Cap coding conveyor

Abstract

The application discloses a top cover coding conveying device, which comprises a conveying unit and a conveying jig. The conveying jig comprises a mounting bottom plate placed on the conveying unit. The mounting bottom plate is provided with a centering structure and a clamping structure, and the centering structure and the clamping structure surround a mounting area for placing the top cover. The conveying unit comprises a positioning mechanism, an opening and closing mechanism and a power mechanism. The power mechanism is connected with the positioning mechanism and the opening and closing mechanism, and drives the positioning mechanism and the opening and closing mechanism to generate a movement of approaching or separating from the mounting bottom plate synchronously. Through the above arrangement, the conveying jig can be opened and centered when being transported on the conveying unit, so as to facilitate the automation of feeding, discharging and processing. Meanwhile, the positioning mechanism can automatically realize the fixed stay of the conveying jig at each station, and cooperate with the equipment at each station to complete corresponding processing. The whole process has high automation degree and high processing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery production, and particularly relates to a top cover coding conveying device. BACKGROUND

[0002] In lithium battery production, a top cover, a battery cell and a shell are assembled, and after multiple assembly processes and welding, a sealed battery structure is formed. The top cover also needs to go through a series of processing processes to meet the assembly requirements, one of which is top cover coding. The main purpose of top cover coding is to pre-encode a code with production information on the top cover, so that each battery can be tracked and fed back in the subsequent assembly process, or when a problem occurs, it can be traced back and deduced in time. It is very important for automated and intelligent production.

[0003] The existing coding process includes multiple steps, that is, after coding is completed, the code needs to be scanned for re-inspection. The top cover product with unqualified coding needs to be removed in time. However, in the prior art, the above steps are mostly implemented manually, which is prone to errors and is also troublesome when transferring between different stations, thereby reducing production efficiency. SUMMARY

[0004] In order to solve the defects in the prior art, the present application provides a top cover coding conveying device.

[0005] The technical scheme adopted by the present application is that the top cover coding conveying device comprises a conveying unit and a conveying jig,

[0006] The conveying jig comprises a mounting bottom plate placed on the conveying unit, the mounting bottom plate is provided with a centering structure along the length direction and a clamping structure along the width direction, and the centering structure and the clamping structure surround the mounting area for placing the top cover; the conveying unit comprises:

[0007] A positioning mechanism is in abutting cooperation with the mounting bottom plate to fix the mounting bottom plate;

[0008] An opening and closing mechanism is in power connection with the centering structure and the clamping structure, and drives the centering structure and the clamping structure to open and close respectively;

[0009] A power mechanism is connected with the positioning mechanism and the opening and closing mechanism, and drives the positioning mechanism and the opening and closing mechanism to move close to or away from the mounting bottom plate synchronously.

[0010] Preferably, the centering structure comprises a positioning plate fixed to one side of the installation base plate in the length direction, a centering plate slidably connected to the other side of the installation base plate in the length direction, and the opening and closing mechanism is in power connection with the centering plate to drive the centering plate to open and close relative to the positioning plate.

[0011] Preferably, the centering structure comprises at least one pair of centering plates arranged along the length direction of the installation base plate, and each pair of centering plates is distributed on both sides of the installation area, and the opening and closing mechanism is in power connection with the centering plate to drive each pair of centering plates to open and close.

[0012] Preferably, the installation base plate is further provided with a sliding rail, an installation block and a fixed block, the installation block is slidably connected to the sliding rail, and the fixed block is provided between the installation block and the fixed block and is provided with a spring to drive the installation block to move towards the fixed block.

[0013] One side of each installation block is fixedly connected with a horizontal bearing, and the other end is fixedly connected with a centering plate, the opening and closing mechanism comprises a wedge-shaped block, the extension direction of the wedge-shaped block is perpendicular to the installation direction of the sliding rail, and the inclined edge of the wedge-shaped block is in abutment with the peripheral surface of the horizontal bearing, or the two inclined edges of one wedge-shaped block are in abutment with the peripheral surfaces of two horizontal bearings respectively.

