Efficient pole piece lamination mechanism

Abstract

The utility model provides an efficient pole piece lamination mechanism, which comprises a mounting platform, a Y-axis driving assembly, a movable bottom plate, a lamination platform and a diaphragm conveying assembly, the Y-axis driving assembly is fixed above the mounting platform, the movable bottom plate is fixed at the power output end of the Y-axis driving assembly, the lamination platform is fixed above the movable bottom plate, and the diaphragm conveying assembly is fixed above the lamination platform. The diaphragm conveying assembly is erected in the middle of the upper portion of the Y-axis driving assembly, the first mounting base is fixed to the upper portion of the movable bottom plate, the first lifting driving assembly is fixed to the first mounting base, and the lamination carrying table is fixed to the power output end of the first lifting driving assembly. The film pressing assembly comprises a second mounting base, a first X-axis sliding table, an X-axis air cylinder, a first movable vertical frame, a first Z-axis air cylinder and a metal pressing plate. The pole piece laminating machine has the advantages that the laminating platform deck can be driven to move back and forth, two sets of pole piece feeding stations can be correspondingly arranged on the front side and the rear side, the two sets of pole piece feeding stations conduct feeding alternately, and therefore the laminating efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium battery lamination equipment, in particular to a kind of efficient pole piece lamination mechanism. BACKGROUND

[0002] Winding and lamination are the most core link of lithium battery middle section battery assembly process, and are two different battery manufacturing processes.Winding is the production process that the pole piece, diaphragm and termination adhesive tape after striping are wound into pole core with matching size.Lamination is the production process that pole piece and diaphragm are alternately stacked together, and finally complete multilayer lamination pole core.For Z-shaped lamination lithium battery, diaphragm is in continuous Z shape, and pole piece is placed between two diaphragms.

[0003] And on the traditional lamination equipment, lamination platform is fixedly arranged, the mechanism conveying diaphragm repeatedly lays diaphragm on lamination platform, and when diaphragm is about to be laid reversely, gripper is used to place pole piece on diaphragm, however, the laying speed of diaphragm is fast, and the efficiency of gripper for taking pole piece from previous process cannot keep up with, so as to affect overall lamination efficiency, in view of this, it is necessary to manufacture a kind of efficient pole piece lamination mechanism to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of efficient pole piece lamination mechanism to solve the problems mentioned in background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of efficient pole piece lamination mechanism, including installation platform, Y-axis drive component, movable bottom plate, lamination platform and diaphragm conveying component, Y-axis drive component is fixed above installation platform, movable bottom plate is fixed at the power output end of Y-axis drive component, lamination platform is fixed above movable bottom plate, diaphragm conveying component is erected in the upper middle part of Y-axis drive component;

[0007] The laminated platform comprises a first mounting base, a first lifting driving assembly, a laminated carrier and a film pressing assembly, the first mounting base is fixed above a movable base plate, the first lifting driving assembly is fixed on the first mounting base, the laminated carrier is fixed on a power output end of the first lifting driving assembly, the film pressing assembly comprises a second mounting base, a first X-axis sliding table, an X-axis cylinder, a first movable stand, a first Z-axis cylinder and a metal pressing plate, the second mounting base is fixed on the movable base plate, the first X-axis sliding table and the X-axis cylinder are fixed on the second mounting base, the first movable stand is fixed on a power output end of the X-axis cylinder and is slidably connected with the first X-axis sliding table, the first Z-axis cylinder is fixed on the first movable stand, the metal pressing plate is fixed on a power output end of the first Z-axis cylinder and is above edges of the laminated carrier, the first X-axis sliding table, the X-axis cylinder, the first movable stand, the first Z-axis cylinder and the metal pressing plate are each provided with a group on the front and back sides of the second mounting base, the two groups of metal pressing plates correspond to the front and back sides of the laminated carrier respectively, and the film pressing assembly is provided with two groups and corresponds to the left and right sides of the laminated carrier respectively.

