Modularized bale breaker tool bit quick-changing structure

By adopting a modular quick-change cutter head structure for unpacking machines and utilizing the linkage design of limit components and limit cams, the problem of cumbersome cutter head replacement caused by traditional bolt connections is solved, enabling quick replacement and stable installation of cutter heads and improving production efficiency.

CN224257160UActive Publication Date: 2026-05-19JINGMEN FANGLIN MASCH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGMEN FANGLIN MASCH CO LTD
Filing Date
2025-07-29
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The traditional bolted connection structure between the cutter head and the main body of the existing unpacking machine makes replacement cumbersome, affecting production continuity and efficiency.

Method used

The modular unpacking machine adopts a quick-change blade head structure. Through the cooperation of limit components, limit cams and arc-shaped slots, the blade head can be quickly limited and stably installed. The linkage design of the limit components shortens the replacement time.

Benefits of technology

It enables quick assembly and disassembly of the cutter head, improves the production efficiency of the unpacking equipment, and prevents the cutter head from loosening or shifting during operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224257160U_ABST
    Figure CN224257160U_ABST
Patent Text Reader

Abstract

The utility model discloses a modularized bale breaker tool bit quick-changing structure which comprises a bearing block, the outer surface of the bearing block is provided with a set of first movable grooves and a set of second movable grooves, the top of the bearing block is provided with a limiting assembly, a set of limiting cams are arranged in the first movable grooves, the top of the bearing block is fixedly provided with a vertical plate, and the top of the vertical plate is fixedly provided with a sliding block. A tool bit body is slidably connected to the inner wall of the bearing block, and a set of arc-shaped clamping grooves are formed in the outer surface of the tool bit body. According to the tool bit, the replacement time of the tool bit body can be shortened, so that the production efficiency of unpacking equipment can be improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of unpacking equipment technology, specifically a modular unpacking machine cutter head quick-change structure. Background Technology

[0002] In industrial production, logistics warehousing, food processing and other fields, unpacking equipment is one of the key pieces of equipment for realizing automated packaging processing. This type of equipment uses a mechanical structure to drive a blade to cut and slit various types of packaging, thereby quickly completing the unpacking process of materials. It is widely used in scenarios such as material feeding on production lines and sorting of goods in warehouses.

[0003] However, the cutter heads of existing unpacking machines are mostly connected to the main body of the equipment using traditional bolts or fixed structures. When replacing the cutter head, it is necessary to use tools such as wrenches to remove the bolts one by one, which is cumbersome and time-consuming. This makes it inconvenient to replace the cutter head, affects the continuity of production, and reduces production efficiency.

[0004] Therefore, a modular quick-change structure for unpacking machine blades is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a modular quick-change structure for unpacking machine blades.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular unpacking machine cutter head quick-change structure, including a support block, the outer surface of the support block having a set of movable groove one and a set of movable groove two, the top of the support block having a limiting component, the interior of the movable groove one having a set of limiting cams, the top of the support block having a vertical plate fixedly installed, the inner wall of the support block having a cutter head body slidably connected, and the outer surface of the cutter head body having a set of arc-shaped slots.

[0007] Preferably, in the above-mentioned modular unpacking machine cutter head quick-change structure, the limiting component includes a set of slide rods slidably connected to the inner wall of the upright plate, one end of the slide rod is fixedly connected to a pull plate, and the other end of the slide rod is fixedly connected to a toothed plate.

[0008] Preferably, in the above-mentioned modular unpacking machine cutter head quick-change structure, the outer surface of the slide rod is fitted with a spring, and the spring is located between the toothed plate and the upright plate.

[0009] Preferably, in the above-mentioned modular unpacking machine cutter head quick-change structure, the limiting component further includes two rotating shafts rotatably connected to the inner wall of the bearing block, and the rotating shafts are fixedly connected to the limiting cam, and a connecting piece is fixedly connected to the outer surface of each of the two rotating shafts.

[0010] Preferably, in the above-mentioned modular unpacking machine cutter head quick-change structure, a gear is fixedly connected to the top of each of the two rotating shafts, and the two gears mesh with each other, and the gear meshes with the toothed plate.

[0011] Preferably, in the above-mentioned modular unpacking machine cutter head quick-change structure, a torsion spring is fitted on the outer surface of each of the two rotating shafts. The torsion spring is located inside the second movable groove. One end of the torsion spring is fixedly connected to the bottom surface of the connecting piece, and the end of the torsion spring away from the connecting piece is fixedly connected to the inner wall of the second movable groove.

[0012] Preferably, in the above-mentioned modular unpacking machine cutter head quick-change structure, a pull ring is fixedly connected to the outer surface of the pull plate.

