Intelligent multidirectional glue conveying system

Abstract

The invention relates to an intelligent multidirectional glue conveying system which comprises a conveyor, a rotating device and universal wheels are arranged on the two sides of the bottom of a rack respectively, a plurality of bottom plates are arranged on a conveyor belt at intervals, sealing rings and positioning rings are arranged on the bottom plates, a fixed beam is arranged above the conveyor, a linear motor is arranged on the fixed beam, and the linear motor is connected with a first telescopic part. A controller and a cylinder body are arranged on the outer wall of the clock cover, a piston is arranged in the cylinder body, an air cylinder is connected between the piston and the cylinder body, an air pressure sensor is arranged on the inner wall of the clock cover, outer covers are connected to the opposite inner walls of the clock cover through second telescopic pieces, the outer covers are matched with the plastic bottle structure, and third telescopic pieces are arranged on the opposite inner walls of the clock cover. A pressure sensor is arranged at the telescopic end of the third telescopic part. According to the invention, sealing performance inspection and solidification condition inspection can be carried out on packaged glue products in the conveying process, bad products can be automatically removed after inspection, the detection efficiency is high, the detection is convenient, and multidirectional conveying can be realized during inspection.

Description

Technical Field

[0001] This invention belongs to the field of adhesive delivery technology, and specifically relates to an intelligent multidirectional adhesive delivery system. Background Technology

[0002] Adhesive is a substance used to bond two objects together. Before leaving the factory, adhesive needs to be sealed. If the seal is not good, the polymer molecules in the adhesive will react chemically with moisture in the air, causing the polymer molecules to form a cross-linked network and solidify rapidly. Currently, some adhesives on the market, such as 502, are generally packaged in plastic bottles for cost reasons. To prevent adhesive from spilling out of the plastic bottle, it is usually not filled completely. After the adhesive is injected into the plastic bottle, a conical cap is attached to it with threads. When using it, the top of the cap needs to be cut off, and the adhesive is squeezed out by pressing the plastic bottle. Therefore, poor sealing between the plastic bottle and cap, or the presence of tiny cracks in the plastic bottle or cap, can allow outside air to enter the plastic bottle, causing the adhesive to solidify. However, some adhesive may have poor sealing and solidification issues during the production process or after packaging and storage. Shipping such products without inspection will affect product quality and consequently, market reputation. Summary of the Invention

[0003] This invention provides an intelligent multi-directional adhesive conveying system that can perform sealing and solidification tests on packaged adhesive products during the conveying process. Defective products can be rejected after the tests, making the system highly efficient and convenient. During the tests, the system can also achieve multi-directional conveying to transport qualified products to different locations, facilitating the collection of qualified adhesive.

[0004] The technical solution adopted in this invention:

[0005] An intelligent multidirectional glue delivery system includes a conveyor. The conveyor includes a frame, an electric roller on one side of the frame, and a driven roller on the other side. A conveyor belt connects the electric roller and the driven roller. Rotating devices and casters are respectively installed on both sides of the bottom of the frame. A support frame is installed inside the frame, with its top resting on the lower surface of the conveyor belt. Multiple base plates are spaced apart on the conveyor belt. Sealing rings and positioning rings are installed on the base plates, with the positioning rings located inside the sealing rings. A fixed beam is installed above the conveyor, and a linear motor is mounted on the fixed beam. The linear motor is connected to a telescopic component, which is connected to a bell-shaped cover that matches the sealing rings. The outer wall of the bell cover is equipped with a controller and a cylinder. The cylinder is connected to the inside of the bell cover and contains a piston. A cylinder is connected between the piston and the inner wall of the cylinder. A pressure sensor is provided on the inner wall of the bell cover. An outer cover is connected to the opposite inner wall of the bell cover via a telescopic component two. The outer cover matches the structure of the plastic bottle. A clearance hole is provided on the side wall of the outer cover. A telescopic component three is provided on the opposite inner wall of the bell cover. A pressure sensor is provided on the telescopic end of the telescopic component three. The pressure sensor is aligned with the clearance hole. The controller is electrically connected to an electric roller, a linear motor, telescopic component one, telescopic component two, telescopic component three, the pressure sensor, and the cylinder.