[0008] Further description of the utility model: the laminated platform further comprises a deviation rectifying assembly, the deviation rectifying assembly comprises a deviation rectifying motor, a second X-axis sliding table and a deviation rectifying carrier, the deviation rectifying motor and the second X-axis sliding table are fixed on the first mounting base, the deviation rectifying carrier is fixed on a power output end of the deviation rectifying motor and is slidably connected with the second X-axis sliding table, an upper end surface of the deviation rectifying carrier is flush with an upper end surface of the laminated carrier, rear sides of the deviation rectifying carrier and front sides of the laminated carrier are each provided with suction air holes, and the suction air holes are connected with a suction equipment.

[0009] Further description of the utility model: the diaphragm conveying assembly is provided with a discharging roller assembly above the Y-axis driving assembly, the discharging roller assembly comprises a roller mounting frame, discharging rollers and guide rods, the discharging rollers are rotatably installed on the roller mounting frame, two groups of the discharging rollers are provided side by side in front and back, and the guide rods are fixed on the roller mounting frame and correspond to the lower rear sides of the discharging rollers.

[0010] Further description of the utility model: further comprising a diaphragm cutting assembly, the diaphragm cutting assembly comprises a third mounting base, a second lifting driving assembly, a second movable stand, a second Z-axis cylinder, a third movable stand and a cutting metal wire, the third mounting base is fixed above a mounting platform, the second lifting driving assembly is fixed on the third mounting base, the second movable stand is fixed on a power output end of the second lifting driving assembly, the second Z-axis cylinder is fixed on the second movable stand, the third movable stand is fixed on a power output end of the second Z-axis cylinder, the cutting metal wire is arranged along the X-axis direction and both ends of the cutting metal wire are fixed on lower ends of the third movable stand, the cutting metal wire corresponds to the rear sides of the guide rods, and the cutting metal wire is connected with a heating equipment.

[0011] Further description of the utility model: the rear side of the lamination carrier is equipped with a material taking avoidance groove, the material taking avoidance groove is opened at the rear end, and the material taking avoidance groove is provided with two groups and corresponds to the left and right sides of the lamination carrier.

[0012] The utility model discloses the beneficial effects of: Y axis drive assembly drives lamination platform reciprocating operation, diaphragm is discharged from diaphragm conveying assembly, and the end of diaphragm is laid on lamination carrier and is pressed tightly by four groups of metal pressing plate, when lamination carrier runs to the front side of Y axis drive assembly, the first Z axle cylinder of rear side drives metal pressing plate to lift and is driven to the outside under the X axle cylinder, then, the pole piece feeding station of front side places a pole piece on diaphragm, then the metal pressing plate of rear side resets to the inside and presses tightly pole piece downward, lamination carrier runs to the rear side of Y axis drive assembly, during the movement of lamination carrier to the rear, diaphragm is automatically folded forward under the pulling of lamination carrier and covers a layer of diaphragm on pole piece, then the first Z axle cylinder of front side drives metal pressing plate to lift and is driven to the outside under the X axle cylinder, then, the pole piece feeding station of rear side places a pole piece on diaphragm, then the metal pressing plate of front side resets to the inside and presses tightly pole piece downward, lamination carrier runs to the front side of Y axis drive assembly, so repeatedly operating makes diaphragm Z type laying on lamination carrier and places pole piece between diaphragm, along with the gradually increasing of lamination thickness, the first lifting drive assembly drives lamination carrier to gradually descend to adapt to the feeding position of pole piece feeding station.The advantage of the design is that: can drive lamination carrier to reciprocate, makes pole piece feeding station can be correspondingly provided with two groups on the left and right sides, and two pole piece feeding stations alternate feeding, thereby improving the efficiency of lamination. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the overall structure diagram of the utility model;

[0014] Fig. 2 It is the structure diagram of lamination platform in the utility model;

[0015] Fig. 3 It is the structure diagram of diaphragm conveying assembly in the utility model;

[0016] Fig. 4 It is the structure diagram of diaphragm cutting assembly in the utility model;

[0017] Mark explanation:

[0018] 1, installation platform; 2, Y-axis drive assembly; 3, movable bottom plate; 4, laminated platform; 41, first mounting seat; 42, first lifting drive assembly; 43, laminated platform; 431, material taking avoidance groove; 44, film pressing assembly; 441, second mounting seat; 442, first X-axis sliding table; 443, X-axis cylinder; 444, first movable stand; 445, first Z-axis cylinder; 446, metal pressing plate; 45, deviation rectifying assembly; 451, deviation rectifying motor; 452, second X-axis sliding table; 453, deviation rectifying platform; 5, diaphragm conveying assembly; 51, roller mounting frame; 52, feeding roller; 53, guide rod; 6, diaphragm cutting assembly; 61, third mounting seat; 62, second lifting drive assembly; 63, second movable stand; 64, second Z-axis cylinder;

