Lithium battery drying line

Abstract

The present invention discloses a lithium battery drying line, comprising: a baking device, the baking device comprises a plurality of baking boxes arranged in parallel, and a clamp is arranged in the baking box; a tray transfer device, arranged at one side of the baking device, the tray transfer device comprises a tray output line; a battery transfer device, the battery transfer device comprises a moving track and a plurality of transport carts, the transport carts are provided with a fixture station and a tray station, the fixture station is provided with a fixture push-pull assembly, the fixture station and the tray station are provided with a transport assembly above, and the fixture push-pull assembly is detachably connected to the fixture; a loading device; and a unloading device. In the lithium battery drying line described in the present invention, the movement of lithium batteries uses the tray as a carrier, which shortens the time for the fixture to leave the baking box, reduces the heat loss in the process of the fixture leaving the baking box, and further shortens the time for the fixture temperature to rise back to the temperature in the baking box, reduces the time for the lithium battery drying to be dried, and improves the drying efficiency of the lithium battery.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery processing, and in particular to a lithium battery drying line. Background Art

[0002] Moisture has a very important impact on the performance of lithium batteries. Before filling the lithium batteries, the lithium batteries need to be dried to eliminate the moisture in the lithium batteries.

[0003] The lithium battery baking equipment in the related technology uses a loader to transport the lithium battery to the clamp, and then places the clamp in a baking oven for baking. After baking, a unloader is used to transport the lithium battery from the clamp. The entire process uses the clamp as a mobile carrier for the lithium battery. The clamp takes a long time to be separated from the baking oven, so the clamp needs to be reheated each time it enters the baking oven, and the lithium battery drying time is long. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. The present invention provides a lithium battery drying line, which uses a tray to transport the lithium battery to the side of a baking oven, and uses a battery transfer device to realize the transfer of the lithium battery between the clamp and the tray, thereby shortening the time for the clamp to leave the baking oven, reducing the heat loss when the clamp leaves the baking oven, and allowing the clamp to quickly return to the baking temperature after entering the baking oven again, thereby reducing the drying time of the lithium battery.

[0005] A lithium battery drying line provided according to an embodiment of the present invention comprises:

[0006] A baking device, the baking device comprising a plurality of baking boxes arranged in parallel, wherein a clamp is provided in the baking box;

[0007] A tray transfer device is arranged on one side of the baking device, and the tray transfer device includes a tray output line;

[0008] The battery transfer device is arranged on one side of the baking device and above the tray output line. The battery transfer device includes a moving track and a plurality of transport carts. The moving track is arranged on the side of the baking device and is used to drive the transport cart to move. The transport cart is provided with a fixture station and a tray station. The fixture station and the tray station are arranged along the extension direction of the moving track. The fixture station is provided with a fixture push-pull assembly. A transport assembly is provided above the fixture station and the tray station. The fixture push-pull assembly is used to drive the fixture to reciprocate between the baking box and the fixture station. The tray can move along the tray output line to the bottom of the tray station. The transport assembly can reciprocate between the fixture station and the tray station.

[0009] A feeding device, arranged at the front end of the tray transfer device, for conveying unbaked lithium batteries to the empty tray on the tray transfer device;

[0010] The unloading device is arranged at the rear end of the tray transfer device and is used for unloading the tray carrying the dried lithium batteries on the tray transfer device.

[0011] The lithium battery drying line described in the present invention has at least the following beneficial effects: the loading device can load undried lithium batteries on the tray, the baking box is provided with a clamp, the clamp push-pull assembly can pull the clamp in the baking box to the clamp station, the tray output line transports the empty tray to the bottom of the tray station, the transport assembly transports the dried lithium batteries on the clamp to the empty tray, the tray output line then transports the tray carrying the dried lithium batteries to the unloading device for unloading, and then transports the tray carrying the undried lithium batteries to the bottom of the tray station, the transport assembly transports the undried lithium batteries on the tray to the clamp, and the clamp push-pull assembly pushes the clamp into the baking box. During the entire drying process of the lithium battery, the movement of the lithium battery uses the tray as a carrier, shortening the time for the clamp to leave the baking box, reducing the heat loss during the process of the clamp leaving the baking box, and thus shortening the time for the clamp temperature to rise to the temperature in the baking box, reducing the time for the lithium battery to dry, and improving the drying efficiency of the lithium battery.

