Laser detection method and device for tenon-and-mortise building block toy

Abstract

The invention relates to the technical field of toy processing and detection, and particularly discloses a laser detection method and equipment for a tenon-and-mortise building block toy, and the method comprises the steps of equipment installation, data acquisition, size extraction, defect detection, judgment, defective product blowing-out and rechecking. The equipment comprises a supporting frame and a detector, the supporting frame is fixed to the outer side of the building block toy conveying line, the detector is mounted on the inner side of the top of the supporting frame, a mounting frame is mounted at the bottom of the inner side of the supporting frame in a lifting mode, and a first supporting shaft and a second supporting shaft are symmetrically and rotationally connected to the inner side of the top of the mounting frame; an air pump is arranged below the bottom of the mounting frame, and the output end of the air pump communicates with a copper pipe blowing head with the end facing the conveying line. The laser detection method and equipment for the tenon-and-mortise building block toys can be rapidly matched with a toy production line to be additionally installed or independently used, the use stability can be rapidly detected for multiple faces of the toys, defective products can be rapidly treated, and the production and detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of toy manufacturing technology, and more particularly to the field of mortise and tenon toy manufacturing and testing technology, specifically a laser testing method and equipment for mortise and tenon building block toys. Background Technology

[0002] Mortise and tenon building block toys are assembled from various components through tenon and mortise joints. Typical forms include head components, torso, upper limbs, lower limbs, and back jackets. Moreover, there are mortise blocks and connecting tenons of various geometric shapes and sizes within the same kit. The assembly relationship is complex and highly interchangeable. Such products have high requirements for dimensional consistency, fitting clearance and assembly accuracy. Therefore, it is generally necessary to inspect the size, flatness and surface defects when manufacturing mortise and tenon building block toys.

[0003] For example, the invention disclosed in patent application CN108120386StabilityB discloses a laser inspection fixture. The laser inspection fixture includes a base, a laser, a detector, an adjustment device, two position sensors, and a control component. A conveyor belt is provided on the base, conveying the workpiece to be inspected. The laser and detector are symmetrically arranged on both sides of the base, perpendicular to the direction of workpiece movement. The adjustment device is fixed to the base to press the workpiece and prevent it from moving forward. The two position sensors are symmetrically fixed to the base, located at the ends of the workpiece's direction of movement. The control component is electrically connected to the laser, detector, adjustment device, and position sensors. This invention utilizes a laser and detector to measure the height of the workpiece, and the adjustment device can press the workpiece during measurement while preventing it from moving forward at the ends of its direction of movement. This solves the problems of high cost, low efficiency, and low accuracy associated with manual inspection.

[0004] For example, the invention with authorization announcement number CN108759688StabilityB relates to a laser inspection device for the shape of a skateboard brick, including a transmission system and a detection system. The transmission system includes a housing, side plates, a support shaft, a sprocket shaft, a sprocket, and an annular transmission belt. The detection system includes a bracket, a screw, a slider, and a laser sensor. The annular transmission belt constitutes the Y-axis detection system, the movement of the slider on the screw constitutes the X-axis detection system, and the vertically downward signal path of the laser sensor A on the slider constitutes the Z-axis detection system. The skateboard brick to be inspected is placed on the annular transmission belt and transported to a designated position. The system begins to collect the values ​​of the X, Y, and Z systems at fixed time intervals. By calculation, all coordinate values ​​of the skateboard brick in the system can be obtained. Based on the fact that all skateboard products have holes that allow molten steel to pass through, using this feature and the above calculation method, the key dimensions of the skateboard product, such as length, width, height, and hole diameter, can be calculated, thereby realizing automatic laser inspection of the dimensions of the skateboard product.

[0005] However, based on the actual performance of mortise and tenon building block toys in current production processes, the use of current laser inspection methods and equipment on building block toy production lines still has certain drawbacks, such as:

[0006] 1. It cannot be directly adapted to different building block toy production lines for installation or for individual sampling inspection. It is not convenient to adjust the position of the laser sensor probe for different production lines, which is not conducive to improving the detection efficiency.

[0007] 2. When performing multi-face inspection of building block toys, it is generally necessary to install multiple laser probes, which not only increases the cost, but also requires space adjustment for some production lines, which is cumbersome and complicated. It is not possible to quickly push down or turn the building block toys directly, which is not conducive to the use of multi-face inspection.

[0008] 3. It is not convenient to process defective products quickly, and the production line needs to be extended to sort out defective products, which affects processing efficiency.

