Shoe mold surface damage detection device and detection method

Abstract

The invention relates to the technical field of shoe mold surface damage detection, in particular to a shoe mold surface damage detection device which comprises a supporting frame and a conveying belt, two cameras and a computer are installed on the supporting frame, a fixing frame is fixedly arranged on the supporting frame, a rectangular opening and an opening are formed in the fixing frame, and the conveying belt is arranged on the rectangular opening. A sliding block is connected into the rectangular opening in a sliding mode. A first hydraulic cylinder is fixedly arranged on the surface of one side of the sliding block, and the driving end of the first hydraulic cylinder is fixedly connected with a mounting frame with the cross section in a U shape. According to the invention, a worker does not need to identify whether the surface of the shoe mold has damage traces such as cracks and damages through eyes, the detection efficiency is relatively high, the situation of missing detection or false detection caused by human factors such as artificial fatigue and dim eyes can be effectively avoided, the identification rate is relatively high, the shoe mold with relatively serious damages can be automatically removed, and the labor intensity is reduced. The detection on the surface damage of the shoe mold is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of shoe mold surface damage detection, and in particular to a shoe mold surface damage detection device and a detection method. Background Art

[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to the detection of shoe mold surface damage is also constantly improving. There are various types of shoes on the market, including sports shoes, slippers, rubber shoes and high heels. These different types of shoes need to use shoe molds in the production and processing process. Shoe molds are molds for sports shoes, beach shoes, slippers, rubber shoes and other types of shoes. Due to frequent use, shoe molds will cause cracks, breakage and other damage marks on the surface of the shoe mold.

[0003] At present, when inspecting and processing the damage on the surface of shoe molds, most of them are manual inspections. When the staff use their eyes to identify whether there are cracks, damage and other damage marks on the surface of the shoe mold, the inspection efficiency is low, and human factors such as manual fatigue and dizziness can easily cause missed inspections or false inspections, resulting in a low recognition rate, which is not conducive to the detection of damage on the surface of the shoe mold. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art. At present, when detecting and processing the damage on the surface of a shoe mold, most of the time manual detection is used. When the staff uses their eyes to identify whether there are cracks, damage and other damage marks on the surface of the shoe mold, the detection efficiency is low, and human factors such as manual fatigue and dizziness can easily cause missed detection or false detection, resulting in a low recognition rate, which is not conducive to the detection of damage on the surface of the shoe mold. A shoe mold surface damage detection device and detection method are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A shoe mold surface damage detection device comprises a support frame and a conveyor belt, wherein two cameras and a computer are mounted on the support frame, a fixing frame is fixedly arranged on the support frame, a rectangular opening and an opening are formed on the fixing frame, and a slider is slidably connected in the rectangular opening;

[0007] A first hydraulic cylinder is fixedly arranged on one side surface of the slider, a driving end of the first hydraulic cylinder is fixedly connected to a mounting frame with a concave cross section, a clamping assembly is arranged on the mounting frame, and the clamping assembly includes two bending rods slidably mounted on the mounting frame, and one end of each bending rod is fixedly connected to a clamping plate;

[0008] A second hydraulic cylinder is fixedly installed on the upper surface of the mounting frame, and a driving end of the second hydraulic cylinder is fixedly connected to two symmetrically arranged fixing blocks, each of the fixing blocks is provided with a slot with a right-angled trapezoidal cross-section, and one end of each bending rod away from the clamping plate is fitted with an inclined inner wall of the corresponding slot, and the bottom of the support frame is fixedly connected to two rectangular plates and a support plate with an L-shaped cross-section, and each of the rectangular plates is provided with a sliding component.

[0009] Preferably, each of the bending rods is sleeved with a first spring, one end of the first spring is fixedly connected to the bending rod, and the other end of the first spring is fixedly connected to the mounting frame.

