Steel belt feeding device and automatic binding belt binding equipment for battery cell

Abstract

The utility model discloses a steel belt feeding device and automatic binding belt binding equipment of a battery cell, and relates to the technical field of battery manufacturing. Wherein the feeding bracket is provided with a supporting station; in the structure of the feeding tray, a bottom frame can be downwards arranged on a supporting station, opening rods extend up and down and are arranged on the bottom frame, the multiple opening rods are arranged on the horizontal plane at intervals so as to form an opening space allowing a steel belt to be arranged in a sleeving mode from top to bottom, and a set of circulating conveying mechanisms are arranged on the two opposite sides of the opening space in the horizontal direction. The circulating conveying mechanisms are provided with a plurality of supporting blocks used for supporting the steel belt, the multiple supporting blocks are evenly arranged at intervals along the circulating path of the circulating conveying mechanisms, and the driving mechanism is configured to be capable of driving the two sets of circulating conveying mechanisms to operate so that the supporting blocks located on the two opposite sides of the opening space can synchronously ascend and descend. According to the utility model, the stability of the steel belt in the conveying process can be improved, the high feeding precision is ensured, the automatic grabbing is convenient, and the working efficiency of automatic binding belt tying is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a steel strip feeding device and an automatic strapping device for battery cores. Background Art

[0002] Currently, competition in the lithium battery industry is fierce, with rapid product upgrades and customer requirements for battery manufacturing equipment, including automation, production efficiency, and compatibility. Among these, battery module tie-tying machines have long been a key challenge to automate. Traditional battery module tie-tying machines rely on manual pre-embedding and tie-tying. This approach suffers from low automation rates, high labor requirements, numerous uncertainties, and difficulty meeting the requirements of high-efficiency production lines.

[0003] With technological advancements, battery module strapping stations have been upgraded to automated models, with a loading robot transferring the steel strips from the steel strip trolley to the station. However, the steel strip trolley features multiple square steel strips arranged closely together horizontally and suspended from the trolley's horizontal rods. As the trolley moves to the strip feeding position, the strips may slip along the rods, causing their horizontal position to shift or even fall from the rods. This reduces feeding accuracy, preventing the loading robot from accurately gripping the strips, and negatively impacting the efficiency of battery module strapping. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a steel strip feeding device and an automatic strapping device for battery cells, which can improve the stability of the steel strip during transportation, ensure high feeding accuracy, facilitate automatic grasping, and improve the efficiency of automatic strapping.

[0005] The first embodiment of the present invention provides a steel strip feeding device, which includes:

[0006] a loading bracket having a supporting station;

[0007] The loading tray includes a base frame, a support rod, a circulating conveying mechanism and a driving mechanism. The base frame can be placed downward on the supporting station. The support rod extends in the up and down directions and is arranged on the base frame. There are multiple support rods, which are arranged at intervals on the horizontal plane to form a support space for the steel belt to be inserted from top to bottom. A group of the circulating conveying mechanism is provided on opposite sides of the support space in the horizontal direction. The circulating conveying mechanism is provided with multiple support blocks for supporting the steel belt. Multiple support blocks are evenly spaced along the circulating path of the circulating conveying mechanism. The driving mechanism is configured to drive two groups of the circulating conveying mechanisms to operate so that the support blocks located on opposite sides of the support space can be raised and lowered synchronously.

[0008] The steel strip feeding device according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: in the structure of the feeding tray, the multiple expansion rods on the base frame are arranged at intervals on the horizontal plane and form an expansion space. Therefore, when the steel strip is placed in the expansion space from top to bottom, the inner circumference of the steel strip is in contact with the multiple expansion rods, so that the steel strip can maintain a normal expansion state, so that the steel strip can be directly put on the battery module from top to bottom subsequently; and, a group of circulating conveying mechanisms are provided on opposite sides of the expansion space, and the circulating conveying mechanisms are provided with multiple support blocks along their circulation path. When the steel strip is placed in the expansion space, the support blocks located on opposite sides of the steel strip can exert a supporting effect, so that the steel strip can maintain a stable horizontal state at a set height position. Therefore, strips of steel strips can be placed in the expansion space from top to bottom and stored in an orderly manner.

[0009] During the process of the loading tray being transported to the supporting station of the loading bracket, since each steel strip can simultaneously obtain the spreading effect of multiple spreading rods and the supporting effect of the support blocks on both sides, it can ensure that the steel strip has high stability during transportation and is not prone to position displacement; when the loading tray is placed on the supporting station of the loading bracket, the driving mechanism is used to drive the circulating conveying mechanisms located on the opposite sides of the steel strip to move in opposite directions, so that the support blocks located on the opposite sides of the spreading space rise synchronously, so as to lift the steel strips one by one to the set height position, improve the feeding accuracy, facilitate the automatic and accurate grasping of the steel strips, and help to improve the efficiency of automatic strapping of battery cell modules; when the steel strips on the loading tray are consumed, the next loading tray is transported to the loading bracket to provide new steel strips.

[0010] In some embodiments of the present invention, the expansion rod is a round rod, and a plurality of the expansion rods are arranged in a matrix, and the expansion space is rectangular when viewed from top to bottom.

[0011] In some embodiments of the present invention, each group of the circulating conveying mechanism includes a transmission shaft, a synchronous pulley and a synchronous belt. The transmission shaft can be rotatably arranged on the base frame. There are two transmission shafts, which are arranged at intervals in the upper and lower directions. Each transmission shaft is provided with a plurality of the synchronous pulleys at intervals along its extension direction. The synchronous pulleys on the upper and lower sides are wrapped with the synchronous belts. The synchronous belts are provided with a plurality of support blocks at intervals along their circulation path. Two of the transmission shafts located on opposite sides of the open space are connected for transmission. The output end of the driving mechanism is connected to any one of the transmission shafts to drive the synchronous belts located on opposite sides of the open space to circulate in opposite directions.

[0012] In some embodiments of the present invention, the steel strip feeding device also includes an unlocking mechanism, a handwheel, a positioning pin and a turntable. The unlocking mechanism and the driving mechanism are both separately arranged from the base frame. The handwheel is connected to any one of the transmission shafts. Any one of the transmission shafts is coaxially provided with the turntable and can be separately engaged with the output end of the driving mechanism. The turntable is provided with a plurality of positioning holes evenly spaced along its circumference. The positioning pin is slidably connected to the base frame. The positioning pin is configured to be inserted into any one of the positioning holes. The unlocking mechanism is configured to drive the positioning pin out of the positioning hole.

[0013] In some embodiments of the present invention, the driving mechanism includes a rotary driving member and a first linear driving member, wherein the first linear driving member is configured to drive the rotary driving member to move toward the turntable so that the output end of the rotary driving member is coaxially engaged with any of the transmission shafts; and / or,

[0014] The unlocking mechanism includes a second linear drive member and a clamping block, the clamping block is provided with a clamping slot with an upward opening, the clamping slot is configured to be able to be inserted into the positioning pin when the base frame is placed downward on the supporting station, and the second linear drive member is configured to be able to drive the clamping block to move in a direction away from the turntable, so that the clamping block drives the positioning pin to disengage from the positioning hole.

