Polarized lens punching and frame inserting automation equipment
By designing polarized lens punching and cutting frame automation equipment, the problems of low production efficiency and low operating accuracy in the existing technology are solved, efficient automatic production of lenses is achieved, workers' labor intensity and hair production are reduced, and product yield is improved.
Patent Information
- Application Number
- CN202422605332.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-28
AI Technical Summary
In the production of existing lenses, the punching and frame insertion operations of polarized lenses rely on manual or semi-automation, resulting in low production efficiency, low operating accuracy, high product defect rate, and problems such as high labor intensity for workers and poor equipment compatibility.
An automatic equipment for punching and cutting of polarized lenses is designed, including a robot, a water cutting device, a lifting mechanism, an automatic push rod, an automatic fixture, a conveying mechanism, etc., to realize the automation of punching and inserting of water openings. Through the robot's pick-up and placement of the sheet, automatic fixture positioning and push rod operation, combined with heating elements, reduce the generation of dregs, and improve operating accuracy and efficiency.
It realizes efficient and automated production of polarized lenses, reduces workers' labor intensity, improves production efficiency and product yield, improves workers' working environment, and reduces lens flow time and dandruff production.
Smart Images
Figure CN223290240U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lens processing, in particular to an automated device for punching and inserting frames of polarized lenses. Background Art
[0002] Currently, in the eyewear industry, after polarized lenses are injection molded, some scraps from the gate (sprue) need to be punched out. The process is as follows: After the polarized lenses are injected, they are inserted into the frame and transferred to the gate cutting process. During the gate cutting process, workers place the lenses on the die, activate the downward pressure punch and punch twice to obtain a pair of polarized lenses. After punching, the lenses are manually inserted into the entire frame and transferred to the next process. The entire gate punching process is completed manually, which is labor-intensive and has low production efficiency. In addition, this cold cutting method easily produces lint on the edges, affecting the surface yield of the subsequent strengthening process.
[0003] In existing lens production processes, the punching and frame insertion of polarized lenses often rely on manual labor or semi-automated equipment. This is not only inefficient but also suffers from issues like low precision and increased product defect rates. Manual operations require significant manpower, and due to human factors, product stability and consistency are difficult to ensure. While semi-automated equipment can improve production efficiency to a certain extent, it often suffers from issues like a low degree of automation and poor equipment compatibility.
[0004] In view of this, the present inventor, relying on the long-term experience in lens production and manufacturing, has specially researched and designed an automated equipment for punching and inserting frames of polarized lenses, so as to improve production efficiency and increase the yield rate of subsequent processes, which led to the creation of this case. Utility Model Content
[0005] The purpose of the utility model is to provide an automated device for punching and inserting frames of polarized lenses, so as to realize the automation of gate punching and frame insertion, improve production efficiency, reduce labor intensity of workers, and improve working environment of workers.
[0006] In order to achieve the above purpose, the solution of the utility model is:
[0007] An automated device for punching and inserting frames for polarized lenses, comprising a manipulator, a water-cutting device, a lifting mechanism, an automatic push rod, an automatic clamp, a first inserting frame for inserting lenses to be punched, a second inserting frame for inserting finished lenses, a first conveying mechanism, and a second conveying mechanism;
[0008] The manipulator and the water-cutting device are arranged at the front end of the first conveying mechanism;
[0009] The first inserting frame is placed on the first conveyor belt of the first conveying mechanism, and the first inserting frame is transported by the first conveyor belt of the first conveying mechanism;
[0010] The second conveying mechanism has two second conveying belts arranged one above the other, and the second inserting frame is placed on the second conveying belt of the second conveying mechanism, and the second inserting frame is transported by the second conveying belt of the second conveying mechanism;
[0011] The lifting mechanism is placed at the front end of the second conveyor mechanism, and the lifting mechanism is close to the position of the water cutting device. The lifting platform of the lifting mechanism is driven by the lifting mechanism to rise to the front end of the upper second conveyor belt or to descend to the front end of the lower second conveyor belt;
[0012] The automatic push rod is placed on the front side of the lifting platform, corresponding to the position after the lifting platform rises;
[0013] The automatic fixtures are placed on the left and right sides of the lifting platform corresponding to the position after the lifting platform rises;
[0014] The manipulator, the water cutting device, the lifting mechanism, the automatic push rod, the automatic clamp, the first transmission mechanism and the second transmission mechanism are connected to the controller and are controlled by the controller.
