A good product screening and rejection mechanism

Abstract

This utility model discloses a good product screening and rejection mechanism, relating to the field of automated mechanical equipment, solving the problems of low efficiency, unstable yield, and high cost of manual screening in the production of toy light-up ball handles; it includes a frame, a slide rail installed on the worktable of the frame, several sliders slidably mounted on the slide rail, and a bottom shell fixture mounted on the sliders; a toy bottom shell is detachably installed inside the bottom shell fixture, and the bottom shell fixture has a pick-and-place notch formed on it; a machine platform is on the worktable, and a screw conveyor is installed at the upper end of the machine platform; the screw conveyor drives a lifting cylinder to move horizontally, and the lifting cylinder drives a lifting platform to move up and down; pneumatic fingers are installed on the bottom side of the lifting platform, and the pneumatic fingers are above the pick-and-place notch; the bottom shell fixture includes a fixed block, a movable block, and a first tension spring; the fixed block is provided with a locking mechanism and an unlocking mechanism; an alignment mechanism is installed on the worktable; this utility model can realize automated screening and discharge, improve efficiency and yield, reduce costs, and is suitable for multiple product models.

Description

Technical Field

[0001] This utility model relates to the field of automated mechanical equipment, and in particular to a good product screening and rejection mechanism. Background Technology

[0002] In the production process of toy light-up bubble ball handles, the positive and negative electrode plates inside the bottom shell must be installed sequentially, the button switch and the light-up balloon light wires must be welded, and finally the top cover is closed onto the bottom shell and locked with screws. For example, the "toy handle (LED light-up bubble ball)" disclosed in the prior art (announcement number: CN306150648S, announcement date: 2020.11.03) consists of components such as a bottom shell, top cover, button switch and light wires. After such products are assembled, they must undergo an electrical test to screen out good and bad products before proceeding with the subsequent unloading operation.

[0003] However, the industry still faces significant technical bottlenecks and production challenges in manufacturing these types of toy handles: 1. Low automation and low production efficiency: The current production model relies heavily on manual labor for screening and unloading. Individual workers must conduct electrical tests on each assembled product to determine its quality, and then manually sort the good and defective products. During this process, the speed of manual operation is limited by skill level and fatigue, averaging only 80-120 products per hour. This is far from matching the pace of the front-end assembly process, leading to "flow interruptions" in the overall production line and severely hindering the improvement of production efficiency.

[0004] 2. Poor screening accuracy and unstable product yield: During manual testing, subjective factors such as the stability of finger contact with the electrodes and the degree of concentration can affect the judgment results, easily leading to situations where "good products are misjudged as defective products" or "defective products are missed and flow into subsequent stages." In actual production, the product yield of manual screening is usually only maintained at 85%-90%, which not only causes waste of good products but may also lead to customer complaints due to defective products flowing out, damaging the company's brand image.

[0005] 3. Lack of equipment compatibility and high modification costs: Although some automated screening equipment exists on the market, most are designed for products with regular shapes such as electronic components and standard mechanical parts. Their fixtures and sorting mechanisms cannot adapt to the irregular contours of toy handle bottom shells. If a company needs to modify its existing equipment to meet production needs, it needs to customize fixtures and adjust test circuits and transmission structures. The modification cost for a single piece of equipment can be as high as 30,000 to 50,000 yuan. Moreover, the modified equipment can only be adapted to a single model of product and cannot meet the production needs of multiple categories, which is difficult for small and medium-sized enterprises to afford.

[0006] 4. High labor costs: A production line producing 100,000 toy handles annually requires 3-4 workers just for the material sorting and unloading stage. Based on current labor costs, annual labor expenses exceed 150,000 yuan, significantly increasing the company's production costs. Furthermore, manual testing and assembly are inefficient and do not meet the efficiency requirements of modern industrial production.

