A switch box quality inspection and packing / palletizing production line

Abstract

This invention relates to the field of switch box manufacturing technology, and more specifically, to a switch box quality inspection and palletizing production line. It includes a discharge system, which includes a quality inspection device comprising a first conveyor line, a first vision inspection system, a second vision inspection system, and stops mounted on the first conveyor line; and a palletizing system, which includes a gripping device located at the discharge end of the discharge system. The gripping device includes a gripper bracket, a first gripper, and a first drive mechanism connected to the gripper bracket and used to drive the first gripper. This invention overcomes the shortcomings of existing technologies where manual quality inspection and palletizing of switch boxes is inefficient and lacks guaranteed accuracy. By automatically inspecting and palletizing switch boxes using the quality inspection device and the palletizing system respectively, it greatly saves manpower and achieves higher efficiency in both quality inspection and palletizing.

Description

Technical Field

[0001] This invention relates to the field of switch box manufacturing technology, and more specifically, to a switch box quality inspection and packing / palletizing production line. Background Technology

[0002] A switch box is a concealed box embedded in the wall. It can be used to install switch panels or to store electrical wires. Wires from different circuits are connected and protected inside the switch box. Most commonly used switch boxes have punched holes on all four sides, which are pre-drilled openings. These openings have removable discs; an electrician can poke these discs out as needed to expose the opening for wires to pass through.

[0003] In the existing technology, after the production of this stamped switch box is completed, it is necessary to manually check whether there are stamped holes on all four sides of each switch box, and whether the number of punches meets the standard, in order to ensure the quality of the switch box. After checking the quality of the switch box, the switch box is packed and stacked, and after sealing the box, it can be stored in the warehouse or shipped out.

[0004] However, in the quality inspection of switch boxes, due to the large production volume, firstly, comprehensive quality inspection is impossible; instead, sampling inspection is used. Secondly, the quality inspection of switch boxes relies on subjective human judgment, which may lead to errors. Both of these situations can result in some substandard products entering the market and causing customer complaints. Furthermore, the palletizing and packing process requires a large number of workers, resulting in high labor intensity and very low efficiency. Summary of the Invention

[0005] In view of the problems of low efficiency and inability to guarantee the accuracy of quality inspection when manually inspecting and palletizing switch boxes in the prior art, the present invention provides a switch box quality inspection and packaging production line, which can perform quality inspection on all switch boxes and automatically palletize and pack them. This not only saves manpower, but also improves the efficiency and accuracy of switch box quality inspection, while also improving palletizing and packing efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0007] A switch box quality inspection and packing / palletizing production line includes:

[0008] The discharge system includes a quality inspection device, which comprises a first conveyor line, a first vision inspection system, a second vision inspection system, and a stop. Both the first and second vision inspection systems include a first vision camera and a second vision camera located on opposite sides of the first conveyor line. The stop is located on one side of the first conveyor line and between the first and second vision inspection systems. The stop is connected to the frame of the first conveyor line and is used to abut against one side of the switch box.

[0009] A palletizing system, the palletizing system including a gripping device located at the discharge end of the discharge system, the gripping device including a gripper bracket, a first gripper and a first drive mechanism connected to the gripper bracket and used to drive the first gripper to move.

[0010] In the above technical solution, the two opposite sides of a single switch box face opposite sides of the first conveyor line and enter the first conveyor line sequentially. When the switch box passes through the first vision inspection system, two sides are inspected. Then, the switch box continues to be conveyed forward until one side abuts against a stop. The part of the switch box that abuts against the stop is temporarily blocked from moving forward, while the other part of the switch box that is not blocked continues to move forward. The switch box thus turns so that the two uninspected sides face opposite sides of the first conveyor line. After turning, the switch box continues to move forward into the inspection range of the second vision inspection system for inspection. At this point, the quality inspection of the four sides of the switch box is completed. After the switch box is conveyed to the discharge end of the discharge system, the first drive mechanism drives the first gripper to move and grab the inspected switch box into the packaging box. The grabbing is repeated multiple times to stack the switch boxes. Finally, the box is sealed manually or automatically and can be shipped out of the factory.

[0011] Preferably, the discharge system further includes an arrangement device, which includes a second conveyor line and a third drive mechanism for driving the second conveyor line to move horizontally in a direction perpendicular to its conveying direction. The inlet end of the second conveyor line is connected to the outlet end of the first conveyor line. At least two first guide rails connected to the frame of the second conveyor line are provided on the same horizontal plane above the conveyor belt of the second conveyor line. The first guide rails all extend along the conveying direction of the second conveyor line. The end of each first guide rail away from the first conveyor line is provided with a first blocking part for abutting against the switch box.

[0012] The gripping device further includes a second gripper and a second drive mechanism connected to the gripper bracket and used to drive the second gripper to move.

[0013] The palletizing system further includes a spacing adjustment device, which includes a support base located between the first gripper and the second gripper, a fourth drive mechanism, fixed strips located on the top surface of the support base and used to place a row of switch boxes, and several sliding strips; the fixed strips are fixedly connected to the support base, and the sliding strips are all slidably connected to the support base along the line connecting the support base and the fixed strips; the fourth drive mechanism is used to drive the sliding strips to slide.

[0014] During implementation, the completed switch boxes enter the second conveyor line in a row from the first conveyor line and move forward along one of the first guide rails. After one of the first guide rails is full of switch boxes, the third drive mechanism drives the second conveyor line to move horizontally in a direction perpendicular to its conveying direction, so that the inlet of the other first guide rail is aligned with the switch box, thereby moving the switch box into the other first guide rail. After all the first guide rails are filled with switch boxes by moving the second conveyor line, the switch boxes are arranged in at least two rows on the second conveyor line. The second drive mechanism then drives the second gripper to simultaneously grab at least two adjacent rows of switch boxes and place them on the fixed plate and sliding plate. Then, the fourth drive mechanism drives the sliding plate to slide, so that all the sliding plate and the fixed plate abut in sequence, thereby adjusting the two adjacent rows of switch boxes to abut each other. Finally, the first gripper grabs at least two adjacent rows of switch boxes together and puts them into the packaging box to form a layer of switch boxes. The above steps are repeated to grab the switch boxes into the packaging box and stack them to complete the stacking of switch boxes. In this solution, the switch boxes are arranged in a certain number of columns and the spacing between adjacent columns is adjusted before the switch boxes are picked up together and stacked into the packaging box. This method is more efficient in stacking than picking up switch boxes one by one or column by column into the packaging box, and it also helps to improve the space utilization of the packaging box.