[0009] Therefore, we propose a laser inspection method and equipment for mortise and tenon building block toys to solve the problems mentioned above. Summary of the Invention

[0010] The purpose of this invention is to provide a laser inspection method and equipment for mortise and tenon building block toys, in order to solve the problems mentioned in the background art that the current laser inspection methods and equipment for mortise and tenon building block toys cannot be quickly adapted for addition or used alone, are not convenient for rapid inspection of multiple sides of the toy, and are not convenient for quick processing of defective products.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a laser inspection method for mortise and tenon building block toys, the laser inspection method comprising the following steps:

[0012] Step 1: Equipment installation. Fix the laser measurement sensor to a stable bracket. Automatedly transport building block toys via a conveyor line and scan the building block toys using the laser measurement sensor.

[0013] Step 2: Data acquisition. The laser sensor is used to collect 3D point cloud data of the building block toys on the conveyor line. At the same time, the pusher plate pushes the building block toys over and aligns them to obtain multi-faceted size and surface morphology information.

[0014] Step 3: Dimension extraction, based on point cloud data analysis of the geometric dimensions of key parts such as tenons and mortises;

[0015] Step 4: Defect detection. By comparing the algorithm with the standard model, defects such as dimensional deviations, surface unevenness, and assembly position misalignment are identified.

[0016] Step 5: Determination. Based on the preset tolerance, automatically classify good products / defective products and trigger the corresponding execution instructions;

[0017] Step Six: Defective products are blown out, and good products continue to be conveyed along the conveyor belt. When a defective product is detected, the air pump is started to blow the defective product away from the conveyor line through the blowpipe.

[0018] Step 7: Verification. Defective products blown out are manually or subjected to secondary inspection and verification to ensure sorting accuracy.

[0019] The present invention also provides another technical solution: a laser inspection device for implementing a laser inspection method for mortise and tenon building block toys, comprising a support frame and a detector. The support frame is fixed to the outside of the building block toy conveyor line. The detector is installed on the top inner side of the support frame. A mounting frame is lifted and installed on the bottom inner side of the support frame. A first support shaft and a second support shaft are symmetrically rotatably connected to the top inner side of the mounting frame. Silent contact wheels for lifting the conveyor line are fixed on the outside of the first support shaft and the second support shaft. An air pump is provided at the bottom of the mounting frame. The output end of the air pump is connected to a copper tube nozzle with its end facing the conveyor line. A transmission mechanism is installed on the bottom inner side of the mounting frame, and a push plate that slides based on the transmission mechanism is provided on the outside of the mounting frame. A front plate for pushing the building block toy is connected to the inside of the push plate.

[0020] Furthermore: a fixing rod is vertically fixed to the inner bottom surface of the support frame, and a fixing frame is telescopically connected to the top of the fixing rod. Fixing holes are equally spaced at the bottom of the fixing frame and the top of the fixing rod, and the fixing rod and the fixing frame are fixedly connected by screws. The bottom end of the mounting bracket is fixedly installed on the top end of the fixing frame.

[0021] Furthermore: a drive motor is fixedly installed at the top of the support frame, and the output end of the drive motor is connected to a lifting screw that is vertically rotatably installed inside the support frame. A fixed platform connected to the bottom end of the lifting screw is fixed in the middle of the support frame, and a connecting frame is connected to the outside of the lifting screw. The detector is installed inside the connecting frame, and adjustment holes are symmetrically opened on the inner side of the connecting frame. Fixed plates are symmetrically protruding on the side of the detector, and the fixed plates are fixed to the adjustment holes by bolts.

[0022] Furthermore, the support frame is symmetrically and fixedly equipped with slide rails on its sides, and the inner side of the connecting frame is fixed with a slide table that is slidably connected to the slide rails.

[0023] Furthermore: the air pump is fixedly installed on the top and bottom surfaces of the mounting frame, the output end of the air pump is fixedly connected to a connecting pipe, the top end of the connecting pipe is connected to a copper tube nozzle that can be bent and shaped, and the bottom of the copper tube nozzle is fixedly connected to the outside of the mounting frame through a connecting plate.

[0024] Furthermore: the transmission mechanism includes:

[0025] The drive wheel is rotatably mounted on the middle of the outer side of the mounting frame. The top of the first support shaft, the second support shaft, and the drive wheel are all integrally fixedly connected to pulleys. The outer side of the pulleys is connected by a transmission belt.

[0026] A turntable is rotatably mounted on the inner bottom of the mounting frame. A driven wheel is integrally fixed on the outer bottom of the turntable, and the driven wheel is vertically connected to the drive wheel.

[0027] A protruding post is provided on the top side of the turntable. The outer side of the protruding post is connected to the push plate through a connecting frame. The protruding post pushes and pulls the connecting frame cyclically as it rotates with the turntable.

[0028] Furthermore: the connecting frame includes:

[0029] The card frame is fitted onto the outside of the protruding post, and a first crossbar that is slidably inserted into the inside of the mounting bracket is vertically fixed to the outside of the card frame.