[0014] Preferably, the positioning mechanism comprises a positioning device and a limiting rotating wheel fixedly connected with the positioning device, V-shaped stop grooves are formed on both sides of the installation base plate, and the power mechanism is fixed with the positioning device and drives the limiting rotating wheel to be inserted and matched in the V-shaped stop groove.

[0015] Preferably, the power mechanism is a positioning cylinder fixed on the conveying unit, the extension end of the positioning cylinder is fixedly connected with the positioning device, the positioning device is fixedly provided with a positioning block, and the wedge-shaped block and the limiting rotating wheel are fixed on the same side of the positioning block.

[0016] Preferably, the clamping structure comprises a reference plate arranged at one end along the width direction of the installation base plate and a clamping plate slidably connected to the other end along the width direction of the installation base plate, and the opening and closing mechanism is in power connection with the clamping plate to drive the clamping plate to open and close relative to the reference plate.

[0017] Preferably, the clamping structure comprises a pair of clamping plates arranged along the width direction of the installation base plate, and the opening and closing mechanism is in power connection with the clamping plate to drive a pair of clamping plates to open and close.

[0018] Preferably, the mounting base is further provided with a limiting protrusion, a pushing protrusion and a sliding guide column, the limiting protrusion is fixed on the mounting base, the sliding guide column is slidably arranged in the limiting protrusion along the length direction of the mounting base, one end of the sliding guide column is fixedly connected with the clamping plate, the other end of the sliding guide column is fixedly connected with the pushing protrusion, and the limiting protrusion and the clamping plate are further provided with a compression spring.

[0019] The opening and closing mechanism further comprises a pushing device, each of the pushing devices comprises a pushing plug and a pushing cylinder, and one side of the pushing plug is in abutment with one side of the pushing protrusion close to the clamping plate.

[0020] Preferably, the conveying unit comprises a rack and a conveying belt, and the power mechanism comprises positioning cylinders fixed on both sides of the rack, and the extension and retraction directions of the extension and retraction rods of the positioning cylinders are perpendicular to the conveying direction of the conveying belt.

[0021] Compared with the prior art, the present application has the following beneficial effects: the transport fixture can be centered and opened and closed when being transported on the conveying unit, so as to facilitate the automation of feeding, discharging and processing; meanwhile, the positioning mechanism can automatically fix and stop the transport fixture at each station, and cooperate with the equipment at each station to complete corresponding processing, so that the automation degree of the whole process is high, and the processing efficiency is also high. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be described in detail below with reference to the embodiments and the drawings, in which:

[0023] Figure 1 is the overall structure axial view of the embodiment of the present application;

[0024] Figure 2 is the overall structure axial view of the embodiment of the present application; Figure 1 is the overall structure axial view of the embodiment of the present application;

[0025] Figure 3 is the overall structure schematic view of the transport fixture in the embodiment of the present application;

[0026] Figure 4 is the isometric view of the transport fixture in the embodiment of the present application;

[0027] Figure 5 is the structure schematic view of the positioning mechanism and the opening and closing mechanism in the embodiment of the present application;

[0028] Figure 6 is the structure schematic view of the positioning mechanism and the opening and closing mechanism in the embodiment of the present application; Figure 1 is the enlarged view of the pushing device in the embodiment of the present application.

