A plate trimming device
By designing a sheet metal cutting device with a main control arm and a secondary control arm structure, the problems of high cutting equipment cost and poor quality of manual cutting for small enterprises have been solved, achieving efficient and low-cost sheet metal cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUZHOU HUICHEN WOOD IND CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-26
AI Technical Summary
Existing automated equipment is costly and takes up a lot of space, making it difficult to apply in small businesses; manual cutting lacks specialized tools, making it difficult to guarantee cutting quality.
Design a sheet metal edge cutting device, which adopts a main control measuring arm and a secondary control measuring arm structure, is equipped with scale lines and flexible cutting blades, and combines a sliding component and a limiting baffle to achieve precise cutting.
The device has a simple structure and low cost, making it suitable for small businesses. It improves cutting accuracy and efficiency, reduces resource waste, and ensures cutting quality.
Smart Images

Figure CN224407901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wood board production and processing technology, specifically to a wood board edge cutting device. Background Technology
[0002] In the field of veneer processing, veneer cutting is one of the important processes. Currently, veneer cutting is mainly carried out by two methods: automated equipment cutting and manual cutting.
[0003] While automated equipment for PCB cutting has become a mainstream trend, it suffers from significant drawbacks. These machines are bulky and require substantial installation and operating space, making it difficult for small businesses with limited space to accommodate them, thus restricting their application. Furthermore, the high cost of this equipment, including significant initial investment and substantial ongoing maintenance, upkeep, and upgrades, presents a considerable expense for small businesses with limited financial resources. Even for simple PCB cutting tasks, using such automated equipment leads to resource waste and unnecessary cost increases.
[0004] The manual cutting of veneers remains a relatively primitive method. Operators lack specialized cutting tools and corresponding auxiliary equipment. They typically have to use whatever materials are available, measuring and positioning the veneers before cutting with a blade. This method is not only extremely inconvenient and inefficient, but also, due to the lack of precise positioning and assistance from professional tools, it's difficult to ensure the standardization of veneer cutting. Consequently, the cut veneers often fail to meet high quality standards in terms of dimensional accuracy and shape regularity, affecting subsequent processing and use.
[0005] Existing veneer cutting technology has many shortcomings and cannot meet the actual needs of small businesses or simple veneer cutting work. Therefore, there is an urgent need for a new veneer cutting technology or equipment to solve the above problems. Utility Model Content
[0006] This utility model provides a sheet metal edge cutting device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A sheet metal trimming device includes a main control arm and a secondary control arm, both of which are U-shaped and are connected to each other. The bottoms of the main and secondary control arms can slide on a flat plate. A cutting knife is provided on the secondary control arm, and a through hole is opened at the top of one end of the secondary control arm, in which the cutting knife is slidably installed.
[0009] Preferably, one end of the secondary control arm is slidably mounted on the primary control arm, and both the primary and secondary control arms are provided with scale lines at their tops.
[0010] Preferably, the cutting knife is elastically mounted in the through hole, and a secondary handle is connected to the top of the cutting knife. The secondary handle is a long rod-shaped structure, and the top of the cutting knife is mounted in the middle of the secondary handle.
[0011] Preferably, two slots are formed at the top of one end of the secondary control arm, and dampers are symmetrically installed in each of the two slots. The cutting knife is located in the middle of the two dampers, and the tops of the two dampers are connected to the secondary handle frame.
[0012] Preferably, a main handle frame is provided at the top of one end of the main control arm, the main handle frame is configured as a U-shaped structure, and the main handle frame is inverted.
[0013] Preferably, a limit baffle is provided at the bottom of one end of the main control arm. The limit baffle is a square plate structure and is located below the main handle frame.
[0014] Preferably, both the main control arm and the auxiliary control arm are provided with sliding components at their bottoms. The sliding components are configured as spherical balls of the main control arm and spherical balls of the auxiliary control arm, and the spherical balls of the main control arm and the auxiliary control arm are installed in a rolling manner.
[0015] Preferably, the bottom of the main control arm is provided with four main control arm spherical balls, with two balls symmetrically arranged at each end of the bottom. The bottom of the secondary control arm is provided with two secondary control arm spherical balls, and the two secondary control arm spherical balls are respectively located below the two dampers.
[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows:
[0017] 1. The sheet metal cutting device described in this utility model has a main control arm and a secondary control arm that are spliced together and can slide. The cutting knife on the secondary control arm is slidably installed in the through hole. It has a simple structure, small size, and does not require a large installation space, making it suitable for small businesses. It has low manufacturing cost, which can reduce the capital investment of small businesses and avoid resource waste and unnecessary cost increases.
