An efficient bag-making machine

Abstract

The present invention discloses a high-efficiency lithium battery electrode bag making machine, comprising a processing area, a fixed base, two supporting and traction mechanisms, a heat-sealing mechanism, a cutting mechanism, a detection platform, a first conveying mechanism, a defective product recovery mechanism, a material storage box, and a second conveying mechanism. The processing area is provided with a heat-sealing station and a cutting station. The supporting and traction mechanism comprises a base mounted on the fixed base, a base drive structure, an operating platform, a first pressing plate, and a second pressing plate. The operating platform extends into the processing area, and a lifting and lowering drive structure is mounted on the base and is used to drive the operating platform to rise and fall. The base drive structure is used to drive the base to move in conjunction with the operating platform. The first pressing plate is located directly above the operating platform. The pressing plate lifting and lowering drive structure is mounted on the base and is used to drive the first pressing plate to move. A bidirectional drive structure is mounted on the base and is used to drive the first pressing plate to move in the Y and Z directions. The present invention can improve production efficiency and cutting accuracy.

Description

Technical Field

[0001] The present invention relates to a bag making machine, in particular to a high-efficiency integrated bag making machine for lithium battery pole pieces. Background Art

[0002] At present, in order to protect the lithium battery pole pieces, the lithium battery pole pieces are often placed on the lower diaphragm, and the upper diaphragm is used to cover the lithium battery pole pieces, so that the upper diaphragm and the lower diaphragm cooperate to wrap the lithium battery pole pieces except for the pole ears. After the upper diaphragm and the lower diaphragm are operated accordingly, a pole piece bag is formed, and then the concentricity, appearance quality, etc. of the pole piece bag wrapped with the lithium battery pole pieces are tested, and the qualified and unqualified pole piece bags wrapped with the lithium battery pole pieces need to be classified and stored according to the test results. However, the existing bag making machine can only perform heat sealing or cutting at a time, and after the subsequent quality inspection of the pole piece bag, the same robot is used to classify and transfer the defective and qualified pole piece bags, which affects efficiency; at the same time, the existing traction mechanism is used to pull one side of the upper diaphragm and the lower diaphragm, so as to move the part wrapped with the lithium battery from the heat sealing position to the cutting position. At this time, the part of the upper diaphragm and the lower diaphragm wrapped with the lithium battery is easily stretched and deformed during the pulling process, affecting the cutting accuracy. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a high-efficiency bag-making machine, which can improve production efficiency and cutting accuracy.

[0004] The purpose of the present invention is achieved by adopting the following technical solutions:

[0005] A high-efficiency bag-making machine, comprising

[0006] Two installation areas; the two installation areas are sequentially spaced apart along the Z direction;

[0007] Processing area; the processing area is arranged between the two installation areas and is provided with heat sealing stations and cutting stations arranged in sequence along the X direction;

[0008] Fixed seat;

[0009] Two supporting and traction mechanisms; the two supporting and traction mechanisms are respectively arranged in the two installation areas; the supporting and traction mechanism includes a base, a base driving structure, an operating platform, a platform lifting and driving structure, a first pressure plate, a pressure plate lifting and driving structure, a second pressure plate and a first bidirectional driving structure; the operating platform extends into the processing area and is used to support the upper diaphragm, the lithium battery and the lower diaphragm; the operating platform is installed on the base through the platform lifting and driving structure; the platform lifting and driving structure is used to drive the operating platform to move along the Y direction; the base is installed on the fixed seat; the base driving structure is used to drive the base to move along the X direction, so as to link the operating platform to move between the heat sealing station and the cutting station; the first The pressing plate and the second pressing plate are arranged in sequence along the X direction and can be used to press the upper diaphragm and the lower diaphragm onto the operating platform; the first pressing plate is installed on the base through the pressing plate lifting drive structure, and one side of the first pressing plate extends into the processing area and is located directly above the operating platform; the pressing plate lifting drive structure is used to drive the first pressing plate to move along the Y direction; the second pressing plate is installed on the base through a first bidirectional driving structure; the first bidirectional driving structure is used to drive the second pressing plate to move along the Y direction; the first bidirectional driving structure is also used to drive the second pressing plate to move along the Z direction, so that the second pressing plate extends out of the installation area and faces the operating platform or retracts the second pressing plate into the corresponding installation area;

[0010] A lithium battery pole piece wrapping device; the lithium battery pole piece wrapping device is used to wrap the lithium battery pole piece except its pole ear on the operating platform with an upper diaphragm and a lower diaphragm;

[0011] Heat sealing mechanism; the heat sealing mechanism is used to heat seal and bond the upper diaphragm and the lower diaphragm along the edge of the lithium battery electrode on the operating platform; the bonding portion between the upper diaphragm and the lower diaphragm forms a bonding portion;

[0012] A cutting mechanism; the cutting mechanism is used to cut the upper diaphragm and the lower diaphragm along the edge of the bonding portion to form a pole piece bag wrapped with a lithium battery pole piece;

[0013] Testing platform;

[0014] A first conveying mechanism; the first conveying mechanism is used to transfer the electrode bag to the testing platform;

[0015] Defective product recycling mechanism; the defective product recycling mechanism is used to recycle the defective electrode bags on the detection platform;

[0016] Storage box;

[0017] The second conveying mechanism is used to transfer the qualified electrode bags on the testing platform to the storage box.