[0029] 10, rack; 11, power motor; 12, conveying belt; 13, transmission shaft; 14, transmission wheel; 15, synchronous belt; 16, infrared sensor;

[0030] 20, transport fixture; 21, mounting base plate; 211, sliding rail; 212, moving rotary wheel; 213, fixed block; 22, mounting block; 23, positioning plate; 24, centering plate; 25, reference plate; 26, clamping plate; 27, horizontal bearing; 28, limiting protrusion; 281, actuating protrusion; 282, sliding guide column; 29, V-shaped stop groove;

[0031] 30, positioning mechanism; 31, positioning device; 311, positioning block; 312, limiting rotary wheel; 32, positioning cylinder; 33, telescopic rod; 40, opening and closing mechanism; 41, wedge-shaped block; 42, actuating device; 421, actuating cylinder; 422, actuating plate; 423, actuating tongue. DETAILED DESCRIPTION

[0032] The present application provides a conveying device for top cover coding in lithium battery assembly production process, which mainly comprises a conveying unit and a plurality of transport fixtures. The transport fixtures are conveyed on the conveying unit and sequentially pass through a plurality of processing stations. The transport fixture 20 comprises a mounting base plate 21 placed on the conveying unit. The mounting base plate 21 is provided with a centering structure along the length direction and a clamping structure along the width direction. The centering structure and the clamping structure form an installation area for placing the top cover. The conveying unit comprises:

[0033] A positioning mechanism 30 is in abutting cooperation with the mounting base plate 21 to fix the mounting base plate 21.

[0034] An opening and closing mechanism 40 is in power connection with the centering structure and the clamping structure to drive the centering structure and the clamping structure to open and close, respectively.

[0035] A power mechanism is connected with the positioning mechanism 30 and the opening and closing mechanism 40 and drives the positioning mechanism 30 and the opening and closing mechanism 40 to move close to or away from the mounting base plate 21 synchronously.

[0036] In an embodiment, the centering structure comprises a positioning plate 23 fixed on one side of the mounting base plate 21 along the length direction and a centering plate 24 slidingly connected on the other side of the mounting base plate 21 along the length direction. The opening and closing mechanism 40 is in power connection with the centering plate 24 to drive the centering plate 24 to open and close slidingly relative to the positioning plate 23.

[0037] In one embodiment, the centering structure comprises at least one pair of centering plates 24 arranged along the length direction of the mounting base plate 21, and each pair of centering plates 24 is distributed on opposite sides of the mounting area, and the opening and closing mechanism 40 is in power connection with the centering plates 24 to drive each pair of centering plates 24 to open and close slidingly. In this embodiment, each pair of centering plates 24 can open and close slidingly, so the opening and closing stroke of each centering plate 24 can be relatively shortened.

[0038] In one embodiment, the mounting base plate 21 is further provided with a sliding rail 211, a mounting block 22 and a fixing block 213, the mounting block 22 is in sliding connection with the sliding rail 211, and the fixing block 213 is provided between the mounting block 22 and the fixing block 213 and drives the mounting block 22 to move towards the fixing block;

[0039] One side of each mounting block 22 is fixedly connected with a horizontal bearing 27, and the other end is fixedly connected with one centering plate 24, and the opening and closing mechanism 40 comprises a wedge-shaped block 41, the extension direction of the wedge-shaped block 41 is perpendicular to the mounting direction of the sliding rail 211, and when the wedge-shaped block 41 extends or retracts, the oblique edge thereof can move to a position in contact with the peripheral surface of the horizontal bearing 27, thereby driving the mounting block to move laterally and horizontally; in another embodiment, the two oblique edges of one wedge-shaped block 41 can be in contact with the peripheral surface of one horizontal bearing 27 of one mounting block 22, respectively, so that when the wedge-shaped block 41 extends or retracts, a pair of mounting blocks can be controlled to open and close synchronously.

[0040] In one embodiment, the positioning mechanism 30 comprises a positioning device 31 and a limiting rotating wheel 312 fixedly connected with the positioning device 31, V-shaped stop grooves 29 are formed on both sides of the mounting base plate 21, and the power mechanism is fixed with the positioning device 31 and drives the limiting rotating wheel 312 to be inserted and matched in the V-shaped stop groove 29.

