Modular safety device for woodworking circular saw
By designing a modular safety device for woodworking circular saws, the combination of safety components and restricted components is used to solve the safety problems caused by the exposure of saw blades of woodworking circular saw machines, and the stability and accuracy of workpieces are improved, significantly improving the safety and practicality of the equipment.
Patent Information
- Application Number
- CN202421731890.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-22
AI Technical Summary
When used in the existing woodworking circular saw machines, the saw blade is exposed directly, which can easily cause injuries to workers, which is less safe and less practical.
Design a modular safety device for woodworking circular saws, including processing tables, saw blades, safety components and restriction components. The safety component controls the vertical movement of the moving block and the safety cover by rotating the first screw, covering the saw blade to prevent injury from the worker. The restricting member drives the restricting plate to move through the cooperation of the second screw and the slider, fixes workpieces of different sizes to prevent them from being displaced.
Effectively prevent workers from accidentally touching the saw blade and causing injury, improving the safety of the circular saw; at the same time, by restricting the design of the parts, ensuring the stability and accuracy of the workpiece during the cutting process, and improving practicality.
Smart Images
Figure CN222932970U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circular saws, in particular to a modular safety device for a woodworking circular saw. Background Technique
[0002] A circular saw refers to a toothed tool used to cut steel. A metal circular saw can easily cut steel. The circular saw adopts a unique material and tooth profile. Compared with previous products, it cuts metal faster, has stronger chip disposal ability, and does not conduct heat during the cutting process. Circular sawing machines can be divided into metal circular sawing machines and woodworking circular sawing machines according to the type of processed products. Woodworking circular sawing machines are mainly used to saw wood.
[0003] The existing patent CN215094143U discloses an adjustable woodworking circular sawing machine, belonging to the technical field of circular sawing machines. The adjustable woodworking circular sawing machine includes a workbench, including a working surface and legs; a plurality of hinge mechanisms provided on the legs; at least one extension table provided on the workbench through the hinge mechanisms; the hinge mechanisms are configured to have the function of adjusting the extension table to be in at least two states, and the two states include a first state and a second state. The hinge mechanism adjusts the extension table to be in the first state or the second state. In the first state, the extension table is received under the working surface; in the second state, one side of the extension table is in close contact with the working surface, and the working surface is extended in length; according to the size of the workpiece and the processing requirements, different states of the extension table are selected to ensure the processing accuracy and efficiency.
[0004] When the existing woodworking circular sawing machine is in use, although it can process wood and the like, the saw blade of the circular sawing machine is usually directly exposed. When the circular saw is not working, if a worker accidentally touches the saw blade, it is very easy to cause the worker to be injured, resulting in relatively low safety of the circular saw and thus poor practicability. Content of the Utility Model
[0005] The purpose of the utility model is to provide a modular safety device for a woodworking circular saw to solve the problem that when the existing woodworking circular sawing machine is in use, although it can process wood and the like, the saw blade of the circular sawing machine is usually directly exposed. When the circular saw is not working, if a worker accidentally touches the saw blade, it is very easy to cause the worker to be injured, resulting in relatively low safety of the circular saw and thus poor practicability as mentioned in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A modular safety device for a woodworking circular saw, including a processing table, on which a saw blade is installed;
[0007] Safety component, on which a vertical rod is provided. The vertical rod is installed on the top of the processing table. A moving groove is provided on one side of the vertical rod. A moving block is slidably installed in the moving groove. A first screw rod is installed on the moving block. One side of the moving block is fixedly connected to a connecting rod. One end of the connecting rod is fixedly connected to a safety cover and a positioning component. The positioning component is fixedly connected to the vertical rod. The first screw rod is rotatably connected to the vertical rod.
[0008] Preferably, it further includes a limiting component, which includes sliding grooves respectively opened on both sides of the top of the processing table, sliders connected to the sliding grooves, second screw rods connected to the sliders, a first motor fixedly connected to one end of the second screw rod, and a limiting plate fixedly connected to the top of the slider. The second screw rod is screwed to the slider. The second screw rod is rotatably connected to the processing table. The slider is slidably connected to the sliding groove.
[0009] Preferably, the positioning component includes a first cross plate fixedly connected to the back of the processing table, a second cross plate fixedly connected to the back of the vertical rod, a first notch opened on the top of the first cross plate, a second notch opened on the top of the second cross plate, a guide rod fixedly connected to the inner wall of the second notch, a push plate connected to the outside of the guide rod, a spring fixedly connected to one side of the push plate, a plug rod fixedly connected to the other side of the push plate, and a slot opened on one side inside the first notch. The plug rod is inserted into the slot. The guide rod passes through the push plate and is slidably connected to the push plate.