[0030] A vertical rod is perpendicularly distributed between the vertical rod and the first horizontal rod. A first fixing clip is slidably connected to the outer side of the first horizontal rod, and the vertical rod is slidably connected to the inner side of the first fixing clip.

[0031] The second fixing clip is perpendicular to the vertical bar and parallel to the first horizontal bar. The second horizontal bar is slidably connected to the top outer side of the vertical bar, and the second fixing clip is vertically slidably connected to the inner side of the second horizontal bar.

[0032] The push plate is vertically fixed to the top of the second fixing clamp.

[0033] Furthermore, a fixing cylinder is symmetrically fixedly installed on the side of the card frame, and a guide rod fixed inside the fixing cylinder is connected through the fixing cylinder.

[0034] Furthermore: the top end of the front plate is rotatably connected to the top end of the push plate, the end of the front plate is rotatably connected to a rod, the end of the push plate is rotatably installed with a connecting block, the top end of the rod is correspondingly connected through the interior of the connecting block, and the top end of the connecting block is connected to a fixing bolt.

[0035] Compared with the prior art, the present invention has at least the following beneficial effects: the laser inspection method and equipment for mortise and tenon building block toys can be quickly adapted to toy production lines for addition or use alone, facilitates rapid inspection of multiple aspects of toys, has stable use, can quickly handle defective products, and improves production and inspection efficiency.

[0036] 1. This solution includes a mounting frame, a first support shaft, a second support shaft, and silent contact wheels. The adjustable mounting frame allows the support frame to be fixed to the outside of the production line. The first and second support shafts, along with the silent contact wheels, support the toy conveyor belt, ensuring smooth transport of the toy as it passes the detector and improving detection accuracy.

[0037] 2. This solution includes a lifting screw, a connecting frame, an adjustment hole, and a fixing plate. The height of the connecting frame can be raised or lowered by driving the lifting screw. The detector is positioned by sliding above the connecting frame and being fixed with bolts through the adjustment hole and the fixing plate. This allows for adjustment to different placement positions of toys on the toy conveyor belt, facilitating alignment detection.

[0038] 3. This solution is equipped with an air pump, connecting pipe and copper tube blower. Driven by the air pump, and connected by the connecting pipe and copper tube blower, air can be blown out of the production line to facilitate the rapid collection of defective products.

[0039] 4. This solution includes a drive wheel, a turntable, a protruding column, and a push plate. The drive wheel, in conjunction with the first and second support shafts, drives the turntable to rotate the protruding column. The protruding column, connected to the push plate via a connecting frame, enables the push plate to slide back and forth. This allows the push plate to push the toy while the conveyor belt is conveying it, thus aligning the toy and simultaneously tilting and flipping it over.

[0040] Meanwhile, the connecting frame consists of a first horizontal bar, a vertical bar, and a second fixing clamp that can be slidably adjusted, which can adjust the height of the push plate to suit different toy heights, making it easy to adapt to specific uses;

[0041] 5. This design includes a front plate, a rod, and a connecting block. By extending and retracting the rod inside the connecting block, and by rotating the connecting block inside the push plate and rotating the front plate and the rod, the angle of the front plate outside the push plate can be easily adjusted, making it easier to push and use the toy. Attached Figure Description

[0042] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0043] Figure 1 This is a schematic diagram of the laser detection method of the present invention;

[0044] Figure 2 This is a schematic diagram of the overall front structure of the present invention;

[0045] Figure 3 This is a schematic diagram of the overall elevation angle structure of the present invention;

[0046] Figure 4 This is a schematic diagram of the overall rear structure of the present invention;

[0047] Figure 5 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0048] Figure 6 This is a schematic diagram of the overall disassembled structure of the present invention;

[0049] Figure 7 This is a schematic diagram of the disassembled structure of the transmission mechanism and connecting frame of the present invention;

[0050] Figure 8 This is a cross-sectional view of the connection between the front plate and the push plate of the present invention.

[0051] In the diagram: 1. Support frame; 2. Fixing rod; 3. Fixing frame; 4. Fixing hole; 5. Mounting bracket; 6. First support shaft; 7. Second support shaft; 8. Silent contact wheel; 9. Drive motor; 10. Lifting screw; 11. Fixing platform; 12. Protective shell; 13. Connecting frame; 14. Detector; 15. Adjustment hole; 16. Fixing plate; 17. Slide rail; 18. Slide table; 19. Air pump; 20. Connecting pipe; 21. 21. Copper tube blower head; 22. Connecting plate; 23. Drive wheel; 24. Pulley; 25. Transmission belt; 26. Turntable; 27. Driven wheel; 28. Protruding post; 29. ​​Clip frame; 30. First horizontal bar; 31. First fixing clamp; 32. Vertical bar; 33. Second horizontal bar; 34. Second fixing clamp; 35. Push plate; 36. Fixing cylinder; 37. Guide rod; 38. Front plate; 39. Insert rod; 40. Connecting block; 41. Fixing bolt. Detailed Implementation

[0052] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0053] Please see Figure 1 The present invention provides the following technical solution:

[0054] A laser inspection method for mortise and tenon building block toys, comprising the following steps:

[0055] Step 1: Equipment installation. Fix the laser measurement sensor to a stable bracket. Automatedly transport building block toys via a conveyor line and scan the building block toys using the laser measurement sensor.