[0012] According to the lithium battery drying line described in some embodiments of the present invention, the tray transfer device also includes a tray return line, which is arranged above the baking device and is used to transport the tray from the tail end of the tray output line back to the head end of the tray output line. By setting the tray return line, the empty tray can be transported from the tail end of the tray output line back to the head end of the tray output line, thereby realizing the circulation of the tray in the tray transfer device.

[0013] According to the lithium battery drying line described in some embodiments of the present invention, the pallet transfer device also includes a first transfer platform and a second transfer platform. The tail end of the pallet return line is connected to the head end of the pallet output line through the first transfer platform. The first transfer platform can transfer the pallet from the tail end of the pallet return line to the head end of the pallet output line. The tail end of the pallet output line is connected to the head end of the pallet return line through the second transfer platform. The second transfer platform can transfer the pallet from the tail end of the pallet output line to the head end of the pallet return line. By providing the first transfer platform and the second transfer platform, the transfer of the pallet between the pallet output line and the pallet return line can be realized, thereby realizing the complete circulation of the pallet in the pallet transfer device.

[0014] The lithium battery drying line according to some embodiments of the present invention further includes a cooling device, which is arranged between the second transfer platform and the unloading device. The cooling device includes a first conveyor line for cooling the battery and a second conveyor line for reflowing the pallet, and the first conveyor line is located above the second conveyor line. The pallet carrying the dried lithium battery on the pallet output line can be transferred to the first conveyor line through the second transfer platform. The cooling device cools the lithium battery on the pallet during the process of conveying the pallet on the first conveyor line. The first conveyor line conveys the pallet to the unloading device for unloading the lithium battery. The empty pallet after unloading is transported back to the second transfer platform via the second conveyor line.

[0015] According to the lithium battery drying line described in some embodiments of the present invention, a plurality of fans are arranged above the first conveying line, and the direction of the fans is consistent with the conveying direction of the first conveying line. The fans are low in cost and easy to install.

[0016] According to the lithium battery drying line described in some embodiments of the present invention, the transport assembly includes a lifting cylinder and a picking mechanism, the picking mechanism is connected to the telescopic rod of the lifting cylinder, a first guide rail is provided above both the pallet station and the fixture station, the extension direction of the first guide rail is consistent with the extension direction of the moving track, the lifting cylinder is slidably arranged on the transport trolley through the first guide rail, and the lifting cylinder can reciprocate along the first guide rail directly above the fixture station and the pallet station.

[0017] According to some embodiments of the present invention, the lithium battery drying line comprises a plurality of grippers, which can be lifted and lowered by a lifting cylinder to pick up or put down the lithium battery. The grippers have a simple structure and are easy to implement.

[0018] According to the lithium battery drying line described in some embodiments of the present invention, the clamp and the baking oven are connected by a hollow folding rod, and the folding rod is provided with a wire that conducts the baking oven and the clamp. The clamp and the baking oven are electrically connected by the wire, and the wire connection is stable and reliable, which can avoid vacuum discharge; the wire is arranged in the hollow folding rod, and the folding rod can protect the wire, and the folding rod can be stretched, so that the clamp can leave the baking oven under the action of the clamp push-pull assembly.

[0019] According to some embodiments of the present invention, the lithium battery drying line further includes a maintenance platform, which is arranged in parallel with the baking box. Through the fixture push-pull assembly, the transport trolley can transport the faulty fixture to the maintenance platform. By setting up the maintenance platform, the transport trolley can transport the faulty fixture to the maintenance platform for maintenance, thereby preventing the faulty fixture from affecting the operation of the entire lithium battery drying line.

[0020] According to some embodiments of the present invention, the lithium battery drying line has two sets of baking devices and maintenance platforms, which are respectively arranged on both sides of the battery transfer device. By providing two sets of baking devices and maintenance platforms, the working efficiency of the lithium battery drying line is further improved.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0023] Figure 1 This is a schematic structural diagram of a lithium battery drying line according to an embodiment of the present invention;

[0024] Figure 2 for Figure 1 The schematic diagram of the assembly of the fixture and baking oven of the lithium battery drying line shown;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure of a battery transfer device of a lithium battery drying line shown;

[0026] Figure 4 for Figure 3 A view of the battery transfer device shown;

[0027] Figure 5 for Figure 1 A schematic diagram of the structure of a cooling device for a lithium battery drying line is shown;

[0028] Figure 6 for Figure 5 A cross-sectional view of the cooling device shown;

[0029] Figure 7 for Figure 1 The structural schematic diagram of the feeding device of the lithium battery drying line shown;

[0030] Figure 8 for Figure 1 The schematic diagram of the assembly of the cooling device and the unloading device of the lithium battery drying box is shown.