[0006] Furthermore, the rotating device includes a base box, a motor is installed inside the base box, the motor is connected to a rotating shaft, the rotating shaft is rotatably mounted on the top of the base box, and the rotating shaft is connected to the bottom of the frame.

[0007] Furthermore, a pusher rod is provided on the side wall of the frame, which is used to push the plastic bottle out of the positioning ring.

[0008] Furthermore, an elastic connecting block connects the base plate and the conveyor belt.

[0009] Furthermore, the verification method for this system is as follows:

[0010] S1. The controller controls the electric roller to drive the conveyor belt to transport the plastic bottle to be inspected in the positioning ring to the bottom of the bell cover. The controller controls the telescopic component to drive the bell cover to press on the sealing ring.

[0011] S2. The controller controls the two telescopic components to move the two outer covers to fit against the outer wall of the plastic bottle to prevent the plastic bottle from expanding.

[0012] S3. The controller controls the cylinder to drive the piston to slide rapidly away from the bell cover, so that the air pressure inside the bell cover drops rapidly. During the rapid depressurization process, if the plastic bottle is not sealed properly, the air inside cannot be discharged synchronously with the cylinder movement. Instead, it will continue to discharge into the bell cover after the piston stops moving, waiting for the preset time.

[0013] S4. During the execution of step S3, use a pressure sensor to monitor the air pressure inside the bell lid. If the air pressure is detected to first decrease and then increase, it indicates that the plastic bottle has a poor seal and is leaking air. Then proceed to step S5.

[0014] If the air pressure is detected to decrease first and then not increase, it means that the plastic bottle is well sealed and there is no air leakage. Then proceed to step S6.

[0015] S5. The controller controls the two telescopic components three to move the two pressure sensors a set distance to clamp the plastic bottle. The controller controls the telescopic component one to raise the bell cover so that the plastic bottle leaves the positioning ring until the bell cover is higher than the plastic bottle on the conveyor belt. The controller controls the linear motor to move the bell cover and the plastic bottle to one side of the conveyor belt. The controller controls the two telescopic components three to release the plastic bottle. At the same time, the controller controls the two telescopic components two to move the two outer covers away from the plastic bottle. The controller controls the linear motor to move the bell cover back above the conveyor belt and jumps to execute step S1.

[0016] S6. The controller controls the two telescopic parts to move the two pressure sensors a set distance, so that the two pressure sensors press against the two sides of the plastic bottle.

[0017] The pressure sensor detects the squeezing force on the plastic bottle. When the pressure value reaches the preset value one, the controller controls the telescopic component one to drive the bell cover to rise and make the plastic bottle leave the positioning ring until the bell cover is higher than the plastic bottle on the conveyor belt. The controller controls the linear motor to drive the bell cover and the plastic bottle to one side of the conveyor belt. The controller controls the two telescopic components three to retract and make the two pressure sensors release the plastic bottle. At the same time, the controller controls the two telescopic components two to drive the two outer covers away from the plastic bottle body. The controller controls the linear motor to drive the bell cover back above the conveyor belt and jumps to execute step S1.

[0018] If the pressure value reaches the preset value two, which is less than the preset value one, the controller controls the two telescopic parts three to move the two pressure sensors to release the plastic bottle. At the same time, the controller controls the two telescopic parts two to move the two outer covers away from the plastic bottle. The controller controls the telescopic part one to move the bell cover up until it is higher than the plastic bottle on the conveyor belt, and then jumps to the execution of step S1.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention utilizes a cylinder to drive a piston to slide rapidly, causing a pressure drop inside the bell lid. A pressure sensor detects the pressure change inside the lid, effectively verifying the seal of the sealed plastic bottle. Two telescopic rods drive two pressure sensors to press against the bottle. The pressure sensors detect the reaction force of the bottle. In a solidified state, the reaction force of the bottle against the pressure sensors is large; in a non-solidified state, due to the elasticity of the plastic bottle and the liquid inside, the bottle wall shrinks after compression, resulting in a smaller reaction force. This effectively verifies the solidification of the glue inside the plastic bottle. After detecting poorly sealed or solidified products, a linear motor and telescopic components work together to move the plastic bottle to the side outside the conveyor belt for automatic rejection. This method is highly efficient and convenient. Furthermore, multi-directional conveying can be achieved during inspection, allowing qualified products to be transported to different locations, facilitating the collection of qualified glue. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0023] Figure 3 This is a schematic diagram of the fit between the outer cover and the plastic bottle;

