Visual positioning and deviation rectifying device for circular knife machine

Abstract

The invention provides a visual positioning and deviation correcting device for a circular knife machine, and relates to the technical field of circular knife machines, the visual positioning and deviation correcting device comprises a rack, an unwinding unit is mounted on the rack, a transverse sliding rail is further arranged on the rack, a moving part is mounted on the transverse sliding rail, a CCD monitoring camera is mounted on the moving part, and the CCD monitoring camera is used for monitoring the deviation condition of a material. The rack is further provided with a controller, the controller is electrically connected with the CCD monitoring camera, the transverse sliding rail is further provided with a deviation rectifying device, and the deviation rectifying device is electrically connected with the controller. The deviation condition of the coiled material is dynamically monitored through the CCD monitoring camera, and manual naked eye observation is replaced; after the controller receives the deviation signal of the camera, the deviation correcting device on the transverse sliding rail can be driven to act automatically, manual starting and adjustment are not needed, through the automatic process of CCD monitoring, controller analysis and deviation correcting device execution, workers do not need to stare at a production line for a long time, the labor intensity is greatly reduced, and the percent of pass of finished products is further improved.

Description

Technical Field

[0001] This invention relates to the field of circular knife machine technology, specifically to a visual positioning and correction device for a circular knife machine. Background Technology

[0002] A rotary die-cutting machine, also known as a rotary pressure die-cutting machine, is a device that uses cylindrical cutters to continuously die-cut roll materials (such as paper, film, self-adhesive labels, metal foil, etc.). The core consists of an upper rotary cutter (die-cutting roller) and a lower rotary cutter (pressure roller or anvil roller) that mesh with each other. After the roll material to be processed enters from the unwinding mechanism, it is cut, creasing, or shaped under the continuous rolling and pressure of the upper and lower rotary cutters. Modern equipment often integrates unwinding, die-cutting, waste removal, and rewinding processes to achieve integrated continuous production.

[0003] During unwinding and conveying, rolled materials are susceptible to lateral shifts due to tension changes and variations in material flatness. Currently, manual monitoring and adjustment are commonly used in the market. First, manual monitoring is not only slow but also inaccurate, requiring workers to keep a close eye on the edges or baselines of the rolled material for extended periods. Visual judgment is prone to delays due to fatigue. Second, it takes several seconds for workers to manually adjust the material after detecting the shift, resulting in a large number of defective products on high-speed production lines and material waste. In addition, the "real-time observation + manual adjustment" model is labor-intensive, requiring workers to maintain high concentration for extended periods, which increases the likelihood of errors. Summary of the Invention

[0004] The present invention provides a visual positioning and correction device for a circular knife machine to solve the problems mentioned in the background art.

[0005] To address the aforementioned technical problems, this invention discloses a visual positioning and correction device for a circular knives machine, comprising a frame, an unwinding unit mounted on the frame, a transverse slide rail on the frame, a movable component mounted on the transverse slide rail, a CCD monitoring camera mounted on the movable component, the CCD monitoring camera being used to monitor the material offset, a controller also being mounted on the frame, the controller being electrically connected to the CCD monitoring camera, and a correction device also being mounted on the transverse slide rail, the correction device being electrically connected to the controller.

[0006] Preferably, the correction device includes a connecting plate, which is fixedly mounted on a transverse slide rail. A fixed cylinder with front and rear openings is fixedly mounted at the lower end of the connecting plate. Movable boxes are slidably connected to the front and rear sides of the fixed cylinder. Movable plates are slidably connected inside the movable boxes. A push rod is fixedly mounted on the side of the two movable plates that are far apart from each other. The push rod slidably extends out of the movable box, and a clamping mechanism is installed at the other end of the push rod.