[0018] Furthermore, the defective product recycling mechanism includes a blowing structure and a recycling box; the recycling box is located on one side of the detection platform and has a side opening facing the detection platform; the blowing structure is used to blow the electrode bag located on the detection platform toward the direction of the side opening.

[0019] Furthermore, the second conveying mechanism includes a vacuum suction cup and a power structure, the vacuum suction cup is used to be connected to an external air pump; and the power structure is used to drive the vacuum suction cup to move.

[0020] Furthermore, a discharge port is provided at the top end of the material storage box, and an avoidance port is provided at the bottom end of the material storage box; a corresponding supporting assembly is provided for the material storage box; the supporting assembly includes a supporting member and a supporting member lifting and driving structure; the supporting member is used to support the electrode bag; the supporting member lifting and driving structure is used to drive the supporting member to enter the material storage box through the avoidance port, and drive the supporting member to move in a direction close to or away from the discharge port.

[0021] Furthermore, the base is mounted on the fixed seat through a guide structure; the guide structure includes a guide rail extending along the X direction and a guide groove movably inserted into the guide rail; the base drive structure includes a rotating motor, a screw and a screw nut; the body of the rotating motor is mounted on the fixed seat; the screw is transmission-connected to the output shaft of the rotating motor; the screw nut is matched and sleeved outside the screw and fixedly connected to the base.

[0022] Furthermore, the first bidirectional drive structure includes a lifting cylinder and a telescopic cylinder; the cylinder body of the telescopic cylinder is installed on the base, the telescopic rod of the telescopic cylinder is parallel to the Z direction and is fixedly connected to the cylinder body of the lifting cylinder; the telescopic rod of the lifting cylinder is parallel to the Y direction and is transmission-connected to the second pressure plate.

[0023] Furthermore, the lithium battery pole piece wrapping device includes a frame, a lower diaphragm winding mechanism and an upper diaphragm covering mechanism; the lower diaphragm winding mechanism is used to wind the lower diaphragm and guide the lower diaphragm to pass through the heat sealing station and the cutting station in a horizontal state along the X direction; the upper diaphragm covering mechanism includes a winding roller, a mounting plate installed on the frame, a mounting plate driving structure, and a traction roller assembly and a pressing assembly both installed on the mounting plate; the winding roller is installed on the frame and is used for winding the upper diaphragm; the traction roller assembly is used to receive the upper diaphragm drawn from the winding roller diaphragm and for winding the upper diaphragm; the mounting plate driving mechanism is used to drive the mounting plate to move along the X direction, so as to link the traction roller assembly to pull the upper diaphragm to the top of the operating platform or away from the operating platform; the pressing assembly is used to push the upper diaphragm located on the operating platform toward the operating platform; the heat sealing mechanism and the cutting mechanism are both mounted on the mounting plate, and the traction roller assembly, the pressing assembly, the heat sealing mechanism and the cutting mechanism are arranged in sequence along the arrangement direction of the heat sealing station and the cutting station.

[0024] Furthermore, the high-efficiency bag-making machine also includes a feed box, a third conveying mechanism and a correcting mechanism; the feed box, the correcting mechanism and the operating platform are arranged in sequence along the X direction; the correcting mechanism includes a correcting platform, a rotary drive structure, a mounting member and a second bidirectional drive structure; the correcting platform is installed on the rotary drive structure and is driven by the rotary drive structure to rotate horizontally; the rotary drive structure is installed on the mounting member; the second bidirectional drive structure is used to drive the mounting member to move along the X and Y directions respectively; the third conveying mechanism is used to convey the lithium battery electrodes in the feed box to the correcting platform, and is also used to translate the lithium battery electrodes on the correcting platform along the X direction to the lower diaphragm on the lower operating platform.

[0025] Furthermore, the heat sealing mechanism includes a heat sealing member, a first heating component and a heat sealing member driving structure; the first heating component is used to heat the heat sealing member; the heat sealing member has a downwardly protruding heat pressing flange, and the trajectory shape of the heat pressing flange is the same as the edge shape of the lithium battery electrode except for its electrode ear; the heat sealing member driving structure is used to drive the heat sealing member to move along the Y direction.