[0056] Step 2: Data acquisition. The laser sensor is used to collect 3D point cloud data of the building block toys on the conveyor line. At the same time, the pusher plate pushes the building block toys over and aligns them to obtain multi-faceted size and surface morphology information.

[0057] Step 3: Dimension extraction. Based on point cloud data, analyze the geometric dimensions of key parts such as tenons and mortises, including length, width, and fit clearance.

[0058] Step 4: Defect detection. By comparing the algorithm with the standard model, defects such as dimensional deviations, surface unevenness, and assembly position misalignment are identified.

[0059] Step 5: Determination. Based on the preset tolerance, automatically classify good products / defective products and trigger the corresponding execution instructions;

[0060] Step Six: Defective products are blown out, and good products continue to be conveyed along the conveyor belt. When a defective product is detected, the air pump is started to blow the defective product away from the conveyor line through the blowpipe.

[0061] Step 7: Verification. Defective products blown out are manually or subjected to secondary inspection and verification to ensure sorting accuracy.

[0062] By adopting the above technical solution, multi-faceted rapid and accurate inspection of mortise and tenon building block toys can be completed automatically, achieving a high degree of integration of the entire process from scanning to sorting, reducing manual intervention, and forming a data closed loop in the verification process, which helps to continuously optimize production quality.

[0063] Please see Figures 2-8 The present invention also provides the following technical solutions:

[0064] A laser inspection device for mortise and tenon building block toys for implementing laser inspection methods includes: a support frame 1, a fixing rod 2, a fixing frame 3, a fixing hole 4, a mounting frame 5, a first support shaft 6, a second support shaft 7, a silent contact wheel 8, a drive motor 9, a lifting screw 10, a fixing platform 11, a protective shell 12, a connecting frame 13, a detector 14, an adjustment hole 15, a fixing plate 16, a slide rail 17, a slide table 18, an air pump 19, a connecting pipe 20, a copper pipe blower 21, a connecting plate 22, a drive wheel 23, a pulley 24, a transmission belt 25, a turntable 26, a driven wheel 27, a protruding column 28, a clamping frame 29, a first horizontal bar 30, a first fixing clamp 31, a vertical bar 32, a second horizontal bar 33, a second fixing clamp 34, a push plate 35, a fixing cylinder 36, a guide rod 37, a front plate 38, an insertion rod 39, a connecting block 40, and a fixing bolt 41.

[0065] Among them: such as Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6In the middle, the support frame 1 is fixed to the outside of the building block toy conveyor line, the detector 14 is installed on the top inner side of the support frame 1, the mounting frame 5 is installed at the bottom inner side of the support frame 1, the top inner side of the mounting frame 5 is symmetrically rotatably connected to the first support shaft 6 and the second support shaft 7, the outside of the first support shaft 6 and the second support shaft 7 are fixed with silent contact wheels 8 for lifting the conveyor line, the bottom of the mounting frame 5 is provided with an air pump 19, the output end of the air pump 19 is connected to a copper tube blower 21 with the end facing the conveyor line, the bottom inner side of the mounting frame 5 is provided with a transmission mechanism, and the outside of the mounting frame 5 is provided with a push plate 35 that slides based on the transmission mechanism, the inside of the push plate 35 is connected to a front plate 38 for pushing the building block toy.