[0015] After adopting the above scheme, the working principle of the utility model is that the first inserting frame carrying the lens to be punched is conveyed to the front end of the first conveying mechanism and close to the water-cutting device by the first conveying mechanism, and the robot performs the sheet-pickup and placement operation, and takes the lens to be punched out from the first inserting frame and places it on the punching die of the water-cutting device. After the water-cutting is completed, the robot performs the sheet-pickup and placement operation again, and takes the finished lens with the water-cutting out from the punching die and inserts it into the second inserting frame. After the second inserting frame is full of lenses, it is conveyed to the next process. During this period, the circulation principle of the second insert frame is that the empty second insert frame is conveyed to the front end of the lifting platform of the lifting mechanism through the second conveyor belt of the lower layer, and then driven by the lifting mechanism to rise to the front end of the upper second conveyor belt together with the lifting platform, and the empty second insert frame is positioned with the help of the automatic clamp, which is convenient for the robot to insert the finished lens with the water outlet cut into the second insert frame. After the second insert frame is full of lenses, the automatic clamp is released, and the second insert frame full of lenses is pushed to the upper second conveyor belt with the help of the automatic push rod.
[0016] The utility model develops and develops automated equipment for punching and inserting frames of polarized lenses, changes the equipment flow and internal structure site design, connects the processes of polarized lens flow transmission, water gate cutting, and frame insertion in series, and combines the design of robotic arm taking and placing lenses to ensure that the lenses on the lens insertion frame are not damaged, accurately place the lenses on the punching die, efficiently complete the taking and placing actions, realize the automation of water gate punching and frame insertion, reduce the lens flow time, improve production efficiency, reduce the labor intensity of workers, and improve the working environment of workers.
[0017] The optimized design of the first conveyor mechanism includes two first conveyor belts arranged horizontally side by side. The two conveyor belts are connected end to end to form a ring and are arranged around a first guide wheel. The two first conveyor belts are driven by a first motor and a first guide wheel. A first sheet inserting frame is fixed to each first conveyor belt. This allows the first sheet inserting frame to enter and exit one at a time, simultaneously placing and removing sheets, thereby improving work efficiency.
[0018] According to the optimized design, the two second conveyor belts are driven by the cooperation between the second motor and the second guide wheel, and the cooperation between the third motor and the third guide wheel respectively.
[0019] In an optimized design, the first and second conveyor mechanisms are arranged side by side, with the first conveyor belt of the first conveyor mechanism lower than the second conveyor belt above it. The manipulator is located to one side of the first conveyor mechanism. This side-by-side arrangement of the first and second conveyor mechanisms results in a compact structure, a small footprint, and convenient loading and unloading of materials, allowing a single person to easily operate the entire process. Furthermore, the height difference between the first and second conveyor belts further facilitates the manipulator's operation.
[0020] The optimized design features a heating element installed on the die cutter mold of the water gate device. This element is connected to a controller and controlled by the controller. This heating element heats the die cavity, changing the existing cold cutting method, reducing lens edge lint during the cutting process and improving the yield rate of subsequent processes.
[0021] In an optimized design, the automatic push rod is an electric push rod, which is composed of a push rod drive motor and a push rod. The output end of the push rod drive motor is connected to the push rod and drives the push rod to extend to achieve the pushing effect. Alternatively, the automatic push rod is a pneumatic push rod, which is composed of a push rod drive cylinder and a push rod. The output end of the push rod drive cylinder is connected to the push rod and drives the push rod to extend to achieve the pushing effect.
