Cutting device for metal product machining
The flipping mechanism flips the protective cover to expose the bottom of the cutting blade, solving the problem of obstruction when cutting large-diameter metal with existing devices, and improving the applicability and safety of cutting metal plates and large-diameter steel bars.
Patent Information
- Application Number
- CN202423310395.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing metal processing cutting devices may have a movable cover that blocks the metal to be cut when cutting metal sheets or large-diameter steel bars, preventing it from rotating properly and completing the cutting operation, thus limiting its application.
The device employs a flipping mechanism, including a flipping motor and a connecting cover. The flipping motor drives the protective cover to flip, exposing the bottom of the cutting blade for cutting. After cutting, the blade is protected inside to avoid obstructing the cutting operation.
The cutting device has improved its applicability to cutting metal sheets and large-diameter steel bars, enhanced its safety, and prevented accidental injuries caused by exposed cutting blades.
Smart Images

Figure CN223616856U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal processing equipment technology, specifically a cutting device for processing metal products. Background Technology
[0002] A cutting device used in metal processing is a mechanical device specifically designed to cut metal materials to predetermined dimensions. It has wide applications in various metal manufacturing fields such as steel, aluminum, and copper processing, and can produce metal parts or finished products of various lengths and shapes. Based on its working principle and technical characteristics, cutting devices are subdivided into several types, including sawing machines, laser cutting machines, and waterjet cutting machines. Among them, sawing machines are particularly common in daily life due to their widespread availability and practicality, and are often used for cutting metal frames for doors and windows, as well as for cutting steel bars in construction.
[0003] The patent with publication number CN210023592U discloses a rebar cutting machine, including a base, a blade, and a protective cover. The protective cover includes an upper fixed cover and a lower movable cover. The upper fixed cover has a rotating shaft at the center of the blade. Two lower movable covers are symmetrically arranged and are rotatably connected to the rotating shaft. The upper fixed cover and the two lower movable covers completely enclose the blade. The edges of the two lower movable covers abut each other. Each of the two lower movable covers has a guide opening at its lowest point. The base has a strip groove for the lower movable covers to extend into. This invention can cover the blade at any time to ensure that foreign objects cannot directly touch the blade, making it safer, and can also prevent sparks from flying out when cutting rebar.
[0004] However, the metal cutting devices described above still have the following problems: when cutting metal sheets or large-diameter steel bars, a problem may arise where the bottom of the movable cover presses against the metal to be cut, preventing the metal from contacting the guide opening. This prevents the movable cover from being squeezed and flipped through the guide opening, hindering its upward rotation. Consequently, the saw blade cannot press down onto the metal surface, and the cutting operation cannot be successfully completed. Therefore, these cutting devices are typically limited to cutting smaller diameter steel bars, and their application is somewhat limited. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a cutting device for metal product processing, thereby improving the applicability of the cutting device.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for metal product processing, comprising a cutting motor, a protective cover, and a cutting blade. A mounting tube is fixedly connected between the protective cover and the housing of the cutting motor. The output shaft of the cutting motor passes through the protective cover along the mounting tube and is fixedly connected to the cutting blade. A protective cover is connected to the outside of the protective cover. One side of the protective cover is connected to the mounting tube, and the other side is connected to a flipping mechanism. The flipping mechanism is connected to the side of the protective cover away from the cutting motor.
[0007] Furthermore, the flipping mechanism includes a flipping motor and a connecting cover. The outer shell of the flipping motor is fixedly connected to the protective cover on the side away from the cutting motor. The connecting cover is fixedly connected to the protective cover on the side away from the cutting motor. The connecting cover is sleeved on the outside of the flipping motor. The output shaft of the flipping motor is fixedly connected to the inner wall of the end of the connecting cover.
[0008] Furthermore, the outer casing of the flip motor is fitted with and fixedly connected to a fixing tube, which is fixedly connected to the outer wall of the protective cover. The connecting ends of the protective cover and the connecting cover are both fitted with fixing tubes and are rotatably connected to the fixing tubes.
[0009] Furthermore, a limiting ring is fixedly connected to the outer wall of the fixed tube near the connecting cover, and a limiting groove is opened on the inner wall of the connecting cover, with the limiting ring and the limiting groove being rotatably connected.
[0010] Furthermore, the flipping motor and the cutting motor share a single start switch.