[0066] In a specific application scenario, the support frame 1 is fixed to one side of the conveyor belt of the mortise and tenon building block toy production line. By adjusting the installation height of the mounting frame 5, the first support shaft 6 and the second support shaft 7, which are rotatably mounted on the top inner side of the mounting frame 5, contact the bottom surface of the conveyor belt through the silent contact wheel 8. This allows the first support shaft 6 and the second support shaft 7 to rotate during the conveyor belt transport process through the frictional contact between the silent contact wheel 8 and the conveyor belt, providing stable support for the conveyor belt. This ensures the stability of the conveyor belt as it transports the mortise and tenon building block toy into the area below the detector 14, improving detection accuracy. The detector 14 then detects the size and flatness of the mortise and tenon building block toy, and the processor compares the data to determine if it is a good product. If the mortise and tenon building block toy is found to be a good product, then... If the mortise and tenon building block toy is found to be defective after inspection, the air pump 19 is activated. Through the connection between the air pump 19 and the copper tube blower 21, air is blown through the copper tube blower 21 to blow the defective toy to the other side of the conveyor belt. A defective toy collection device is set up on the other side of the conveyor belt for centralized review. At the same time, while the conveyor belt continues to transport the toy, the push plate 35 is driven to slide back and forth in a cycle through the transmission mechanism inside the mounting frame 5, which is connected to the first support shaft 6 and the second support shaft 7. The push plate 35 can be used to move the mortise and tenon building block toy closer to the probe of the detector 14 through the front plate 38 connected to the front side of the push plate 35, so as to ensure that the detection is aligned. At the same time, the mortise and tenon building block toy that has completed the top surface inspection can be pushed over to perform side inspection, so as to quickly complete the inspection of multiple sides.

[0067] The above technical solution can be quickly and stably adapted to the production line, ensuring that the mortise and tenon building block toys smoothly enter the area below the set probe sensor, facilitating the processing of defective products, enabling rapid multi-faceted detection, ensuring detection accuracy, and improving detection efficiency.

[0068] Among them: such as Figure 2 , Figure 3 and Figure 6In the middle, a fixing rod 2 is vertically fixed on the inner bottom surface of the support frame 1, and a fixing frame 3 is telescopically connected to the top of the fixing rod 2. Fixing holes 4 are equally spaced at the bottom of the fixing frame 3 and the top of the fixing rod 2, and the fixing rod 2 and the fixing frame 3 are fixedly connected by screws. The bottom end of the mounting frame 5 is fixedly installed on the top of the fixing frame 3.

[0069] In specific application scenarios, the bottom end of the fixing frame 3 is directly inserted into the top end of the fixing rod 2, allowing for telescopic connection between the fixing frame 3 and the fixing rod 2. By aligning the fixing holes 4 evenly spaced inside the fixing rod 2 and the fixing frame 3, the height can be adjusted and fixed using bolts. This allows for adjustment of the installation height of the mounting frame 5, ensuring that the mounting frame 5 supports the conveyor belt via the first support shaft 6 and the second support shaft 7. This ensures adaptability to different production lines. Alternatively, by adjusting the height of the fixing frame 3, it can be used to place mortise and tenon building block toys for testing, facilitating independent experimental or sampling inspection use.

[0070] The above technical solution facilitates the adjustment of the installation height of the mounting bracket 5, making it convenient for the placement and testing of mortise and tenon building block toys, ensuring that they can be added to the production line or used independently.

[0071] Among them: such as Figure 2 , Figure 5 and Figure 6 In the support frame 1, a drive motor 9 is fixedly installed at the top. The output end of the drive motor 9 is connected to a lifting screw 10 that is vertically rotatably installed inside the support frame 1. A fixed platform 11 connected to the bottom end of the lifting screw 10 is fixed in the middle of the support frame 1. A connecting frame 13 is connected to the outside of the lifting screw 10. A detector 14 is installed inside the connecting frame 13. Adjustment holes 15 are symmetrically opened on the inner side of the connecting frame 13. Fixed plates 16 are symmetrically protruding on the side of the detector 14. The fixed plates 16 are fixed to the adjustment holes 15 by bolts. Slide rails 17 are symmetrically fixed on the side of the support frame 1. A slide table 18 that is slidably connected to the slide rails 17 is fixed inside the connecting frame 13.

[0072] In specific application scenarios, the starting of the drive motor 9 drives the lifting screw 10. The rotation of the lifting screw 10 between the support frame 1 and the fixed platform 11 drives the connecting frame 13 to adjust its height. The slide table 18 fixed on the side of the connecting frame 13 and the slide rail 17 fixed on the side of the support frame 1 are correspondingly slidably connected, ensuring the stability of the up-and-down sliding adjustment of the connecting frame 13. This facilitates the adjustment of the installation height of the detector 14, ensuring the distance between the detector 14 and the conveyor belt, thereby ensuring the detection accuracy of the distance between the probe and the mortise and tenon building block toy. At the same time, the outer side of the lifting screw 10 is equipped with a protective shell 12 that does not affect the adjustment of the connecting frame 13 by the lifting screw 10, which can increase protection and reduce the influence of impurities outside the mortise and tenon building block toy production line. The position of the probe can be adjusted by sliding the detector 14 inside the connecting frame 13. The positioning of the detector 14 can be achieved by tightening bolts through the correspondence between the adjustment hole 15 inside the connecting frame 13 and the fixed plate 16 fixed on the outside of the detector 14, thus facilitating the quick adjustment and use of the position of the detector 14.

