Lithium battery cutting and stacking machine

Abstract

The invention belongs to the technical field of lithium battery manufacturing, and particularly relates to a lithium battery cutting and stacking machine which comprises a cutting and stacking rack. A diaphragm box is fixedly connected to the bottom face of the protruding part of the cutting and stacking machine frame. The inner wall of the diaphragm box is in sliding connection with an electric sliding frame; a plurality of first electric push rods oppositely fix single diaphragm rollers in pairs, the diaphragm rollers are installed in a diaphragm box for use, extrusion plates are attached to diaphragms of the diaphragm rollers to monitor the remaining amount of the diaphragms in real time, and a pressure sensor is triggered when the diaphragms on the diaphragm roller at the bottommost end are about to be used up; the diaphragm roller falling to the bottommost end is controlled to be replaced with a new diaphragm roller with a diaphragm, a traditional lithium battery cutting and stacking machine is replaced, the efficiency influence caused by lack of the diaphragm can be reduced, the two pressing and covering plates are used for pressing and covering the pole pieces in a staggered mode to achieve the Z-shaped stacking and winding effect, the pole pieces are stacked and wound left and right on the first sliding rail in a reciprocating mode through the electric sliding table, and the working efficiency is improved. And after the lithium battery is wound, the cutting knife is matched with the matching plate for cutting, so that the cutting and stacking manufacturing of the lithium battery is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of lithium battery manufacturing, in particular to a lithium battery cutting and stacking machine. Background Art

[0002] Lithium battery is a battery with lithium metal or lithium alloy as positive and negative electrode materials, combined with non-aqueous electrolyte solution. The cutting and stacking machine is one of the key equipment in the production of lithium batteries. The robot cooperates with the stacking table to drive the diaphragm to move back and forth left and right to form a Z-shaped stack, thereby realizing the manufacturing of lithium battery stacks.

[0003] A patent application with publication number CN117013041A discloses a three-station lithium battery cutting and stacking machine, which is composed of three parts in sequence: segment making, stacking and hot pressing; the segment making includes positive electrode sheet segment and negative electrode sheet segment, and the positive electrode sheet segment and negative electrode sheet segment include a electrode sheet unwinding mechanism, a electrode sheet positioning mechanism, a rounded corner punching mechanism and a electrode sheet cutting mechanism from material roll unwinding to electrode sheet output; this application mainly reduces the floor space, effectively improves the production efficiency of the machine, and reduces production costs.

[0004] The above-mentioned lithium battery cutting and stacking machine mainly integrates multiple cutting and stacking stations on one machine. Multiple cutting and stacking stations share one section making section and one hot pressing section, thereby reducing its footprint. However, during the manufacturing of the current lithium battery cutting and stacking machine, since the diaphragm of the cutting and stacking machine is usually wound on a single roller for use, when there is not much diaphragm stacking left, it is difficult to automatically monitor and control the replacement of the diaphragm roller, which makes the final lithium battery difficult to form and requires rework of the semi-finished product, which easily reduces the manufacturing efficiency of the lithium battery.

[0005] To this end, the present invention provides a lithium battery cutting and stacking machine. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a lithium battery cutting and stacking machine described in the present invention comprises a cutting and stacking machine frame; a diaphragm box is fixedly connected to the bottom surface of the protruding part of the cutting and stacking machine frame; an electric slide is slidably connected to the inner wall of the diaphragm box; a plurality of No. 1 electric push rods are fixedly connected to the outer wall of the electric slide, and the plurality of No. 1 electric push rods are arranged opposite to each other in pairs; diaphragm rollers are installed at the output ends of the two No. 1 electric push rods; an extrusion plate is arranged inside the diaphragm box, and the end of the extrusion plate is arranged obliquely, and the extrusion plate is attached to the outer wall of the diaphragm roller at the bottom of the diaphragm box; a monitoring component is arranged inside the diaphragm box, and the monitoring component cooperates with the extrusion plate to monitor the remaining amount of diaphragm on the diaphragm roller in real time.

