Detection equipment for front and back surfaces of synthetic leather finished product

Abstract

A detection device for the front and back surfaces of a synthetic leather finished product comprises a control machine, a synthetic leather fixing unit and a detection unit, the synthetic leather fixing unit and the detection unit are both connected with the control machine, the synthetic leather fixing unit comprises an overturning frame and a clamp module, and the clamp module comprises an overturning plate and a clamp set arranged on the overturning plate. A hollow opening corresponding to the back face of a synthetic leather finished product is formed in the middle of the turnover plate, the two ends of the turnover plate are in transmission connection with the turnover frame, the turnover frame is used for movably turning over the turnover plate, and the clamp set is composed of a plurality of positioning clamps used for fixing the synthetic leather finished product. The detection unit comprises a horizontal displacement device, a mechanical arm and a detection head arranged on the mechanical arm, the horizontal displacement device is used for controlling the mechanical arm to move in the length direction of the turnover plate, the mechanical arm is used for controlling the detection head to correspondingly scan a synthetic leather finished product area, and the detection head is used for scanning and detecting a synthetic leather finished product.

Description

Technical Field

[0001] The invention relates to the field of synthetic leather testing equipment, in particular to a testing equipment for the front and back surfaces of finished synthetic leather products. Background Art

[0002] In the existing products, the finished synthetic leather products are formed by bonding the formed synthetic leather to the frame, and the corresponding finished synthetic leather products are formed by the support of the frame. Since the finished synthetic leather products are coated with the synthetic leather on the surface of the corresponding frame, the coated synthetic leather surface is not a completely flat structure, but often a complex structure with both flat and curved surfaces. The existing surface inspection devices for the synthetic leather often use a fixed position detection head for video inspection, and the curved surface structure and the back of the finished synthetic leather products cannot be visually inspected by the detection head.

[0003] In the prior art, a device for detecting the degree of curing of the surface of synthetic leather disclosed in application number 202322145388.1 relates to the field of synthetic leather curing test technology, including a test bench, one side of which is fixedly connected to a support frame. In the utility model, when the curing of synthetic leather is detected, the synthetic leather to be detected is first placed on the test bench, and then one side of the synthetic leather is placed in a fixed groove, and then one side of the synthetic leather is firmly adsorbed and clamped in the fixed groove by a fixed magnetic block, and then a smooth metal sheet is placed on the synthetic leather laid flat on the test bench, and then the pneumatic cylinder is started to push the extrusion plate down, and at the same time, the heating plate is started to heat the synthetic leather, and the air flow is blown to the lower surface of the synthetic leather through the blowing hole by the fan. When the synthetic leather swings, if the metal sheet falls off, it means that the surface of the synthetic leather is cured, otherwise the metal sheet is adhered to the top, which means that the surface of the synthetic leather is not completely cured. This structure cannot detect the front and back sides of the synthetic leather. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a detection device for the front and back surfaces of synthetic leather products: A detection device for the front and back surfaces of a finished synthetic leather product, comprising a control machine, a synthetic leather fixing unit and a detection unit both connected to the control machine, the synthetic leather fixing unit comprising a turning frame and a clamp module, the clamp module comprising a turning plate and a clamp group arranged on the turning plate, a hollow opening corresponding to the back of the finished synthetic leather product is arranged in the middle of the turning plate, both ends of the turning plate are connected to the turning frame by transmission, the turning frame is used for the movable turning of the turning plate, and the clamp group is composed of a plurality of positioning clamps for fixing the finished synthetic leather product; The detection unit includes a horizontal displacement device, a mechanical arm and a detection head arranged on the mechanical arm. The horizontal displacement device is used to control the mechanical arm to move along the length direction of the flip plate. The mechanical arm is used to control the detection head to scan the synthetic leather finished product area. The detection head is used for scanning and detecting the synthetic leather finished product.

[0005] Preferably, the positioning fixture is detachably fixed on the flip plate, and a plurality of the positioning fixtures are distributed along the outer edge of the finished synthetic leather product. The positioning fixture is fixed to the outer edge of the finished synthetic leather product to form a fixed clamping fit. The positioning fixture is composed of an upper positioning claw and a lower mounting seat. The mounting seat and the flip plate are detachably threadedly fixed, and the flip plate is provided with an array of threaded mounting holes for threaded fixing of the mounting seat.