[0073] The above technical solution facilitates the rapid adjustment of the position of the detector 14 for different production lines and different mortise and tenon building block toys, which helps to ensure detection accuracy and improve detection efficiency.

[0074] Among them: such as Figure 2 , Figure 4 , Figure 5 and Figure 6 The air pump 19 is fixedly installed on the top and bottom surface of the mounting bracket 3. The output end of the air pump 19 is fixedly connected to the connecting pipe 20. The top end of the connecting pipe 20 is connected to a copper tube nozzle 21 that can be bent and shaped. The bottom of the copper tube nozzle 21 is fixedly connected to the outside of the mounting bracket 5 through the connecting plate 22.

[0075] In specific application scenarios, after the data is detected by the detector 14, the processor performs data processing and judgment. When the mortise and tenon building block toy is determined to be defective, the air pump 19 is started. By utilizing the connection between the output end of the air pump 19 and the connecting pipe 20 and the copper tube blow head 21, the defective product can be blown out of the production line. The bottom of the copper tube blow head 21 is fixed to the outside of the mounting frame 5 via the connecting plate 22, which can ensure stability. At the same time, the copper tube blow head 21 can be bent and shaped, which makes it easy to adjust the alignment position of the copper tube blow head 21 according to the judgment time, so as to ensure that the defective product is blown out in time after the judgment is completed.

[0076] By adopting the above technical solution, defective products of mortise and tenon building block toys can be quickly blown out and collected, ensuring production line integration and improving the production efficiency of mortise and tenon building block toys.

[0077] Among them: such as Figure 2 , Figure 5 , Figure 6 and Figure 7In the transmission mechanism, there are: a drive wheel 23, a turntable 26, and a protruding post 28. The drive wheel 23 is rotatably mounted on the middle of the outer side of the mounting frame 5. The top of the first support shaft 6, the second support shaft 7, and the drive wheel 23 are all integrally fixedly connected to a pulley 24. The outer side of the pulley 24 is connected by a transmission belt 25. The turntable 26 is rotatably mounted on the bottom of the inner side of the mounting frame 5. The bottom outer side of the turntable 26 is integrally fixed with a driven wheel 27. The driven wheel 27 is vertically connected to the drive wheel 23. The protruding post 28 protrudes from the top side of the turntable 26. The outer side of the protruding post 28 is connected to the push plate 35 through a connecting frame. The protruding post 28 pushes and pulls the connecting frame cyclically by following the cyclic rotation of the turntable 26.

[0078] In specific application scenarios, the first support shaft 6 and the second support shaft 7 are in frictional contact with the bottom surface of the conveyor belt through the silent contact wheel 8, which can drive the first support shaft 6 and the second support shaft 7 to rotate synchronously. The pulley 24, which is integrally fixed to the outside of the first support shaft 6, the second support shaft 7 and the drive wheel 23, is driven by the transmission belt 25 to ensure that the drive wheel 23 rotates synchronously with the first support shaft 6 and the second support shaft 7. The bevel gear transmission structure between the drive wheel 23 and the driven wheel 27 drives the turntable 26 to rotate at the bottom inside of the mounting frame 5. The rotation of the turntable 26 drives the convex post 28 fixed on the top side to rotate eccentrically. The rotation of the convex post 28 drives the connecting frame to slide left and right in a cycle, thereby driving the push plate 35 connected to its top to slide left and right, and pushing the tenon and mortise building block toys on the surface of the conveyor belt.

[0079] Meanwhile, the connecting frame includes: a retaining frame 29, a vertical rod 32, and a second fixing clip 34. The retaining frame 29 is fitted onto the outside of the protruding post 28. A first horizontal rod 30 is vertically fixed to the outside of the retaining frame 29 and slidably inserted into the inside of the mounting frame 5. The vertical rod 32 is vertically distributed with the first horizontal rod 30. A first fixing clip 31 is slidably connected to the outside of the first horizontal rod 30. The vertical rod 32 is vertically slidably connected to the inside of the first fixing clip 31. The second fixing clip 34 is vertically distributed with the vertical rod 32 and is parallel to the first horizontal rod 30. A second horizontal rod 33 is slidably connected to the top outside of the vertical rod 32. The second fixing clip 34 is vertically slidably connected to the inside of the second horizontal rod 33. A push plate 35 is vertically fixed to the top of the second fixing clip 34. Fixing cylinders 36 are symmetrically fixedly installed on the sides of the retaining frame 29. A guide rod 37 fixed to the inside of the mounting frame 5 is connected through the inside of the fixing cylinder 36.

