Sole quality inspection machine and production line

Abstract

The invention belongs to the technical field of shoe sole manufacturing, and provides a shoe sole quality inspection machine which comprises a size detection device used for detecting the size of a shoe sole, and the size detection device comprises at least two acquisition modules adopting the structured light principle; wherein one of the acquisition modules faces the front end of the bottom surface of the to-be-detected shoe sole in an inclined posture, and the other acquisition module faces the rear end of the bottom surface of the to-be-detected shoe sole in an inclined posture. The detection efficiency and precision of the size of the shoe sole can be improved.

Description

Technical Field

[0001] This invention belongs to the field of shoe sole manufacturing technology, specifically relating to a shoe sole quality inspection machine and production line. Background Technology

[0002] The sole is the most crucial functional component of a shoe, its quality directly affecting the shoe's safety (slip resistance, abrasion resistance), functionality (cushioning, support), and durability. It is also one of the most technically demanding and complex aspects of quality control in the shoe manufacturing industry. The midsole, located between the insole and outsole, determines the shoe's cushioning and rebound performance. Therefore, during shoe manufacturing, the dimensions and appearance of the midsole are typically inspected to determine if it meets factory standards and to reject defective products. Furthermore, midsole quality control can be combined with model identification, enabling simultaneous model sorting during the quality inspection process. In the sole quality control production line, sole size inspection is one of the challenges. Current technology generally uses laser linear scanning, which can automate sole size detection. However, the process requires the laser scanning equipment to linearly move across the sole to obtain the necessary parameters, resulting in low efficiency and a complex structure. Additionally, the front and rear ends of the sole often have upturned or sloping designs, especially in athletic shoes; therefore, the accuracy of laser linear scanning for sole size detection needs improvement. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this invention is to provide a shoe sole quality inspection machine, which is beneficial to improving the efficiency and accuracy of shoe sole size detection.

[0004] The technical solution adopted by this invention to solve its technical problem is: A shoe sole quality inspection machine includes a size detection device for detecting shoe sole dimensions. The size detection device includes at least two acquisition modules using the structured light principle. One acquisition module is tilted towards the front end of the sole surface to be tested, and the other acquisition module is tilted towards the rear end of the sole surface to be tested.

[0005] In a preferred embodiment of the present invention, the bottom surface of the shoe sole to be tested faces upward, and each of the acquisition modules is located above the shoe sole to be tested.

[0006] In a preferred embodiment of the present invention, the sole quality inspection machine further includes a transfer device, the transfer device including at least one fixing component and a first driving mechanism for driving the fixing component to move, the sole to be tested is fixed on the fixing component, and the first driving mechanism drives the fixing component to move so as to drive the sole to be tested into or out of the size detection station of the size detection device.

[0007] Preferably, the fixing component includes multiple suction cups, which are connected to a negative pressure device, and the sole of the shoe to be tested is adsorbed onto the multiple suction cups.

[0008] In a preferred embodiment of the present invention, the shoe sole quality inspection machine further includes an identification device for identifying the model of the shoe sole to be tested, the identification device including an identification camera; along the transfer sequence of the shoe sole to be tested, the identification device is located upstream of the size detection device.

[0009] Preferably, the identification device further includes a conveying mechanism and a flipping mechanism; the conveying mechanism includes a conveyor belt and a second drive mechanism for driving the conveyor belt to move, and the identification camera is located above the conveyor belt; the conveyor belt corresponds to one of the fixed components, and the flipping mechanism is located between the fixed component and the conveyor belt; The flipping mechanism includes a clamping assembly, a third driving mechanism for driving the clamping assembly to close or open, and a fourth driving mechanism for driving the clamping assembly to flip. The sole of the shoe to be tested is placed on the conveyor belt with its top surface facing up. After the identification camera identifies its model, the flipping mechanism flips it over and transfers it to the fixing component, where it is fixed with its bottom surface facing up.