[0010] Preferably, a reciprocating screw is rotatably installed in the rectangular opening, a first motor is fixedly arranged on the fixed frame, a driving end of the first motor is fixedly connected to the reciprocating screw, and the slider is threadedly connected to the reciprocating screw.

[0011] Preferably, a storage box is provided on one side of the support frame, and the storage box is arranged directly below the fixing frame.

[0012] Preferably, each of the sliding components includes a moving block slidably mounted on the rectangular plate, the cross-section of the moving block is L-shaped, a push rod is slidably connected to the moving block, one end of the push rod is connected to a push plate by bolts, and the cross-section of the push plate is T-shaped.

[0013] Preferably, a second motor is fixedly connected to the support plate, a driving end of the second motor is fixedly connected to a rotating shaft, a cam is fixedly connected to the rotating shaft, a rectangular column is slidably connected to the support plate, an upper end of the rectangular column is fixedly connected to a horizontal plate, and the cross-section of the horizontal plate is L-shaped.

[0014] Preferably, rotating rods are hinged on both sides of the rectangular column, and the two rotating rods are hinged to the two moving blocks respectively.

[0015] Preferably, each of the moving blocks is provided with an installation groove, and a limit block is slidably connected in the installation groove. One end of each push rod away from the push plate is fixedly connected to the corresponding limit block, and a limit rod is slidably connected to the limit block. A second spring is sleeved on the limit rod, one end of the second spring is fixedly connected to the limit rod, and the other end of the second spring is fixedly connected to the limit block. A plurality of equidistantly arranged slots are provided on the inner wall of one side of the installation groove.

[0016] Preferably, each of the moving blocks is fixedly connected to a scale, and each of the limiting blocks is fixedly provided with a pointer with one end pointing to the scale.

[0017] The detection method of the shoe mold surface damage detection device comprises the following steps:

[0018] S1: Place the shoe molds on the conveyor belt at equal intervals. The shoe molds can be transported during the conveyor belt conveying process;

[0019] S2: When the shoe mold is transported to the bottom of the two cameras, the two cameras can capture images of the surface of the shoe mold and transmit them to the computer via Ethernet;

[0020] S3: When it is detected that the shoe mold is unqualified, the second hydraulic cylinder, the first motor and the first hydraulic cylinder will start to work in sequence. When the second hydraulic cylinder works, it will drive the two fixed blocks to move vertically upward at the same time. The rubber surface of each clamping plate will be in close contact with the two side surfaces of the shoe mold directly below the mounting frame, so as to achieve the clamping of the shoe mold;

[0021] S4: Then the first motor starts to work and drives the reciprocating screw to rotate, so that the mounting frame and the shoe mold clamped by the two clamps can move up a distance together, so that the shoe mold is separated from the conveyor belt. Finally, the first hydraulic cylinder starts to work and drives the mounting frame to move in the direction close to the fixed frame until the shoe mold is located directly above the storage box. Then the second hydraulic cylinder drives the two fixed blocks to move downward. After the two clamps are separated from the surface of the shoe mold, the shoe mold will automatically fall into the storage box under the action of gravity for collection, so that unqualified shoe molds can be automatically removed;

[0022] S5: The second hydraulic cylinder, the first motor and the first hydraulic cylinder work, so that the mounting frame and each clamping plate move to the initial position.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. When the shoe mold is transported to the bottom of the two cameras, the two cameras can capture images of the shoe mold surface and transmit them to the computer via Ethernet. The computer can automatically detect whether there are damages or cracks on the shoe mold surface using image processing algorithms. The staff does not need to use their eyes to identify whether there are cracks, damages and other damage marks on the shoe mold surface. The detection efficiency is high, and it can effectively avoid missed detection or false detection caused by human factors such as manual fatigue and dizziness. The recognition rate is high, and the shoe molds with more serious damage can be automatically eliminated, which is conducive to the detection of damage on the shoe mold surface;