[0015] Preferably, the fourth driving mechanism includes a parallelogram telescopic mechanism and a telescopic drive assembly connected to the support base and used to drive one of the sliding strips to slide; the fixed strip and several sliding strips are connected sequentially through the parallelogram telescopic mechanism. The fourth driving mechanism composed of the parallelogram telescopic mechanism and the telescopic drive assembly has a relatively simple structure, eliminating the need to drive each sliding strip individually. In implementation, the telescopic drive mechanism only needs to drive one sliding strip to extend or retract the parallelogram telescopic mechanism, thereby driving the remaining sliding strips to slide together. Furthermore, the parallelogram telescopic mechanism allows the spacing between adjacent fixed plates and sliding plates, as well as between two adjacent sliding plates, to be consistent with the spacing between two adjacent rows of switch boxes on the second conveyor line, thus eliminating the need to individually adjust the spacing between adjacent sliding strips.

[0016] The first gripper and the second gripper can be one of the following: a gripper-type gripper, a clamping gripper, or a vacuum suction cup gripper.

[0017] Preferably, both the first gripper and the second gripper are vacuum suction cup grippers. Specifically, the first gripper includes a first connector connected to the first drive mechanism, a first vacuum generator mounted on the first connector, and multiple first suction cup assemblies connected to the first vacuum generator. The first suction cup assemblies are arranged in at least two parallel rows, and adjacent rows of first suction cup assemblies are used to pick up adjacent rows of switch boxes that are abutting each other. The second gripper includes a second connector connected to the second drive mechanism, a second vacuum generator mounted on the second connector, and multiple second suction cup assemblies connected to the second vacuum generator. The second suction cup assemblies are arranged in at least two parallel rows, and the center distance between adjacent rows of second suction cup assemblies is equal to the center distance between adjacent first guide rails. The vacuum generator draws or inflates air into the suction cups of the suction cup assembly, thereby allowing the suction cups to pick up or release the switch boxes. This not only avoids damaging the surface of the switch boxes but also, unlike grippers or clamps, does not occupy too much space inside the packaging box when using suction cups to pick up switch boxes for packaging, thus improving the space utilization of the packaging box.

[0018] Preferably, the discharge system further includes a third conveyor line, the inlet end of which is connected to the outlet end of the second conveyor line. At least two second guide rails are provided on the same horizontal plane above the conveyor belt of the third conveyor line, connected to the frame of the third conveyor line and extending along the conveying direction of the third conveyor line. Each of the second guide rails has a second blocking portion at its end away from the second conveyor line for abutting against the switch box. The spacing between two adjacent second guide rails is the same as the spacing between two adjacent first guide rails. One of the adjacent two second guide rails has a clamping and flipping assembly at its inlet end and a lifting drive mechanism for driving the clamping and flipping assembly to rise and fall. The clamping and flipping assembly is used to clamp the switch box and rotate it vertically by an integer multiple of 180 degrees.

[0019] The gripping device further includes a rotary drive assembly mounted on the gripper bracket, the rotary drive assembly being used to drive the first gripper to rotate horizontally by an integer multiple of 180 degrees; the number of rows of the first suction cup assemblies is even; the number of sliding strips is odd.

[0020] The distance between the suction cups of the two adjacent columns of the first suction cup assembly and the first connector is different. One column of suction cups is used to pick up the bottom outer side of the switch box, and the other column of suction cups is used to pick up the bottom inner side of the switch box. The distance between the suction cups of the two adjacent columns of the second suction cup assembly and the second connector is different. One column of suction cups is used to pick up the bottom outer side of the switch box, and the other column of suction cups is used to pick up the bottom inner side of the switch box.

[0021] During implementation, after the first guide rails of the second conveyor line are filled with switch boxes, the third drive mechanism drives the second conveyor line to move, aligning the inlet of each first guide rail with the inlet of each set of second guide rails. Then, the conveyor belt of the second conveyor line changes direction, moving the switch boxes from the first guide rails to the respective second guide rails. In the second guide rails equipped with clamping and flipping components, when a switch box passes the feed end of the second guide rail, the clamping and flipping component first clamps one switch box, and the lifting drive mechanism drives the clamping and flipping component and the switch box upwards together to the top of the second guide rail. The clamping and flipping component flips the switch box 180 degrees, and then the lifting drive mechanism drives the clamping and flipping component downwards, thus placing the switch box back onto the second guide rail. All switch boxes entering the second guide rail are flipped. The switch boxes on the two adjacent second guide rails are arranged with one row of openings facing upwards and the other row facing downwards. The switch boxes on the spacing adjustment device are also arranged with one row of openings facing upwards and the other row facing downwards. Because the openings of the switch boxes have raised ribs, this avoids the raised ribs of two adjacent rows of switch boxes in the same layer from abutting each other, thereby reducing the floor space occupied by the switch boxes in the same layer and helping to reduce the volume of the required packaging box. After the first gripper grabs such a layer of switch boxes into the packaging box, when grabbing the next layer of switch boxes, the rotation drive component drives the first gripper to rotate horizontally by 180 degrees, and then stacks the switch boxes into the packaging box, so that two adjacent switch boxes in the vertical direction in the packaging box either abut each other at the bottom or at the top, making the switch boxes in the packaging box more stable and less likely to tip over.

[0022] Preferably, the discharge end of the first conveyor line is equipped with a counting sensor and a second blocking cylinder, both connected to the frame of the first conveyor line. The piston rod axis of the second blocking cylinder is perpendicular to the conveying direction of the first conveyor line, and the piston rod of the second blocking cylinder is used to abut against the switch box. The counting sensor senses each switch box passing through the discharge end of the first conveyor line, thereby calculating the number of switch boxes entering the first guide rail from the first conveyor line. When the number of switch boxes passing through the discharge end of the first conveyor line reaches the loading limit of the first guide rail, the second blocking cylinder immediately extends its piston rod to block the switch box from moving forward. Immediately afterwards, the third drive mechanism drives the second conveyor line to move until another first guide rail aligns with the switch box on the first conveyor line. The second blocking cylinder then immediately retracts its piston rod, allowing the switch box to continue moving forward into the other first guide rail. The use of a counting sensor and a second blocking cylinder facilitates control of the number of switch boxes in each row.

[0023] Preferably, a first blocking cylinder is connected to the frame of the first conveyor line. The piston rod of the first blocking cylinder is perpendicular to the conveying direction of the first conveyor line and located between the stop block and the second vision inspection system. The piston rod of the first blocking cylinder is used to abut against the switch box. The piston rod of the first blocking cylinder extends before the switch box collides with the stop block. After the switch box changes direction, it moves to abut against the piston rod of the second blocking cylinder. As it continues to move forward, it will come into contact with and align with the piston rod of the first blocking cylinder, so that the rotation angle of the switch box relative to the conveyor belt is exactly 90 degrees. Then the first blocking cylinder retracts its piston rod. In this way, the two sides of the switch box after the change of direction are directly facing the first vision camera and the second vision camera of the second vision inspection system, which helps to improve image quality and thus improve the accuracy of detection.

[0024] Preferably, a clamping and translational assembly is provided on the first conveyor line between the second vision inspection system and its discharge end; the clamping and translational assembly is connected to the frame of the first conveyor line, and a receiving part is also provided on one side of the frame of the first conveyor line. The clamping and translational assembly is used to clamp the switch box onto the receiving part, thereby removing defective products. By automatically picking out defective products through the clamping and translational assembly, no manual intervention is required for the removal of defective products, further saving manpower.