[0015] In some embodiments of the present invention, the steel strip feeding device also includes a positioning component, the lower surface of the base frame is provided with a plurality of positioning grooves with openings facing downwards, and the positioning component is provided in plurality, and is arranged in a one-to-one correspondence with the plurality of positioning grooves, and the positioning component includes a third linear drive member and a positioning member, the upper end of the positioning member is provided with a guide portion for inserting into the positioning groove, the third linear drive member is provided on the feeding bracket, and the third linear drive member is configured to drive the positioning member to drive the base frame to rise and fall.

[0016] In some embodiments of the present invention, the four sides of the support station are provided with a retaining plate, the retaining plate is connected to the loading bracket, and the retaining plate is configured to contact the side of the base frame when the base frame is placed on the support station; and / or,

[0017] The supporting station is provided with a plurality of universal balls for supporting the base frame, and the universal balls are connected to the loading bracket.

[0018] The second embodiment of the present invention provides an automatic cable tie device for battery cells, comprising:

[0019] The steel strip feeding device as described in any one of the embodiments of the first aspect;

[0020] A cable tie device having a cable tie station;

[0021] Double-speed chain conveyor line with movable unloading tray;

[0022] a first loading robot, configured to transfer the steel strip from the steel strip loading device to the cable tie station;

[0023] A second loading robot is configured to transfer the stacked battery modules to the cable tie station;

[0024] The unloading robot is configured to transfer the battery cell module that has been inserted into the steel strip from the tie-tying station to the unloading tray.

[0025] The automatic cable tie device for battery cells according to the embodiment of the second aspect of the present invention has at least the following beneficial effects: the steel strip loading device can lift the steel strips to a set height position so that the first loading robot can accurately grab the steel strips and accurately transfer them to the cable tie station of the cable tie device; the second loading robot transfers the stacked battery cell modules to the cable tie station of the cable tie device so that the steel strips can be inserted into the outer periphery of the battery cell modules; and the unloading robot transfers the battery cell modules with completed cable ties from the cable tie station of the cable tie device to the unloading tray of the double-speed chain conveyor line, so that the unloading tray moves with the battery cell modules, thereby completing the unloading of the battery cell modules.

[0026] In some embodiments of the present invention, the cable tie device includes:

[0027] The base is provided with a loading position, a unloading position and a steel strip loading position along the length direction;

[0028] A transfer platform, which is slidably connected to the base, and the transfer platform is provided with the cable tie station;

[0029] a linear drive mechanism configured to drive the transfer platform to move linearly relative to the base, so that the transfer platform can move to the steel strip loading position, the loading position, the steel strip loading position and the unloading position in sequence;

[0030] a shaping mechanism, which is provided on the base and is configured to shape the battery cell module on the transfer platform moved to the loading position;

[0031] A pressurizing mechanism, which is provided on the transfer platform and is configured to pressurize the battery cell module located on the strapping station so that the steel strap can be inserted into the battery cell module;

[0032] The lifting mechanism is provided on the transfer platform, and the lifting mechanism is configured to lift the steel strip located at the lower side of the battery cell module so that the steel strip can be inserted into the battery cell module.

[0033] In some embodiments of the present invention, the shaping mechanism includes a shaping plate and a driving component, wherein two shaping plates are provided and are respectively arranged on opposite sides of the loading position, and the driving component is configured to drive the shaping plate to approach or move away from the loading position, and the moving direction of the shaping plate is perpendicular to the moving direction of the transfer platform; and / or,

[0034] The pressurizing mechanism includes a pressurizing seat, a positioning seat and a fourth linear drive component. The positioning seat and the pressurizing seat are respectively arranged on opposite sides of the transfer platform along its moving direction. The fourth linear drive component is configured to drive the pressurizing seat to move toward the positioning seat to pressurize the battery cell module located at the cable tie station.

[0035] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the three-dimensional structure of a steel strip feeding device provided according to an embodiment of the present utility model;

[0037] Figure 2 This is a schematic diagram of the three-dimensional structure of a loading tray provided according to an embodiment of the utility model;

[0038] Figure 3 This is a schematic diagram of the three-dimensional structure of the loading bracket provided according to an embodiment of the utility model;

[0039] Figure 4It is a schematic diagram of the three-dimensional structure of the driving mechanism and the unlocking mechanism provided according to an embodiment of the utility model;

[0040] Figure 5 This is a top view of an automatic cable tie device for battery cells provided in accordance with an embodiment of the present utility model;

[0041] Figure 6 This is a schematic diagram of the three-dimensional structure of the automatic cable tie device for battery cells provided in accordance with an embodiment of the present utility model;

[0042] Figure 7 It is a schematic diagram of the three-dimensional structure of a cable tie device provided according to an embodiment of the utility model.

[0043] Reference numerals: 100, steel belt loading device; 110, loading tray; 111, spreading rod; 112, synchronous belt; 113, support block; 114, transmission shaft; 115, turntable; 116, positioning pin; 117, handwheel; 118, chassis; 119, pad; 120, loading bracket; 121, supporting frame; 122, universal ball; 123, first clamping plate; 124, positioning member; 125, third linear drive member; 126, second clamping plate; 130, driving mechanism; 131, connecting shaft; 132, rotating drive member; 133, first linear drive member; 134, supporting seat; 140, unlocking mechanism; 141, clamping block; 142, bayonet; 143, second linear drive member; 150, AGV trolley;

[0044] 200, first loading robot; 300, cable tie device; 310, shaping mechanism; 311, shaping plate; 312, driving component; 320, transfer platform; 321, moving seat; 322, second guide rail; 330, lifting mechanism; 331, fifth linear drive member; 332, lifting block; 340, base; 341, first guide rail; 342, rack; 351, pressure seat; 352, positioning seat; 353, fourth linear drive member; 400, second loading robot; 500, unloading robot; 600, double-speed chain conveyor line; 610, unloading tray; 710, battery cell module; 720, steel belt. DETAILED DESCRIPTION

[0045] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0046] In the description of the present invention, it should be understood that a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0047] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] Reference below Figures 1 to 7 The present invention describes a steel strip feeding device and an automatic strapping device for battery cells provided in accordance with an embodiment of the present invention.

[0049] like Figures 1 to 4 As shown, the steel strip feeding device 100 according to the first embodiment of the first aspect of the present invention can provide steel strip 720 for the battery cell module 710 to complete the feeding process. The steel strip feeding device 100 can improve the stability of the steel strip 720 during transportation, ensure high feeding accuracy, facilitate automated grasping, and help improve the efficiency of automatic strapping.

[0050] The steel strip feeding device 100 has a first direction, a second direction and an up-down direction, wherein the first direction, the second direction and the up-down direction are perpendicular to each other. In this embodiment, it is assumed that the first direction is the left-right direction and the second direction is the front-back direction.

[0051] The structure of the steel strip feeding device 100 includes a feeding bracket 120 and a feeding tray 110 .