[0041] In one embodiment, the power mechanism is a positioning cylinder 32 fixed on the conveying unit, the extension end of the positioning cylinder 32 is fixedly connected with the positioning device 31, the positioning device 31 is fixedly provided with a positioning block 311, and the wedge-shaped block 41 and the limiting rotating wheel 312 are both fixed on the same side of the positioning block 311. In this embodiment, the extension end of the positioning cylinder 32 has different threaded holes, and the positioning device 31 can be fixed at different positions of the extension end of the positioning cylinder 32 through bolts, so as to achieve the effect of adjusting the mounting positions of the limiting rotating wheel 312 and the wedge-shaped block 41.

[0042] In one embodiment, the clamping structure comprises a reference plate 25 arranged at one end of the installation base plate 21 in the width direction, and a clamping plate 26 slidably connected to the other end of the installation base plate 21 in the width direction, and the opening and closing mechanism 40 is power-connected to the clamping plate 26 to drive the clamping plate 26 to slide relative to the reference plate 25.

[0043] In one embodiment, the clamping structure comprises a pair of clamping plates 26 arranged in the width direction of the installation base plate 21, and the opening and closing mechanism 40 is power-connected to the clamping plates 26 to drive the pair of clamping plates 26 to slide. In this embodiment, the pair of clamping plates 26 can both slide to open and close, so that the opening and closing stroke of each sliding plate can be relatively shortened.

[0044] The installation base plate 21 is further provided with a limiting protrusion 28, a pushing protrusion 281, and a sliding guide column 282. The limiting protrusion 28 is fixed on the installation base plate 21, the sliding guide column 282 slides through the limiting protrusion 28 in the length direction of the installation base plate 21, one end of the sliding guide column 282 is fixedly connected to the clamping plate 26, the other end is fixedly connected to the pushing protrusion 281, and a compression spring is further arranged between the limiting protrusion 28 and the clamping plate 26.

[0045] The opening and closing mechanism 40 further comprises a pushing device 42, each of which comprises a pushing plug 423 and a pushing cylinder 421, one side of the pushing plug 423 abuts against one side of the pushing protrusion 281 close to the clamping plate 26.

[0046] Hereinafter, the top cover coding conveying device will be described in detail with reference to one specific embodiment:

[0047] A top cover coding conveying device, as shown in Figures 1-2 includes a rack 10, a plurality of conveying belts 12 rotatably sleeved on the rack, and a power source mechanism for driving the plurality of conveying belts 12 to operate. The top cover coding conveying device is mainly used for conveying the top cover of a lithium battery for coding. It sequentially includes a plurality of stations such as feeding, coding, scanning, and discharging along the conveying direction, so a plurality of conveying jigs 20 for placing the top cover are arranged on the plurality of conveying belts, and a positioning mechanism 30 is arranged at each station.

[0048] The rack 10 is in a frame structure, and two ends thereof in horizontal direction are rotatably connected with a transmission shaft 13, and three transmission wheels 14 are fixedly sleeved on each transmission shaft 13, and three conveying belts 12 are sleeved on the three pairs of transmission wheels 14. Moreover, the power source mechanism comprises a power motor 11, and the power motor 11 is power-connected with one of the transmission shafts 13 through a synchronous belt 15, so as to drive the three sets of conveying belts 12 to realize synchronous movement. In the embodiment, the power motor 11 is arranged at one end of the rack 10 close to the unloading station.

[0049] As shown in Figures 1-3 , the conveying jig 20 comprises a mounting bottom plate 21, and one pair of movement rollers 212 is arranged at each side of the mounting bottom plate 21, and one of the three conveying belts 12 is slightly wider in the middle, and the middle part of the mounting bottom plate 21 is placed on the conveying belt in the middle, and the other two conveying belts are slightly narrower, and the two pairs of movement rollers 212 are respectively in rolling abutment with the two conveying belts 12 corresponding in position, and when the three conveying belts 12 move synchronously, the conveying jig 20 can be driven to move, and when the positioning mechanism 30 clamps and positions the conveying jig 20 at each station for temporary stay, the two pairs of movement rollers 212 and the two conveying belts are in rolling, and the friction between the conveying jig 20 and the conveying belt 12 in the middle is also reduced.