[0031] Reference numerals:

[0032] Baking device 100; baking box 110; clamp 120; folding rod 130;

[0033] Tray output line 200; tray return line 210; first transfer platform 220; second transfer platform 230;

[0034] Battery transfer device 300; moving track 310; transport trolley 320; fixture station 321; tray station 322; lifting cylinder 323; picking mechanism 324; first guide rail 325;

[0035] Feeding device 400; conveyor belt 410; feeding assembly 420;

[0036] Unloading device 500; lifting platform 510; storage platform 520; first transfer mechanism 530; second transfer mechanism 540;

[0037] Cooling device 600; first conveying line 610; second conveying line 620; fan 630;

[0038] Maintenance platform 700. DETAILED DESCRIPTION

[0039] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] Reference below Figures 1 to 8 The lithium battery drying line of the present invention is described in detail.

[0044] Reference Figure 1The lithium battery drying line according to the embodiment of the present invention includes a baking device 100, a battery transfer device 300, a tray loading and moving device, a loading device 400 and a unloading device 500.

[0045] The baking device 100 includes a plurality of baking boxes 110 arranged in parallel, and a fixture 120 is arranged in the baking box 110; a tray transfer device is arranged at one side of the baking device 100, and the tray transfer device includes a tray output line 200; a battery transfer device 300 is arranged at one side of the baking device 100, and the battery transfer device 300 includes a moving track 310 and a plurality of transport carts 320, and the moving track 310 is arranged at the side of the baking device 100, and the transport cart 320 can move along the moving track 310, and a fixture station 321 and a tray station 322 are arranged on the transport cart 320, and the fixture station 321 and the tray station 322 are arranged along the extension direction of the moving track 310. A clamp push-pull assembly is provided on the clamp station 321, and a conveying assembly is provided above the clamp station 321 and the tray station 322. The clamp push-pull assembly is used to drive the clamp 120 to reciprocate between the baking oven 110 and the clamp station 321, and the tray can move to the bottom of the tray station 322 along the tray output line 200, and the conveying assembly can reciprocate between the clamp station 321 and the tray station 322; the loading device 400 is provided at the front end of the tray transfer device, and is used to convey unbaked lithium batteries to the empty tray on the tray transfer device; the unloading device 500 is provided at the rear end of the tray transfer device, and is used to unload the tray carrying dried lithium batteries on the tray transfer.

[0046] For example, Figure 1 , Figure 3 and Figure 4As shown, the baking device 100 includes a plurality of baking boxes 110 arranged in parallel along the front-to-back direction, each baking box 110 is installed with a clamp 120, and the clamp 120 can be slidably installed in the baking box 110; on the left side of the baking device 100, a battery transfer device 300 is provided, and the battery transfer device 300 may include a moving track 310 and a plurality of transport carts 320, the moving track 310 extends along the front-to-back direction, the transport cart 320 is slidably installed on the moving track 310, and the transport cart 320 can move along the moving track 310. 10 moves forward and backward to correspond to each baking oven 110, a fixture station 321 and a tray station 322 are provided on the transport trolley 320, the tray station 322 can be located in front of the fixture station 321, a fixture push-pull assembly is installed on the fixture station 321, and a transport assembly is installed above the tray station 322 and the fixture station 321, that is, when the transport trolley 320 moves to a baking oven 110, the fixture push-pull assembly can be automatically connected with the fixture 120 of this baking oven 110, when the transport trolley 320 needs to be away from this baking oven When the baking device 100 is moved to the left side and the moving track 310 is lowered, the clamp push-pull assembly can be automatically disconnected from the clamp 120 of the baking oven 110, and the transport assembly can reciprocate between the tray station 322 and the clamp station 321, so as to realize the transfer of the lithium battery between the clamp on the clamp station 321 and the tray under the tray station 322; the tray transfer device includes a tray output line 200, which can be located on the left side of the baking device 100 and under the moving track 310, and the tray output line 200 can be extended forward and backward, and the tray output line 200 can be The transport pallet is moved to the bottom of the pallet station 322; the loading device 400 can be arranged at the front end of the pallet transfer device, and the loading device 400 can be connected to the head end of the pallet output line 200, and the loading device 400 can install undried lithium batteries on the empty pallet on the pallet output line 200; the unloading device 500 can be arranged at the rear end of the pallet transfer device, and the unloading device 500 can be connected to the tail end of the pallet output line 200, and the unloading device 500 can unload the pallet carrying dried lithium batteries on the pallet output line 200.