[0006] Preferably, the flip frame includes two symmetrically arranged flip seats and a fixed seat connected to the bottom of the two flip seats, a flip motor connected to a control machine is provided on the top of the flip seat, the flip motor is connected to a flip disk provided outside the flip seat, the flip disk is provided on the side of the flip seat corresponding to the flip plate, the flip disk is fixedly connected to a connecting piece provided, and the bottom of the connecting piece is fixedly connected to the outer upper surface of the flip plate. The flip frame controls the rotation of the flip disk through the flip motor, and the flip disk realizes the flipping of the flip plate through the connecting piece.

[0007] Preferably, the horizontal displacement device includes a slide rail extending along the length direction of the flip plate and a slide seat that cooperates with the slide rail to form a guide rail. A robotic arm is fixedly installed on the upper end of the slide seat. The robotic arm includes a base, an arm assembly and a wrist assembly connected in sequence. The detection head is arranged at the end of the wrist assembly.

[0008] Preferably, the base includes a positioning chassis fixedly mounted on the slide, and a rotating head movably mounted on the positioning chassis, the positioning chassis is a circular disc-shaped structure, and the upper surface of the positioning chassis is provided with a plurality of positioning identification blocks distributed in a circular array, the rotating head includes an upper turntable, a first stepper motor and a connecting part, the upper turntable is movably mounted in the middle position of the positioning chassis, the first stepper motor and the connecting part are symmetrically fixedly arranged on both sides of the upper end of the upper turntable, the first stepper motor and the gear plate on the upper part of the positioning chassis form a meshing transmission, an arm assembly is installed on the upper part of the connecting part, and a downwardly protruding positioning sensor is provided at the lower end of the connecting part, and the positioning sensor and the positioning identification block are adapted to determine the rotation angle of the rotating head.

[0009] Preferably, a driving motor connected to the control machine is fixedly arranged on one side of the slide, and a transmission gear is arranged at the end of the driving motor. The transmission gear and a rack arranged on the outer side of the slide rail form a meshing transmission, and the rack is arranged at the lower part of the slide rail and extends along the length direction of the slide rail. The control machine controls the fixed position of the mechanical arm on the slide rail by controlling the start of the driving motor. The gear meshing transmission method can be used for driving the slide and can also facilitate the accurate positioning of the slide.

[0010] Preferably, the detection head includes a camera and / or a flatness scanner, the camera is used to detect the color difference lines on the surface of the synthetic leather, and the flatness scanner is used to scan the flatness of the surface of the synthetic leather.

[0011] Preferably, the outer end of the wrist assembly is provided with a thrust pump and a repair head connected to the control machine, the end of the repair head is movably articulated to the head of the mechanical arm, the end of the repair head is provided with an arc-shaped gear part, and the outer end of the thrust pump is provided with a gear rod meshing with the arc-shaped gear part, and the flipping of the repair head is controlled by retracting the gear rod.

[0012] Beneficial effect: After the finished curved synthetic leather product is fixed by the clamping position of the clamp group, the mechanical arm moves to the set area through the horizontal displacement device, and the control machine controls the detection head to detect and scan the finished curved synthetic leather product through the flexibility of the mechanical arm. After the front surface detection is completed, the detection head position is raised, and then the control machine controls the flipping of the flip plate so that the back of the finished curved synthetic leather product is exposed on top, and then the scanning detection of the back of the finished curved synthetic leather product can be achieved through the mechanical arm. This technical feature completes the rough positioning by providing a horizontal displacement device, and then the mechanical arm is used to achieve more detailed positioning of the detection head. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of Example 1.

[0014] Figure 2 for Figure 1 A magnified schematic diagram of center A.

[0015] Figure 3 for Figure 1 A magnified schematic diagram of point B in the middle.

[0016] Figure 4 It is a front view schematic diagram of Example 1.

[0017] Figure 5 The structure diagram of the flip frame Figure 1 .

[0018] Figure 6 The structure diagram of the flip frame Figure 2 .

[0019] Figure 7This is a partial structural diagram of Example 2.

