Novel primary-secondary saw with efficient and stable cutting performance
By designing guide blocks and a rotation angle adjustment device, the problem of workpiece offset in the mother-daughter saw was solved, achieving efficient and stable cutting performance and improving the processing quality and precision of the workpiece.
Patent Information
- Application Number
- CN202520257638.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing mother-daughter saws are prone to shifting during workpiece movement, resulting in unstable cutting quality.
By employing guide blocks and a rotation angle adjustment device, the moving block and guide block are moved by a threaded rod. Combined with an L-shaped fixed frame and a rotating roller, stable positioning of the workpiece and multi-angle cutting are achieved.
It improves the stability and processing quality of workpiece cutting, ensures that the workpiece is not easily deviated during the cutting process in different directions, and improves the efficiency and accuracy of cutting.
Smart Images

Figure CN223735085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mother-daughter saw technology, specifically a novel mother-daughter saw with efficient and stable cutting performance. Background Technology
[0002] With the development of the times and the advancement of technology, users' demand for processing of wood-based composite boards has also increased. In recent years, a type of saw has emerged that effectively solves the problem of edge chipping when cutting wood-based composite boards using ordinary saws.
[0003] A search revealed a Chinese patent publication number: CN220331466U, which discloses a mother-daughter saw comprising a worktable, a first saw blade, a second saw blade, a truss assembly, a daughter saw motor, and a mother saw motor, used for cutting wood composite boards. The truss assembly includes a truss body and a movable hinge shaft for connecting the daughter saw motor and the mother saw motor. By designing the motor shaft and saw blade pad of the connecting component as an integral part, the accuracy of the mother and daughter saw blades on the same plane when cutting wood composite boards can be increased, ensuring that the saw blades do not wobble.
[0004] Although the aforementioned patent can ensure that the saw blade does not wobble, the aforementioned device still has the following problems: During the use of the device, the workpiece needs to be placed on top of the equipment for movement and cutting. However, since the device does not limit the movement direction of the workpiece, the workpiece is prone to deviation when it needs to be cut in different directions, which makes it impossible to guarantee the processing quality of the workpiece. In view of the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content
[0005] The purpose of this invention is to provide a novel mother-daughter saw with efficient and stable cutting performance to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel mother-daughter saw with efficient and stable cutting performance, comprising a device body, a protective frame fixedly connected to the outer surface of the device body, an adjustment groove provided on the upper surface inside the protective frame, a moving block slidably connected inside the adjustment groove, a moving frame fixedly connected to the bottom of the moving block, a guide block provided at the bottom of the moving frame, a C-shaped guide frame fixedly connected to one side of the guide block, the C-shaped guide frame consisting of two horizontal plates and one vertical plate, and a rotation angle adjustment device provided on the guide block.
[0007] Preferably, the inside of the C-shaped guide frame is rotatably connected to a rotating roller.
[0008] Preferably, the adjusting groove is rotatably connected to a threaded rod extending to the outside of the protective frame, and the surface of the threaded rod is threadedly connected to the inside of the moving block.
[0009] Preferably, the rotation angle adjustment device includes a rotating shaft, the surface of which is rotatably connected to the interior of the guide block, the interior of which is provided with a rotating groove, the bottom end of which rotatably passes through the interior of the guide block and extends into the interior of the rotating groove, the bottom of which is provided with a fixing groove, the interior of which is provided with a power groove extending to the outside of the guide block, and the interior of which is slidably connected with an L-shaped fixing frame extending to the outside of the guide block.
[0010] Preferably, the interior of the power groove is connected to the interior of the rotation groove.
[0011] Preferably, the top end of the rotating shaft is fixedly connected to the bottom of the movable frame.
[0012] Preferably, the side of the L-shaped fixing bracket closest to the fixing groove is inserted into the inside of the fixing groove.
[0013] Preferably, a spring is fixedly connected to the bottom of the L-shaped fixing frame, and the bottom end of the spring is fixedly connected to the inner wall of the power groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This new type of mother-daughter saw with high efficiency and stable cutting performance makes it easier to adjust the angle of the guide block by fixing and releasing the rotating shaft, and allows the guide block to rotate to multiple positions. This enables the device to guide and cut the workpiece from multiple angles, making the processing of the workpiece more convenient and allowing the operator to use the device more easily.