[0026] Furthermore, the cutting mechanism includes a cutter, a cutter drive structure and a second heating component; the second heating component is used to heat the cutter; the blade of the cutter faces downward; the trajectory shape of the blade of the cutter is the same as the edge shape of the adhesive portion; the cutter drive structure is used to drive the cutter to move along the Y direction.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention is provided with a heat sealing mechanism, a cutting mechanism, and two supporting and traction mechanisms which are respectively placed in two installation areas; each supporting and traction mechanism includes a base, a base driving structure, an operating platform, a platform lifting and driving structure, a first pressure plate, a pressure plate lifting and driving structure, a second pressure plate and a bidirectional driving structure; in this way, the two operating platforms can be separately placed on the heat sealing station and the cutting station, so that the heat sealing mechanism and the cutting mechanism can be used to perform heat sealing and cutting operations simultaneously. After the heat sealing is completed, for the supporting and traction mechanism where the operating platform is located at the heat sealing station: the corresponding pressure plate lifting and driving structure and the bidirectional driving structure are used to respectively drive the first pressure plate and the second pressure plate to press the upper and lower diaphragms on both sides of the lithium battery electrode sheet onto the operating platform; for the supporting and traction mechanism where the operating platform is located at the cutting station: the bidirectional driving structure is used to retract the second pressure plate, and the platform lifting and driving structure is used to drive The movable operating platform descends and the pressure plate lifting drive structure is used to drive the first pressure plate to rise, thereby forming a space to avoid the first pressure plate, the operating platform and the second pressure plate of the heat sealing station; after that, the two base driving structures are used to drive the two bases to move in opposite directions respectively, so that the two operating platforms of the heat sealing station and the cutting station can be smoothly interchanged. In this way, the heat sealing mechanism and the cutting mechanism can cyclically perform synchronous heat sealing and cutting to improve efficiency; at the same time, during the transfer of the operating platform on the heat sealing station, the first pressure plate and the second pressure plate move synchronously with the operating platform under the linkage of the base to transfer the lithium battery electrode to the cutting station. At this time, the first pressure plate and the second pressure plate are respectively pressed on the opposite sides of the lithium battery electrode, which can avoid the parts of the upper diaphragm and the lower diaphragm wrapping the lithium battery electrode from being stretched, and avoid the lithium battery electrode from being offset relative to the upper diaphragm and the lower diaphragm, thereby ensuring the cutting accuracy.

[0029] Furthermore, after the electrode bags on the inspection platform are inspected, a defective product recovery mechanism and a second conveying mechanism are used to transfer defective and qualified electrode bags respectively, which can further improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front view of the high-efficiency bag-making machine of the present invention;

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure of the high-efficiency bag-making machine of the present invention;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure of the supporting and traction mechanism of the present invention;

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the lithium battery pole piece wrapping device, heat sealing mechanism and cutting structure of the present invention;

[0034] Figure 5 Schematic diagram of the three-dimensional structure of the correction mechanism of the present invention;

[0035] Figure 6Schematic diagram of the three-dimensional structure of the defective product recovery mechanism of the present invention;

[0036] Figure 7 This is one of the structural diagrams of the supporting assembly and the storage box of the present invention;

[0037] Figure 8 This is the second structural diagram of the supporting assembly and the storage box of the present invention.

[0038] In the figure: 10, fixed seat; 20, supporting and traction mechanism; 21, base; 22, base drive structure; 23, operating platform; 24, platform lifting drive structure; 25, first pressing plate; 26, pressing plate lifting drive structure; 27, second pressing plate; 28, first bidirectional drive structure; 281, lifting cylinder; 282, telescopic cylinder; 30, heat sealing mechanism; 31, heat sealing element; 32, first heating assembly; 33, heat sealing element drive structure; 40, cutting mechanism; 41, cutter; 42, cutter drive structure; 50, guide rail; 60, lithium battery electrode wrapping device; 61, frame; 62, lower diaphragm winding mechanism; 621, unwinding roller; 622, guide roller; 623, take-up roller; 63, upper diaphragm covering mechanism; 631, winding roller; 632, mounting plate; 633, Mounting plate drive structure; 634, traction roller assembly; 635, pressing assembly; 6351, pressure roller; 6352, bracket; 6353, pressure roller drive structure; 70, first conveying mechanism; 80, defective product recovery mechanism; 81, blowing structure; 82, recovery box; 821, side opening; 90, storage box; 91, discharge port; 92, avoidance port; 100, second conveying mechanism; 110, detection platform; 111, adsorption port; 120, supporting assembly; 121, supporting member; 122, supporting member lifting drive structure; 130, feeding box; 140, third conveying mechanism; 150, deviation correction mechanism; 151, deviation correction platform; 152, rotation drive structure; 153, mounting member; 154, second bidirectional drive structure; 160, upper diaphragm; 170, lower diaphragm. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0040] like Figure 1-3 The high-efficiency bag-making machine shown includes a processing area, a fixing seat 10, a lithium battery electrode wrapping device 60, a heat sealing mechanism 30, a cutting mechanism 40, a detection platform 110, a first conveying mechanism 70, a defective product recovery mechanism 80, a material storage box 90, a second conveying mechanism 100, two installation areas and two supporting and traction mechanisms 20; wherein,

[0041] The two installation areas and the processing area are arranged alternately in sequence along the Z direction, that is, they are arranged along the Z direction in the arrangement of the installation area, the processing area, and the installation area;

[0042] The two supporting and traction mechanisms 20 are respectively arranged in two installation areas; wherein, the two supporting and traction mechanisms 20 adopt the same structure, and here, only the detailed structure of one of the traction supporting and traction mechanisms 20 is explained; specifically, the supporting and traction mechanism 20 includes a base 21, a base driving structure 22, an operating platform 23, a platform lifting and driving structure 24, a first pressure plate 25, a pressure plate lifting and driving structure 26, a second pressure plate 27 and a first bidirectional driving structure 28; specifically, the operating platform 23 is installed on the base 21 through the platform lifting and driving structure 24; the platform lifting and driving structure 24 is used to drive the operating platform 23 to move along the Y direction, that is, to drive the operating platform 23 to perform lifting and lowering movements; the base 21 is installed on the fixed seat 10. The base driving structure 22 is used to drive the base 21 to move along the X direction, so as to link the operating platform 23 to move between the heat sealing station and the cutting station; the first pressing plate 25 and the second pressing plate 27 are arranged in sequence along the X direction, and both can be used to press the upper diaphragm 160 and the lower diaphragm 170 on the operating platform 23; the first pressing plate 25 is installed on the base 21 through the pressing plate lifting driving structure 26, and one side of the first pressing plate 25 extends into the processing area and is located directly above the operating platform 23; the pressing plate lifting driving structure 26 is used to drive the first pressing plate 25 to move along the Y direction, so that the first pressing plate 25 is close to the operating platform 23 or away from the platform, correspondingly achieving the compression or release of the upper diaphragm 160 and the lower diaphragm 170; the first bidirectional driving structure 28 is used to drive the second pressing plate 27 to move along the Y direction; the first bidirectional driving structure 28 is also used to drive the second pressing plate 27 to move along the Z direction, so that the second pressing plate 27 extends out of the installation area and faces the operating platform 23 or retracts the second pressing plate 27 into the corresponding installation area;