[0022] In an optimized design, the automatic clamp is an electric clamp, comprising two opposing clamping plates and a clamp drive motor. The clamping plates are mounted on the output end of the clamp drive motor, and the clamp drive motor drives the two clamping plates to clamp or release. Alternatively, the automatic clamp is a pneumatic clamp, comprising two opposing clamping plates and a clamp drive cylinder. The clamping plates are mounted on the output end of the clamp drive cylinder, and the clamp drive cylinder drives the two clamping plates to clamp or release.
[0023] The optimized design involves grouping two automated devices together; the two watertight devices of the two automated devices are positioned adjacent to each other; the first and second conveyor mechanisms of each automated device are arranged side by side to form a conveyor assembly. The conveyor assemblies of the two automated devices are arranged in a line with the two watertight devices as the center, and the two automated devices share a single manipulator, which is located to one side of the first conveyor mechanism. This further enhances the compactness and ease of operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. For those skilled in the art, other relevant drawings can be obtained based on these drawings without inventive effort.
[0025] Figure 1 It is a three-dimensional structural diagram of the utility model;
[0026] Figure 2 yes Figure 1 A top view of
[0027] Figure 3 yes Figure 1 Front view of
[0028] Figure 4 yes Figure 1 Rear view;
[0029] Figure 5 It is a three-dimensional structural diagram of the lifting mechanism, automatic push rod and automatic clamp;
[0030] Figure 6 yes Figure 5 A partially enlarged top view;
[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of another embodiment of the utility model;
[0032] Figure 8 yes Figure 7 Front view of .
[0033] Label Description
[0034] First conveying mechanism 1, first conveyor belt 11, first guide wheel 12, first motor 13, conveying track 14;
[0035] Second conveying mechanism 2, second conveyor belt 21, second motor 22, second guide wheel 23, third motor 24, third guide wheel 25;
[0036] Lifting mechanism 3, lifting platform 31;
[0037] Automatic push rod 4, push rod driving cylinder 41, push rod 42;
[0038] Automatic clamp 5, clamping plate 51, clamp driving cylinder 52;
[0039] Cutting nozzle device 6;
[0040] First insert frame 7;
[0041] The second insert frame 8;
[0042] Robot 9. DETAILED DESCRIPTION
[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. 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 utility model for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0044] It should be noted that the terms front, back, inside, outside, top, bottom, left, right, first, second, third, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the technical features indicated, unless otherwise clearly and specifically defined.
[0045] like Figures 1 to 6 As shown, the utility model discloses an automated device for punching and inserting frames of polarized lenses, including a manipulator 9, a water cutting device 6, a lifting mechanism 3, an automatic push rod 4, an automatic clamp 5, a first inserting frame 7, a second inserting frame 8, a first conveying mechanism 1 and a second conveying mechanism 2.
[0046] The manipulator 9 and the water-cutting device 6 are placed at the front end of the first conveying mechanism 1. The water-cutting device 6 can be an existing device that can achieve water-cutting of the lens.
[0047] The first inserting frame 7 can be used to insert the lenses to be punched. The first inserting frame 7 is placed on the first conveyor belt 11 of the first conveying mechanism 1. The first conveyor belt 11 of the first conveying mechanism 1 transports the first inserting frame 7 so that the first inserting frame 7 fully loaded with lenses to be punched can be delivered to the front end, making it convenient for the robot 9 to take out the lenses and place them on the water-cutting device 6 for water-cutting operation. When all the lenses to be punched are taken out, the empty first inserting frame 7 can be returned to be loaded with lenses to be punched again and enter the next cycle of operation.
[0048] The second inserting frame 8 can be used to insert finished lenses. The second conveyor mechanism 2 includes two second conveyor belts 21 arranged one above the other. The transmission mechanism of the two second conveyor belts 21 can be as shown in the figure, but is not limited to the illustrated structure. The two second conveyor belts 21 in the figure are driven by the cooperation of a second motor 22 and a second guide wheel 23, and a third motor 24 and a third guide wheel 25, respectively. The second inserting frame 8 is placed on the second conveyor belt 21 of the second conveyor mechanism 2 and transported by the second conveyor belt 21 of the second conveyor mechanism 2.