[0010] Preferably, a fixing groove is opened on the top of the processing table. A fixing block is fixedly connected to the bottom of the vertical rod. The fixing block is inserted into the fixing groove.
[0011] Preferably, a receiving groove is opened on one side of the limiting plate. A plurality of rollers arranged evenly are provided in the receiving groove. The rollers are rotatably connected to the inner wall of the receiving groove.
[0012] Preferably, a second motor is installed on one side of the processing table. The output end of the second motor is fixedly connected to a first rotating shaft. A driving wheel is fixedly connected to the outside of the first rotating shaft. The middle of the saw blade is fixedly connected to a second rotating shaft. A driven wheel is fixedly connected to the outside of the second rotating shaft. A belt is provided between the driving wheel and the driven wheel. The driving wheel and the driven wheel are connected by belt drive.
[0013] Preferably, a third motor is fixedly connected to the top of the first screw rod. The third motor is fixedly connected to the top of the vertical rod.
[0014] Compared with the prior art, the beneficial effects of the present utility model are:
[0015] 1. By setting up a processing table, a saw blade, and safety components, the rotation of the first screw can control the vertical movement of the moving block, and further control the vertical movement of the connecting rod and the safety cover. The safety cover can be made to cover the outside of the saw blade, preventing workers from accidentally touching the saw blade and getting injured when the saw blade is not working, protecting the workers and improving the safety of the circular saw. Moreover, the vertical rod and others can be removed from the processing table as a whole, facilitating maintenance and replacement, greatly improving the practicality and efficiency of the device;
[0016] 2. By setting up a limiting component, the first motor can make the second screw rotate, and further make the slider drive the limiting plate to move. The movement of the two limiting plates can limit and fix workpieces of different sizes, preventing the workpieces from shifting during cutting, ensuring the stability and accuracy of workpiece cutting, and further improving the practicality. Description of the Drawings
[0017] Figure 1 Is the three-dimensional structure schematic diagram provided by the present utility model;
[0018] Figure 2 Is the front view provided by the present utility model;
[0019] Figure 3 Provided by the present utility model Figure 2 The three-dimensional sectional view at A - A in
[0020] Figure 4 Provided by the present utility model Figure 3 The enlarged view at C in
[0021] Figure 5 Provided by the present utility model Figure 2 The three-dimensional sectional view at B - B in
[0022] In the figure: 1. Processing table; 11. Saw blade; 21. Vertical rod; 22. Moving groove; 23. Moving block; 24. First screw; 25. Connecting rod; 26. Safety cover; 31. Sliding groove; 32. Slider; 33. Second screw; 34. First motor; 35. Limiting plate; 41. First cross plate; 42. Second cross plate; 43. First notch; 44. Second notch; 45. Guide rod; 46. Pusher plate; 47. Spring; 48. Insertion rod; 49. Insertion slot; 51. Fixed groove; 52. Fixed block; 61. Accommodation groove; 62. Roller; 71. Second motor; 72. First rotating shaft; 73. Driving wheel; 74. Second rotating shaft; 75. Driven wheel; 76. Belt; 81. Third motor. Detailed Description of the Embodiment
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, the present utility model provides a technical solution: a modular safety device for a woodworking circular saw, including a processing table 1, a saw blade 11, a safety component for preventing the saw blade 11 from hurting people, and a limiting component for preventing the workpiece from shifting. The safety component includes a vertical rod 21 provided on the top of the processing table 1, a moving groove 22 opened on one side of the vertical rod 21, a moving block 23 connected to the moving groove 22, a first screw rod 24 connected to the moving block 23, a connecting rod 25 fixedly connected to one side of the moving block 23, a safety cover 26 fixedly connected to one end of the connecting rod 25, and a positioning component for the vertical rod 21. The first screw rod 24 is screwed to the moving block 23, the first screw rod 24 is rotatably connected to the vertical rod 21, the moving block 23 is slidably connected to the moving groove 22. Rotating the first screw rod 24 can control the vertical movement of the moving block 23, and further control the