Zipper visual inspection device

Abstract

The utility model relates to the technical field of zipper detection, in particular to a zipper visual detection device which comprises a rack and an upper computer, a conveying mechanism used for conveying zippers is arranged on the rack, a visual detection mechanism used for shooting the zippers is arranged in the conveying direction of the conveying mechanism, and the visual detection mechanism is electrically connected with the upper computer. The conveying mechanism at least comprises a steering mechanism used for bending, steering and conveying the zipper, the visual detection mechanism comprises a first visual detection mechanism and a second visual detection mechanism, the first visual detection mechanism is arranged in front of the steering mechanism, and the second visual detection mechanism is arranged behind the steering mechanism. The two visual detection mechanisms are different in photographing direction and are not opposite, so that mutual interference of light sources during photographing is avoided, and visual detection errors are reduced.

Description

Technical Field

[0001] The utility model relates to the field of zipper detection equipment, and more specifically to a zipper visual detection device. Background Art

[0002] At present, the detection method for defective zippers has gradually shifted from manual naked eye detection to mechanical detection. In particular, machine vision detection has excellent objectivity, non-destructiveness and high efficiency, and is more suitable for online detection of zippers. For example, the Chinese invention patent with authorization announcement number CN112189951B previously applied for by the applicant, a zipper production equipment with visual detection function, that is, a zipper processing method, discloses the detection of zipper teeth by using two upper and lower CCD cameras and a light source. However, in the actual use process, it was found that the two CCD cameras and light sources of this method are in a straight line, so they are easily affected by the relative influence of the light source during the detection process, resulting in the CCD camera being unable to accurately detect the zipper teeth, resulting in unnecessary detection errors. Utility Model Content

[0003] The purpose of the utility model is to provide a zipper visual inspection device to solve the above problems.

[0004] The utility model adopts the following technical solutions:

[0005] A zipper visual inspection device comprises a frame and a host computer, wherein the frame is provided with a conveying mechanism for conveying the zipper, and a visual inspection mechanism for photographing the zipper is provided along the conveying direction of the conveying mechanism, wherein the visual inspection mechanism is electrically connected to the host computer, wherein the conveying mechanism comprises at least one steering mechanism for bending and steering the zipper for transmission, wherein the visual inspection mechanism comprises a first visual inspection mechanism and a second visual inspection mechanism, wherein the first visual inspection mechanism is arranged in front of the steering mechanism and is used for photographing one side of the zipper before the zipper is turned, and the second visual inspection mechanism is arranged behind the steering mechanism and is used for photographing the other side of the zipper after the zipper is turned.

[0006] Furthermore, the first visual detection mechanism and the second visual detection mechanism have different photographing directions and are not arranged facing each other.

[0007] Furthermore, the steering mechanism is at least one guide wheel, and the zipper is transferred in an L-shaped manner by bypassing the guide wheel.

[0008] Furthermore, the steering mechanism comprises at least three guide wheels, which are arranged in a V-shape, and the zipper is transferred by passing through the three guide wheels in sequence in a U-shaped steering manner.

[0009] Furthermore, the first visual inspection mechanism and the second visual inspection mechanism are arranged vertically, the first visual inspection mechanism is vertically oriented to photograph the zipper, and the second visual inspection mechanism is horizontally oriented to photograph the zipper.

[0010] Furthermore, the first visual detection mechanism and the second visual detection mechanism both include a camera, a light source and a light shielding plate, and the camera, the light source, the zipper and the light shielding plate are sequentially arranged in the same straight line.

[0011] Furthermore, a marking mechanism for marking on the zipper is provided on the frame along the conveying direction of the conveying mechanism and behind the visual inspection mechanism, and the marking mechanism is electrically connected to the host computer.

[0012] Furthermore, the marking mechanism is a punching mechanism, which includes a punching seat and a punching cylinder arranged on the punching seat, the punching seat is provided with a die for the zipper tape to pass through, and a punch for punching holes in the zipper tape is provided above the die, and the punch is fixedly connected to the output shaft of the punching cylinder.