[0018] 2. The sheet metal cutting device described in this utility model is equipped with a main control measuring arm and a secondary control measuring arm, both of which have scale lines. The secondary control measuring arm can slide on the main control measuring arm to adjust its length, which facilitates accurate measurement and adjustment of the cutting width. This solves the problem of poor cutting quality caused by the lack of special tools in manual cutting and improves the dimensional accuracy and shape regularity of single sheet metal cutting.
[0019] 3. The sheet metal edge-cutting device described in this utility model features a flexibly mounted cutting blade, which, along with a secondary handle and damper, makes operation convenient. Cutting is achieved by pressing down, and the blade automatically returns to its original position upon release, improving cutting efficiency. The main and secondary handles facilitate handheld operation, and the inverted main handle further reduces effort, making operation easier. Furthermore, the limiting baffle at the bottom of the main control arm limits the edge of the sheet metal at the end that does not require cutting, ensuring a smooth edge during sliding and improving the neatness of the cut at the other end, thus further enhancing the cutting quality. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of a sheet metal edge-cutting device according to the present invention. Figure 1 ;
[0021] Figure 2 This is a three-dimensional structural diagram of a sheet metal edge-cutting device according to the present invention. Figure 2 ;
[0022] Figure 3 This is a front view structural diagram of a sheet metal edge cutting device according to the present invention.
[0023] In the diagram: 1. Main control arm; 2. Secondary control arm; 3. Cutting knife; 4. Through hole; 5. Scale line; 6. Secondary handle support; 7. Groove; 8. Damper; 9. Main handle support; 10. Limiting baffle; 11. Main arm ball bearing; 12. Secondary arm ball bearing. Detailed Implementation
[0024] 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.
[0025] like Figures 1 to 3As shown, the sheet metal cutting device provided by this utility model is equipped with a main control measuring arm 1 and a secondary control measuring arm 2. Both the main control measuring arm 1 and the secondary control measuring arm 2 are U-shaped structures, and they are spliced together to form the support structure of the entire measuring tool. The bottoms of the main control measuring arm 1 and the secondary control measuring arm 2 can slide on a flat plate structure, which refers to any structure with a plane or plate surface, such as a table, countertop, or ground. Due to its sliding function, this device facilitates the cutting of single sheets. A cutting knife 3 is mounted on the secondary control measuring arm 2, and a through hole 4 is opened at the top of one end of the secondary control measuring arm 2. The cutting knife 3 is slidably installed in the through hole 4, that is, the cutting knife 3 can extend and retract within the through hole 4.
[0026] One end of the auxiliary control measuring arm 2 is slidably mounted on the main control measuring arm 1 to achieve a telescopic function, adjusting the length of the measuring arm to facilitate cutting and adjusting the single board. Both the main control measuring arm 1 and the auxiliary control measuring arm 2 are equipped with scale lines 5 at their tops for measuring the cutting width.
[0027] The cutting blade 3 is elastically mounted in the through hole 4, and its top is connected to the auxiliary handle bracket 6. The auxiliary handle bracket 6 is a long rod-shaped structure, and the top of the cutting blade 3 is mounted in the middle of the auxiliary handle bracket 6. In use, the cutting blade 3 is pressed by holding the auxiliary handle bracket 6 to perform the cutting operation. After cutting is completed, the cutting blade 3 returns to its original shape due to its elasticity.
[0028] Specifically, two slots 7 are formed at the top of one end of the secondary control arm 2, and dampers 8 are symmetrically installed in these two slots 7. The dampers 8 provide an elastic effect for the cutting blade 3. The cutting blade 3 is located in the middle of the two dampers 8, facilitating force balance. The tops of the two dampers 8 are connected to the secondary handle bracket 6. In use, pressing the secondary handle bracket 6 compresses the dampers 8 simultaneously; releasing the handle restores the dampers 8's function, causing the cutting blade 3 to move upwards through the through hole 4, returning to its initial state.
[0029] The main control arm 1 has a main handle frame 9 at one end. The main handle frame 9 has a U-shaped structure and is installed in an inverted position. The main control arm 1 improves the convenience of handheld operation, and the inverted installation achieves a labor-saving effect. The auxiliary control arm 2 is the same. In use, the main control arm 1 and the auxiliary control arm 2 are held with both hands respectively, and the sliding operation and cutting operation are performed simultaneously.
[0030] A square plate-shaped limiting baffle 10 is provided at the bottom of one end of the main control arm 1, and the limiting baffle 10 is located below the main handle frame 9. The limiting baffle 10 is used to limit and adjust the end of the single board that does not need to be cut, so as to ensure that the edge of the single board at this end remains flat during the sliding of the main control arm 1, thereby improving the cutting neatness of the other end.
