Conveying line

Abstract

The utility model discloses a conveyor line which comprises a machine frame and a conveyor line body, a first installation plate and a second installation plate are arranged on the two sides of the top end of the machine frame respectively, the first installation plate is opposite to the second installation plate, and the conveyor line body comprises a plurality of rollers. The multiple rollers are rotatably arranged between the first mounting plate and the second mounting plate and are sequentially arranged at intervals from front to back in the length direction of the rack, baffles are arranged at the top end of the first mounting plate and the top end of the second mounting plate, and the multiple rollers are arranged in the length direction of the rack at intervals from front to back. The baffle is located behind the last roller, and the empty and full tray detection mechanism is arranged on the baffle and used for detecting the empty and full tray state of the tray. According to the utility model, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery manufacturing equipment, in particular to a conveyor line. Background Art

[0002] Due to the improvement of lithium battery production technology, trays are usually used to hold lithium batteries in the formation process and the capacity separation process. Since lithium batteries usually need to be injected with liquid for the second time after formation and capacity separation, it is usually necessary to first convey the tray containing lithium batteries after formation or capacity separation to the conveyor line through the main conveyor line, and then convey the tray to the disassembly tray station through the conveyor line, and then take out the lithium batteries in the tray one by one and transfer them to the injection equipment through the robot arranged at the disassembly tray station, and then inject liquid for the second time to all the lithium batteries through the injection equipment. After the second injection is completed, the lithium batteries after the second injection are placed back in the tray by the robot, and then the tray is conveyed to the main conveyor line through the conveyor line, and then the tray is conveyed to the next process through the main conveyor line.

[0003] After the batteries in the tray are taken out one by one by the robot, the empty or full tray status of the tray needs to be detected. When the tray is empty, the injection equipment is started to perform secondary injection on all lithium batteries. Similarly, after the lithium batteries after secondary injection are placed back in the tray by the robot, the empty or full tray status of the tray needs to be detected. When the tray is full, the conveyor line is started to transport the tray.

[0004] The existing conveyor line generally includes a frame and a conveyor line body. A first mounting plate and a second mounting plate are respectively provided on both sides of the top of the frame. The conveyor line body includes a plurality of rollers. The plurality of rollers are rotatably arranged between the first mounting plate and the second mounting plate, and the plurality of rollers are sequentially arranged from front to back along the length direction of the frame. The rotation of the plurality of rollers can realize the conveyance of the pallet to the disassembly station or the conveyance of the pallet to the main conveyor line. The conveyor line of this structure cannot automatically detect the empty or full state of the pallet after the lithium batteries in the pallet are taken out one by one by the robot and after the lithium batteries after the secondary injection are placed back in the pallet by the robot. At present, it is generally carried out manually, and this manual method has a low degree of automation, reduces production efficiency, and increases production costs. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a conveyor line which can realize automatic detection of the empty or full status of a tray, has a high degree of automation, improves production efficiency, and reduces production costs.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A conveyor line comprises a frame and a conveyor line body, wherein a first mounting plate and a second mounting plate are respectively provided on both sides of the top end of the frame, the first mounting plate is opposite to the second mounting plate, the conveyor line body comprises a plurality of rollers, the plurality of rollers are respectively rotatably arranged between the first mounting plate and the second mounting plate and the plurality of rollers are sequentially spaced from front to back along the length direction of the frame, and further comprises an empty and full tray detection mechanism, wherein a baffle is provided at the top end of the first mounting plate and the second mounting plate, the baffle is located behind the penultimate roller, the empty and full tray detection mechanism is arranged on the baffle, and the empty and full tray detection mechanism is used to detect the empty and full tray status of the tray.

[0008] As a preferred technical solution, the empty and full tray detection mechanism includes a switch bracket and a diffuse reflection photoelectric switch, the switch bracket is arranged on the side of the baffle away from the penultimate roller and the switch bracket partially protrudes from the top of the baffle, and the diffuse reflection photoelectric switch is arranged at the top of the switch bracket.

[0009] As a preferred technical solution, a circular hole is provided on the side of the baffle away from the penultimate roller, and a waist hole corresponding to the circular hole is provided on the side of the switch bracket close to the penultimate roller, the length direction of the waist hole is the same as the height direction of the switch bracket, and fasteners are installed in the waist hole and the circular hole.

[0010] As a preferred technical solution, a support plate is provided at the top of the first mounting plate and the second mounting plate, the support plate is located behind the penultimate roller, and the baffle is arranged at the top of the support plate.

[0011] As a preferred technical solution, it also includes an in-place detection mechanism, which includes at least two in-place detection components, and the two in-place detection components are spaced apart along the length direction of the frame. The in-place detection components include a mirror reflection photoelectric switch and a reflection plate, and the mirror reflection photoelectric switch is arranged at the top of the first mounting plate, and the reflection plate is arranged at the top of the second mounting plate and opposite to the mirror reflection photoelectric switch, wherein the mirror reflection photoelectric switch and the reflection plate of one in-place detection component are located between the penultimate roller and the baffle, and the mirror reflection photoelectric switch and the reflection plate of the other in-place detection component are located between the penultimate roller and the penultimate roller.