[0019] 65, third movable stand; 66, cutting wire. DETAILED DESCRIPTION

[0020] The utility model is further explained in connection with the drawings as follows:

[0021] As Figs. 1 to 4 shown, a kind of high-efficiency pole piece laminating mechanism, including installation platform 1, Y-axis drive assembly 2, movable bottom plate 3, laminated platform 4 and diaphragm conveying assembly 5, Y-axis drive assembly 2 is fixed in installation platform 1 top, movable bottom plate 3 is fixed in the power output end of Y-axis drive assembly 2, laminated platform 4 is fixed in movable bottom plate 3 top, diaphragm conveying assembly 5 is erected in the top middle part of Y-axis drive assembly 2;

[0022] The laminated platform 4 comprises a first mounting seat 41, a first lifting driving assembly 42, a laminated carrier 43 and a film pressing assembly 44. The first mounting seat 41 is fixed above the movable bottom plate 3. The first lifting driving assembly 42 is fixed on the first mounting seat 41. The laminated carrier 43 is fixed on the power output end of the first lifting driving assembly 42. The film pressing assembly 44 comprises a second mounting seat 441, a first X-axis sliding table 442, an X-axis cylinder 443, a first movable stand 444, a first Z-axis cylinder 445 and a metal pressing plate 446. The second mounting seat 441 is fixed on the movable bottom plate 3. The first X-axis sliding table 442 and the X-axis cylinder 443 are fixed on the second mounting seat 441. The first movable stand 444 is fixed on the power output end of the X-axis cylinder 443 and is in sliding connection with the first X-axis sliding table 442. The first Z-axis cylinder 445 is fixed on the first movable stand 444. The metal pressing plate 446 is fixed on the power output end of the first Z-axis cylinder 445 and is above the edges of the laminated carrier 43. The first X-axis sliding table 442, the X-axis cylinder 443, the first movable stand 444, the first Z-axis cylinder 445 and the metal pressing plate 446 are arranged in two groups on the front and back sides of the second mounting seat 441. The two groups of metal pressing plates 446 correspond to the front and back sides of the laminated carrier 43 respectively. The film pressing assembly 44 is arranged in two groups and corresponds to the left and right sides of the laminated carrier 43 respectively.

[0023] The Y-axis driving assembly 2 drives the laminated platform 4 to reciprocate forward and backward. The diaphragm is discharged from the diaphragm conveying assembly 5. The end of the diaphragm is laid on the laminated carrier 43. The four corners of the diaphragm are pressed tightly by the four groups of metal pressing plates 446. When the laminated carrier 43 runs to the front side of the Y-axis driving assembly 2, the first Z-axis cylinder 445 at the back side drives the metal pressing plate 446 to lift and exit outward under the drive of the X-axis cylinder 443. Then, the pole piece feeding station at the front side places a pole piece above the diaphragm. Then, the metal pressing plate 446 at the back side resets inward and then presses the pole piece downward. The laminated carrier 43 runs to the back side of the Y-axis driving assembly 2. During the movement of the laminated carrier 43 backward, the diaphragm is automatically folded forward under the pulling of the laminated carrier 43 and covers a layer of diaphragm on the pole piece. Then, the first Z-axis cylinder 445 at the front side drives the metal pressing plate 446 to lift and exit outward under the drive of the X-axis cylinder 443. Then, the pole piece feeding station at the back side places a pole piece above the diaphragm. Then, the metal pressing plate 446 at the front side resets inward and then presses the pole piece downward. The laminated carrier 43 runs to the front side of the Y-axis driving assembly 2. The operation is repeated to make the diaphragm laid in Z shape on the laminated carrier 43 and the pole pieces are placed between the diaphragms. As the thickness of the laminated piece gradually increases, the first lifting driving assembly 42 drives the laminated carrier 43 to gradually descend to adapt to the feeding position of the pole piece feeding station. The advantage of the design is that the laminated carrier 43 can be driven to reciprocate forward and backward, so that the pole piece feeding station can be arranged in two groups on the front and back sides. The two groups of pole piece feeding stations are alternately fed, thereby improving the efficiency of the laminated piece.