[0010] Preferably, the identification device further includes a positioning mechanism, which includes two positioning elements and a seventh driving mechanism for driving the two positioning elements to move closer or further apart from each other. The two positioning elements are located on both sides of the conveyor belt and are arranged opposite to each other at the end of the conveyor belt.

[0011] In a preferred embodiment of the present invention, the shoe sole quality inspection machine further includes an appearance inspection device, which includes two sets of image acquisition devices. The two sets of image acquisition devices are arranged opposite to each other and form an appearance inspection station between the two sets of image acquisition devices. The shoe sole to be tested is located at the appearance inspection station. Each set of image acquisition devices includes two sets of acquisition modules, and each set of acquisition modules includes several cameras; the camera of one set of acquisition modules is higher than the sole of the shoe to be tested, and the camera of the other set of acquisition modules is lower than the sole of the shoe to be tested. Each acquisition module includes a middle camera, a front camera, and a rear camera. The front camera, middle camera, and rear camera are arranged along the length of the sole to be tested. The middle camera corresponds to the middle of the appearance inspection station. The front camera and the rear camera are located on both sides of the middle camera. The front camera and the rear camera are located on the front and rear sides of the sole to be tested and are tilted towards the sole to be tested.

[0012] In a preferred embodiment of the present invention, the shoe sole quality inspection machine further includes a receiving device; the receiving device includes a receiving mechanism for transporting shoe soles that have completed quality inspection, a plurality of receiving boxes, and an eighth driving mechanism for driving the receiving mechanism to move between the plurality of receiving boxes, wherein the shoe soles to be received and the plurality of receiving boxes are located on both sides of the receiving mechanism.

[0013] The second objective of this invention is to provide a sole quality inspection production line that includes the aforementioned sole quality inspection machine.

[0014] A shoe sole quality inspection production line includes a shoe sole quality inspection machine and a sorting and conveying mechanism; the sorting and conveying mechanism includes a conveyor belt, multiple unloading components, and multiple receiving ports; the inlet end of the conveyor belt is connected to the outlet of the shoe sole quality inspection machine, the multiple receiving ports are respectively located on both sides of the conveyor belt, and the receiving ports on both sides of the conveyor belt are staggered; the multiple unloading components correspond one-to-one with the multiple receiving ports; when a shoe sole on the conveyor belt moves to the corresponding receiving position, the unloading component transfers the shoe sole to the corresponding receiving port.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The shoe sole quality inspection machine of this invention uses structured light measurement to detect the size of the shoe sole. Compared with two-dimensional linear scanning, it has the advantages of high precision and high efficiency. At the same time, this invention innovatively uses two acquisition modules, which are tilted (at a certain angle) towards the front and rear of the shoe sole, respectively, to effectively solve the problem of measurement accuracy affected by the irregular structure of the front and rear of the shoe sole. Moreover, when only two acquisition modules are used, it is sufficient to meet the image acquisition requirements of the shoe sole. The structure is simple, reliable and highly accurate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of the shoe sole quality inspection machine of the present invention.

[0018] Figure 2 This is a perspective view of the shoe sole quality inspection machine of the present invention.

[0019] Figure 3 for Figure 1 A front view of the dimension measuring device in the image.

[0020] Figure 4 for Figure 1 A three-dimensional diagram of the identification device.

[0021] Figure 5 for Figure 1 A three-dimensional view of the identification device, transfer device, and receiving device in the process.

[0022] Figure 6 for Figure 1 A three-dimensional view of the transfer device and the receiving device in the middle.

[0023] Figure 7 for Figure 1 A front view of the appearance inspection device in the image.

[0024] Figure 8 for Figure 1 A top view of the appearance inspection device.

[0025] Figure 9 for Figure 1 A three-dimensional view of the appearance inspection device.

[0026] Figure 10 for Figure 7 The image acquisition device and the front view of the sole of the shoe to be tested are shown in the image.