[0043] The lithium battery pole piece wrapping device 60 is used to wrap the lithium battery pole piece except the pole ear on the operating platform 23 with the upper diaphragm 160 and the lower diaphragm 170;

[0044] Heat sealing mechanism 30; the heat sealing mechanism 30 is used to heat seal and bond the upper diaphragm 160 and the lower diaphragm 170 along the edge of the lithium battery electrode on the operating platform 23; the bonding portion between the upper diaphragm 160 and the lower diaphragm 170 is formed as a bonding portion;

[0045] Cutting mechanism 40; the heat sealing mechanism 30 and the cutting mechanism 40 are arranged in sequence along the X direction; the cutting mechanism 40 is used to cut the upper diaphragm 160 and the lower diaphragm 170 along the edge of the bonding portion to form a pole piece bag wrapped with a lithium battery pole piece;

[0046] Detection platform 110;

[0047] The first conveying mechanism 70 is used to transfer the electrode bag to the testing platform 110;

[0048] Defective product recycling mechanism 80; The defective product recycling mechanism 80 is used to recycle defective electrode bags on the testing platform 110;

[0049] Storage box 90;

[0050] The second conveying mechanism 100 is used to transfer the qualified electrode bags on the testing platform 110 to the storage box 90.

[0051] On the basis of the above structure, when using this high-efficiency bag-making machine, the upper diaphragm 160 on the external upper diaphragm 160 roll and the lower diaphragm 170 on the external lower diaphragm 170 roll are pulled out, and the upper diaphragm 160 and the lower diaphragm 170 are passed between the operating platform 23 of the two supporting traction mechanisms 20 and the first pressing plate 25; the two operating platforms 23 are adjusted to be placed on the heat sealing station and the cutting station respectively. At this time, the heat sealing mechanism 30 and the cutting mechanism 40 can be used to perform heat sealing and cutting operations respectively to improve efficiency. The electrode bag wrapped with the lithium battery electrode formed by cutting can be removed by external equipment; when cutting is required after heat sealing is completed, the operating platform 23 is located in the support and traction mechanism 20 of the heat sealing station: the first pressing plate 25 is driven by the pressing plate lifting drive structure 26 to press the upper diaphragm 160 and the lower diaphragm 170 onto the operating platform 23, and the second pressing plate 27 is driven by the first bidirectional driving structure 28 to press the upper diaphragm 160 and the lower diaphragm 170 onto the operating platform 23. At this time, the first pressing plate 25 and the second pressing plate 27 are pressed on both sides of the lithium battery electrode; for the supporting and traction mechanism 20 of the operating platform 23 located in the cutting station: the corresponding platform lifting drive structure 24 is used to drive the operating platform 23 to descend, and the pressing plate lifting drive structure 26 is used to drive the first pressing plate 25 to rise, and the upper diaphragm 160 and the lower diaphragm 170 on the cutting station are pressed. The distance H1 between the operating platform 23 and the first pressing plate 25 in the Y direction is greater than the total height H2 of the operating platform 23 and the first pressing plate 25 on the heat sealing station (or greater than the total height H3 of the operating platform 23 and the second pressing plate 27. It should be noted here that in actual use, if the total height H2 is greater than the total height H3, then the distance H1 is greater than the total height H2, and vice versa). The first bidirectional driving structure 28 is used to retract the second pressing plate 27 to the corresponding installation area, thereby forming a avoidance of the previous supporting traction mechanism 20; then the two base driving structures 22 are used to drive the two bases 21 to move in the opposite directions, which can smoothly move the two operating platforms of the heat sealing station and the cutting station. The working platforms 23 are interchanged, so that the heat sealing mechanism 30 and the cutting mechanism 40 can be cyclically and synchronously used to continue to heat-seal and cut the upper diaphragm 160 and the lower diaphragm 170 on the two operating platforms 23, respectively, to improve efficiency; at the same time, the operating platform 23, the first pressing plate 25 and the second pressing plate 27 located on the heat sealing station are moved to the cutting station together with the base 21. At this time, the first pressing plate 25 and the second pressing plate 27 are respectively pressed on the opposite sides of the lithium battery electrode sheet, which can prevent the upper diaphragm 160 and the lower diaphragm 170 from deforming the portion of the lithium battery electrode sheet wrapped therein, and prevent the lithium battery electrode sheet from shifting relative to the upper diaphragm 160 and the lower diaphragm 170, thereby ensuring the cutting accuracy;At the same time, the first conveyor mechanism 70 can transfer the cut electrode bags to the inspection platform 110. If the electrode bags on the inspection platform 110 are found to be of unqualified quality, the defective product recovery mechanism 80 is used to recover the defective electrode bags on the inspection platform 110. If the electrode bags on the inspection platform 110 are found to be of qualified quality, the second conveyor mechanism 100 is used to transfer the electrode bags to the storage box 90 to complete the classification of the electrode bags. The cooperation between the defective product recovery mechanism 80 and the robot arm can improve efficiency.