[0025] 2. During the rotation of the cam, it will squeeze and detach from the lower surface of the horizontal plate many times. During the upward movement of the rectangular column, the angle between the two rotating rods becomes smaller, and the distance between the two moving blocks is reduced. Under the transmission action of the two push rods, the distance between the two push plates is reduced at the same time. When the two push plates approach each other, they can push the shoe mold on the conveyor belt and align the shoe mold so that the shoe mold can be moved to the bottom of the two cameras, thereby better collecting the shoe mold image, which is conducive to the detection of surface damage of the shoe mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the front structure of a shoe mold surface damage detection device proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the top view of a shoe mold surface damage detection device proposed by the present invention;

[0028] Figure 3 It is a right view structural schematic diagram of a shoe mold surface damage detection device proposed by the present invention;

[0029] Figure 4 This is a left-side structural schematic diagram of a shoe mold surface damage detection device proposed by the present invention;

[0030] Figure 5 It is a schematic diagram of the partial structure of the front side of the support plate and the moving block in the present invention;

[0031] Figure 6 It is a schematic diagram of the partial structure of the moving block and the limiting block in the present invention;

[0032] Figure 7 for Figure 3 Schematic diagram of the locally enlarged structure of A in the middle.

[0033] In the figure: 1 support frame, 2 support plate, 3 cross plate, 4 cam, 5 moving block, 6 push rod, 7 conveyor belt, 8 push plate, 9 computer, 10 slider, 11 storage box, 12 reciprocating screw rod, 13 fixed frame, 14 first hydraulic cylinder, 15 clamping plate, 16 mounting frame, 17 bending rod, 18 camera, 19 fixed block, 20 rectangular column, 21 rotating rod, 22 second hydraulic cylinder, 23 first spring, 24 rotating shaft, 25 limit block, 26 scale, 27 pointer, 28 second spring, 29 limit rod, 30 slot, 31 bolt. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Reference Figure 1-Figure 7 A shoe mold surface damage detection device includes a support frame 1 and a conveyor belt 7. Two cameras 18 and a computer 9 are installed on the support frame 1. A fixing frame 13 is fixedly arranged on the support frame 1. The fixing frame 13 is provided with a rectangular opening and an opening. A slider 10 is slidably connected in the rectangular opening. A first hydraulic cylinder 14 is fixedly arranged on the surface of one side of the slider 10. A driving end of the first hydraulic cylinder 14 is fixedly connected to a mounting frame 16 with a concave cross-section. A clamping assembly is arranged on the mounting frame 16. The clamping assembly includes two bending rods 17 slidably installed on the mounting frame 16. One end of each bending rod 17 is fixedly connected to a clamping plate 15.

[0036] A second hydraulic cylinder 22 is fixedly installed on the upper surface of the mounting frame 16, and the driving end of the second hydraulic cylinder 22 is fixedly connected to two symmetrically arranged fixing blocks 19, each fixing block 19 is provided with a slot with a right-angled trapezoidal cross-section, and one end of each bending rod 17 away from the clamping plate 15 is fitted with the inclined inner wall of the corresponding slot, and the bottom of the support frame 1 is fixedly connected to two rectangular plates and a support plate 2 with an L-shaped cross-section, and each rectangular plate is provided with a sliding component.

[0037] Each bending rod 17 is sleeved with a first spring 23, one end of the first spring 23 is fixedly connected to the bending rod 17, and the other end of the first spring 23 is fixedly connected to the mounting frame 16. When the second hydraulic cylinder 22 is working, it will drive the two fixed blocks 19 to move vertically upward at the same time. Under the elastic force of the first spring 23, one end of each bending rod 17 will always be in close contact with the inclined inner wall of the corresponding slot. A reciprocating screw 12 is rotatably installed in the rectangular opening, and a first motor is fixedly arranged on the fixing frame 13. The driving end of the first motor is fixedly connected to the reciprocating screw 12, and the slider 10 is threadedly connected to the reciprocating screw 12. When the first motor starts working and drives the reciprocating screw 12 to rotate, the slider 10 will slide inside the rectangular opening and move along the reciprocating screw 12.