[0047] The working process of the lithium battery drying line of the embodiment of the present invention is as follows: the moving track 310 drives the transport trolley 320 to align with the baking oven 110 that has completed the lithium battery drying work, the tray output line 200 transports the empty tray to the bottom of the tray station 322, the fixture push-pull assembly pulls the fixture 120 in the baking oven 110 to the fixture station 321, the transport assembly moves to the top of the fixture station 321, and transports the dried lithium battery in the fixture 120 to the empty tray under the tray station 322; the tray output line 200 drives the tray carrying the dried lithium battery to move To the unloading device 500, the tray output line 200 drives the tray carrying undried lithium batteries to move to the bottom of the tray station 322, the transport component transports the undried lithium batteries on the tray to the fixture 120, the fixture push-pull assembly pushes the fixture 120 back to the baking oven 110, and the baking oven 110 bakes the lithium batteries on the fixture 120; wherein, the loading device 400 can load undried lithium batteries to the empty tray on the tray output line 200, and the unloading device 500 can unload the tray carrying dried lithium batteries on the tray output line 200.

[0048] During the operation of the lithium battery drying line, the clamp 120 can move between the baking oven 110 and the clamp station 321. The loading and moving of the lithium battery relies on the tray as a carrier. The time for the clamp 120 to leave the baking oven 110 is short, and the heat loss of the clamp 120 itself is small, which saves energy and improves the drying speed of the lithium battery. By using the tray as a carrier for the movement of the lithium battery, the tray can move the loaded lithium battery to the bottom of the tray station 322 in advance, saving time and thus improving the overall processing efficiency of the lithium battery drying line. The tray station 322 and the clamp station 321 are distributed front and back, which is consistent with the extension direction of the moving track 310, reducing the length of the lithium battery drying line in the left and right direction and saving space. The tray output line 200 is arranged below the moving track 310, and the tray output line 200 and the moving track 310 both extend in the front and back direction, utilizing the space below the moving track 310, reducing the volume of the lithium battery drying line and saving space.

[0049] Specifically, Figure 7As shown, the loading device 400 includes a conveyor belt 410 and a loading assembly 420, and the loading assembly 420 includes a second guide rail, a first cylinder and a first grabbing head. One end of the second guide rail extends to the tail end of the conveyor belt 410, and the other end of the second guide rail extends to the head end of the pallet output line 200. The first cylinder is installed on the second guide rail, and the first cylinder can reciprocate along the second guide rail between the conveyor belt 410 and the pallet output line 200. The first grabbing head is connected to the telescopic rod of the first cylinder, and under the drive of the first cylinder, the first grabbing head can perform lifting movements. When the loading device 400 is working, the conveyor belt 410 can convey lithium batteries. The first cylinder moves to the tail end of the conveyor belt 410 through the second guide rail, and the first cylinder drives the first grabbing head to perform lifting movement to grab the lithium batteries on the conveyor belt 410. Then, the first cylinder moves to the head end of the pallet output line 200 through the second guide rail, and the first cylinder drives the first grabbing head to descend to place the lithium batteries grabbed by the first grabbing head on the empty pallet of the pallet output line 200 at one time.

[0050] Optionally, a lifting mechanism may be provided between the loading assembly and the tray output line 200. At this time, the loading assembly conveys the lithium batteries on the conveyor belt 410 to the tray on the lifting mechanism. The lifting mechanism can drive the tray to do lifting movement so that the height of the tray is consistent with the tray output line 200, and then the lifting mechanism drives the tray to be transferred to the tray output line 200. By providing a lifting mechanism, the lithium batteries can be transferred between the conveyor belt 410 and the tray output line 200 at different heights.

[0051] Specifically, the clamp push-pull assembly includes a gear rack structure and a push-pull frame. The rack is provided at the clamp station 321 and extends in the left-right direction. The push-pull frame is installed on the rack through a gear. A telescopic member is provided on the push-pull frame, and a connecting hole corresponding to the telescopic member is provided on the clamp 120. When the clamp push-pull assembly needs to pull out the clamp 120, the push-pull frame approaches the clamp 120 through the gear rack structure, the telescopic member extends into the connecting hole, and the clamp push-pull assembly is connected to the clamp 120; when the clamp push-pull assembly pushes the clamp 120 into the baking oven 110, the telescopic member retracts from the connecting hole, and the connection between the clamp push-pull assembly and the clamp 120 is disconnected. The detachable connection between the clamp push-pull assembly and the clamp 120 is achieved through the detachable cooperation between the telescopic member and the connecting hole.

