Cover turning device for full-automatic aluminum plastic cover automatic detector

Abstract

The invention discloses a cover turning device for a full-automatic aluminum plastic cover automatic detector, and relates to the technical field of cover turning devices, the cover turning device comprises a frame body, the frame body is provided with a first conveying mechanism, a second conveying mechanism, a third conveying mechanism and a fourth conveying mechanism; the first conveying mechanism comprises a first conveying belt, the first conveying belt is arranged on the frame body, and the outer ring of the first conveying belt is provided with a concave part used for placing an aluminum plastic cover; the second conveying mechanism comprises a limiting belt, the limiting belt is arranged on the frame body, the limiting belt is distributed in a V shape, and a clamping and overturning area is formed by the limiting belt and one end of the first conveying belt. According to the cover turning device for the full-automatic aluminum-plastic cover automatic detection machine, by arranging the structures such as the concave part, the clamping turning area and the butt joint plate, the cover turning device is suitable for aluminum-plastic covers of various sizes, extrusion limiting is conducted on the aluminum-plastic covers, stable turning is guaranteed, unqualified aluminum-plastic covers can be directly discharged, and the use efficiency of the cover turning device for the full-automatic aluminum-plastic cover automatic detection machine is improved.

Description

Technical Field

[0001] This invention relates to the field of flip-top device technology, and in particular to a flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine. Background Technology

[0002] Aluminum-plastic caps are a common packaging material widely used in the food, pharmaceutical, and cosmetic industries.

[0003] For example, the patent entitled "A Flip-top Device for an Automatic Aluminum-Plastic Cap Detection Machine" (patent application number: CN202220716851.6) discloses a flip-top device for an automatic aluminum-plastic cap detection machine. By using two sets of conveyor belts, it can clamp and flip the combined caps. Since the conveyor belts are planar and actively transport the combined caps, there will be no blockage. However, in actual use, this device is only suitable for aluminum-plastic caps of a single size. If the size is small, it is easy to slide freely due to insufficient clamping force. If the size is large, it is easy to deform due to excessive compression. The efficiency of use needs to be improved.

[0004] Therefore, it is necessary to propose a flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine, so as to solve the problem that the device is only applicable to aluminum-plastic caps of a single size in actual use. If the size is small, it is easy to slide freely due to insufficient clamping force, and if the size is large, it is easy to deform due to excessive compression, and the efficiency of use needs to be improved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine, comprising a frame, wherein a first conveying mechanism, a second conveying mechanism, a third conveying mechanism and a fourth conveying mechanism are provided on the frame; The first conveying mechanism includes a first conveyor belt, which is mounted on a frame and has a recessed portion on its outer ring for placing an aluminum-plastic cap. The second conveying mechanism includes a limiting belt, which is installed on the frame and is distributed in a V shape, forming a clamping and flipping area with one end of the first conveyor belt; The third conveying mechanism includes a second conveyor belt, which is mounted on the frame and located below the first conveyor belt. The fourth conveying mechanism includes a docking plate for disconnecting or docking the limiting belt with the second conveyor belt; The frame is rotatably provided with a second cylinder for the first conveyor belt to wind around near the limiting belt, and the second cylinder has a thin segment, at which a pressure cup is provided for pressing the aluminum-plastic cap through the recess, and the pressure cup is linked with the docking plate.

[0007] Preferably, an electric push rod is fixedly installed on the thin segment, and a sliding rod is fixedly connected to the telescopic end of the electric push rod. A sliding channel for the sliding rod to slide is opened on the second cylinder, and the pressure cup is fixedly connected to the sliding rod.

[0008] Preferably, the inner walls on both sides of the frame are provided with sliding grooves, and sliding plates are slidably arranged inside the sliding grooves. A connecting plate is fixedly connected between the two sliding plates, and a spring is provided inside the sliding grooves.