[0007] In summary, the current production of toy light-up ball handles lacks highly adaptable and automated equipment for screening and rejecting defective products, resulting in low production efficiency, unstable yield, high cost, and slow efficiency. There is an urgent need for a technical solution that can solve these problems. Utility Model Content

[0008] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0009] A good product screening and rejection mechanism includes a frame, a worktable fixedly installed on the frame, a slide rail fixedly installed on the worktable, a plurality of sliders slidably installed on the slide rail, and a bottom housing fixture fixedly installed on each slider. The bottom shell fixture is detachably installed with a toy bottom shell. The bottom shell fixture has a pick-and-place notch. A machine platform is fixedly installed on the worktable. A screw conveyor is fixedly installed on the upper end of the machine platform. A side plate is connected to the side of the screw conveyor. A lifting cylinder is fixedly installed on the upper end of the side plate. A lifting platform is connected to the bottom end of the lifting cylinder. A pneumatic finger is fixedly installed on the bottom side of the lifting platform. The pneumatic finger is positioned above the pick-and-place notch.

[0010] Furthermore: a vertical guide rail is fixedly installed on the outer side of the side plate, and a sliding block is fixedly installed on the lifting platform. The sliding block is installed on the vertical guide rail in a sliding and lifting manner.

[0011] Furthermore: the bottom shell fixture includes a fixed block and a movable block. The fixed block is fixedly installed on the slider, and the movable block is slidably fitted close to or away from the fixed block. A first tension spring is fixedly connected between the fixed block and the movable block. Cavities are formed on the upper side of both the fixed block and the movable block. The toy bottom shell is fitted with a clearance fit in the cavities of the fixed block and the movable block. The pick-and-place notch is integrally formed on the upper side of the fixed block and the movable block.

[0012] Furthermore: two transverse guide rails are fixedly installed on the slider, and a slide table is slidably installed on the transverse guide rails, with the movable block fixedly installed on the two slide tables.

[0013] Furthermore: a clamping mechanism is installed inside the fixing block. The clamping mechanism includes a positioning buckle and a return spring. A positioning slot is formed on the upper side of the fixing block. The positioning buckle is rotatably installed in the positioning slot. The return spring is abutted between the lower end of the positioning buckle and the fixing block. The return spring drives the positioning buckle to lock the toy's bottom shell in the cavity.

[0014] Furthermore, the fixed block is provided with an unlocking mechanism, which drives the movable block away from the fixed block, and at the same time, the unlocking mechanism drives the positioning buckle to open.

[0015] Furthermore: the unlocking mechanism includes an opening clamping link, an opening clamping block, an opening clamping guide rail, a second tension spring, and an unlocking cylinder. The right side of the fixed block is formed with a recessed groove. The opening clamping link has an "L"-shaped structure and is rotatably fitted in the recessed groove. The second tension spring is fixedly connected between the outer end of the opening clamping link and the rear end of the fixed block. The opening clamping guide rail is fixedly installed on the right side of the fixed block. The opening clamping block is slidably fitted on the opening clamping guide rail. The front side of the opening clamping block abuts against the outer end of the opening clamping link. The corner position of the opening clamping link abuts against the movable block. A positioning post is fixedly installed on the rear side of the opening clamping block. The unlocking cylinder is fixedly installed on the worktable. The telescopic rod of the unlocking cylinder pushes against the positioning post and drives the opening clamping block to move forward.

[0016] Furthermore: an alignment mechanism is fixedly installed on the worktable, and the bottom housing fixture on the slider is aligned with the pneumatic finger through the alignment mechanism.