[0024] The lamination platform 4 further comprises a deviation rectifying assembly 45, which comprises a deviation rectifying motor 451, a second X-axis sliding table 452 and a deviation rectifying carrier 453. The deviation rectifying motor 451 and the second X-axis sliding table 452 are fixed on the first mounting base 41. The deviation rectifying carrier 453 is fixed on the power output end of the deviation rectifying motor 451 and is in sliding connection with the second X-axis sliding table 452. The upper end surface of the deviation rectifying carrier 453 is flush with the upper end surface of the lamination carrier 43. The rear side of the deviation rectifying carrier 453 and the front side of the lamination carrier 43 are both provided with suction air holes, which are connected with a suction equipment.

[0025] Before the lamination starts, the end of the diaphragm is laid flat on the lamination carrier 43. Four sets of metal pressing plates 446 press the diaphragm tightly. Then the position of the diaphragm can be adjusted by the deviation rectifying assembly 45. During the adjustment, the metal pressing plate 446 on the front side is released first. Then the suction air holes on the rear side of the deviation rectifying carrier 453 adsorb the diaphragm. The position of the diaphragm is sensed by a sensor on the equipment. According to the position information, the deviation rectifying motor 451 drives the deviation rectifying carrier 453 to move on the second X-axis sliding table 452, so that the diaphragm is in the required position. Then the suction air holes on the front side of the lamination carrier 43 also adsorb the diaphragm, so that the position of the diaphragm is fixed firmly. Then the metal pressing plate 446 on the front side presses the diaphragm tightly again. Thus the deviation rectifying process of the diaphragm is completed.

[0026] The diaphragm conveying assembly 5 is provided with a discharging roller assembly corresponding to the upper side of the Y-axis driving assembly 2. The discharging roller assembly comprises a roller mounting frame 51, discharging rollers 52 and a guide rod 53. The discharging rollers 52 are rotatably mounted on the roller mounting frame 51. Two sets of discharging rollers 52 are arranged side by side in front of and behind each other. The guide rod 53 is fixed on the roller mounting frame 51 and corresponds to the lower rear side of the discharging rollers 52.

[0027] The diaphragm material belt is discharged by the diaphragm conveying assembly 5. The end of the diaphragm material belt passes through the two sets of discharging rollers 52 and then winds around the upper end of the guide rod 53 and is laid on the lamination carrier 43.

[0028] In the present design, the diaphragm cutting assembly 6 is further included. The diaphragm cutting assembly 6 comprises a third mounting base 61, a second lifting driving assembly 62, a second movable stand 63, a second Z-axis cylinder 64, a third movable stand 65 and a cutting wire 66. The third mounting base 61 is fixed above the mounting platform 1. The second lifting driving assembly 62 is fixed on the third mounting base 61. The second movable stand 63 is fixed on the power output end of the second lifting driving assembly 62. The second Z-axis cylinder 64 is fixed on the second movable stand 63. The third movable stand 65 is fixed on the power output end of the second Z-axis cylinder 64. The cutting wire 66 is arranged along the X-axis direction and both ends thereof are fixed on the lower end of the third movable stand 65. The cutting wire 66 corresponds to the rear side of the guide rod 53. The cutting wire 66 is connected with a heating equipment.

[0029] When the laminations reach the specified thickness, the Y-axis drive assembly 2 drives the lamination carrier 43 to the rear side, and the cutting wire 66 is cut between the guide rod 53 and the rear metal pressing plate 446, then the second lifting drive assembly 62 drives the second movable stand 63 to descend, so that the cutting wire 66 approaches the diaphragm, and then the third movable stand 65 is driven to descend by the second Z-axis cylinder 64, so that the cutting wire 66 in a high-temperature state contacts the diaphragm and cuts the diaphragm.

[0030] The rear side of the lamination carrier 43 is provided with a material taking avoidance groove 431, the rear end of the material taking avoidance groove 431 is open, and the material taking avoidance groove 431 is provided with two groups and corresponds to the left and right sides of the lamination carrier 43.

