Formed foil defect detection device

Abstract

The invention discloses a formed foil defect detection device and relates to the technical field of formed foil production, the formed foil defect detection device comprises a foil collecting plate and further comprises an adjusting device, a placing frame is fixedly installed at the top of the foil collecting plate, a rotating rod is rotatably installed on the surface of the placing frame, a foil collecting groove is formed in the top of the foil collecting plate, and a stabilizing rod is fixedly installed on the inner wall of the foil collecting groove; foil collecting equipment is slidably mounted on the circumferential surface of the stabilizing rod, a limiting frame is fixedly mounted at the top of a foil collecting plate, an L-shaped rod is slidably mounted on the inner wall of the limiting frame, two fixing plates move oppositely to drive two sliding blocks A to move, and the two sliding blocks A move to adjust the length of a bearing rod so as to adapt to formed foils with different widths. And by adjusting the length of the bearing rod, it can be ensured that the bearing rod is matched with the width of the formed foil, the situation that the foil is bent or deformed in the winding process, so that distortion or deviation occurs when the detection mechanism detects is prevented, and the detection accuracy of the detection mechanism is improved.

Description

Technical Field

[0001] The invention relates to the technical field of chemical foil production, in particular to a chemical foil defect detection device. Background Art

[0002] The defect detection device of formed foil usually consists of a foil rolling device, a sensor and a conveying system.

[0003] The patent with the patent announcement number CN219016113U relates to a system for detecting defects in the appearance of formed foil, including a detection box, through holes for the formed foil to pass through are provided at both ends of the detection box, a winding roller for winding the formed foil is provided on the outside of the detection box, a first image component, a second image component and a first light source component are provided on the top of the detection box, the first light source component is arranged on one side of the first image component and is flush with it, a second light source component, a third light source component and a third image component are provided below the formed foil in the detection box, the third light source component is arranged on one side of the third image component and is flush with it, the second light source component is located directly below the second image component, the first image component, the second image component and the third image component are connected to an industrial computer through a data line, the first light source component, the second light source component and the third light source component are connected to a light source controller, and the light source controller is connected to the industrial computer through a serial port line. The detection system can automatically inspect and identify defects on the surface of the formed foil without adversely affecting the original production line.

[0004] In the above patent, the first light source assembly, the second light source assembly and the third light source assembly are connected to the light source controller, and the light source controller is connected to the industrial computer through a serial port line. The detection system can automatically inspect and identify defects on the surface of the chemical foil, and has no adverse effect on the original production line. However, it is difficult to effectively support chemical foils of different widths. If chemical foils of different widths are not effectively supported when passing through the detection device, they will be deformed or uneven. This deformation will cause the defects on the foil surface to be distorted or offset when the sensor detects, resulting in inaccurate detection results. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device for detecting defects in formed foil, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a defect detection device for formed foil, comprising a foil collecting plate and an adjusting device, wherein a placing rack is fixedly installed on the top of the foil collecting plate, a rotating rod is rotatably installed on the surface of the placing rack, a foil collecting groove is opened on the top of the foil collecting plate, a stabilizing rod is fixedly installed on the inner wall of the foil collecting groove, a foil collecting device is slidably installed on the circumferential surface of the stabilizing rod, a limiting frame is fixedly installed on the top of the foil collecting plate, an L-shaped rod is slidably installed on the inner wall of the limiting frame, a return spring is arranged between the limiting frame and the L-shaped rod, a groove plate is fixedly installed on the surface of the limiting frame, and a detection mechanism is fixedly installed on the top of the foil collecting plate, wherein the adjusting device comprises a displacement rod, a sliding rod, a sliding frame, a fixed plate, a slider A, a load-bearing rod, a servo motor, a servo plate, a servo rod, a fixed block and a spring, two servo rods move away from each other to drive two sliding rods to move away from each other, and two The sliding rods move back to back and drive the two fixed plates to move back to back. The two fixed plates move back to back and drive the two sliders A to move. The movement of the two sliders A adjusts the length of the load-bearing rod to adapt to different widths of chemical foils. An operation groove is provided on the top of the foil collecting plate. The displacement rod is fixedly installed on the inner wall of the operation groove. The displacement rod is slidably installed on the circumferential surface of the displacement rod. The slide frame is slidably installed on the surface of the slide rod. The fixed plate is fixedly installed on the surface of the slide frame. A fixing groove is provided on the surface of the fixed plate. The slider A is slidably installed on the inner wall of the fixing groove. The load-bearing rod is slidably installed on the surface of the slider A. The servo motor is fixedly installed on the top of the foil collecting plate. The servo plate is fixedly installed on the output end of the servo motor. The servo rod is hingedly installed on the surface of the servo plate. The end of the servo rod away from the servo motor is hinged to the sliding rod. The fixed block is fixedly installed on the surface of the slider A, and the spring is fixed on the surface of the fixed plate.