[0008] Preferably, the monitoring assembly includes a connecting rod, an elastic member No. 1, a sliding rod and a pressure sensor; the connecting rod is slidably connected to the inner wall of the diaphragm box, and the side of the connecting rod away from the diaphragm box is fixed to the outer wall of the extrusion plate; the elastic member No. 1 is sleeved on the connecting rod, and the elastic member No. 1 is located between the outer wall of the connecting rod and the inner wall of the diaphragm box; the sliding rod No. 1 is slidably connected to the inner wall of the diaphragm box near the top of the connecting rod, and the bottom end of the sliding rod No. 1 is set as an arc; the pressure sensor is fixed to the inner wall of the diaphragm box, and the pressure sensor is located above the sliding rod No. 1, and the pressure sensor is electrically connected to the electric slide.

[0009] Preferably, a No. 1 electric slider is slidably connected to the inner wall of the diaphragm box and the side away from the extrusion plate; a No. 2 electric push rod is fixedly connected to the outer wall of the No. 1 electric slider; and a vacuum suction plate is fixedly connected to the output end of the No. 2 electric push rod.

[0010] Preferably, a No. 1 slide rail is fixedly connected to the middle of the end face of the cutting and stacking machine frame; an electric slide is slidably connected to the No. 1 slide rail; a cutting rack is fixedly connected to the outer wall of the bottom end of the diaphragm box; a cutting knife is slidably connected to the inner wall of the cutting rack via a No. 2 electric slide block; a matching plate is fixedly connected to the bottom end of the diaphragm box and on the side opposite to the cutting rack.

[0011] Preferably, the groove end surface of the electric slide is fixedly connected to two No. 2 slide rails; the ends of the two No. 2 slide rails are slidably connected to a No. 3 electric slide block; the top of the No. 3 electric slide block is fixedly connected to a No. 1 electric cylinder; the output end of the No. 1 electric cylinder is fixedly connected to a pressure covering plate.

[0012] Preferably, two unloading tables are fixedly connected to the side of the end surface of the cutting and stacking machine frame, and the two unloading tables are located on both sides of the diaphragm box and arranged opposite to each other; two No. 4 electric slides are slidably connected to the bottom surface of the protruding part of the cutting and stacking machine frame, and the No. 4 electric slide is located directly above the unloading table; the bottom end of the No. 4 electric slide is fixedly connected to the No. 2 electric cylinder; the output end of the No. 2 electric cylinder is fixedly connected to the vacuum suction cup.

[0013] Preferably, guide frames are fixedly connected to the top ends of the two unloading tables; the cross-sectional shape of the guide frames is square, and the ends of the guide frames are all arranged in arc shapes.

[0014] Preferably, a collecting box is fixedly connected to the outside of the electric slide; a deep groove is opened in the middle of the collecting box, and the width of the deep groove is set corresponding to the diameter of the diaphragm roller.

[0015] Preferably, a sliding plate is slidably connected to the inner wall of the collection box; an arc-shaped groove is provided at the end of the sliding plate; and a second elastic member is fixedly connected to the bottom end of the sliding plate.

[0016] Preferably, an extrusion block is fixedly connected to the end of the No. 1 slide rail; a No. 2 slide rod is slidably connected to the inner wall of the electric slide, and the bottom end of the No. 2 slide rod is arc-shaped; and a support plate is fixedly connected to the top end of the No. 2 slide rod.

[0017] The beneficial effects of the present invention are as follows: 1. The lithium battery cutting and stacking machine described in the present invention fixes a single diaphragm roller relatively to each other in pairs through multiple No. 1 electric push rods, and multiple diaphragm rollers are installed inside a diaphragm box for use. An extrusion plate is attached to the diaphragm of the diaphragm roller to monitor the remaining amount of the diaphragm in real time. When the diaphragm on the bottom diaphragm roller is almost used up, a pressure sensor is triggered to control the diaphragm roller to fall and replace it with a new diaphragm roller with a diaphragm, thereby replacing the traditional lithium battery cutting and stacking machine, which can reduce the efficiency impact caused by the lack of diaphragm, and use an external vacuum pump in conjunction with a vacuum suction plate to adsorb the newly replaced diaphragm, and the adsorbed diaphragm is pulled and traction to the outside of the diaphragm box, which is convenient for pulling and using the new diaphragm, and two pressing plates are used to alternately press the pole pieces to achieve the effect of Z-shaped winding, and an electric slide is used to reciprocate left and right on the No. 1 slide rail to fold the pole pieces, and a cutting knife is used in conjunction with a matching plate to cut after the lithium battery winding is completed, thereby realizing the cutting and stacking of lithium batteries.