[0027] Figure 11 for Figure 7 A stereoscopic image of one of the image acquisition devices, lighting devices, and the sole of the shoe to be tested.

[0028] Figure 12 This is a top view of the shoe sole quality inspection production line of the present invention.

[0029] in: A-Identification device, B-Appearance inspection device, C-Dimensional inspection device, D-Receiving device, E-Transfer device; 1-Image acquisition device, 101-Front camera, 102-Rear camera, 103-Intermediate camera, 104-Moving block, 105-Bidirectional lead screw, 106-Power source, 107-Slider, 108-Guide rail; 2-Lighting device, 201-Bracket, 202-Upper lighting component, 203-Middle lighting component, 204-Lower lighting component; 3-The sole of the shoe to be tested; 4-Conveying mechanism, 401-Conveyor belt, 402-Pulley; 5-Flipping mechanism, 501-Clamping assembly, 502-Third drive mechanism, 503-Fourth drive mechanism, 504-Fifth drive mechanism, 506-Positioning component, 507-Seventh drive mechanism; 6- Camera recognition; 7-Receiving mechanism; 8-Receiving box; 9-Rotating frame; 10 - First drive mechanism; 11-Support rod; 12-Fixing component, 1201-Suction cup; 13-Data Acquisition Module; 14-Support frame; 15-Conveyor belt; 16-Blanked parts; 17 - Receiving port. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] Example 1 See Figures 1-11 This embodiment discloses a shoe sole quality inspection machine, including an identification device A, an appearance inspection device B, a size inspection device C for detecting shoe sole dimensions, a receiving device D, and a transfer device E. The workstations of the size inspection device C, appearance inspection device B, receiving device D, and identification device A are roughly arranged in a rectangular layout. The transfer device E transfers the shoe soles between the workstations by rotation, sequentially completing the identification of shoe sole models, inspection of appearance defects, detection of length dimensions, and classification and collection.

[0033] The transfer device E in this embodiment includes four fixed components 12 and a first drive mechanism 10 for moving the fixed components 12. The sole to be tested is fixed on the fixed components 12, and the first drive mechanism 10 drives the fixed components 12 to rotate, thereby moving the sole to be tested into or out of each workstation. The transfer device E allows the sole to be tested to be automatically transferred between different workstations, achieving automated quality inspection of the sole. In addition to using a rotary transfer method, the transfer device E in this embodiment can also use a linear conveying method to transfer the sole to be tested; the arrangement of each device can be adjusted accordingly.

[0034] Furthermore, the fixing component 12 in this embodiment includes a plurality of suction cups 1201, which are connected to a negative pressure device. The sole of the shoe to be tested is adsorbed onto the plurality of suction cups 1201. The suction cups 1201 use negative pressure to hold the sole in place to fix its position.

[0035] The transfer device E also includes a rotating frame 9, which is provided with multiple radially extending support rods 11, each of which is provided with a fixing component 12; the first drive mechanism 10 drives the rotating frame 9 to rotate so as to transfer the shoe sole to be tested to different work stations.

[0036] See Figure 1 , Figure 5 and Figure 6 In this embodiment, the rotating frame 9 is equipped with four support rods 11, thus enabling four working stations. The dimension detection station in the dimension detection device C of this embodiment is one of them, and the other three working stations will be described below. By setting up such a transfer device E, the rotating frame 9 is intermittently rotated 90 degrees under the drive of the first drive mechanism 10 according to a preset time, thereby realizing the transfer of the sole to be tested between different working stations. The different working stations are also arranged in a rectangular shape, which makes the structure of the entire sole quality inspection machine more compact and reduces the space occupied.

[0037] Before conducting appearance defect inspection and size measurement on the sole to be tested, the model of the sole is first identified to determine which type of sole it belongs to. Then, appearance defect inspection and size measurement are carried out on the sole so that the corresponding standard can be used for judgment during the quality inspection.