[0025] It should be noted that the first, second, third, and fourth drive mechanisms mentioned above can all be one or more combinations of drive components such as cylinder drive components, hydraulic cylinder drive components, synchronous belt drive components, lead screw drive components, and rack and pinion drive components in the prior art. The specific combination can be selected according to the action required by the actuator. The rotary drive component mentioned above can be one of a motor, a rotary cylinder, and a rack and pinion drive component. The clamping translation component, clamping transfer component, and clamping flipping component mentioned above can be any combination of components such as cylinder drive components, hydraulic cylinder drive components, synchronous belt drive components, lead screw drive components, rack and pinion drive components, motors, rotary cylinders, and rack and pinion drive components. Since these structures or the structures after combination are all prior art, they will not be described in detail.

[0026] Preferably, the discharge system further includes multiple feeding conveyors and a consolidation conveyor. The feeding ends of each feeding conveyor are connected to an assembly device, and the discharge ends of each feeding conveyor are equipped with clamping and transferring components. The consolidation conveyor has multiple feeding ends, and the conveying direction of each feeding conveyor is perpendicular to the conveying direction of the consolidation conveyor. The discharge ends of each feeding conveyor are connected to one of the feeding ends of the consolidation conveyor, and the discharge end of the consolidation conveyor is connected to the feeding end of the first conveyor. The switch box, after being assembled by the assembly device, enters the feeding end of the feeding conveyor. When it is conveyed from the feeding end to its discharge end, the clamping and transferring components pick up the switch box from the feeding end of the feeding conveyor and transfer it to the consolidation conveyor. Switch boxes from each feeding conveyor enter the consolidation conveyor and are then conveyed from the consolidation conveyor to the first conveyor for quality inspection. Integrating the switch box assembly station, quality inspection station, and packing station onto a single production line not only helps shorten the switch box production cycle but also improves the space utilization rate within the workshop.

[0027] Preferably, the system also includes a sealing conveyor line, which, along its inlet to outlet direction, is sequentially equipped with a case opener, a certificate placement mechanism, a case positioning component for contacting the case, an automatic case sealer, a weighing scale, and a case storage platform located to one side of the weighing scale. The case moves forward from the inlet of the sealing conveyor line. After the case opener opens the case, the certificate placement mechanism places the certificate inside. Then, the case positioning component blocks the case from moving further forward, waiting for the first gripper to grab the switch box and place it inside the case for stacking. After the first gripper fills the case with switch boxes, the case positioning component returns to its initial state, allowing the case to continue moving forward. The automatic case sealer then seals the case. The sealed case continues to move to the weighing scale for weighing. Workers then manually move the case from the weighing scale to the storage platform for temporary storage, thus achieving fully automated, unmanned packaging of the switch boxes.

[0028] The beneficial effects of this invention are:

[0029] 1. The quality inspection device enables automatic quality inspection of the four sides of the switch box, which is more efficient and accurate than manual quality inspection.

[0030] 2. The spacing adjustment device is set to adjust the spacing of the four rows of switch boxes so that the switch boxes form a compact layer. Then, the switch boxes are picked up together and placed into the packaging box for stacking by the palletizing system, realizing automatic palletizing of switch boxes. This not only greatly saves manpower and reduces labor costs, but is also more efficient than manual palletizing.

[0031] 3. The palletizing system picks up the switch boxes after they are stacked inside the packaging box. In the same layer of switch boxes, the openings of two adjacent rows of switch boxes face upwards and downwards, which avoids the protruding ribs of two adjacent rows of switch boxes from abutting each other, thereby reducing the floor space occupied by switch boxes in the same layer and thus reducing the volume of the required packaging box. After stacking, two adjacent switch boxes in the vertical direction inside the packaging box are placed bottom to bottom and top to top. The switch boxes in this stacking method are more stable inside the packaging box and are less likely to tip over or scatter.

[0032] 4. The production line is equipped with a carton opening machine, a certificate placement mechanism, and an automatic carton sealing machine to realize the functions of automatic carton opening, automatic certificate placement, and automatic carton sealing, respectively, realizing unmanned and fully automatic packaging of switch boxes, which can shorten the packaging cycle of switch boxes and improve the factory output efficiency of switch boxes. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of an embodiment 1 of a switch box quality inspection and packing / palletizing production line;

[0034] Figure 2 This is a schematic diagram showing the positional relationship between the quality inspection device and the second conveyor line;

[0035] Figure 3 This is a top view of the quality inspection device;

[0036] Figure 4 This is a schematic diagram of the second conveyor line;

[0037] Figure 5 This is a schematic diagram of the third conveyor line;

[0038] Figure 6 This is a schematic diagram of the gripping device;

[0039] Figure 7 This is a structural diagram of the first grasp point;

[0040] Figure 8 This is a structural diagram of the second gripper;

[0041] Figure 9 This is a schematic diagram of the spacing adjustment device;

[0042] Figure 10 This is a bottom view of the fixed plate and the sliding plate;

[0043] Figure 11 This is a schematic diagram of the structure of Example 3 of a switch box quality inspection and packing / palletizing production line.

[0044] In the attached diagram: 1-Quality inspection device; 101-First conveyor line; 1011-Receiving part; 102-First vision inspection system; 1021-First vision camera; 1022-Second vision camera; 103-Second vision inspection system; 104-Stop; 105-First blocking cylinder; 106-Second blocking cylinder; 107-Fourth blocking cylinder; 108-Third guide rail; 109-90-degree turning conveyor part; 2-Gripping device; 201-Gripper 202-First gripper; 2021-First connector; 2022-First vacuum generator; 2023-First suction cup assembly; 2024-Proximity sensor; 2025-Sensing block; 2026-First alignment plate; 203-First drive mechanism; 204-Second gripper; 2041-Second connector; 2042-Second vacuum generator; 2043-Second suction cup assembly; 2044-Second alignment plate; 205-Second drive mechanism; 206-Rotary drive assembly; 207-Crossbeam; 3-Arranging device; 301-Second conveyor line; 302-Third drive mechanism; 303-First guide rail; 4-Spacing adjustment device; 401-Support base; 402-Fourth drive mechanism; 4021-Parallelogram telescopic mechanism; 4022-Telescopic drive assembly; 403-Fixed slat; 404-Sliding slat; 405-Hydraulic damper; 5-Third conveyor line; 6-Second guide rail; 7-Clamping device 8-Flipping assembly; 9-Lifting drive mechanism; 10-Counting sensor; 11-Second blocking cylinder; 12-Clamping and translation assembly; 13-Assembly device; 14-Feeding conveyor line; 15-Third blocking cylinder; 16-Clamping and transfer assembly; 17-Summary conveyor line; 18-Sealing conveyor line; 19-Carton unpacking machine; 20-Certificate placement mechanism; 21-Packaging box positioning assembly; 22-Automatic carton sealing machine; 23-Weight scale; 24-Packaging box temporary storage platform. Detailed Implementation