[0038] A storage box 11 is provided on one side of the support frame 1, and the storage box 11 is arranged just below the fixed frame 13. After the shoe mold is located just above the storage box 11, the second hydraulic cylinder 22 drives the two fixed blocks 19 to move downward, and the distance between the two bending rods 17 will become larger. After the two clamping plates 15 are separated from the surface of the shoe mold, the shoe mold will automatically fall into the storage box 11 for collection under the action of gravity. Each sliding assembly includes a moving block 5 slidably mounted on a rectangular plate, and the cross section of the moving block 5 is L-shaped. A push rod 6 is slidably connected to the moving block 5, and one end of the push rod 6 is connected to a push plate 8 by a bolt 31. The cross section of the push plate 8 is T-shaped. A second motor is fixedly connected to the support plate 2, and a driving end of the second motor is fixedly connected to a rotating shaft 24. A cam 4 is fixedly connected to the rotating shaft 24. A rectangular column 20 is slidably connected to the support plate 2, and a cross plate 3 is fixedly connected to the upper end of the rectangular column 20, and the cross plate 3 has an L-shaped cross section.

[0039] The two sides of the rectangular column 20 are hinged with a rotating rod 21, and the two rotating rods 21 are hinged with the two moving blocks 5 respectively. One end of the bolt 31 passes through the T-shaped push plate 8 and is threadedly connected to the push rod 6, so that the push rod 6 and the push plate 8 can be firmly installed together. When the second motor is working, it will drive the rotating shaft 24 to rotate, and the cam 4 will rotate at the same time. During the rotation of the cam 4, it will squeeze and disengage from the lower surface of the cross plate 3 many times, and the cross plate 3 will reciprocate up and down, thereby driving the rectangular column 20 to reciprocate up and down. During the upward movement of the rectangular column 20, the angle between the two rotating rods 21 becomes smaller, and the two moving blocks 5 will slide relative to the two rectangular plates respectively, and the distance between the two moving blocks 5 is reduced. Under the transmission action of the two push rods 6, the distance between the two push plates 8 is reduced at the same time. During the process of the two push plates 8 approaching each other, the shoe mold on the conveyor belt 7 can be pushed to align the shoe mold.

[0040] Each moving block 5 is provided with an installation groove, and a limit block 25 is slidably connected in the installation groove. One end of each push rod 6 away from the push plate 8 is fixedly connected to the corresponding limit block 25. A limit rod 29 is slidably connected to the limit block 25. A second spring 28 is sleeved on the limit rod 29. One end of the second spring 28 is fixedly connected to the limit rod 29, and the other end of the second spring 28 is fixedly connected to the limit block 25. A plurality of slots 30 are equidistantly arranged on the inner wall of one side of the installation groove. The limit rod 29 is pulled outward, and then the limit block 25 is moved. The limit block 25 can adjust the initial position of the push plate 8 during the movement of the limit block 25 inside the installation groove. The moving distance of the limit block 25 can be accurately adjusted according to the position on the scale 26 pointed by the pointer 27. When the position of the push plate 8 is adjusted, the external force applied to the limit rod 29 is removed. Under the elastic force of the second spring 28, one end of the limit rod 29 is engaged with the corresponding slot 30. By adjusting the distance between the two push plates 8, it is convenient for the two push plates 8 to perform subsequent correction processing on shoe molds of different specifications and sizes.