[0052] Furthermore, during the entire above process, the two supporting and traction mechanisms 20 are interchanged in position, and there is no need to set up other space to accommodate the supporting and traction mechanisms 20; and the base 21 only needs to move along the X direction, and does not need to move along the Y direction or other directions. There is no need to set up additional space for the two to move, saving space.

[0053] like Figure 6 As shown, further, the defective product recycling mechanism 80 includes a blowing structure 81 and a recycling box 82; the recycling box 82 is located on one side of the detection platform 110 and has a side opening 821 facing the detection platform 110; the blowing structure 81 is used to blow the electrode bag located on the detection platform 110 toward the side opening 821. In this way, when it is known that the quality of the electrode bag on the detection platform 110 is unqualified, the blowing structure 81 is used to blow the electrode bag so that the electrode bag passes through the side opening 821 into the recycling box 82, which is fast and convenient, and there is no need to use an external manipulator to align and grab the electrode bag, which simplifies the recycling operation and further improves efficiency.

[0054] Furthermore, an air cavity can be formed on the detection platform 110, and an adsorption port 111 connected to the air cavity can be opened on the upper surface of the detection platform 110. When working, the air cavity is connected to the external vacuum pump and is in a negative pressure state under the action of the external vacuum pump. Then, the electrode bag can be adsorbed on the upper surface of the detection platform 110 through the adsorption port 111 to facilitate the detection of the electrode bag.

[0055] The blowing structure 81 may include an air blowing head and an air supply machine. The air outlet of the air blowing head faces the side opening 821 , and the air supply machine is used to supply air to the air blowing head.

[0056] Specifically, the second conveying mechanism 100 includes a vacuum suction cup and a power structure. The vacuum suction cup is used to connect to an external vacuum pump; the power structure is used to drive the vacuum suction cup to move; in this way, under the action of the external vacuum pump, the vacuum suction cup is in a negative pressure state, thereby achieving adsorption of the electrode bag, and then driven by the power structure to achieve transfer; the power structure can be a robot arm or a plurality of linear motors, and the plurality of linear motors respectively drive movement in horizontal, transverse, vertical and other directions.

[0057] In order to avoid the battery electrode being damaged due to the battery electrode falling too far when the battery electrode is placed in the storage channel, it is preferred that Figure 7-8 As shown, a discharge port 91 is provided at the top of the storage box 90, and an avoidance port 92 is provided at the bottom of the storage box 90; a supporting assembly 120 is correspondingly provided in the storage box 90; the supporting assembly 120 includes a supporting member 121 and a supporting member lifting drive structure 122; the supporting member 121 is used to support the electrode bag, and the supporting member 121 can be a supporting plate, a supporting block or a supporting seat, etc.; the supporting member lifting drive structure 122 is used to drive the supporting member 121 to enter the storage box 90 through the avoidance port 92, and drive the supporting member 121 to move in a direction close to or away from the discharge port 91. In this way, the supporting member lifting drive structure 122 drives the supporting member 121 to move toward the direction close to the discharge port 91, shortening the distance that the electrode bag moves downward in the unsupported state, and avoiding damage to the electrode bag due to the long descending distance; furthermore, as the number of electrode bags in the storage box 90 increases, the supporting member lifting drive structure 122 can be appropriately used to drive the supporting member 121 electrode bag to move toward the direction away from the discharge port 91, so that the storage box 90 can store the electrode bags as a whole.

[0058] The supporting member lifting drive structure 122 can be an existing linear motor, a cylinder, etc.

[0059] Specifically, the base 21 is mounted on the fixed base 10 via a guide structure; the guide structure includes a guide rail 50 extending along the X direction and a guide groove movably engaged with the guide rail 50 , thereby improving the movement stability of the base 21 .

[0060] More specifically, the base driving structure 22 includes a rotating motor, a screw and a screw nut; the body of the rotating motor is installed on the fixed base 10; the screw is connected to the output shaft of the rotating motor in a transmission manner; the screw nut is matched and sleeved outside the screw and fixedly connected to the base 21; in this way, when the rotating motor is started, the output shaft of the rotating motor drives the screw to rotate, thereby linking the screw nut to drive the base 21 to move. At this time, the accuracy of the movement distance can be further improved through the cooperation of the screw and the screw nut.

[0061] The base driving structure 22 may also be a pneumatic cylinder, a hydraulic cylinder, or the like.