[0007] According to the above technical solution, a No. 1 spring is arranged between the displacement rod and the slide rod, a No. 2 spring is arranged between the slider A and the load-bearing rod, the spring piece contacts the fixed block, the load-bearing rod contacts the L-shaped rod, and the vibration of the slider A drives the load-bearing rod to resonate together. According to the above technical solution, it also includes a protection device and a safeguard device, wherein the protection device includes a slide plate, a slider B, a detection rod, a horizontal plate and a button, the slide plate moves downward to contact the button and press the button, and the button is driven to stop the foil collecting device after being pressed by the slide plate, the slide plate is slidably mounted on the surface of the slider bar, a detection hole is opened on the surface of the slide plate, the slider B is slidably mounted on the inner wall of the detection hole, the detection rod is slidably mounted on the surface of the slider B, the horizontal plate is fixedly mounted on the surface of the slider bar, and the button is fixedly mounted on the top of the horizontal plate.

[0008] According to the above technical solution, a push rod slides through the surface of the slider B, a push plate is fixedly installed on the circumferential surface of the push rod, an arc block is fixedly installed on the surface of the slide plate, and the end of the push rod close to the push rod is set as an inclined surface. The detection rod is in contact with the groove plate, and the push rod moves in a direction away from the groove plate, driving the push plate to move to correct the position of the formed foil.

[0009] According to the above technical solution, a No. 3 spring is arranged between the slide plate and the slide rod, a No. 4 spring is arranged between the slider B and the detection rod, the button is electrically connected to the foil collecting device, and a No. 5 spring is arranged between the push rod and the slider B. The slide plate can be reset by the No. 3 spring, the detection rod can be reset by the No. 4 spring, and the push rod can be reset by the No. 5 spring.

[0010] According to the above technical scheme, the protective device includes a limit groove, a placement frame, a limit rod, a protective rod, a hollow rod and a vertical rod. After the limit of the sliding frame is released, the sliding frame is manually pulled to move, and the movement of the sliding frame drives the fixed plate to move. The movement of the fixed plate drives the slider A to move, and the movement of the slider A drives the load-bearing rod to move to adjust the height of the load-bearing rod. A limit groove is provided on the surface of the sliding rod, the placement frame is fixedly installed on the surface of the sliding frame, the limit rod slides through the surface of the placement frame, a protective hole is provided on the surface of the placement frame, the protective rod is slidably installed on the inner wall of the protective hole, the hollow rod is fixedly installed on the bottom of the sliding frame, the vertical rod is slidably installed on the inner wall of the hollow rod, and the limit rod surface is provided with a protective groove.

[0011] According to the above technical solution, the limit rod is in contact with the limit groove, a No. 6 spring is provided between the placement frame and the limit rod, and the protection rod is in contact with the protection groove. The protection rod is first manually pulled to move to release the limit on the limit rod.

[0012] According to the above technical solution, a No. 7 spring is arranged between the protection rod and the protection hole, and the vertical rod is in contact with the top of the slide plate, and the No. 7 spring can drive the protection rod to reset.

[0013] According to the above technical solution, The present invention provides a defect detection device for formed foil, which has the following beneficial effects: (1) The defect detection device for formed foil drives two sliders A to move by moving two fixed plates in opposite directions. The movement of the two sliders A adjusts the length of the load-bearing rod to adapt to formed foils of different widths. By adjusting the length of the load-bearing rod, it can be ensured that it matches the width of the formed foil, thereby providing more stable and effective support, helping to prevent the foil from bending or deforming during the winding process, which may cause distortion or offset during sensor detection, thereby improving the detection accuracy of the detection mechanism. The fixed block rotates and rubs against the spring to generate vibration. The vibration of the fixed block drives the slider A to vibrate. The vibration of the slider A drives the load-bearing rod to resonate together. The vibration of the load-bearing rod can disperse the static charge on the surface of the formed foil, thereby reducing the accumulation and accumulation of static electricity. Reducing static electricity can reduce the problem of adsorption of dust and other impurities, thereby further improving the detection accuracy of the detection mechanism.