vertical movement of the connecting rod 25 and the safety cover 26, so that the safety cover 26 can cover the saw blade 11 or disengage from the saw blade 11. When covering the saw blade 11, it can protect the worker and prevent the worker from accidentally touching the saw blade 11 and getting injured. When leaving the saw blade 11, it is convenient to cut the workpiece. The top of the first screw rod 24 is fixedly connected with a third motor 81, and the third motor 81 is fixedly connected to the top of the vertical rod 21. The third motor 81 can drive the first screw rod 24 to rotate and provide power for the first screw rod 24, improving the degree of automation. The positioning component includes a first horizontal plate 41 fixedly connected to the back of the processing table 1, a second horizontal plate 42 fixedly connected to the back of the vertical rod 21, a first notch 43 opened on the top of the first horizontal plate 41, a second notch 44 opened on the top of the second horizontal plate 42, a guide rod 45 fixedly connected to the inner wall of the second notch 44, a push plate 46 connected to the outside of the guide rod 45, a spring 47 fixedly connected to one side of the push plate 46, a plug rod 48 fixedly connected to the other side of the push plate 46, and a slot 49 opened on one side inside the first notch 43. The plug rod 48 is inserted into the slot 49. The guide rod 45 passes through the push plate 46 and is slidably connected to the push plate 46. The spring 47 is sleeved on the outside of the guide rod 45. Pushing the push plate 46 can drive the spring 47 to deform and at the same time drive the plug rod 48 to shift. The push plate 46 and the plug rod 48 can enter the first notch 43. When the spring 47 resets, the plug rod 48 can be inserted into the slot 49, which can quickly fix the vertical rod 21 to the processing table 1 and at the same time quickly disassemble the safety component. The safety component and the processing table 1 form a modular structure, which can be quickly installed and separated. A fixing groove 51 is opened on the top of the processing table 1, and a fixing block 52 is fixedly connected to the bottom of the vertical rod 21. The fixing block 52 is inserted into the fixing groove 51, and the fixing block 52 can be inserted into the fixing groove 51 to horizontally limit the vertical rod 21 and prevent the vertical rod 21 from shifting horizontally. A second motor 71 is installed on one side of the processing table 1. The output end of the second motor 71 is fixedly connected with a first rotating shaft 72, and an active pulley 73 is fixedly connected to the outside of the first rotating shaft 72. The middle of the saw blade 11 is fixedly connected with a second rotating shaft 74, and a driven pulley 75 is fixedly connected to the outside of the second rotating shaft 74. A belt 76 is provided between the active pulley 73 and the driven pulley 75.The driving wheel 73 and the driven wheel 75 are drivingly connected by a belt 76. The second motor 71 can control the rotation of the first rotating shaft 72 and the driving wheel 73. Through the belt 76 and the driven wheel 75, the second rotating shaft 74 and the saw blade 11 can be driven to rotate, and thus the workpiece can be conveniently cut and processed.
[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , the limiting component includes chutes 31 respectively opened on both sides of the top of the processing table 1, sliders 32 connected to the chutes 31, second screws 33 connected to the sliders 32, a first motor 34 fixedly connected to one end of the second screw 33, and a limiting plate 35 fixedly connected to the top of the slider 32. The second screw 33 is screwed to the slider 32, the second screw 33 is rotatably connected to the processing table 1, the slider 32 is slidably connected to the chute 31, the first motor 34 can drive the second screw 33 to rotate, the second screw 33 can control the movement of the slider 32, and the slider 32 can drive the limiting plate 35 to move, so as to limit workpieces of different sizes, prevent the workpiece from shifting, and ensure the accuracy of cutting the workpiece. A receiving groove 61 is opened on one side of the limiting plate 35, and a plurality of rollers 62 arranged uniformly are provided in the receiving groove 61. The rollers 62 are rotatably connected to the inner wall of the receiving groove 61. The workpiece can contact the rollers 62, and the rollers 62 rotate when the workpiece moves, which can reduce the friction between the workpiece and the limiting plate 35 and make the movement of the workpiece smoother.