[0052] The loading bracket 120 has a supporting station, which can provide sufficient support to the loading tray 110 so that the loading tray 110 is in a set position to accurately and automatically grab the steel strip 720 provided by the loading tray 110.

[0053] The structure of the loading tray 110 includes a base frame 118 , a support rod 111 , a circulating conveying mechanism and a driving mechanism 130 .

[0054] The base frame 118 can be positioned downwardly on the support station of the loading bracket 120. The shape of the base frame 118 is not limited, as long as it can provide a mounting location for the expansion rod 111, the circulating conveying mechanism, and the drive mechanism 130. The base frame 118 can be composed of aluminum profiles, metal rods, etc. Furthermore, the base frame 118 can be transported to the support station of the loading bracket 120 by an AGV (Automated Guided Vehicle) 150.

[0055] The length of the expansion rod 111 extends in the vertical direction, and the lower end of the expansion rod 111 is fixed to the base frame 118. There are multiple expansion rods 111, and the expansion rods 111 are arranged at regular intervals on the horizontal plane, so that the expansion rods 111 can form an expansion space for the steel belt 720 to be inserted from top to bottom.

[0056] In this embodiment, the expansion rods 111 are round rods, and multiple expansion rods 111 are arranged in a matrix. For example, the base frame 118 is provided with two groups of expansion rods 111 spaced apart along the second direction, and each group of expansion rods 111 includes seven expansion rods 111 spaced apart along the first direction. Therefore, the expansion space is rectangular when viewed from top to bottom, which is compatible with the square ring-shaped steel strip 720. Then, the steel strips 720 can be manually placed from top to bottom in the expansion space, so that the surface of each expansion rod 111 contacts the inner circumference of the steel strip 720, allowing the soft steel strip 720 to maintain its expanded state, forming a square ring shape, which is convenient for subsequent transfer by grabbing and sleeved on the outer periphery of the battery cell module 710.

[0057] Of course, it is not ruled out that in other embodiments, the expansion rod 111 adopts a triangular prism or a quadrangular prism-shaped rod body, and the corners of the rod body adopt an arc transition design.

[0058] Two sets of circulating conveying mechanisms are provided, one set of circulating conveying mechanisms being provided on one side of the expanded space in the horizontal direction, and the other set of circulating conveying mechanisms being provided on the opposite side of the expanded space in the horizontal direction. It is understood that in some examples, a set of circulating conveying mechanisms is provided on opposite sides of the expanded space in the second direction. In other examples, a set of circulating conveying mechanisms is provided on opposite sides of the expanded space in the first direction. Of course, it is not excluded that in other examples, a set of circulating conveying mechanisms is provided on opposite sides of the expanded space in the first direction and on opposite sides of the expanded space in the second direction.

[0059] Moreover, the circulating conveying mechanism is provided with a plurality of support blocks 113. The function of the support blocks 113 is to support the steel belt 720 so that the steel belt 720 can maintain a horizontal state. The plurality of support blocks 113 are arranged at uniform intervals along the circulating path of the circulating conveying mechanism. When the circulating conveying mechanism is running, the circulating conveying mechanism can drive the plurality of support blocks 113 to move along the circulating path.

[0060] In this embodiment, when the steel belt 720 is placed in the open space, the long side of the steel belt 720 extends along the first direction, and the short side of the steel belt 720 extends along the second direction. In order to lift the steel belt 720 more stably, two sets of circulating conveying mechanisms are arranged on opposite sides of the open space along the second direction, so that the support block 113 on the circulating conveying mechanism can support the long side of the steel belt 720.

[0061] The drive mechanism 130 is configured to drive the two sets of circulating conveying mechanisms to operate simultaneously, so that the support blocks 113 located on opposite sides of the expansion space can be raised and lowered synchronously. When the steel strips 720 are placed in the expansion space, the steel strips 720 will not only contact all the expansion rods 111 and maintain the expansion state, but also abut against the corresponding support blocks 113, obtaining a certain degree of support, so that the steel strips 720 maintain a stable horizontal state. At this time, the drive mechanism 130 can be used to drive the two sets of circulating conveying mechanisms to operate in opposite directions, prompting the support blocks 113 on the two sets of circulating conveying mechanisms to drive the corresponding steel strips 720 to move downward, so that the steel strips 720 can be neatly and orderly stored in the vertical direction.

[0062] When it is necessary to grab the steel belt 720, the driving mechanism 130 drives the two sets of circulating conveying mechanisms to work simultaneously, so that the support blocks 113 on the two sets of circulating conveying mechanisms can drive the corresponding steel belts 720 to move upward, so as to lift the steel belts 720 in turn to the set height position, ensuring that the steel belts 720 can be accurately and stably grabbed at the same position, thereby improving the feeding accuracy.

[0063] It is understood that the drive mechanism 130 includes a motor and a transmission structure. The transmission structure can be a coupling, a speed reducer, or an intermittent divider, etc. The motor drives the circulating conveyor mechanism through the transmission structure. The drive mechanism 130 is mounted on the base frame 118 and can move with the base frame 118. In this case, a battery can be installed on the base frame 118 to power the drive mechanism 130. Alternatively, after the loading tray 110 is transferred to the loading bracket 120, the drive mechanism 130 can be manually connected to the mains power supply.

[0064] In some examples, each set of circulating conveying mechanisms is equipped with a motor and a transmission structure. In other examples, only one drive mechanism 130 is provided, which drives one set of circulating conveying mechanisms. Furthermore, a gear transmission structure, a belt transmission structure, etc. is used between the two sets of circulating conveying mechanisms to generate power transmission between the two sets of circulating conveying mechanisms, so that the two sets of circulating conveying mechanisms can operate simultaneously.

[0065] In this embodiment, each set of circulating conveying mechanisms includes a transmission shaft 114, a synchronous pulley, and a synchronous belt 112. The transmission shaft 114 is mounted on a base frame 118 via a bearing seat, allowing the transmission shaft 114 to be rotatably mounted on the base frame 118. Two transmission shafts 114 are provided, and they are spaced apart vertically. Because the long side of the steel belt 720 extends in the first direction, the length of the transmission shaft 114 can be designed to extend in the first direction.

[0066] Each drive shaft 114 is equipped with multiple synchronous pulleys, each of which is coaxially arranged with the corresponding drive shaft 114. Moreover, the multiple synchronous pulleys are arranged at regular intervals along the extension direction of the drive shaft 114, and the drive shaft 114 can drive the corresponding synchronous pulleys to rotate simultaneously. For example, three synchronous pulleys are provided on each drive shaft 114, and the two sets of circulating conveying mechanisms are symmetrically arranged with respect to the open space. The synchronous pulleys located on the upper and lower sides are wound around a synchronous belt 112, and the synchronous belt 112 is equipped with multiple support blocks 113, which are arranged at intervals along the circulation path of the synchronous belt 112. The support blocks 113 and the synchronous belt 112 are arranged with the same width, and the support blocks 113 and the synchronous belt 112 are integrally formed.