[0045] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0046] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0047] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0048] Example 1

[0049] Combination Figures 1 to 10 The switch box quality inspection and packing / palletizing production line shown includes:

[0050] The discharge system includes a quality inspection device 1, such as... Figure 1 , Figure 2 and Figure 3 As shown, the quality inspection device 1 includes a first conveyor line 101, a first vision inspection system 102, a second vision inspection system 103, and a stop 104. The first vision inspection system 102 and the second vision inspection system 103 each include a first vision camera 1021 and a second vision camera 1022 located on both sides of the first conveyor line 101, respectively. The stop 104 is located on one side of the first conveyor line 101 and between the first vision inspection system 102 and the second vision inspection system 103. The stop 104 is connected to the frame of the first conveyor line 101 and is used to abut against one side of the switch box. Specifically, the width of the stop 104 extending into the third guide rail 108 is between one-third and one-half of the width of the switch box, so that the rotation angle of the switch box after colliding with the stop 104 is closer to 90°.

[0051] Furthermore, a third guide rail 108 is provided above the conveyor belt of the first conveyor line 101 and connected to the frame of the first conveyor line 101. A section of the third guide rail 108 is provided for the switch box to turn, and a stop block 104 is located within this space. The width of the third guide rail 108 outside this space is the same as the width of the switch box. Moving the switch box forward along the third guide rail 108 prevents the switch box from swaying or shifting during transport.

[0052] Furthermore, a first blocking cylinder 105 is connected to the frame of the first conveyor line 101. Its piston rod is perpendicular to the conveying direction of the first conveyor line 101 and located between the stop block 104 and the second vision inspection system 103. The piston rod of the first blocking cylinder 105 extends before the switch box collides with the stop block 104. After the switch box collides with the stop block 104 and changes direction, it moves to abut against the piston rod of the first blocking cylinder 105. As it continues to move forward, it comes into contact with and aligns with the piston rod of the first blocking cylinder 105, thus ensuring that the rotation angle of the switch box relative to the conveyor belt is exactly 90 degrees. Then, the first blocking cylinder 105 retracts its piston rod. In this way, the two sides of the redirected switch box are directly facing the first vision camera 1021 and the second vision camera 1022 of the second vision inspection system 103, which helps improve image quality and thus improves the accuracy of detection.

[0053] Furthermore, two clamping and translational assemblies 11 are provided on the first conveyor line 101 between the second vision inspection system 103 and its discharge end. The clamping and translational assemblies 11 are connected to the frame of the first conveyor line 101. Two receiving parts 1011 are also provided on one side of the frame of the first conveyor line 101. One clamping and translational assembly 11 is used to clamp the defective switch box onto one of the receiving parts 1011, thereby removing the defective product. The clamping and translational assembly 11 has the same structure as the clamping and translational assembly in the prior art, and will not be described further here.

[0054] Furthermore, the discharge system also includes an arrangement device 3, see [reference] Figure 4 The arrangement device 3 includes a second conveyor line 301 and a third drive mechanism 302 for driving the second conveyor line 301 to move horizontally in a direction perpendicular to the conveying direction of the second conveyor line 301. The feed end of the second conveyor line 301 is connected to the discharge end of the first conveyor line 101. Two first guide rails 303 are provided on the same horizontal plane above the conveyor belt of the second conveyor line 301 and are connected to the frame of the second conveyor belt. The width of each first guide rail 303 is equal to the width of the switch box and extends along the conveying direction of the second conveyor line 301. The end of each first guide rail 303 away from the first conveyor line 101 is provided with a first blocking part for abutting against the switch box. The first blocking part blocks the switch box to prevent it from moving forward and detaching from the second conveyor line 301.

[0055] Furthermore, the discharge end of the first conveyor line 101 is equipped with a counting sensor 9 and a second blocking cylinder 106, which are respectively connected to the frame of the first conveyor line 101. The piston rod axis of the second blocking cylinder 106 is perpendicular to the conveying direction of the first conveyor line 101, and the piston rod of the second blocking cylinder 106 is used to abut against the switch box. The counting sensor 9 senses each switch box passing through the discharge end of the first conveyor line 101, thereby calculating the number of switch boxes entering the first guide rail 303 from the first conveyor line 101; while the second blocking cylinder 106 can extend its piston rod to prevent the switch box from continuing to move forward from the discharge end of the first conveyor line 101.

[0056] Furthermore, the discharge system also includes a third conveyor line 5, such as... Figure 5 As shown, the feed end of the third conveyor line 5 is connected to the discharge end of the second conveyor line 301. Specifically, the feed end and discharge end of the second conveyor line 301 are the same end. When conveying the switch box, the feed end and discharge end can be made to be the same end by changing the conveying direction of the second conveyor line 301, which helps to reduce the space occupied by the production line. On the same horizontal plane above the conveyor belt of the third conveyor line 5, there are two second guide rails 6 connected to the frame of the third conveyor line 5 and extending along the conveying direction of the third conveyor line 5. The end of the second guide rail 6 away from the second conveyor line 301 is provided with a second blocking part for abutting against the switch box. The second blocking part blocks the switch box to prevent the switch box from moving away from the second guide rail 6. The width of the second guide rail 6 is the same as the width of the first guide rail 303, and the distance between the two second guide rails 6 is the same as the distance between the two first guide rails 303. Furthermore, the first conveyor line 101 in principle has a second guide rail 6 equipped with a clamping and flipping assembly 7 and a lifting drive mechanism 8 for driving the clamping and flipping assembly 7 to move up and down. The clamping and flipping assembly 7 is used to clamp the switch box and rotate it vertically by 180 degrees. It is understood that there is a certain gap between the two second guide rails 6 to provide sufficient space for installing the clamping and flipping assembly 7 and for its movement. The structure of the clamping and flipping assembly 7 and the lifting drive mechanism 8 are the same as those in the prior art, and therefore will not be described in detail.

[0057] Further, see Figure 1 , Figure 6 , Figure 7 and Figure 8 The production line also includes a palletizing system, which includes a gripping device 2 located at the discharge end of the discharge system, that is, at the discharge end of the third conveyor line 5. The gripping device 2 includes a gripper bracket 201 with a crossbeam 207, a first gripper 202, a second gripper 204, and a first drive mechanism 203, a rotary drive assembly 206, and a second drive mechanism 205 respectively connected to the crossbeam 207 of the gripper bracket 201.

[0058] Specifically, the first drive mechanism 203 includes a gear and rack transmission assembly mounted on the crossbeam 207 of the gripper bracket 201 for driving the first gripper 202 to move horizontally; the first drive mechanism 203 also includes a lifting drive assembly for driving the first gripper 202 to lift; the rotary drive assembly 206 is a rotary cylinder, the cylinder body of which is connected to the gripper bracket 201 via the lifting drive assembly, and its rotation shaft is connected to the first gripper 202 for driving the first brush 202 to rotate; the first drive mechanism 203 and the rotary drive assembly 206 drive the first gripper 202 to translate, lift, and rotate along the crossbeam 207 of the gripper bracket 201; the structure and function of the second drive mechanism 205 are the same as those of the first drive mechanism 203, and therefore will not be described further.