[0026] Working principle: During operation, the push plate 46 is pushed. The push plate 46 can squeeze the spring 47 to deform it, and at the same time drive the insertion rod 48 to move. Then, the fixing block 52 at the bottom of the vertical rod 21 is inserted into the fixing groove 51. At this time, the insertion rod 48 enters the first notch 43, and the insertion rod 48 is aligned with the slot 49. Release the push plate 46. At this time, the spring 47 resets and can drive the insertion rod 48 to reset, so that the insertion rod 48 is inserted into the slot 49, and the vertical rod 21 can be fixed to the processing table 1. When the saw blade 11 is not in use, start the third motor 81. The third motor 81 can drive the first screw rod 24 to rotate. The rotation of the first screw rod 24 can drive the moving block 23 to move downward. The downward movement of the moving block 23 can drive the connecting rod 25 and the safety cover 26 to move downward, so that the safety cover 26 can cover the saw blade 11 and prevent it from being touched by the worker. When processing wood is required, start the third motor 81 to reverse, which can drive the first screw rod 24 to reverse, and then the safety cover 26 can move upward to expose the saw blade 11. Then, according to the size of the workpiece, start the two first motors 34. The first motor 34 can drive the second screw rod 33 to rotate. The rotation of the second screw rod 33 can move the slider 32. The slider 32 can drive the limiting plate 35 to move. The limiting plate 35 can drive the roller 62 to move, so that the roller 62 contacts the workpiece and can limit and fix the workpiece. Then start the second motor 71. The second motor 71 can drive the driving wheel 73 to rotate, which can drive the driven wheel 75 and the saw blade 11 to rotate. Then push the workpiece to move. The roller 62 rotates accordingly, which can reduce the friction and facilitate the movement of the workpiece. The workpiece moves to the saw blade 11 for cutting operation. The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A modular safety device for a woodworking circular saw, characterized in that: include: A processing table (1) on which a saw blade (11) is mounted; A safety component is provided with a vertical rod (21), the vertical rod (21) is installed on the top of the processing table (1), a moving groove (22) is provided on one side of the vertical rod (21), a moving block (23) is slidably installed in the moving groove (22), a first screw rod (24) is installed on the moving block (23), a connecting rod (25) is fixedly connected to one side of the moving block (23), a safety cover (26) and a positioning component are fixedly connected to one end of the connecting rod (25), the positioning component is fixedly connected to the vertical rod (21), and the first screw rod (24) is rotatably connected to the vertical rod (21).
2. A modular safety device for a woodworking circular saw according to claim 1, characterized in that: The invention also comprises a limiting component, which comprises a slide groove (31) respectively opened on both sides of the top of the processing table (1), a slider (32) connected to the slide groove (31), a second screw rod (33) connected to the slider (32), a first motor (34) fixedly connected to one end of the second screw rod (33), and a limiting plate (35) fixedly connected to the top of the slider (32), the second screw rod (33) and the slider (32) are screwed together, the second screw rod (33) is rotatably connected to the processing table (1), and the slider (32) is slidably connected to the slide groove (31).
3. A modular safety device for a woodworking circular saw according to claim 1, characterized in that: The positioning component comprises a first transverse plate (41) fixedly connected to the back of the processing table (1), a second transverse plate (42) fixedly connected to the back of the vertical rod (21), a first notch (43) opened at the top of the first transverse plate (41), a second notch (44) opened at the top of the second transverse plate (42), a guide rod (45) fixedly connected to the inner wall of the second notch (44), a push plate (46) connected to the outer side of the guide rod (45), a spring (47) fixedly connected to one side of the push plate (46), an insertion rod (48) fixedly connected to the other side of the push plate (46), and a slot (49) opened at one side of the first notch (43), the insertion rod (48) being plugged into the slot (49), and the guide rod (45) passing through the push plate (46) and being slidably connected to the push plate (46).
4. A modular safety device for a woodworking circular saw according to claim 1, characterized in that: The top of the processing table (1) is provided with a fixing groove (51), the bottom of the vertical rod (21) is fixedly connected with a fixing block (52), and the fixing block (52) is plugged into the fixing groove (51).
5. A modular safety device for a woodworking circular saw according to claim 2, characterized in that: A receiving groove (61) is provided on one side of the limiting plate (35), and a plurality of rollers (62) arranged evenly are provided in the receiving groove (61), and the rollers (62) are rotatably connected to the inner wall of the receiving groove (61).
6. A modular safety device for a woodworking circular saw according to claim 1, characterized in that: A second motor (71) is installed on one side of the processing table (1); the output end of the second motor (71) is fixedly connected to a first rotating shaft (72); a driving wheel (73) is fixedly connected to the outer side of the first rotating shaft (72); a second rotating shaft (74) is fixedly connected to the middle of the saw blade (11); a driven wheel (75) is fixedly connected to the outer side of the second rotating shaft (74); a belt (76) is provided between the driving wheel (73) and the driven wheel (75); and the driving wheel (73) and the driven wheel (75) are connected in transmission via the belt (76).
7. A modular safety device for a woodworking circular saw according to claim 1, characterized in that: A third motor (81) is fixedly connected to the top of the first screw rod (24), and the third motor (81) is fixedly connected to the top of the vertical rod (21).