[0067] Two of the transmission shafts 114 located on opposite sides of the expanded space can be connected by a gear transmission structure, a belt transmission structure, etc., and the output end of the driving mechanism 130 is connected to any transmission shaft 114. When the driving mechanism 130 is working, the output end of the driving mechanism 130 can drive all the transmission shafts 114 to rotate, allowing the transmission shaft 114 to drive the synchronous belt 112 to work through the synchronous pulley, so that the synchronous belts 112 located on opposite sides of the expanded space can circulate in opposite directions, so that the support block 113 on the synchronous belt 112 can drive the steel belt 720 to move up or down.

[0068] Of course, it is not ruled out that in other embodiments, the circulating conveying mechanism uses a chain instead of the synchronous belt 112, and uses a sprocket instead of the synchronous pulley.

[0069] In the steel strip feeding device 100 provided in the first embodiment of the first aspect of the present invention, since a plurality of expansion rods 111 are provided on the base frame 118 of the feeding tray 110, the plurality of expansion rods 111 are arranged at intervals on the horizontal plane, and together define an expansion space suitable for the rectangular ring-shaped steel strip 720 to be inserted. Therefore, when the rectangular ring-shaped steel strip 720 is manually placed in the expansion space from top to bottom, the inner circumference of the steel strip 720 is in contact with the plurality of expansion rods 111, so that the steel strip 720 can maintain a normal expansion state and will not be deformed, which is convenient for subsequent automatic The steel belt 720 is directly put on the battery module 710 from top to bottom in a optimized manner; moreover, since a group of circulating conveying mechanisms are provided on opposite sides of the expanded space, the circulating conveying mechanisms are provided with multiple support blocks 113 along their circulating paths. Therefore, when the steel belt 720 is placed in the expanded space, the support blocks 113 located on opposite sides of the steel belt 720 can provide a certain support to the steel belt 720, so that the steel belt 720 can maintain a stable horizontal state at a set height position. Then, the steel belts 720 can be placed in the expanded space from top to bottom and stored neatly and orderly.

[0070] During the process of the loading tray 110 being transported to the supporting station of the loading bracket 120, since each steel belt 720 can simultaneously obtain the spreading effect exerted by multiple spreading rods 111 and the supporting effect exerted by the support blocks 113 located on the opposite sides of the spreading space, the steel belt 720 can maintain a stable state on the horizontal plane and is not easy to shake. Therefore, it can be ensured that the steel belt 720 has high stability during transportation and is not prone to position displacement, thereby ensuring that the steel belts 720 are subsequently lifted in a stable horizontal state and sent to the set height position.

[0071] When the loading tray 110 is placed on the supporting station of the loading bracket 120, the driving mechanism 130 is operated to drive the circulating conveying mechanisms located on the opposite sides of the steel belt 720 to move in opposite directions, so that the support blocks 113 located on the opposite sides of the open space can rise synchronously, so as to lift the steel belts 720 one by one to the set height position, thereby improving the feeding accuracy and facilitating the automatic and accurate grasping of the steel belts 720 at the same height position, which helps to improve the efficiency of automatic strapping of the battery cell module 710.

[0072] When all the steel strips 720 on the loading tray 110 are grabbed and transferred, the empty loading tray 110 is moved away so that it can be reloaded with steel strips 720. At the same time, the next loading tray 110 fully loaded with steel strips 720 is transported to the loading bracket 120 to replenish new steel strips 720 for the battery cell module 710 binding work.

[0073] like Figures 1 to 4As shown, the steel strip feeding device 100 according to the second embodiment of the first aspect of the utility model is different from the first embodiment in that the steel strip feeding device 100 also includes an unlocking mechanism 140, a handwheel 117, a positioning pin 116 and a turntable 115, and the unlocking mechanism 140 and the driving mechanism 130 are both separately arranged from the base frame 118.

[0074] Because the unlocking mechanism 140 and the driving mechanism 130 are both designed to be separate from the base frame 118 and do not move with the base frame 118, the unlocking mechanism 140 and the driving mechanism 130 can be fixedly mounted on one side of the support station of the loading bracket 120. In this embodiment, a support base 134 is provided on one side of the loading bracket 120, and the unlocking mechanism 140 and the driving mechanism 130 are fixed to the support base 134 by bolts.

[0075] A handwheel 117 is connected to any one of the transmission shafts 114. Two of the transmission shafts 114 on opposite sides of the open space are connected by a transmission mechanism. Therefore, turning the handwheel 117 can simultaneously drive all of the transmission shafts 114. Each transmission shaft 114 is provided with a turntable 115 coaxially disposed with the transmission shaft 114. Furthermore, the transmission shaft 114 can be detachably engaged with the output end of the drive mechanism 130.

[0076] It will be appreciated that in some examples, the handwheel 117 and the turntable 115 are both disposed on the same transmission shaft 114, with the turntable 115 and the handwheel 117 located at opposite ends of the transmission shaft 114. In other examples, the handwheel 117 and the turntable 115 are respectively disposed on two transmission shafts 114 located on the same side of the expansion space. In still other examples, the handwheel 117 and the turntable 115 are respectively disposed on two transmission shafts 114 located on opposite sides of the expansion space.

[0077] In this embodiment, the hand wheel 117 is disposed at the end of one of the transmission shafts 114 located at the lower side, and the turntable 115 is disposed on the other transmission shaft 114 located at the lower side.

[0078] When the loading tray 110 is transferred to the loading bracket 120, the transmission shaft 114 with the turntable 115 can be engaged with the output end of the driving mechanism 130, so that the driving mechanism 130 can drive all the transmission shafts 114 to rotate. When the loading tray 110 is transferred away from the loading bracket 120, the output end of the driving mechanism 130 will be separated from the transmission shaft 114 with the turntable 115 to release the engagement therebetween.

[0079] In a specific embodiment, the drive mechanism 130 includes a rotary drive member 132 and a first linear drive member 133. The output end of the first linear drive member 133 is connected to the rotary drive member 132. The first linear drive member 133 is configured to drive the rotary drive member 132 toward the turntable 115 so that the output end of the rotary drive member 132 is coaxially engaged with any one of the transmission shafts 114. The rotary drive member 132 may include a motor and a reducer. The first linear drive member 133 may be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or a linear module.

[0080] For example, a coupling shaft is provided at the end of the transmission shaft 114 with the rotating disk 115, and the axial direction of the coupling shaft is perpendicular to the axial direction of the transmission shaft 114. Correspondingly, the connecting shaft 131 of the rotary drive member 132 is axially aligned with the transmission shaft 114. The connecting shaft 131 is provided with a socket for inserting the transmission shaft 114 and a coupling interface for coupling with the coupling shaft. Therefore, through the driving action of the first linear drive member 133, the rotary drive member 132 can move along the axial direction of the transmission shaft 114 with the rotating disk 115, so that the connecting shaft 131 of the rotary drive member 132 can dock with the transmission shaft 114 or release the coupling action.

