Box inlet line and battery production line

Abstract

The utility model provides a box entry line and battery production line, the box entry line comprises an upper layer conveyor line, a lower layer conveyor line and a first lifting mechanism, the upper layer conveyor line comprises a feeding end and a discharging end, the feeding end is adjacent to a first feeding line, the discharging end is adjacent to a second feeding line, the upper layer conveyor line is used for receiving full-load trays from the first feeding line, and the lower layer conveyor line is used for receiving the full-load trays from the second feeding line. The first lifting mechanism is arranged at the discharging end, and the first lifting mechanism is used for conveying the empty trays obtained after boxing operation is completed to the second feeding line to complete discharging of the empty trays and further used for conveying the full-load trays retained on the upper-layer conveying line to the lower-layer conveying line to be temporarily stored under the condition that boxing failure occurs on the boxing station. And meanwhile, the upper-layer conveying line and the lower-layer conveying line are arranged up and down, so that the occupied area of the box inlet line can be effectively reduced, the space utilization rate of the production line is improved, and planning and construction of the battery production line are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production line design, in particular to a box-entering line and a battery production line. Background Art

[0002] Currently, battery packs are typically preheated using a tunnel oven. After exiting the oven, the battery packs are transported to a boxing station via a loading line, where they are quickly and accurately placed into the designated battery pack boxes. However, this loading station can experience boxing failures, which can easily cause congestion on the loading line and impact battery production efficiency.

[0003] In order to avoid congestion in the box-entering line, the existing technology usually adopts a method of reserving a cache space for storing battery packs between the tunnel furnace exit section and the box-entering station section. However, the setting of the cache space will lead to an increase in the floor area of ​​the battery production line and a significant reduction in the utilization rate of the production line space, which is not conducive to the planning and construction of the battery production line. Utility Model Content

[0004] In view of this, the present invention provides a box loading line and a battery production line to at least solve the problem in the prior art that the setting of the buffer space leads to an increase in the floor space of the battery production line and a decrease in the utilization rate of the production line space.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] The utility model provides a box-entering line, which includes an upper conveyor line, a lower conveyor line and a first lifting mechanism; the upper conveyor line includes a loading end and a unloading end, the loading end is adjacent to the first feeding line, and the unloading end is adjacent to the second feeding line, and the upper conveyor line is used to receive full pallets from the first feeding line; the first lifting mechanism is arranged at the unloading end, and the first lifting mechanism is used to convey the full pallet to the lower conveyor line and convey the empty pallet to the second feeding line; wherein, the products carried on the full pallet form the empty pallet after being boxed.

[0007] Optionally, the box loading line further includes a second lifting mechanism; the second lifting mechanism is arranged at the loading end, and the second lifting mechanism is used to transport the fully loaded pallet on the lower conveyor line to the upper conveyor line.

[0008] Optionally, the box loading line further includes a detection device; the detection device is provided at the unloading end, and the detection device is used to detect the loading status of the pallet to distinguish the fully loaded pallet from the empty pallet.

[0009] Optionally, the detection device is installed on the first lifting mechanism.

[0010] Optionally, the detection device is a photoelectric sensor or a pressure sensor.

[0011] Optionally, the first lifting mechanism and / or the second lifting mechanism is a rotatable lifting mechanism.

[0012] Optionally, the upper conveying line and the lower conveying line are parallel to each other.

[0013] The utility model also provides a battery production line, including first feeding line, second feeding line, preheating station, enter the box station and preceding any one described enter the box line, the outlet of preheating station is adjacent first feeding line, the feeding end of enter the box line is adjacent first feeding line, the unloading end of enter the box line is adjacent second feeding line, enter the box station is located on the conveying path of enter the box line, preheating station is used for preheating the battery group in full load tray, enter the box station is used for the battery group in full load tray enter the box.

[0014] Optionally, the inlet end of the preheating station is adjacent to the second feeding line.

[0015] Optionally, further comprising a control system; the control system is used to obtain the residence duration of the full load tray in the entering box station, and in the case that the residence duration exceeds the preset duration, the control system controls the upper conveying line to convey the full load tray to the lower conveying line.