[0007] Preferably, a symmetrically arranged power motor is installed inside the fixed cylinder. A threaded rod is fixedly connected to the output end of the power motor, and a fixed block is fixedly installed at the other end of the threaded rod. The threaded rod is threadedly connected to the movable box. A drive block is fixedly installed on the push rod. A pressure sensor is installed at the extension position of the push rod and the movable box. The drive block cooperates with the pressure sensor. The pressure sensor is electrically connected to the controller, and the controller is electrically connected to the power motor. A spring is sleeved on the push rod. One end of the spring is fixedly connected to the movable plate, and the other end of the spring is fixedly connected to the movable box.

[0008] Preferably, the clamping mechanism includes an inverted U-shaped plate, a rotating wheel rotatably disposed inside the inverted U-shaped plate, a threaded rod 2 installed on the side wall of the inverted U-shaped plate that is far apart from each other, a gear fixedly disposed at the upper end of the threaded rod 2, a displacement block threadedly connected to the threaded rod 2, a sliding groove provided on the inverted U-shaped plate, the displacement block slidingly connected to the sliding groove, and a rotating wheel 2 rotatably connected to the displacement block, the rotating wheel 2 cooperating with the rotating wheel 1.

[0009] Preferably, a control button is provided on the side wall where the inverted U-shaped plates are close to each other, and an audible and visual alarm is provided on the lower surface of the fixed cylinder. The control button, the audible and visual alarm, and the controller are electrically connected. A rack is fixedly provided on the side wall where the movable boxes are far apart from each other, and the rack and gear are engaged.

[0010] Preferably, an L-shaped connecting rod is provided on the right side of the inverted U-shaped plate, and a rotating roller is rotatably installed on the other end of the L-shaped connecting rod. An extension rod is fixedly connected to the displacement block, and an L-shaped connecting rod is fixedly provided on the extension rod. A rotating roller is rotatably installed on the other end of the L-shaped connecting rod, and the rotating roller cooperates with the rotating roller.

[0011] Preferably, connecting rods are symmetrically fixed on the front side of the fixed cylinder, sleeves are fixed on the connecting rods, sliding rods are slidably arranged inside the sleeves, the sliding rods extend out of the sleeves, and vertical plates are fixedly arranged at the other end of the sliding rods. Hollow mating rollers are rotatably connected to the sides of the two vertical plates that are close to each other. Sliding plates are slidably arranged inside the hollow mating rollers, and connecting rods are fixedly arranged on the sides of the two sliding plates that are close to each other. The connecting rods extend out of the hollow mating rollers.

[0012] Preferably, a positioning plate is slidably arranged inside the sleeve, and the positioning plate is fixedly connected to the slide rod. Several positioning holes are opened on the sleeve. Springs are symmetrically sleeved on the connecting rod. One end of the spring is fixedly connected to the slide plate, and the other end of the spring is fixedly connected to the hollow mating roller.

[0013] Preferably, an L-shaped plate is fixedly installed on the vertical plate, a rotating roller three is rotatably installed on the L-shaped plate, a through groove is opened on the L-shaped plate, a movable block is slidably installed in the through groove, and a rotating roller four is rotatably connected to the movable block.

[0014] Preferably, a threaded rod three is provided on the side wall of the L-shaped plates that are far apart from each other. The threaded rod three passes through the moving block and is threadedly connected to the moving block. A rotating wheel is also fixedly provided at the lower end of the threaded rod three.

[0015] Compared with existing technologies, this invention provides a visual positioning and correction device for a circular knives, which has the following advantages: It dynamically monitors the roll material offset using a CCD monitoring camera, replacing manual visual observation. This not only avoids visual fatigue caused by prolonged worker focus but also captures offset data in real time and synchronizes it to the controller. After receiving the offset signal from the camera, the controller can automatically drive the correction device on the transverse slide rail, eliminating the need for manual adjustment. Compared to the several-second delay between detecting and adjusting the offset manually, the automatic response speed of this device is significantly reduced, decreasing material waste and improving the utilization rate of raw materials. The automated process of "CCD monitoring + controller analysis + correction device execution" replaces the traditional "real-time observation + manual adjustment" mode. Workers no longer need to monitor the production line for extended periods, significantly reducing labor intensity and further improving the finished product qualification rate and overall production line efficiency. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Top view; Figure 3 This is a partial structural diagram of the correction device of the present invention. Figure 1 ; Figure 4 For the present invention Figure 3 Enlarged view of part of the structure; Figure 5 This is a partial structural diagram of the correction device of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the internal structure of the hollow mating roller of the present invention; Figure 7 This is a schematic diagram of the overall structure of the correction device of the present invention.