[0024] Figure 4 This is a schematic diagram of the electronic control principle of the present invention;

[0025] In the diagram: 1. Base box; 2. Motor; 3. Sealing ring; 4. Conveyor belt; 5. Plastic bottle; 6. Caster wheel; 7. Push rod; 8. Support frame; 9. Frame; 10. Rotating shaft; 11. Telescopic component one; 12. Controller; 13. Air pressure sensor; 14. Outer cover; 15. Telescopic component two; 16. Bell cover; 17. Positioning ring; 18. Clearance hole; 19. Telescopic component three; 20. Cylinder body; 21. Pressure sensor; 22. Cylinder; 23. Piston; 24. Linear motor; 25. Fixed beam; 26. Base plate; 27. Elastic connecting block. Detailed Implementation

[0026] To better understand the technical content of this invention, specific embodiments are provided below, and the invention will be further described in conjunction with the accompanying drawings.

[0027] See Figures 1 to 4This invention provides an intelligent multidirectional glue delivery system, including a conveyor. The conveyor includes a frame 9, with an electric roller on the left side and a driven roller on the right side. A conveyor belt 4 connects the electric roller and the driven roller, and the electric roller and the driven roller work together to drive the conveyor belt 4 for conveying. A rotating device and casters 6 are respectively located on the left and right sides of the bottom of the frame 9. The rotating device can drive the frame 9 to rotate horizontally by a set angle. The casters 6 provide auxiliary support for the right side of the frame 9. A support frame 8 is fixed inside the frame 9. When the bell cover 16 presses against the sealing ring 3, the top of the support frame 8 supports the lower surface of the conveyor belt 4, preventing the conveyor belt 4 from being excessively pressed downwards and thus improving the sealing connection between the bell cover 16 and the sealing ring 3. The conveyor belt 4 has spaced... Multiple base plates 26, made of rigid steel plates, provide planar support to improve the sealing between the bell cover 16 and the sealing ring 3. The base plate 26 has a sealing ring 3 and a positioning ring 17, both made of rubber. The positioning ring 17 is located inside the sealing ring 3 and is used to fix the plastic bottle 5 sealed with glue. A fixed beam 25 is fixed above the conveyor, with a guide rail on it. A linear motor 24 is mounted on the guide rail, allowing it to slide laterally along the conveyor. A telescopic component 11 is fixedly connected to the linear motor 24, with the telescopic end of the telescopic component 11 fixedly connected to the bell cover 16. The bell cover 16 matches the sealing ring 3. When the bell cover 16 presses against the sealing ring 3, the bell cover 16... The sealing ring 3 and the base plate 26 form a sealed space. A controller 12 and a cylinder 20 are fixedly mounted on the outer wall of the bell cover 16. The cylinder 20 is connected to the inside of the bell cover 16. A piston 23 slides inside the cylinder 20. A cylinder 22 connects the piston 23 to the inner wall of the cylinder 20, allowing the piston to slide rapidly within the cylinder 20. A pressure sensor 13 is mounted on the inner wall of the bell cover 16 to detect the pressure inside. Outer covers 14 are connected to the opposite inner walls of the bell cover 16 via telescopic components 15. When the two outer covers 14 are closed, the two telescopic components 15 can move the two outer covers 14 away from or closer to each other. The two outer covers 14 perfectly enclose the plastic bottle 5 and fit against the outer wall of the plastic bottle 5, preventing the contents of the bell cover 16 from entering the bottle. When the pressure decreases, the plastic bottle 5 expands, which helps improve the accuracy of air pressure detection. The outer cover 14 has a clearance hole 18 on its side wall. Telescopic components 19 are fixedly installed on the opposite inner walls of the bell cover 16. A pressure sensor 21 is fixedly installed on the telescopic end of the telescopic component 19. The pressure sensor 21 is used to detect the pressure value on the plastic bottle 5 and can also clamp the plastic bottle 5. The pressure sensor 21 is aligned with the clearance hole 18 and can pass through the clearance hole 18 to press against the plastic bottle 5. The controller 12 is electrically connected to the electric roller, linear motor 24, telescopic component 11, telescopic component 25, telescopic component 19, air pressure sensor 13, pressure sensor 21, and cylinder 22. The controller 12 is used to control the operation of the relevant electrical components.Telescopic components 11, 15, and 19 employ existing technologies such as electric push rods or hydraulic telescopic cylinders.