[0059] Specifically, the first gripper 202 includes a first connector 2021 connected to the first drive mechanism 203, a first alignment plate 2026 slidably connected to the first connector 2021 in the vertical direction, a first vacuum generator 2022 all disposed on the first connector 2021, and a plurality of first suction cup assemblies 2023. The first suction cup assemblies 2023 are connected to the first vacuum generator 2022 through air pipes (not shown in the figure). The first suction cup assemblies 2023 are arranged in four parallel columns. The center distance between two adjacent columns of first suction cup assemblies 2023 is equal to the distance between two switch boxes that abut against each other. The first gripper 202 picks up the four columns of switch boxes that abut against each other through the four columns of first suction cup assemblies 2023. When the four columns of switch boxes are picked up, they can abut against the first alignment plate 2026, thereby forming a neat layer on the same plane. The second gripper 204 includes a second connector 2041 connected to the second drive mechanism 205, two second alignment plates 2044 slidably connected to the second connector 2041 along the vertical direction, a second vacuum generator 2042 mounted on the second connector 2041, and a plurality of second suction cup assemblies 2043. The second suction cup assemblies 2043 are also connected to the second vacuum generator 2042 via air pipes (not shown in the figure). The second suction cup assemblies 2043 are arranged in two parallel rows, with the center distance between the two rows of second suction cup assemblies 2043 being the same as the center distance between the two second guide rails 6. The second gripper 204 is used to simultaneously grip the switch boxes on the two second guide rails 6. When the two rows of switch boxes are gripped, they can respectively abut against one of the second alignment plates 2044, thereby aligning them on the same plane.

[0060] Furthermore, the top of the first connector 2021 is provided with two proximity sensors 2024 spaced apart along the vertical direction. The first alignment plate 2026 is provided with a sensing block 2025 located above the first connector 2021. The sensing block 2025 can move with the up and down movement of the first alignment plate 2026. The two proximity sensors 2024 are used to detect the sensing block 2025. When the first suction cup assembly 2023 picks up the switch box, the first alignment plate 2026 and the sensing block 2025 move up together into the detection range of the upper proximity sensor 2024, thereby determining that the first gripper 202 has picked up the switch box. When the first suction cup assembly 2023 lowers the switch box, the first alignment plate 2026 and the sensing block 2025 move down together into the detection range of the lower proximity sensor 2024, thereby determining that the first gripper 202 has lowered the switch box and can proceed to the next round of gripping. The top of the second connector 2041 is also provided with two proximity sensors 2024 that are spaced apart along the vertical direction, and a sensing block 2025 is also provided on one of the second alignment plates 2044. Its function and principle are the same as those described above, so they will not be repeated here.

[0061] Specifically, in the first gripper 202, the suction cups of the two rows of first suction cup assemblies 2023 are spaced differently from the first connector 2021, with one row of suction cups used to pick up the bottom outer side of the switch box and the other row of suction cups used to pick up the bottom inner side of the switch box; in the second gripper 204, the suction cups of the two rows of second suction cup assemblies 2043 are spaced differently from the second connector 2041, with one row of suction cups used to pick up the bottom outer side of the switch box and the other row of suction cups used to pick up the bottom inner side of the switch box.

[0062] Further, see Figure 1 , Figure 6 , Figure 9 and Figure 10The palletizing system also includes a spacing adjustment device 4, which includes a support base 401 located below the crossbeam 207 of the gripper bracket 201 and between the first gripper 202 and the second gripper 204, a fourth drive mechanism 402, fixing strips 403 all located on the top surface of the support base 401 and used to place a row of switch boxes, and three sliding strips 404; the fixing strips 403 are fixedly connected to the support base 401, and the top of the fixing strips 403 is provided with five slots for engaging with the bottom of the switch boxes to prevent opening. The switch box falls off the fixed plate 403, and one fixed plate 403 can hold 5 switch boxes; the sliding plate 404 is slidably connected to the support base 401 along the line connecting it and the fixed plate 403. The top of the sliding plate 404 near the fixed plate 403 and away from the fixed plate 403 is provided with five protrusions for engaging with the inner cavity of the switch box. The top of the sliding plate 404 between the two sliding plates 404 is provided with five slots; the fourth drive mechanism 402 is used to drive each sliding plate 404 to slide. The second gripper 204 picks up two rows of switch boxes with a certain distance between them and places them on the fixed plate 403 and the sliding plate 404. After picking them up twice to fill the fixed plate 403 and each sliding plate 404 with switch boxes, the fourth drive mechanism 402 drives the sliding plate 404 to slide until it abuts against the fixed plate 403 in sequence, so that each row of switch boxes abuts against the fixed plate 403 in sequence. Then the first gripper 202 picks up the four rows of switch boxes that abut against the spacing adjustment device 4 in sequence and puts them into the packaging box.

[0063] Furthermore, a hydraulic damper 405 is provided at the bottom of a sliding strip 404 near the fixed strip 403. The piston rod axis of the hydraulic damper 405 is in the sliding direction of the sliding strip 404, and the piston rod of the hydraulic damper 405 is used to abut against the fixed strip 403. The piston rod of the hydraulic damper 405 extends before the sliding strip 404 abuts against the fixed strip 403. When the sliding strip 404 slides to the point where the piston rod of the hydraulic damper 405 abuts against the fixed strip 403, if the abutting force exceeds the set value of the hydraulic damper 405, the piston rod of the hydraulic damper 405 slowly retracts, thereby reducing the sliding speed of the sliding strip 404 and preventing the switch box from falling off the sliding strip 404 due to excessive impact force at the moment of abutment between the sliding strip 404 and the fixed strip 403.

[0064] Specifically, the fourth drive mechanism 402 includes a parallelogram telescopic assembly 4021 and a telescopic drive assembly 4022 connected to the support base 401 and used to drive one of the sliding strips 404 to slide. The fixed strip 403 and the three sliding strips 404 are connected in sequence through the parallelogram telescopic assembly 4021. The telescopic drive assembly 4022 is a cylinder, the cylinder body of which is fixedly connected to the support base 401. The axis of its piston rod is in the sliding direction of the sliding strip 404, and the end of its piston rod is connected to a sliding strip 404 away from the fixed strip 403. In practice, the extension and retraction of the piston rod of the telescopic drive assembly 4022 can drive one of the sliding strips 404 to slide, and drive the remaining sliding strips 404 to slide together through the parallelogram telescopic assembly 4021, so that each sliding strip 404 does not need to be driven to slide individually; at the same time, the distance between the fixed strip 403 and the adjacent sliding strip 404, as well as the distance between two adjacent sliding strips 404, can be kept consistent, so that the distance between the sliding strip 404 and the fixed strip 403, as well as the distance between two adjacent sliding strips 404, does not need to be adjusted individually.