[0016] 2. This new type of mother-daughter saw with high efficiency and stable cutting performance allows the moving block to move the guide block through the moving frame, thereby adjusting the position of the guide block and making it easier for the operator to adjust the guide block. This enables the guide block to position and guide the workpiece more stably and efficiently, and the rotation of the rotating rollers allows the workpiece to move and cut more smoothly and stably, thus ensuring the processing quality of the workpiece. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a novel mother-daughter saw with efficient and stable cutting performance according to this utility model;
[0018] Figure 2 This is a schematic diagram of the threaded rod of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the C-shaped guide frame of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the guide block of this utility model;
[0021] Figure 5 This utility model Figure 4 A magnified structural diagram of A in the middle.
[0022] In the diagram: 1. Equipment body; 2. Protective frame; 3. Adjustment groove; 4. Threaded rod; 5. Moving block; 6. Moving frame; 7. Guide block; 8. C-shaped guide frame; 9. Rotating roller; 10. Rotating groove; 11. Fixed groove; 12. L-shaped fixed frame; 13. Power groove; 14. Spring; 15. Rotating shaft. Detailed Implementation
[0023] Please see Figure 1-5 This utility model provides a technical solution: a novel mother-daughter saw with efficient and stable cutting performance, including a device body 1. The device body 1 is an existing structure and will not be described in detail here. The device body 1 is equipped with a mother-daughter saw for cutting workpieces. A protective frame 2 is fixedly connected to the outer surface of the device body 1. The protective frame 2 can cover the top of the device body 1 and reduce the occurrence of waste splashing into the external environment when the device body 1 is cutting the workpiece. An adjustment groove 3 is opened on the upper surface inside the protective frame 2. A moving block 5 is slidably connected inside the adjustment groove 3. A moving frame 6 is fixedly connected to the bottom of the moving block 5. A guide block 7 is provided at the bottom of the moving frame 6. A C-shaped guide frame 8 is fixedly connected to one side of the guide block 7. The C-shaped guide frame 8 consists of two horizontal plates and one vertical plate. A rotating roller 9 is rotatably connected inside the C-shaped guide frame 8. There are multiple rotating rollers 9, which are equidistantly arranged inside the C-shaped guide frame 8. The rotation of the rotating rollers 9 can make the workpiece move and cut more smoothly and stably. A rotation angle adjustment device is provided on the guide block 7.
[0024] The adjusting groove 3 has a rotating internal connection to a threaded rod 4 extending to the outside of the protective frame 2. The surface of the threaded rod 4 is connected to the internal thread of the moving block 5. When the operator rotates the threaded rod 4, the threaded rod 4 drives the moving block 5 to move under the restriction of the adjusting groove 3. The moving block 5 then drives the guide block 7 to move through the moving frame 6, thereby adjusting the position of the guide block 7. This allows the operator to adjust the guide block 7 more conveniently, enabling the guide block 7 to more stably and efficiently position and guide the workpiece, thus ensuring the processing quality of the workpiece.
[0025] The rotation angle adjustment device includes a rotating shaft 15, the surface of which is rotatably connected to the interior of the guide block 7. The top end of the rotating shaft 15 is fixedly connected to the bottom of the movable frame 6. A rotating groove 10 is formed inside the guide block 7. The bottom end of the rotating shaft 15 rotatably passes through the interior of the guide block 7 and extends into the interior of the rotating groove 10. A fixing groove 11 is formed at the bottom of the rotating shaft 15. The fixing grooves 11 are arranged in a circular array at equal intervals on the rotating shaft 15. A power groove extending to the outside of the guide block 7 is formed inside the guide block 7. 13. The interior of the power groove 13 is connected to the interior of the rotating groove 10. An L-shaped fixing bracket 12 extending to the outside of the guide block 7 is slidably connected inside the power groove 13. The side of the L-shaped fixing bracket 12 near the fixing groove 11 is inserted into the interior of the fixing groove 11. The L-shaped fixing bracket 12 can slide out and slide into the interior of the fixing groove 11, and realize the fixing and releasing of the rotating shaft 15, making the angle adjustment of the guide block 7 more convenient, and allowing the guide block 7 to rotate to multiple positions, so that the device can guide and cut the workpiece from multiple angles, making the processing of the workpiece more convenient.