[0049] The lifting mechanism 3 is used to transport the second insert frame 8 between the upper and lower second conveyor belts 21. The lifting mechanism 3 is positioned at the front end of the second conveyor belt 2, near the watertight device 6. The lifting platform 31 of the lifting mechanism 3 can be driven by the lifting mechanism 3 to rise to the front end of the upper second conveyor belt 21 or lower to the front end of the lower second conveyor belt 21. Thus, when the lifting platform 31 carries the second insert frame 8, it can be transported between the front ends of the two second conveyor belts 21.
[0050] The automatic clamp 5 is placed on the left and right sides of the lifting platform 31 corresponding to the position after the lifting platform 31 rises. When the second insertion frame 31 carried by the lifting platform 31 rises to its position, the second insertion frame 8 on the lifting platform 31 can be clamped and positioned with the help of the automatic clamp 5, so that the robot 9 can insert the finished lens into the second insertion frame 8.
[0051] The automatic push rod 4 is placed on the front side of the lifting platform 31 corresponding to the position after the lifting platform 31 is raised. When the second insertion frame 31 carried by the lifting platform 31 rises to its position and the second insertion frame 31 is fully inserted with lenses, the automatic push rod 4 can be used to push the second insertion frame 8 on the lifting platform 31 onto the upper second conveyor belt 21 to convey the finished lenses out.
[0052] The manipulator 9, water-cutting device 6, lifting mechanism 3, automatic push rod 4, automatic clamp 5, first conveying mechanism 1, and second conveying mechanism 2 are connected to a controller (common technology, not shown in the figure), and the controller controls the coordinated operation of each component. To better control the movement of each component, the controller also includes accessories such as displacement sensors, which are all common controller technologies and are not described in detail here.
[0053] When the utility model actually works, the steps are as follows:
[0054] 1. Fill the first inserting frame 7 with the lenses to be punched and placed on the first conveyor belt 11 of the first conveying mechanism 1. The first inserting frame 7 filled with the lenses to be punched and transferred to the front end of the first conveying mechanism 1 by the first conveying mechanism 1, so that the first inserting frame 7 is close to the water-cutting device 6, so that the subsequent robot 9 can take out the lenses to be cut and place them into the water-cutting device 6 for water-cutting operation.
[0055] Second, the lifting platform 31 is lowered to the front end of the lower second conveyor belt 21 via the lifting mechanism 3. Simultaneously, the empty second lens frame 8 is placed on the lower second conveyor belt 21 and transported via the lower second conveyor belt 21 to the lifting platform 31 of the lifting mechanism 3. The lifting mechanism 3 then drives the lifting platform 31 and the empty second lens frame 8 to the front end of the upper second conveyor belt 21. The empty second lens frame 7 is then positioned by the automatic clamp 5, facilitating subsequent insertion of the finished lens frame 7 from the slit cutting device 6 by the robot 9.
[0056] It should be noted that step one and step two can be performed in no particular order and can also be performed simultaneously.
[0057] 3. Start the manipulator 9 and the water cutting device 6.
[0058] The robot 9 performs the sheet picking and placing operation, takes the lens to be punched out from the first inserting frame 7 and places it on the punching die of the water gate cutting device 6. After the water gate cutting device 6 has punched the water gate, the robot 9 performs the sheet picking and placing operation again, takes the finished lens with the water gate cut out from the punching die and inserts it into the second inserting frame 8.
[0059] 4. After the second inserting frame 8 is filled with lenses, the automatic clamp 5 is released, and the second inserting frame 8 filled with lenses is pushed onto the upper second conveyor belt 21 by the automatic push rod 5. The second inserting frame 8 filled with finished lenses is sent to the next process through the upper second conveyor belt 21.
[0060] The innovation of the present invention is that the processes of polarized lens transfer, nozzle cutting, and frame insertion are connected in series, and the lens pick-up and placement design of the robot 9 is combined to ensure that the lens is not damaged, and the lens is accurately placed on the punching die, and the pick-up and placement action is completed efficiently, thereby realizing the automation of nozzle punching and frame insertion, reducing the lens circulation time, improving production efficiency, reducing the labor intensity of workers, and improving the working environment of workers.