[0016] Compared with the prior art, the entering box line and the battery production line have the following advantages:

[0017] The entering box line comprises an upper conveying line, a lower conveying line and a first lifting mechanism, the upper conveying line comprises a feeding end and an unloading end, the feeding end is adjacent to the first feeding line, and the unloading end is adjacent to the second feeding line; the upper conveying line is used to receive the full load tray from the first feeding line; the first lifting mechanism is arranged at the unloading end; the first lifting mechanism is used to convey the empty tray after the entering box operation to the second feeding line, complete the unloading of the empty tray, and further used to convey the full load tray retained on the upper conveying line to the lower conveying line for buffering in the case of entering box failure at the entering box station, so as to avoid causing congestion of the upper conveying line, and make the entering box line have an emergency disposal function; in addition, the upper conveying line and the lower conveying line are arranged in an up-down mode, which can effectively reduce the floor area of the entering box line and improve the space utilization of the production line, thereby being helpful for planning and construction of the battery production line.

[0018] The battery production line of the present invention has the same or similar advantages as the prior art and the aforementioned boxing line, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a top view of a box entry line in an embodiment of the present utility model;

[0021] Figure 2 This is a side view of a box entry line in an embodiment of the present utility model;

[0022] Figure 3 It is a top view of a battery production line in an embodiment of the present utility model.

[0023] Description of reference numerals:

[0024] 1-boxing line, 11-upper conveyor line, 12-lower conveyor line, 13-first lifting mechanism, 14-second lifting mechanism, 2-first feeding line, 3-second feeding line, 4-preheating station, 5-boxing station, 6-battery pack stacking station. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The terms "first," "second," and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0027] It should be appreciated that every instance in which terms such as "in some embodiments" are recited in this specification are not necessarily all referring to the same embodiments. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0028] A box-in line and a battery production line provided by the present application will be described in detail below by listing specific embodiments.

[0029] With reference to Figure 1 and Figure 2 , the embodiment of the present application provides a box-in line 1, which comprises an upper layer conveying line 11, a lower layer conveying line 12 and a first lifting mechanism 13; the upper layer conveying line 11 comprises a feeding end and a discharging end, the feeding end is adjacent to a first feeding line 2, the discharging end is adjacent to a second feeding line 3, and the upper layer conveying line 11 is used for receiving a full-load tray from the first feeding line 2; the first lifting mechanism 13 is arranged at the discharging end, and the first lifting mechanism 13 is used for conveying the full-load tray to the lower layer conveying line 12 and conveying an empty tray to the second feeding line 3; wherein the product carried on the full-load tray forms the empty tray after being put into a box.

[0030] In the embodiment, the box-in line 1 of the embodiment belongs to a part of a battery production line, and the box-in line 1 is arranged beside a box-in station 5 and is used for conveying a full-load tray to the box-in station 5 to realize a box-in operation of a battery pack, wherein the full-load tray refers to a tray carrying a product, which can be a battery pack to be placed in a battery pack box body or other components to be placed in the battery pack box body, and the embodiment of the present application takes the battery pack as an example for description. At the box-in station 5, a mechanical hand grasps the battery pack on the full-load tray and puts it into the battery pack box body to realize the box-in operation, and the full-load tray becomes an empty tray after the box-in operation, that is, the empty tray refers to a tray not carrying the battery pack or other products.

[0031] Due to the influence of factors such as failure of the box-in equipment, failure of the mechanical hand to grasp, etc. of the box-in station 5, the box-in line 1 is prone to the problem of box-in failure, and if the problem of box-in failure occurs, the full-load tray will be stranded on the box-in line 1, thereby causing congestion of the box-in line 1 and affecting the normal operation of the battery production line. Therefore, the box-in line 1 of the embodiment of the present application is designed as a double-layer structure, comprising an upper layer conveying line 11 and a lower layer conveying line 12, and the upper layer conveying line 11 and the lower layer conveying line 12 are arranged in a top-bottom manner, wherein the upper layer conveying line 11 is mainly used for conveying the full-load tray to the box-in station 5 for box-in operation, and the lower layer conveying line 12 is mainly used for buffering the full-load tray in the case of congestion of the upper layer conveying line 11.

[0032] Specifically, the upper conveyor line 11 includes a loading end and a unloading end. The loading end is adjacent to the first feeding line 2 of the battery production line, and the unloading end is adjacent to the second feeding line 3 of the battery production line. During the operation of the battery production line, the upper conveyor line 11 receives the fully loaded pallet from the first feeding line 2, and conveys the fully loaded pallet to the boxing station 5 for boxing. After the fully loaded pallet completes the boxing operation and becomes an empty pallet, the upper conveyor line 11 conveys the empty pallet to the unloading end, and conveys the empty pallet to the second feeding line 3 through the unloading end to complete the unloading of the empty pallet. If the boxing station 5 fails to box, the upper conveyor line 11 can convey the stranded fully loaded pallet to the lower conveyor line 12 for caching to avoid congestion on the upper conveyor line 11. Among them, the transfer of pallets between the upper conveyor line 11 and the first feeding line 2 and the second feeding line 3 can be achieved by relying on a manipulator or other transfer mechanisms.

