Anti-collision device for cutting bed
By combining a sliding rod, slider, connecting rod, and anti-collision plate, along with a cushioning design using a sleeve, moving rod, and spring, the problem of the airbag in the cutting bed anti-collision device being unusable for reuse is solved. This achieves automatic reset and fault indication, reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YYC IND CO LTD CHINA
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-10
Smart Images

Figure CN224476288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting bed equipment technology, and in particular to an anti-collision device for a cutting bed. Background Technology
[0002] A cutting table is a specialized piece of equipment or workbench used in the garment, footwear, and bag manufacturing industries for the batch cutting of fabrics or materials. It is a crucial step in the production process, primarily used to precisely cut multiple layers of fabric or leather according to a pre-designed pattern (template), preparing them for subsequent sewing or processing. The cutting components of a cutting table, such as blades, lasers, or high-pressure water jets, can cause serious injury (such as cuts or impacts) to personnel when operating at high speeds. Anti-collision devices automatically stop the machine when a person approaches the danger zone to prevent accidents.
[0003] A patent application with application number CN202221976865.8 discloses an anti-collision device for an automatic cutting bed. It includes anti-collision plates movably mounted on both sides of the cutting bed. Symmetrically arranged connecting rods are fixedly connected to the sides of the two anti-collision plates that are close to each other. Sleeves are fixedly mounted at both ends of the cutting bed, and one end of each connecting rod is movably fitted into a sleeve. Anti-collision buffer airbags are also fixedly connected between the cutting bed and the anti-collision plates. Fixed plates are fixedly mounted on the anti-collision plates above and below the buffer airbags. A movable plate is movably mounted on the anti-collision plates between the fixed plates and the buffer airbags. This patent achieves good anti-collision effect, but once the airbags deploy, they need to be replaced and cannot be reused, resulting in high maintenance costs.
[0004] Therefore, it is necessary to design an anti-collision device for cutting beds to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the disadvantages of not being able to be reused and having high maintenance costs, this utility model provides an anti-collision device for cutting beds.
[0006] Technical solution: A collision avoidance device for a cutting bed includes a fixed frame and collision avoidance units disposed on the front and rear sides of the fixed frame. Each collision avoidance unit includes a slide rod, a slider, a first spring, a first connecting rod, a second connecting rod, and a collision avoidance plate. Two sliders are slidably connected to the middle of the slide rod. Both sliders are fixedly connected to the fixed frame with a first spring, and the first spring is sleeved on the slide rod. The two sliders on the right side are rotatably connected to the first connecting rod. The two sliders are rotatably connected to the first connecting rod and the second connecting rod, respectively. The first connecting rod and the second connecting rod are slidably connected and have a cross structure. A collision avoidance plate is rotatably connected between the first connecting rod and the second connecting rod away from the center end.
[0007] In a preferred embodiment of the present invention, the device further includes a movable rod, a sleeve, and a second spring. Two movable rods are fixedly connected to the two anti-collision plates near their center ends, and two sleeves are fixedly connected to the fixed frame away from its center ends. The four sleeves correspond to and are slidably connected to the four movable rods, and the four movable rods are fixedly connected to the fixed frame with a second spring.
[0008] In a preferred embodiment of the present invention, a housing is also included, with the housing fixedly connected to both ends of the inner side of the fixing frame.
[0009] In a preferred embodiment of the present invention, a first sensor is also included, and the two sliders on the right side are fixedly connected to the first sensor near the center end.
[0010] In a preferred embodiment of the present invention, a second sensor is also included. The second sensor is fixedly connected to the right side of the inner side of both housings, and the first sensor is electrically connected to the second sensor.
[0011] In a preferred embodiment of the present invention, an alarm is also included, with the alarm mounted on the top of each of the two second sensors passing through the housing, and the first and second sensors being electrically connected to the alarm.
[0012] In a preferred embodiment of this utility model, it further includes a screw, a mounting block, a rotating block, a ball bearing, a striking block, a sound plate, and a torsion spring. Screws are fixedly connected to the center ends of both anti-collision plates. Mounting blocks are fixedly connected to the center of both the front and rear sides of the fixing frame. Screws on the same side pass through the mounting blocks and are slidably connected to them. Rotating blocks are rotatably connected to the center ends of both mounting blocks. Screws on the same side pass through the rotating blocks and are rotatably connected to them. Ball bearings are rotatably connected between the rotating blocks and the screws. The ball bearings are slidably connected to the threaded grooves of the screws. Multiple striking blocks are circumferentially connected to the rotating blocks. A sound plate is rotatably connected to the right side of the mounting blocks. The striking blocks contact and engage with the sound plate. A torsion spring is fixedly connected between the sound plate and the mounting blocks.
[0013] Beneficial effects: 1. This utility model uses the cooperation of sliding rod, first spring, first connecting rod, second connecting rod and anti-collision plate to play a buffering role, thereby reducing the direct impact on the cutting machine. Moreover, it can automatically reset after being hit, can be reused, and reduce maintenance costs.
[0014] 2. This utility model uses the cooperation of the sleeve, the moving rod, and the second spring to achieve a buffering effect, further reducing the impact on the cutting equipment.