[0061] The optimized design of the present utility model is shown in the figure. The first conveying mechanism 1 comprises two first conveyor belts 11 arranged horizontally side by side. The two conveyor belts 11 are connected end to end to form a ring and are arranged around a first guide wheel 12. The two first conveyor belts 11 are driven by a first motor 13 and the first guide wheel 12. A first sheet frame 7 is fixed to each first conveyor belt 11. To ensure smoother transmission of the first sheet frame 7, a conveyor track 14 can be provided below the first sheet frame 7. In this way, the two first conveyor belts 11 arranged in a ring can realize a working mode in which two first sheet frames 7 are put in and out one by one, and sheets are put in and taken out simultaneously, thereby improving work efficiency.
[0062] In the optimized design of this utility model, the first and second conveyor mechanisms 1 and 2 are arranged side by side, and the first conveyor belt 11 of the first conveyor mechanism 1 can be slightly lower than the upper second conveyor belt 21 of the second conveyor mechanism 2. The manipulator 9 is located to one side of the first conveyor mechanism 1. This makes the equipment structure compact, occupies a small area, and facilitates loading and unloading. The entire process can be easily completed by one person. Moreover, the height difference between the first and second conveyor belts 1 and 2 also makes it easier to operate the manipulator.
[0063] The optimized design of the present invention utilizes existing technology, but also improves it by installing a heating element (not shown) on the die die of the die cutter of the die cutter 2. The heating element is connected to a controller and controlled by the controller. The heating element heats the die cavity, thus changing the existing cold cutting method, reducing the generation of lens edge debris during the cutting process, and improving the yield rate of subsequent processes.
[0064] In the optimized design of the present invention, the automatic push rod 4 is a pneumatic push rod, which is composed of a push rod driving cylinder 41 and a push rod 42. The output end of the push rod driving cylinder 41 is connected to the push rod 42, and the push rod driving cylinder 41 drives the push rod 42 to extend to achieve the pushing effect. Of course, the automatic push rod 4 can also be an electric push rod, which is composed of a push rod driving motor and a push rod. The output end of the push rod driving motor is connected to the push rod and drives the push rod to extend to achieve the pushing effect.
[0065] In the optimized design of the present invention, the automatic clamp 5 is a pneumatic clamp, which is composed of two clamping plates 51 arranged opposite to each other and a clamp driving cylinder 52. The clamping plates 51 are mounted on the output end of the clamp driving cylinder 52, and the clamp driving cylinder 52 drives the two clamping plates 51 to clamp or release. Of course, the automatic clamp 5 can also be an electric clamp, which is composed of two clamping plates arranged opposite to each other and a clamp driving motor. The clamping plates are mounted on the output end of the clamp driving motor, and the clamp driving motor drives the two clamping plates to clamp or release.
[0066] like Figure 7 and Figure 8As shown, the optimized design of the present invention is that the automation equipment is grouped into two; the two water-cutting devices 6 of the two automation equipment are placed adjacent to each other; the first conveying mechanism 1 and the second conveying mechanism 2 of each automation equipment are arranged side by side to form a conveying assembly, and the conveying assemblies of the two automation equipment are arranged in a line with the two water-cutting devices 6 as the center, and the two automation equipment share a robot 9, which is located on one side of the first conveying mechanism 1. In this way, sharing a robot 9 reduces costs, further makes the structure compact, and facilitates operation. Moreover, the first conveying mechanism 1 has two first inserting frames 7, one for input and one for output, which can alternately provide lenses to be punched, and the second conveying mechanism 2 also has multiple second inserting frames 8 that continuously deliver the finished lenses after punching (there are multiple second inserting frames 8 on the upper layer, and only a small number of lenses are inserted in the second inserting frames 8 for illustration). This embodiment can further improve production efficiency.
[0067] The above description is only an example of the implementation of the present invention and does not limit the scope of protection of the present invention. It should be noted that after reading this specification, equivalent changes made by those skilled in the art based on the design ideas of this case will fall within the scope of protection of this case.