[0052] In some embodiments of the present invention, the tray transfer device further includes a tray return line 210, which is disposed above the baking device 100 and is used to transport the trays at the tail end of the tray output line 200 back to the head end of the tray output line 200. Figure 1As shown, a tray return line 210 is provided above the baking device 100, and the tray return line 210 can be extended in the front-to-back direction. By providing the tray return line 210, the empty trays at the rear end of the tray output line 200 can be returned to the front end of the tray output line 200 through the tray return line 210, and the loading device 400 can load the empty trays at the front end of the tray output line 200, thereby realizing the circulation of the trays; at the same time, the tray return line 210 is provided in the empty area above the baking device 100, making full use of the space.

[0053] Furthermore, the pallet transfer device further includes a first transfer platform 220 and a second transfer platform 230. The tail end of the pallet return line 210 is connected to the head end of the pallet output line 200 via the first transfer platform 220. The first transfer platform 220 can transfer the pallet at the tail end of the pallet return line 210 to the head end of the pallet output line 200. The tail end of the pallet output line 200 is connected to the head end of the pallet return line 210 via the second transfer platform 230. The second transfer platform 230 can transfer the pallet at the tail end of the pallet output line 200 to the head end of the pallet return line 210. For example, Figure 1 As shown, the tray output line 200 is arranged at one side of the baking device 100, the tray return line 210 is arranged above the baking device 100, the first transfer platform 220 can be arranged in front of the battery transfer device 300, and the head end of the tray output line 200 and the tail end of the tray return line 210 are connected through the first transfer platform 220; the second loading and moving platform can be arranged behind the battery transfer device 300, and the tail end of the tray output line 200 and the head end of the tray return line 210 are connected through the second transfer platform 230. By setting the first transfer platform 220 and the second transfer platform 230, the tray can be transferred from the tail end of the tray output line 200 to the head end of the tray return line 210, and the tray can be transferred from the tail end of the tray return line 210 to the head end of the tray output line 200, thereby realizing a complete cycle of the trays in the lithium battery drying line.

[0054] Specifically, the first transfer platform 220 may include a first frame, a first motor, a second motor and a first movable guide rail, wherein the first motor and the second motor are both mounted on the first frame, and the first frame is provided with a first movable guide rail extending left and right, and the first movable guide rail can slide left and right under the drive of the first motor, and can move up and down under the drive of the second motor. When the first movable guide rail is connected to the rear end of the pallet return line 210, and the pallet return line 210 transports an empty pallet to the first movable guide rail, the second motor can drive the first movable guide rail to descend so that the first movable guide rail is flush with the pallet output line 200, and the first motor can drive the first movable guide rail to move left so that the first movable guide rail is connected to the pallet output line 200, and then the first movable guide rail can transport the empty pallet to the pallet output line 200.

[0055] Specifically, the second transfer platform 230 may include a second frame, a third motor, a fourth motor and a second movable guide rail, the third motor and the fourth motor are both mounted on the second frame, the second frame is provided with a second movable guide rail extending left and right, the second movable guide rail can slide left and right under the drive of the third motor, and the second movable guide rail can move up and down under the drive of the fourth motor. When the second movable guide rail is connected to the rear end of the pallet output line 200, and the pallet output line 200 transports the empty pallet to the second movable guide rail, the fourth motor can drive the second movable guide rail to rise so that the second movable guide rail is flush with the pallet return line 210, the third motor can drive the first movable guide rail to move right so that the second movable guide rail is connected to the pallet return line 210, and the second movable guide rail transports the empty pallet to the pallet return line 210.