[0028] Specifically, the rotating device includes a base box 1, with a motor 2 installed at the top inside the base box 1. The motor 2 is connected to a rotating shaft 10, which rotatably passes through the top of the base box 1 and is fixedly connected to the bottom of the frame 9. When the conveying direction needs to be adjusted, the base box 1 is fixedly installed on the ground, and the motor 2 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the frame 9 to rotate around the axis of the rotating shaft 10 by a set angle. With the cooperation of the casters 6, the end of the conveyor turns to the preset direction.

[0029] Specifically, a push rod 7 is fixedly inclined on the side wall of the frame 9. After the plastic bottle 5 is inspected and transferred to the end, the push rod 7 can push the plastic bottle 5 out of the positioning ring 17 for easy collection.

[0030] Specifically, an elastic connecting block 27 is connected between the base plate 26 and the conveyor belt 4. The elastic connecting block 27 is made of rubber material and can effectively connect the base plate 26 to the conveyor belt 4.

[0031] Specifically, the testing method for this system is as follows:

[0032] S1. The controller 12 controls the electric roller to drive the conveyor belt 4 for intermittent conveying. The conveyor belt 4 can sequentially transport the plastic bottles 5 to be inspected in each positioning ring 17 to the bottom of the bell cover 16. When the plastic bottles 5 to be inspected are transported to the bottom of the bell cover 16, the controller 12 controls the telescopic component 11 to drive the bell cover 16 to press against the sealing ring 3.

[0033] S2, Controller 12 controls the two telescopic parts 15 to move the two outer covers 14 to just fit against the outer wall of the plastic bottle 5, so as to prevent the plastic bottle 5 from expanding after the bell cover 16 rapidly depressurizes.

[0034] S3. The controller 12 controls the cylinder 22 to drive the piston 23 to slide rapidly away from the bell cover 16, so that the air pressure inside the bell cover 16 drops rapidly. During the rapid depressurization process, if the plastic bottle 5 is not sealed properly, the air inside the plastic bottle 5 cannot be discharged synchronously with the cylinder 22. Instead, it will continue to discharge into the bell cover 16 after the piston 23 stops moving, waiting for 3 to 10 seconds.

[0035] S4. During the execution of step S3, the air pressure inside the bell cover 16 is monitored using the air pressure sensor 13. If the air pressure is detected to decrease first and then increase, it indicates that the plastic bottle 5 has a poor seal and is leaking air. Then, step S5 is executed.

[0036] If the air pressure is detected to decrease first and then not increase, it means that the plastic bottle 5 is well sealed and there is no air leakage, then proceed to step S6.

[0037] S5. Controller 12 controls two telescopic components 19 to move two pressure sensors 21 a set distance, clamping the plastic bottle 5. Controller 12 controls telescopic component 11 to raise the bell cover 16, causing the plastic bottle 5 to leave the positioning ring 17, until the bell cover 16 is higher than the plastic bottle 5 on the conveyor belt 4. Controller 12 controls linear motor 24 to move the bell cover 16 and the plastic bottle 5 to one side of the conveyor belt 4. Controller 12 controls two telescopic components 19 to retract simultaneously, causing the two pressure sensors 21 to release the plastic bottle 5 from both sides. At the same time, controller 12 controls two telescopic components 15 to retract and move two outer covers 14 away from the plastic bottle 5, causing the plastic bottle 5 to fall to the outside of the conveyor belt 4. Controller 12 controls linear motor 24 to move the bell cover 16 back above the conveyor belt 4 to prepare for the inspection of the next plastic bottle 5, and jumps to step S1.