[0017] In the diagram: 1. Frame; 2. Unwinding unit; 3. CCD monitoring camera; 4. Moving component; 5. Lateral slide rail; 6. Correction device; 7. Connecting plate; 8. Fixed cylinder; 9. Moving box; 10. Threaded rod one; 11. Audible and visual alarm; 12. Power motor; 13. Push rod; 14. Moving plate; 15. Fixed block; 16. Pressure sensor; 17. Spring one; 18. Rack; 19. Inverted U-shaped plate; 20. Gear; 21. Rotating wheel one; 22. Threaded rod two; 23. L-shaped connecting rod one 24. Extending rod; 25. Displacement block; 26. L-shaped connecting rod II; 27. Rotating wheel II; 28. Rotating roller II; 29. ​​Rotating roller I; 30. Point control button; 31. Drive block; 32. Sleeve; 33. Connecting rod; 34. Slide rod; 35. Vertical plate; 36. Rotating roller III; 37. Connecting rod; 38. Hollow mating roller; 39. Rotating roller IV; 40. Moving block; 41. Threaded rod III; 42. L-shaped plate; 43. Positioning plate; 44. Positioning hole; 45. Sliding plate; 46. Spring II. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Example 1: An embodiment of the present invention provides a visual positioning and correction device for a circular knife machine, such as... Figures 1-7 As shown, the device includes a frame 1, an unwinding unit 2 mounted on the frame 1, a transverse slide rail 5 mounted on the frame 1, a movable component 4 mounted on the transverse slide rail 5, a CCD monitoring camera 3 mounted on the movable component 4, the CCD monitoring camera 3 being used to monitor the material offset, a controller mounted on the frame 1, the controller being electrically connected to the CCD monitoring camera 3, and a deviation correction device 6 mounted on the transverse slide rail 5, the deviation correction device 6 being electrically connected to the controller.

[0022] The unwinding unit 2 is rotatably connected to a stabilizing plate (not shown in the figure) on its front side, and the stabilizing plate is fixedly connected to the correction device 6, making the entire structure more stable in operation.

[0023] The working principle and beneficial effects of the above technical solution are as follows: the unwinding unit 2 unwinds the roll material and transports it to the processing area. The CCD monitoring camera 3 installed on the moving part 4 can adjust its position along the transverse slide rail 5 to capture the edge of the roll material or the preset baseline in real time. The monitored offset data (such as offset direction and offset amount) is converted into electrical signals and transmitted to the controller. After receiving the signal from the CCD monitoring camera 3, the controller analyzes and calculates the offset data, generates the corresponding correction command, and sends the command to the correction device 6 on the transverse slide rail 5. The correction device 6 is activated to pull the offset roll material back to the preset processing baseline, thus completing the automatic correction. The CCD monitoring camera 3 dynamically monitors the roll material offset, replacing manual visual observation. This not only avoids visual fatigue caused by prolonged worker focus but also captures offset data in real time and synchronizes it to the controller. After receiving the offset signal from the camera, the controller can automatically activate the correction device 6 on the transverse slide rail, eliminating the need for manual adjustment. Compared to the several-second lag time required for manual adjustment after detecting offset, the automatic response speed of this device is significantly reduced, minimizing material waste and improving the utilization rate of raw materials. Through the automated process of "CCD monitoring + controller analysis + correction device 6 execution," the traditional mode of "real-time observation + manual adjustment" is replaced. Workers no longer need to monitor the production line for extended periods, significantly reducing labor intensity and further improving the finished product qualification rate and overall production line efficiency.