[0062] Furthermore, the first bidirectional drive structure 28 includes a lifting cylinder 281 and a telescopic cylinder 282; the cylinder body of the telescopic cylinder 282 is installed on the base 21, and the telescopic rod of the telescopic cylinder 282 is parallel to the Z direction and fixedly connected to the cylinder body of the lifting cylinder 281; the telescopic rod of the lifting cylinder 281 is parallel to the Y direction and is transmission-connected to the second pressure plate 27; or, the first bidirectional drive structure 28 is implemented by the following structure: the first bidirectional drive structure 28 includes a lifting cylinder 281 and a telescopic cylinder 282; the cylinder body of the lifting cylinder 281 is installed on the base 21, and the telescopic rod of the lifting cylinder 281 is parallel to the Y direction and is transmission-connected to the cylinder body of the telescopic cylinder 282; the telescopic rod of the telescopic cylinder 282 is parallel to the Z direction and is transmission-connected to the second pressure plate 27.

[0063] Specifically, the lithium battery pole piece wrapping device 60 includes a frame 61, a lower diaphragm winding mechanism 62 and an upper diaphragm covering mechanism 63; the lower diaphragm winding mechanism 62 is used to wind the lower diaphragm 170 and guide the lower diaphragm 170 to pass through the heat sealing station and the cutting station in a horizontal state along the X direction; the upper diaphragm covering mechanism 63 includes a roller 631, a mounting plate 632 mounted on the frame 61, a mounting plate driving structure 633, and a traction roller assembly 634 and a pressing assembly 635 both mounted on the mounting plate 632; the roller 631 is mounted on the frame 61 and is used for winding the upper diaphragm 160; the traction roller assembly 634 is used to receive the upper diaphragm 160 from the winding roller. The upper diaphragm 160 is drawn out by the roller 631 and is wound around the upper diaphragm 160; the driving mechanism of the mounting plate 632 is used to drive the mounting plate 632 to move along the X direction, so as to link the traction roller assembly 634 to pull the upper diaphragm 160 to the top of the operating platform 23 or away from the operating platform 23; the pressing assembly 635 is used to push the upper diaphragm 160 located on the operating platform 23 toward the direction of the operating platform 23; the heat sealing mechanism 30 and the cutting mechanism 40 are both installed on the mounting plate 632, and the traction roller assembly 634, the pressing assembly 635 and the heat sealing mechanism 30 and the cutting mechanism 40 are arranged in sequence along the arrangement direction of the heat sealing station and the cutting station.

[0064] On the basis of the above structure, the operating platform 23 moves to the bottom of the lower diaphragm 170, passes the upper diaphragm 160 through the traction roller assembly 634 and then passes it between the operating platform 23 and the first pressing plate 25, and uses the first pressing plate 25 to press it tightly on the operating platform 23. When it is necessary to place the lithium battery electrode on the lower diaphragm 170 on the operating platform, the mounting plate driving structure 633 drives the mounting plate 632 to move as shown in the figure. Figure 1 The movement is in the direction indicated by the middle arrow A1. At this time, the traction roller pulls the upper diaphragm 160 away from the operating platform 23, that is, the upper diaphragm 160 is away from the lower diaphragm 170. After the lithium battery electrode is placed, the mounting plate driving structure 633 drives the mounting plate 632 to move as shown in FIG. Figure 1The upper diaphragm 160 moves in the direction indicated by the middle arrow A2, and the traction roller assembly 634 pulls the upper diaphragm 160 to the top of the operating platform 23, and then the pressing assembly 635 presses the upper diaphragm 160 downward to achieve the fitting of the upper diaphragm 160 and the lower diaphragm 170; then heat sealing and cutting operations can be performed; in this way, the first pressing plate 25 and the pressing assembly 635 cooperate to press the two sides of the upper diaphragm 160 onto the lower diaphragm 170 respectively. The setting of the first pressing plate 25 can eliminate the need for setting up another component to press one side of the upper diaphragm 160, thereby simplifying the structure.

[0065] like Figure 4 As shown, specifically, the pressing assembly 635 includes a pressure roller 6351, a bracket 6352 and a pressure roller driving structure 6353; the pressure roller 6351 is pivotally connected to the bracket 6352; the pressure roller driving structure 6353 is used to drive the bracket 6352 to move along the Y direction, and the pivoting of the pressure roller 6351 can reduce the friction on the upper diaphragm 160.

[0066] The above-mentioned lower diaphragm winding mechanism 62 includes a discharge roller 621, at least two guide rollers 622 and a receiving roller 623, all of which are installed on the frame 61 and arranged in sequence along the X direction; at least two guide rollers 622 are placed on opposite sides of the processing area and are mirror-imaged with respect to the Y direction; the lower diaphragm 170 is wound on the discharge roller 621, and the part pulled out from the discharge roller 621 is wound on the two guide rollers 622 and the receiving roller 623 in sequence; the lower diaphragm winding mechanism 62 can also be provided with a motor to drive the receiving roller 623 to rotate.

[0067] like Figure 1-2 and Figure 5 As shown, further, the high-efficiency bag-making machine also includes a feed box 130, a third conveying mechanism 140 and a correcting mechanism 150; the feed box 130, the correcting mechanism 150 and the operating platform 23 are arranged in sequence along the X direction; the correcting mechanism 150 includes a correcting platform 151, a rotating drive structure 152, a mounting member 153 and a second bidirectional drive structure 154; the correcting platform 151 is installed on the rotating drive structure 152, and is driven by the rotating drive structure 152 to rotate horizontally; the rotating drive structure 152 is installed on the mounting member 153; the second bidirectional drive structure 154 is used to drive the mounting member 153 to move along the X direction and the Y direction respectively; the third conveying mechanism 140 is used to convey the lithium battery electrodes in the feed box 130 to the correcting platform 151, and is also used to translate the lithium battery electrodes on the correcting platform 151 along the X direction to the lower diaphragm 170 on the lower operating platform 23.