[0014] (2) In the defect detection device for chemical foil, if the tension on the chemical foil is too great and the chemical foil is about to be broken, the slide moves downward to contact and press the button. After the button is pressed by the slide, the foil collecting device is driven to stop working. When the chemical foil is broken, it may cause damage to the products currently being produced or unstable quality. By pausing the foil collecting device in time, the broken foil can be prevented from continuing to enter the winding process, thereby reducing the generation of waste and improving the product winding quality. At the same time, the push rod moves in the direction away from the groove plate to drive the push plate to move to correct the position of the chemical foil. By correcting the position of the chemical foil in time, the generation of waste caused by position offset or misalignment can be reduced, thereby reducing the waste rate.

[0015] (3) When the height of the load-bearing rod needs to be adjusted in the defect detection device for chemical foil, the protective rod is first manually pulled to move away from the load-bearing rod. The protective rod moves out of contact with the protective groove to release the limit on the limit rod. The anti-mistouch device can ensure that the height of the load-bearing rod remains stable during the production process, which helps to maintain the consistency of tension distribution and ensure that each chemical foil is subjected to similar tension during the processing, thereby improving the quality and consistency of product winding. At the same time, the movement of the fixed plate drives the movement of the slider A, and the movement of the slider A drives the movement of the load-bearing rod to adjust the height of the load-bearing rod. By adjusting the height of the load-bearing rod, the contact pressure between the foil and the load-bearing rod can be adjusted, thereby affecting the distribution and stability of the tension. Appropriate tension control helps to ensure the tightness and flatness of the foil during the winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the position structure of the slide bar and the slide frame of the present invention; Figure 3 This is a schematic diagram of the position structure of the hollow rod and the vertical rod of the present invention; Figure 4It is a schematic diagram of the position structure of the servo plate and the servo rod of the present invention; Figure 5 For the present invention Figure 2 A schematic diagram of the structure enlargement of part A; Figure 6 For the present invention Figure 3 A schematic diagram of the structure of part B in the middle is enlarged; Figure 7 For the present invention Figure 2 Schematic diagram of the enlarged structure of part C in the middle.

[0017] In the figure: 1. foil collecting plate; 2. placement rack; 3. rotating rod; 4. stabilizing rod; 5. foil collecting device; 6. displacement rod; 7. sliding rod; 8. sliding frame; 9. fixing plate; 10. sliding block A; 11. load-bearing rod; 12. servo motor; 13. servo plate; 14. servo rod; 15. fixing block; 16. spring; 171. sliding plate; 172. sliding block B; 173. detecting rod; 174. pushing rod; 175. pushing plate; 176. arc block; 177. horizontal plate; 178. button; 181. limiting groove; 182. placement frame; 183. limiting rod; 184. protecting rod; 185. hollow rod; 186. vertical rod; 19. detecting mechanism. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-5, one embodiment of the present invention is: a defect detection device for formed foil, comprising a foil collecting plate 1, and also comprising an adjusting device, wherein a placing rack 2 is fixedly installed on the top of the foil collecting plate 1, a rotating rod 3 is rotatably installed on the surface of the placing rack 2, a foil collecting groove is opened on the top of the foil collecting plate 1, a stabilizing rod 4 is fixedly installed on the inner wall of the foil collecting groove, a foil collecting device 5 is slidably installed on the circumferential surface of the stabilizing rod 4, a limiting frame is fixedly installed on the top of the foil collecting plate 1, an L-shaped rod is slidably installed on the inner wall of the limiting frame, a return spring is arranged between the limiting frame and the L-shaped rod, a groove plate is fixedly installed on the surface of the limiting frame, and a detection mechanism 19 is fixedly installed on the top of the foil collecting plate 1, wherein the adjusting device comprises a displacement rod 6, a sliding rod 7, a sliding frame 8, a fixing plate 9, a sliding block A10, a load-bearing rod 11, a servo motor 12, a servo plate 13, a servo rod 14, a fixing block 15 and a spring 16, an operating groove is opened on the top of the foil collecting plate 1, the displacement rod 6 is fixedly installed on the inner wall of the operating groove, the sliding rod 7 is slidably mounted on the circumferential surface of the displacement rod 6, the slide frame 8 is slidably mounted on the surface of the slide rod 7, the fixed plate 9 is fixedly mounted on the surface of the slide frame 8, a fixed groove is opened on the surface of the fixed plate 9, the slider A10 is slidably mounted on the inner wall of the fixed groove, the load-bearing rod 11 is slidably mounted on the surface of the slider A10, the servo motor 12 is fixedly mounted on the top of the foil collecting plate 1, the servo plate 13 is fixedly mounted on the output end of the servo motor 12, the servo rod 14 is hingedly mounted on the surface of the servo plate 13, the end of the servo rod 14 away from the servo motor 12 is hinged to the slide rod 7, the fixed block 15 is fixedly mounted on the surface of the slider A10, and the spring piece 16 is fixed on the surface of the fixed plate 9. By adjusting the length of the load-bearing rod 11, it can be ensured that it matches the width of the chemical foil, thereby providing more stable and effective support, which helps to prevent the foil from bending or deforming during the winding process, causing distortion or deviation during detection by the detection mechanism 19, and improves the detection accuracy of the detection mechanism.