[0024] Example 2: Based on Example 1 above, as follows Figures 3-4 , Figure 7 As shown, the correction device 6 includes a connecting plate 7, which is fixedly mounted on the transverse slide rail 5. A fixed cylinder 8 with front and rear openings is fixedly mounted at the lower end of the connecting plate 7. A movable box 9 is slidably connected to both the front and rear sides of the fixed cylinder 8. A movable plate 14 is slidably connected inside the movable box 9. A push rod 13 is fixedly mounted on the side of the two movable plates 14 that are far apart from each other. The push rod 13 slidably extends out of the movable box 9. A clamping mechanism is installed at the other end of the push rod 13.

[0025] Preferably, the fixed cylinder 8 is equipped with symmetrically arranged power motors 12, the output end of which is fixedly connected to a threaded rod 10, and the other end of the threaded rod 10 is fixedly equipped with a fixing block 15. The threaded rod 10 is threadedly connected to the movable box 9. A drive block 31 is fixedly installed on the push rod 13, and a pressure sensor 16 is installed at the extension position of the push rod 13 and the movable box 9. The drive block 31 cooperates with the pressure sensor 16, the pressure sensor 16 is electrically connected to the controller, and the controller is electrically connected to the power motor 12. A spring 17 is sleeved on the push rod 13, one end of which is fixedly connected to the movable plate 14, and the other end of which is fixedly connected to the movable box 9.

[0026] The working principle and beneficial effects of the above technical solution are as follows: The clamping mechanism clamps the roll material. If the roll material deviates during the conveying process (taking the roll material deviating to the left as an example), the roll material drives the clamping mechanism on the right side to move to the left, pushing the push rod 13 to retract into the moving box 9. The drive block 31 on the push rod 13 moves closer to the pressure sensor 16 and triggers a pressure signal. The pressure sensor 16 transmits the signal to the controller. At the same time, the controller receives the deviation signal from the CCD monitoring camera 3 (the deviation signal and the pressure signal are transmitted to the controller synchronously). The controller starts the power motor 12, which drives the threaded rod 10 to rotate. The threaded rod 10 drives the moving box 9 to slide to the right along the fixed cylinder 8. Under the elastic force of the spring 17 and the movement of the moving box 9, the roll material is gradually pulled back to the preset processing baseline, completing the precise correction. The spring 17 can provide adaptive adjustment when the roll material has slight fluctuations, maintaining the stability of the clamping force.

[0027] Example 3: Based on Example 2 above, as follows Figures 3-4 , Figure 7 As shown, the clamping mechanism includes an inverted U-shaped plate 19, with a rotating wheel 21 rotatably disposed inside the inverted U-shaped plate 19. A threaded rod 22 is installed on one of the opposite sides of the inverted U-shaped plate 19. A gear 20 is fixedly disposed at the upper end of the threaded rod 22. A displacement block 25 is threadedly connected to the threaded rod 22. A sliding groove is provided on the inverted U-shaped plate 19. The displacement block 25 is slidably connected to the sliding groove. A rotating wheel 27 is rotatably connected to the displacement block 25. The rotating wheel 27 cooperates with the rotating wheel 21.

[0028] Preferably, a point control button 30 is provided on the side wall of the inverted U-shaped plates 19 that are close to each other, and an audible and visual alarm 11 is provided on the lower surface of the fixed cylinder 8. The point control button 30, the audible and visual alarm 11 and the controller are electrically connected; a rack 18 is fixedly provided on the side wall of the movable box 9 that is far from each other, and the rack 18 cooperates with the gear 20.