[0038] S6, Controller 12 controls the two telescopic components 19 to move the pressure sensors 21 a certain distance along the relatively close direction, so that the two pressure sensors 21 are pressed against the two sides of the plastic bottle 5 respectively:

[0039] The pressure sensor 21 is used to detect the squeezing force on the plastic bottle 5. If the pressure value reaches the preset value 1, and the preset value 1 is a large pressure value, it indicates that the glue inside the plastic bottle 5 has solidified, resulting in a large reaction force of the plastic bottle 5 on the pressure sensor 21. The controller 12 controls the telescopic component 11 to drive the bell cover 16 to rise, so that the plastic bottle 5 leaves the positioning ring 17. Until the upper bell cover 16 is higher than the plastic bottle 5 on the conveyor belt 4, the controller 12 controls the linear motor 24 to drive the bell cover 16 and the plastic bottle 5 to one side of the conveyor belt 4. The controller 12 controls the two telescopic components 19 to retract simultaneously, so that the two pressure sensors 21 release the two sides of the plastic bottle 5. At the same time, the controller 12 controls the two telescopic components 15 to retract and drive the two outer covers 14 away from the plastic bottle 5 respectively, so that the plastic bottle 5 is moved to the outside of the conveyor belt 4. The controller 12 controls the linear motor 24 to drive the bell cover 16 back above the conveyor belt 4 to prepare for the inspection of the next plastic bottle 5, and jumps to the execution of step S1.

[0040] If the pressure value reaches the preset value two, which is less than the preset value one, it indicates that the glue inside the plastic bottle 5 has not solidified, and the reaction force of the plastic bottle 5 on the pressure sensor 21 is small. The controller 12 controls the two telescopic parts three 19 to retract and drive the two pressure sensors 21 to release the two sides of the plastic bottle 5. At the same time, the controller 12 controls the two telescopic parts two 15 to drive the two outer covers 14 away from the plastic bottle 5 respectively. The controller 12 controls the telescopic part one 11 to drive the bell cover 16 to rise above the plastic bottle 5 on the conveyor belt 4 in preparation for inspecting the next plastic bottle 5, and jumps to the execution of step S1.

[0041] This invention utilizes cylinder 22 to drive piston 23 to slide rapidly, causing a rapid drop in air pressure inside bell lid 16. After waiting for a preset time of 3-10 seconds, for products with generally poor sealing, the leakage gap is small and the leakage air velocity is slow, generally solidifying only after a long storage period after sealing. Therefore, using pressure sensor 13 to detect the air pressure change inside bell lid 16 can effectively test the sealing performance of such products. For products with strictly poor sealing, the leakage gap is large, generally solidifying within a short time after sealing. Therefore, using two telescopic rods to drive two pressure sensors 21 to press against the bottle body, the pressure sensors 21 detect the pressure change on the bottle body. The reaction force of the bottle body on the pressure sensor 21 is large when the bottle is in a solidified state, but small when it is not solidified. Due to the elasticity of the plastic bottle 5 and the liquid stored inside, the bottle wall will shrink after being squeezed, resulting in a small reaction force on the pressure sensor 21. This can effectively check the solidification of the glue inside the plastic bottle 5. After detecting unqualified products, the plastic bottle 5 can be moved to the side outside the conveyor belt 4 for automatic rejection by using the cooperation of the linear motor 24 and the telescopic part 11. The detection efficiency is high and convenient. During the inspection, multi-directional conveying can also be realized to transport qualified products to different positions, which is convenient for collecting qualified glue.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An intelligent multi-directional glue conveying system, comprising a conveyor, the conveyor including a frame, an electric roller disposed on one side of the frame, a driven roller disposed on the other side, and a conveyor belt connecting the electric roller and the driven roller, characterized in that: The bottom of the frame is equipped with a rotating device and casters on both sides. A support frame is installed inside the frame, with its top resting on the lower surface of the conveyor belt. Multiple base plates are spaced apart on the conveyor belt, each with a sealing ring and a positioning ring. The positioning ring is located inside the sealing ring. A fixed beam is installed above the conveyor, and a linear motor is mounted on the fixed beam. The linear motor is connected to a telescopic component, which is connected to a bell cover. The bell cover matches the sealing ring. A controller and a cylinder are installed on the outer wall of the bell cover, with the cylinder communicating with the interior of the bell cover. The cylinder contains a piston, which is connected to the inner wall of the cylinder by a cylinder. A pressure sensor is installed on the inner wall of the bell cover. An outer cover is connected to the opposite inner wall of the bell cover via a telescopic component two. The outer cover matches the structure of the plastic bottle. A clearance hole is provided on the side wall of the outer cover. A telescopic component three is provided on the opposite inner wall of the bell cover. A pressure sensor is installed on the telescopic end of the telescopic component three. The pressure sensor is aligned with the clearance hole. The controller is electrically connected to the electric roller, linear motor, telescopic component one, telescopic component two, telescopic component three, pressure sensor, and cylinder.