[0017] Furthermore: the alignment mechanism includes a positioning bracket, a displacement cylinder, a rotating shaft, a cylinder connecting rod, and an alignment connecting rod. The positioning bracket is fixedly installed on the worktable, the displacement cylinder is rotatably mounted on the positioning bracket, and the rotating shaft is rotatably mounted above the worktable. The rotating shaft and the slide rail are arranged parallel to each other. The cylinder connecting rod and the alignment connecting rod are both fixedly mounted on the rotating shaft. The end of the displacement cylinder is rotatably mounted on the cylinder connecting rod, and the displacement cylinder drives the rotating shaft to rotate through the cylinder connecting rod. An alignment block is fixedly installed on the outer end of the alignment connecting rod, and an alignment notch is formed on the side of the slider. When the rotating shaft rotates, it drives the alignment block to be inserted into the alignment notch with a gap fit.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. Achieve fully automated operation and significantly improve production efficiency: This mechanism uses slide rails and sliders to drive the bottom shell fixture to complete the continuous conveying of the toy bottom shell. Combined with the screw conveyor and lifting cylinder to control the movement and lifting of pneumatic fingers, and with the automatic unlocking action of the unlocking mechanism, it can realize the fully automated operation from product conveying, testing and screening to picking up good products, without manual intervention. The equipment can process 300-350 products per hour, which is 2-3 times more efficient than traditional manual operation. It can also operate continuously for 24 hours, effectively solving the "interruption" problem of the production line and matching the rhythm of the front-end assembly process.

[0019] 2. Improve screening accuracy: The alignment mechanism drives the rotating shaft to rotate through the displacement cylinder, which drives the alignment block to accurately insert into the alignment notch of the slider, ensuring that the positioning error between the bottom housing fixture and the pneumatic finger is controlled within ±0.1mm, thus avoiding grasping errors.

[0020] 3. Strong compatibility, adaptable to the production of multiple product models: The bottom shell fixture adopts a combination structure of fixed blocks and movable blocks. The distance between the two is adjusted by the tension of the first tension spring. Combined with the fine-tunable design of the cavity, it can adapt to the bottom shells of toys of different sizes and contours. The action logic of the unlocking mechanism and the locking mechanism is not limited by the product shape. Only the cavity size and the position of the positioning buckle need to be finely adjusted according to the specific product parameters to meet the screening needs of various toy handles. There is no need to customize special equipment for a single product. Only the appropriate bottom shell fixture needs to be replaced, which reduces the company's equipment investment costs and improves equipment utilization.

[0021] 4. Reduce costs and enhance enterprise competitiveness: Only one worker is needed for inspection and maintenance during equipment operation, which reduces the number of workers by 2-3 compared to the traditional manual screening of good products, meeting the efficiency requirements of modern industrial production.

[0022] 5. The mechanism has a simple structure and a low failure rate of core components. Routine maintenance only requires basic operations such as cleaning the guide rails and checking the elasticity of the tension springs, which further reduces the company's production and operation costs and enhances the product's market competitiveness.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 An enlarged structural diagram; Figure 3 This is a schematic diagram of the structure of this utility model when it is installed on the workbench; Figure 4 This is a schematic diagram of the installation structure of a single machine. Figure 5 This is a schematic diagram of the bottom shell fixture; Figure 6 This is a schematic diagram of the installation structure of the alignment mechanism.

[0026] The diagram shows: 1. Frame; 2. Worktable; 3. Slide rail; 4. Slider; 5. Bottom shell fixture; 51. Fixed block; 52. Movable block; 6. Toy bottom shell; 7. Pick-up / placement notch; 8. Machine base; 9. Screw conveyor; 10. Side plate; 11. Lifting cylinder; 12. Lifting platform; 13. Pneumatic finger; 14. Vertical guide rail; 15. Sliding block; 16. First tension spring; 17. Cavity; 18. Horizontal guide rail; 19. Slide table; 20. Clamping mechanism; 201 202. Positioning buckle; 203. Reset spring; 204. Positioning slot; 205. Unlocking mechanism; 226. Clamping linkage; 227. Clamping block; 228. Clamping guide rail; 229. Second tension spring; 220. Unlocking cylinder; 200. Recessed groove; 201. Positioning post; 220. Alignment mechanism; 251. Positioning bracket; 252. Displacement cylinder; 253. Rotating shaft; 254. Cylinder connecting rod; 255. Alignment connecting rod; 26. Alignment block; 27. Alignment notch. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] like Figure 1-6 As shown, a good product screening and rejection mechanism of this utility model includes a frame 1, a workbench 2 is fixedly installed on the frame 1, a slide rail 3 is fixedly installed on the workbench 2, a plurality of sliders 4 are slidably installed on the slide rail 3, and a bottom shell fixture 5 is fixedly installed on each slider 4. The toy bottom shell 6 is detachably installed inside the bottom shell fixture 5. The bottom shell fixture 5 has a pick-and-place notch 7 formed on it. A machine platform 8 is fixedly installed on the workbench 2. A screw conveyor 9 is fixedly installed on the upper end of the machine platform 8. A side plate 10 is connected to the side of the screw conveyor 9. A lifting cylinder 11 is fixedly installed on the upper end of the side plate 10. A lifting platform 12 is connected to the bottom end of the lifting cylinder 11. A pneumatic finger 13 is fixedly installed on the bottom side of the lifting platform 12. The pneumatic finger 13 is positioned above the pick-and-place notch 7.