[0080] In specific application scenarios, the frame 29 is engaged with the outer side of the protrusion 28. When the protrusion 28 rotates left and right with the turntable 26, it can drive the frame 29 to move left and right. This allows the frame 29 to drive the first horizontal bar 30 to slide left and right on the outer side of the bottom of the mounting frame 5. At the same time, the first fixing clip 31 can slide left and right on the outer side of the first horizontal bar 30 to adjust the installation position of the vertical bar 32 on the outer side of the first horizontal bar 30, so as to avoid the vertical bar 32 affecting the sliding of the frame 29. Meanwhile, the position of the second horizontal bar 33 at the top of the vertical bar 32 can be adjusted to adjust the relative installation position of the second fixing clip 34 and the vertical bar 32. The installation positions of the first fixing clip 31 and the vertical bar 32, and the installation positions of the second horizontal bar 33 and the second fixing clip 34 are also adjustable. This allows the sliding position of the push plate 35 to be adjusted, thereby adjusting the pushing distance of the push plate 35 on the tenon and mortise building block toy.

[0081] Using the above technical solution, the pusher plate 35 can be driven to push the mortise and tenon building block toy while it is being transported by the conveyor line, so as to align the mortise and tenon building block toy to the position below the detector 14. At the same time, the mortise and tenon building block toy can be pushed over to perform multi-face detection, thereby improving detection efficiency.

[0082] Among them: such as Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 In the middle, the top end of the front plate 38 is rotatably connected to the top end of the push plate 35, the end of the front plate 38 is rotatably connected to the insertion rod 39, the end of the push plate 35 is rotatably installed with the connecting block 40, the top end of the insertion rod 39 is correspondingly connected through the interior of the connecting block 40, and the top end of the connecting block 40 is connected to the fixing bolt 41.

[0083] In specific application scenarios, the extension and retraction adjustment of the insertion rod 39 inside the connecting block 40 allows for adjustment of the angle of the front plate 38 outside the push plate 35 through the sliding adjustment of the insertion rod 39. The rotational structure between the connecting block 40 and the push plate 35, and between the insertion rod 39 and the front plate 38, enables stepless adjustment of the rotation angle of the front plate 38. Furthermore, the screwing in of the fixing bolt 41 limits the movement between the connecting block 40 and the insertion rod 39, ensuring that the insertion rod 39 does not extend or retract, thus guaranteeing the triangular stability between the front plate 38, the push plate 35, and the insertion rod 39. This facilitates pushing the mortise and tenon building block toy by tilting the front plate 38.

[0084] The above technical solution allows for the adjustment of the front plate angle by 38° to different pushing positions of various mortise and tenon building block toys, facilitating the alignment or knocking over of the toys and avoiding the jamming or inability to knock over the toys that occurs when using conventional inclined guide plates.

[0085] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention; the contents not described in detail in this specification belong to the prior art known to those skilled in the art; in addition, the directional terms such as up, down, left, right, front, and back in the text only represent their relative positions and not absolute positions.

[0086] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0087] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser detection method for mortise and tenon block toys, characterized by: The laser detection method comprises the following steps: Step 1: equipment installation, fix the laser measurement sensor on a stable support, automatically convey the building blocks on the conveying line, and scan the building blocks by using the laser measurement sensor; Step 2: data acquisition, acquire three-dimensional point cloud data of the building blocks on the conveying line by using the laser sensor, push down and align the building blocks by using the push plate, and obtain the size and surface morphology information of the building blocks; Step 3: size extraction, analyze the geometric size of the key parts such as tenon and mortise based on the point cloud data; Step 4: defect detection, compare the standard model by using the algorithm, identify the defects such as size out-of-tolerance, uneven surface, and assembly position offset; Step 5: judgment, automatically classify the good products and defective products according to the preset tolerance, and trigger the corresponding execution instruction; Step 6: defective product blowing, continue to convey the good products on the conveying belt, start the air pump to blow the defective products away from the conveying line through the blowing pipe when the defective products are detected; Step 7: recheck, manually or secondarily detect and recheck the blown defective products to ensure the sorting accuracy.

2. A laser detection device for implementing the laser detection method for the mortise and tenon toy blocks as claimed in claim 1, comprising a support frame (1) fixed outside the toy block conveying line and a detector (14) installed inside the top of the support frame (1), characterized in that: The inner bottom of the support frame (1) is provided with a mounting frame (5), the top inner side of the mounting frame (5) is symmetrically connected with a first support shaft (6) and a second support shaft (7), the outer side of the first support shaft (6) and the second support shaft (7) is fixed with a mute contact wheel (8) for lifting the conveying line, the bottom of the mounting frame (5) is provided with an air pump (19), the output end of the air pump (19) is connected with a copper pipe blowing head (21) opposite to the conveying line, the inner bottom of the mounting frame (5) is provided with a transmission mechanism, and the outer side of the mounting frame (5) is provided with a push plate (35) slidingly operated based on the transmission mechanism, and the inner side of the push plate (35) is connected with a front plate (38) for pushing the building blocks.