[0012] As a preferred technical solution, it also includes a side-push positioning mechanism, which includes a side-push driving member and a side-push positioning plate. A side-push seat is provided on the side of the first mounting plate away from the second mounting plate, and the side-push seat partially protrudes from the top end of the first mounting plate. The side-push driving member is arranged at the top end of the side-push seat, and the side-push plate is located above the first mounting plate. The side-push plate is connected to the output shaft of the side-push driving member, and the side-push driving member is used to drive the side-push plate to move toward or away from the conveyor line body.

[0013] As a preferred technical solution, it also includes a jacking and positioning mechanism, which is located in front of the side-push positioning mechanism and close to the second mounting plate, and the jacking and positioning mechanism is arranged between two adjacent rollers. The jacking and positioning mechanism includes a jacking drive, a mounting block, a mounting member, a positioning pin and a first micro switch. The mounting block is located above the jacking drive and is connected to the output shaft of the jacking drive, the positioning pin is arranged at the top of the positioning block, the mounting member is located on one side of the jacking drive and the mounting block and is connected to one side of the mounting block, the first micro switch is arranged on a side of the mounting member away from the jacking drive and the mounting block, the detection rod of the first micro switch protrudes from the top of the mounting block, the jacking drive is used to drive the mounting block to move up and down, thereby driving the positioning pin and the mounting member to move up and down, so that the positioning pin protrudes or is lower than the top of the roller, and the up and down movement of the mounting member can drive the first micro switch to move up and down, so that the detection rod of the first micro switch protrudes or is lower than the top of the roller.

[0014] As a preferred technical solution, the side thrust driving component and the jacking driving component are both cylinders or hydraulic cylinders.

[0015] As a preferred technical solution, it also includes an ultra-high detection mechanism, which is close to the front end of the frame and corresponds to the first roller. The ultra-high detection mechanism includes a first ultra-high detection bracket, a second ultra-high detection bracket, a beam photoelectric switch transmitter and a beam photoelectric switch receiver. The first ultra-high detection bracket is arranged on a side of the first mounting plate away from the second mounting plate and the first ultra-high detection bracket partially protrudes from the top of the first mounting plate. The second ultra-high detection bracket is arranged on a side of the second mounting plate away from the first mounting plate and the second ultra-high detection bracket partially protrudes from the top of the second mounting plate. The beam photoelectric switch transmitter and the beam photoelectric switch receiver are respectively arranged on the top of the first ultra-high detection bracket and the second ultra-high detection bracket, and the beam photoelectric switch transmitter is opposite to the beam photoelectric switch receiver.

[0016] As a preferred technical solution, it also includes a pallet direction detection mechanism, which includes a lifting drive member, an L-shaped member and a second micro switch. A support member is provided between the first mounting plate and the second mounting plate, and the support member is located below the baffle. The lifting drive member is located between the baffle and the support member and is arranged at the top of the support member. The horizontal portion of the L-shaped member is located above the lifting drive member and is connected to the output shaft of the lifting drive member. The vertical portion of the L-shaped member is located on one side of the lifting drive member. The second micro switch is arranged on the side of the vertical portion away from the lifting drive member and is located between the penultimate roller and the baffle. The lifting drive member is used to drive the horizontal portion to move up and down, thereby driving the vertical portion to move up and down, and then driving the second micro switch to move up and down, so that the detection rod of the second micro switch protrudes or is lower than the top of the roller.

[0017] The beneficial effect of the utility model is that the utility model can automatically detect the empty or full tray status of the tray by setting up an empty or full tray detection mechanism, after the lithium batteries in the tray are taken out one by one by the robot and after the lithium batteries after the second liquid injection are placed back in the tray by the robot, with a high degree of automation. Compared with the existing manual method, the utility model improves production efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is a structural schematic diagram of a conveyor line provided by an embodiment of the utility model;

[0020] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the conveying line at A shown;

[0021] Figure 3 yes Figure 1 The schematic diagram of the structure of the conveyor line and the pallet shown;

[0022] Figure 4 yes Figure 1 The structural schematic diagram of the lifting and positioning mechanism of the conveying line shown;

[0023] Figure 5 yes Figure 1 A schematic diagram of the structure of a pallet direction detection mechanism of the conveyor line shown;

[0024] Figure 6 yes Figure 1 The schematic diagram of the structure of the empty and full tray detection mechanism of the conveyor line shown;

[0025] Figure 7 yes Figure 6A schematic structural diagram of the switch bracket of the empty and full tray detection mechanism is shown. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0027] Please refer to Figure 1 and Figure 3 A conveyor line provided by one embodiment of the utility model includes a frame 10, a conveyor line body 20, a driving mechanism, an overheight detection mechanism 30, an in-place detection mechanism, a side push positioning mechanism 50, a jacking positioning mechanism 60, a pallet direction detection mechanism 70 and an empty and full pallet detection mechanism 80.

[0028] A first mounting plate 11 and a second mounting plate 12 are respectively disposed on both sides of the top of the frame 10, and the first mounting plate 11 and the second mounting plate 12 are disposed opposite to each other. A baffle 14 is disposed at the top of the first mounting plate 11 and the second mounting plate 12, and the baffle 14 is located behind the conveyor line body 20 and close to the rear end of the frame 10.

[0029] In this embodiment, a support plate 15 is provided at the top of the first mounting plate 11 and the second mounting plate 12 . The support plate 15 is located behind the conveyor line body 20 and close to the rear end of the frame 10 . The baffle 14 is provided at the top of the support plate 15 .