[0081] Of course, it is not excluded that in other embodiments, when the loading tray 110 is placed from top to bottom on the loading bracket 120, the end of the transmission shaft 114 with the turntable 115 can abut against the output end of the rotary drive member 132 and form a wedging connection. It is also not excluded that in still other embodiments, when the loading tray 110 moves horizontally on the loading bracket 120, the end of the transmission shaft 114 with the turntable 115 can be inserted into the output end of the rotary drive member 132 and form a clamping connection, at which time the loading tray 110 just moves to the support position.

[0082] The turntable 115 is provided with a plurality of positioning holes, and the plurality of positioning holes are arranged at uniform intervals along the circumference of the turntable 115. The positioning holes can be circular holes. The positioning pin 116 is slidably connected to the base frame 118, and the sliding direction of the positioning pin 116 is consistent with the direction of the central axis of the turntable 115. Specifically, the base frame 118 is provided with a guide hole, and the positioning pin 116 is passed through the guide hole and is in sliding contact with the inner circumference of the guide hole. Moreover, the positioning pin 116 is configured to be inserted into any positioning hole on the turntable 115, so that the positioning pin 116 can exert a clamping limit effect on the turntable 115, so that the turntable 115 and all the transmission shafts 114 cannot rotate, thereby ensuring that the support block 113 and the steel belt 720 can maintain a fixed state, avoiding the displacement of the steel belt 720 in the up and down directions and affecting the feeding accuracy.

[0083] The unlocking mechanism 140 is configured to drive the positioning pin 116 out of the positioning hole to release the locking and anti-rotation effect of the positioning pin 116 on the turntable 115, so that the driving mechanism 130 can drive all the transmission shafts 114 to rotate during operation, thereby realizing the steel belt 720 to rise for feeding, or so as to drive all the transmission shafts 114 to rotate through the handle, thereby realizing the steel belts 720 to move downward following the corresponding support blocks 113 and be stored.

[0084] In a specific embodiment, the unlocking mechanism 140 includes a second linear drive member 143 and a clamping block 141. The clamping block 141 is provided with a bayonet 142 with an upward opening, and the bayonet 142 is configured to be able to be inserted into the positioning pin 116 when the base frame 118 is placed downward on the support station, so that a clamping effect can be generated between the positioning pin 116 and the clamping block 141. The output end of the second linear drive member 143 is connected to the clamping block 141, and the second linear drive member 143 is configured to drive the clamping block 141 to move in a direction away from the turntable 115, so that the clamping block 141 drives the positioning pin 116 out of the positioning hole. The second linear drive member 143 can be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder or a linear module, etc. The moving direction of the clamping block 141 is consistent with the axial direction of the positioning pin 116.

[0085] The positioning pin 116 is T-shaped as a whole, that is, the head of the positioning pin 116 is a clamping portion. When the base frame 118 moves downward to the supporting position of the loading bracket 120, the positioning pin 116 can be placed in the clamping hole 142. At this time, the second linear drive member 143 is activated, and the second linear drive member 143 drives the clamping block 141 to move linearly along the axial direction of the positioning pin 116 in the direction away from the turntable 115. The clamping block 141 can apply a pulling force to the clamping portion of the positioning pin 116 to pull the positioning pin 116 out of the positioning hole, thereby unlocking the turntable 115. When all the steel strips 720 on the loading tray 110 have been grabbed, the second linear drive member 143 drives the clamping block 141 to move in the opposite direction to complete the reset of the clamping block 141. At this time, the unloaded loading tray 110 can be lifted upward and transferred from the loading bracket 120.

[0086] When the steel belt 720 is not being loaded or fed, the turntable 115 is clamped by the positioning pin 116, so that the turntable 115 and the transmission shaft 114 are not easily moved, thereby ensuring that the steel belt 720 on the loading tray 110 is stable and motionless.

[0087] Furthermore, the steel strip feeding device 100 also includes a return spring. The return spring is sleeved on the positioning pin 116, one end of the return spring is fixedly connected to one end of the positioning pin 116, and the other end of the return spring is fixedly connected to the base frame 118. The return spring is configured to drive the positioning pin 116 to move toward the turntable 115 so that the positioning pin 116 can be inserted into any positioning hole of the turntable 115, thereby achieving the reset of the positioning pin 116. It is understandable that when the clamping block 141 is reset under the driving action of the second linear drive member 143, the positioning pin 116 will also be reset due to the elastic force of the return spring and accurately inserted into one of the positioning holes of the turntable 115 to lock the turntable 115.

[0088] Of course, in other embodiments, the unlocking mechanism 140 may include an electromagnet capable of generating a magnetic force on the positioning pin 116. The electromagnet exerts a magnetic attraction on the positioning pin 116, thereby releasing the positioning pin 116 from the positioning hole. Alternatively, a permanent magnet may be provided on the positioning pin 116, eliminating the need for a return spring. The electromagnet exerts a magnetic repulsive force on the permanent magnet on the positioning pin 116, thereby automatically inserting the positioning pin 116 into the positioning hole.

[0089] In the steel strip feeding device 100 provided in Example 2 of the first aspect of the present invention, since the unlocking mechanism 140 and the driving mechanism 130 are both separately arranged from the base frame 118, there is no need to install the driving mechanism 130 and the battery for powering the driving mechanism 130 on each base frame 118, which greatly reduces the overall weight of the feeding tray 110, reduces costs, and facilitates transportation; moreover, when manually storing the steel strips 720 neatly on the feeding tray 110, the handle is used to start the rotation of all the drive shafts 114, and during the transportation of the feeding tray 110, the locking effect applied to the turntable 115 by the positioning pin 116 is used to keep the support block 113 and the steel strip 720 in a stable horizontal state, ensuring that the position of the steel strip 720 does not change during transportation, thereby ensuring high feeding accuracy.

[0090] When the loading tray 110 is placed on the supporting station of the loading bracket 120, the first linear drive member 133 is used to drive the output end of the rotating drive member 132 to be clamped with the transmission shaft 114 with the turntable 115, and the second linear drive member 143 is used to drive the clamping block 141 to drive the positioning pin 116 to move, so that the positioning pin 116 is disengaged from the positioning hole of the turntable 115, releasing the locking effect, and prompting the rotating drive member 132 to drive all the transmission shafts 114 to rotate, so that the support block 113 can lift the corresponding steel belt 720 to the set height position, so that the steel belt 720 can be easily and accurately grasped.

[0091] In some embodiments, as Figure 3As shown, the steel strip feeding device 100 further includes a positioning component. A plurality of positioning slots are provided on the lower surface of the base frame 118, with the openings of the positioning slots facing downward. A plurality of positioning components are provided, and the number of positioning components and the number of positioning slots are the same. Furthermore, the plurality of positioning components and the plurality of positioning slots are provided in a one-to-one correspondence.

[0092] The positioning component includes a third linear drive 125 and a positioning member 124. The upper end of the positioning member 124 is provided with a guide portion for insertion into the positioning slot. The third linear drive 125 is fixed to the loading bracket 120. The output end of the third linear drive 125 is connected to the positioning member 124. The third linear drive 125 is configured to drive the positioning member 124 to move vertically, allowing the positioning member 124 to drive the base frame 118 to move upward and downward. The third linear drive 125 can be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or a linear module.