[0009] Preferably, the second cylinder has a first sliding box and a second sliding box on its side. Both the first and second sliding boxes are arc-shaped, and the side of the first and second sliding boxes that are close to each other is a concave side. The first sliding box is fixedly connected to the moving rod, and a limiting block is fixedly connected to the second sliding box. A limiting groove for the limiting block to slide is opened on the outer wall of the second cylinder. Two sliding strips are provided between the first and second sliding boxes. The first sliding box, the second sliding box and the two sliding strips form a pressure ring. An elastic telescopic rod is fixedly connected to the top of one of the sliding plates, and the top of the elastic telescopic rod abuts against the pressure ring.

[0010] Preferably, both ends of the sides of the first slide box and the second slide box are provided with arc tracks, and a round rod is slidably arranged inside the arc track, and the round rod is fixedly connected to the corresponding slide bar.

[0011] Preferably, a first rack is fixedly connected to the first slide box, a second rack is fixedly connected to the second slide box, a round shaft is rotatably connected to the second cylinder, the round shaft and the second cylinder are concentrically arranged, a gear is rotatably connected to the round shaft, the first rack and the second rack are respectively distributed on both sides of the gear, and both the first rack and the second rack are meshed with the gear.

[0012] Preferably, the docking plate is inclined, with the end closest to the second conveyor belt tilted downwards.

[0013] Preferably, a first cylinder is rotatably mounted on the frame, and two fifth cylinders are rotatably mounted on the frame. The first cylinder, the second cylinder, and the two fifth cylinders are connected by a first conveyor belt.

[0014] Preferably, a third cylinder is rotatably mounted on the frame, and there are three third cylinders, which are connected by a limiting belt drive. Two fourth cylinders are rotatably mounted on the frame, and the two fourth cylinders are connected by a second conveyor belt drive.

[0015] Preferably, a motor is installed on the frame.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention, by setting up a recessed part, a clamping and flipping area, a docking plate and other structures, is applicable to aluminum-plastic caps of various sizes, and squeezes and limits the aluminum-plastic caps to ensure stable flipping. It can also directly unload unqualified aluminum-plastic caps, thereby improving the efficiency of the flipping device for the fully automatic aluminum-plastic cap automatic inspection machine. 2. The pressure cup and the docking plate work together to effectively coordinate based on the qualified status of the aluminum-plastic cap, thereby improving the effective utilization rate of resources; 3. By setting up structures such as shift rods and using the movement of the pressure cup as power, the radius of the pressure ring can be adjusted efficiently; 4. By setting up structures such as the first rack and the second rack, the radius of the pressure ring is ensured to be adjusted stably; 5. Because the elastic telescopic rod can adapt to shrinkage, and the elastic support force of the elastic telescopic rod is greater than the elastic support force of the spring, the pressure ring can be stably matched with the elastic telescopic rod after the radius of the pressure ring changes adaptively due to the size of the aluminum-plastic cover, thereby allowing the limiting belt to dock with the second conveyor belt. 6. By setting a docking plate, the limit belt and the second conveyor belt can be disconnected or docked, which makes it easier for unqualified aluminum-plastic caps to be directly unloaded after single-sided inspection, thus improving inspection efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the flip-top device for the fully automatic aluminum-plastic cap automatic inspection machine of the present invention from one perspective.

[0018] Figure 2 This is a schematic diagram of the flip-top device for the fully automatic aluminum-plastic cap automatic inspection machine of the present invention from another perspective.

[0019] Figure 3 This is a schematic diagram of the first conveyor belt and limiting belt structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the second cylinder and sliding channel structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the second cylinder and circular shaft structure of the present invention.

[0022] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0023] Figure 7 This is a schematic diagram of the first and second racks of the present invention.

[0024] Figure 8 This is a schematic diagram of the first and second sliding boxes of the present invention.

[0025] Figure 9 This is a schematic diagram of the moving rod and pressure cup structure of the present invention.