[0038] The identification device A in this embodiment includes an identification camera 6, a conveying mechanism 4, and a flipping mechanism 5. The conveying mechanism 4 includes a conveyor belt 401 and a second drive mechanism for moving the conveyor belt 401. The identification camera 6 is located above the conveyor belt 401. The conveyor belt 401 corresponds to one of the fixing components 12, and the flipping mechanism 5 is located between the fixing component 12 and the conveyor belt 401. The flipping mechanism 5 includes a clamping component 501, a third drive mechanism 502 for closing or opening the clamping component 501, and a fourth drive mechanism 503 for flipping the clamping component 501.

[0039] The top surface of the shoe sole is usually printed with a number, which can be used to identify the type of sole. Therefore, the sole to be tested is placed on the conveyor belt 401 with its top surface facing up. After the identification camera 6 identifies its model, the flipping mechanism 5 flips it over and transfers it to the fixing component 12, fixing it with its bottom surface facing up. In this embodiment, the conveyor mechanism 4 also serves to load the soles. After the soles are placed on the conveyor belt 401, subsequent quality inspections and collection / classification are automatically completed.

[0040] The flipping mechanism 5 of this embodiment also includes a fifth drive mechanism 504 for driving the clamping assembly 501 to move laterally and a sixth drive mechanism 505 for driving the clamping assembly 501 to move vertically. This allows the clamping assembly 501 to move between the conveyor belt 401 and the fixing assembly 12, and also to move vertically. This facilitates the clamping assembly 501 moving to a suitable position to clamp the shoe sole on the conveyor belt 401 and place it on the fixing assembly 12, improving the flexibility and adaptability of the clamping assembly 501. For specific implementations of the lateral and vertical movement of the clamping assembly 501, refer to existing linear movement mechanisms. Linear guide modules (such as guide rails or sliders) can also be used to improve the stability of the movement. Figure 2 , Figure 4 and Figure 5 As shown.

[0041] The clamping assembly 501 in this embodiment includes two clamping members, the third drive mechanism 502 can be a finger cylinder, and the fourth drive mechanism 503 can be a rotary cylinder. The conveying mechanism 4 in this embodiment can refer to a prior art belt conveyor, such as... Figure 2 , Figure 4 and Figure 5 As shown. In addition, this embodiment is provided with multiple sets of levers 402 on the conveyor belt 401. The levers 402 are used to limit the movement of the shoe soles to improve the stability during conveying and to separate the individual shoe soles on the conveyor.

[0042] Furthermore, the identification device A also includes a positioning mechanism, which comprises two positioning members 506 and a seventh drive mechanism 507 that drives the two positioning members 506 to move closer or further apart. The two positioning members 506 are located on both sides of the conveyor belt 401 and are arranged opposite each other at the end of the conveyor belt 401. When the shoe sole that has completed model identification moves to the end of the conveyor belt 401, the two positioning members 506 move closer to each other to position the shoe sole, so that the clamping component 501 of the flipping mechanism 5 can accurately clamp the shoe sole and flip it to the fixing component 12. The positioning mechanism ensures that the position of the shoe sole transferred to the fixing component 12 remains consistent each time.

[0043] Furthermore, in this embodiment, the two positioning elements 506 can be simultaneously adapted and connected to a bidirectional lead screw. The seventh drive mechanism 507 drives the bidirectional lead screw to rotate in both directions, thereby controlling the synchronous and opposite or backward movement of the two positioning elements 506. Of course, the driving method of the two positioning elements 506 can also be independent, that is, two seventh drive mechanisms 507 can be set to control the movement of the two positioning elements 506 separately.

[0044] See Figures 7-11The appearance inspection device B in this embodiment includes two sets of image acquisition devices 1. The two sets of image acquisition devices 1 are arranged opposite to each other and form an appearance inspection station between the two sets of image acquisition devices 1 for accommodating the shoe sole 3 to be tested. The shoe sole 3 to be tested is located in the appearance inspection station. Each set of image acquisition devices 1 includes two sets of acquisition modules, and each set of acquisition modules includes several cameras; the camera of one set of acquisition modules is higher than the shoe sole 3 to be tested, and the camera of the other set of acquisition modules is lower than the shoe sole 3 to be tested; all cameras take pictures of the shoe sole 3 to be tested from different angles.