Claims
1. An automated device for punching and inserting polarized lenses, characterized by: It includes a manipulator, a water-cutting device, a lifting mechanism, an automatic push rod, an automatic clamp, a first inserting frame, a second inserting frame, a first conveying mechanism and a second conveying mechanism; The manipulator and the water-cutting device are arranged at the front end of the first conveying mechanism; The first inserting frame is placed on the first conveyor belt of the first conveying mechanism, and the first inserting frame is transported by the first conveyor belt of the first conveying mechanism; The second conveying mechanism has two second conveying belts arranged one above the other, and the second inserting frame is placed on the second conveying belt of the second conveying mechanism, and the second inserting frame is transported by the second conveying belt of the second conveying mechanism; The lifting mechanism is placed at the front end of the second conveyor mechanism, and the lifting mechanism is close to the position of the water cutting device. The lifting platform of the lifting mechanism is driven by the lifting mechanism to rise to the front end of the upper second conveyor belt or to descend to the front end of the lower second conveyor belt; The automatic push rod is placed on the front side of the lifting platform, corresponding to the position after the lifting platform rises; The automatic fixtures are placed on the left and right sides of the lifting platform corresponding to the position after the lifting platform rises; The manipulator, the water cutting device, the lifting mechanism, the automatic push rod, the automatic clamp, the first transmission mechanism and the second transmission mechanism are connected to the controller and are controlled by the controller.
2. The automated polarized lens punching and inserting frame device according to claim 1, characterized in that: The first conveying mechanism has two first conveyor belts arranged horizontally side by side. The two conveyor belts are connected end to end to form a ring and are arranged around the first guide wheel. The two first conveyor belts are driven by the first motor and the first guide wheel. A first insert frame is fixed on each first conveyor belt.
3. The automated polarized lens punching and frame inserting equipment according to claim 1, characterized in that: The two second conveyor belts are respectively driven by the cooperation of the second motor and the second guide wheel, and the cooperation of the third motor and the third guide wheel.
4. The automated polarized lens punching and frame inserting equipment according to claim 1, characterized in that: The first conveying mechanism and the second conveying mechanism are arranged side by side, and the first conveying belt of the first conveying mechanism is lower than the upper second conveying belt of the second conveying mechanism, and the robot is located on one side of the first conveying mechanism.
5. The polarized lens punching and frame inserting automated equipment according to claim 1, characterized in that: A heating element is installed on the punching die of the water cutting device, and the heating element is connected to the controller and is controlled by the controller.
6. The automated polarized lens punching and frame inserting equipment according to claim 1, characterized in that: The automatic push rod is an electric push rod, which is composed of a push rod drive motor and a push rod. The output end of the push rod drive motor is connected to the push rod and drives the push rod to extend to achieve a pushing effect.
7. The automated polarized lens punching and frame inserting equipment according to claim 1, characterized in that: The automatic push rod is a pneumatic push rod, which is composed of a push rod driving cylinder and a push rod. The output end of the push rod driving cylinder is connected to the push rod and drives the push rod to extend to achieve a pushing effect.
8. The automated polarized lens punching and frame inserting equipment according to claim 1, characterized in that: The automatic clamp is an electric clamp, which consists of two clamping plates arranged opposite to each other and a clamp driving motor. The clamping plates are installed on the output end of the clamp driving motor, and the clamp driving motor drives the two clamping plates to clamp or release.
9. The polarized lens punching and frame inserting automated equipment according to claim 1, characterized in that: The automatic clamp is a pneumatic clamp, which consists of two clamps arranged opposite to each other and a clamp driving cylinder. The clamps are installed on the output end of the clamp driving cylinder, and the clamp driving cylinder drives the two clamps to clamp or release.
10. The polarized lens punching and frame inserting automated equipment according to claim 1, characterized in that: The automated equipment is grouped in two; the two water-cutting devices of the two automated equipment are placed adjacent to each other; the first conveying mechanism and the second conveying mechanism of each automated equipment are arranged side by side to form a conveying assembly, and the conveying assemblies of the two automated equipment are arranged in a line with the two water-cutting devices as the center, and the two automated equipment share a robot, which is located on one side of the first conveying mechanism.