[0030] Preferably, the support plate 15 and the baffle plate 14 are an integrally formed part, and the integrally formed part is L-shaped.

[0031] The conveyor line body 20 is used to convey the pallet 200. Specifically, the conveyor line body 20 includes a plurality of rollers 21. The plurality of rollers 21 are rotatably disposed between the first mounting plate 11 and the second mounting plate 12, respectively, and the plurality of rollers 21 are sequentially spaced from front to back along the length direction of the frame 10. The number of rollers 21 can be set according to actual conditions. In actual application, the rotation of the plurality of rollers 21 can drive the pallet 200 to move, thereby realizing the conveying of the pallet 200. The baffle 14 and the support plate 15 are both located behind the penultimate roller 21.

[0032] In this embodiment, a first mounting hole and a second mounting hole corresponding to the roller 21 are respectively provided on one side where the first mounting plate 11 and the second mounting plate 12 are close to each other, and both ends of the roller 21 are rotatably disposed in the corresponding first mounting hole and the corresponding second mounting hole through bearings or the like.

[0033] The driving mechanism (not shown in the figure) is used to drive the plurality of rollers 21 to rotate. The driving mechanism includes a driving motor, a reducer and a chain transmission module. Two horizontal plates are respectively provided on the left and right sides of the frame 10, and a support frame is provided between the two horizontal plates. The driving motor and the reducer are both located in the frame 10. The reducer is arranged at the top of the support frame through a reducer seat, and the driving motor is arranged on the reducer. The output shaft of the driving motor is connected to the input shaft of the reducer. The chain transmission module includes a driving sprocket, a plurality of driven sprockets and a chain sleeved on the outer periphery of the driving sprocket and the plurality of driven sprockets. The driving sprocket is sleeved on the outer periphery of the output shaft of the reducer. The number of driven sprockets corresponds to the number of rollers 21, and the plurality of driven sprockets are sleeved on the outer periphery of the plurality of rollers 21 one by one, and the plurality of driven sprockets are close to the first mounting plate 11. The driving motor is used to drive the driving sprocket to rotate through the reducer, and under the action of the plurality of driven sprockets and the chain, the plurality of rollers 21 can be driven to rotate.

[0034] The super-high detection mechanism 30 is used to detect whether the height of the pallet 200 exceeds the predetermined height. The super-high detection mechanism 30 is close to the front end of the frame 10 and corresponds to the first roller 21. Specifically, the super-high detection mechanism 30 includes a first super-high detection bracket 31, a second super-high detection bracket 32, a photoelectric switch transmitter 33 and a photoelectric switch receiver. The first super-high detection bracket 31 is arranged on the side of the first mounting plate 11 away from the second mounting plate 12, and the first super-high detection bracket 31 partially protrudes from the top of the first mounting plate 11. The second super-high detection bracket 32 ​​is arranged on the side of the second mounting plate 12 away from the first mounting plate 11, and the second super-high detection bracket 32 ​​partially protrudes from the top of the second mounting plate 12. The second super-high detection bracket 32 ​​and the first super-high detection bracket 31 are arranged opposite to each other on the left and right. The photoelectric switch transmitter 33 and the photoelectric switch receiver are respectively arranged at the top of the first super-high detection bracket 31 and the top of the second super-high detection bracket 32. The photoelectric switch transmitter 33 is opposite to the photoelectric switch receiver.

[0035] In this embodiment, the top of the first superelevation detection bracket 31 is bent in a direction away from the second mounting plate 12 to form a first horizontal bending portion 311. The top of the second superelevation detection bracket 32 ​​is bent in a direction away from the first mounting plate 11 to form a second horizontal bending portion 321. The opposing photoelectric switch transmitter 33 and the opposing photoelectric switch receiver are respectively arranged at the bottom ends of the first horizontal bending portion 311 and the second horizontal bending portion 321. By respectively arranging the opposing photoelectric switch transmitter 33 and the opposing photoelectric switch receiver at the bottom ends of the first horizontal bending portion 311 and the second horizontal bending portion 321, the opposing photoelectric switch transmitter 33 and the opposing photoelectric receiver can be shielded by the first superelevation detection bracket 31 and the second superelevation detection bracket 32, thereby protecting the opposing photoelectric switch transmitter 33 and the opposing photoelectric switch receiver. A first avoidance hole corresponding to the photoelectric switch transmitter 33 is provided on one side of the first super-height detection bracket 31 close to the conveyor line body 20. The photoelectric switch transmitter 33 is used to transmit infrared light to the photoelectric switch receiver, and the emitted infrared light can be transmitted through the first avoidance hole. A second avoidance hole 322 corresponding to the photoelectric switch receiver is provided on one side of the second super-height detection bracket 32 ​​close to the conveyor line body 20. The photoelectric switch receiver is used to receive the infrared light emitted by the photoelectric switch transmitter 33 through the second avoidance hole 322. In actual application, infrared light is emitted to the photoelectric switch receiver through the photoelectric switch transmitter 33. If the photoelectric switch receiver can receive the infrared light emitted by the photoelectric switch transmitter 33, it indicates that the infrared light is not blocked by the tray 200, that is, the height of the tray 200 does not exceed the predetermined height. If the photoelectric switch receiver cannot receive the infrared light emitted by the photoelectric switch transmitter 33, it indicates that the infrared light is blocked by the tray 200, that is, the height of the tray 200 exceeds the predetermined height.