[0026] In the diagram: 1. Frame; 2. First conveyor belt; 201. Recess; 3. Limiting belt; 4. Second conveyor belt; 5. Connecting plate; 6. First cylinder; 7. Second cylinder; 701. Slender segment; 8. Electric push rod; 9. Moving rod; 10. Sliding channel; 11. Pressure cup; 12. Slide groove; 13. Slide plate; 14. Elastic telescopic rod; 15. Spring; 16. First slide box; 17. Second slide box; 18. Slide bar; 19. Arc track; 20. Round rod; 21. Round shaft; 22. Gear; 23. First rack; 24. Second rack; 25. Limiting groove; 26. Limiting block; 27. Third cylinder; 28. Fourth cylinder; 29. ​​Fifth cylinder; 30. Motor. Detailed Implementation

[0027] This invention provides, for example Figures 1-9 The flip-top device for an automatic aluminum-plastic cap testing machine shown includes a frame 1, on which a first conveying mechanism, a second conveying mechanism, a third conveying mechanism and a fourth conveying mechanism are provided.

[0028] The first conveying mechanism includes a first conveyor belt 2, which is mounted on a frame 1. A first cylinder 6 and a second cylinder 7 are rotatably mounted on the frame 1, located at opposite ends of the frame 1. Two fifth cylinders 29 are also rotatably mounted on the frame 1, located between the first cylinder 6 and the second cylinder 7. The first cylinder 6, the second cylinder 7, and the two fifth cylinders 29 are connected by the first conveyor belt 2. A motor 30 is mounted on the frame 1, and the first cylinder 6 is fixedly connected to the drive shaft of the motor 30, which drives the first conveyor belt 2 to rotate.

[0029] The inner ring of the first conveyor belt 2 is attached to the first cylinder 6 and the second cylinder 7, and the outer ring of the first conveyor belt 2 is attached to the fifth cylinder 29 (see reference). Figure 2 This causes the bottom of the first conveyor belt 2 to retract upwards, making it easier to photograph the aluminum-plastic cover using a high-definition camera or similar device.

[0030] To facilitate the transport of aluminum-plastic caps, a recess 201 for placing aluminum-plastic caps is provided on the outer ring of the first conveyor belt 2, and the recess 201 is located in the middle of the first conveyor belt 2. The width of the recess 201 is greater than the outer diameter of the aluminum-plastic cap, so as not to affect the shooting using a high-definition camera.

[0031] The first conveyor belt 2 can be made of, but is not limited to, rubber. Because the recessed portion 201 is thinner, it has a certain degree of deformation capability, while the portions on both sides of the recessed portion 201 are thicker, preventing the aluminum-plastic cover from slipping off or deforming, thus ensuring the stability of the first conveyor belt 2's rotation. If necessary, tensioning devices (including tensioning wheels) can be installed on the frame 1 to keep the first conveyor belt 2 always taut, ensuring stable conveying.

[0032] The second conveying mechanism includes a limiting belt 3, which is mounted on the frame 1 and located near the second cylinder 7. The limiting belt 3 is distributed in a V-shape and adheres to the first conveyor belt 2, forming a clamping and flipping area with one end of the first conveyor belt 2 for flipping the aluminum-plastic cover. A third cylinder 27 is rotatably mounted on the frame 1, and there are three third cylinders 27. The three third cylinders 27 are connected by the limiting belt 3. Another motor 30 can be mounted on the frame 1, and one of the third cylinders 27 is fixed on the drive shaft of the motor 30, thereby realizing the rotation of the limiting belt 3.

[0033] When using, refer to Figure 2 As shown, the first conveyor belt 2 rotates counterclockwise, and the limiting belt 3 rotates clockwise. For example, the aluminum-plastic cover is placed on top of the first conveyor belt 2 with its opening facing upward and is located in the recess 201. When the aluminum-plastic cover enters the clamping and flipping area, it can be flipped over. When it is output from the clamping and flipping area, the opening of the aluminum-plastic cover faces downward.