[0029] The working principle and beneficial effects of the above technical solution are as follows: When the movable box 9 slides along the fixed cylinder 8 to adjust its position, the rack 18 on the side wall of the movable box 9 moves synchronously. By meshing with the gear 20 on the inverted U-shaped plate 19, it drives the threaded rod 22 to rotate. The rotation of the threaded rod 22 is converted into the up-and-down sliding of the displacement block 25, which in turn drives the rotating wheel 27 to move closer to the rotating wheel 21, increasing the clamping force on the roll material and preventing the roll material from loosening. When the offset force of the roll material is large (the offset amount is large), the offset force of the roll material drives the rotating wheel 27 and the rotating wheel 21 to move. The rotating wheel 27 and the rotating wheel 21 drive the inverted U-shaped plate 19 to move. The point control button 30 on the inverted U-shaped plate 19... It will contact the moving box 9, and the point control button 30 will transmit the signal to the controller. The controller will immediately activate the audible and visual alarm 11 on the lower surface of the fixed cylinder 8 to issue a warning, stop the operation of the power motor 12, and then make manual adjustments to avoid material scrap and equipment failure, and reduce production risks. Through the linkage structure of rack 18, gear 20 and threaded rod 22, the clamping mechanism can be adapted to roll materials of different thicknesses, without the need for frequent replacement of clamping components, thus expanding the applicability of the equipment.

[0030] Example 4: Based on Examples 1-3, such as Figures 3-4 , Figure 7 As shown, an L-shaped connecting rod 23 is provided on the right side of the inverted U-shaped plate 19. A rotating roller 29 is rotatably installed on the other end of the L-shaped connecting rod 23. An extension rod 24 is fixedly connected to the displacement block 25. An L-shaped connecting rod 26 is fixedly provided on the extension rod 24. A rotating roller 28 is rotatably installed on the other end of the L-shaped connecting rod 26. The rotating roller 28 cooperates with the rotating roller 29.

[0031] The working principle and beneficial effects of the above technical solution are as follows: When the rotating roller 1 21 and the rotating roller 27 clamp the edge of the roll material, the rotating roller 1 29 contacts the surface of the roll material. At the same time, the extension rod 24 on the displacement block 25 drives the L-shaped connecting rod 26 to move synchronously, so that the rotating roller 28 moves closer to the rotating roller 1 29 and forms a pressing fit. During the roll material conveying process, the rotating roller 1 29 and the rotating roller 28 roll synchronously with the roll material, forming auxiliary clamping and guiding on the surface of the roll material, reducing the aggravation of the deviation, and improving the stability of the correction action.

[0032] Example 5: Based on Example 4 above, as follows Figures 5-7 As shown, a connecting rod 33 is symmetrically fixed on the left side of the fixed cylinder 8. A sleeve 32 is fixedly fixed on the connecting rod 33. A sliding rod 34 is slidably installed inside the sleeve 32. The sliding rod 34 extends out of the sleeve 32. A vertical plate 35 is fixedly installed at the other end of the sliding rod 34. Hollow mating rollers 38 are rotatably connected to the sides of the two vertical plates 35 that are close to each other. A sliding plate 45 is slidably installed inside the hollow mating rollers 38. A connecting rod 37 is fixedly installed on the sides of the two sliding plates 45 that are close to each other. The connecting rod 37 extends out of the hollow mating rollers 38.

[0033] Preferably, a positioning plate 43 is slidably disposed inside the sleeve 32, and the positioning plate 43 is fixedly connected to the slide rod 34. A plurality of positioning holes 44 are opened on the sleeve 32. A second spring 46 is symmetrically sleeved on the connecting rod 37. One end of the second spring 46 is fixedly connected to the sliding plate 45, and the other end of the second spring 46 is fixedly connected to the hollow mating roller 38.

[0034] The working principle and beneficial effects of the above technical solution are as follows: Based on the width of the roll material to be processed, the sliding rod 34 is pushed to slide within the sleeve 32, causing the vertical plate 35 and the hollow mating roller 38 to move synchronously, adjusting the distance between the two hollow mating rollers 38. When the distance matches the roll material width, the position of the sliding rod 34 is fixed by the cooperation of the positioning plate 43 with the corresponding positioning hole 44 on the sleeve 32 (e.g., inserting a positioning pin), so that the vertical plate 35 fits against both sides of the roll material. During the roll material conveying process, the hollow mating roller 38 rolls synchronously with the roll material. When the roll material experiences a slight lateral shift due to tension fluctuations or uneven thickness, it will squeeze one side of the vertical plate 35. Since the vertical plate 35 has been limited, it can resist small fluctuations in the roll material. Through the sliding adjustment of the sliding rod 34 within the sleeve 32 and the fixing of the positioning plate 43, the distance between the hollow mating rollers 38 can be quickly adjusted to adapt to roll materials of different widths, making it more practical.