[0013] The beneficial effects of this utility model are as follows: By setting a limiting component, this utility model can achieve the purpose of quickly limiting the limiting cam. By setting the limiting cam and the arc-shaped groove, the cutter head body can be stably limited, avoiding loosening or displacement during operation. Through the cooperation between the limiting component, the limiting cam and the arc-shaped groove, the replacement time of the cutter head body can be shortened, thereby improving the production efficiency of the unpacking equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the limiting cam in the limiting state structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the limiting cam in the unlimited state of this utility model;

[0017] Figure 4 This is a schematic diagram of the limiting component of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Bearing block, 2. Movable groove one, 3. Limiting component, 301. Slide rod, 302. Pull plate, 303. Pull ring, 304. Spring, 305. Toothed plate, 306. Rotating shaft, 307. Gear, 308. Connecting piece, 309. Torsion spring, 4. Limiting cam, 5. Vertical plate, 6. Cutter head body, 7. Arc-shaped groove, 8. Movable groove two. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0021] like Figures 1-4As shown, a modular unpacking machine cutter head quick-change structure includes a support block 1. The inner wall of the support block 1 is slidably connected to the cutter head body 6, and the inner wall of the support block 1 is provided with a sliding track adapted to the cutter head body 6. The outer surface of the support block 1 is provided with a set of movable groove 1 2 and a set of movable groove 2 8. The position and size of movable groove 1 2 and movable groove 2 8 are designed according to the installation requirements of the limiting cam 4 and the torsion spring 309, respectively, to ensure that the components do not interfere with each other during movement.

[0022] The movable slot 2 is equipped with a set of limiting cams 4, and the outer surface of the cutter head body 6 is provided with a set of arc-shaped slots 7. The limiting cams 4 are stainless steel metal blocks with a raised arc on one side, which can engage with the arc-shaped slots 7 to achieve the limiting effect on the cutter head body 6.

[0023] A vertical plate 5 is fixedly installed on the top of the bearing block 1. The vertical plate 5 is made of stainless steel and can limit and guide the slide rod 301, thereby improving the stability of the insertion of the toothed plate 305 and the gear 307.

[0024] A limiting component 3 is provided on the top of the support block 1. The limiting component 3 includes a set of slide rods 301 slidably connected to the inner wall of the vertical plate 5. One end of each slide rod 301 is fixedly connected to a pull plate 302, which connects two slide rods 301 into a whole, ensuring that each slide rod 301 moves synchronously. A pull ring 303 is fixedly connected to the outer surface of the pull plate 302. The other end of each slide rod 301 is fixedly connected to a toothed plate 305, the tooth profile of which matches the gear 307, ensuring the stability and accuracy of their meshing.

[0025] A spring 304 is fitted onto the outer surface of the slide bar 301. One end of the spring 304 is fixedly connected to the outer surface of the toothed plate 305, and the other end of the spring 304 is fixedly connected to the outer surface of the upright plate 5. The spring 304 has a suitable elastic coefficient, which can provide a continuous preload to the pull plate 302 in its natural state, keeping the toothed plate 305 and the gear 307 tightly engaged and preventing the toothed plate 305 from disengaging from the gear 307 in the non-operating state. When the pull ring 303 is pulled, the spring 304 undergoes elastic deformation, and after being released, it can quickly drive all components to return to their original positions.

[0026] The limiting component 3 also includes two rotating shafts 306 rotatably connected to the inner wall of the support block 1, and the outer surface of the rotating shafts 306 is fixedly connected to the limiting cam 4. The two ends of the rotating shafts 306 are connected to the support block 1 through bearings to ensure the flexibility and stability of rotation. The connection between the rotating shafts 306 and the limiting cam 4 ensures that the two rotate synchronously, thereby limiting and unlocking the cutter head body 6.

[0027] A connecting piece 308 is fixedly connected to the outer surface of each of the two rotating shafts 306. The connecting piece 308 serves as a force transmission component between the torsion spring 309 and the rotating shaft 306, effectively transmitting the elastic force of the torsion spring 309 to the rotating shaft 306. A gear 307 is fixedly connected to the top of each of the two rotating shafts 306, and the two gears 307 mesh with each other, with the gears 307 meshing with the gear plate 305. The specifications of the two gears 307 are identical, ensuring that the two rotating shafts 306 rotate synchronously in opposite directions during meshing, thereby causing the limiting cams 4 on both sides to move in unison. The engagement between the gears 307 and the gear plate 305 can mechanically lock and restrict the rotation of the gears 307, thus fixing the position of the limiting cams 4.