[0041] The detection method of the shoe mold surface damage detection device comprises the following steps:

[0042] S1: placing shoe molds on the conveyor belt 7 at equal intervals. The shoe molds can be conveyed during the conveying process of the conveyor belt 7;

[0043] S2: When the shoe mold is transported to the bottom of the two cameras 18, the two cameras 18 can take images of the surface of the shoe mold and transmit them to the computer 9 via Ethernet;

[0044] S3: When it is detected that the shoe mold is unqualified, the second hydraulic cylinder 22, the first motor and the first hydraulic cylinder 14 will start to work in sequence. When the second hydraulic cylinder 22 works, it will drive the two fixing blocks 19 to move vertically upward at the same time, and the rubber surface of each clamping plate 15 will be in close contact with the two side surfaces of the shoe mold just below the mounting frame 16, so as to achieve the clamping of the shoe mold;

[0045] S4: Then the first motor starts to work and drives the reciprocating screw 12 to rotate, so that the mounting frame 16 and the shoe mold clamped by the two clamping plates 15 can move up a distance together, so that the shoe mold is separated from the conveyor belt 7. Finally, the first hydraulic cylinder 14 starts to work and drives the mounting frame 16 to move in the direction close to the fixed frame 13 until the shoe mold is located directly above the storage box 11. Then the second hydraulic cylinder 22 drives the two fixed blocks 19 to move downward. After the two clamping plates 15 are separated from the surface of the shoe mold, the shoe mold will automatically fall into the storage box 11 under the action of gravity for collection, thereby realizing automatic rejection of unqualified shoe molds.

[0046] S5: The second hydraulic cylinder 22, the first motor and the first hydraulic cylinder 14 work, so that the mounting frame 16 and each clamping plate 15 move to the initial position.

[0047] In the present invention, when in use, the shoe molds (not shown) are placed on the conveyor belt 7 at equal intervals. The conveyor belt 7 can be used to convey the shoe molds during the process of conveying under the driving action of the power component (not shown). When the shoe mold is conveyed to the bottom of the two cameras 18, the two cameras 18 can take images of the surface of the shoe mold and transmit them to the computer 9 via Ethernet. The computer 9 can automatically detect whether there is damage or cracks on the surface of the shoe mold using an image processing algorithm, and then compare it with the defect tolerance of the shoe mold. If it is less than or equal to the defect tolerance, it indicates that it is qualified. If it is greater than the defect tolerance, it indicates that it is unqualified. When it is detected that the shoe mold is unqualified, the subsequent second hydraulic cylinder 22, the first motor and the first hydraulic cylinder 14 will start working in sequence. When the second hydraulic cylinder 22 works, it will drive the two fixed blocks 19 to move vertically upward at the same time. Under the elastic force of the first spring 23, one end of each bending rod 17 will always be in close contact with the corresponding slotted inclined inner wall, and the bending rod 17 will slide relative to the mounting frame 16 at the same time, and the distance between the two bending rods 17 will be reduced.

[0048] When the two clamping plates 15 approach each other, the rubber surface of each clamping plate 15 will be in close contact with the two side surfaces of the shoe mold just below the mounting frame 16, so as to clamp the shoe mold. Then, the first motor starts to work and drives the reciprocating screw rod 12 to rotate, and the slider 10 will slide inside the rectangular opening and move up along the reciprocating screw rod 12, so that the mounting frame 16 and the shoe mold clamped by the two clamping plates 15 can be moved up a distance together, so that the shoe mold is separated from the conveyor belt 7. Finally, the first hydraulic cylinder 14 starts to work and drives the mounting frame 16 to move in the direction close to the fixing frame 13 until the shoe mold is in the position. Just above the storage box 11, the second hydraulic cylinder 22 then drives the two fixed blocks 19 to move downward, and the distance between the two bending rods 17 will become larger. After the two splints 15 are separated from the surface of the shoe mold, the shoe mold will automatically fall into the storage box 11 for collection under the action of gravity. There is no need for staff to use their eyes to identify whether there are cracks, damage and other damage marks on the surface of the shoe mold. The detection efficiency is high, and it can effectively avoid missed detection or false detection caused by human factors such as manual fatigue and dizziness. The recognition rate is high, and shoe molds with more serious damage can be automatically eliminated, which is conducive to the detection of damage on the surface of the shoe mold.