[0033] Furthermore: A vertical guide rail 14 is fixedly installed on the outer side of the side plate 10, and a sliding block 15 is fixedly installed on the lifting platform 12. The sliding block 15 is slidably mounted on the vertical guide rail 14. Through the cooperation of the vertical guide rail 14 and the sliding block 15, the lifting movement of the lifting platform 12 can be guided and limited to avoid the lifting platform 12 from deviating during the movement, ensuring that the pneumatic finger 13 can accurately align with the pick-and-place notch 7 and improve the gripping stability.

[0034] Furthermore: the bottom shell fixture 5 includes a fixed block 51 and a movable block 52. The fixed block 51 is fixedly mounted on the slider 4, and the movable block 52 is slidably positioned close to or away from the fixed block 51. A first tension spring 16 is fixedly connected between the fixed block 51 and the movable block 52. Cavities 17 are formed on the upper sides of both the fixed block 51 and the movable block 52. The toy bottom shell 6 is fitted with the cavity 17 of the fixed block 51 and the movable block 52 with a clearance fit. The pick-and-place notch 7 is integrally formed on the upper side of the fixed block 51 and the movable block 52. The first tension spring 16 can provide continuous tension, so that the fixed block 51 and the movable block 52 fit tightly together, ensuring that the toy bottom shell 6 is stably fixed in the cavity 17. At the same time, the sliding design of the movable block 52 makes it easy to separate from the fixed block 51 when unlocking, which facilitates the pick-and-place of the toy bottom shell 6.

[0035] Furthermore: Two transverse guide rails 18 are fixedly installed on the slider 4, and slide tables 19 are slidably installed on the transverse guide rails 18. The movable block 52 is fixedly installed on the two slide tables 19. The cooperation between the transverse guide rails 18 and the slide tables 19 provides precise guidance for the sliding of the movable block 52, avoids jamming or deviation of the movable block 52 during movement, and ensures smooth and stable opening and closing of the bottom housing fixture 5.

[0036] Furthermore, a clamping mechanism 20 is installed inside the fixing block 51. The clamping mechanism 20 includes a positioning buckle 201 and a return spring 202. A positioning slot 21 is formed on the upper side of the fixing block 51. The positioning buckle 201 is rotatably installed in the positioning slot 21. The return spring 202 is abutted between the lower end of the positioning buckle 201 and the fixing block 51. The return spring 202 drives the positioning buckle 201 to lock the toy bottom shell 6 in the cavity 17. After the toy bottom shell 6 is inserted into the cavity 17, the return spring 202 pushes the positioning buckle 201 to rotate, so that the positioning buckle 201 clamps the toy bottom shell 6, effectively preventing the toy bottom shell 6 from loosening or falling off during the movement of the slider 4, and ensuring the stability of the conveying.

[0037] Furthermore, the fixed block 51 is provided with an unlocking mechanism 22. The unlocking mechanism 22 drives the movable block 52 away from the fixed block 51, and at the same time, the unlocking mechanism 22 drives the positioning buckle 201 to open. The unlocking mechanism 22 can realize the synchronous action of opening and closing of the bottom shell fixture 5 and unlocking of the positioning buckle 201 without additional operation steps, thereby improving the automation level and operation efficiency of the equipment.