[0011] Furthermore, a connecting ring is fixedly connected to the side of the protective cover near the cutting motor, and the connecting ring is fitted with a mounting tube and slidably connected to the mounting tube.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This cutting device for metal processing can rotate the protective cover outside the protective cover through a flipping mechanism. When the cutting blade is not in use, the protective cover can be flipped to the bottom of the protective cover. The protective cover can protect the cutting blade inside, improving the safety of the cutting machine. At the same time, the protective cover flipped to the top of the protective cover can avoid obstructing metal cutting. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall appearance and connection structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the overall appearance and connection structure of another embodiment of this utility model;
[0016] Figure 3 This is a cross-sectional schematic diagram of the connection structure of the protective cover, shield, and connecting cover of this utility model;
[0017] Figure 4 for Figure 3 Enlarged schematic diagram of the connection structure at point A.
[0018] In the diagram: 1. Cutting motor; 2. Protective cover; 3. Cutting blade; 4. Mounting tube; 5. Protective cover; 6. Tilting motor; 7. Connecting cover; 8. Fixing tube; 9. Limiting ring; 10. Connecting ring; 701. Limiting groove. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Please see Figures 1 to 4 A cutting device for processing metal products includes a cutting motor 1, a protective cover 2, and a cutting blade 3. A mounting tube 4 is fixedly connected between the protective cover 2 and the housing of the cutting motor 1. The output shaft of the cutting motor 1 passes through the protective cover 2 along the mounting tube 4 and is fixedly connected to the cutting blade 3. A protective cover 5 is connected to the outside of the protective cover 2. One side of the protective cover 5 is connected to the mounting tube 4, and the other side is connected to a flipping mechanism. The flipping mechanism is connected to the side of the protective cover 2 away from the cutting motor 1.
[0021] like Figures 1 to 4 As shown, the cutting device for metal product processing in this utility model is structurally similar to existing cutting devices for metal product processing, such as the rebar cutting machine disclosed in patent publication number CN210023592U. The main improvement of this utility model lies in improving the applicability of the cutting machine, such as... Figures 1 to 4 As shown, in use, the metal cutting device of this utility model flips the protective cover 5 covering the cutting blade 3 upward through the flipping mechanism, thereby flipping it to the outside of the protective cover 2. At this time, the cutting motor 1 drives the cutting blade 3 to rotate at high speed and cut the metal. Since the bottom of the cutting blade 3 is completely exposed, it is convenient to cut wider metal plates or steel bars with larger diameters. When cutting is not required, the flipping mechanism drives the protective cover 5 to flip downward from the top of the protective cover 2, thereby protecting the bottom of the cutting blade 3 inside. Together with the protective cover 2, the cutting blade 3 is completely protected inside, thus avoiding the cutting blade 3 being exposed when not in use and causing accidental injury to personnel.
[0022] like Figures 1 to 3As shown, the flipping mechanism includes a flipping motor 6 and a connecting cover 7. The housing of the flipping motor 6 is fixedly connected to the side of the protective cover 2 away from the cutting motor 1. The connecting cover 7 is fixedly connected to the side of the protective cover 5 away from the cutting motor 1. The connecting cover 7 is sleeved on the outside of the flipping motor 6, and the output shaft of the flipping motor 6 is fixedly connected to the inner wall of the end of the connecting cover 7. Activating the flipping motor 6, which is fixed to the side of the protective cover 2, can drive the connecting cover 7 to rotate, thereby causing the protective cover 5, which is fixed to the connecting cover 7, to flip outside the cutting blade 3 and the protective cover 2.
[0023] like Figure 3 As shown, the housing of the flip motor 6 is fitted with and fixedly connected to a fixing tube 8. The fixing tube 8 is fixedly connected to the outer wall of the protective cover 2. The connecting ends of the protective cover 5 and the connecting cover 7 are both fitted with fixing tubes 8 and rotatably connected to the fixing tubes 8. The fixing tubes 8 can more securely mount the flip motor 6 on the side of the protective cover 2. At the same time, when the flip motor 6 drives the connecting cover 7 and the protective cover 5 to flip, the connecting cover 7 and the protective cover 5 flip more stably outside the fixing tubes 8, avoiding the problem of the motor bearing of the flip motor 6 failing or rotating poorly due to the heavy pressure of the protective cover 5.
