, but these are costly and easily affected by the reflectivity of the cardboard surface, thus impacting trigger accuracy. How to invent a fixed-length cutting device for cardboard box production and processing to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fixed-length cutting device for carton production and processing, which aims to improve the traditional carton cutting equipment that requires manual measurement and marking of length, resulting in low cutting accuracy and low efficiency. In the prior art, photoelectric sensors are used for distance measurement, but this is costly and easily affected by the reflection of the cardboard surface, which affects the triggering accuracy.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a fixed-length cutting device for cardboard box production and processing, including a workbench and an opening on the workbench. The opening contains a liftable cutting mechanism. The device also includes: slots on both the front and rear side walls of the workbench; a positioning mechanism located within the two slots, capable of positioning cardboard of different widths; and a distance monitoring mechanism located on the workbench, capable of monitoring the cutting length of the cardboard and automatically triggering the liftable cutting mechanism to complete precise cutting when the set length is reached.

[0007] Preferably, the positioning mechanism includes two sets of sliding frames slidably connected in the slots, positioning rollers rotatably connected to the inner walls of the two sets of sliding frames, connecting rods on the side walls of the two sets of sliding frames away from each other, a fixing block at the bottom of the worktable, second electric telescopic rods on both side walls of the fixing block, a sliding plate at one end of each of the two sets of second electric telescopic rods, and one end of each of the two sets of connecting rods connected to the side wall of the sliding plate.

[0008] Preferably, both sets of sliding plates have mounting rods that can be movably inserted through their sidewalls, and both ends of the mounting rods are connected to the bottom of the workbench.

[0009] Preferably, the distance monitoring mechanism includes a movable plate slidably connected to the top of the workbench, a monitoring plate slidably connected to the top of the workbench, two sets of sliding rods on the sidewalls of the two sets of monitoring plates, one end of each sliding rod movably passing through the sidewall of the movable plate and extending to the outside, and a spring sleeved on the outer wall of each set of sliding rods, one end of the spring being connected to the sidewall of the movable plate, and the other end of the spring being connected to the sidewall of the monitoring plate. A mounting frame is provided at the bottom of the workbench, and a first electric telescopic rod is provided on the sidewall of the mounting frame, one end of the first electric telescopic rod being connected to the sidewall of the movable plate. A pressure sensor is provided on the sidewall of the movable plate, and a compression rod is provided on the sidewall of the monitoring plate.

[0010] Preferably, the monitoring plate sidewall is provided with two sets of damping plates, and the sidewalls of the two sets of damping plates are connected to the sidewall of the moving plate.

[0011] Preferably, the top of the workbench is provided with a guide groove, and the bottom of the movable plate is provided with a guide block that matches the guide groove.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model sets up a distance monitoring mechanism, which is a mechanical contact trigger design. It uses the cooperation of the extrusion rod and the pressure sensor to trigger the cutting. When the pressure sensor reaches the set value, it triggers the liftable cutting mechanism to cut. With the help of spring buffer, it avoids false triggering and accurately controls the cutting timing. At the same time, the damping plate can eliminate the spring rebound vibration and improve the signal stability.

[0014] 2. This utility model achieves width adaptive positioning by setting a positioning mechanism, in which the positioning rollers driven independently on both sides synchronously retract / expand via an electric telescopic rod. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the distance monitoring mechanism of this utility model.

[0019] In the diagram: 1. Workbench; 2. Distance monitoring mechanism; 200. Mounting frame; 201. First electric telescopic rod; 202. Moving plate; 203. Pressure sensor; 204. Extrusion rod; 205. Damping plate; 206. Monitoring plate; 207. Slide rod; 208. Spring; 3. Liftable cutting mechanism; 4. Opening; 5. Positioning mechanism; 500. Fixing block; 501. Second electric telescopic rod; 502. Mounting rod; 503. Sliding plate; 504. Connecting rod; 505. Sliding frame; 506. Positioning roller; 6. Grooving. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example, refer to Figures 1-3 A fixed-length cutting device for cardboard box production and processing includes a workbench 1 and an opening 4 on the workbench 1. The opening 4 is equipped with a liftable cutting mechanism 3. The device also includes: slots 6 on both the front and rear side walls of the workbench 1; a positioning mechanism 5 located in the two slots 6; the positioning mechanism 5 can position cardboard of different widths; and a distance monitoring mechanism 2 located on the workbench 1. The distance monitoring mechanism 2 can monitor the cutting length of the cardboard and automatically trigger the liftable cutting mechanism 3 to complete the precise cutting when the set length is reached.