[0038] Furthermore: the unlocking mechanism 22 includes an opening clamping link 221, an opening clamping block 222, an opening clamping guide rail 223, a second tension spring 224, and an unlocking cylinder 225. A recessed groove 23 is formed on the right side of the fixed block 51. The opening clamping link 221 has an "L"-shaped structure and is rotatably fitted within the recessed groove 23. The second tension spring 224 is fixedly connected between the outer end of the opening clamping link 221 and the rear end of the fixed block 51. The opening clamping guide rail 223 is fixedly installed on the right side of the fixed block 51. The opening clamping block 222 is slidably fitted onto the opening clamping guide rail 223. The front side of the opening clamping block 222 abuts against the outer end of the opening clamping link 221, and the corner position of the opening clamping link 221 abuts against the movable block 52. A positioning post 24 is fixedly installed on the rear side of the opening clamping block 222. The unlocking cylinder 225 is fixedly installed on the workbench 2. The telescopic rod of the unlocking cylinder 225 presses against the positioning post 24, causing the clamping block 222 to move forward. When unlocking, the unlocking cylinder 225 pushes the clamping block 222 forward along the clamping guide rail 223. The clamping block 222 squeezes the outer end of the clamping connecting rod 221, causing the clamping connecting rod 221 to rotate around the rotation point in the recessed groove 23. Its rotation position pushes the movable block 52 away from the fixed block 51. At the same time, the inner end of the clamping connecting rod 221 moves away from the bottom end of the positioning buckle 201. The reset spring 202 drives the positioning buckle 201 to open. After unlocking, the second tension spring 224 pulls the clamping connecting rod 221 to reset, so that the movable block 52 fits with the fixed block 51 and the positioning buckle 201 is re-clamped. The structure is compact and the action is highly synchronized.

[0039] Furthermore: The alignment mechanism 25 is fixedly installed on the workbench 2, and the bottom shell fixture 5 on the slider 4 is aligned with the pneumatic finger 13 through the alignment mechanism 25; the alignment mechanism 25 can ensure that when the slider 4 moves to the designated work position, the bottom shell fixture 5 and the pneumatic finger 13 are accurately aligned, avoiding the failure of the pneumatic finger 13 to grasp due to positioning deviation, and improving the operating accuracy of the equipment.

[0040] Furthermore, the alignment mechanism 25 includes a positioning bracket 251, a displacement cylinder 252, a rotating shaft 253, a cylinder connecting rod 254, and an alignment connecting rod 255. The positioning bracket 251 is fixedly mounted on the worktable 2. The displacement cylinder 252 is rotatably mounted on the positioning bracket 251. The rotating shaft 253 is rotatably mounted above the worktable 2. The rotating shaft 253 and the slide rail 3 are arranged parallel to each other. The cylinder connecting rod 254 and the alignment connecting rod 255 are both fixedly mounted on the rotating shaft 253. The end of the displacement cylinder 252 is rotatably mounted on the cylinder connecting rod 254, and the displacement cylinder 252 drives the rotating shaft 253 to rotate through the cylinder connecting rod 254. The alignment block 26 is fixedly installed on the outer end of the alignment connecting rod 255. The side of the slider 4 is formed with an alignment notch 27. When the rotating shaft 253 rotates, it drives the alignment block 26 to be inserted into the alignment notch 27 with a clearance fit. During alignment, the displacement cylinder 252 pushes the cylinder connecting rod 254 to swing, which drives the rotating shaft 253 to rotate, thereby causing the alignment block 26 on the alignment connecting rod 255 to be inserted into the alignment notch 27 of the slider 4, so as to achieve precise positioning of the slider 4. After positioning is completed, the displacement cylinder 252 retracts, which drives the alignment block 26 to disengage from the alignment notch 27, and the slider 4 can continue to move along the slide rail 3. The operation is convenient and the positioning accuracy is high. The positioning error can be controlled within ±0.1mm.