[0026] A spring 14 is fixedly connected to the bottom of the L-shaped fixing bracket 12. The bottom end of the spring 14 is fixedly connected to the inner wall of the power groove 13. The spring 14 can be compressed and reset by moving the L-shaped fixing bracket 12.
[0027] Working Principle: This type of new mother-and-child saw with high efficiency and stable cutting performance first involves the operator rotating the threaded rod 4. Under the constraint of the adjusting groove 3, the threaded rod 4 drives the moving block 5 to move, which in turn drives the guide block 7 via the moving frame 6. This adjusts the position of the guide block 7, allowing the operator to more easily adjust it and enabling the guide block 7 to more stably and efficiently position and guide the workpiece. Simultaneously, the operator slides the L-shaped fixing frame 12 into and out of the fixing groove 11, and the rotating shaft 15 is fixed and released, making the angle adjustment of the guide block 7 more convenient and allowing it to rotate to multiple positions. This allows the device to guide and cut the workpiece from multiple angles. After the operator places the workpiece on top of the equipment body 1 and starts the equipment body 1, the workpiece moves under the guidance of the U-shaped guide frame 8 and the rotating roller 9, allowing the equipment body 1 to cut and process the workpiece.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A new type of parent-child saw with high efficient and stable cutting performance, comprising a device body (1), characterized in that: The outer surface of the device body (1) is fixedly connected with a protective frame (2), the upper surface of the protective frame (2) is provided with an adjusting groove (3), the inside of the adjusting groove (3) is slidably connected with a moving block (5), the bottom of the moving block (5) is fixedly connected with a moving frame (6), the bottom of the moving frame (6) is provided with a guide block (7), one side of the guide block (7) is fixedly connected with a U-shaped guide frame (8), the U-shaped guide frame (8) is composed of two horizontal plates and a vertical plate, and the guide block (7) is provided with a rotation angle adjusting device.
2. A new type of parent-child saw with high efficient and stable cutting performance according to claim 1, characterized in that: The inside of the U-shaped guide frame (8) is rotatably connected with a rotating roller (9).
3. A new type of parent-child saw with high efficient and stable cutting performance according to claim 1, characterized in that: The inside of the adjusting groove (3) is rotatably connected with a threaded rod (4) extending to the outside of the protective frame (2), and the surface of the threaded rod (4) is threadedly connected with the inside of the moving block (5).
4. A new type of parent-child saw with high efficient and stable cutting performance according to claim 1, characterized in that: The rotation angle adjusting device comprises a rotating shaft (15), the surface of the rotating shaft (15) is rotatably connected with the inside of the guide block (7), the inside of the guide block (7) is provided with a rotating groove (10), the bottom end of the rotating shaft (15) penetrates into the inside of the guide block (7) and extends to the inside of the rotating groove (10), the bottom of the rotating shaft (15) is provided with a fixing groove (11), the inside of the guide block (7) is provided with a power groove (13) extending to the outside of the guide block (7), and the inside of the power groove (13) is slidably connected with an L-shaped fixing frame (12) extending to the outside of the guide block (7).
5. A new type of parent-child saw with high efficient and stable cutting performance according to claim 4, characterized in that: The inside of the power groove (13) is communicated with the inside of the rotating groove (10).
6. A new type of parent-child saw with high efficient and stable cutting performance according to claim 4, characterized in that: The top end of the rotating shaft (15) is fixedly connected with the bottom of the moving frame (6).
7. A new type of parent-child saw with high efficient and stable cutting performance according to claim 4, characterized in that: The side of the L-shaped fixing frame (12) close to the fixing groove (11) is inserted into the inside of the fixing groove (11).
8. A new type of parent-child saw with high efficient and stable cutting performance according to claim 4, characterized in that: The bottom of the L-shaped fixing frame (12) is fixedly connected with a spring (14), and the bottom end of the spring (14) is fixedly connected with the inner wall of the power groove (13).
Citation Information
Patent Citations
Primary-secondary saw
CN220331466U