[0045] Furthermore, each acquisition module includes an intermediate camera 103, a front camera 101, and a rear camera 102. The front camera 101, intermediate camera 103, and rear camera 102 are arranged along the length of the sole 3 to be tested, and the intermediate camera 103 corresponds to the middle of the appearance inspection station. The front camera 101 and rear camera 102 are located on both sides of the intermediate camera 103, and the front camera 101 and rear camera 102 are located on the front and rear sides of the sole 3 to be tested and are tilted towards the sole 3 to be tested.

[0046] See Figures 7-11 In this embodiment, the positions of the middle camera 103, front camera 101, and rear camera 102 in each acquisition module correspond to each other. The four acquisition modules are located at the upper left, lower left, upper right, and lower right of the sole 3 to be tested, respectively. Combined with the positional layout of each camera, the shape of the sole can be clearly captured for image recognition and judgment. In this embodiment, the middle camera 103 is fixed in position and can therefore be fixedly connected to the frame by means of a connecting rod or connecting frame (not shown in the figure).

[0047] In this embodiment, each acquisition module also includes an adjustment mechanism for driving the front camera 101 and the rear camera 102 to move along the length direction of the sole 3 to be tested; under the action of the adjustment mechanism, the distance between the front camera 101 and the rear camera 102 is adjusted according to the type of sole 3 to be tested; the intermediate camera 103 is fixed to the frame.

[0048] Furthermore, the adjustment mechanism includes a bidirectional lead screw 105, two moving blocks 104, and a power source 106 for driving the bidirectional lead screw 105 to rotate; the two moving blocks 104 are respectively threadedly connected to the two threaded sections of the bidirectional lead screw 105. In this embodiment, the front camera 101 and the rear camera 102 are respectively connected to the two moving blocks 104, and the front camera 101 and the rear camera 102 can be connected to the moving blocks 104 by means of connecting rods or connecting frames (not shown in the figure). Driven by the power source 106, the bidirectional lead screw 105 rotates, causing the front camera 101 and the rear camera 102 to move closer to or further away from each other. In this embodiment, the power source 106 can be a motor, and the motor can be connected to the bidirectional lead screw 105 by belt drive, gear drive, or other transmission methods. Figure 10In this embodiment, the power source 106 and the bidirectional lead screw 105 are driven by belt transmission. A driven pulley can be set on the bidirectional lead screw 105, and a driving pulley is connected to the main shaft of the power source 106. A belt is wrapped between the driven pulley and the driving pulley, thereby realizing the rotation of the bidirectional lead screw 105 driven by the power source 106 (the belt is not shown in the figure).

[0049] In addition, the front camera 101 and the rear camera 102 in this embodiment can also be adjusted in position through independent adjustment mechanisms. The use of a bidirectional lead screw 105 in this embodiment improves the synchronization of movement between the front camera 101 and the rear camera 102 within the same acquisition module, facilitates adjustment, and simplifies the structure.

[0050] After the identification device A identifies and confirms the model of the sole 3 under test, it transmits this information to the control system of this embodiment. When the sole 3 is transferred to the appearance inspection station, the adjustment mechanisms of each acquisition module adjust the positions of the front camera 101 and the rear camera 102. The front camera 101 and the rear camera 102 move closer to each other or further apart until they reach the preset optimal shooting point, and then the sole 3 under test is photographed. Therefore, this embodiment, through the setting of the adjustment mechanism, can improve the flexibility and adaptability of the device, enabling appearance inspection of soles of different batches and models, and capturing optimal images for different types of soles, which is beneficial for improving inspection accuracy.