[0036] The in-place detection mechanism is used to detect whether the tray 200 has arrived at the disassembly tray station. Specifically, the in-place detection mechanism includes two in-place detection components, and the two in-place detection components are arranged in a front-to-back interval along the length direction of the frame 10. The in-place detection component includes a mirror reflection photoelectric switch 41 and a reflection plate 42, and the mirror reflection photoelectric switch 41 is arranged at the top of the first mounting plate 11. The reflection plate 42 is arranged at the top of the second mounting plate 12 and is opposite to the mirror reflection photoelectric switch 41. The mirror reflection photoelectric switch 41 and the reflection plate 42 of one in-place detection component are located between the penultimate roller 21 and the baffle 14, and the mirror reflection photoelectric switch 41 and the reflection plate 42 of the other in-place detection component are located between the penultimate roller 21 and the penultimate roller 21. The mirror reflection photoelectric switch 41 is used to emit infrared light to the reflection plate 42, and the reflection plate 42 is used to reflect the infrared light emitted by the mirror reflection photoelectric switch 41 back to the mirror reflection photoelectric switch 41. In actual application, when the mirror reflection photoelectric switches 41 of the two in-place detection components respectively emit infrared light to the corresponding reflection plates 42, if, for example, the mirror reflection photoelectric switch 41 of the in-place detection component located in the front cannot receive the infrared light reflected back by the corresponding reflection plate 42, it means that the infrared light emitted by the mirror reflection photoelectric switch 41 of the in-place detection component is not blocked by the tray 200, and at this time the tray 200 has not reached the disassembly tray station; if the mirror reflection photoelectric switch 41 of the in-place detection component located in the front cannot receive the infrared light reflected back by the corresponding reflection plate 42, and the mirror reflection photoelectric switch 41 of the in-place detection component located in the rear can receive the infrared light reflected back by the corresponding reflection plate 42, it means that the infrared light emitted by the mirror reflection photoelectric switch 41 of the in-place detection component located in the front is blocked by the tray 200, and the infrared light emitted by the mirror reflection photoelectric switch 41 of the in-place detection component located in the rear is not blocked by the tray 200, and at this time the tray 200 has not reached the disassembly tray station. If the mirror reflection photoelectric switches 41 of the two in-place detection components cannot receive the infrared light reflected back by the corresponding reflection plate 42, it means that the infrared light emitted by the mirror reflection photoelectric switches 41 of the two in-place detection components is blocked by the tray 200. At this time, the tray 200 arrives at the disassembly tray station.

[0037] It is understandable that the number of the in-place detection components may be other numbers, such as one, three, etc., and may be set according to actual conditions.

[0038] The side-push positioning mechanism 50 is used to roughly position the pallet 200. The side-push positioning mechanism 50 is located between the in-place detection mechanism and the super-height detection mechanism 30. Specifically, the side-push positioning mechanism 50 includes a side-push driving member 51 and a side-push positioning plate 52. An L-shaped side-push seat 111 is provided on the side of the first mounting plate 11 away from the second mounting plate 12, and the side-push seat 111 partially protrudes from the top end of the first mounting plate 11, and the side-push driving member 51 is arranged at the top end of the side-push seat 111. The side-push plate 52 is located above the first mounting plate 11 and between the side-push driving member 51 and the conveyor line body 20, and the side-push plate 52 is connected to the output shaft of the side-push driving member 51. The side-push driving member 51 is used to drive the side-push plate 52 to move toward or away from the conveyor line body 20. In actual application, the side push driving member 51 drives the side push block 52 to move toward the conveyor line body 20 until the side push block 52 abuts against one side of the tray 200 , thereby achieving rough positioning of the tray 200 .

[0039] Combination Figure 2 and Figure 4 As shown, the lifting and positioning mechanism 60 is used to accurately position the pallet 200. The lifting and positioning mechanism 60 is located in front of the side push positioning mechanism 50, and the lifting and positioning mechanism 60 is located between the side push positioning mechanism 50 and the super height detection mechanism 30. The lifting and positioning mechanism 60 is close to the second mounting plate 12, and the lifting and positioning mechanism 60 is arranged between two adjacent rollers 21. In this embodiment, the lifting and positioning mechanism 60 is arranged between the third roller 21 and the fourth roller 21.