[0093] In this embodiment, the loading bracket 120 includes two support frames 121 spaced apart along the second direction, allowing the AGV 150 to move between the two support frames 121, allowing the loading tray 110 to be placed downwardly on the support station. The positioning member 124 can be of any shape, as long as it provides support and positioning for the loading tray 110. Two positioning members are provided, located on opposite sides of the same support frame 121 along the first direction.

[0094] It is understood that after the AGV 150 moves into position along the first direction, the third linear drive 125 operates to drive the positioning member 124 upward, allowing the guide portion of the positioning member 124 to be inserted into the positioning slot of the base frame 118 and adjusting the horizontal position of the base frame 118 relative to the positioning member 124. After the positioning member 124 lifts the loading tray 110, the AGV 150 can leave. Then, the positioning member 124 drives the loading tray 110 downward under the driving action of the third linear drive 125, so that the loading tray 110 accurately lands on the support station. When all the steel strips 720 on the loading tray 110 are consumed, the third linear drive 125 will drive the positioning member 124 to move the loading tray 110 upward, and then the AGV 150 moves to a position below the loading tray 110 to receive the loading tray 110.

[0095] Further, such as Figure 3 As shown, there are retaining plates on all four sides of the support station, which are fixedly connected to the loading bracket 120. The retaining plates are configured to contact the side surfaces of the base frame 118 when the base frame 118 is placed on the support station, thereby retaining the base frame 118.

[0096] In this embodiment, each supporting frame 121 is provided with a first locking plate 123 on the side away from the supporting station along the second direction, and each supporting frame 121 is provided with a second locking plate 126 on the opposite sides along the first direction. The first locking plate 123 and the second locking plate 126 are both L-shaped. The first locking plate 123 and the second locking plate 126 cooperate with each other to apply a limiting effect to the base frame 118 in the front and rear directions and the left and right directions, so that the base frame 118 can maintain a good and stable state on the supporting station, making it convenient for the driving mechanism 130 to dock with the transmission shaft 114 with the turntable 115. Moreover, in the process of the driving mechanism 130 driving the transmission shaft 114 to rotate, the base frame 118 remains fixed due to the limiting effect and will not shift in position, thereby ensuring high feeding accuracy.

[0097] Further, such as Figure 3 As shown, the support station is equipped with multiple universal balls 122 for supporting the base frame 118, which is connected to the loading bracket 120. Specifically, the lower surface of the base frame 118 is provided with multiple pads 119. When the loading tray 110 is placed on the support station, the pads 119 on the base frame 118 will abut against the universal balls 122. Because the lower portion of the base frame 118 is mainly composed of square rods, if the square rods directly abut against the universal balls 122, the square rods will easily deform. Therefore, the pads 119 are added.

[0098] like Figures 1 to 7 As shown, the automatic strapping equipment for battery cells according to the second embodiment of the present utility model is an important component of the square shell battery assembly line, and has the functions of automatic loading of steel strips 720, pre-embedding of steel strips 720, loading of battery cell modules 710, inserting of steel strips 720, and unloading of battery cell modules 710, and can automatically install steel strips 720 on battery cell modules 710.

[0099] The automatic cable tie equipment for battery cells includes a cable tie device 300, a double-speed chain conveyor line 600, a first loading robot 200, a second loading robot 400, a unloading robot 500 and a steel strip loading device 100 as in the first embodiment.

[0100] The strapping device 300 has a strapping station, which can provide a placement position for the battery module 710 to be inserted into the steel strip 720. Specifically, Figure 7 As shown, the cable tie device 300 includes a base 340 , a transfer platform 320 , a linear drive mechanism, a shaping mechanism 310 , a pressurizing mechanism, and a lifting mechanism 330 .

[0101] The base 340 is provided with a loading position, a unloading position, and a steel strip loading position along its length. In this embodiment, the length of the base 340 extends along the second direction, and the loading position, unloading position, and steel strip loading position are located at different positions along the length of the base 340, separated from each other and independently arranged, which helps improve the efficiency of the tie-tying process.

[0102] In some examples, the loading position, the unloading position, and the steel strip loading position are sequentially arranged along the length of the base 340. In other examples, the loading position, the steel strip loading position, and the unloading position are sequentially arranged along the length of the base 340.

[0103] The cable tie station is located on the transfer platform 320, allowing the battery cell module 710 to be placed on the transfer platform 320 and the steel strap 720 to be installed. The transfer platform 320 is slidably connected to the base 340, allowing the transfer platform 320 to slide along the length of the base 340. The linear drive mechanism is configured to drive the transfer platform 320 in linear motion relative to the base 340, allowing the transfer platform 320 to move sequentially to the steel strap loading position, the loading position, the steel strap loading position, and the unloading position.

[0104] Specifically, the base 340 is provided with two first guide rails 341 extending along the length of the base 340. Accordingly, the transfer platform 320 is provided with a first slider slidably connected to the first guide rails 341. Furthermore, the linear drive mechanism includes a rack 342, a gear, and a motor. The rack 342 extends along the length of the base 340 and is mounted on the base 340. The motor is mounted on the transfer platform 320. The gear is mounted on the output shaft of the motor and meshes with the rack 342. Therefore, when the motor is running, the gear rotates relative to the rack 342 and moves along the rack 342, allowing the transfer platform 320 to move smoothly and linearly along the first guide rails 341.

[0105] The shaping mechanism 310 is disposed on the base 340 , and is configured to shape the battery cell module 710 on the transfer platform 320 that moves to the loading position.

[0106] In a specific embodiment, the shaping mechanism 310 includes a shaping plate 311 and a drive component 312. Two shaping plates 311 are provided, one on each side of the loading position, and the other can move closer to or further away from the base 340. The drive component 312 is configured to drive the shaping plates 311 toward or away from the loading position, with the movement direction of the shaping plates 311 being perpendicular to the movement direction of the transfer platform 320. The drive component 312 may include at least one telescopic cylinder mounted on the base 340, with a movable rod of the telescopic cylinder fixedly connected to the shaping plate 311.

[0107] When the battery cell module 710 on the transfer platform 320 is located at the loading position of the base 340, under the driving action of the driving component 312, the two shaping plates 311 approach each other and contact the long side position of the battery cell module 710, so that the two shaping plates 311 can perform a shaping and positioning effect on the battery cell module 710 located at the loading position, so that the long side position of the battery cell module 710 is flat and not bumpy, so that the steel belt 720 can be placed from top to bottom on the outer periphery of the battery cell module 710 later.

[0108] The pressurizing mechanism is disposed on the transfer platform 320 , and is configured to pressurize the battery cell module 710 located on the strapping station so that the steel strap 720 can be inserted into the battery cell module 710 .