[0051] Furthermore, the adjustment mechanism also includes a guide assembly, which comprises a guide rail 108 and two sliders 107. The guide rail 108 is fixed to the frame, and the two sliders 107 are matched and installed with the guide rail 108. Two moving blocks 104 are respectively connected to the two sliders 107. The guide assembly further enhances the stability of the moving blocks 104, the front camera 101, and the rear camera 102.

[0052] The appearance inspection device B in this embodiment is also equipped with two sets of lighting devices 2, which are arranged opposite to each other and correspond one-to-one with the two sets of image acquisition devices 1. A channel is formed between the two sets of image acquisition devices 1 and the two sets of lighting devices 2, and the appearance inspection station is located in the channel so that the fixing component 12 of the transfer device E can use the channel to enter or leave the appearance inspection station. Figures 7-9 As shown, the arrangement of two sets of image acquisition devices 1 and two sets of lighting devices 2 facing each other creates a space between them, forming a passage. The advantage of this layout is that it allows the sole to be tested 3 to enter or exit from the front and rear sides, facilitating coordination with other workstations in sole quality inspection and simplifying the transfer or transport of the sole. For example, the sole can be transferred linearly or by rotation; in this embodiment, the passage between the two image acquisition devices 1 meets the requirements.

[0053] Each lighting device 2 includes several lighting elements, all arranged vertically and facing the sole 3 to be tested at the appearance inspection station. In this embodiment, the lighting elements can be existing lighting technologies, such as LED lights. Specifically, each lighting device 2 in this embodiment includes a bracket 201 and, from top to bottom, an upper lighting element 202, a middle lighting element 203, and a lower lighting element 204 fixed to the bracket 201. The upper lighting element 202 is higher than the sole 3 to be tested, the middle lighting element 203 corresponds to the side of the sole 3, and the lower lighting element 204 is lower than the sole 3. By illuminating the sole with lighting elements of different heights, and simultaneously capturing images of the sole from different angles, the accuracy of image acquisition is improved, thereby enhancing image recognition accuracy.

[0054] As another implementation, the number of lighting elements can be flexibly adjusted according to the actual situation. For example, an upper lighting element 202 and a lower lighting element 204 can be provided, while the intermediate lighting element 203 can be omitted. Alternatively, only the intermediate lighting element 203 can be retained.

[0055] The appearance inspection device B in this embodiment can be paired with an identification system, which can refer to the existing image recognition system. It can use the existing image recognition algorithm to identify and judge the collected image, accurately assess whether there are defects in the appearance of the shoe sole, and output the results.

[0056] See Figures 1-3 The size detection device C in this embodiment includes two acquisition modules 13 that use the structured light principle. One acquisition module 13 is tilted towards the front end of the bottom surface of the sole to be tested, and the other acquisition module 13 is tilted towards the rear end of the bottom surface of the sole to be tested.

[0057] The sole of the shoe being tested faces upwards, and both data acquisition modules 13 are positioned above the sole. For example... Figures 1-3 As shown, this embodiment employs two acquisition modules 13, fixed by a support frame 14, both positioned above the sole to be measured. This arrangement facilitates the fixation of the acquisition modules 13 and allows them to project specific light patterns (e.g., striped light) onto the sole surface. In this embodiment, both acquisition modules 13 are tilted and positioned towards the front and rear ends of the sole, respectively. This ensures that the light pattern is projected onto the front and rear ends of the sole, allowing the camera in the acquisition module 13 to more accurately capture the changes in the light pattern at the front and rear ends of the sole. Combined with the corresponding point cloud algorithm recognition, the length of the sole to be measured can be accurately determined. The acquisition modules 13 in this embodiment can be selected from existing 3D structured light cameras integrating binocular cameras and striped structured light, or other existing structured light devices.

[0058] In addition, this embodiment can use a larger number of acquisition modules 13 for measuring the sole size, and their positions can be flexibly adjusted according to the actual situation. However, at least two acquisition modules 13 should be tilted towards the front and rear ends of the sole to ensure accurate identification of the bending or sloping position of the front and rear ends of the sole.