[0033] In this embodiment, the unloading end is provided with a first lifting mechanism 13, which has an up and down lifting function. It can transport the empty pallets of the upper conveyor line 11 to the second feeding line 3 to complete the unloading of the empty pallets. It can also transport the fully loaded pallets stranded on the upper conveyor line 11 to the lower conveyor line 12 for buffering when the boxing station 5 fails to load the boxes, so as to avoid congestion on the upper conveyor line 11. In addition, after the boxing function of the boxing station 5 returns to normal, the pallets buffered on the lower conveyor line 12 can be placed on the upper conveyor line 11 manually, or they can be placed on the upper conveyor line 11 by grabbing them with a robot. This embodiment does not limit the transportation method of the buffered fully loaded pallets.

[0034] It should be noted that the operation of the upper conveyor line 11 and the lower conveyor line 12 in this embodiment depends on the control system of the battery production line. During the operation of the battery production line, the control system can control the upper conveyor line 11 and the lower conveyor line 12 to always remain in operation, or can control the upper conveyor line 11 and the lower conveyor line 12 to be in operation intermittently. In addition, the upper conveyor line 11 and the lower conveyor line 12 can operate synchronously or asynchronously, as long as the operation directions of the upper conveyor line 11 and the lower conveyor line 12 are opposite. The specific setting can be based on the actual situation of the battery pack being put into the box, and this embodiment does not limit this.

[0035] In some embodiments, reference Figure 2The upper conveyor line 11 and the lower conveyor line 12 can be set to be parallel to each other, so that the first lifting mechanism 13 can transport pallets between the upper conveyor line 11 and the lower conveyor line 12. Here, "parallel" includes not only the absolutely parallel situation, but also the generally recognized approximately parallel situation. For example, the upper conveyor line 11 and the lower conveyor line 12 are considered to be parallel to each other when the difference between them is -1° to 1°.

[0036] In summary, the boxing line 1 provided by the embodiment of the present invention includes an upper conveyor line 11, a lower conveyor line 12 and a first lifting mechanism 13. The upper conveyor line 11 includes a loading end and a unloading end. The loading end is adjacent to the first feeding line 2, and the unloading end is adjacent to the second feeding line 3. The upper conveyor line 11 is used to receive fully loaded pallets from the first feeding line 2. The first lifting mechanism 13 is arranged at the unloading end. The first lifting mechanism 13 is used to convey the empty pallets after the boxing operation is completed to the second feeding line 3 to complete the unloading of the empty pallets. It is also used to convey the fully loaded pallets stranded on the upper conveyor line 11 to the lower conveyor line 12 for caching when the boxing station 5 fails to load the box, thereby avoiding congestion on the upper conveyor line 11 and enabling the boxing line 1 to have an emergency disposal function. Compared to the prior art arrangement of buffer space beside the boxing line 1, the upper conveyor line 11 and the lower conveyor line 12 are arranged vertically in the boxing line 1 of the present embodiment. This effectively reduces the floor space occupied by the boxing line 1 and improves the space utilization rate of the production line, thereby facilitating the planning and construction of the battery production line. In addition, the boxing line 1 of the present embodiment achieves the boxing and buffering of battery packs through a double-layer structure, without changing the path and layout of the existing production line, and does not affect the normal operation of the existing production line, which helps to reduce the difficulty of production line construction and control construction costs.

[0037] Optionally, refer to Figure 1 The box loading line 1 further includes a second lifting mechanism 14 ; the second lifting mechanism 14 is provided at the loading end, and the second lifting mechanism 14 is used to transport the fully loaded pallet on the lower conveyor line 12 to the upper conveyor line 11 .