[0065] Furthermore, the top of the support base 401 is provided with two proximity switches (not shown in the figure). One proximity switch is located near the fixed plate 403. When the sliding plate 404 near the fixed plate 403 slides to abut against the fixed plate 403, the proximity switch can detect the sliding plate 404, thereby determining that the spacing of the switch box has been adjusted and the first gripper 202 can grasp the switch box. The other proximity switch is located on the side away from the fixed plate 403. When the sliding plate 404 away from the fixed plate 403 resets, that is, slides to the side of the support base 401 away from the fixed plate 403, the proximity switch can detect the sliding plate 404, thereby determining that the second gripper 204 can grasp the switch box.

[0066] Combination Figures 1 to 10 The working principle or workflow of this embodiment is as follows:

[0067] 1. Quality Inspection Stage: First, each switch box is positioned so that its two opposite sides face the two sides of the first conveyor line 101 and enter the first conveyor line 101 from the feed end. When the switch box passes the first vision camera 1021 and the second vision camera 1022 of the first vision inspection system 102, the first vision camera 1021 and the second vision camera 1022 respectively capture images of the two opposite sides of the switch box. After processing and analyzing the images, it is determined whether the quality and quantity of the punching marks on these two sides meet the standards. After the switch box passes the inspection of the first vision inspection system 102, it continues to be conveyed forward until it collides with the stop block 104 and rotates horizontally by nearly 90° relative to the first conveyor line 101, and continues to move forward. At this time, the piston rod of the first blocking cylinder 105 extends. When the switch box moves to abut against the piston rod of the first blocking cylinder 105, the surface of the switch box that abuts against the piston rod of the first blocking cylinder 105 is blocked by the first blocking cylinder 105. The switch box is adjusted to align with the piston rod of the first blocking cylinder 105, so that the rotation angle of the switch box relative to the first conveyor line 101 reaches 90°. This way, the other two undetected sides of the switch box are directly facing the first vision camera 1021 and the second vision camera 1022 of the second vision inspection system 103. Then, the first blocking cylinder 105 retracts its piston rod, and the switch box continues to be conveyed forward and passes through the second vision inspection system 103 for the detection of the other two undetected sides, thus completing the detection of all four sides. During the process, if the number and quality of the punch marks on any side of the switch box do not meet the standard, the clamping and translation component 11 will be activated when the switch box passes through the discharge end of the first conveyor line 101, thereby clamping the unqualified switch box and moving it to the receiving part 1011. When the punch marks on each side of the switch box meet the standard, the clamping and translation component 11 will not be activated, and the switch box will enter the feed end of the second conveyor line 301 from the discharge end of the first conveyor line 101.

[0068] 2. Arrangement Stage: The third drive mechanism 302 drives the second conveyor line 301 to translate, aligning the feed end of one of the first guide rails 303 with the third guide rail 108 on the first conveyor line 101. Switch boxes move one by one from the discharge end of the first conveyor line 101 into the first guide rail 303. When the counting sensor 9 detects that five switch boxes have passed, the second blocking cylinder 106 immediately extends its piston rod to prevent the switch boxes on the first conveyor line 101 from moving forward further. Then, the third drive mechanism 302 drives the second conveyor line 301 to translate again, aligning the feed end of one of the first guide rails 303 with the third guide rail 108 on the first conveyor line 101. The guide rail 303 is aligned with the third guide rail 108 on the first conveyor line 101. The second blocking cylinder 106 retracts its piston rod to allow the switch box on the first conveyor line 101 to continue moving forward. Similarly, when the counting sensor 9 detects that five more switch boxes have passed, the second blocking cylinder 106 extends its piston rod to prevent the switch box from moving forward. At this time, each of the two first guide rails 303 is loaded with five switch boxes. Then, the third drive mechanism 302 drives the second conveyor line 301 to move horizontally until the discharge end of the two first guide rails 303 is aligned with the feed end of the two second guide rails 6.

[0069] 3. Flipping Stage: The conveyor belt of the second conveyor line 301 reverses, causing the switch boxes in the two first guide rails 303 to move into the two second guide rails 6 on the third conveyor belt respectively; the clamping and flipping component 7 on one of the second guide rails 6 clamps the passing individual switch boxes, and under the drive of the lifting drive mechanism 8, the clamping switch box is moved up to above the second guide rail 6, and the switch box is flipped vertically by 180°. The lifting drive mechanism 8 then drives the clamping and flipping component 7 to move down, and puts the switch box back into the second guide rail 6 to continue moving forward; the above steps are repeated to flip all five switch boxes entering the second guide rail 6 vertically by 180°, so that in the two second guide rails 6, the opening of one row of switch boxes faces upward and the opening of the other row faces downward.

[0070] 4. Spacing Adjustment Stage: Driven by the first drive mechanism 203, the second gripper 204 moves above the two second guide rails 6 until the suction cups of the second suction cup assembly 2043 abut against the switch box. At this time, one row of second suction cup assemblies 2043 abuts against the bottom surface of the inner cavity of the switch box on one of the second guide rails 6, and the other row of second suction cup assemblies 2043 abuts against the bottom surface of the outer surface of the switch box on the other second guide rail 6. The second vacuum generator 2042 then evacuates the second suction cup assembly 2043, thereby lifting the switch box. The two rows of switch boxes are respectively attracted to abut against the second alignment plate 2044 to align on the same horizontal plane. Then the switch box is attracted to the fixed plate 403 of the spacing adjustment device 4 and a sliding plate 404 adjacent to the fixed plate 403. The second vacuum generator 2042 then inflates the second suction cup assembly 2043, thereby allowing the second gripper 204 to lower the switch box. After the second gripper 204 grabs a switch box once, five more switch boxes enter each of the two second guide rails 6. The second gripper 204 then grabs the switch boxes on the two second guide rails 6 and places them onto the spacing adjustment device 4, so that the fixed strip 403 and the three sliding strips 404 are filled with switch boxes. Then, the telescopic drive assembly 4022 of the fourth drive mechanism 402 drives a sliding strip 404 away from the fixed strip 403 to slide towards the fixed strip 403. At this time, the piston rods of the two hydraulic buffers 405 extend. Under the restriction of the parallelogram telescopic assembly 4021, the three sliding strips 404 slide simultaneously until the piston rod of the hydraulic buffer 405 abuts against the fixed strip 403. After the hydraulic buffer 405 is subjected to a certain amount of impact force, it slowly retracts its piston rod, so that the sliding strip 404 slowly slides until it abuts against the fixed strip 403. This completes the spacing adjustment of the four rows of switch boxes.