[0040] Specifically, the lifting and positioning mechanism 60 includes a lifting drive 61, a mounting block 62, a Z-shaped mounting member 63, a positioning pin 64 and a first micro switch 65 (a micro switch is a micro travel switch, and a micro travel switch is an existing structure). The mounting block 62 is located above the lifting drive 61 and is connected to the output shaft of the lifting drive 61. The positioning pin 64 is arranged at the top of the positioning block 62. In actual application, the positioning pin 64 is adapted to the positioning hole at the bottom of the tray 200. The mounting member 63 is located on one side of the lifting drive 61 and the mounting block 62, for example, on the left side of the lifting drive 61 and the mounting block 62 and is connected to one side of the mounting block 62. The first micro switch 65 is arranged on the side of the mounting member 63 away from the lifting drive 61 and the mounting block 62, and the detection rod 651 of the first micro switch 65 protrudes from the top of the mounting block 62. The lifting drive member 61 is used to drive the mounting block 62 to move up and down, thereby driving the positioning pin 64 and the mounting member 63 to move up and down, so that the positioning pin 64 protrudes or is lower than the top of the roller 21. The up and down movement of the mounting member 63 can drive the first micro switch 65 to move up and down, so that the detection rod 651 of the first micro switch 65 protrudes or is lower than the top of the roller 21. In actual application, the positioning pin 64 and the first micro switch 65 are driven upward by the lifting drive member 61 to make the positioning pin 64 and the detection rod 651 of the first micro switch 65 protrude from the top of the roller 21. When the positioning pin 64 is matched with the positioning hole at the bottom end of the tray 200, the tray 200 is accurately positioned. At this time, the detection rod 651 of the first micro switch 65 is against the bottom end of the tray 200, and the first micro switch 65 is triggered, indicating that the accurate positioning of the tray 200 has been completed. The positioning pin 64 is driven to move upward by the lifting drive 61, so that the positioning pin 64 can protrude from the top of the roller 21, so that the tray 200 can be accurately positioned by the positioning pin 64, and the first micro switch 65 is driven to move upward by the lifting drive 61, so that the detection rod 651 of the first micro switch 65 can protrude from the top of the roller 21, so that it is convenient to detect whether the positioning of the tray 200 is completed by the first micro switch 65, and the positioning pin 64 and the first micro switch 65 are driven to move downward by the lifting drive 61, so that the positioning pin 64 and the detection rod 651 of the first micro switch 65 can be lower than the top of the roller 21, so that the positioning pin 64 and the detection rod 651 of the first micro switch 65 can be avoided from being damaged, thereby extending the service life of the positioning pin 64 and the first micro switch 65 and improving the safety of use.

[0041] In this embodiment, a jacking seat is provided on one side of the second mounting plate 12 close to the first mounting plate 11, and a jacking drive member 61 is provided on one side of the jacking seat away from the second mounting plate 12, and a portion of the jacking drive member 61 protrudes from the bottom end of the roller 21 and extends into the frame 10. The jacking seat can provide installation support for the jacking drive member 61.

[0042] Combination Figure 5 As shown, the tray direction detection mechanism 70 is used to detect whether the direction of the tray 200 is correct. Specifically, the tray direction detection mechanism 70 includes a lifting drive member 71, an L-shaped member 72, and a second micro switch 73 (a micro switch is a micro travel switch, and the micro travel switch is an existing structure). A support member 13 is provided between the first mounting plate 11 and the second mounting plate 12, and the support member 13 is located below the baffle 14 and the support plate 15. The lifting drive member 71 is located between the baffle 14, the support plate 15 and the support member 13 and is arranged at the top of the support member 13. The L-shaped member 72 includes a horizontal portion 721 and a vertical portion 722 connected to each other, the horizontal portion 721 of the L-shaped member 72 is located above the lifting drive member 71 and connected to the output shaft of the lifting drive member 71, and the vertical portion 722 of the L-shaped member 72 is located on one side of the lifting drive member 71, such as in front of the lifting drive member 71. The second micro switch 73 is arranged on the side of the vertical portion 722 away from the lifting drive member 71 and is located between the penultimate roller 21 and the baffle 14. The lifting drive member 71 is used to drive the horizontal portion 721 to move up and down, thereby driving the vertical portion 722 to move up and down, and further driving the second micro switch 73 to move up and down, so that the detection rod 731 of the second micro switch 73 protrudes or is lower than the top of the roller 21. In actual application, the detection rod 731 of the second micro switch 73 is used to match the anti-reverse detection notch at the bottom of the tray 200. In actual application, the second micro switch 73 is driven to move upward by the lifting drive member 71, so that the detection rod 731 of the second micro switch 73 protrudes from the top of the roller 21. When the detection rod 731 of the second micro switch 73 is located in the anti-reverse detection notch at the bottom of the tray 200, the second micro switch 73 is not triggered at this time, indicating that the direction of the tray 200 is correct. When the detection rod 731 of the second micro switch 73 abuts against the bottom of the tray 200, the second micro switch 73 is triggered at this time, indicating that the direction of the tray 200 is incorrect, that is, the tray 200 is placed upside down. The second microswitch 73 is driven upward by the lifting drive 71, so that the detection rod 731 of the second microswitch 73 can protrude from the top of the roller 21, thereby facilitating the detection of the direction of the tray 200 by the second microswitch 71. The second microswitch 73 is driven downward by the lifting drive 71, so that the detection rod 731 of the second microswitch 73 can be lower than the top of the roller 21, thereby avoiding damage to the second microswitch 73, extending the service life of the second microswitch 73 and improving the safety of use.

[0043] In this embodiment, the side push drive member 51, the jacking drive member 61, and the lifting drive member 71 are all cylinders. It can be understood that the side push drive member 51, the jacking drive member 61, and the lifting drive member 71 can also be other types such as hydraulic cylinders, electric cylinders, etc.

[0044] Combination Figure 6 and Figure 7As shown, the empty and full tray detection mechanism 80 is used to detect the empty and full tray state of the tray 200. The empty tray state means that the tray 200 is an empty tray 200, and the full tray state means that the tray 200 is full of lithium batteries 300. The empty and full tray detection mechanism 80 is arranged on the baffle 14. Specifically, the empty and full tray detection mechanism 80 includes a switch bracket 81 and a diffuse reflection photoelectric switch 82. The switch bracket 81 is arranged on the side of the baffle 14 away from the last roller 21 and the switch bracket 81 partially protrudes from the top of the baffle 14. The diffuse reflection photoelectric switch 82 is arranged at the top of the switch bracket 81.