[0109] In one specific embodiment, the pressurizing mechanism includes a pressurizing seat 351, a positioning seat 352, and a fourth linear drive member 353. The positioning seat 352 is positioned on one side of the transfer platform 320 along its moving direction, while the pressurizing seat 351 is positioned on the opposite side of the transfer platform 320 along its moving direction. The fourth linear drive member 353 is configured to drive the pressurizing seat 351 toward the positioning seat 352 to apply pressure to the battery cell module 710 located at the cable tie station. The fourth linear drive member 353 can be a linear drive device such as a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0110] In this embodiment, the transfer platform 320 includes a moving seat 321 and two second guide rails 322. The second guide rails 322 extend along the moving direction of the pressurizing seat 351. The second guide rails 322 are installed on the moving seat 321. Accordingly, the pressurizing seat 351 is provided with a second slider slidingly connected to the second guide rail 322. The positioning seat 352 is fixedly set on the moving seat 321. The fourth linear drive member 353 is installed on the moving seat 321. The output end of the fourth linear drive member 353 is connected to the pressurizing seat 351. The moving seat 321 is provided with a cable tie station.

[0111] After the battery cell module 710 is transferred to the cable tie station, the fourth linear drive member 353 can be used to drive the pressurizing seat 351 close to the positioning seat 352. The positioning seat 352 and the pressurizing seat 351 cooperate with each other to make the battery cell module 710 subject to pressure in its length direction so that the steel belt 720 can be inserted into the periphery of the battery cell module 710. Then, the fourth linear drive member 353 drives the pressurizing seat 351 away from the positioning seat 352 to release the pressure on the battery cell module 710, allowing the battery cell module 710 to expand to its original state and support the steel belt 720, so that the steel belt 720 is fixed relative to the battery cell module 710.

[0112] The lifting mechanism 330 is disposed on the transfer platform 320 . The lifting mechanism 330 is configured to lift the steel strip 720 located below the battery cell module 710 so that the steel strip 720 can be inserted into the battery cell module 710 .

[0113] In one specific embodiment, the lifting mechanism 330 includes a lifting block 332 and a fifth linear drive member 331. The lifting block 332 is located above the fifth linear drive member 331. The output end of the fifth linear drive member 331 is connected to the lifting block 332 to drive the lifting block 332 to move vertically. The fifth linear drive member 331 can be a linear drive device such as a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder.

[0114] Before the battery cell module 710 is placed on the tie-tying station, the steel belt 720 can be placed in advance on the tie-tying station. At this time, the steel belt 720 can be supported by the lifting block 332. Then, the battery cell module 710 is placed on the tie-tying station, and the battery cell module 710 is located above the steel belt 720. Then, the battery cell module 710 is pressurized, and then the steel belt 720 is lifted by the lifting block 332 so that the steel belt 720 can be put upward on the outer periphery of the battery cell module 710. At the same time, another steel belt 720 is put on the outer periphery of the battery cell module 710 from top to bottom, so that there are two upper and lower steel belts 720 on the battery cell module 710 at the same time.

[0115] The double-speed chain conveyor line 600 has a movable unloading tray 610. It can be understood that the double-speed chain conveyor line 600 is a prior art, and those skilled in the art should understand its specific structure and working principle, which will not be explained here.

[0116] The first loading robot 200 is configured to transfer the steel strip 720 from the steel strip loading device 100 to the cable-tying station. The second loading robot 400 is configured to transfer the stacked battery modules 710 to the cable-tying station. The unloading robot 500 is configured to transfer the battery modules 710, which have been sleeved with the steel strip 720, from the cable-tying station to the unloading tray 610.

[0117] It is understood that the second loading robot 400 and the unloading robot 500 can have the same structure, both including multiple pneumatic grippers and a multi-axis robotic arm, or multiple pneumatic grippers and multiple linear modules, using the pneumatic grippers to stably clamp the battery cell module 710. The first loading robot 200 includes multiple pneumatic fingers and a multi-axis robotic arm, or multiple pneumatic fingers and multiple linear modules, using the pneumatic fingers to clamp the steel strip 720.

[0118] In this embodiment, the first loading robot 200 and the second loading robot 400 are both multi-axis robots, and the unloading robot 500 is a three-dimensional linear module. There are two cable tie devices 300, which are arranged at intervals, and two steel strip loading devices 100 are provided, which are arranged at intervals. Since the loading and unloading of the battery cell module 710 use the second loading robot 400 and the unloading robot 500 of different structures, the restrictions on the weight, width and other conditions of the battery cell module 710 can be reduced. The first loading robot 200 can place the two battery cell modules 710 on the cable tie station in turn, arranged side by side, and the unloading robot 500 can simultaneously transfer the two side-by-side battery cell modules 710 with the steel strip 720 installed, thereby being compatible with the production line of double-row battery cell modules 710 and improving the compatibility of the automatic cable tie equipment for the battery cells.

[0119] It is understood that the cable tie device 300, the double-speed chain conveyor line 600, the first loading robot 200, the second loading robot 400, the unloading robot 500, and the steel strip loading device 100 can be arranged according to actual site conditions and are not specifically limited. For the various components of the automatic cable tie device for battery cells, if the structure of the component requires functions such as precise positioning and position detection, photoelectric switches, through-beam photoelectric sensors, etc. can be added.

[0120] When using the automatic cell strapping device provided by the embodiment of the second aspect of the present invention, the AGV trolley 150 transports the loading tray 110 fully loaded with steel strips 720 to the support station of the loading bracket 120. After the loading tray 110 is positioned, the drive mechanism 130 drives the circulating conveying mechanism to operate, so that the support block 113 delivers the corresponding steel strip 720 to a set height position, providing the steel strip 720 for the cell module 710 strapping work. Using the AGV trolley 150 to automatically transport the loading tray 110 reduces manpower input and facilitates management.

[0121] Since the steel strip feeding device 100 can lift each steel strip 720 in turn to a set height, the first feeding robot 200 operates and accurately grabs the steel strip 720 at the steel strip feeding device 100. Then, the steel strip 720 is accurately transferred to the strapping station of the strapping device 300 to complete the pre-embedding of the steel strip 720. At this time, the transfer platform 320 has moved to the steel strip feeding position of the base 340. The steel strip feeding device 100 has a fixed feeding position and high feeding accuracy, which facilitates the first feeding robot 200 to automatically, quickly and accurately grab the steel strip.

[0122] The transfer platform 320 then moves to the loading position of the base 340 to receive the battery cell modules 710. Next, the second loading robot 400 transfers the stacked battery cell modules 710 to the tie-tying station on the transfer platform 320. The shaping mechanism 310 then shapes and positions the battery cell modules 710 at the tie-tying station. After shaping and positioning, the pressing mechanism applies pressure to the battery cell modules 710, compressing them as a whole.

[0123] Then, the transfer platform 320 moves with the battery module 710 to the steel strip loading position of the base 340. During the movement process or after the transfer platform 320 moves to the steel strip loading position, the pre-buried steel strip 720 can be lifted upward by the lifting mechanism 330 and placed on the lower part of the battery module 710. Next, the first loading robot 200 clamps a steel strip 720 from the steel strip loading device 100 and places the steel strip 720 on the upper part of the battery module 710 from top to bottom. When the upper and lower parts of the battery module 710 are both covered with steel strips 720, the pressure mechanism can stop applying pressure to the battery module 710, allowing the battery module 710 to expand and press against the steel strip 720, preventing the steel strip 720 from shifting up and down relative to the battery module 710. At this point, the battery module 710 has been tied with two steel strips 720. In this way, automatic cable tie binding can be achieved, reducing manpower input and improving the efficiency of cable tie binding.