[0031] The material taking avoidance groove 431 is arranged at the rear side of the lamination carrier 43, so that the subsequent process can be facilitated to grasp the semi-finished product of the completed laminations by the clamping jaw.

[0032] The above is not intended to limit the technical scope of the present application in any way, and any modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belong to the technical scope of the present application.

Claims

1. A high efficiency pole piece lamination mechanism characterized by: The device comprises a mounting platform, a Y-axis driving assembly, a movable base plate, a laminated platform and a diaphragm conveying assembly, the Y-axis driving assembly is fixed above the mounting platform, the movable base plate is fixed at the power output end of the Y-axis driving assembly, the laminated platform is fixed above the movable base plate, and the diaphragm conveying assembly is arranged above the middle part of the Y-axis driving assembly. The laminated platform comprises a first mounting seat, a first lifting driving assembly, a laminated stage and a film pressing assembly, the first mounting seat is fixed above the movable base plate, the first lifting driving assembly is fixed on the first mounting seat, the laminated stage is fixed at the power output end of the first lifting driving assembly, the film pressing assembly comprises a second mounting seat, a first X-axis sliding table, an X-axis cylinder, a first movable stand, a first Z-axis cylinder and a metal pressing plate, the second mounting seat is fixed on the movable base plate, the first X-axis sliding table and the X-axis cylinder are fixed on the second mounting seat, the first movable stand is fixed at the power output end of the X-axis cylinder and is in sliding connection with the first X-axis sliding table, the first Z-axis cylinder is fixed on the first movable stand, the metal pressing plate is fixed at the power output end of the first Z-axis cylinder and is above the edges of the laminated stage, and the first X-axis sliding table, the X-axis cylinder, the first movable stand, the first Z-axis cylinder and the metal pressing plate are arranged in two groups on the front and back sides of the second mounting seat, and the two groups of metal pressing plates correspond to the front and back sides of the laminated stage respectively, and the film pressing assembly is arranged in two groups and corresponds to the left and right sides of the laminated stage respectively.

2. The high efficiency pole piece lamination mechanism of claim 1, wherein: The laminated platform further comprises a deviation rectifying assembly, the deviation rectifying assembly comprises a deviation rectifying motor, a second X-axis sliding table and a deviation rectifying stage, the deviation rectifying motor and the second X-axis sliding table are fixed on the first mounting seat, the deviation rectifying stage is fixed at the power output end of the deviation rectifying motor and is in sliding connection with the second X-axis sliding table, the upper end surface of the deviation rectifying stage is flush with the upper end surface of the laminated stage, the rear side of the deviation rectifying stage and the front side of the laminated stage are both provided with suction air holes, and the suction air holes are connected with a suction equipment.

3. The high efficiency pole piece lamination mechanism of claim 1, wherein: The diaphragm conveying assembly is provided with a discharging roller assembly corresponding to the upper part of the Y-axis driving assembly, the discharging roller assembly comprises a roller mounting frame, a discharging roller and a guide rod, the discharging roller is rotatably mounted on the roller mounting frame, two groups of discharging rollers are arranged side by side in front of and behind the discharging roller, and the guide rod is fixed on the roller mounting frame and corresponds to the lower rear side of the discharging roller.

4. A high efficiency pole piece lamination mechanism as defined in claim 3, wherein: Also include a diaphragm cutting assembly, the diaphragm cutting assembly includes a third mounting seat, a second lifting drive assembly, a second movable stand, a second Z-axis cylinder, a third movable stand and a cutting wire, the third mounting seat is fixed above the mounting platform, the second lifting drive assembly is fixed on the third mounting seat, the second movable stand is fixed on the power output end of the second lifting drive assembly, the second Z-axis cylinder is fixed on the second movable stand, the third movable stand is fixed on the power output end of the second Z-axis cylinder, the cutting wire is arranged along the X-axis direction and both ends are fixed on the lower end of the third movable stand, the cutting wire corresponds to the rear side of the guide rod, and the cutting wire is connected with a heating device.

5. The high efficiency pole piece lamination mechanism of claim 1, wherein: The rear side of the lamination carrier is provided with a material taking avoidance groove, the rear end of the material taking avoidance groove is open, and the material taking avoidance groove is provided with two groups and corresponds to the left and right sides of the lamination carrier.

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