[0013] Furthermore, a storage mechanism for storing zippers is provided on the frame along the conveying direction of the conveying mechanism and behind the punching mechanism.

[0014] Furthermore, the conveying mechanism includes a plurality of traction wheels and at least one feeding mechanism located in the conveying direction, the feeding mechanism includes a feeding motor, the output shaft of the feeding motor is fixedly connected with a driving wheel, the driving wheel is provided with a damping wheel, the damping wheel is tangentially in conflict with the driving wheel, and the zipper is located between the driving wheel and the damping wheel.

[0015] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model uses a steering mechanism to turn the zipper for transmission, and respectively arranges a first visual inspection mechanism and a second visual inspection mechanism before and after the turning to take pictures of the front and back sides of the zipper, so that the photographing directions of the two visual inspection mechanisms are different and not facing each other, thereby avoiding mutual interference of photographing light sources and reducing visual inspection errors.

[0017] 2. The utility model turns the zipper into an L-shaped or U-shaped arrangement through a steering mechanism, and utilizes the spatiality of the steering structure to arrange the two visual inspection mechanisms up and down on the same vertical line, making the structure of the device more compact, improving space utilization, and reducing the space occupied by the equipment.

[0018] 3. The utility model is further provided with a marking mechanism for marking on the zipper after the visual inspection mechanism. The marking mechanism is preferably a punching mechanism. By punching holes in the cloth tape of the zipper to compare the defective section of the zipper, the marking method is simple and obvious and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the front view of the utility model.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0021] Figure 3 It is a structural schematic diagram of the material abnormality alarm mechanism of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the first feeding mechanism and the tension adjustment mechanism of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the leveling mechanism, visual detection mechanism, steering mechanism and punching mechanism of the utility model.

[0024] Figure 6 It is a simple schematic diagram of the L-shaped layout of the steering mechanism of the utility model.

[0025] Among them, the numbers in the figure are: frame 10; conveying mechanism 20, traction wheel 21, first feeding mechanism 22, second feeding mechanism 23, feeding motor 31, driving wheel 32, damping wheel 33; material abnormality alarm mechanism 40, material seat 41, material table 42, foreign matter swing block 43, first abnormality alarm proximity switch 44; tension adjustment mechanism 50, sliding wheel 51, sliding bracket 52, sliding seat 53, sliding cylinder 54; leveling mechanism 60, leveling seat 61, leveling platform 62, leveling rocker plate 63, second abnormality alarm proximity switch 64; first visual detection mechanism 701, second visual detection mechanism 702, camera 71, light source 72, block plate 73; steering mechanism 80, guide wheel 81; punching mechanism 90, punching seat 91, punching cylinder 92, die 93, punch 94; storage mechanism 100; zipper 110. DETAILED DESCRIPTION

[0026] The specific implementation of the embodiment of the utility model is described below with reference to the accompanying drawings.

[0027] Reference Figure 1 and Figure 2A zipper visual inspection device includes a frame 10 and a host computer (not shown in the figure). The frame 10 is provided with a conveying mechanism 20 for conveying the zipper 110. The conveying mechanism 20 includes a plurality of traction wheels 21 located in the conveying direction for pulling the zipper 110, and at least one feeding mechanism for providing traction power. In this embodiment, there are preferably two feeding mechanisms, namely a first feeding mechanism 22 and a second feeding mechanism 23.

[0028] Reference Figure 1 and Figure 2 The frame 10 is provided with a material abnormality alarm mechanism 40, the first feeding mechanism 22, the tension adjustment mechanism 50, the leveling mechanism 60, the visual inspection mechanism, the steering mechanism 80, the marking mechanism, the second feeding mechanism 23 and the storage mechanism 100 in sequence along the conveying direction of the conveying mechanism 20. The material abnormality alarm mechanism 40, the first feeding mechanism 22, the tension adjustment mechanism 50, the leveling mechanism 60, the visual inspection mechanism, the marking mechanism, and the second feeding mechanism 23 are electrically connected to the upper computer respectively.