[0050] As shown in Figures 3-4 , a pair of positioning plates 23 are fixedly arranged on one side of the mounting bottom plate 21 in length direction, and a pair of centering plates 24 are correspondingly arranged on the other side in length direction, and the centering plates 24 can slide open and close relative to the positioning plates 23; in addition, a reference plate 25 is fixedly arranged on the end of the mounting bottom plate 21 in short side direction, and a clamping plate 26 is correspondingly arranged on the other end in short side direction, and the clamping plate 26 can slide open and close relative to the reference plate 25. The mounting area surrounded by the pair of centering plates 24, the pair of positioning plates 23, the reference plate 25 and the clamping plate 26 is used for placing the top cover, and since the centering plate 24 and the clamping plate 26 can slide open and close in length direction and width direction respectively, the top cover is more easily taken and placed when being unloaded and loaded.

[0051] Specifically, one mounting block 22 is arranged at each of the two ends of the length direction of the mounting base plate 21, and meanwhile, two slide rails 211 arranged along the short direction are fixed at the two ends of the upper surface of the mounting base plate 21, each mounting block 22 is slidingly connected to one slide rail 211, that is, the pair of mounting blocks 22 can slide along the short direction of the mounting base plate 21, and meanwhile, the pair of centering plates 24 are fixed to the two different mounting blocks 22, so that the mounting blocks 22 and the centering plates 24 realize synchronous sliding opening and closing. Two fixing blocks are further fixed on the mounting base plate 21, and a spring is arranged between each fixing block and the corresponding mounting block 22, the spring exerts a pulling force on the mounting block 22, which is used for resetting after the pair of centering plates are opened and closed when the cover is fed upward or downward. That is, by means of the cooperation of the slide groove arranged at the bottom of the mounting block 22 and the slide rail 211, and the resetting effect of the spring, the unidirectional extension and contraction of the mounting block 22 on the mounting base plate 21 can be realized.

[0052] As shown in the figure, the two mounting blocks 22 are provided with a horizontal bearing 27 at the side close to the end of the length direction of the mounting base plate 21. When the horizontal bearing 27 is subjected to an external force, the mounting block 22 and the centering plate 24 are driven to move synchronously, so as to realize opening and closing, and after the external force is removed, the pulling force of the spring drives the mounting block 22 to reset, at this time, the centering plate 24 and the positioning plate 23 realize the centering and clamping effect of the cover in the width direction of the mounting base plate 21.

[0053] As shown in the figure, Figures 3-4 A limiting protrusion 28 is further fixed on the mounting base plate 21, the limiting protrusion 28 is located at the end of the mounting base plate 21 and opposite to the reference plate 25, two sliding guide columns 282 arranged along the length direction of the mounting base plate 21 are slidingly arranged in the limiting protrusion 28, one end of the sliding guide column 282 is fixedly connected to the clamping plate 26, and the other end of the sliding guide column 282 is fixedly connected to a pushing protrusion 281, when the pushing protrusion 281 is subjected to an external force, the clamping plate 26 is driven to move away from the reference plate 25 to realize opening and closing. Meanwhile, a compression spring is sleeved on each of the two sliding guide columns 282, one end of the compression spring abuts against the side wall of the limiting protrusion 28, and the other end of the compression spring abuts against the clamping plate 26, so that after the external force is removed, the pair of compression springs drive the clamping plate 26 to slide towards the reference plate 25 until the clamping plate 26 is reset, at this time, the clamping plate 26 and the reference plate 25 realize the centering and clamping effect of the cover in the length direction.