[0020] A No. 1 spring is arranged between the displacement rod 6 and the sliding rod 7, a No. 2 spring is arranged between the slider A10 and the load-bearing rod 11, the spring piece 16 is in contact with the fixed block 15, and the load-bearing rod 11 is in contact with the L-shaped rod. The vibration of the slider A10 drives the load-bearing rod 11 to resonate together, reducing static electricity and reducing the problem of adsorbing dust and other impurities, thereby improving the efficiency of further winding.

[0021] When the embodiment is working, when the length of the load-bearing rod 11 needs to be adjusted to adapt to the formed foils of different widths, the servo motor 12 drives the servo plate 13 to move toward the direction close to the displacement rod 6, and the movement of the servo plate 13 drives the two servo rods 14 to move away from each other, and the two servo rods 14 move away from each other to drive the two slide bars 7 to move away from each other, and the two slide bars 7 move away from each other to drive the two fixed plates 9 to move away from each other, and the two fixed plates 9 move away from each other to drive the two sliders A10 to move, and the movement of the two sliders A10 adjusts the length of the load-bearing rod 11. The formed foil is adjusted to suit different widths. After the length of the load-bearing rod 11 is adjusted to a suitable position, the formed foil is connected to the foil collecting device 5 and the foil collecting device 5 is operated to reel the formed foil. When the formed foil is reeled, the load-bearing rod 11 is moved to rotate. The rotation of the load-bearing rod 11 drives the slider A10 to rotate. The rotation of the slider A10 drives the fixed block 15 to rotate. The fixed block 15 rotates and contacts and rubs with the spring piece 16 to generate vibration. The vibration of the fixed block 15 drives the slider A10 to vibrate. The vibration of the slider A10 drives the load-bearing rod 11 to resonate together.

[0022] See also Figure 1-7 On the basis of the above embodiment, another embodiment of the present invention further includes a protection device and a safeguard device, the protection device includes a slide plate 171, a slider B172, a detection rod 173, a cross plate 177 and a button 178, the slide plate 171 is slidably mounted on the surface of the slider 7, a detection hole is opened on the surface of the slide plate 171, the slider B172 is slidably mounted on the inner wall of the detection hole, the detection rod 173 is slidably mounted on the surface of the slider B172, the cross plate 177 is fixedly mounted on the surface of the slider 7, and the button 178 is fixedly mounted on the top of the cross plate 177. When the formed foil is broken, it may cause damage to the product currently in production or unstable quality. By pausing the foil collection equipment in time, the broken foil can be prevented from continuing to enter the winding process.

[0023] A push rod 174 slides through the surface of the slider B172, a push plate 175 is fixedly installed on the circumferential surface of the push rod 174, an arc block 176 is fixedly installed on the surface of the slide plate 171, and one end of the push rod 174 close to the arc block 176 is set as an inclined surface, and the detection rod 173 is in contact with the groove plate. By timely correcting the position of the formed foil, the generation of waste caused by position offset or misalignment can be reduced, thereby reducing the waste rate.

[0024] A No. 3 spring is arranged between the slide plate 171 and the slide rod 7, a No. 4 spring is arranged between the slider B172 and the detection rod 173, the button 178 is electrically connected to the foil collecting device 5, and a No. 5 spring is arranged between the push rod 174 and the slider B172. The No. 3 spring can drive the slide plate 171 to reset, the No. 4 spring can drive the detection rod 173 to reset, and the No. 5 spring can drive the push rod 174 to reset.