[0049] When the second motor is working, it will drive the shaft 24 to rotate. Under the transmission action of the shaft 24, the cam 4 will rotate at the same time. During the rotation of the cam 4, it will squeeze and separate from the lower surface of the cross plate 3 many times. In the initial state, the surface of the L-shaped cross plate 3 is in contact with the surface of the support plate 2. When the cam 4 squeezes the cross plate 3, the cross plate 3 will move vertically upward. After the cam 4 separates from the cross plate 3, the cross plate 3 will move down to the initial position under the action of gravity. During the rotation of the cam 4, the cross plate 3 will reciprocate up and down, thereby driving the rectangular column 20 to reciprocate up and down. In this process, the two rotors The angle between the moving rods 21 changes at the same time. When the rectangular column 20 moves upward, the angle between the two rotating rods 21 becomes smaller, and the two moving blocks 5 will slide relative to the two rectangular plates respectively, and the distance between the two moving blocks 5 is reduced. Under the transmission action of the two push rods 6, the distance between the two push plates 8 is reduced at the same time. When the two push plates 8 approach each other, they can push the shoe mold on the conveyor belt 7 to align the shoe mold so that the shoe mold can be moved to the bottom of the two cameras 18, thereby better capturing the shoe mold image and facilitating the detection of surface damage of the shoe mold.

[0050] Pull the limit rod 29 outward to make it slide relative to the limit block 25. After the limit rod 29 moves, it will disengage from the slot 30, and then move the limit block 25. During the movement of the limit block 25 inside the installation slot, the initial position of the push plate 8 can be adjusted. According to the position on the scale 26 pointed by the pointer 27, the moving distance of the limit block 25 can be accurately adjusted. When the position of the push plate 8 is adjusted, the external force applied to the limit rod 29 is removed. Under the elastic force of the second spring 28, the limit rod 29 will slide relative to the limit block 25 until one end of the limit rod 29 is engaged with the corresponding slot 30. By adjusting the distance between the two push plates 8, it is convenient for the two push plates 8 to subsequently correct shoe molds of different specifications and sizes.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shoe mold surface damage detection device, comprising a support frame (1) and a conveyor belt (7), characterized in that: Two cameras (18) and a computer (9) are installed on the support frame (1), a fixing frame (13) is fixedly arranged on the support frame (1), a rectangular opening and an opening are provided on the fixing frame (13), and a slider (10) is slidably connected in the rectangular opening; A first hydraulic cylinder (14) is fixedly arranged on one side surface of the sliding block (10); a driving end of the first hydraulic cylinder (14) is fixedly connected to a mounting frame (16) having a concave cross-section; a clamping assembly is arranged on the mounting frame (16); the clamping assembly comprises two bending rods (17) slidably mounted on the mounting frame (16); one end of each bending rod (17) is fixedly connected to a clamping plate (15); A second hydraulic cylinder (22) is fixedly arranged on the upper surface of the mounting frame (16), and a driving end of the second hydraulic cylinder (22) is fixedly connected to two symmetrically arranged fixed blocks (19), each of the fixed blocks (19) is provided with a slot with a right-angle trapezoidal cross section, and one end of each bending rod (17) away from the clamping plate (15) is fitted with the inclined inner wall of the corresponding slot, and the bottom of the support frame (1) is fixedly connected to two rectangular plates and a support plate (2) with an L-shaped cross section, and each of the rectangular plates is provided with a sliding component.

2. A shoe mold surface damage detection device according to claim 1, characterized in that: A first spring (23) is sleeved on each of the bending rods (17); one end of the first spring (23) is fixedly connected to the bending rod (17), and the other end of the first spring (23) is fixedly connected to the mounting frame (16).

3. A shoe mold surface damage detection device according to claim 1, characterized in that: A reciprocating screw rod (12) is rotatably installed in the rectangular opening, a first motor is fixedly arranged on the fixed frame (13), a driving end of the first motor is fixedly connected to the reciprocating screw rod (12), and the slider (10) is threadedly connected to the reciprocating screw rod (12).