[0031] Specifically, the sliding effect of the main control arm 1 and the auxiliary control arm 2 is achieved through a sliding assembly at their bottom. The sliding assembly consists of a main control arm ball bearing 11 and an auxiliary control arm ball bearing 12, which are installed in a rolling manner, enabling 360° rotation. To improve operational stability, the sliding assembly can also use directional rollers, which do not rotate, thereby reducing sliding deviation and improving the levelness of the sliding.
[0032] In the specific configuration, the bottom of the main control arm 1 is provided with four main control arm spherical balls 11, with two symmetrically arranged at each end of the bottom to ensure uniformity and improve stability during gliding. The bottom of the auxiliary control arm 2 is provided with two auxiliary control arm spherical balls 12, which are located below the two dampers 8 respectively.
[0033] Working principle: When using this sheet metal cutting device, first place the sheet metal on the flat structure, and then use the limiting baffle 10 at the bottom of the main control arm 1 to block the end of the sheet metal that does not need to be cut, thus limiting the cutting position. According to the required cutting width, the cutting position is precisely adjusted by sliding the secondary control arm 2 on the main control arm 1 and combining the scale lines 5 at the top of the main control arm 1 and the secondary control arm 2.
[0034] The operator holds the main handle 9 and the auxiliary handle 6 with both hands, pushing the entire device to slide on the flat structure to the appropriate cutting starting position. Then, pressing the auxiliary handle 6 causes the cutting blade 3 to move downwards within the through hole 4, cutting the veneer. At this time, the damper 8 is compressed. After cutting, releasing the auxiliary handle 6 allows the damper 8 to return to its original state, causing the cutting blade 3 to move upwards back to its initial position. Throughout the cutting process, the bottom sliding components (main measuring arm ball bearing 11 and auxiliary measuring arm ball bearing 12 or directional rollers) ensure smooth sliding of the device, guaranteeing the neatness and accuracy of the cut.
[0035] In summary, the board cutting device provided by this utility model has a simple structure, small size, low cost, convenient and efficient operation, and can accurately cut veneers. It effectively solves the problems existing in the current veneer cutting technology and meets the needs of small enterprises or simple veneer cutting work.
[0036] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A sheet metal edge-cutting device, characterized in that, The system is equipped with a main control arm (1) and a secondary control arm (2), both of which are U-shaped structures. The main control arm (1) and the secondary control arm (2) are spliced together. The bottoms of the main control arm (1) and the secondary control arm (2) can slide on a flat plate structure. A cutting knife (3) is provided on the secondary control arm (2). A through hole (4) is opened at the top of one end of the secondary control arm, and the cutting knife (3) is slidably installed in the through hole (4).
2. The sheet metal edge-cutting device according to claim 1, characterized in that, One end of the secondary control arm (2) is slidably mounted on the main control arm (1), and scale lines (5) are provided on the top of both the main control arm (1) and the secondary control arm (2).
3. The sheet metal edge-cutting device according to claim 1, characterized in that, The cutting knife (3) is elastically installed in the through hole (4). The top of the cutting knife (3) is connected to a secondary handle frame (6). The secondary handle frame (6) is a long rod-shaped structure. The top of the cutting knife (3) is installed in the middle of the secondary handle frame (6).
4. The sheet metal edge-cutting device according to claim 3, characterized in that, Two slots (7) are opened at the top of one end of the auxiliary control arm (2). Dampers (8) are installed symmetrically in the two slots (7). The cutting knife (3) is located in the middle of the two dampers (8). The top of the two dampers (8) is connected to the auxiliary handle frame (6).
5. A sheet metal edge-cutting device according to claim 1, characterized in that, The main control arm (1) has a main handle frame (9) at one end. The main handle frame (9) is U-shaped and is inverted.
6. The sheet metal edge-cutting device according to claim 5, characterized in that, A limit baffle (10) is provided at the bottom of one end of the main control arm (1). The limit baffle (10) is a square plate structure and is located below the main handle frame (9).
7. The sheet metal edge-cutting device according to claim 1, characterized in that, The bottom of both the main control arm (1) and the auxiliary control arm (2) is provided with a sliding assembly. The sliding assembly is configured as a main control arm ball bearing (11) and an auxiliary control arm ball bearing (12). The main control arm ball bearing (11) and the auxiliary control arm ball bearing (12) are installed in a rolling manner.
8. A sheet metal edge-cutting device according to claim 7, characterized in that, The bottom of the main control arm (1) is provided with four main control arm ball bearings (11), with two ball bearings symmetrically arranged at each end of the bottom. The bottom of the secondary control arm (2) is provided with two secondary control arm ball bearings (12), and the two secondary control arm ball bearings (12) are located below the two dampers (8).