A mobile protective device for a cutting machine

Abstract

This utility model relates to the field of cutting equipment technology and discloses a mobile protective device for a cutting machine, comprising: a base plate, a base fixedly installed on the top surface of the base plate, a frame rotatably mounted on the top surface of the base, a drive mechanism fixedly installed on the top surface of the frame, and a main shaft rotatably mounted inside the frame, with a cutting blade fixedly mounted on the surface of the main shaft; the frame also has a wrapping structure for wrapping the cutting blade. This mobile protective device for a cutting machine, through the combined design of a mobile protective cover and a fixed protective cover, forms a dynamic wrapping structure. Therefore, during cutting: when the cutting blade is pressed down, the mobile protective cover retracts under the tension of a spring, exposing the blade to complete the cutting; and during resetting: after the cutting blade is lifted, the mobile protective cover moves forward under the resetting force of the spring, again covering the cutting part of the blade, ensuring that the cutting blade is always covered by a physical barrier when not in operation, eliminating the risk of direct contact during manual material handling.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, specifically a mobile protection device for a cutting machine. Background Technology

[0002] A cutting machine is a type of mechanical equipment widely used in industrial manufacturing, construction, metal processing, stone processing and other fields. It is mainly used for cutting, slitting or grooving various materials.

[0003] After a traditional cutting machine finishes cutting, the cutting blade may be exposed. Operators may accidentally touch the blade when picking up materials or adjusting workpieces, leading to safety accidents such as cuts and scratches. A single fixed protective cover may only cover part of the blade or may not be able to adapt to the needs of different cutting angles or depths, resulting in the blade still being exposed under certain working conditions. To address these issues, we have proposed a mobile protective device for cutting machines. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a mobile protection device for cutting machines, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a mobile protective device for a cutting machine, comprising: a base plate, a base fixedly mounted on the top surface of the base plate, a frame rotatably mounted on the top surface of the base, a drive mechanism fixedly mounted on the top surface of the frame, and a main shaft rotatably mounted inside the frame, with a cutting blade fixedly mounted on the surface of the main shaft; the frame also has a wrapping structure for wrapping the cutting blade, the wrapping structure including a movable protective cover and a fixed protective cover, a connecting cylinder fixedly mounted on the side of the fixed protective cover, and the fixed protective cover being fixed to the frame through the connecting cylinder. The movable protective cover is fixedly connected to the connecting cylinder via a concentric bearing on its inner side. A convex ring is fixedly installed on the outer surface of the movable protective cover. A reset mechanism is provided on the side of the base plate. The reset mechanism includes an L-shaped seat fixedly installed on the side of the base plate. A second pull ring is fixedly installed on the side of the L-shaped seat. A tension spring is hung on the second pull ring. The reset mechanism also includes a shaft rotatably connected to the convex ring. A first pull ring is fixedly installed on the end face of the shaft. The end of the tension spring away from the second pull ring is hooked to the first pull ring.

[0006] Preferably, the fixed protective cover is located in the cavity inside the movable protective cover, while the cutting blade is located in the cavity inside the fixed protective cover.

[0007] Preferably, the connecting cylinder has a cavity inside for accommodating the main shaft, and the centerline of the concentric bearing coincides with the centerline of the main shaft.

[0008] Preferably, two retaining rings are fixedly installed on the outer surface of the shaft, and the two retaining rings are respectively disposed on both sides of the convex ring.

[0009] Preferably, there are two tension springs, which are symmetrically arranged on both sides of the frame, and there is a gap between the tension springs and the frame.

[0010] Preferably, a reinforcing plate is provided at the corner of the L-shaped seat, and two L-shaped seats are provided, with a reinforcing beam welded between the two L-shaped seats.