[0022] The positioning mechanism 5 includes two sets of sliding frames 505 slidably connected within the slots 6. Positioning rollers 506 are rotatably connected to the inner walls of the two sets of sliding frames 505. Connecting rods 504 are provided on the side walls of the two sets of sliding frames 505 away from each other. A fixing block 500 is provided at the bottom of the worktable 1. A second electric telescopic rod 501 is provided on both side walls of the fixing block 500. A sliding plate 503 is provided at one end of each of the two sets of second electric telescopic rods 501. An installation rod 502 is movably passed through the side wall of each of the two sets of sliding plates 503. Both ends of the installation rod 502 are connected to the bottom of the worktable 1. With the cooperation of the installation rod 502, the movement of the sliding plate 503 is more stable. One end of each of the two sets of connecting rods 504 is connected to the side wall of the sliding plate 503.

[0023] It should be noted that: the second electric telescopic rod 501 pushes the sliding plate 503 to slide along the mounting rod 502, the connecting rod 504 drives the sliding frame 505 to move within the slot 6, and the two sets of positioning rollers 506 can position the two sides of the cardboard.

[0024] The distance monitoring mechanism 2 includes a movable plate 202 slidably connected to the top of the workbench 1. A guide groove is provided on the top of the workbench 1, and a guide block matching the guide groove is provided at the bottom of the movable plate 202. Under the action of the guide groove and guide block, the movable plate 202 moves more stably on the workbench 1. A monitoring plate 206 is slidably connected to the top of the workbench 1. Two sets of sliding rods 207 are provided on the side walls of the two sets of monitoring plates 206. One end of each set of sliding rods 207 movably passes through the side wall of the movable plate 202 and extends outwards. The workbench 1 has two sets of sliding rods 207, each with a spring 208 sleeved on its outer wall. One end of the spring 208 is connected to the side wall of the moving plate 202, and the other end of the spring 208 is connected to the side wall of the monitoring plate 206. The bottom of the workbench 1 is provided with a mounting bracket 200. The side wall of the mounting bracket 200 is provided with a first electric telescopic rod 201. One end of the first electric telescopic rod 201 is connected to the side wall of the moving plate 202. The side wall of the moving plate 202 is provided with a pressure sensor 203, and the side wall of the monitoring plate 206 is provided with a pressing rod 204.

[0025] It should be noted that: the first electric telescopic rod 201 pushes the moving plate 202 to a preset initial position corresponding to the cutting length, the cardboard conveyor pushes the monitoring plate 206, the monitoring plate 206 compresses the spring 208 and drives the extrusion rod 204 to move, the extrusion rod 204 extrudes the pressure sensor 203, when the pressure sensor 203 reaches the set value, the pressure sensor 203 transmits the signal to the external controller (this is the prior art), the external controller is electrically connected to the pressure sensor 203 and the liftable cutting mechanism 3, and the external controller controls the liftable cutting mechanism 3 to cut the cardboard.

[0026] The monitoring plate 206 has two sets of damping plates 205 on its side wall, and the side walls of the two sets of damping plates 205 are connected to the side wall of the moving plate 202.

[0027] It should be noted that the damping plate 205 can eliminate the rebound vibration of the spring 208, thereby eliminating vibration interference and improving signal stability.