[0035] Example 6: Based on Example 5 above, as follows Figures 5-7 As shown, an L-shaped plate 42 is fixedly installed on the vertical plate 35, and a rotating roller 36 is rotatably installed on the L-shaped plate 42. The horizontal height of the rotating roller 36 is lower than the horizontal height of the hollow mating roller 38. A through groove is opened on the L-shaped plate 42, and a moving block 40 is slidably installed in the through groove. A rotating roller 49 is rotatably connected to the moving block 40.

[0036] Preferably, a threaded rod 41 is provided on one side wall of the L-shaped plate 42 that is far apart from each other. The threaded rod 41 passes through the moving block 40 and is threadedly connected to the moving block 40. A rotating wheel is also fixedly provided at the lower end of the threaded rod 41.

[0037] The working principle and beneficial effects of the above technical solution are as follows: Rotating roller 36 naturally conforms to the lower surface of the roll material and rolls synchronously with the roll material during conveying. Rotating threaded rod 31 (which can be manually adjusted via the lower end wheel) drives moving block 40 to slide up and down, causing rotating roller 49 to approach rotating roller 36 and form a pressing fit with the upper surface of the roll material. Finally, through the upper and lower pressing of rotating roller 36 and rotating roller 49, longitudinal constraint is formed on the roll material. For roll materials of different thicknesses, the height of moving block 40 and rotating roller 49 can be flexibly adjusted by rotating the wheel to drive threaded rod 31 to rotate, ensuring that rotating roller 36 and rotating roller 49 always form a clamping guide on the upper and lower surfaces of the roll material with appropriate pressure. Both of them roll with the roll material, avoiding friction damage to the material surface and reducing wrinkles and other problems. Vertical plate 35 The rotating rollers 36 and 49 restrict the lateral movement of the roll material and limit its vertical movement, keeping it within a stable conveying plane. This makes subsequent correction and die-cutting processes smoother, reduces the start-up frequency and adjustment range of the core correction device, minimizes mechanical wear, and improves overall production stability.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A vision positioning and correction device for a circular knife machine, characterized in that, The machine includes a frame (1), an unwinding unit (2) installed on the frame (1), a transverse slide rail (5) installed on the frame (1), a moving part (4) installed on the transverse slide rail (5), a CCD monitoring camera (3) installed on the moving part (4), the CCD monitoring camera (3) is used to monitor the material offset, a controller is also installed on the frame (1), the controller is electrically connected to the CCD monitoring camera (3), and a correction device (6) is also installed on the transverse slide rail (5), the correction device (6) is electrically connected to the controller.

2. The visual positioning and correction device for a circular knife machine according to claim 1, characterized in that, The correction device (6) includes a connecting plate (7), which is fixedly mounted on the transverse slide rail (5). A fixed cylinder (8) with front and rear openings is fixedly mounted at the lower end of the connecting plate (7). A movable box (9) is slidably connected to both the front and rear sides of the fixed cylinder (8). A movable plate (14) is slidably connected inside the movable box (9). A push rod (13) is fixedly mounted on the side of the two movable plates (14) that are far apart from each other. The push rod (13) extends slidably out of the movable box (9). A clamping mechanism is installed at the other end of the push rod (13).

3. The visual positioning and correction device for a circular knife machine according to claim 2, characterized in that, A symmetrical power motor (12) is installed inside the fixed cylinder (8). The output end of the power motor (12) is fixedly connected to a threaded rod (10). The other end of the threaded rod (10) is fixedly connected to a fixed block (15). The threaded rod (10) is threadedly connected to the moving box (9). A drive block (31) is fixedly installed on the push rod (13). A pressure sensor (16) is installed at the extension position of the push rod (13) and the moving box (9). The drive block (31) cooperates with the pressure sensor (16). The pressure sensor (16) is electrically connected to the controller. The controller is electrically connected to the power motor (12). A spring (17) is sleeved on the push rod (13). One end of the spring (17) is fixedly connected to the moving plate (14). The other end of the spring (17) is fixedly connected to the moving box (9).