[0025] The protective device includes a limit groove 181, a placement frame 182, a limit rod 183, a protection rod 184, a hollow rod 185 and a vertical rod 186. The limit groove 181 is opened on the surface of the sliding rod 7, the placement frame 182 is fixedly installed on the surface of the sliding frame 8, the limit rod 183 slides through the surface of the placement frame 182, the surface of the placement frame 182 is provided with a protection hole, the protection rod 184 is slidably installed on the inner wall of the protection hole, the hollow rod 185 is fixedly installed at the bottom of the sliding frame 8, the vertical rod 186 is slidably installed on the inner wall of the hollow rod 185, and the surface of the limit rod 183 is provided with a protection groove. By adjusting the height of the load-bearing rod 11, the contact pressure between the foil and the load-bearing rod 11 can be adjusted. Appropriate tension control helps to ensure the tightness and flatness of the foil during the winding process.

[0026] The limit rod 183 is in contact with the limit groove 181, a No. 6 spring is arranged between the placement frame 182 and the limit rod 183, and the protection rod 184 is in contact with the protection groove. First, manually pull the protection rod 184 to move and release the limit on the limit rod 183. Through the anti-mistouch device, the height of the load-bearing rod 11 can be ensured to remain stable during the production process, which helps to maintain the consistency of the tension distribution, thereby improving the quality and consistency of product winding.

[0027] A No. 7 spring is arranged between the protection rod 184 and the protection hole, and the vertical rod 186 is in contact with the top of the slide plate 171, and the No. 7 spring can drive the protection rod 184 to reset.

[0028] When the present embodiment is working, the servo plate 13 moves to drive the two servo rods 14 to move in opposite directions, the two servo rods 14 move in opposite directions to drive the two slide bars 7 to move in opposite directions, the two slide bars 7 move in opposite directions to drive the two 171 slide plates to move in opposite directions, the two 171 slide plates move in opposite directions to drive the two sliders B172 to move in opposite directions, the two sliders B172 move in opposite directions to synchronously adjust the length of the detection rod 173 to detect the tension of the formed foils of different widths. If the tension of the formed foil is too large to break the formed foil, the surface of the detection rod 173 loses the support of the formed foil when the rolled formed foil is broken by the foil collection device 5. After the surface of the detection rod 173 loses the support, the detection rod 173 moves downward under the action of its own gravity, and the detection rod 173 moves downward. The sliding plate 171 is driven to move downward, and the sliding plate 171 moves downward to contact and press the button 178. After the button 178 is pressed by the sliding plate 171, the foil collecting device 5 is driven to stop the operation. At the same time, when the formed foil and the foil collecting device 5 are docked and installed, the formed foil contacts the surface of the detection rod 173 and rubs the detection rod 173 to drive the detection rod 173 to rotate. The rotation of the detection rod 173 drives the slider B172 to rotate. The rotation of the slider B172 drives the push rod 174 to rotate. The push rod 174 rotates and contacts the arc block 176, and is squeezed by the reaction force of the arc block 176 and moves in the direction away from the groove plate. The push rod 174 moves in the direction away from the groove plate and drives the push plate 175 to move to correct the position of the formed foil.