[0034] The third conveying mechanism includes a second conveyor belt 4, which is mounted on a frame 1 and located below the first conveyor belt 2. Two fourth cylinders 28 are rotatably mounted on the frame 1, connected via the second conveyor belt 4. Another motor 30 can be mounted on the frame 1, with one of the fourth cylinders 28 fixed to the drive shaft of the motor 30, thereby enabling the second conveyor belt 4 to rotate. (Refer to...) Figure 2 As shown, the second conveyor belt 4 rotates clockwise and transports the flipped aluminum-plastic cover.

[0035] In actual use, transmission components, including pulleys and belts, can be set between the first, second, and third transmission mechanisms to achieve a linkage effect, which can be adjusted according to the specific usage.

[0036] In addition, high-definition cameras (not shown in the figure) are installed at both the top and bottom of the frame 1. The high-definition camera at the top of the frame 1 takes pictures and detects the aluminum-plastic cover placed on the top of the first conveyor belt 2, while the high-definition camera at the bottom of the frame takes pictures and detects the aluminum-plastic cover after it has been flipped over and is located on the second conveyor belt 4. Multiple high-definition cameras can also be installed to ensure detection efficiency.

[0037] Considering that some aluminum-plastic caps have been detected as unqualified during the first conveyor belt 2, such as deformation, there is no need to inspect the other side. They can be directly unloaded after passing through the clamping and flipping area. In order to realize the disconnection or docking between the limit belt 3 and the second conveyor belt 4, the fourth conveying mechanism includes a docking plate 5.

[0038] When the docking plate 5 moves downwards until one end is attached to the limiting belt 3 and the other end is attached to the second conveyor belt 4, the limiting belt 3 and the second conveyor belt 4 are docked. The docking plate 5 is tilted, with the end near the second conveyor belt 4 tilting downwards, allowing the flipped aluminum-plastic cap to slide from the docking plate 5 onto the second conveyor belt 4 for continued conveying. The cap is then captured and inspected by a high-definition camera located below. If the aluminum-plastic cap has been detected as defective while being conveyed on the first conveyor belt 2, the docking plate 5 moves upwards, causing the limiting belt 3 to disconnect from the second conveyor belt 4. After passing through the clamping and flipping area, the aluminum-plastic cap can fall directly through the gap between the limiting belt 3 and the second conveyor belt 4. A collection container can be placed at this location to collect the defective aluminum-plastic cap.

[0039] By setting the docking plate 5, the limit belt 3 and the second conveyor belt 4 can be disconnected or docked, which makes it easier for unqualified aluminum-plastic caps to be directly unloaded after single-sided inspection, thus improving inspection efficiency.

[0040] In actual use, ball bearings or other structures can be installed at both ends of the bottom of the docking plate 5 to reduce friction. At the same time, the upper surface of the docking plate 5 is made smooth to ensure stable sliding of the aluminum-plastic cover. Furthermore, the tilt angle of the docking plate 5 is appropriate to prevent the aluminum-plastic cover from rolling over.

[0041] Considering that the thickness of the clamping and flipping area remains unchanged when not controlled by external tools, if the aluminum-plastic cap is small, it is easy to slide freely due to insufficient clamping force, thus failing to achieve the purpose of flipping; if the aluminum-plastic cap is large, it is easy to deform due to excessive compression. In order to improve the applicability of the flipping device, a thin section 701 is provided on the second cylinder 7. A pressure cup 11 for squeezing the aluminum-plastic cap through the recess 201 is provided at the thin section 701. An electric push rod 8 is fixedly installed on the thin section 701. A moving rod 9 is fixedly connected to the telescopic end of the electric push rod 8. A sliding channel 10 for the moving rod 9 to slide is opened on the second cylinder 7. The pressure cup 11 is fixedly connected to the moving rod 9.

[0042] Furthermore, the thickness of the clamping and flipping area is relatively large, which can accommodate larger aluminum-plastic caps.