4. The visual positioning and correction device for a circular knife machine according to claim 2, characterized in that, The clamping mechanism includes an inverted U-shaped plate (19), a rotating wheel (21) is rotatably arranged inside the inverted U-shaped plate (19), a threaded rod (22) is installed on the side wall of the inverted U-shaped plate (19) that is far apart from each other, a gear (20) is fixedly arranged at the upper end of the threaded rod (22), a displacement block (25) is threadedly connected to the threaded rod (22), a sliding groove is provided on the inverted U-shaped plate (19), the displacement block (25) is slidably connected to the sliding groove, a rotating wheel (27) is rotatably connected to the displacement block (25), and the rotating wheel (27) cooperates with the rotating wheel (21).

5. A vision positioning and correction device for a circular knife machine according to claim 4, characterized in that, A point control button (30) is provided on the side wall of the inverted U-shaped plates (19) that are close to each other. An audible and visual alarm (11) is provided on the lower surface of the fixed cylinder (8). The point control button (30), the audible and visual alarm (11) and the controller are electrically connected. A rack (18) is fixedly provided on the side wall of the movable box (9) that is far away from each other. The rack (18) and the gear (20) cooperate with each other.

6. A vision positioning and correction device for a circular knife machine according to claim 4, characterized in that, An L-shaped connecting rod (23) is provided on the right side of the inverted U-shaped plate (19). A rotating roller (29) is rotatably installed on the other end of the L-shaped connecting rod (23). An extension rod (24) is fixedly connected to the displacement block (25). An L-shaped connecting rod (26) is fixedly provided on the extension rod (24). A rotating roller (28) is rotatably installed on the other end of the L-shaped connecting rod (26). The rotating roller (28) cooperates with the rotating roller (29).

7. A vision positioning and correction device for a circular knife machine according to claim 2, characterized in that, A connecting rod (33) is symmetrically fixed on the left side of the fixed cylinder (8). A sleeve (32) is fixed on the connecting rod (33). A sliding rod (34) is slidably installed inside the sleeve (32). The sliding rod (34) extends out of the sleeve (32). A vertical plate (35) is fixedly installed at the other end of the sliding rod (34). Hollow mating rollers (38) are rotatably connected to the sides of the two vertical plates (35) that are close to each other. A sliding plate (45) is slidably installed inside the hollow mating rollers (38). A connecting rod (37) is fixedly installed on the sides of the two sliding plates (45) that are close to each other. The connecting rod (37) extends out of the hollow mating rollers (38).

8. A vision positioning and correction device for a circular knife machine according to claim 7, characterized in that, A positioning plate (43) is slidably installed inside the sleeve (32). The positioning plate (43) is fixedly connected to the slide rod (34). Several positioning holes (44) are opened on the sleeve (32). Springs (46) are symmetrically sleeved on the connecting rod (37). One end of the springs (46) is fixedly connected to the sliding plate (45), and the other end of the springs (46) is fixedly connected to the hollow mating roller (38).

9. A vision positioning and correction device for a circular knife machine according to claim 8, characterized in that, An L-shaped plate (42) is fixedly installed on the vertical plate (35). A rotating roller three (36) is rotatably installed on the L-shaped plate (42). The horizontal height of the rotating roller three (36) is lower than the horizontal height of the hollow mating roller (38). A through groove is opened on the L-shaped plate (42). A moving block (40) is slidably installed in the through groove. A rotating roller four (39) is rotatably connected to the moving block (40).

10. A vision positioning and correction device for a circular knife machine according to claim 9, characterized in that, A threaded rod (41) is provided on one side wall of the L-shaped plate (42) that is far apart from each other. The threaded rod (41) passes through the moving block (40) and is threadedly connected to the moving block (40). A rotating wheel is also fixedly provided at the lower end of the threaded rod (41).

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