[0011] Preferably, a handle is fixedly installed on the side of the frame, and a rubber sleeve is provided on the outer surface of the handle.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This mobile protective device for the cutting machine forms a dynamic enclosure structure through the combination of a mobile protective cover and a fixed protective cover. Therefore, during cutting: when the cutting blade is pressed down, the mobile protective cover retracts under the tension of the spring, exposing the blade to complete the cutting; and during resetting: after the cutting blade is lifted, the mobile protective cover moves forward under the resetting force of the spring, covering the cutting part of the blade again, ensuring that the cutting blade is always covered by a physical barrier when not in operation, eliminating the risk of direct contact when manually handling materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention and an enlarged schematic diagram of some of its components;

[0015] Figure 2 This is a side view projection diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the protective cover structure of this utility model;

[0017] Figure 4 This is a cross-sectional schematic diagram of part of the structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the shaft structure of this utility model.

[0019] In the diagram: 1. Base plate; 2. Base; 3. Frame; 4. Handle; 5. Drive mechanism; 6. Main shaft; 7. Cutting blade; 8. Moving protective cover; 9. Fixed protective cover; 10. Convex ring; 11. Shaft; 12. First pull ring; 13. Tension spring; 14. Second pull ring; 15. L-shaped seat; 16. Reinforcing plate; 17. Reinforcing beam; 18. Concentric bearing; 19. Connecting cylinder; 20. Retaining ring. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 A mobile protective device for a cutting machine includes: a base plate 1, a base 2 fixedly mounted on the top surface of the base plate 1, a frame 3 rotatably mounted on the top surface of the base 2, a drive mechanism 5 fixedly mounted on the top surface of the frame 3, and a main shaft 6 rotatably mounted inside the frame 3, with a cutting blade 7 fixedly mounted on the surface of the main shaft 6; a handle 4 fixedly mounted on the side of the frame 3, with a rubber sleeve on the outer surface of the handle 4 to increase friction, prevent slippage during operation, and improve grip comfort.

[0022] The frame 3 is also equipped with a wrapping structure for wrapping the cutting blade 7. The wrapping structure includes a movable protective cover 8 and a fixed protective cover 9. A connecting cylinder 19 is fixedly installed on the side of the fixed protective cover 9, and the fixed protective cover 9 is fixedly connected to the frame 3 through the connecting cylinder 19. A concentric bearing 18 is provided on the inner side of the movable protective cover 8, and the movable protective cover 8 is rotatably connected to the connecting cylinder 19 through the concentric bearing 18. A convex ring 10 is fixedly installed on the outer surface of the movable protective cover 8. The fixed protective cover 9 is located in the inner cavity of the movable protective cover 8, and the cutting blade 7 is located in the inner cavity of the fixed protective cover 9. The connecting cylinder 19 is provided with a cavity for accommodating the spindle 6, ensuring that the spindle 6 does not interfere with the protective cover when rotating, and at the same time providing a rotation fulcrum for the movable protective cover 8. The axis of the concentric bearing 18 coincides with the axis of the spindle 6.

[0023] A reset mechanism is provided on the side of the base plate 1. The reset mechanism includes an L-shaped seat 15 fixedly installed on the side of the base plate 1. A reinforcing plate 16 is provided at the corner of the L-shaped seat 15. The reinforcing plate 16 improves the deformation resistance of the corner and prevents loosening after long-term use. There are also two L-shaped seats 15. A reinforcing beam 17 is welded between the two L-shaped seats 15 to form a stable frame and ensure that the tension springs 13 on both sides are evenly stressed. A second pull ring 14 is fixedly installed on the side of the L-shaped seat 15. A tension spring 1 is hung on the second pull ring 14. 3. The reset mechanism also includes a shaft 11 rotatably connected to the convex ring 10. A first pull ring 12 is fixedly installed on the end face of the shaft 11. The end of the tension spring 13 away from the second pull ring 14 is hooked to the first pull ring 12. Two retaining rings 20 are fixedly installed on the outer surface of the shaft 11. The two retaining rings 20 are respectively set on both sides of the convex ring 10. There are two tension springs 13 in total. The two tension springs 13 are symmetrically arranged on both sides of the frame 3, and a gap is provided between the tension springs 13 and the frame 3 to balance the tension and prevent the cover from shifting or jamming.