[0020] Figure numerals: 1. control machine; 2. flip frame; 3. flip plate; 4. hollow mouth; 5. positioning fixture; 51. positioning claw; 52. mounting seat; 6. flip seat; 7. fixed seat; 8. flip motor; 9. flip disk; 10. connecting piece; 11. slide rail; 12. mechanical arm; 13. base; 14. arm assembly; 15. wrist assembly; 16. detection head; 17. repair head; 18. positioning chassis; 19. rotating head; 20. positioning identification block; 21. upper turntable; 22. first stepper motor; 23. connecting part; 24. positioning sensor; 25. driving motor; 26. rack; 27. slide seat; 28. finished synthetic leather product. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-7 The present invention is further described with Examples 1-2.

[0022] Example 1: Figure 1 As shown, a device for detecting the front and back surfaces of a synthetic leather product 28 includes a control machine 1 , a synthetic leather fixing unit and a detection unit both connected to the control machine 1 .

[0023] like Figure 2 and 5 -6, the synthetic leather fixing unit includes a flip frame 2 and a clamp module, and the clamp module includes a flip plate 3 and a clamp group arranged on the flip plate 3. A hollow opening 4 corresponding to the back of the synthetic leather finished product 28 is provided in the middle of the flip plate 3, and both ends of the flip plate 3 are connected to the flip frame 2 by transmission. The flip frame 2 is used for the movable flipping of the flip plate 3, and the clamp group is composed of a plurality of positioning clamps 5 for fixing the synthetic leather finished product 28. The positioning clamp 5 is detachably fixedly installed on the flip plate 3, and a plurality of the positioning clamps 5 are distributed along the outer edge of the synthetic leather finished product 28. The positioning clamp 5 is fixedly clamped to the outer edge of the synthetic leather finished product 28, and the positioning clamp 5 is composed of an upper positioning claw 51 and a lower mounting seat 52. The mounting seat 52 is detachably threadedly fixed to the flip plate 3, and a plurality of threaded mounting holes for threadedly fixing the mounting seat 52 are arranged in an array on the flip plate 3. The flip frame 2 includes two symmetrically arranged flip seats 6 and a fixed seat 7 connected to the bottom of the two flip seats 6. The flip seat 6 is provided with a flip motor 8 connected to the control machine 1 on the upper part. The flip motor 8 is connected to a flip disk 9 arranged outside the flip seat 6. The flip disk 9 is arranged on the side of the flip seat 6 corresponding to the flip plate 3. The flip disk 9 is fixedly connected to a connecting member 10, and the bottom of the connecting member 10 is fixedly connected to the outer upper surface of the flip plate 3. The flip frame 2 controls the rotation of the flip disk 9 through the flip motor 8, and the flip disk 9 realizes the flipping of the flip plate 3 through the connecting member 10.

[0024] like Figure 1 As shown, the detection unit includes a horizontal displacement device, a mechanical arm 12 and a detection head 16 arranged on the mechanical arm 12. The horizontal displacement device is used to control the mechanical arm 12 to move along the length direction of the flip plate 3, the mechanical arm 12 is used to control the detection head 16 to scan the synthetic leather finished product 28 area, and the detection head 16 is used for scanning and detecting the synthetic leather finished product 28. The flip plate 3 in this technical solution generally adopts a rectangular hollow frame structure. The horizontal displacement device includes a slide rail 11 extending along the length direction of the flip plate 3 and a slide seat 27 that cooperates with the slide rail 11 to form a guide rail, and the mechanical arm 12 is fixedly installed on the upper end of the slide seat 27. A drive motor 25 connected to the control machine 1 is fixedly arranged on one side of the slide seat 27, and a transmission gear is arranged at the end of the drive motor 25. The transmission gear and the rack 26 arranged on the outer side of the slide rail 11 form a meshing transmission, and the rack 26 is arranged at the lower part of the slide rail 11 and extends along the length direction of the slide rail 11. The control machine 1 controls the fixed position of the robot arm 12 on the slide rail 11 by controlling the start of the drive motor 25 . The gear meshing transmission method can be used for driving the slide 27 to slide and facilitate accurate positioning of the slide 27 .