[0056] In some embodiments of the present invention, the lithium battery drying line further includes a cooling device 600, which is disposed between the second transfer platform 230 and the unloading device 500. The cooling device 600 includes a first conveyor line 610 for cooling the battery and a second conveyor line 620 for reflowing the tray. The first conveyor line 610 is located above the second conveyor line 620. For example, Figure 1 , Figure 5 and Figure 6As shown, the cooling device 600 can be arranged between the second transfer platform 230 and the unloading device 500, and the cooling device 600 includes a first conveyor line 610 and a second conveyor line 620. The first conveyor line 610 is located above the second conveyor line 620, and the first conveyor line 610 and the second conveyor line 620 both extend in the front-to-back direction, and the head end of the first conveyor line 610 and the tail end of the second conveyor line 620 both partially extend into the second transfer platform 230. Driven by the fourth motor, the second movable guide rail carrying the pallet performs a lifting movement until it is flush with the first conveyor line 610, and conveys the pallet to the first conveyor line 610. The first conveyor line 610 transports the pallet to the unloading device 500. During the transportation process of the first conveyor line 610, the cooling device 600 can cool the dried lithium batteries on the pallet; the unloading device 500 places the empty pallet after unloading at the head end of the second conveyor line 620, and the second conveyor line 620 conveys the empty pallet to the tail end of the second conveyor line 620. Driven by the fourth motor, the second movable guide rail performs a lifting movement until it is flush with the second conveyor line 620. The second conveyor line 620 conveys the empty pallet to the second movable guide rail. Driven by the fourth motor, the second movable guide rail rises to be flush with the pallet return line 210. Driven by the third motor, the second movable guide rail moves right to connect with the pallet return line 210, and the second movable guide rail conveys the empty pallet to the pallet return line 210. By setting up the first conveyor line 610, the lithium batteries can be cooled while the tray carrying the dried lithium batteries is conveyed to the unloading device 500; by setting up the second conveyor line 620, the empty tray in the unloading device 500 can be transported back to the second transfer platform 230.

[0057] Specifically, a plurality of fans 630 are disposed above the first conveying line 610, and the direction of the fans 630 is consistent with the conveying direction of the first conveying line 610. Figure 6 As shown, the sides of the first conveyor line 610 are all closed, and openings are provided at the front and rear ends of the first conveyor line 610. Three fans 630 may be provided above the first conveyor line 610, and the direction of the fans 630 may be backward. When there are trays on the first conveyor line 610 for transportation, the fans 630 can blow out air to cool the dried lithium batteries on the trays. The fans 630 are low in cost and easy to install.

[0058] For further reference, Figure 8The unloading device 500 may include a lifting platform 510, a storage platform 520, a first transfer mechanism 530 and a second transfer mechanism 540. The lifting platform 510 may be located behind the cooling device 600. The lifting platform 510 can be lifted to align with the first conveyor line 610 or the second conveyor line 620. A track may be provided on the lifting platform 510. When the lifting platform 510 is aligned with the first conveyor line 610, the tray carrying the baked lithium batteries on the first conveyor line 610 enters the lifting platform 510 through the track. When the lowering platform 510 is aligned with the second conveyor line 620, the pallet on the lifting platform 510 can be moved along the track to the second conveyor line 620; the storage platform 520 can be arranged on the rear side of the lifting platform 510, and a first transfer mechanism 530 is provided between the storage platform 520 and the lifting platform 510, and the first transfer mechanism 530 is used to transfer the lithium batteries on the pallet parked on the lifting platform 510 to the storage platform 520; the second transfer mechanism 540 is used to transfer the lithium batteries stored on the storage platform 520 to the equipment of the next process.

[0059] Specifically, a third guide rail extending in the front-to-back direction is provided above both the lifting platform 510 and the storage platform 520. The first transfer mechanism 530 and the second transfer mechanism 540 are both provided on the third guide rail and can move forward and backward along the guide rail. The first transfer mechanism 530 includes a second cylinder and a second picking head. The second cylinder is installed on the third guide rail, and the second picking head is connected to the telescopic rod of the second cylinder. The second transfer mechanism 540 includes a third cylinder and a third picking head. The third cylinder is installed on the third guide rail, and the third picking head is connected to the telescopic rod of the third cylinder. When the unloading device 500 is working, the second cylinder moves to the top of the lifting platform 510 through the third guide rail, and the second cylinder drives the second picking head to do lifting movement to pick up the dried lithium batteries on the tray on the lifting platform 510, and the second cylinder moves to the top of the storage platform 520 through the third guide rail, and the second cylinder drives the second picking head to do lifting movement to place the dried lithium batteries picked up by the second picking head on the storage platform 520; the third cylinder moves to the top of the storage platform 520 through the third guide rail, and the third cylinder drives the third picking head to do lifting movement to pick up the dried lithium batteries on the storage platform 520, and the third cylinder moves to the next process equipment through the third guide rail, and the third cylinder drives the third picking head to do lifting movement to place the dried lithium batteries picked up by the third picking head into the equipment of the next process.