[0071] 5. Stacking stage: The first gripper 202 simultaneously grabs the four rows of mutually abutting switch boxes on the spacing adjustment device 4 and places them into the packaging box to form a layer. When the first gripper 202 is on the next layer of switch boxes, the rotation drive assembly 206 drives the first connector 2021 to rotate, thereby rotating the layer of switch boxes grabbed by the first gripper 202 by 180°. Then, the layer of switch boxes that have been rotated 180° is stacked on top of the previous layer of switch boxes in the packaging box. In this way, in the vertically adjacent layers of switch boxes in the packaging box, the two switch boxes that abut each other in the vertical direction are either abutting each other at the bottom or at the top, which can make the switch boxes more stable and prevent the switch boxes in the packaging box from tipping over or scattering during the factory transportation process. In addition, because the top edge of the switch box opening has raised ribs, in this arrangement, in two adjacent rows of switch boxes on the same horizontal plane, one row of switch boxes has its opening facing upwards and the other row has its opening facing downwards. This avoids the raised ribs between adjacent rows of switch boxes abutting each other, thus reducing the space occupied by switch boxes in the same layer. This results in a smaller packaging box volume, which helps save on packaging material costs. It is understood that the process and principle of the first gripper 202 gripping the switch box are the same as those of the second gripper 204 gripping the switch box, and therefore will not be described again.

[0072] The beneficial effects of this embodiment are as follows: The quality inspection device enables automatic quality inspection of the four sides of the switch box, which is more efficient and accurate than manual inspection. A spacing adjustment device adjusts the spacing of the four rows of switch boxes, forming a compact layer. The switch boxes are then automatically stacked in the packaging box using a palletizing system, significantly saving manpower and reducing labor costs. This is also more efficient than manual palletizing. After stacking, adjacent rows of switch boxes in the same layer have their openings facing upwards and downwards, preventing the ribs from abutting each other and reducing the floor space occupied by the same layer, thus reducing the required packaging box volume. After stacking, adjacent switch boxes in the vertical direction are stacked bottom to bottom and top to top, making the switch boxes more stable and less prone to tipping over or scattering within the packaging box.

[0073] Example 2

[0074] This embodiment is based on embodiment 1, combined with Figure 1 , Figure 2 , Figure 3 and Figure 11As shown, the discharge system also includes five feeding conveyor lines 13 and one consolidation conveyor line 14. Each feeding conveyor line 13 has an assembly device 12 connected to its inlet end. The consolidation conveyor line 14 has multiple inlet ends. The conveying direction of each feeding conveyor line 13 is perpendicular to the conveying direction of the consolidation conveyor line 14, and the discharge ends of each feeding conveyor line 13 are connected to the inlet ends of the consolidation conveyor line 14. Each discharge end of the consolidation conveyor line 14 is connected to one of the inlet ends of the first conveyor line 101. Specifically, each feeding conveyor line 13 has two third blocking cylinders 1301 and a clamping and transferring assembly 1302 at its discharge end. The distance between the piston rods of the two third blocking cylinders 1301 when extended is the same as the width of the switch box, and the axis of the piston rods of the third blocking cylinders 1301 is perpendicular to the conveying direction of the feeding conveyor line 13. In practice, the third blocking cylinder 1301 on the feeding conveyor belt, which is closer to the converging conveyor belt, first extends its piston rod. After being assembled by the assembly device 12, the switch box is conveyed from the feed end of the feeding conveyor line 13 to its discharge end until it abuts against the piston rod of the third blocking cylinder 1301. Then, the third blocking cylinder 1301 away from the converging conveyor line 14 extends its piston rod to prevent the switch box behind from moving forward. The third blocking cylinder 1301 closer to the converging conveyor line 14 then retracts its piston rod. The clamping and transfer assembly 1302 then clamps the switch box located between the two third blocking cylinders 1301 onto the converging conveyor line 14, so that each switch box enters the converging conveyor line 14 intermittently and orderly, avoiding congestion caused by too many switch boxes on the converging conveyor line 14. After the switch boxes from each feeding conveyor line 13 enter the converging conveyor line 14, they are then sequentially conveyed from the converging conveyor line 14 to the first conveyor line 101 for quality inspection. Integrating the switch box assembly station, quality inspection station, and packing station onto a single production line enables automated collection of switch boxes. This not only shortens the production cycle of switch boxes but also improves the space utilization rate within the workshop.

[0075] Furthermore, at the feed end of the first conveyor line 101, two fourth blocking cylinders 107 connected to the frame of the first conveyor line 101 are provided. The piston rod axis of the fourth blocking cylinder 107 is perpendicular to the conveying direction of the first conveyor line 101, and the distance between the piston rods of the two fourth blocking cylinders 107 when extended is the same as the width of the switch box. In implementation, the fourth blocking cylinder 107 closer to the first vision inspection system 102 extends its piston rod first. After the switch box is conveyed to abut against its piston rod, the other fourth blocking cylinder 107 extends its piston rod to prevent the subsequent switch box from continuing to be conveyed forward. This ensures that there is a certain distance between the switch boxes on the first conveyor line 101, preventing multiple switch boxes from being simultaneously detected by the detection range of the first vision inspection system 102 or the second vision inspection system 103, which would affect the detection accuracy.

[0076] Furthermore, a 90-degree turning conveyor section 109 is provided between the first vision inspection system 102 and the second vision inspection system 103 of the first conveyor line 101. The 90-degree turning conveyor section 109 can be a knife-edge belt conveyor line in the prior art. The 90-degree turning conveyor section 109 helps to shorten the length of the entire conveyor line in the workshop, thereby saving space in the workshop.

[0077] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 1.

[0078] Example 3

[0079] This embodiment is based on embodiment 1 or embodiment 2, such as Figure 1 and Figure 11 As shown, the system also includes a sealing conveyor line 15. Along its inlet to outlet direction, the sealing conveyor line 15 is sequentially equipped with a case opener 16, a certificate placement mechanism 17, a case positioning component 18 for contacting the case, an automatic case sealer 19, a weighing scale 20, and a case storage platform 21. The case moves forward from the inlet of the sealing conveyor line 15. After the case opener 16 opens the case, the certificate placement mechanism 17 places the certificate inside. Then, the case positioning component 18 stops the case from moving forward, waiting for the gripping device 2 to grab the switch box and stack it inside the case. After the first gripper 202 fills the case with switch boxes, the case positioning component 18 returns to its initial state, allowing the case to continue moving forward. Then, the automatic case sealer 19 seals the case. The sealed case then moves forward to the weighing scale 20 for weighing. Finally, the case is manually moved to the case storage platform 21 for temporary storage. This enables fully automated, unmanned packaging of switch boxes, making the production of switch boxes more orderly and efficient.

[0080] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 2.