[0015] 3. This utility model uses the cooperation of a first sensor, a second sensor, and an alarm to alert workers that the cutting bed equipment may malfunction.
[0016] 4. This utility model uses the cooperation of a screw rotating block, a striking block and a sound plate to produce a sound, indicating to the staff the degree of impact of the anti-collision plate. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the components of this utility model, including the fixing frame, anti-collision plate, and shell.
[0018] Figure 2 This is a three-dimensional sectional view of the components of this utility model, including the fixed frame, sliding rod, and slider.
[0019] Figure 3 This is a three-dimensional cross-sectional view of the components of this utility model, including the first sensor, the second sensor, and the alarm.
[0020] Figure 4 This is a three-dimensional sectional view of the components of this utility model, including the fixing frame, screw, and mounting block.
[0021] Figure 5 This is a three-dimensional sectional view of the mounting block, rotating block, and ball bearing components of this utility model. The drawing includes the following reference numerals: 1-fixed frame, 2-sliding rod, 3-sliding block, 301-first spring, 4-first connecting rod, 5-second connecting rod, 6-anti-collision plate, 7-sleeve, 8-moving rod, 9-second spring, 10-housing, 11-first sensor, 12-second sensor, 13-alarm, 14-screw, 15-mounting block, 16-rotating block, 17-ball bearing, 18-striking block, 19-sound plate, 20-torsion spring. Detailed Implementation
[0022] Example: A collision avoidance device for a cutting bed, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the device includes a fixed frame 1 and anti-collision units disposed on the front and rear sides of the fixed frame 1. Each anti-collision unit includes a sliding rod 2, a slider 3, a first spring 301, a first connecting rod 4, a second connecting rod 5, and an anti-collision plate 6. Two sliders 3 are slidably connected to the middle of the sliding rod 2. Both sliders 3 are fixedly connected to the fixed frame 1 by the first spring 301. The first spring 301 is sleeved on the sliding rod 2. The two sliders 3 on the right side are rotatably connected to the first connecting rod 4. The two sliders 3 are rotatably connected to the first connecting rod 4 and the second connecting rod 5, respectively. The first connecting rod 4 and the second connecting rod 5 are slidably connected and in a cross state. An anti-collision plate 6 is rotatably connected between the first connecting rod 4 and the second connecting rod 5 away from the center end.
[0023] like Figure 2As shown, it also includes a movable rod 8, a sleeve 7, and a second spring 9. Two movable rods 8 are fixedly connected to the two anti-collision plates 6 near the center end, and two sleeves 7 are fixedly connected to the fixed frame 1 away from the center end. The four sleeves 7 correspond to the four movable rods 8 and are slidably connected. The four movable rods 8 are all fixedly connected to the fixed frame 1 with a second spring 9.
[0024] like Figure 1 , Figure 2 and Figure 3 As shown, it also includes a housing 10. The housing 10 is bolted to both ends of the inner side of the fixing frame 1. The housing 10 is sleeved around the slide rod 2, the slider 3 and the first spring 301 to protect them from impact. It includes a first sensor 11. The two sliders 3 on the right side are provided with the first sensor 11 near the center end. It also includes a second sensor 12. The second sensor 12 is provided on the right side of the inner side of the two housings 10. The first sensor 11 and the second sensor 12 are electrically connected. It also includes an alarm 13. The alarm 13 is installed through the housing 10 on the top of the two second sensors 12. The first sensor 11 and the second sensor 12 are electrically connected to the alarm 13.
[0025] like Figure 4 and Figure 5 As shown, it also includes a screw 14, a mounting block 15, a rotating block 16, a ball bearing 17, a striking block 18, a sound plate 19, and a torsion spring 20. The two anti-collision plates 6 are fixedly connected to the screw 14 near their center ends. The mounting blocks 15 are welded to the middle of the front and rear sides of the fixing frame 1. The screw 14 on the same side passes through the mounting block 15 and is slidably connected to the mounting block 15. The two mounting blocks 15 are rotatably connected to the rotating block 16 near their center ends. The screw 14 on the same side passes through the rotating block 16 and is rotatably connected to the rotating block 16. A ball bearing 17 is rotatably connected between the rotating block 16 and the screw 14. The ball bearing 17 is slidably connected to the threaded groove of the screw 14. Multiple striking blocks 18 are connected around the rotating block 16. A sound plate 19 is rotatably connected to the right side of the mounting block 15. The striking block 18 and the sound plate 19 are in contact and engaged. A torsion spring 20 is fixedly connected between the sound plate 19 and the mounting block 15.