[0060] In some embodiments of the present invention, the transport assembly includes a lifting cylinder 323 and a picking mechanism 324, the picking mechanism 324 is connected to the telescopic rod of the lifting cylinder 323, a first guide rail 325 is provided above both the pallet station 322 and the fixture station 321, the extension direction of the first guide rail 325 is consistent with the extension direction of the moving track 310, the lifting cylinder 323 is slidably arranged on the transport trolley 320 through the first guide rail 325, and the lifting cylinder 323 can reciprocate along the first guide rail 325 just above the fixture station 321 and the pallet station 322. For example, Figure 3 and Figure 4 As shown, a first guide rail 325 is provided above both the pallet station 322 and the fixture station 321, and the first guide rail 325 extends in the front-to-back direction. The transport assembly includes a lifting cylinder 323 and a picking mechanism 324. The lifting cylinder 323 is installed on the first guide rail 325 and can slide back and forth along the first guide rail 325. The picking mechanism 324 is connected to the telescopic rod of the lifting cylinder 323. When the handling component is working, the lifting cylinder 323 can be moved to the top of the tray station 322 through the first guide rail 325. Under the drive of the lifting cylinder 323, the picking mechanism 324 can be lifted and lowered to grab the undried lithium batteries on the tray or place the dried lithium batteries on the tray; the lifting cylinder 323 can be moved to the top of the fixture station 321 through the first guide rail 325. Under the drive of the lifting cylinder 323, the picking mechanism 324 can be lifted and lowered to grab the dried lithium batteries on the fixture 120 or place the undried lithium batteries on the fixture 120.

[0061] Furthermore, the picking mechanism 324 includes a plurality of clamps, which can be lifted and lowered by the lifting cylinder 323 to pick up or put down the lithium battery. By providing a plurality of clamps, the picking mechanism 324 can grab a plurality of lithium batteries from the fixture 120 or the tray at one time; at the same time, the clamp structure is simple and easy to implement.

[0062] In some embodiments of the present invention, the clamp 120 and the oven 110 are connected via a hollow folding rod 130, and a wire for connecting the oven 110 and the clamp 120 is arranged in the folding rod 130. Figure 2As shown, the clamp 120 is connected to the oven 110 through a folding rod 130. The folding rod 130 can be set to be hollow, and a wire for connecting the oven 110 and the clamp 120 is arranged inside the folding rod 130. During the operation of the lithium battery drying line, the clamp push-pull assembly can pull the clamp 120 out of the oven 110. The clamp 120 and the oven 110 are connected through the wire, so that the electrical connection between the clamp 120 and the oven 110 is reliable, avoiding the occurrence of vacuum discharge, and the clamp 120 and the oven 110 are electrically connected through the wire, so that the clamp 120 can leave the oven 110; the wire is arranged in the hollow folding rod 130, and the folding rod 130 can protect the wire. At the same time, the folding rod 130 can be retracted, so that the clamp push-pull assembly can pull the clamp 120 out of the oven 110.

[0063] In some embodiments of the present invention, a maintenance platform 700 is further included. The maintenance platform 700 is arranged in parallel with the oven 110. Through the fixture push-pull assembly, the transport trolley 320 can transport the faulty fixture 120 to the maintenance platform 700. For example, Figure 1 As shown, the maintenance platform 700 can be arranged in the same row as the baking oven 110 in the baking device 100, and the transport trolley 320 can move along the moving track 310 to correspond to the maintenance platform 700. During the operation of the lithium battery drying line, for the damaged fixture 120 in the baking oven 110, the transport trolley 320 can move the damaged fixture 120 to the fixture station 321 through the fixture push-pull assembly, manually disconnect the connection between the damaged fixture 120 and the baking oven 110, and then the transport trolley 320 moves along the moving track 310 to correspond to the maintenance platform 700, and the fixture push-pull assembly pushes the damaged fixture 120 at the fixture station 321 into the maintenance platform 700, and the workers can repair the fixture 120 in the maintenance platform 700, while the baking oven 110 can work normally. By providing the maintenance platform 700 , for a faulty fixture 120 , the transport vehicle 320 can transport the faulty fixture 120 to the maintenance platform 700 for maintenance without stopping the entire lithium battery drying line.