[0029] Reference Figure 3 The material abnormality alarm mechanism 40 is used as the first detection method before the zipper 110 enters the device, and is used to detect whether there are protrusions or foreign objects on the surface of the zipper 110. The material abnormality alarm mechanism 40 includes a material seat 41, on which a foreign object swing block 43 and a material table 42 for the zipper 110 to pass flatly are hinged. One end surface of the foreign object swing block 43 is in conflict with the material table 42. The material seat 41 is also provided with a first abnormality alarm proximity switch 44 for detecting the swing amplitude of the foreign object swing block 43. The first abnormality alarm proximity switch 44 is electrically connected to the upper computer.

[0030] Reference Figure 2 and Figure 4 The first feeding mechanism 22 and the second feeding mechanism 23 have basically the same structure, and both include a feeding motor 31. A driving wheel 32 is fixedly connected to the output shaft of the feeding motor 31. A damping wheel 33 is provided on the driving wheel 32. The damping wheel 33 is tangentially in conflict with the driving wheel 32. The zipper 110 is clamped between the driving wheel 32 and the damping wheel 33. The zipper 110 is pulled and transmitted through the rotation of the driving wheel 32 and the damping wheel 33.

[0031] Reference Figure 4The tension adjustment mechanism 50 is used to adjust the tension of the zipper 110 in the transmission mechanism 20. While tightening the zipper 110, it can also solve the problem of wrinkling of the zipper 110 due to transmission. The tension adjustment mechanism 50 includes a sliding wheel 51 that can move up and down, and a driving mechanism for driving the sliding wheel 51 to move up and down. The driving mechanism includes a sliding bracket 52, a sliding seat 53 that can move up and down along the sliding bracket 52, and a sliding cylinder 54 that drives the sliding seat 53 to move. The sliding wheel 51 is pivotally connected to the sliding seat 53. The zipper 110 is transmitted by the transmission mechanism 20 and bypasses the sliding wheel 51 to form a V-shaped tension adjustment area. The sliding cylinder 54 controls the up and down movement of the sliding wheel 51 to adjust the V-shaped tension adjustment area of ​​the zipper 110, thereby adjusting the tension and wrinkling problem of the zipper 110.

[0032] Reference Figure 5 The leveling mechanism 60 is arranged before the visual inspection mechanism, and is used to level the zipper 110, ensuring that the zipper 110 can remain flat and wrinkle-free before entering the visual inspection mechanism. The leveling mechanism 60 includes a leveling seat 61, on which is provided a leveling platform 62 for the zipper 110 to pass flatly, and above the leveling platform a leveling rocker 63 is provided, the leveling rocker 63 is pivotally connected to the leveling seat 61 through a mandrel, and a torsion spring (not shown in the figure) is provided between the mandrel and the leveling rocker 63 for pressing the bottom of the leveling rocker 63 onto the leveling platform 62, and the leveling seat 61 is also provided with a second abnormal alarm proximity switch 64 for detecting the swing amplitude of the leveling rocker 63. In this embodiment, the torsion spring built between the leveling rocker 63 and the core shaft is sufficient to smooth out small wrinkles on the zipper 110. If the wrinkles on the zipper 110 are too large to be smoothed out, the leveling rocker 63 will be lifted up, triggering the second abnormal alarm proximity switch 64, and the tension of the zipper 110 will be re-adjusted through the tension adjustment mechanism 50 to smooth out the wrinkles on the zipper 110.