[0025] like Figure 3 As shown, the mechanical arm 12 includes a base 13, an arm assembly 14 and a wrist assembly 15 connected in sequence, and the detection head 16 is arranged at the end of the wrist assembly 15. The base 13 includes a positioning chassis 18 fixedly mounted on a slide 27, and a rotating head 19 movably mounted on the positioning chassis 18. The positioning chassis 18 is a circular disc structure, and the upper surface of the positioning chassis 18 is provided with a plurality of positioning identification blocks 20 distributed in a circular array. The rotating head 19 includes an upper turntable 21, a first stepper motor 22 and a connecting portion 23. The upper turntable 21 is movably mounted in the middle position of the positioning chassis 18. The first stepper motor 22 and the connecting portion 23 are symmetrically fixedly arranged on both sides of the upper end of the upper turntable 21. The symmetrical arrangement of the first stepper motor 22 and the connecting portion 23 can effectively avoid the situation where one side of the rotating head 19 is too heavy, thereby improving the stability of the rotating head 19. The first stepper motor 22 forms a meshing transmission with the gear plate on the upper part of the positioning chassis 18, the arm assembly 14 is installed on the upper part of the connecting part 23, and a downwardly protruding positioning sensor 24 is provided at the lower end of the connecting part 23. The positioning sensor 24 and the positioning identification block 20 are adapted to determine the rotation angle of the rotating head 19.

[0026] like Figure 4 As shown, the detection head 16 includes a camera and a flatness scanner. Figure 4 It can be seen that the camera and the flatness scanner are both arranged at the outer end of the wrist assembly. The camera is used to detect the color difference lines on the surface of the synthetic leather, and the flatness scanner is used to scan the flatness of the surface of the synthetic leather.

[0027] Operation principle: After the curved synthetic leather product 28 is fixed by multiple positioning fixtures 5 along the clamping position of its outer edge, the control machine 1 drives the mechanical arm 12 to the set position by meshing the transmission gear of the driving motor 25 with the rack 26 of the slide rail 11. The first stepper motor 22 controls the rotation of the rotating head 19, and the precise positioning of the direction of the mechanical arm 12 is achieved through the positioning sensor 24 and the positioning identification block 20. The detection head 16 scans and detects the curved synthetic leather product 28 through the flexible adjustment of the arm assembly 14 and the wrist assembly 15 of the mechanical arm 12. If a repair head 17 is provided, it can even repair the detected defects accordingly. After the front surface inspection is completed, the position of the detection head 16 is lifted, and then the control machine 1 controls the flipping of the flip plate 3 so that the back of the curved synthetic leather product 28 is exposed on the top, and then the scanning inspection of the back of the curved synthetic leather product 28 can be achieved through the mechanical arm 12.

[0028] Embodiment 2: Compared with Embodiment 1, Embodiment 2 differs from Embodiment 1 in that a thrust pump and a repair head 17 connected to the control machine 1 are added to the outer end of the wrist assembly 15, and the flatness scanner is replaced by the repair head 17. The end of the repair head 17 is movably articulated to the head of the mechanical arm 12, and the end of the repair head 17 is provided with an arc gear part, and the outer end of the thrust pump is provided with a gear rod meshing with the arc gear part, and the retractable gear rod is used to control the flipping of the repair head 17. The paint spray port is used to spray synthetic leather paint or glue to repair synthetic leather.

[0029] Obviously, the above embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to exhaust all implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A device for testing the front and back surfaces of finished synthetic leather products, characterized in that: The invention comprises a control machine (1), a synthetic leather fixing unit and a detection unit both connected to the control machine (1); the synthetic leather fixing unit comprises a turning frame (2) and a clamp module; the clamp module comprises a turning plate (3) and a clamp group arranged on the turning plate (3); a hollow opening (4) corresponding to the back of a finished synthetic leather product (28) is arranged in the middle of the turning plate (3); both ends of the turning plate (3) are connected to the turning frame (2) by transmission; the turning frame (2) is used for the movable turning of the turning plate (3); and the clamp group is composed of a plurality of positioning clamps (5) for fixing the finished synthetic leather product (28); The detection unit comprises a horizontal displacement device, a mechanical arm (12) and a detection head (16) arranged on the mechanical arm (12); the horizontal displacement device is used to control the mechanical arm (12) to move along the length direction of the flip plate (3); the mechanical arm (12) is used to control the detection head (16) to scan a corresponding area of ​​a synthetic leather finished product (28); and the detection head (16) is used to scan and detect the synthetic leather finished product (28).