3. A laser detection device for mortise and tenon building block toys according to claim 2, characterized in that: The inner bottom of the support frame (1) is provided with a fixed rod (2), the top end of the fixed rod (2) is connected with a fixed frame (3), the bottom of the fixed frame (3) and the top of the fixed rod (2) are provided with fixed holes (4) at equal intervals, and the fixed rod (2) and the fixed frame (3) are fixedly connected by screws, and the bottom end of the mounting frame (5) is fixedly installed on the top end of the fixed frame (3).

4. The laser detection device for mortise and tenon toy blocks according to claim 2, characterized in that: The top end of the support frame (1) is fixedly provided with a driving motor (9), the output end of the driving motor (9) is connected with a lifting screw (10) vertically and rotatably installed on the inner side of the support frame (1), the middle part of the support frame (1) is fixedly provided with a fixed table (11) connected with the bottom end of the lifting screw (10), the outer side of the lifting screw (10) is connected with a connecting frame (13), the inner side of the connecting frame (13) is provided with a detector (14), the inner side of the connecting frame (13) is symmetrically provided with an adjusting hole (15), the side of the detector (14) is symmetrically provided with a fixed plate (16), and the fixed plate (16) is fixedly connected with the adjusting hole (15) by bolts.

5. A laser detection device for mortise and tenon building block toys according to claim 4, characterized in that: The side of the support frame (1) is symmetrically fixed with a slide rail (17), and the inner side of the connecting frame (13) is fixed with a slide table (18) which is in sliding connection with the slide rail (17).

6. A laser detection device for mortise and tenon building block toys according to claim 2, characterized in that: The air pump (19) is fixedly installed at the top end of the fixed frame (3), and the output end of the air pump (19) is fixedly connected with a connecting pipe (20), the top end of the connecting pipe (20) is communicated with a copper pipe blowing head (21) which can be bent and shaped, and the bottom of the copper pipe blowing head (21) is fixedly connected with the outer side of the mounting frame (5) through a connecting plate (22).

7. The laser detection device for mortise and tenon toy blocks according to claim 2, characterized in that: The transmission mechanism comprises: A drive wheel (23) is rotatably installed at the middle of the outer side of the mounting frame (5), the top end of the first support shaft (6), the second support shaft (7) and the drive wheel (23) is integrally fixedly connected with a belt wheel (24), and the outer side of the belt wheel (24) is drivingly connected through a transmission belt (25); A turntable (26) is rotatably installed at the inner bottom of the mounting frame (5), the bottom outer side of the turntable (26) is integrally and complexly fixed with a driven wheel (27), and the driven wheel (27) is in vertical driving connection with the drive wheel (23); A convex column (28) is protrudingly arranged at the top surface side of the turntable (26), the outer side of the convex column (28) is connected with a push plate (35) through a connecting frame, and the convex column (28) cyclically pushes and pulls the connecting frame by following the cyclic rotation of the turntable (26).

8. A laser detection device for mortise and tenon building block toys according to claim 7, characterized in that: The connecting frame comprises: A clamping frame (29) is clamped and sleeved on the outer side of the convex column (28), and the outer side of the clamping frame (29) is vertically fixed with a first horizontal rod (30) which is slidingly inserted into the inner side of the mounting frame (5); A vertical rod (32) is vertically distributed between the first horizontal rod (30), the outer side of the first horizontal rod (30) is slidingly connected with a first fixed clamp (31), and the vertical rod (32) is vertically slidingly connected to the inner side of the first fixed clamp (31); A second fixed clamp (34) is vertically distributed between the vertical rod (32) and the first horizontal rod (30), and the second fixed clamp (34) is arranged in parallel with the first horizontal rod (30), the top outer side of the vertical rod (32) is slidingly connected with a second horizontal rod (33), and the second fixed clamp (34) is vertically slidingly connected to the inner side of the second horizontal rod (33); The push plate (35) is vertically fixedly connected to the top end of the second fixed clamp (34).

9. A laser detection device for mortise and tenon building block toys according to claim 8, characterized in that: The side of the clamping frame (29) is symmetrically fixed with a fixed cylinder (36), and the inside of the fixed cylinder (36) is through-connected with a guide rod (37) which is fixed to the inner side of the mounting frame (5).

10. The laser detection device for mortise and tenon toy blocks according to claim 2, characterized in that: The top end of the front plate (38) is in corresponding rotary connection with the top end of the push plate (35), the end of the front plate (38) is rotatably connected with a plug rod (39), the end of the push plate (35) is rotatably installed with a connecting block (40) in the inside, the top end of the plug rod (39) is in corresponding through-connection in the inside of the connecting block (40), and the top end of the connecting block (40) is connected with a fixed bolt (41).

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