[0068] On the basis of the above structure, when in use, according to actual conditions, the rotary drive structure 152 and the second bidirectional drive structure 154 are selectively used to drive the correction platform 151 to rotate horizontally, move along the X direction, and move along the Y direction, thereby realizing the adjustment of the position of the lithium battery electrode, and when the third conveying mechanism 140 drives the lithium battery electrode to move horizontally along the X direction to the lower diaphragm 170, the electrode ear of the lithium battery electrode can extend out of the lower diaphragm 170.

[0069] The third conveying mechanism 140 may include two suction cup conveying structures, each of which includes a suction cup and a power assembly, and the power assembly may be a robot.

[0070] like Figure 4 As shown, specifically, the heat sealing mechanism 30 includes a heat sealing member 31, a first heating component 32 and a heat sealing member driving structure 33; the first heating component 32 is used to heat the heat sealing member 31, and the heat sealing member 31 can be a heat sealing seat, a heat sealing shell, etc.; the heat sealing member 31 has a downwardly protruding heat pressing flange, the trajectory shape of the heat pressing flange is the same as the edge shape of the lithium battery pole piece except for its pole ear, and the shape and size of the heat pressing flange are larger than the size of the pole piece edge shape, so that the heat pressing flange matching cover is arranged outside the lithium battery pole piece; the heat sealing member driving structure 33 is used to drive the heat sealing member 31 along the Y direction Movement; when in use, the hot pressing flange is facing any operating platform 23 and is located above the operating platform 23; the first heating component 32 heats the heat sealing part 31, so the hot pressing flange is heated and heated, and the heat sealing part driving structure 33 drives the heat sealing part 31 to move downward along the Y direction, and then the hot pressing flange is fitted with the upper diaphragm 160, and under the action of the heat sealing part driving structure 33, the lower diaphragm 170 is continued to be squeezed downward. At this time, under the hot melting of the hot pressing flange, the upper diaphragm 160 and the lower diaphragm 170 are bonded along the edge of the lithium battery electrode at one time, saving bonding time.

[0071] Furthermore, the cutting mechanism 40 includes a cutter 41, a cutter drive structure 42, and a second heating assembly. The second heating assembly is used to heat the cutter 41. The blade of the cutter 41 faces downward. During use, the blade of the cutter 41 is directed toward the operating platform 23. The trajectory of the blade of the cutter 41 is the same as the edge shape of the adhesive portion, and the size of the trajectory of the blade of the cutter 41 is greater than or equal to the size of the edge shape of the adhesive portion. The cutter drive structure 42 is used to drive the cutter 41 to move in the Y direction. During use, the second heating assembly heats the cutter 41, and the cutter drive structure 42 drives the cutter 41 toward the operating platform 23. After the blade of the cutter 41 contacts the upper diaphragm 160, it continues to move downward. At this time, the heat from the blade of the cutter 41 cuts the upper diaphragm 160 and the lower diaphragm 170 simultaneously along the edge of the adhesive portion.

[0072] The first heating component 32 and the second heating component can both adopt existing heating wires, heating tubes, etc.

[0073] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A high-efficiency bag-making machine, characterized by: include Two installation areas; the two installation areas are sequentially spaced apart along the Z direction; Processing area; the processing area is arranged between the two installation areas and is provided with heat sealing stations and cutting stations arranged in sequence along the X direction; Fixed seat; Two supporting and traction mechanisms; the two supporting and traction mechanisms are respectively arranged in the two installation areas; the supporting and traction mechanism includes a base, a base driving structure, an operating platform, a platform lifting and driving structure, a first pressure plate, a pressure plate lifting and driving structure, a second pressure plate and a first bidirectional driving structure; the operating platform extends into the processing area and is used to support the upper diaphragm, the lithium battery and the lower diaphragm; the operating platform is installed on the base through the platform lifting and driving structure; the platform lifting and driving structure is used to drive the operating platform to move along the Y direction; the base is installed on the fixed seat; the base driving structure is used to drive the base to move along the X direction, so as to link the operating platform to move between the heat sealing station and the cutting station; the first pressure plate and the second pressure plate are arranged in sequence along the X direction, and can both be used to move the upper diaphragm and the lower diaphragm is pressed tightly on the operating platform; the first pressing plate is installed on the base through the pressing plate lifting drive structure, and one side of the first pressing plate extends into the processing area and is located directly above the operating platform; the pressing plate lifting drive structure is used to drive the first pressing plate to move along the Y direction; the second pressing plate is installed on the base through the first bidirectional driving structure; the first bidirectional driving structure is used to drive the second pressing plate to move along the Y direction; the first bidirectional driving structure is also used to drive the second pressing plate to move along the Z direction, so that the second pressing plate extends out of the installation area and faces the operating platform or retracts the second pressing plate into the corresponding installation area; a lithium battery pole piece wrapping device; the lithium battery pole piece wrapping device is used to wrap the lithium battery pole piece except its pole ear with the upper diaphragm and the lower diaphragm on the operating platform; Heat sealing mechanism; The heat sealing mechanism is used to heat-seal and bond the upper diaphragm and the lower diaphragm along the edge of the lithium battery electrode on the operating platform; the portion where the upper diaphragm and the lower diaphragm are bonded forms a bonding portion; Cutting mechanism; The cutting mechanism is used to cut the upper diaphragm and the lower diaphragm along the edge of the bonding portion to form a pole piece bag wrapped with a lithium battery pole piece; Testing platform; A first conveying mechanism; the first conveying mechanism is used to transfer the electrode bag to the testing platform; Defective product recovery mechanism; the defective product recovery mechanism is used to recover defective electrode bags on the testing platform; the defective product recovery mechanism includes a blowing structure and a recovery box; the recovery box is located on one side of the testing platform and has a side opening facing the testing platform; the blowing structure is used to blow the electrode bags located on the testing platform toward the side opening; Storage box; The second conveying mechanism; the second conveying mechanism is used to transfer the qualified electrode bags on the testing platform to the storage box; the second conveying mechanism includes a vacuum suction cup and a power structure, the vacuum suction cup is used to be connected to an external vacuum pump; the power structure is used to drive the vacuum suction cup to move.