4. A shoe mold surface damage detection device according to claim 1, characterized in that: A storage box (11) is provided on one side of the support frame (1), and the storage box (11) is arranged directly below the fixing frame (13).

5. A shoe mold surface damage detection device according to claim 1, characterized in that: Each of the sliding assemblies comprises a moving block (5) slidably mounted on the rectangular plate, the cross section of the moving block (5) being L-shaped, a push rod (6) being slidably connected to the moving block (5), one end of the push rod (6) being connected to a push plate (8) via a bolt (31), and the cross section of the push plate (8) being T-shaped.

6. A shoe mold surface damage detection device according to claim 5, characterized in that: A second motor is fixedly connected to the support plate (2), a driving end of the second motor is fixedly connected to a rotating shaft (24), a cam (4) is fixedly connected to the rotating shaft (24), a rectangular column (20) is slidably connected to the support plate (2), an upper end of the rectangular column (20) is fixedly connected to a transverse plate (3), and a cross section of the transverse plate (3) is arranged in an L shape.

7. A shoe mold surface damage detection device according to claim 6, characterized in that: Rotating rods (21) are hinged on both sides of the rectangular column (20), and the two rotating rods (21) are hinged to the two moving blocks (5) respectively.

8. A shoe mold surface damage detection device according to claim 5, characterized in that: Each of the movable blocks (5) is provided with an installation groove, a limit block (25) is slidably connected in the installation groove, one end of each of the push rods (6) away from the push plate (8) is fixedly connected to the corresponding limit block (25), a limit rod (29) is slidably connected to the limit block (25), a second spring (28) is sleeved on the limit rod (29), one end of the second spring (28) is fixedly connected to the limit rod (29), and the other end of the second spring (28) is fixedly connected to the limit block (25), and a plurality of slots (30) arranged at equal distances are provided on the inner wall of one side of the installation groove.

9. A shoe mold surface damage detection device according to claim 8, characterized in that: Each of the moving blocks (5) is fixedly connected to a scale (26), and each of the limiting blocks (25) is fixedly provided with a pointer (27) with one end pointing to the scale (26).

10. A detection method according to the shoe mold surface damage detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: placing shoe molds at equal intervals on a conveyor belt (7), and the shoe molds can be transported during the conveying process of the conveyor belt (7); S2: When the shoe mold is transported to the bottom of the two cameras (18), the two cameras (18) can capture images of the surface of the shoe mold and transmit them to the computer (9) via Ethernet; S3: When it is detected that the shoe mold is unqualified, the second hydraulic cylinder (22), the first motor and the first hydraulic cylinder (14) will start to work in sequence. When the second hydraulic cylinder (22) works, it will drive the two fixed blocks (19) to move vertically upward at the same time, and the rubber surface of each clamping plate (15) will be in close contact with the two side surfaces of the shoe mold just below the mounting frame (16), so as to achieve the clamping process of the shoe mold; S4: Then the first motor starts to work and drives the reciprocating screw (12) to rotate, thereby enabling the mounting frame (16) and the shoe mold clamped by the two clamping plates (15) to move upward for a distance, so that the shoe mold is separated from the conveyor belt (7). Finally, the first hydraulic cylinder (14) starts to work and drives the mounting frame (16) to move in a direction close to the fixed frame (13) until the shoe mold is located directly above the storage box (11). Then the second hydraulic cylinder (22) drives the two fixed blocks (19) to move downward. After the two clamping plates (15) are separated from the surface of the shoe mold, the shoe mold will automatically fall into the storage box (11) under the action of gravity and be collected, thereby realizing automatic rejection of unqualified shoe molds. S5: The second hydraulic cylinder (22), the first motor and the first hydraulic cylinder (14) work, so that the mounting frame (16) and each clamping plate (15) move to the initial position.

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