[0059] The receiving device D of this embodiment includes a receiving mechanism 7 for transporting shoe soles that have completed quality inspection, a plurality of receiving boxes 8, and an eighth drive mechanism for driving the receiving mechanism 7 to move between the plurality of receiving boxes 8. The shoe soles to be received and the plurality of receiving boxes 8 are located on both sides of the receiving mechanism 7.

[0060] See Figures 4-6 In this embodiment, the receiving mechanism 7 is similar to the flipping mechanism 5. It uses a clamping and flipping method to remove the inspected shoe soles from the fixing component 12 and flip them to place them in the corresponding receiving box 8. Of course, the receiving mechanism 7 can also adopt other implementation methods, such as using an adsorption method to clamp the shoe soles. Multiple receiving boxes 8 are arranged along the moving direction of the receiving mechanism 7, and can be divided into defective receiving boxes 8, oversized receiving boxes 8, overshort-sized receiving boxes 8, qualified receiving boxes 8, etc., which can be flexibly adjusted. The eighth driving mechanism is used to drive the linear movement of the receiving mechanism 7. It can be implemented by using a lead screw and nut slider (not shown in the figure), and can also be used with a linear guide module. The specific implementation methods can be varied and are not limited to the illustrated method.

[0061] Example 2 See Figure 12 This embodiment discloses a sole quality inspection production line including the sole quality inspection machine of Embodiment 1, and the sole quality inspection production line also includes a sorting and conveying mechanism.

[0062] The sorting and conveying mechanism includes a conveyor belt 15, multiple unloading parts 16, and multiple receiving ports 17. The inlet end of the conveyor belt 15 is connected to the outlet of the shoe sole quality inspection machine. The outlet of the shoe sole quality inspection machine can be flexibly selected. According to the implementation method of Embodiment 1, the inlet end of the conveyor belt 15 can be arranged side by side with multiple receiving boxes. The receiving boxes are mainly used to collect unqualified products. Shoe sole products that are determined to be qualified after appearance defect inspection and size inspection are transferred to the inlet end of the conveyor belt 15 through the receiving device D. Combined with the identification device A to identify the type of shoe sole, the qualified shoe soles are sorted and classified.

[0063] Multiple receiving ports 17 are located on both sides of the conveyor belt 15, and the receiving ports 17 on both sides of the conveyor belt 15 are staggered. Multiple dropping components 16 correspond one-to-one with the multiple receiving ports 17. When the shoe sole on the conveyor belt 15 moves to the corresponding receiving position, the dropping component 16 transfers the shoe sole to the corresponding receiving port 17. The conveyor belt 15 can extend in a straight line, or it can extend in a curved or U-shape. When the shoe sole is transferred to the corresponding receiving port 17 by the dropping component 16, the rotation of the dropping component 16 can actuate the shoe sole, pushing it into the receiving port 17 on the side of the conveyor belt 15.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A shoe sole quality inspection machine, characterized in that, The device includes a size detection device for detecting the size of shoe soles, the size detection device comprising at least two acquisition modules employing the principle of structured light; one acquisition module is tilted toward the front end of the bottom surface of the shoe sole to be tested, and the other acquisition module is tilted toward the rear end of the bottom surface of the shoe sole to be tested.

2. The shoe sole quality inspection machine according to claim 1, characterized in that, The bottom surface of the shoe sole to be tested is facing upwards, and each of the aforementioned data acquisition modules is located above the shoe sole to be tested.

3. The shoe sole quality inspection machine according to claim 1, characterized in that, The shoe sole quality inspection machine also includes a transfer device, which includes at least one fixed component and a first drive mechanism for moving the fixed component. The shoe sole to be tested is fixed on the fixed component, and the first drive mechanism drives the fixed component to move so as to move the shoe sole to be tested into or out of the size detection station of the size detection device.