[0043] The electric push rod 8 is used to move the moving rod 9 and the pressure cup 11.

[0044] When one of the aluminum-plastic caps enters the top position of the clamping and flipping area, the pressure cup 11 and the electric push rod 8 are in a vertically upward state. At this time, the telescopic end of the electric push rod 8 is extended, causing the pressure cup 11 to squeeze and limit the aluminum-plastic cap through the recess 201. The recess 201 deforms adaptively, preventing the aluminum-plastic cap from sliding freely. The top of the pressure cup 11 surrounds the outside of the aluminum-plastic cap, and the squeezing force is appropriate, preventing deformation of the aluminum-plastic cap. Then, the first conveyor belt 2 rotates counterclockwise, and the limiting belt 3 rotates clockwise (refer to...). Figure 2 With the assistance of the pressure cup 11 and the electric push rod 8, the aluminum-plastic cap stably passes through the clamping and flipping area and completes the flipping operation.

[0045] When the electric push rod 8 moves the pressure cup 11, the moving rod 9 can slide inside the sliding channel 10 to ensure the stability of the pressure cup 11 and other structures.

[0046] In actual use, the moving distance of the pressure cup 11 can be adjusted according to the size of the aluminum-plastic cap. For example, if the axial length of a certain batch of aluminum-plastic caps is large, the moving distance of the pressure cup 11 will be smaller to ensure that the aluminum-plastic caps will not deform or slip off. This moving distance can be adjusted according to the size of the aluminum-plastic caps before production.

[0047] In addition, a power supply device is provided on the thin section 701 to power the electric push rod 8. The power supply device includes a battery and other structures. The power supply device is a common existing technology and will not be described in detail here.

[0048] Simultaneously, aluminum-plastic caps are fed according to the rotation frequency of the pressure cup 11. For example, after the aluminum-plastic cap has stably passed through the clamping and flipping area and completed the flipping operation, the telescopic end of the electric push rod 8 is retracted. When the pressure cup 11 and the electric push rod 8 are vertically upward again, the next aluminum-plastic cap enters the top position of the clamping and flipping area. The pressure cup 11 squeezes and limits the aluminum-plastic cap through the recess 201, thereby realizing continuous production.

[0049] To control the position of the docking plate 5, a first sliding box 16 and a second sliding box 17 are provided on the side of the second cylinder 7. Both the first sliding box 16 and the second sliding box 17 are arc-shaped, and the side of the first sliding box 16 and the second sliding box 17 that are close to each other is a concave side. The first sliding box 16 is fixedly connected to the moving rod 9, and a limit block 26 is fixedly connected to the second sliding box 17. A limit groove 25 is provided on the outer wall of the second cylinder 7 for the limit block 26 to slide. The limit block 26 and the limit groove 25 can be set to a T shape to ensure the stability of the sliding. A ball bearing or the like can be provided between the limit block 26 and the limit groove 25 to ensure the smoothness of the sliding.

[0050] Two slide bars 18 are provided between the first slide box 16 and the second slide box 17. The first slide box 16, the second slide box 17 and the two slide bars 18 form a pressure ring with an adjustable radius. Both ends of the side of the first slide box 16 and the second slide box 17 are provided with arc tracks 19. A round rod 20 is slidably provided inside the arc track 19. The round rod 20 is fixedly connected to the corresponding slide bar 18. The arc track 19 and the round rod 20 are provided to ensure the stability of the cooperation between the slide bar 18 and the first slide box 16 and the second slide box 17.

[0051] When the radius of the pressure ring increases, the ends of the two sliders 18 that are close to each other in the first slide box 16 and the ends of the two sliders 18 that are close to each other in the second slide box 17 move away from each other, and the round rod 20 slides adaptively in the arc track 19; when the radius of the pressure ring decreases, the ends of the two sliders 18 that are close to each other in the first slide box 16 and the ends of the two sliders 18 that are close to each other in the second slide box 17 move closer to each other, and the round rod 20 slides adaptively in the arc track 19.