[0045] In this embodiment, the top of the switch bracket 81 is bent in a direction away from the conveyor line body 20 to form a horizontal flange 811. The diffuse reflection photoelectric switch 82 is arranged at the bottom end of the horizontal flange 811. By arranging the diffuse reflection photoelectric switch 82 at the bottom end of the horizontal flange 811, the diffuse reflection photoelectric switch 82 can be shielded by the switch bracket 81, thereby protecting the diffuse reflection photoelectric switch 82. A light-transmitting hole 812 corresponding to the diffuse reflection photoelectric switch 82 is provided on one side of the switch bracket 81 close to the conveyor line body 20. The diffuse reflection photoelectric switch 82 is an existing structure. In actual application, the diffuse reflection photoelectric switch 82 is matched with the measuring window 201 at one end of the tray 200. When the diffuse reflection photoelectric switch 82 and the light transmission hole 812 are opposite to the measuring window 201 of the tray 200, the diffuse reflection photoelectric switch 82 emits infrared light into the tray 200 through the light transmission hole 812 and the measuring window 201 of the tray 200. For example, when the tray 200 is in an empty tray state, after the diffuse reflection photoelectric switch 82 emits infrared light into the tray 200 through the light transmission hole 812 and the measuring window 201 of the tray 200, since there is no lithium battery 300 in the tray 200, the infrared light is diffusely reflected by the inner wall of the other end of the tray 200 at this time. Since the inner wall of the other end of the tray 200 is farthest from the diffuse reflection photoelectric switch 82, the infrared light is diffusely reflected by the measuring window 201 and the light transmission hole 812. After the infrared light is incident back to the diffuse reflection photoelectric switch 82, the intensity of the diffuse reflection light sensed by the diffuse reflection photoelectric switch 82 is the weakest, so it can be determined that the tray 200 is in an empty tray state. When the tray 200 is in a full tray state, after the infrared light is emitted into the tray 200 through the diffuse reflection photoelectric switch 82 via the light transmission hole 812 and the measuring window 201 of the tray 200, since the tray 200 is full of lithium batteries 300, at this time, the infrared light is diffusely reflected by the lithium battery 300 in the tray 200 that is close to the measuring window 201. Since the lithium battery 300 is closest to the diffuse reflection photoelectric switch 82, after the infrared light is incident back to the diffuse reflection photoelectric switch 82 via the measuring window 201 and the light transmission hole 812, the intensity of the diffuse reflection light sensed by the diffuse reflection photoelectric switch 82 is the strongest, so it can be determined that the tray 200 is in a full tray state. When the intensity of the diffuse reflection light sensed by the diffuse reflection photoelectric switch 82 is between the strongest and the weakest, it indicates that there are lithium batteries 300 in the tray 200, and the tray 200 is neither in an empty tray state nor in a full tray state.

[0046] The tray 200 has two rows of placement positions, each of which can hold a lithium battery 300, and there are two measuring windows 201. Figure 3 As shown, there are two empty and full tray detection mechanisms 80 in this embodiment. The two empty and full tray detection mechanisms 80 are arranged at intervals on the left and right along the length direction of the baffle 14, and each empty and full tray detection mechanism 80 corresponds to a measurement window 201.

[0047] In this embodiment, a round hole is provided on the side of the baffle 14 away from the penultimate roller 21, and a waist hole 813 corresponding to the round hole is provided on the side of the switch bracket 81 close to the penultimate roller 21 (the waist hole 813 is a hole with semicircular ends and a rectangular middle), and the length direction of the waist hole 813 is the same as the height direction of the switch bracket 81. Fasteners such as screws are installed in the waist hole 813 and the round hole. The number of waist holes 813 and round holes can be set according to actual conditions. Through this structure, the height of the diffuse reflection photoelectric switch 82 can be adjusted. For example, assuming that in the initial state, the fastener is installed in the lower end of the round hole and the waist hole 813, if the height of the diffuse reflection photoelectric switch 82 is to be reduced, the fastener is first removed from the round hole and the waist hole 813, and then the switch bracket 81 is moved downward, and then the fastener is reinstalled in the round hole and the waist hole 813. In this way, the height of the diffuse reflection photoelectric switch 82 is reduced. Afterwards, if the height of the diffuse reflection photoelectric switch 82 is to be increased, the fastener is first removed from the round hole and the waist hole 813, and then the switch bracket 81 is moved upward, and then the fastener is installed in the round hole and the waist hole 813. In this way, the height of the diffuse reflection photoelectric switch 82 is increased.

[0048] In this embodiment, a support sheet 121 is provided at the top of the second mounting plate 12 , the support plate 15 is disposed at the top of the first mounting plate 11 and the support sheet 121 , and the reflector 42 is disposed at the top of the support sheet 121 .

[0049] Through the above structure, in actual application, the plurality of rollers 21 are first driven to rotate by a driving motor. When the tray 200 containing the lithium batteries 300 moves to the top of the first roller 21 under the conveyance of the main conveyor line, the super-height detection mechanism 30 detects whether the height of the tray 200 exceeds the predetermined height. If the height of the tray 200 does not exceed the predetermined height, the main conveyor line and the rotation of the plurality of rollers 21 can drive the tray 200 to move backward. If the height of the tray 200 exceeds the predetermined height, the staff needs to remove the tray 200 from the main conveyor line and the first roller 21. Since the heights of the lithium batteries 300 contained in trays 200 of different heights are different, the super-height detection mechanism 30 is used to detect whether the height of the tray 200 exceeds the predetermined height, so as to ensure the consistency of the production of lithium batteries 300.