[0028] A torsion spring 309 is fitted on the outer surface of each of the two rotating shafts 306, and the torsion spring 309 is located in the second movable groove 8. One end of the torsion spring 309 is fixedly connected to the bottom surface of the connecting piece 308, and the end of the torsion spring 309 away from the connecting piece 308 is fixedly connected to the inner wall of the second movable groove 8. The torsion spring 309 is in a pre-torsion state during installation, storing a certain amount of elastic potential energy. When the toothed plate 305 disengages from the gear 307, the torsion spring 309 releases its elastic potential energy, which drives the rotating shaft 306 to rotate through the connecting piece 308, causing the limiting cam 4 to automatically disengage from the arc-shaped slot 7. The elastic force is designed within a reasonable range, which can ensure that the limiting cam 4 can be smoothly reset without causing damage to the components due to excessive force.

[0029] Working principle: When the cutter head body 6 needs to be replaced, first pull the pull ring 303. At this time, the pull ring 303 will drive the pull plate 302, slide rod 301 and toothed plate 305 to move. During the movement, the spring 304 is compressed. At the same time, the toothed plate 305 will release the insertion limit between itself and the two gears 307. At this time, one of the torsion springs 309 in the stored torsion state will drive the connecting piece 308 to rotate clockwise. When the connecting piece 308 rotates, it will drive the gear 307, the rotating shaft 306 and the limiting cam 4 to rotate. At the same time, the other torsion spring 309 will drive the limiting cam 4 to rotate counterclockwise. The two gears 307 keep meshing and rotating, so that the protruding parts of the limiting cams 4 on both sides rotate out of the corresponding arc-shaped slots 7 at the same time, thereby releasing the limiting state of the cutter head body 6. At this time, the cutter head body 6 can be pulled down to be pulled out from the bearing block 1. When replacing the new cutter head body 6, the operation is reversed. Finally, rotating gear 307 drives another gear 307 to rotate, thereby causing the limiting cams 4 on both sides to re-screw into the new arc-shaped slots 7, achieving the limiting effect on the cutter head body 6. Finally, releasing the pulled ring 303 causes the stretched spring 304 to release its elastic potential energy, driving the pull plate 302, pull ring 303, slide rod 301, and toothed plate 305 to quickly move closer to gear 307, causing the toothed plate 305 to re-insert into gear 307 to fix the limiting cams 4, thus achieving the installation of the cutter head body 6. The entire process achieves the rapid disassembly and assembly of the cutter head body 6 through the linkage and cooperation of the various components in the limiting assembly 3.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 modular bale opener head quick-change structure, comprising a bearing block (1), characterized in that: The outer surface of the support block (1) is provided with a set of movable groove one (2) and a set of movable groove two (8). The top of the support block (1) is provided with a limiting component (3). The interior of the movable groove one (2) is provided with a set of limiting cams (4). The top of the support block (1) is fixedly installed with a vertical plate (5). The inner wall of the support block (1) is slidably connected with a cutter head body (6). The outer surface of the cutter head body (6) is provided with a set of arc-shaped slots (7).

2. The quick-change tool head structure of a modular bale opener according to claim 1, characterized in that: The limiting component (3) includes a set of slide rods (301) slidably connected to the inner wall of the upright plate (5). One end of the slide rod (301) is fixedly connected to a pull plate (302), and the other end of the slide rod (301) is fixedly connected to a toothed plate (305).

3. The quick-change tool head structure of a modular bale opener according to claim 2, characterized in that: A spring (304) is fitted on the outer surface of the slide bar (301), and the spring (304) is located between the toothed plate (305) and the upright plate (5).

4. The quick-change tool head structure of a modular bale opener according to claim 3, characterized in that: The limiting component (3) also includes two rotating shafts (306) rotatably connected to the inner wall of the bearing block (1), and the rotating shafts (306) are fixedly connected to the limiting cam (4), and a connecting piece (308) is fixedly connected to the outer surface of each of the two rotating shafts (306).

5. The quick-change tool head structure of a modular bale opener according to claim 4, characterized in that: A gear (307) is fixedly connected to the top of each of the two shafts (306), and the two gears (307) mesh with each other, and the gears (307) mesh with the toothed plate (305).

6. The quick-change tool head structure of a modular bale opener according to claim 5, characterized in that: A torsion spring (309) is fitted on the outer surface of each of the two rotating shafts (306). The torsion spring (309) is located inside the second movable groove (8). One end of the torsion spring (309) is fixedly connected to the bottom surface of the connecting piece (308), and the end of the torsion spring (309) away from the connecting piece (308) is fixedly connected to the inner wall of the second movable groove (8).

7. The quick-change tool head structure of a modular bale opener according to claim 2, characterized in that: A pull ring (303) is fixedly connected to the outer surface of the pull plate (302).