[0033] Reference Figure 5 and Figure 6 The visual inspection mechanism is used to take photos of the zipper 110 for inspection, and the steering mechanism 80 is used to bend and turn the zipper 110 for transmission. The visual inspection mechanism includes a first visual inspection mechanism 701 and a second visual inspection mechanism 702. The first visual inspection mechanism 701 is arranged in front of the steering mechanism 80, and is used to take photos of one side of the zipper 110 before the zipper 110 turns. The second visual inspection mechanism 702 is arranged behind the steering mechanism 80, and is used to take photos of the other side of the zipper 110 after the zipper 110 turns. The first visual inspection mechanism 701 and the second visual inspection mechanism 702 have different shooting directions and are not arranged opposite to each other. The first visual inspection mechanism 701 and the second visual inspection mechanism 702 both include a camera 71, a light source 72 and a light shielding plate 73. The camera 71, the light source 72, the zipper 110 and the light shielding plate 73 are arranged in the same straight line in sequence. The light source 72 can preferably be an LED light ring.

[0034] like Figure 6 In the present device, the steering mechanism 80 may be at least one guide wheel 81, and the zipper 110 is transferred in an L-shaped manner by passing around the guide wheel 81. The first visual inspection mechanism 701 and the second visual inspection mechanism 702 are arranged vertically, and the first visual inspection mechanism 701 is vertically directed to photograph one side of the zipper 110, and the second visual inspection mechanism 702 is horizontally directed to photograph the other side of the zipper 110. Figure 5 The steering mechanism 80 includes at least three guide wheels 81, which are arranged in a V-shape. The zipper 110 passes over the three guide wheels 81 in sequence and is transferred in a U-shaped manner. The first visual inspection mechanism 701 and the second visual inspection mechanism 702 are also arranged up and down, with one side of the zipper 110 facing vertically and the other side facing horizontally. In this embodiment, the three guide wheels 81 are preferably arranged in a V-shape.

[0035] Reference Figure 5 The marking mechanism is used to mark the zipper 110. The marking method can be coating, gluing, punching, etc. The present embodiment preferably uses a punching mechanism 90 to punch holes on the fabric tape of the zipper 110 to make marks. The punching mechanism 90 includes a punching seat 91 and a punching cylinder 92 disposed on the punching seat 91. The punching seat 91 is provided with a die 93 for the fabric tape of the zipper 110 to pass through. A punch 94 for punching holes in the fabric tape of the zipper 110 is disposed above the die 93. The punch 94 is fixedly connected to the output shaft of the punching cylinder 92. In the present embodiment, the die 93 adopts a C-shaped structure design. The C-shaped opening of the die 93 is used for the fabric tape of the zipper 110 to pass through. Through holes (not shown in the figure) are provided on the upper and lower sides of the C-shaped opening for the punch 94 to penetrate.

[0036] Reference Figure 1 and Figure 2 The material storage mechanism 100 is a material storage box for storing the zippers 110 that have been visually inspected and marked for subsequent operations.

[0037] Reference Figures 1 to 5 The specific operation process of this device is as follows:

[0038] The zipper 110, in this embodiment, is preferably a zipper 110 for stacking. The zipper 110 is pulled and conveyed by the first feeding mechanism 22 and the second feeding mechanism 23. Before the zipper 110 is pulled into the device, it will first pass through the material abnormality alarm mechanism 40 for preliminary leveling and detection. If there is foreign matter or protrusion on the surface of the zipper 110, when passing through the material abnormality alarm mechanism 40, the foreign matter pendulum block 43 will be lifted, thereby triggering the first abnormal alarm proximity switch 44 to report to the upper computer, and the device will be shut down, and the staff will check and remove the foreign matter.

[0039] After the abnormality is eliminated or there is no abnormality, the zipper 110 continues to be transmitted through the tension adjustment mechanism 50 and the flattening mechanism 60, and is flattened by the flattening mechanism 60. If the wrinkles of the zipper 110 are too large to be smoothed, the flattening rocker 63 will be lifted, triggering the second abnormal alarm proximity switch 64 to report to the host computer, and the device will stop, and the tension of the zipper 110 will be adjusted through the tension adjustment mechanism 50 to smooth the wrinkles of the zipper 110.