2. The detection device for the front and back surfaces of synthetic leather products according to claim 1, characterized in that: The positioning fixture (5) is detachably fixedly mounted on the flip plate (3); a plurality of the positioning fixtures (5) are distributed along the outer edge of the finished synthetic leather product (28); the positioning fixture (5) is fixedly mounted on the outer edge of the finished synthetic leather product (28) to form a fixed clamping fit; the positioning fixture (5) is composed of an upper positioning claw (51) and a lower mounting seat (52); the mounting seat (52) is detachably threadedly fixed to the flip plate (3); and a plurality of threaded mounting holes for threadedly fixing the mounting seat (52) are arranged in an array on the flip plate (3).

3. The detection device for the front and back surfaces of synthetic leather products according to claim 1, characterized in that: The flip frame (2) comprises two symmetrically arranged flip seats (6) and a fixed seat (7) connected to the bottom of the two flip seats (6); a flip motor (8) connected to a control machine (1) is provided on the top of the flip seat (6); the flip motor (8) is connected to a flip disk (9) arranged outside the flip seat (6); the flip disk (9) is arranged on the side of the flip seat (6) corresponding to the flip plate (3); the flip disk (9) is fixedly connected to a connecting piece (10); the bottom of the connecting piece (10) is fixedly connected to the outer upper surface of the flip plate (3).

4. The detection device for the front and back surfaces of synthetic leather products according to claim 1, characterized in that: The horizontal displacement device comprises a slide rail (11) extending along the length direction of the flip plate (3) and a slide seat (27) cooperating with the slide rail (11) to form a guide rail. A mechanical arm (12) is fixedly mounted on the upper end of the slide seat (27). The mechanical arm (12) comprises a base (13), an arm assembly (14) and a wrist assembly (15) connected in sequence. The detection head (16) is arranged at the end of the wrist assembly (15).

5. The detection device for the front and back surfaces of finished synthetic leather products according to claim 4, characterized in that: The base (13) comprises a positioning chassis (18) fixedly mounted on a slide (27), and a rotating head (19) movably mounted on the positioning chassis (18); the positioning chassis (18) is a circular disc-shaped structure; a plurality of positioning identification blocks (20) distributed in a circular array are provided on the upper surface of the positioning chassis (18); the rotating head (19) comprises an upper turntable (21), a first stepper motor (22) and a connecting portion (23); the upper turntable (21) is movably mounted in the positioning chassis (18) The first stepper motor (22) and the connecting part (23) are respectively and symmetrically fixedly arranged on both sides of the upper end of the upper turntable (21); the first stepper motor (22) and the gear plate on the upper part of the positioning chassis (18) form a meshing transmission; the arm assembly (14) is installed on the upper part of the connecting part (23); the lower end of the connecting part (23) is provided with a positioning sensor (24) protruding downward; the positioning sensor (24) and the positioning identification block (20) are adapted to determine the rotation angle of the rotating head (19).

6. The detection device for the front and back surfaces of synthetic leather products according to claim 4, characterized in that: A driving motor (25) connected to the control machine (1) is fixedly arranged on one side of the slide seat (27); a transmission gear is arranged at the end of the driving motor (25); the transmission gear and a rack (26) arranged on the outer side of the slide rail (11) form a meshing transmission; the rack (26) is arranged at the lower part of the slide rail (11) and extends along the length direction of the slide rail (11).

7. The detection device for the front and back surfaces of synthetic leather products according to claim 1, characterized in that: The detection head (16) comprises a camera and / or a flatness scanner, wherein the camera is used to detect the color difference patterns on the surface of the synthetic leather, and the flatness scanner is used to scan the flatness of the surface of the synthetic leather.

8. The detection device for the front and back surfaces of synthetic leather products according to claim 4, characterized in that: The outer end of the wrist assembly (15) is provided with a thrust pump of the control machine (1) and a repair head (17); the end of the repair head (17) is movably articulated to the head of the mechanical arm (12); the end of the repair head (17) is provided with an arc-shaped gear portion; the outer end of the thrust pump is provided with a gear rod meshing with the arc-shaped gear portion; the turning of the repair head (17) is controlled by telescoping the gear rod.

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