[0054] As shown in the figure, Figure 1 and 5As shown in Figure 6, since the transport fixture 20 transports the top cover on the frame 10, it will pass through multiple workstations and be processed at multiple different equipment. Therefore, the positioning mechanism 30 needs to temporarily fix the transport fixture 20 at each workstation for a period of time. Specifically, the positioning mechanism 30 includes a positioning device 31 for controlling positioning and releasing positioning, and a positioning cylinder 32 for driving the positioning device 31 to extend and retract. The positioning device 31 is fixedly connected to the ends of the three telescopic rods 33 of the positioning cylinder 32, and the extension and retraction direction of the positioning cylinder 32 is perpendicular to the conveying direction of the three conveyor belts 12. The positioning device 31 and the positioning cylinder 32 are arranged in pairs along both sides of the three conveyor belts 12.

[0055] The positioning device 31 includes a positioning block 311 and a limiting wheel 312 located below the positioning block 311. Under the push of the positioning cylinder 32, the limiting wheel 312 moves forward and slides into the V-shaped stop grooves 29 on both sides of the mounting base plate 21 of the transport fixture 20. Thus, when a pair of positioning devices 31 move towards each other, they can briefly clamp and fix the transport fixture 20, so that the transport fixture 20 stays at the corresponding work station until the processing is completed.

[0056] In addition, considering that the transport fixture 20 only needs to open and close at the loading and unloading stations to pick up and put down the top cover, a pair of opening and closing mechanisms 40 are also provided on the frame at the loading and unloading stations, located on both sides of the conveyor belt 12. Each opening and closing mechanism 40 includes an outwardly extending wedge block 41 fixedly connected to the positioning block 311. The extension direction of the wedge block 41 is perpendicular to the three conveyor belts 12 and can approach the transport fixture 20.

[0057] When the positioning mechanism 30 fixes the transport fixture 20, the wedge block 41 gradually approaches the horizontal bearing 27 under the push of the positioning cylinder 32. The inclined side of the wedge block 41 will generate a component force acting on the horizontal bearing 27 along the bottom slide rail of the mounting block 22, so that the mounting block 22 and the centering plate 24 slide along the slide rail, so that the pair of centering plates 24 of the transport fixture 20 open, which facilitates the loading of materials.

[0058] At the same time, such as Figures 1-2 As shown in Figure 6, the opening and closing mechanism 40 also includes a toggle device 42 that is only provided on one side of the frame. Each toggle device 42 includes a toggle cylinder 421 fixed on the frame and a toggle plate 422 fixedly connected to the telescopic end of the toggle cylinder 421. The bottom of the toggle plate 422 extends downward to form a toggle tongue 423, and the toggle tongue 423 abuts against the side of the toggle protrusion 281 near the reference plate 25.

[0059] In another embodiment, two transport jigs 20 are grouped together, then the corresponding limit rotating wheels 312 of each positioning mechanism 30 are also grouped together, the wedge-shaped blocks 41 of each opening and closing mechanism 40 are also grouped together, and the poking tongues 423 of each poking device 42 are also grouped together, so as to adapt the structures. Of course, if more transport jigs 20 are grouped together for transportation, the above structures can also be adjusted in number to match.

[0060] In summary, when the power motor 11 in the power source mechanism drives the transmission shaft 13 through the synchronous belt 15, drives the three transmission belts 12 to start running, and the moving rotating wheels 212 on both sides of the transport jig 20 are in contact with the slightly narrower transmission belt 12, and start to run along the rack 10 under the drive of the transmission belt 12. There is an infrared sensor 16 at the positioning mechanism 30, when the infrared sensor 16 senses that the transport jig 20 is in the loading area, the positioning cylinder 32 on both sides of the positioning mechanism 30 will push the limit rotating wheel 312 to slide into the V-shaped stop groove 29 on both sides of the mounting bottom plate 21 of the transport jig 20 for fixation. At the same time, the wedge-shaped block 41 is driven by the positioning cylinder 32 on both sides of the positioning mechanism 30 to start to push inward with the inclined edge perpendicular to the horizontal bearing 27, so as to generate a force along the sliding rail 211 on the horizontal bearing 27, so that the centering plate 24 on the transport jig 20 is opened. At the same time, the poking cylinder 421 starts to shrink inward, and the poking tongue 423 pushes the clamping plate 26 on the transport jig 20 to move outward, so that the clamping plate 26 is opened outward. At this time, the top cover is installed on the center of the mounting bottom plate 21 by mechanical loading or manual loading.