[0038] In this embodiment, in addition to the first lifting mechanism 13 provided at the unloading end of the upper conveyor line 11, a second lifting mechanism 14 is also provided at the loading end of the upper conveyor line 11. The second lifting mechanism 14 has an up and down lifting function, which can transport the fully loaded pallets on the lower conveyor line 12 to the upper conveyor line 11. Therefore, after the boxing function of the boxing station 5 returns to normal, the second lifting mechanism 14 can realize the automatic transportation of the buffered pallets, thereby improving the automation level of the boxing line 1 and helping to improve the production efficiency of the boxing line 1. In some embodiments, the second lifting mechanism 14 can also transport the fully loaded pallets on the first feeding line 2 to the upper conveyor line 11, eliminating the step of robot grasping, further improving the automation level of the battery production line, thereby improving the production efficiency of the battery and being more conducive to the mass production of batteries.

[0039] Optionally, the box loading line 1 further includes a detection device; the detection device is provided at the unloading end, and the detection device is used to detect the loading status of the pallet to distinguish the fully loaded pallet from the empty pallet.

[0040] In this embodiment, the unloading end of the upper conveyor line 11 is also provided with a detection device, which is used to detect the loading status of the pallet. If the detection device detects that the pallet is loaded with battery packs, the pallet is determined to be full. If the detection device detects that the pallet is not loaded with battery packs, the pallet is determined to be empty. The detection device is used to distinguish between full and empty pallets. It should be noted that the battery production line includes various conveyor lines and a control system. The control system is responsible for controlling and coordinating the operating status of each conveyor line to ensure the normal operation of the entire production line. The detection device in the box loading line 1 is electrically connected to the control system. After the detection device detects the loading status of the pallet, the control system will obtain the loading information and make a judgment based on the loading information. If the pallet is determined to be full, the first lifting mechanism 13 is controlled to transport the full pallet to the lower conveyor line 12 for caching of the full pallet. If the pallet is determined to be empty, the first lifting mechanism 13 is controlled to transport the empty pallet to the second feeding line 3 for unloading of the empty pallet.

[0041] In addition, the control system can also perform a preliminary distinction between pallets based on the length of time the pallet stays at the box loading station 5. If the length of time the pallet stays at the box loading station 5 is within a preset time range, the pallet flowing to the unloading end of the upper conveyor line 11 is determined to be an empty pallet. If the length of time the pallet stays at the box loading station 5 is not within the preset time range, the pallet flowing to the unloading end of the upper conveyor line 11 is determined to be an empty pallet. The preset time is set based on the time it takes for the box loading station 5 to complete box loading, and this embodiment does not impose any restrictions on this. Therefore, this embodiment achieves a secondary distinction through the detection device based on the control system's distinction between full pallets and empty pallets, which helps to improve the accuracy of the judgment results and ensure that no information is invalid or missed.

[0042] Optionally, the detection device is installed on the first lifting mechanism 13 .

[0043] In this embodiment, a mounting position for a detection device is reserved on the first lifting mechanism 13. The detection device is installed in the mounting position to achieve a fixed connection between the detection device and the first lifting mechanism 13. The detection device and the first lifting mechanism 13 can be fixedly connected by means of fastener assembly, adhesive connection, and clamping, etc. The specific connection method is not limited in this embodiment. The detection device is directly installed on the first lifting mechanism 13, which helps to simplify the installation method of the detection device and reduce the design difficulty of the box entry line 1.

[0044] Optionally, the detection device is a photoelectric beam sensor or a pressure sensor.

[0045] In this embodiment, the detection device uses a photoelectric through-beam sensor or pressure sensor. This sensor consists of a transmitter and a receiver, placed on either side of the pallet. During detection, the transmitter emits a visible light or infrared beam, which passes through the object being detected and reaches the receiver. When a battery pack is loaded on the pallet, it blocks the beam, reducing the light intensity received by the receiver. By measuring the change in light intensity at the receiver, the presence of batteries can be determined, enabling the distinction between a full and empty pallet. Photoelectric through-beam sensors offer high precision, accuracy, and fast response, ensuring that the detection device can promptly and effectively detect the pallet's load status. Pressure sensors can detect pressure signals on the pallet and convert them into output electrical signals according to certain rules. These sensors typically include piezoresistive, capacitive, and inductive pressure sensors. When a pallet is loaded with battery packs, the pallet is heavier, and the pressure detected by the pressure sensor is higher. When the pallet is empty, the pallet is lighter, and the pressure detected by the pressure sensor is lower. This pressure value can be used to determine whether the pallet is loaded with battery packs, enabling the distinction between a full and empty pallet. Pressure sensors are simple in structure, low in cost, and easy to install, simplifying the installation of detection devices.