2. The high-efficiency bag-making machine according to claim 1, characterized in that: A discharge port is provided at the top end of the material storage box, and an avoidance port is provided at the bottom end of the material storage box; a supporting assembly is correspondingly provided to the material storage box; the supporting assembly includes a supporting member and a supporting member lifting and driving structure; the supporting member is used to support the electrode bag; the supporting member lifting and driving structure is used to drive the supporting member to enter the material storage box through the avoidance port, and drive the supporting member to move in a direction close to or away from the discharge port.

3. The high-efficiency bag-making machine according to claim 1, characterized in that: The base is mounted on the fixed seat through a guide structure; the guide structure includes a guide rail extending along the X direction and a guide groove movably inserted into the guide rail; the base drive structure includes a rotating motor, a screw and a screw nut; the body of the rotating motor is mounted on the fixed seat; the screw is transmission-connected to the output shaft of the rotating motor; the screw nut is matched and sleeved outside the screw and fixedly connected to the base.

4. The high-efficiency bag-making machine according to claim 1, characterized in that: The first bidirectional driving structure includes a lifting cylinder and a telescopic cylinder; the cylinder body of the telescopic cylinder is installed on the base, the telescopic rod of the telescopic cylinder is parallel to the Z direction and fixedly connected to the cylinder body of the lifting cylinder; the telescopic rod of the lifting cylinder is parallel to the Y direction and is transmission-connected to the second pressure plate.

5. The high-efficiency bag-making machine according to claim 1, characterized in that: The lithium battery pole piece wrapping device includes a frame, a lower diaphragm winding mechanism and an upper diaphragm covering mechanism; the lower diaphragm winding mechanism is used to wind the lower diaphragm and guide the lower diaphragm to pass through the heat sealing station and the cutting station in a horizontal state along the X direction; the upper diaphragm covering mechanism includes a winding roller, a mounting plate installed on the frame, a mounting plate driving structure, and a traction roller assembly and a pressing assembly both installed on the mounting plate; the winding roller is installed on the frame and is used for winding the upper diaphragm; the traction roller assembly is used to receive the upper diaphragm drawn from the winding roller and for winding the upper diaphragm; the mounting plate driving mechanism is used to drive the mounting plate to move along the X direction, so as to link the traction roller assembly to pull the upper diaphragm to the top of the operating platform or away from the operating platform; the pressing assembly is used to push the upper diaphragm located on the operating platform toward the operating platform; the heat sealing mechanism and the cutting mechanism are both mounted on the mounting plate, and the traction roller assembly, the pressing assembly, the heat sealing mechanism and the cutting mechanism are arranged in sequence along the arrangement direction of the heat sealing station and the cutting station.

6. The high-efficiency bag-making machine according to claim 5, characterized in that: The high-efficiency bag-making machine also includes a feed box, a third conveying mechanism and a correcting mechanism; the feed box, the correcting mechanism and the operating platform are arranged in sequence along the X direction; the correcting mechanism includes a correcting platform, a rotary drive structure, a mounting member and a second bidirectional drive structure; the correcting platform is installed on the rotary drive structure and is driven by the rotary drive structure to rotate horizontally; the rotary drive structure is installed on the mounting member; the second bidirectional drive structure is used to drive the mounting member to move along the X and Y directions respectively; the third conveying mechanism is used to convey the lithium battery electrodes in the feed box to the correcting platform, and is also used to translate the lithium battery electrodes on the correcting platform along the X direction to the lower diaphragm on the lower operating platform.

7. The high-efficiency bag-making machine according to claim 1, characterized in that: The heat sealing mechanism includes a heat sealing member, a first heating component and a heat sealing member driving structure; the first heating component is used to heat the heat sealing member; the heat sealing member has a downwardly protruding heat pressing flange, and the trajectory shape of the heat pressing flange is the same as the edge shape of the lithium battery electrode except for its electrode ear; the heat sealing member driving structure is used to drive the heat sealing member to move along the Y direction.

8. The high-efficiency bag-making machine according to claim 1, characterized in that: The cutting mechanism includes a cutter, a cutter driving structure and a second heating component; the second heating component is used to heat the cutter; The blade of the cutter faces downward; the trajectory shape of the blade of the cutter is the same as the edge shape of the bonding portion; and the cutter driving structure is used to drive the cutter to move along the Y direction.

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