[0028] Working principle: The first electric telescopic rod 201 is activated, pushing the moving plate 202 to slide along the guide groove to the target position. The two sets of second electric telescopic rods 501 retract, driving the sliding frame 505 to drive the positioning rollers 506 to position the two sides of the cardboard. The cardboard is fed along the worktable 1, and the two sides are guided by the positioning rollers 506 to prevent deviation. The front end of the cardboard contacts the monitoring plate 206. The monitoring plate 206 pushes the extrusion rod 204 to slide towards the moving plate 202. The spring 208 is compressed and stores energy. When the pressure sensor 203 detects that the cardboard has reached the preset threshold, it indicates that the cardboard is in place and sends a signal to the external controller. The external controller can then control the lifting and lowering cutting mechanism 3 to complete the cutting. The cutting mechanism rises, and the cardboard continues to be conveyed. Under the action of the spring 208, the monitoring plate 206 is pushed to reset, and the damping plate 205 suppresses the rebound oscillation.

[0029] It should be noted that the specific model and specifications need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixed-length cutting device for cardboard box production and processing, comprising a workbench (1) and an opening (4) provided on the workbench (1), wherein a liftable cutting mechanism (3) is provided in the opening (4), characterized in that, Also includes: The workbench (1) has slots (6) on both its front and rear side walls, and also includes: Positioning mechanism (5): The positioning mechanism (5) is set in two sets of slots (6), and the positioning mechanism (5) can be positioned with cardboard of different widths; Distance monitoring mechanism (2): The distance monitoring mechanism (2) is set on the workbench (1). The distance monitoring mechanism (2) can monitor the cutting length of the cardboard. When the set length is reached, the lifting cutting mechanism (3) is automatically triggered to complete the precise cutting.

2. The fixed-length cutting equipment for cardboard box production and processing according to claim 1, characterized in that, The positioning mechanism (5) includes two sets of sliding frames (505) slidably connected in the slots (6). The inner walls of the two sets of sliding frames (505) are rotatably connected with positioning rollers (506). The two sets of sliding frames (505) are provided with connecting rods (504) on the side walls away from each other. The bottom of the workbench (1) is provided with a fixed block (500). The two side walls of the fixed block (500) are provided with second electric telescopic rods (501). One end of each of the two sets of second electric telescopic rods (501) is provided with a sliding plate (503). One end of each of the two sets of connecting rods (504) is connected to the side wall of the sliding plate (503).

3. The fixed-length cutting equipment for cardboard box production and processing according to claim 2, characterized in that, Both sets of sliding plates (503) have mounting rods (502) that can be movably passed through their side walls, and both ends of the mounting rods (502) are connected to the bottom of the workbench (1).

4. The fixed-length cutting equipment for cardboard box production and processing according to claim 1, characterized in that, The distance monitoring mechanism (2) includes a movable plate (202) slidably connected to the top of a workbench (1), a monitoring plate (206) slidably connected to the top of the workbench (1), two sets of sliding rods (207) on the side walls of the two sets of monitoring plates (206), one end of each set of sliding rods (207) movably passing through the side wall of the movable plate (202) and extending to the outside, and a spring (208) sleeved on the outer wall of each set of sliding rods (207), one end of each spring (208) being connected to the movable plate (202). 202) The side wall is connected, and the other end of the spring (208) is connected to the side wall of the monitoring plate (206). The bottom of the workbench (1) is provided with a mounting bracket (200). The side wall of the mounting bracket (200) is provided with a first electric telescopic rod (201). One end of the first electric telescopic rod (201) is connected to the side wall of the moving plate (202). The side wall of the moving plate (202) is provided with a pressure sensor (203). The side wall of the monitoring plate (206) is provided with a squeezing rod (204).

5. The fixed-length cutting equipment for cardboard box production and processing according to claim 4, characterized in that, The monitoring plate (206) has two sets of damping plates (205) on its side wall, and the side walls of the two sets of damping plates (205) are connected to the side wall of the moving plate (202).

6. The fixed-length cutting equipment for cardboard box production and processing according to claim 4, characterized in that, The workbench (1) has a guide groove on its top, and the movable plate (202) has a guide block at its bottom that matches the guide groove.