[0052] To achieve stable adjustment of the pressure ring radius, a first rack 23 is fixedly connected to the first slide box 16, a second rack 24 is fixedly connected to the second slide box 17, and a round shaft 21 is fixedly connected to the second cylinder 7. The round shaft 21 is rotatably mounted on the frame 1 and is concentrically arranged with the second cylinder 7. A gear 22 is rotatably connected to the round shaft 21. The first rack 23 and the second rack 24 are respectively distributed on both sides of the gear 22, and both the first rack 23 and the second rack 24 are meshed with the gear 22.

[0053] The pressure ring can rotate synchronously with the second cylinder 7, the shifting rod 9, the pressure cup 11, etc.

[0054] Reference Figure 7 , Figure 9 As shown, when the electric push rod 8 drives the moving rod 9 and the pressure cup 11 to move to the left (away from the thin segment 701), the moving rod 9 moves to the left and drives the first sliding box 16 to move synchronously. Since the first rack 23 and the second rack 24 are respectively distributed on both sides of the gear 22, and both the first rack 23 and the second rack 24 are meshed with the gear 22, the second sliding box 17 will move to the right. The ends of the two slide bars 18 that are close to each other in the first sliding box 16 and the ends of the two slide bars 18 that are close to each other in the second sliding box 17 will move away from each other, and the radius of the pressure ring will increase. If the electric push rod 8 drives the moving rod 9 and the pressure cup 11 to move to the right (away from the thin segment 701), the radius of the pressure ring will decrease.

[0055] The inner walls on both sides of the frame 1 are provided with sliding grooves 12. Slide plates 13 are slidably arranged inside the sliding grooves 12. The docking plate 5 is fixedly connected between the two slide plates 13. A spring 15 is provided inside the sliding grooves 12. The top end of the spring 15 is fixedly connected to the slide plate 13, and the bottom end of the spring 15 is fixedly connected to the bottom of the sliding grooves 12. The spring 15 is provided to assist the docking plate 5 in resetting via the slide plates 13.

[0056] When the slide plate 13 slides downward inside the slide groove 12, causing the spring 15 to fully contract, at this time, one end of the docking plate 5 is attached to the limiting belt 3, and the other end is attached to the second conveyor belt 4, so that the limiting belt 3 and the second conveyor belt 4 are docked.

[0057] One of the slide plates 13 is fixedly connected to the top of an elastic telescopic rod 14, and the top of the elastic telescopic rod 14 abuts against the pressure ring. The elastic support force of the elastic telescopic rod 14 is greater than the elastic support force of the spring 15. When the pressure ring contacts the elastic telescopic rod 14 and presses the elastic telescopic rod 14 downward, the spring 15 contracts first. After the spring 15 is fully contracted, the elastic telescopic rod 14 contracts again.

[0058] The top end of the elastic telescopic rod 14 is equipped with balls to reduce friction with the pressure ring and ensure stable fit; and both ends of the first slide box 16 and the second slide box 17 are rounded to ensure that the top end of the elastic telescopic rod 14 slides stably on the outer ring of the pressure ring.

[0059] By setting up structures such as the shift rod 9 and using the movement of the pressure cup 11 as power, the radius of the pressure ring can be adjusted efficiently.

[0060] By setting up structures such as the first rack 23 and the second rack 24, the radius of the pressure ring can be stably adjusted.