[0061] When the loading is completed, the positioning cylinder 32 on both sides of the positioning mechanism 30 is retracted inward at the same time, the centering plate 24 is pulled by the spring at the same time, and the positioning plate 23 is cooperated to laterally clamp the top cover. At the same time, the poking cylinder 421 starts to shrink inward, the poking tongue 423 is no longer in contact with the poking protrusion 281, and the clamping plate 26 starts to shrink inward under the stretching of the spring, and cooperates with the 25 reference plate to clamp the top cover along the long edge direction of the mounting bottom plate 21.

[0062] Subsequently, the limit rotating wheel 312 slides out of the V-shaped stop groove 29 under the contraction of the positioning cylinder 32 of the positioning mechanism on both sides, and the transport jig 20 is driven by the transmission belt 14 to run to the coding area again. When the transport jig 20 is in the sensing of the infrared sensor 16 located in the coding area, the positioning cylinder 32 in the positioning mechanism 30 on both sides starts to push the limit rotating wheel 312 to slide into the V-shaped stop groove 29 on both sides of the transport jig 20, so that the transport jig 20 temporarily stays in the coding area.

[0063] When the coding device (not shown in the figure) codes, the upper surface of the top cover needs to be at a uniform height to focus, so a plurality of leveling springs are arranged in the area where the top cover is placed on the mounting base 21. After the top cover is placed, it is buckled on the plurality of leveling springs, and then the coding device uses a pressing plate to press downward vertically on the top cover to a certain height. At this time, the leveling springs in the center of the mounting base 21 of the transport fixture 20 have different deformation amounts under the compression of the pressing plate. The adjustment is made so that the upper surface of the top cover is attached to the bottom surface of the pressing plate, meeting the height requirement of coding.

[0064] After coding is completed, the positioning cylinders 32 on both sides of the transport fixture 20 are retracted, and the limiting rotating wheels 312 slide out of the V-shaped stop groove 29 to release the fixation of the transport fixture 20. At the same time, under the driving of the power source mechanism, the transport fixture 20 runs along the rack 10, and when it reaches the code scanning area, the infrared sensor 16 senses the transport fixture 20, and the code scanning device (not shown in the figure) is started to detect whether the coded top cover can clearly present information. If the information is incorrect, the code scanning device will report an error; if the information can be clearly presented correctly, the transport fixture 20 continues to flow to the unloading area under the driving of the power source mechanism.