[0124] Finally, the transfer platform 320 moves the battery cell module 710 to the unloading position of the base 340, allowing the unloading robot 500 to clamp the battery cell module 710 with the tie and transfer it from the tie station to the unloading tray 610 of the double-speed chain conveyor line 600, so that the battery cell module 710 can follow the unloading tray 610 to move to the next process, thereby completing the unloading work of the battery cell module 710.

[0125] When the steel strips 720 on the loading tray 110 are consumed, the empty loading tray 110 is transferred from the loading bracket 120 by the AGV trolley 150, and the steel strips 720 are loaded onto the loading tray 110 one by one manually.

[0126] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0127] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Steel strip feeding device, characterized in that: include: a loading bracket having a supporting station; The loading tray includes a base frame, a support rod, a circulating conveying mechanism and a driving mechanism. The base frame can be placed downward on the supporting station. The support rod extends in the up and down directions and is arranged on the base frame. There are multiple support rods, which are arranged at intervals on the horizontal plane to form a support space for the steel belt to be inserted from top to bottom. A group of the circulating conveying mechanism is provided on opposite sides of the support space in the horizontal direction. The circulating conveying mechanism is provided with multiple support blocks for supporting the steel belt. Multiple support blocks are evenly spaced along the circulating path of the circulating conveying mechanism. The driving mechanism is configured to drive two groups of the circulating conveying mechanisms to operate so that the support blocks located on opposite sides of the support space can be raised and lowered synchronously.

2. The steel strip feeding device according to claim 1, characterized in that: The expansion rods are round rods, and a plurality of the expansion rods are arranged in a matrix. The expansion space is rectangular when viewed from top to bottom.

3. The steel strip feeding device according to claim 1, characterized in that: Each group of the circulating conveying mechanism includes a transmission shaft, a synchronous pulley and a synchronous belt. The transmission shaft can be rotatably arranged on the base frame. There are two transmission shafts, which are arranged at intervals in the upper and lower directions. Each transmission shaft is provided with a plurality of synchronous pulleys at intervals along its extension direction. The synchronous pulleys on the upper and lower sides are wrapped with the synchronous belts. The synchronous belts are provided with a plurality of support blocks at intervals along their circulation path. Two of the transmission shafts located on opposite sides of the open space are connected for transmission. The output end of the driving mechanism is connected to any one of the transmission shafts to drive the synchronous belts located on opposite sides of the open space to circulate in opposite directions.

4. The steel strip feeding device according to claim 3, characterized in that: It also includes an unlocking mechanism, a handwheel, a positioning pin and a turntable, the unlocking mechanism and the driving mechanism are both separately arranged from the base frame, the handwheel is connected to any of the transmission shafts, any of the transmission shafts is coaxially provided with the turntable and can be separately engaged with the output end of the driving mechanism, the turntable is provided with a plurality of positioning holes evenly spaced along its circumference, the positioning pin is slidably connected to the base frame, the positioning pin is configured to be inserted into any of the positioning holes, and the unlocking mechanism is configured to drive the positioning pin out of the positioning hole.

5. The steel strip feeding device according to claim 4, characterized in that: The driving mechanism includes a rotary driving member and a first linear driving member, wherein the first linear driving member is configured to drive the rotary driving member to move toward the turntable so that the output end of the rotary driving member is coaxially engaged with any one of the transmission shafts; and / or, The unlocking mechanism includes a second linear drive member and a clamping block, the clamping block is provided with a clamping slot with an upward opening, the clamping slot is configured to be able to be inserted into the positioning pin when the base frame is placed downward on the supporting station, and the second linear drive member is configured to be able to drive the clamping block to move in a direction away from the turntable, so that the clamping block drives the positioning pin to disengage from the positioning hole.

6. The steel strip feeding device according to claim 1, characterized in that: It also includes a positioning component, and the lower surface of the base frame is provided with a plurality of positioning grooves with openings facing downwards. There are multiple positioning components, and they are arranged in a one-to-one correspondence with the multiple positioning grooves. The positioning component includes a third linear drive member and a positioning member. The upper end of the positioning member is provided with a guide portion for inserting into the positioning groove. The third linear drive member is provided on the loading bracket, and the third linear drive member is configured to drive the positioning member to drive the base frame to rise and fall.

7. The steel strip feeding device according to claim 6, characterized in that: The four sides of the support station are provided with a retaining plate, the retaining plate is connected to the loading bracket, and the retaining plate is configured to contact the side of the base frame when the base frame is placed on the support station; and / or, The supporting station is provided with a plurality of universal balls for supporting the base frame, and the universal balls are connected to the loading bracket.

8. Automatic strapping equipment for battery cells, characterized in that: include: The steel strip feeding device according to any one of claims 1 to 7; A cable tie device having a cable tie station; Double-speed chain conveyor line with movable unloading tray; a first loading robot, configured to transfer the steel strip from the steel strip loading device to the cable tie station; A second loading robot is configured to transfer the stacked battery modules to the cable tie station; The unloading robot is configured to transfer the battery cell module that has been inserted into the steel strip from the tie-tying station to the unloading tray.

9. The automatic strapping device for battery cells according to claim 8, characterized in that: The cable tie device comprises: The base is provided with a loading position, a unloading position and a steel strip loading position along the length direction; A transfer platform, which is slidably connected to the base, and the transfer platform is provided with the cable tie station; a linear drive mechanism configured to drive the transfer platform to move linearly relative to the base, so that the transfer platform can move to the steel strip loading position, the loading position, the steel strip loading position and the unloading position in sequence; a shaping mechanism, which is provided on the base and is configured to shape the battery cell module on the transfer platform moved to the loading position; A pressurizing mechanism, which is provided on the transfer platform and is configured to pressurize the battery cell module located on the strapping station so that the steel strap can be inserted into the battery cell module; The lifting mechanism is provided on the transfer platform, and the lifting mechanism is configured to lift the steel strip located at the lower side of the battery cell module so that the steel strip can be inserted into the battery cell module.

10. The automatic strapping device for battery cells according to claim 9, characterized in that: The shaping mechanism includes a shaping plate and a driving component. The shaping plates are provided in two pieces and are respectively arranged on opposite sides of the loading position. The driving component is configured to drive the shaping plates to approach or move away from the loading position. The moving direction of the shaping plates is perpendicular to the moving direction of the transfer platform. And / or, The pressurizing mechanism includes a pressurizing seat, a positioning seat and a fourth linear drive component. The positioning seat and the pressurizing seat are respectively arranged on opposite sides of the transfer platform along its moving direction. The fourth linear drive component is configured to drive the pressurizing seat to move toward the positioning seat to pressurize the battery cell module located at the cable tie station.

Images