4. The shoe sole quality inspection machine according to claim 3, characterized in that, The fixing component includes multiple suction cups, which are connected to a negative pressure device, and the sole of the shoe to be tested is adsorbed onto the multiple suction cups. The transfer device also includes a rotating frame, which has multiple radially extending support rods, each of which is equipped with the fixing component; the first driving mechanism drives the rotating frame to rotate so as to transfer the shoe sole to be tested to different work positions.

5. The shoe sole quality inspection machine according to any one of claims 1-4, characterized in that, The shoe sole quality inspection machine also includes an identification device for identifying the model of the shoe sole to be tested, the identification device including an identification camera; along the transfer sequence of the shoe sole to be tested, the identification device is located upstream of the size detection device.

6. The shoe sole quality inspection machine according to claim 5, characterized in that, The identification device further includes a conveying mechanism and a flipping mechanism; the conveying mechanism includes a conveyor belt and a second driving mechanism for driving the conveyor belt to move, and the identification camera is located above the conveyor belt; the conveyor belt corresponds to one of the fixed components, and the flipping mechanism is located between the fixed component and the conveyor belt; The flipping mechanism includes a clamping assembly, a third driving mechanism for driving the clamping assembly to close or open, and a fourth driving mechanism for driving the clamping assembly to flip. The sole of the shoe to be tested is placed on the conveyor belt with its top surface facing up. After the identification camera identifies its model, the flipping mechanism flips it over and transfers it to the fixing component, where it is fixed with its bottom surface facing up.

7. The shoe sole quality inspection machine according to claim 6, characterized in that, The identification device further includes a positioning mechanism, which includes two positioning elements and a seventh driving mechanism for driving the two positioning elements to move closer or further apart from each other. The two positioning elements are located on both sides of the conveyor belt and are arranged opposite to each other at the end of the conveyor belt.

8. The shoe sole quality inspection machine according to any one of claims 1-4, characterized in that, The shoe sole quality inspection machine also includes an appearance inspection device, which includes two sets of image acquisition devices. The two sets of image acquisition devices are arranged opposite to each other and form an appearance inspection station between the two sets of image acquisition devices. The shoe sole to be tested is located at the appearance inspection station. Each set of image acquisition devices includes two sets of acquisition modules, and each set of acquisition modules includes several cameras; the camera of one set of acquisition modules is higher than the sole of the shoe to be tested, and the camera of the other set of acquisition modules is lower than the sole of the shoe to be tested. Each acquisition module includes a middle camera, a front camera, and a rear camera. The front camera, middle camera, and rear camera are arranged along the length of the sole to be tested. The middle camera corresponds to the middle of the appearance inspection station. The front camera and the rear camera are located on both sides of the middle camera. The front camera and the rear camera are located on the front and rear sides of the sole to be tested and are tilted towards the sole to be tested.

9. The shoe sole quality inspection machine according to any one of claims 1-4, characterized in that, The shoe sole quality inspection machine also includes a receiving device; the receiving device includes a receiving mechanism for transporting shoe soles that have completed quality inspection, multiple receiving boxes, and an eighth driving mechanism for driving the receiving mechanism to move between the multiple receiving boxes, with the shoe soles to be received and the multiple receiving boxes located on both sides of the receiving mechanism.

10. A shoe sole quality inspection production line, characterized in that, The invention includes a shoe sole quality inspection machine and a sorting and conveying mechanism as described in any one of claims 1-9; the sorting and conveying mechanism includes a conveyor belt, multiple unloading components, and multiple receiving ports; the inlet end of the conveyor belt is connected to the outlet of the shoe sole quality inspection machine, the multiple receiving ports are respectively located on both sides of the conveyor belt, and the receiving ports on both sides of the conveyor belt are staggered; the multiple unloading components correspond one-to-one with the multiple receiving ports; when the shoe sole on the conveyor belt moves to the corresponding receiving position, the unloading component transfers the shoe sole to the corresponding receiving port.

Images