[0064] Furthermore, the baking device 100 and the maintenance platform 700 are provided in two groups, which are respectively provided on both sides of the battery transfer device 300. Figure 1 As shown, there are two groups of baking devices 100 and maintenance platforms 700, which are respectively located on the left and right sides of the battery loading and moving device. By setting two groups of baking devices 100 and maintenance platforms 700, the working efficiency of the lithium battery drying line is further improved.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Lithium battery drying line, characterized in that: include: A baking device (100), the baking device (100) comprising a plurality of baking ovens (110) arranged in parallel, wherein a clamp (120) is provided in the baking oven (110); A tray transfer device is arranged on one side of the baking device (100), the tray transfer device comprises a tray output line (200); the tray transfer device also comprises a tray return line (210), the tray return line (210) is arranged above the baking device (100), the tray return line (210) is used to transport the tray from the rear end of the tray output line (200) back to the head end of the tray output line (200); the tray transfer device also comprises a first transfer platform (2 20) and a second transfer platform (230), the tail end of the pallet return line (210) is connected to the head end of the pallet output line (200) through the first transfer platform (220), the first transfer platform (220) can transfer the pallet from the tail end of the pallet return line (210) to the head end of the pallet output line (200), and the tail end of the pallet output line (200) is connected to the head end of the pallet return line (210) through the second transfer platform (230), The second transfer platform (230) is capable of transferring the pallet from the rear end of the pallet output line (200) to the head end of the pallet return line (210); A battery transfer device (300) is arranged on one side of the baking device (100) and is located above the tray output line (200). The battery transfer device (300) comprises a movable track (310) and a plurality of transport carts (320). The movable track (310) is arranged on the side of the baking device (100). The transport cart (320) can move along the movable track (310). The transport cart (320) is provided with a fixture station (321) and a tray station (322). 22), the fixture station (321) and the tray station (322) are arranged along the extension direction of the moving track (310), the fixture station (321) is provided with a fixture push-pull assembly, and a conveying assembly is provided above both the fixture station (321) and the tray station (322), the fixture push-pull assembly is used to drive the fixture (120) to reciprocate between the baking oven (110) and the fixture station (321), and the tray can be moved along the tray output line (200) The transport assembly is moved to the bottom of the pallet station (322), and the transport assembly can reciprocate between the fixture station (321) and the pallet station (322); the transport assembly includes a lifting cylinder (323) and a picking mechanism (324), the picking mechanism (324) is connected to the telescopic rod of the lifting cylinder (323), and a first guide rail (325) is provided above both the pallet station (322) and the fixture station (321), and the extension direction of the first guide rail (325) is parallel to the pallet station (322). The extending directions of the movable rails (310) are consistent; the lifting cylinder (323) is slidably arranged on the transport trolley (320) through the first guide rail (325); the lifting cylinder (323) can reciprocate along the first guide rail (325) directly above the clamping station (321) and the tray station (322); the picking mechanism includes a plurality of clamping claws, and under the drive of the lifting cylinder (323), the clamping claws can perform lifting and lowering movements to pick up or put down the lithium battery; A loading device (400) is arranged at the front end of the tray transfer device and is used to convey unbaked lithium batteries to the empty tray on the tray transfer device; A material unloading device (500) is arranged at the rear end of the tray transfer device and is used for unloading the tray carrying the dried lithium batteries on the tray transfer device.

2. The lithium battery drying line according to claim 1, characterized in that: It also includes a cooling device (600) disposed between the second transfer platform (230) and the unloading device (500), wherein the cooling device (600) includes a first conveyor line (610) for cooling batteries and a second conveyor line (620) for reflowing trays, wherein the first conveyor line (610) is located above the second conveyor line (620).

3. The lithium battery drying line according to claim 2, characterized in that: A plurality of fans (630) are arranged above the first conveying line, and the directions of the fans (630) are consistent with the conveying direction of the first conveying line (610).

4. The lithium battery drying line according to claim 1, characterized in that: The clamp (120) and the baking oven (110) are connected via a hollow folding rod (130), and a conducting wire for conducting the baking oven (110) and the clamp (120) is arranged in the folding rod (130).

5. The lithium battery drying line according to claim 1, characterized in that: It also includes a maintenance platform (700), which is arranged in parallel with the baking oven (110). Through the clamp push-pull assembly, the transport trolley (320) can transport the faulty clamp (120) to the maintenance platform (700).

6. The lithium battery drying line according to claim 5, characterized in that: The baking device (100) and the maintenance platform (700) are provided in two groups, which are respectively arranged on both sides of the battery transfer device (300).

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