[0029] When the height of the load-bearing rod 11 needs to be adjusted, first manually pull the protection rod 184 to move away from the load-bearing rod 11, and the protection rod 184 moves out of contact with the protection groove to release the limit on the limit rod 183. After the limit of the limit rod 183 is released, manually pull the limit rod 183 to move away from the slide bar 7, and the limit rod 183 moves out of contact with the limit groove 181 and releases the limit on the slide frame 8. After the limit of the slide frame 8 is released, manually pull the slide frame 8 to move, and the movement of the slide frame 8 drives the fixed plate 9 to move, and the movement of the fixed plate 9 drives the slider A10 to move, and the slider A 10 moves and drives the load-bearing rod 11 to move to adjust the height of the load-bearing rod 11. At the same time, if the sliding frame 8 accidentally slides down when adjusting the height of the load-bearing rod 11, it will drive the load-bearing rod 11 to move downward quickly. The load-bearing rod 11 moves downward quickly and drives the hollow rod 185 to move downward. The hollow rod 185 moves downward and drives the vertical rod 186 to move downward. The vertical rod 186 moves downward to squeeze the slide plate 171 to move downward. The slide plate 171 moves downward and contacts the button 178 and presses the button 178. After the button 178 is pressed by the slide plate 171, it drives the foil collecting device 5 to stop operating.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A defect detection device for formed foil, comprising a foil collecting plate (1), characterized in that: It also includes regulating devices, protective devices and guards; The top of the foil collecting plate (1) is fixedly mounted with a placing rack (2), the surface of the placing rack (2) is rotatably mounted with a rotating rod (3), the top of the foil collecting plate (1) is provided with a foil collecting groove, the inner wall of the foil collecting groove is fixedly mounted with a stabilizing rod (4), the circumferential surface of the stabilizing rod (4) is slidably mounted with a foil collecting device (5), the top of the foil collecting plate (1) is fixedly mounted with a limiting frame, the inner wall of the limiting frame is slidably mounted with an L-shaped rod, a return spring is arranged between the limiting frame and the L-shaped rod, a groove plate is fixedly mounted on the surface of the limiting frame, and the top of the foil collecting plate (1) is fixedly mounted with a detection mechanism (19); The adjusting device comprises a displacement rod (6), a slide rod (7), a slide frame (8), a fixed plate (9), a slider A (10), a load-bearing rod (11), a servo motor (12), a servo plate (13), a servo rod (14), a fixed block (15) and a spring (16); an operating groove is provided on the top of the foil collecting plate (1); the displacement rod (6) is fixedly mounted on the inner wall of the operating groove; the slide rod (7) is slidably mounted on the circumferential surface of the displacement rod (6); the slide frame (8) is slidably mounted on the surface of the slide rod (7); the fixed plate (9) is fixedly mounted on the surface of the slide frame (8); and the surface of the fixed plate (9) is A fixing groove is provided, the slider A (10) is slidably mounted on the inner wall of the fixing groove, the load-bearing rod (11) is slidably mounted on the surface of the slider A (10), the servo motor (12) is fixedly mounted on the top of the foil collecting plate (1), the servo plate (13) is fixedly mounted on the output end of the servo motor (12), the servo rod (14) is hingedly mounted on the surface of the servo plate (13), one end of the servo rod (14) away from the servo motor (12) is hingedly connected to the sliding rod (7), the fixing block (15) is fixedly mounted on the surface of the slider A (10), and the spring sheet (16) is fixed on the surface of the fixing plate (9); The protection device comprises a slide plate (171), a slider B (172), a detection rod (173), a cross plate (177) and a button (178); the slide plate (171) is slidably mounted on the surface of the slider (7); a detection hole is provided on the surface of the slide plate (171); the slider B (172) is slidably mounted on the inner wall of the detection hole; the detection rod (173) is slidably mounted on the surface of the slider B (172); the cross plate (177) is fixedly mounted on the surface of the slider (7); and the button (178) is fixedly mounted on the top of the cross plate (177); A push rod (174) is slidably penetrated through the surface of the slider B (172), a push plate (175) is fixedly mounted on the circumferential surface of the push rod (174), an arc surface block (176) is fixedly mounted on the surface of the slide plate (171), one end of the push rod (174) close to the arc surface block (176) is set as an inclined surface, and the detection rod (173) is in contact with the groove plate; A No. 3 spring is provided between the slide plate (171) and the slide bar (7), a No. 4 spring is provided between the slider B (172) and the detection bar (173), the button (178) is electrically connected to the foil collecting device (5), and a No. 5 spring is provided between the push rod (174) and the slider B (172); A first spring is provided between the displacement rod (6) and the slide rod (7), a second spring is provided between the slide block A (10) and the load-bearing rod (11), the spring sheet (16) is in contact with the fixed block (15), and the load-bearing rod (11) is in contact with the L-shaped rod; The protective device comprises a limit groove (181), a placement frame (182), a limit rod (183), a protection rod (184), a hollow rod (185) and a vertical rod (186); the limit groove (181) is formed on the surface of the sliding rod (7); the placement frame (182) is fixedly mounted on the surface of the sliding frame (8); the limit rod (183) slides through the surface of the placement frame (182); a protection hole is formed on the surface of the placement frame (182); the protection rod (184) is slidably mounted on the inner wall of the protection hole; the hollow rod (185) is fixedly mounted on the bottom of the sliding frame (8); the vertical rod (186) is slidably mounted on the inner wall of the hollow rod (185); and the limit rod (183) has a protection groove on its surface.

2. A defect detection device for formed foil according to claim 1, characterized in that: The limiting rod (183) contacts the limiting groove (181), a No. 6 spring is provided between the placement frame (182) and the limiting rod (183), and the protection rod (184) contacts the protection groove.

3. The defect detection device for chemically formed foil according to claim 1, characterized in that: A No. 7 spring is provided between the protection rod (184) and the protection hole, and the vertical rod (186) is in contact with the top of the slide plate (171).

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