[0065] When the infrared sensor 16 in the unloading area successfully senses the transport fixture 20, the electrical signal controls the positioning cylinders 32 on both sides of the positioning mechanism 30 to push the limiting rotating wheels 312 to slide into the V-shaped stop groove 29 for fixation. At the same time, the wedge-shaped blocks 41 are driven by the positioning cylinders 32 to start to push inward with the oblique edge perpendicular to the horizontal bearing 37, generating a force on the horizontal bearing 37 in the direction of the slide rail, so that the centering plate 24 on the transport fixture 20 opens. At this time, the toggle cylinders 421 start to contract inward, and the toggle protrusions 281 move outward by using the toggle tongues 423, so that the clamping plates 26 open outward. At this time, the top cover that has been coded and successfully detected is unloaded by manual or mechanical means, and the coding and conveying of the top cover and the coding and detection work are finally completed. The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A top cover coding conveying device, comprising a conveying unit and a transport fixture, characterized in that the transport fixture comprises a mounting base placed on the conveying unit, the mounting base is provided with a centering structure along a length direction and a clamping structure along a width direction, the centering structure and the clamping structure surround a mounting area for placing the top cover; the conveying unit comprises: a positioning mechanism in abutting cooperation with the mounting base to fix the mounting base; an opening and closing mechanism in power connection with the centering structure and the clamping structure to drive the centering structure and the clamping structure to open and close respectively; a power mechanism connected with the positioning mechanism and the opening and closing mechanism and driving the positioning mechanism and the opening and closing mechanism to move close to or away from the mounting base synchronously; the centering structure comprises a positioning plate fixed to one side of the mounting base along the length direction and a centering plate slidingly connected to the other side of the mounting base along the length direction, the opening and closing mechanism is in power connection with the centering plate to drive the centering plate to slide relative to the positioning plate to open and close; the mounting base is further provided with a sliding rail, a mounting block and a fixing block, the mounting block is slidingly connected to the sliding rail, and the fixing block is provided between the mounting block and the fixing block and is provided with a spring driving the mounting block to move close to the fixing block; one side of each mounting block is fixedly connected with a horizontal bearing, and the other end is fixedly connected with a centering plate, the opening and closing mechanism comprises a wedge-shaped block, the extension direction of the wedge-shaped block is perpendicular to the mounting direction of the sliding rail, and the inclined edge of the wedge-shaped block is in abutment with the peripheral surface of the horizontal bearing, or the two inclined edges of one wedge-shaped block are in abutment with the peripheral surfaces of two horizontal bearings respectively. The centering structure comprises at least one pair of centering plates arranged along the length direction of the mounting base, and each pair of centering plates is distributed on both sides of the mounting area, and the opening and closing mechanism is in power connection with the centering plates to drive each pair of centering plates to slide to open and close. The positioning mechanism comprises a positioning device and a limiting rotating wheel fixedly connected with the positioning device, both sides of the mounting base are provided with V-shaped stop grooves, and the power mechanism is fixed with the positioning device and drives the limiting rotating wheel to be inserted and matched in the V-shaped stop grooves. The power mechanism is a positioning cylinder fixed to the conveying unit, the extension end of the positioning cylinder is fixedly connected with the positioning device, the positioning device is fixedly provided with a positioning block, and the wedge-shaped block and the limiting rotating wheel are fixed to the same side of the positioning block. The clamping structure comprises a reference plate arranged at one end along the width direction of the mounting base and a clamping plate slidingly connected to the other end along the width direction of the mounting base, and the opening and closing mechanism is in power connection with the clamping plate to drive the clamping plate to slide relative to the reference plate to open and close. The clamping structure comprises a pair of clamping plates arranged along the width direction of the mounting base, and the opening and closing mechanism is in power connection with the clamping plates to drive a pair of clamping plates to slide to open and close. ​ ​ 2. The top capping coding conveyor as claimed in claim 1 wherein, ​ 3. The top capping coding conveyor as claimed in claim 1 wherein, ​ 4. The top capping coding conveyor as claimed in claim 3 wherein, ​ 5. The top capping coding conveyor apparatus as claimed in claim 1 wherein, ​ 6. The top capping coding conveyor apparatus as claimed in claim 1 wherein, ​ 7. A top capping coding conveyor as claimed in claim 5 or 6, wherein, The mounting base is further provided with a limiting protrusion, a pushing protrusion and a sliding guide column, the limiting protrusion is fixed on the mounting base, the sliding guide column is slidably arranged in the limiting protrusion along the length direction of the mounting base, one end of the sliding guide column is fixedly connected with the clamping plate, the other end of the sliding guide column is fixedly connected with the pushing protrusion, and a compression spring is further arranged between the limiting protrusion and the clamping plate. The opening and closing mechanism further comprises a pushing device, each of the pushing devices comprises a pushing plug and a pushing cylinder, and one side of the pushing plug is in abutment with one side of the pushing protrusion close to the clamping plate.

8. The top capping coding conveyor apparatus as claimed in claim 1 wherein, The conveying unit comprises a rack and a conveying belt, and the power mechanism comprises positioning cylinders fixed on both sides of the rack, and the extension and retraction directions of the extension rods of the positioning cylinders are perpendicular to the conveying direction of the conveying belt.

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