[0050] Then, the in-position detection mechanism detects whether the tray 200 has reached the disassembly tray station. When the tray 200 reaches the disassembly tray station, the driving motor stops driving the plurality of rollers 21 to rotate, so that the plurality of rollers 21 can stop conveying the tray 200, and the tray 200 is located at the disassembly tray station. After the tray 200 reaches the disassembly tray station, one end of the tray 200 contacts the baffle 14, and the measuring window 201 of the tray 200 is opposite to the light-transmitting hole 812 and the diffuse reflection photoelectric switch 82.

[0051] Then, the tray direction detection mechanism 70 detects whether the direction of the tray 200 is correct: the second micro switch 73 is driven upward by the lifting drive 71 so that the detection rod 731 of the second micro switch 73 protrudes from the top of the roller 21. When the detection rod 731 of the second micro switch 73 is located in the anti-reverse detection gap of the tray 200, the second micro switch 73 is not triggered, indicating that the direction of the tray 200 is correct. If the second micro switch 73 is triggered, it indicates that the direction of the tray 200 is incorrect, that is, the tray 200 is placed upside down, and the staff needs to adjust the direction of the tray 200. After the detection is completed, the second micro switch 73 is driven downward to the initial position by the lifting drive 71 so that the detection rod 731 of the second micro switch 73 is lower than the top of the roller 21. By detecting the direction of the tray 200 through the tray direction detection mechanism 70, it can ensure the smooth positioning of the tray 200 by the side push positioning mechanism 50 and the jacking positioning mechanism 60, and can ensure the correctness of the direction of the lithium battery 300 in the tray 200, so as to facilitate the subsequent secondary liquid filling of the lithium battery 300.

[0052] The pallet 200 is then roughly positioned by the side push positioning mechanism 50: the side push driving member 51 drives the side push plate 52 to move toward the conveyor line body 20 until the side push block 52 abuts against one side of the pallet 200, so that the pallet 200 can be roughly positioned by the side push block 52.

[0053] Then, the tray 200 is precisely positioned by the lifting positioning mechanism 60: the positioning pin 64 and the first micro switch 65 are driven upward by the lifting driving member 61, so that the positioning pin 64 and the detection rod 651 of the first micro switch 65 protrude from the top of the roller 21. When the positioning pin 64 matches the positioning hole at the bottom of the tray 200, the tray 200 is precisely positioned. At this time, the detection rod 651 of the first micro switch 65 abuts against the bottom of the tray 200, and the first micro switch 65 is triggered, indicating that the precise positioning of the tray 200 has been completed. The tray 200 is roughly positioned and precisely positioned by the side push positioning mechanism 50 and the lifting positioning mechanism 60, respectively, so that the tray 200 will not be offset, which is convenient for the robot to take and place the lithium battery 300.

[0054] Then, the manipulator at the disassembling station takes out the lithium batteries 300 in the tray 200 one by one and transfers them to the liquid injection device. Then, the empty and full tray detection mechanism 80 detects the empty and full tray status of the tray 200. When the intensity of the diffuse reflection light sensed by the diffuse reflection photoelectric switch 82 is the weakest, the tray 200 is in the empty tray status. At this time, the liquid injection device performs secondary liquid injection on all the lithium batteries 300.

[0055] After the secondary liquid injection is completed, the lithium batteries 300 after the secondary liquid injection are placed one by one in the placement position in the tray 200 by the manipulator. Then, the empty and full tray detection mechanism 80 detects the empty and full tray status of the tray 200. When the intensity of the diffuse reflection light sensed by the diffuse reflection photoelectric switch 82 is the strongest, the tray 200 is in the full tray status. At this time, the side push block 52 is driven by the side push drive member 51 to move away from the conveyor line body 20 to the initial position, and the positioning pin 64 and the first micro switch 65 are driven by the lifting drive member 61 to move downward to the initial position. Then, the multiple rollers 21 are driven to rotate by the driving motor, so that the multiple rollers 21 can drive the tray 200 to move forward, so as to convey the tray 200 to the main conveyor line, and then the tray 200 can be conveyed to the next process through the main conveyor line.

[0056] The utility model is provided with an empty and full tray detection mechanism 80, which can automatically detect the empty and full tray status of the tray 200 after the lithium batteries 300 in the tray 200 are taken out one by one by the robot and after the lithium batteries 300 after the second liquid injection are replaced in the tray 200 by the robot. The utility model has a high degree of automation, which improves production efficiency and reduces production costs compared with the existing manual method.

[0057] In addition, in addition to the above-mentioned processes, the utility model is also applicable to other processes in lithium battery production that require disassembly and assembly of trays, and is also applicable to similar working conditions in other industries.

[0058] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A conveyor line, comprising a frame and a conveyor line body, wherein a first mounting plate and a second mounting plate are respectively disposed on both sides of the top of the frame, the first mounting plate is opposite to the second mounting plate, the conveyor line body comprises a plurality of rollers, the plurality of rollers are rotatably disposed between the first mounting plate and the second mounting plate, and the plurality of rollers are sequentially spaced from front to back along the length direction of the frame, characterized in that: It also includes an empty and full tray detection mechanism, wherein a baffle is provided at the top of the first mounting plate and the second mounting plate, and the baffle is located behind the penultimate roller. The empty and full tray detection mechanism is arranged on the baffle, and the empty and full tray detection mechanism is used to detect the empty and full status of the tray.