[0061] In actual use, if one of the aluminum-plastic caps has been inspected and approved during its transport on the first conveyor belt 2, when the cap enters the top position of the clamping and flipping area, the pressure cup 11 and the electric push rod 8 are in a vertically upward position. At this time, the telescopic end of the electric push rod 8 is extended, causing the pressure cup 11 to squeeze and limit the aluminum-plastic cap through the recess 201. The recess 201 deforms adaptively, preventing the cap from sliding freely. The top of the pressure cup 11 surrounds the outside of the cap, and the squeezing force is appropriate, preventing deformation of the cap. At this time, the shift rod 9 moves away from the thin segment 701, which increases the radius of the pressure ring. The pressure ring can squeeze the elastic telescopic rod 14. When the pressure ring contacts the elastic telescopic rod 14 and squeezes the elastic telescopic rod 14 downward, the elastic support force of the elastic telescopic rod 14 is greater than the elastic support force of the spring 15. The spring 15 contracts first. After the spring 15 is fully contracted, the elastic telescopic rod 14 contracts again. At this time, one end of the docking plate 5 is attached to the limiting belt 3 and the other end is attached to the second conveyor belt 4, so that the limiting belt 3 and the second conveyor belt 4 are docked.

[0062] Then the first conveyor belt 2 rotates counterclockwise, and the limiting belt 3 rotates clockwise (see reference). Figure 2 With the assistance of the pressure cup 11 and the electric push rod 8, the aluminum-plastic cap stably passes through the clamping and flipping area and completes the flipping operation. It then slides from the docking plate 5 onto the second conveyor belt 4 for continued conveying. At the same time, a high-definition camera at the bottom takes pictures and detects the contents. When the caps are being conveyed and detected on the second conveyor belt 4, the operator can pick out the unqualified ones and use a container to collect the qualified aluminum-plastic caps for the next process.

[0063] Because the elastic telescopic rod 14 can adapt to shrinking, and the elastic support force of the elastic telescopic rod 14 is greater than that of the spring 15, the radius of the pressure ring can adapt to changes in the size of the aluminum-plastic cap. The pressure ring can be stably matched with the elastic telescopic rod 14, so that the limiting belt 3 can dock with the second conveyor belt 4. For example, when the axial length of a certain batch of aluminum-plastic caps is large, the distance that the pressure cup 11 moves is smaller, and the radius of the pressure ring is smaller. At this time, the pressure ring contacts the elastic telescopic rod 14, the spring 15 shrinks first, and after the spring 15 has fully shrunk, the elastic telescopic rod 14 shrinks again, but the elastic telescopic rod 14 shrinks less.

[0064] After the flipping operation is completed, the telescopic end of the electric push rod 8 is retracted. When the pressure cup 11 and the electric push rod 8 are vertically upward again, the next aluminum-plastic cap enters the top position of the clamping and flipping area. The qualified aluminum-plastic cap repeats the above steps.

[0065] The aluminum-plastic cap was detected as unqualified when it was conveyed on the first conveyor belt 2. When the aluminum-plastic cap entered the top position of the clamping and flipping area, the telescopic end of the electric push rod 8 remained in the retracted state. The pressure cup 11, the moving rod 9 and other objects were close to the thin section 701, and the radius of the pressure ring was the smallest. At this time, the pressure ring would not contact the elastic telescopic rod 14. Under the elastic support force of the spring 15, the docking plate 5 moved upward, causing the limiting belt 3 to break away from the second conveyor belt 4. After passing through the clamping and flipping area, the aluminum-plastic cap could fall directly through the gap between the limiting belt 3 and the second conveyor belt 4.

[0066] This invention, by setting up a recessed part 201, a clamping and flipping area, a docking plate 5 and other structures, is applicable to aluminum-plastic caps of various sizes, and squeezes and limits the aluminum-plastic caps to ensure stable flipping. It can also directly unload unqualified aluminum-plastic caps, thereby improving the efficiency of the flipping device for the fully automatic aluminum-plastic cap automatic inspection machine.

[0067] The pressure cup 11 and the docking plate 5 work together to effectively coordinate based on the qualified status of the aluminum-plastic cap, thereby improving the effective utilization rate of resources.