[0041] The workflow of this embodiment is as follows: 1. Loading stage: Manual or front-end automated equipment puts the toy bottom shell 6 into the cavity 17 of the bottom shell fixture 5. The reset spring 202 pushes the positioning buckle 201 to rotate, clamping the toy bottom shell 6 in the cavity 17. The first tension spring 16 pulls the movable block 52 to fit with the fixed block 51, ensuring that the toy bottom shell 6 is stably fixed.

[0042] 2. Conveying and Alignment Stage: The slider 4 moves along the slide rail 3 to convey the bottom housing fixture 5 to each station for assembly and welding operations. After assembly, welding and power-on testing are completed, it can be conveyed to the screening station. During the alignment operation, the displacement cylinder 252 pushes the cylinder connecting rod 254 to swing, which in turn drives the rotating shaft 253 to rotate, so that the alignment block 26 on the alignment connecting rod 255 is inserted into the alignment notch 27 of the slider 4, realizing precise positioning at each station and ensuring accurate alignment between the bottom housing fixture 5 and the pneumatic finger 13.

[0043] 3. Unlocking Stage: During the power-on test, a good product inspection can be achieved. If it is determined to be a good product, the top cover is continuously conveyed and assembled onto the toy's bottom shell 6, and then conveyed and transported to the pneumatic gripper station. Through the action of the unlocking cylinder 225, its telescopic rod presses against the positioning post 24, driving the opening block 222 to move forward along the opening guide rail 223. The opening block 222 squeezes the outer end of the opening connecting rod 221, causing the opening connecting rod 221 to rotate around the rotation point in the recessed groove 23. Its corner position pushes the movable block 52 away from the fixed block 51 along the slide table 19 and the transverse guide rail 18. At the same time, the inner end of the opening connecting rod 221 moves away from the bottom end of the positioning buckle 201. The reset spring 202 drives the positioning buckle 201 to open, completing the unlocking of the bottom shell fixture 5.

[0044] 4. Grabbing and unloading stage of good and defective products: The screw conveyor 9 drives the side plate 10 to move, so that the pneumatic finger 13 is aligned with the pick-up and put-away notch 7; the lifting cylinder 11 is activated, which drives the lifting platform 12 to descend along the vertical guide rail 14 and the sliding block 15, and the pneumatic finger 13 extends into the pick-up and put-away notch 7 to grab the bottom shell 6 of the good toy; then the lifting cylinder 11 drives the lifting platform 12 to rise, the screw conveyor 9 drives the side plate 10 to move to the unloading area of ​​good and defective products, the pneumatic finger 13 is released, and the product is unloaded. Two machines 8 are required to be equipped for the output of good products and the output of defective products respectively.

[0045] 5. Reset Stage: The telescopic rod of the unlocking cylinder 225 retracts, the second tension spring 224 pulls the clamping connecting rod 221 to reset, the clamping block 222 moves back along the clamping guide rail 223, the movable block 52 fits with the fixed block 51 under the action of the first tension spring 16, and the positioning buckle 201 resets again; the displacement cylinder 252 retracts, driving the alignment block 26 to disengage from the alignment notch 27, and the slider 4 moves along the slide rail 3 to the next station, entering the next round of operation cycle.

[0046] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A good product screening and rejection mechanism, comprising a frame, a worktable fixedly mounted on the frame, a slide rail fixedly mounted on the worktable, a plurality of sliders slidably mounted on the slide rail, and a bottom housing fixture fixedly mounted on each slider; characterized in that: The bottom shell fixture is detachably installed with a toy bottom shell. The bottom shell fixture has a pick-and-place notch. A machine platform is fixedly installed on the worktable. A screw conveyor is fixedly installed on the upper end of the machine platform. A side plate is connected to the side of the screw conveyor. A lifting cylinder is fixedly installed on the upper end of the side plate. A lifting platform is connected to the bottom end of the lifting cylinder. A pneumatic finger is fixedly installed on the bottom side of the lifting platform. The pneumatic finger is positioned above the pick-and-place notch.