[0081] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A switch box quality inspection and packing / palletizing production line, characterized in that, include: The discharge system includes a quality inspection device (1), which includes a first conveyor line (101), a first vision inspection system (102), a second vision inspection system (103), and a stop (104). The first vision inspection system (102) and the second vision inspection system (103) each include a first vision camera (1021) and a second vision camera (1022) located on both sides of the first conveyor line (101). The stop (104) is located on one side of the first conveyor line (101) and between the first vision inspection system (102) and the second vision inspection system (103). The stop (104) is connected to the frame of the first conveyor line (101) and is used to abut against one side of the switch box. The palletizing system includes a gripping device (2) located at the discharge end of the discharge system. The gripping device (2) includes a gripper bracket (201), a first gripper (202), and a first drive mechanism (203) connected to the gripper bracket (201) and used to drive the first gripper (202) to move. The discharge system further includes an arrangement device (3), which includes a second conveyor line (301) and a third drive mechanism (302) for driving the second conveyor line (301) to move horizontally in a direction perpendicular to its conveying direction. The feed end of the second conveyor line (301) is connected to the discharge end of the first conveyor line (101). At least two first guide rails (303) connected to the frame of the second conveyor line (301) are provided on the same horizontal plane above the conveyor belt of the second conveyor line (301). The first guide rails (303) all extend along the conveying direction of the second conveyor line (301). The end of each first guide rail (303) away from the first conveyor line (101) is provided with a first blocking part for abutting against the switch box. The gripping device (2) further includes a second gripper (204) and a second drive mechanism (205) connected to the gripper bracket (201) and used to drive the second gripper (204) to move. The palletizing system further includes a spacing adjustment device (4), which includes a support base (401) located between the first gripper (202) and the second gripper (204), a fourth drive mechanism (402), a fixed strip (403) located on the top surface of the support base (401) and used to place a row of switch boxes, and a plurality of sliding strips (404); the fixed strips (403) are fixedly connected to the support base (401), and the sliding strips (404) are all slidably connected to the support base (401) along the line connecting the sliding strips (404) and the fixed strips (403); the fourth drive mechanism (402) is used to drive the sliding strips (404) to slide. The first gripper (202) includes a first connector (2021) connected to the first drive mechanism (203), a first vacuum generator (2022) disposed on the first connector (2021), and a plurality of first suction cup assemblies (2023) connected to the first vacuum generator (2022). The first suction cup assemblies (2023) are arranged in at least two parallel columns, and two adjacent columns of the first suction cup assemblies (2023) are used to pick up the switch boxes that abut against each other in the two adjacent columns. The second gripper (204) includes a second connector (2041) connected to the second drive mechanism (205), a second vacuum generator (2042) disposed on the second connector (2041), and a plurality of second suction cup assemblies (2043) connected to the second vacuum generator (2042). The second suction cup assemblies (2043) are arranged in at least two parallel columns, and the center distance between two adjacent columns of the second suction cup assemblies (2043) is equal to the center distance between two adjacent first guide rails (303).

2. The switch box quality inspection and packing / palletizing production line according to claim 1, characterized in that, The fourth drive mechanism (402) includes a parallelogram telescopic assembly (4021) and a telescopic drive assembly (4022) connected to the support base (401) and used to drive one of the sliding strips (404) to slide; the fixed strip (403) and several of the sliding strips (404) are connected in sequence through the parallelogram telescopic assembly (4021).

3. The switch box quality inspection and packing / palletizing production line according to claim 1, characterized in that, The discharge system also includes a third conveyor line (5), the feed end of the third conveyor line (5) is connected to the discharge end of the second conveyor line (301), and at least two second guide rails (6) are provided on the same horizontal plane above the conveyor belt of the third conveyor line (5) and are connected to the frame of the third conveyor line (5) and extend along the conveying direction of the third conveyor line (5). The end of the second guide rail (6) away from the second conveyor line (301) is provided with a second blocking part for abutting against the switch box. The spacing between two adjacent second guide rails (6) is the same as the spacing between two adjacent first guide rails (303). One of the two adjacent second guide rails (6) is provided with a clamping and flipping assembly (7) and a lifting drive mechanism (8) for driving the clamping and flipping assembly (7) to rise and fall. The clamping and flipping assembly (7) is used to clamp the switch box and rotate it vertically by an integer multiple of 180 degrees. The gripping device (2) further includes a rotary drive assembly (206) disposed on the gripper bracket (201), the rotary drive assembly (206) being used to drive the first connector (2021) to rotate horizontally by an integer multiple of 180 degrees; the number of columns of the first suction cup assemblies (2023) is even; the number of sliding strips (404) is odd. The distance between the suction cups of two adjacent columns of the first suction cup assembly (2023) and the first connector (2021) is different. One column of suction cups is used to pick up the bottom outer side of the switch box, and the other column of suction cups is used to pick up the bottom inner side of the switch box. The distance between the suction cups of two adjacent columns of the second suction cup assembly (2043) and the second connector (2041) is different. One column of suction cups is used to pick up the bottom outer side of the switch box, and the other column of suction cups is used to pick up the bottom inner side of the switch box.

4. The switch box quality inspection and packing / palletizing production line according to claim 1, characterized in that, The discharge end of the first conveyor line (101) is provided with a counting sensor (9) and a second blocking cylinder (106) respectively connected to the frame of the first conveyor line (101). The piston rod axis of the second blocking cylinder (106) is perpendicular to the conveying direction of the first conveyor line (101), and the piston rod of the second blocking cylinder (106) is used to abut against the switch box.

5. A switch box quality inspection and packing / palletizing production line according to claim 1, characterized in that, A first blocking cylinder (105) is connected to the frame of the first conveyor line (101). The piston rod of the first blocking cylinder (105) is perpendicular to the conveying direction of the first conveyor line (101) and is located between the stop block (104) and the second vision inspection system (103). The piston rod of the first blocking cylinder (105) is used to abut against the switch box.

6. The switch box quality inspection and packing / palletizing production line according to claim 1, characterized in that, A clamping and translation component (11) is provided on the first conveyor line (101) between the second vision inspection system (103) and its discharge end; a receiving part (1011) is also provided on one side of the frame of the first conveyor line (101), and the clamping and translation component (11) is used to clamp the switch box onto the receiving part (1011).

7. The switch box quality inspection and packing / palletizing assembly line according to claim 1, characterized in that, The discharge system also includes multiple feeding conveyor lines (13) and a collection conveyor line (14). The feeding end of each feeding conveyor line (13) is connected to an assembly device (12), and the discharge end of each feeding conveyor line (13) is provided with a clamping and transfer assembly (1302). The collection conveyor line (14) is provided with multiple feeding ends. The conveying direction of each feeding conveyor line (13) is perpendicular to the conveying direction of the collection conveyor line (14), and the discharge end of each feeding conveyor line (13) corresponds to one feeding end of the collection conveyor line (14). The discharge end of the collection conveyor line (14) is connected to the feeding end of the first conveyor line (101).

8. A switch box quality inspection and packing / palletizing production line according to any one of claims 1 to 7, characterized in that, It also includes a carton sealing conveyor line (15), which is provided in sequence along its feed end to discharge end with a carton opener (16), a certificate placement mechanism (17), a carton positioning component (18) for contacting the carton, an automatic carton sealer (19), a weighing scale (20), and a carton temporary storage platform (21) located on one side of the weighing scale (20).

Images