[0046] Optionally, the first lifting mechanism 13 and / or the second lifting mechanism 14 is a rotatable lifting mechanism.

[0047] In this embodiment, the first lifting mechanism 13 can be a rotatable lifting mechanism. The first lifting mechanism 13 can be rotated to face the upper conveyor line 11 or the lower conveyor line 12, or it can be rotated to face the second feeding line 3. Thus, the first lifting mechanism 13 can not only transport fully loaded pallets from the upper conveyor line 11 to the lower conveyor line 12 for buffering, but also transport empty pallets from the upper conveyor line 11 to the second feeding line 3 for unloading. This effectively improves the flexibility of the conveying process of the first lifting mechanism 13 and increases the utilization rate of the first lifting mechanism 13.

[0048] The second lifting mechanism 14 can also be a rotatable lifting mechanism. The second lifting mechanism 14 can rotate toward the upper conveyor line 11 or the lower conveyor line 12, or toward the first feeding line 2. Therefore, the second lifting mechanism 14 can not only transport fully loaded pallets buffered on the lower conveyor line 12 to the upper conveyor line 11, but also transport fully loaded pallets on the first feeding line 2 to the upper conveyor line 11 for battery pack placement on the fully loaded pallets. This effectively improves the flexibility of the second lifting mechanism 14's conveying process and increases its utilization rate.

[0049] Reference Figure 3 , an embodiment of the present invention further provides a battery production line, which includes a first feeding line 2, a second feeding line 3, a preheating station 4, a boxing station 5 and the boxing line 1 described in any one of the aforementioned embodiments; the outlet end of the preheating station 4 is adjacent to the first feeding line 2, the loading end of the boxing line 1 is adjacent to the first feeding line 2, the unloading end of the boxing line 1 is adjacent to the second feeding line 3, and the boxing station 5 is arranged on the conveying path of the boxing line 1; the preheating station 4 is used to preheat the battery packs in the fully loaded pallet, and the boxing station 5 is used to box the battery packs in the fully loaded pallet.

[0050] In this embodiment, the preheating station 4 can preheat the battery pack in the fully loaded tray and transport the preheated fully loaded tray to the first feeding line 2. Before preheating, the battery pack in the tray is a plurality of battery cells stacked together. The adjacent surfaces of the plurality of battery cells are coated with an adhesive. The adhesive can be used to pre-fix the plurality of battery cells. Then, the plurality of battery cells are transported together with the tray to the preheating station 4 for preheating. After preheating, the adhesive on the surface of the battery cells solidifies, and the plurality of battery cells are firmly bonded together to form a battery pack. In some embodiments, the preheating station 4 can use a tunnel furnace. The tunnel furnace uses an electric heating wire as a heat source and heats the plurality of battery cells by radiation convection. The battery cells pass through the preheating zone, the temperature rising zone and the constant temperature zone in the tunnel furnace, and finally achieve the predetermined preheating effect, so that the adhesive between the plurality of battery cells is solidified, and the plurality of battery cells are firmly bonded together to form a battery pack. Tunnel furnace preheating has the advantages of high efficiency and energy saving. It can heat the plurality of battery cells evenly and improve the preheating effect of the battery pack.

[0051] The outlet of the preheating station 4 is adjacent to the first feeding line 2. The preheated battery packs are transported to the first feeding line 2 together with the pallets. This also means that the fully loaded pallets are transported to the first feeding line 2. The first feeding line 2 is adjacent to the loading end of the boxing line 1. The fully loaded pallets are further transported to the boxing station 5 via the first feeding line 2. At the boxing station 5, the battery packs on the pallets are removed and placed in the battery pack boxes, completing the boxing operation of the battery packs. After the fully loaded pallet is boxed, it becomes an empty pallet. The unloading end of the boxing line 1 is adjacent to the second feeding line 3. The empty pallets are further transported to the second feeding line 3 via the boxing line 1, and the empty pallets are unloaded on the second feeding line 3.

[0052] Optionally, refer to Figure 3 The inlet end of the preheating station 4 is adjacent to the second feeding line 3.