[0026] When this device is needed to assist in the operation of the cutting table, it is first installed on the key parts of the cutting table via the fixing frame 1. When no external force is applied, the first spring 301 remains in a naturally extended state, stably positioning the slider 3 in the center of the slide bar 2. The housing 10 protects the slide bar 2, slider 3, and first spring 301 from impact, preventing damage to the components. The anti-collision plate 6 forms a protective barrier. When an accidental collision occurs during the operation of the cutting table equipment, the anti-collision plate 6 will be impacted and move towards the center end. The first connecting rod 4 and the second connecting rod 5 push the slider 3 to slide away from the center end. Simultaneously, the slider 3 compresses the first spring 301, and the moving rod 8 moves towards the center end, causing the second spring 9 to compress. The compression of the first spring 301 and the second spring 9 acts as a buffer, thereby reducing the direct impact on the cutting table equipment. If the impact force is too large, the distance between the first sensor 11 and the second sensor 12 shortens. When the first sensor 11 contacts the second sensor 12, the information is transmitted to the alarm 13, which emits a red light to alert the operator that the cutting table equipment may be malfunctioning. As the anti-collision plate 6 moves, the screw 14 moves closer to the center, causing the ball bearing 17 to rotate clockwise around the screw 14, which in turn causes the rotating block 16 to rotate clockwise. Simultaneously, the striking block 18 on the rotating block 16 strikes the sound plate 19, producing a sound. When struck, the sound plate 19 rotates counter-clockwise and then resets via the torsion spring 20. This ensures that the anti-collision plate 6 and the screw 14 emit a sound every certain distance they move, alerting the operator to the extent of the impact on the anti-collision plate 6. When the impact force disappears, the first spring 301 extends, causing the slider 3, the first connecting rod 4, and the second connecting rod 5 to reset. The second spring 9 extends, causing the moving rod 8 to reset. The anti-collision plate 6 and the screw 14 also reset for future use. The screw 14 then drives the rotating block 16 and the ball bearing 17 to rotate counter-clockwise. Simultaneously, the striking block 18 on the rotating block 16 strikes the sound plate 19, producing a sound. This achieves the effect of automatic reset after an impact, enabling reuse and reducing maintenance costs. The device is equipped with the same components on both the left and right sides to ensure that the cutting bed is effectively protected from collisions from multiple directions during operation.
Claims
1. A collision avoidance device for a cutting bed, characterized in that: The device includes a fixed frame (1) and anti-collision units disposed on the front and rear sides of the fixed frame (1). Each anti-collision unit includes a sliding rod (2), a slider (3), a first spring (301), a first connecting rod (4), a second connecting rod (5), and an anti-collision plate (6). Two sliders (3) are slidably connected in the middle of the sliding rod (2). Both sliders (3) are fixedly connected to the fixed frame (1) with the first spring (301). The first spring (301) is sleeved on the sliding rod (2). The two sliders (3) on the right side are rotatably connected to the first connecting rod (4). The two sliders (3) are rotatably connected to the first connecting rod (4) and the second connecting rod (5) respectively. The first connecting rod (4) and the second connecting rod (5) are slidably connected and have a cross structure. An anti-collision plate (6) is rotatably connected between the first connecting rod (4) and the second connecting rod (5) away from the center end.
2. A collision avoidance device for a cutting bed according to claim 1, characterized in that: It also includes a movable rod (8), a sleeve (7), and a second spring (9). Two movable rods (8) are fixedly connected to the two anti-collision plates (6) near the center end, and two sleeves (7) are fixedly connected to the fixed frame (1) away from the center end. The four sleeves (7) correspond to the four movable rods (8) and are slidably connected. The four movable rods (8) are fixedly connected to the fixed frame (1) with a second spring (9).
3. A collision avoidance device for a cutting bed according to claim 2, characterized in that: It also includes a housing (10), and the housing (10) is fixedly connected to both ends of the inner side of the fixing frame (1).
4. A collision avoidance device for a cutting bed according to claim 3, characterized in that: It also includes a first sensor (11), and the two sliders (3) on the right side are fixedly connected to the first sensor (11) near the center end.
5. A collision avoidance device for a cutting bed according to claim 4, characterized in that: It also includes a second sensor (12), and the second sensor (12) is fixedly connected to the right side of the inner side of both housings (10). The first sensor (11) is electrically connected to the second sensor (12).
6. A collision avoidance device for a cutting bed according to claim 5, characterized in that: It also includes an alarm (13), with the alarm (13) mounted on the top of each of the two second sensors (12) through the housing (10), and the first sensor (11) and the second sensor (12) electrically connected to the alarm (13).
7. A collision avoidance device for a cutting bed according to claim 6, characterized in that: It also includes a screw (14), a mounting block (15), a rotating block (16), a ball bearing (17), a striking block (18), a sound plate (19), and a torsion spring (20). Screws (14) are fixedly connected to the two anti-collision plates (6) near their center ends. Mounting blocks (15) are fixedly connected to the center of both the front and rear sides of the fixing frame (1). Screws (14) on the same side pass through mounting blocks (15) and are slidably connected to them. Rotating blocks (16) are rotatably connected to the two mounting blocks (15) near their center ends. The screw (14) passes through the rotating block (16) and is rotatably connected to the rotating block (16). A ball (17) is rotatably connected between the rotating block (16) and the screw (14). The ball (17) is slidably connected to the thread groove of the screw (14). Multiple striking blocks (18) are connected around the rotating block (16). A sound plate (19) is rotatably connected to the right side of the mounting block (15). The striking blocks (18) and the sound plate (19) are in contact and engaged. A torsion spring (20) is fixedly connected between the sound plate (19) and the mounting block (15).