2. The conveyor line according to claim 1, characterized in that: The empty and full tray detection mechanism includes a switch bracket and a diffuse reflection photoelectric switch. The switch bracket is arranged on the side of the baffle away from the penultimate roller and the switch bracket partially protrudes from the top of the baffle. The diffuse reflection photoelectric switch is arranged on the top of the switch bracket.

3. The conveyor line according to claim 2, characterized in that: A round hole is provided on the side of the baffle away from the penultimate roller, and a waist hole corresponding to the round hole is provided on the side of the switch bracket close to the penultimate roller. The length direction of the waist hole is the same as the height direction of the switch bracket, and fasteners are installed in the waist hole and the round hole.

4. The conveyor line according to claim 1, characterized in that: A support plate is provided at the top of the first mounting plate and the second mounting plate. The support plate is located behind the penultimate roller, and the baffle is arranged at the top of the support plate.

5. The conveyor line according to claim 1, characterized in that: It also includes an in-place detection mechanism, which includes at least two in-place detection components, and the two in-place detection components are spaced apart along the length direction of the frame. The in-place detection components include a mirror reflection photoelectric switch and a reflection plate, and the mirror reflection photoelectric switch is arranged at the top end of the first mounting plate, and the reflection plate is arranged at the top end of the second mounting plate and is opposite to the mirror reflection photoelectric switch, wherein the mirror reflection photoelectric switch and the reflection plate of one in-place detection component are located between the penultimate roller and the baffle, and the mirror reflection photoelectric switch and the reflection plate of the other in-place detection component are located between the penultimate roller and the penultimate roller.

6. The conveyor line according to claim 1, characterized in that: It also includes a side-push positioning mechanism, which includes a side-push driving member and a side-push plate. A side-push seat is provided on the side of the first mounting plate away from the second mounting plate, and the side-push seat partially protrudes from the top end of the first mounting plate. The side-push driving member is arranged at the top end of the side-push seat, and the side-push plate is located above the first mounting plate. The side-push plate is connected to the output shaft of the side-push driving member, and the side-push driving member is used to drive the side-push plate to move toward or away from the conveyor line body.

7. The conveyor line according to claim 6, characterized in that: The lifting and positioning mechanism is also included, which is located in front of the side-pushing positioning mechanism and close to the second mounting plate. The lifting and positioning mechanism is arranged between two adjacent rollers. The lifting and positioning mechanism includes a lifting drive, a mounting block, a mounting member, a positioning pin and a first micro switch. The mounting block is located above the lifting drive and is connected to the output shaft of the lifting drive, the positioning pin is arranged at the top of the mounting block, the mounting member is located on one side of the lifting drive and the mounting block and is connected to one side of the mounting block, the first micro switch is arranged on a side of the mounting member away from the lifting drive and the mounting block, the detection rod of the first micro switch protrudes from the top of the mounting block, the lifting drive is used to drive the mounting block to move up and down, thereby driving the positioning pin and the mounting member to move up and down, so that the positioning pin protrudes or is lower than the top of the roller, and the up and down movement of the mounting member can drive the first micro switch to move up and down, so that the detection rod of the first micro switch protrudes or is lower than the top of the roller.

8. The conveyor line according to claim 7, characterized in that: The side thrust driving member and the lifting driving member are both air cylinders or hydraulic cylinders.

9. The conveyor line according to claim 1, characterized in that: It also includes an ultra-high detection mechanism, which is close to the front end of the frame and corresponds to the first roller. The ultra-high detection mechanism includes a first ultra-high detection bracket, a second ultra-high detection bracket, a beam photoelectric switch transmitter and a beam photoelectric switch receiver. The first ultra-high detection bracket is arranged on a side of the first mounting plate away from the second mounting plate and the first ultra-high detection bracket partially protrudes from the top of the first mounting plate. The second ultra-high detection bracket is arranged on a side of the second mounting plate away from the first mounting plate and the second ultra-high detection bracket partially protrudes from the top of the second mounting plate. The beam photoelectric switch transmitter and the beam photoelectric switch receiver are respectively arranged on the tops of the first ultra-high detection bracket and the second ultra-high detection bracket, and the beam photoelectric switch transmitter is opposite to the beam photoelectric switch receiver.

10. The conveyor line according to claim 1, characterized in that: It also includes a pallet direction detection mechanism, which includes a lifting drive member, an L-shaped member and a second micro switch. A support member is provided between the first mounting plate and the second mounting plate, and the support member is located below the baffle. The lifting drive member is located between the baffle and the support member and is arranged at the top of the support member. The horizontal portion of the L-shaped member is located above the lifting drive member and is connected to the output shaft of the lifting drive member. The vertical portion of the L-shaped member is located on one side of the lifting drive member. The second micro switch is arranged on the side of the vertical portion away from the lifting drive member and is located between the penultimate roller and the baffle. The lifting drive member is used to drive the horizontal portion to move up and down, thereby driving the vertical portion to move up and down, and then driving the second micro switch to move up and down, so that the detection rod of the second micro switch protrudes or is lower than the top of the roller.

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