[0053] In this embodiment, on the basis of unloading empty pallets on the second feeding line 3, the entrance end of the preheating station 4 is adjacent to the second feeding line 3, and the second conveyor line can also feed the preheating station 4. Specifically, the end of the second feeding line 3 away from the preheating station 4 can be adjacent to the battery pack stacking station 6. At the battery pack stacking station 6, multiple battery cells are stacked on the pallet to form a fully loaded pallet. The fully loaded pallet is transported to the preheating station 4 via the second feeding line 3 for preheating. After preheating, the fully loaded pallet is transported to the boxing line 1 via the first feeding line 2, and the boxing is completed at the boxing station 5 next to the boxing line 1. The empty pallet formed after boxing is transported to the second feeding line 3 via the boxing line 1. The second feeding line 3 transports the empty pallet to the battery pack stacking station 6 for recycling, thereby realizing the cycle of the battery production line and effectively improving the utilization rate of the battery production line.

[0054] Optionally, the battery production line also includes a control system; the control system is used to obtain the length of time the fully loaded pallet stays at the box loading station 5, and when the length of time exceeds a preset length of time, controls the upper conveyor line 11 to convey the fully loaded pallet to the lower conveyor line 12.

[0055] In this embodiment, the length of time that a fully loaded pallet stays at the boxing station 5 represents the length of time that the battery packs on the pallet are boxed. Under normal circumstances, the boxing time will be within the range of the preset time. If the fully loaded pallet stays at the boxing station 5 for a longer time, it means that the battery packs on the pallet are boxed for a longer time. If the time exceeds the preset time, it means that the boxing station 5 may have failed to box. At this time, the control system will control the upper conveyor line 11 to transport the fully loaded pallet to the lower conveyor line 12, so that the fully loaded pallet can be cached on the lower conveyor line 12 to avoid congestion caused by too many fully loaded pallets on the upper conveyor line 11, which helps to maintain the normal operation of the battery production line.

[0056] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A box loading line (1), characterized in that: The box entry line (1) comprises an upper conveying line (11), a lower conveying line (12) and a first lifting mechanism (13); The upper conveyor line (11) comprises a loading end and a unloading end, the loading end is adjacent to the first feeding line (2), the unloading end is adjacent to the second feeding line (3), and the upper conveyor line (11) is used to receive fully loaded pallets from the first feeding line (2); The first lifting mechanism (13) is provided at the unloading end, and the first lifting mechanism (13) is used to convey the fully loaded pallet to the lower conveying line (12) and to convey the empty pallet to the second feeding line (3); The empty pallet is formed by the products carried on the full pallet being boxed.

2. The box loading line (1) according to claim 1, characterized in that: The box loading line (1) further includes a second lifting mechanism (14); The second lifting mechanism (14) is provided at the loading end, and the second lifting mechanism (14) is used to convey the fully loaded pallet on the lower conveyor line (12) to the upper conveyor line (11).

3. The box loading line (1) according to claim 1, characterized in that: The box entry line (1) further includes a detection device; The detection device is provided at the unloading end, and is used to detect the loading condition of the pallet to distinguish the fully loaded pallet from the empty pallet.

4. The box loading line (1) according to claim 3, characterized in that: The detection device is installed on the first lifting mechanism (13).

5. The box entry line (1) according to claim 3, characterized in that: The detection device is a photoelectric beam sensor or a pressure sensor.

6. The box loading line (1) according to claim 2, characterized in that: The first lifting mechanism (13) and / or the second lifting mechanism (14) are rotatable lifting mechanisms.

7. The box loading line (1) according to claim 1, characterized in that: The upper conveying line (11) and the lower conveying line (12) are parallel to each other.

8. A battery production line, characterized in that: It comprises a first feeding line (2), a second feeding line (3), a preheating station (4), a box-entering station (5), and the box-entering line (1) according to any one of claims 1 to 7; The outlet end of the preheating station (4) is adjacent to the first feeding line (2), the loading end of the box-entering line (1) is adjacent to the first feeding line (2), the unloading end of the box-entering line (1) is adjacent to the second feeding line (3), and the box-entering station (5) is arranged on the conveying path of the box-entering line (1); The preheating station (4) is used to preheat the battery packs in the fully loaded pallet, and the boxing station (5) is used to box the battery packs in the fully loaded pallet.

9. The battery production line according to claim 8, characterized in that: The inlet end of the preheating station (4) is adjacent to the second feeding line (3).

10. The battery production line according to claim 8, characterized in that: Also includes control systems; The control system is used to obtain the length of time the fully loaded pallet stays at the box entry station (5), and when the length of time exceeds a preset length of time, controls the upper conveyor line (11) to convey the fully loaded pallet to the lower conveyor line (12).

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