[0024] The drive mechanism 5 includes a drive motor and a synchronous pulley set. The synchronous pulley set has no slippage and the transmission ratio is accurate, ensuring that the cutting blade 7 rotates at a stable speed and improving the cutting quality. The output shaft of the drive motor is synchronously connected to the main shaft 6 through the synchronous pulley set. Therefore, after the drive mechanism 5 is started, the synchronous pulley set can be used to synchronously drive the main shaft 6 and the cutting blade 7 on the main shaft 6 to rotate for cutting.

[0025] Working principle: An L-shaped seat 15 is fixed to the side of the base plate 1, and the two ends of the tension spring 13 are respectively hooked to the second pull ring 14 on the L-shaped seat 15 and the first pull ring 12 at the end of the shaft 11. The shaft 11 is rotatably connected to the protruding ring 10 fixed on the surface of the movable protective cover 8. The movable protective cover 8 is rotatably connected to the connecting cylinder 19 through the concentric bearing 18. The fixed protective cover 9 is fixedly connected to the frame 3 through the connecting cylinder 19. Therefore, when the handle 4 is used to press down on the frame 3 and the cutting blade 7 for cutting, the tension spring 13 is stretched and deformed. Under the tension of the tension spring 13, the movable protective cover 8 rotates, exposing the cutting blade 7 for cutting. When the entire frame 3, handle 4 and cutting blade 7 are reset, the tension spring 13 retracts, and the movable protective cover 8 moves forward under the reset force of the tension spring 13, covering the cutting part of the movable protective cover 8 again.

[0026] 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 mobile cutting machine protection device, characterized in that, include: A base plate (1) is fixedly installed on the top surface of the base plate (1). A frame (3) is rotatably installed on the top surface of the base (2). A drive mechanism (5) is fixedly installed on the top surface of the frame (3). A main shaft (6) is rotatably installed inside the frame (3). A cutting blade (7) is fixedly installed on the surface of the main shaft (6). The frame (3) is also provided with a wrapping structure for wrapping the cutting blade (7). The wrapping structure includes a movable protective cover (8) and a fixed protective cover (9). A connecting cylinder (19) is fixedly installed on the side of the fixed protective cover (9), and the fixed protective cover (9) is fixedly connected to the frame (3) through the connecting cylinder (19). A concentric bearing (18) is provided on the inner side of the movable protective cover (8), and the movable protective cover (8) is rotatably connected to the connecting cylinder (19) through the concentric bearing (18). A protruding ring (10) is fixedly installed on the outer surface of the movable protective cover (8). The base plate (1) is provided with a reset mechanism on its side. The reset mechanism includes an L-shaped seat (15) fixedly installed on the side of the base plate (1). A second pull ring (14) is fixedly installed on the side of the L-shaped seat (15). A tension spring (13) is hung on the second pull ring (14). The reset mechanism also includes a shaft (11) rotatably connected to the convex ring (10). A first pull ring (12) is fixedly installed on the end face of the shaft (11). The end of the tension spring (13) away from the second pull ring (14) is hooked to the first pull ring (12).

2. A mobile cutting machine protection device according to claim 1, wherein, The fixed protective cover (9) is located in the cavity inside the movable protective cover (8), and the cutting blade (7) is located in the cavity inside the fixed protective cover (9).

3. A mobile cutting machine protection device according to claim 1, wherein, The connecting cylinder (19) has a cavity inside for accommodating the main shaft (6), and the axis of the concentric bearing (18) coincides with the axis of the main shaft (6).

4. The mobile cutting machine protection device of claim 1, wherein, Two retaining rings (20) are fixedly installed on the outer surface of the shaft (11), and the two retaining rings (20) are respectively disposed on both sides of the convex ring (10).

5. A mobile protective device for a cutting machine according to claim 1, characterized in that, There are two tension springs (13), which are symmetrically arranged on both sides of the frame (3), and there is a gap between the tension springs (13) and the frame (3).

6. A mobile cutting machine protection device according to claim 1, wherein, A reinforcing plate (16) is provided at the corner of the L-shaped seat (15). There are two L-shaped seats (15), and a reinforcing beam (17) is welded between the two L-shaped seats (15).

7. The mobile cutting machine protection device of claim 1, wherein, A handle (4) is fixedly installed on the side of the frame (3), and a rubber sleeve is provided on the outer surface of the handle (4).

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