[0040] After the zipper 110 is smoothed by the leveling mechanism 60, it will first pass through the first visual inspection mechanism 701, which will take a photo of the front side of the zipper 110 and upload it to the host computer for visual inspection. The zipper 110 will then be sent to the steering mechanism 80 for steering and transmission, and the second visual inspection mechanism 702 will take a photo of the back side of the zipper 110 and upload it to the host computer for visual inspection.

[0041] After the front and back sides of the zipper 110 are inspected by taking photos, they are sent to the punching mechanism 90. Based on the visual inspection results, it is decided whether to punch a mark on the zipper 110. If the visual inspection result shows that the zipper 110 is defective, the punching mechanism 90 punches a mark on the corresponding zipper 110 tape. Finally, the zipper 110 after visual inspection and marking is sent to the storage mechanism 100 for temporary storage, awaiting subsequent operations.

[0042] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A zipper visual inspection device, comprising a frame and a host computer, wherein the frame is provided with a conveying mechanism for conveying the zipper, and a visual inspection mechanism for photographing the zipper is provided along the conveying direction of the conveying mechanism, wherein the visual inspection mechanism is electrically connected to the host computer, and characterized in that: The conveying mechanism includes at least one steering mechanism for bending and steering the zipper for conveyance, and the visual inspection mechanism includes a first visual inspection mechanism and a second visual inspection mechanism. The first visual inspection mechanism is arranged in front of the steering mechanism, and is used to take a picture of one side of the zipper before the zipper is turned, and the second visual inspection mechanism is arranged behind the steering mechanism, and is used to take a picture of the other side of the zipper after the zipper is turned.

2. A zipper visual inspection device according to claim 1, characterized in that: The first visual detection mechanism and the second visual detection mechanism have different photographing directions and are not arranged facing each other.

3. A zipper visual inspection device according to claim 2, characterized in that: The steering mechanism is at least one guide wheel, and the zipper is transferred in an L-shaped manner by bypassing the guide wheel.

4. A zipper visual inspection device according to claim 2, characterized in that: The steering mechanism comprises at least three guide wheels, which are arranged in a V shape, and the zipper passes through the three guide wheels in sequence to be U-shaped and turned for transmission.

5. A zipper visual inspection device according to claim 3 or 4, characterized in that: The first visual inspection mechanism and the second visual inspection mechanism are arranged one above the other. The first visual inspection mechanism is oriented vertically to photograph the zipper, and the second visual inspection mechanism is oriented horizontally to photograph the zipper.

6. A zipper visual inspection device according to claim 1, characterized in that: The first visual detection mechanism and the second visual detection mechanism both include a camera, a light source and a light shielding plate, and the camera, the light source, the zipper and the light shielding plate are sequentially arranged in the same straight line.

7. A zipper visual inspection device according to claim 1, characterized in that: A marking mechanism for marking a mark on the zipper is also provided on the frame along the conveying direction of the conveying mechanism and behind the visual inspection mechanism. The marking mechanism is electrically connected to the host computer.

8. A zipper visual inspection device according to claim 7, characterized in that: The marking mechanism is a punching mechanism, which includes a punching seat and a punching cylinder arranged on the punching seat. The punching seat is provided with a die for the zipper tape to pass through, and a punch for punching holes in the zipper tape is provided above the die. The punch is fixedly connected to the output shaft of the punching cylinder.

9. A zipper visual inspection device according to claim 8, characterized in that: A material storage mechanism for storing zippers is also provided on the frame along the conveying direction of the conveying mechanism and behind the punching mechanism.

10. The zipper visual inspection device according to claim 1, characterized in that: The conveying mechanism includes a plurality of traction wheels and at least one feeding mechanism located in the conveying direction, the feeding mechanism includes a feeding motor, a driving wheel is fixedly connected to the output shaft of the feeding motor, a damping wheel is provided on the driving wheel, the damping wheel is tangentially in conflict with the driving wheel, and the zipper is located between the driving wheel and the damping wheel.

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