[0024] like Figure 3 or Figure 4 As shown, a limiting ring 9 is fixedly connected to the outer wall of the fixed tube 8 near the connecting cover 7. A limiting groove 701 is formed on the inner wall of the connecting cover 7, and the limiting ring 9 is rotatably connected to the limiting groove 701. Through the connection between the limiting ring 9 and the limiting groove 701, the connection position between the connecting cover 7 and the flipping motor 6 can be restricted, preventing the protective cover 5 and the connecting cover 7 from shifting laterally outside the fixed tube 8, which could cause the motor shaft of the flipping motor 6 to detach from the connecting cover 7, thus improving the connection stability between the connecting cover 7 and the motor shaft of the flipping motor 6.
[0025] like Figures 1 to 4 As shown, the tilting motor 6 and the cutting motor 1 share a single start switch. By sharing a single start switch, the tilting motor 6 can be started simultaneously with the cutting motor 1, causing the protective cover 5 to tilt upwards, thus exposing the bottom of the cutting blade 3 for cutting operations. After the protective cover 5 has tilted upwards, the tilting motor 6 needs to stop working and remain locked to prevent the protective cover 5 from tilting downwards and interfering with the metal cutting operation. When the cutting operation is completed and the start switch of the cutting motor 1 is turned off, the tilting motor 6 restarts and tilts the protective cover 5 downwards to cover the bottom of the cutting blade 3.
[0026] like Figure 3As shown, a connecting ring 10 is fixedly connected to the side of the protective cover 5 near the cutting motor 1. The connecting ring 10 is fitted onto the mounting tube 4 and is slidably connected to it. By using the connecting ring 10 on the outside of the mounting tube 4 on the other side of the protective cover 5, the protective cover 5 is more stable when it is flipped and is less prone to tilting or misalignment.
[0027] 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.
Claims
1. A cutting device for processing metal products, comprising a cutting motor (1), a protective cover (2), and a cutting blade (3), characterized in that: An mounting tube (4) is fixedly connected between the protective cover (2) and the outer shell of the cutting motor (1). The output shaft of the cutting motor (1) passes through the protective cover (2) along the mounting tube (4) and is fixedly connected to the cutting blade (3). A protective cover (5) is connected to the outside of the protective cover (2). One side of the protective cover (5) is connected to the mounting tube (4), and the other side is connected to a flipping mechanism. The flipping mechanism is connected to the side of the protective cover (2) away from the cutting motor (1).
2. The cutting device for processing metal products according to claim 1, characterized in that: The flipping mechanism includes a flipping motor (6) and a connecting cover (7). The outer shell of the flipping motor (6) is fixedly connected to the protective cover (2) on the side away from the cutting motor (1). The connecting cover (7) is fixedly connected to the protective cover (5) on the side away from the cutting motor (1). The connecting cover (7) is sleeved on the outside of the flipping motor (6). The output shaft of the flipping motor (6) is fixedly connected to the inner wall of the end of the connecting cover (7).
3. The cutting device for metal product processing according to claim 2, characterized in that: The outer shell of the flip motor (6) is fitted with and fixedly connected to a fixing tube (8). The fixing tube (8) is fixedly connected to the outer wall of the protective cover (2). The connecting ends of the protective cover (5) and the connecting cover (7) are fitted with fixing tubes (8) and are rotatably connected to the fixing tubes (8).
4. The cutting device for processing metal products according to claim 3, characterized in that: The fixed tube (8) is fixedly connected to the outer wall of the end near the connecting cover (7) with a limiting ring (9), and the inner wall of the connecting cover (7) is provided with a limiting groove (701), and the limiting ring (9) is rotatably connected to the limiting groove (701).
5. A cutting device for processing metal products according to claim 2, 3 or 4, characterized in that: The flipping motor (6) and the cutting motor (1) share a start switch.
6. A cutting device for processing metal products according to claim 1, 2, 3 or 4, characterized in that: The protective cover (5) is fixedly connected to a connecting ring (10) on the side near the cutting motor (1). The connecting ring (10) is fitted with a mounting tube (4) and is slidably connected to the mounting tube (4).
7. A cutting device for processing metal products according to claim 5, characterized in that: The protective cover (5) is fixedly connected to a connecting ring (10) on the side near the cutting motor (1). The connecting ring (10) is fitted with a mounting tube (4) and is slidably connected to the mounting tube (4).
Citation Information
Patent Citations
Steel bar cutting machine
CN210023592U