2. The good product screening and removing mechanism according to claim 1, characterized in that: A vertical guide rail is fixedly installed on the outer side of the side plate, and a sliding block is fixedly installed on the lifting platform. The sliding block is installed on the vertical guide rail in a sliding and lifting manner.

3. The good product screening and removing mechanism according to claim 1, characterized in that: The bottom shell fixture includes a fixed block and a movable block. The fixed block is fixedly mounted on the slider, and the movable block is slidably positioned close to or away from the fixed block. A first tension spring is fixedly connected between the fixed block and the movable block. Cavities are formed on the upper sides of both the fixed block and the movable block. The toy bottom shell is fitted into the cavities of the fixed block and the movable block with a clearance fit. The pick-and-place notch is integrally formed on the upper side of the fixed block and the movable block.

4. The good product screening and removing mechanism according to claim 3, characterized in that: Two transverse guide rails are fixedly installed on the slider, and a slide table is slidably installed on the transverse guide rails. The movable block is fixedly installed on the two slide tables.

5. The good product screening and rejecting mechanism according to claim 3, characterized in that: The fixing block is equipped with a clamping mechanism, which includes a positioning buckle and a return spring. The upper side of the fixing block is formed with a positioning slot. The positioning buckle is rotatably installed in the positioning slot. The return spring is installed between the lower end of the positioning buckle and the fixing block. The return spring drives the positioning buckle to lock the toy's bottom shell in the cavity.

6. A good product screening and removing mechanism according to claim 5, characterized in that: The fixed block is equipped with an unlocking mechanism. The unlocking mechanism moves the movable block away from the fixed block, and at the same time, the unlocking mechanism causes the positioning buckle to open.

7. A good product screening and rejection mechanism according to claim 6, wherein: The unlocking mechanism includes an opening clamping link, an opening clamping block, an opening clamping guide rail, a second tension spring, and an unlocking cylinder. The right side of the fixed block has a recessed groove. The opening clamping link has an "L"-shaped structure and is rotatably fitted in the recessed groove. The second tension spring is fixedly connected between the outer end of the opening clamping link and the rear end of the fixed block. The opening clamping guide rail is fixedly installed on the right side of the fixed block. The opening clamping block is slidably fitted on the opening clamping guide rail. The front side of the opening clamping block abuts against the outer end of the opening clamping link, and the corner position of the opening clamping link abuts against the movable block. A positioning post is fixedly installed on the rear side of the opening clamping block. The unlocking cylinder is fixedly installed on the worktable. The telescopic rod of the unlocking cylinder pushes against the positioning post, causing the opening clamping block to move forward.

8. The good product screening and rejecting mechanism according to claim 1, wherein: The alignment mechanism is fixedly installed on the workbench, and the bottom shell fixture on the slider is aligned with the pneumatic finger through the alignment mechanism.

9. The good product screening and rejection mechanism according to claim 8, characterized in that: The alignment mechanism includes a positioning bracket, a displacement cylinder, a rotating shaft, a cylinder connecting rod, and an alignment connecting rod. The positioning bracket is fixedly installed on the worktable. The displacement cylinder is rotatably mounted on the positioning bracket. The rotating shaft is rotatably mounted above the worktable. The rotating shaft and the slide rail are arranged parallel to each other. The cylinder connecting rod and the alignment connecting rod are both fixedly mounted on the rotating shaft. The end of the displacement cylinder is rotatably mounted on the cylinder connecting rod. The displacement cylinder drives the rotating shaft to rotate through the cylinder connecting rod. An alignment block is fixedly installed on the outer end of the alignment connecting rod. An alignment notch is formed on the side of the slider. When the rotating shaft rotates, it drives the alignment block to be inserted into the alignment notch with a clearance fit.

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