Claims

1. A flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine, comprising a frame (1), characterized in that: The frame (1) is provided with a first transmission mechanism, a second transmission mechanism, a third transmission mechanism and a fourth transmission mechanism; The first conveying mechanism includes a first conveyor belt (2), which is mounted on the frame (1). The outer ring of the first conveyor belt (2) is provided with a recess (201) for placing an aluminum-plastic cap. The second conveying mechanism includes a limiting belt (3), which is set on the frame (1). The limiting belt (3) is distributed in a V shape and forms a clamping and flipping area with one end of the first conveyor belt (2). The third conveying mechanism includes a second conveyor belt (4), which is mounted on the frame (1) and located below the first conveyor belt (2); The fourth conveying mechanism includes a docking plate (5) for disconnecting or docking the limiting belt (3) with the second conveyor belt (4). The frame (1) is rotatably provided with a second cylinder (7) for the first conveyor belt (2) to be wound around near the limiting belt (3), and the second cylinder (7) has a thin segment (701), and a pressure cup (11) is provided at the thin segment (701) for pressing the aluminum-plastic cap through the recess (201), and the pressure cup (11) is linked with the docking plate (5).

2. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 1, characterized in that: An electric push rod (8) is fixedly installed on the thin section (701), and a sliding rod (9) is fixedly connected to the telescopic end of the electric push rod (8). A sliding channel (10) for the sliding rod (9) is opened on the second cylinder (7), and the pressure cup (11) is fixedly connected to the sliding rod (9).

3. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 1, characterized in that: The frame (1) has sliding grooves (12) on both inner walls. Slide plates (13) are slidably arranged inside the sliding grooves (12). The docking plate (5) is fixedly connected between the two slide plates (13). Springs (15) are arranged inside the sliding grooves (12).

4. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 3, characterized in that: The second cylinder (7) is provided with a first sliding box (16) and a second sliding box (17) on its side. Both the first sliding box (16) and the second sliding box (17) are arc-shaped, and the side of the first sliding box (16) and the second sliding box (17) that are close to each other is a concave side. The first sliding box (16) is fixedly connected to the moving rod (9), and a limiting block (26) is fixedly connected to the second sliding box (17). A limiting groove (25) for the limiting block (26) to slide is opened on the outer wall of the second cylinder (7). Two sliding strips (18) are provided between the first sliding box (16) and the second sliding box (17). The first sliding box (16), the second sliding box (17) and the two sliding strips (18) form a pressure ring. An elastic telescopic rod (14) is fixedly connected to the top of one of the sliding plates (13), and the top of the elastic telescopic rod (14) abuts against the pressure ring.

5. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 4, characterized in that: Both ends of the first slide box (16) and the second slide box (17) are provided with arc tracks (19), and a round rod (20) is slidably arranged inside the arc track (19), and the round rod (20) is fixedly connected to the corresponding slide bar (18).

6. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 4, characterized in that: A first rack (23) is fixedly connected to the first slide box (16), a second rack (24) is fixedly connected to the second slide box (17), and a round shaft (21) is fixedly connected to the second cylinder (7). The round shaft (21) and the second cylinder (7) are concentrically arranged. A gear (22) is rotatably connected to the round shaft (21). The first rack (23) and the second rack (24) are respectively distributed on both sides of the gear (22). The first rack (23) and the second rack (24) are both meshed with the gear (22).

7. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 1, characterized in that: The docking plate (5) is inclined, and the end near the second conveyor belt (4) is inclined downward.

8. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 1, characterized in that: The frame (1) is rotatably provided with a first cylinder (6) and two fifth cylinders (29) are rotatably provided on the frame (1). The first cylinder (6), the second cylinder (7) and the two fifth cylinders (29) are connected by a first conveyor belt (2).

9. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 1, characterized in that: The frame (1) is rotatably provided with a third cylinder (27), and there are three third cylinders (27). The three third cylinders (27) are connected by a limiting belt (3). The frame (1) is rotatably provided with two fourth cylinders (28). The two fourth cylinders (28) are connected by a second conveyor belt (4).

10. The flip-top device for a fully automatic aluminum-plastic cap automatic inspection machine according to claim 1, characterized in that: A motor (30) is installed on the frame (1).

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