2. The intelligent multidirectional glue delivery system according to claim 1, characterized in that: The rotating device includes a base box, a motor is installed inside the base box, the motor is connected to a rotating shaft, the rotating shaft is rotatably mounted on the top of the base box, and the rotating shaft is connected to the bottom of the frame.

3. The intelligent multidirectional glue delivery system according to claim 1, characterized in that: The frame sidewall is provided with a pusher rod, which is used to push the plastic bottle out of the positioning ring.

4. The intelligent multidirectional glue delivery system according to claim 1, characterized in that: An elastic connecting block connects the base plate and the conveyor belt.

5. An intelligent multidirectional glue delivery system according to any one of claims 1-4, characterized in that: The testing method for this system is as follows: S1. The controller controls the electric roller to drive the conveyor belt to transport the plastic bottle to be inspected in the positioning ring to the bottom of the bell cover. The controller controls the telescopic component to drive the bell cover to press on the sealing ring. S2. The controller controls the two telescopic components to move the two outer covers to fit against the outer wall of the plastic bottle to prevent the plastic bottle from expanding. S3. The controller controls the cylinder to drive the piston to slide rapidly away from the bell cover, so that the air pressure inside the bell cover drops rapidly. During the rapid depressurization process, if the plastic bottle is not sealed properly, the air inside cannot be discharged synchronously with the cylinder movement. Instead, it will continue to discharge into the bell cover after the piston stops moving, waiting for the preset time. S4. During the execution of step S3, use a pressure sensor to monitor the air pressure inside the bell lid. If the air pressure is detected to first decrease and then increase, it indicates that the plastic bottle has a poor seal and is leaking air. Then proceed to step S5. If the air pressure is detected to decrease first and then not increase, it means that the plastic bottle is well sealed and there is no air leakage. Then proceed to step S6. S5. The controller controls the two telescopic components three to move the two pressure sensors a set distance to clamp the plastic bottle. The controller controls the telescopic component one to raise the bell cover so that the plastic bottle leaves the positioning ring until the bell cover is higher than the plastic bottle on the conveyor belt. The controller controls the linear motor to move the bell cover and the plastic bottle to one side of the conveyor belt. The controller controls the two telescopic components three to release the plastic bottle. At the same time, the controller controls the two telescopic components two to move the two outer covers away from the plastic bottle so that the plastic bottle falls outside the conveyor belt, realizing the automatic rejection of unqualified products. The controller controls the linear motor to move the bell cover back above the conveyor belt and jumps to the execution of step S1 to prepare for the inspection of the next plastic bottle. S6. The controller controls the two telescopic parts to move the two pressure sensors a set distance, so that the two pressure sensors press against the two sides of the plastic bottle. The pressure sensor detects the squeezing force on the plastic bottle. When the pressure value reaches the preset value one, the controller controls the telescopic component one to drive the bell cover to rise and make the plastic bottle leave the positioning ring until the bell cover is higher than the plastic bottle on the conveyor belt. The controller controls the linear motor to drive the bell cover and the plastic bottle to one side of the conveyor belt. The controller controls the two telescopic components three to retract and make the two pressure sensors release the plastic bottle. At the same time, the controller controls the two telescopic components two to drive the two outer covers away from the plastic bottle body. The controller controls the linear motor to drive the bell cover back above the conveyor belt and jumps to execute step S1. If the pressure value reaches the preset value two, which is less than the preset value one, the controller controls the two telescopic parts three to move the two pressure sensors to release the plastic bottle. At the same time, the controller controls the two telescopic parts two to move the two outer covers away from the plastic bottle. The controller controls the telescopic part one to move the bell cover up until it is higher than the plastic bottle on the conveyor belt, and then jumps to the execution of step S1.

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