[0018] 2. The lithium battery cutting and stacking machine described in the present invention realizes the function of staggered loading of the pole pieces during the lithium battery stacking process by means of two vacuum suction cups connected to an external vacuum pump to absorb the pole pieces. The guide frame is fixed to the end of the unloading table for guidance, which can improve the precision of pole piece placement and stacking. The used diaphragm rollers are collected by a collection box. The sliding plate is pressed down to slide each time a diaphragm roller is collected, so that the stacking and collection of multiple diaphragm rollers can be realized. After the lithium battery stacking is completed, an electric slide is used to slide close to the extrusion block. The extrusion block can squeeze the No. 2 sliding rod to cooperate with the support plate to push the lithium battery, so that a gap is generated between the lithium battery and the end of the electric slide, which is convenient for collecting the stacked lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 It is a schematic diagram of the structure of the vacuum suction cup in the present invention; Figure 3 It is a partial structural cross-sectional view of the diaphragm box in the present invention; Figure 4 It is a schematic diagram of the structure of the electric slide in the present invention; Figure 5 It is a structural schematic diagram of the operating table in the present invention; Figure 6 It is a partial structural sectional view of the operating table in the present invention.

[0021] In the figure: 1. cutting and stacking frame; 11. diaphragm box; 12. electric slide; 13. No. 1 electric push rod; 14. diaphragm roller; 15. extrusion plate; 2. connecting rod; 21. No. 1 elastic part; 22. No. 1 sliding rod; 23. pressure sensor; 3. No. 1 electric slide; 31. No. 2 electric push rod; 32. vacuum suction plate; 4. No. 1 slide rail; 41. electric slide; 42. cutting knife frame; 43. cutting knife; 44. matching plate; 5. No. 2 slide rail; 51. No. 3 electric slide; 52. No. 1 electric cylinder; 53. pressing plate; 6. unloading table; 61. No. 4 electric slide; 62. No. 2 electric cylinder; 63. vacuum suction cup; 7. guide frame; 8. collecting box; 81. sliding plate; 82. No. 2 elastic part; 9. extrusion block; 91. No. 2 sliding rod; 92. supporting plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figures 1 to 4As shown, a lithium battery stacking machine according to an embodiment of the present invention comprises a stacking machine frame 1; a diaphragm box 11 is fixedly connected to the bottom surface of the protruding portion of the stacking machine frame 1; an electric slide 12 is slidably connected to the inner wall of the diaphragm box 11; a plurality of No. 1 electric push rods 13 are fixedly connected to the outer wall of the electric slide 12, and the plurality of No. 1 electric push rods 13 are arranged opposite to each other in pairs; a diaphragm roller 14 is installed at the output end of the two No. 1 electric push rods 13; an extrusion plate 15 is arranged inside the diaphragm box 11, and an extrusion plate 15 is arranged inside the diaphragm box 11. The end of the pressing plate 15 is inclined, and the extrusion plate 15 is attached to the outer wall of the diaphragm roller 14 at the bottom of the diaphragm box 11; a monitoring component is arranged inside the diaphragm box 11, and the monitoring component cooperates with the extrusion plate 15 to monitor the remaining amount of the diaphragm on the diaphragm roller 14 in real time; when the lithium battery is cut and stacked, the cutting and stacking machine frame 1 is used as the main frame of the lithium battery cutting and stacking machine, firstly, a plurality of diaphragm rollers 14 are vertically loaded into the interior of the diaphragm box 11, and each diaphragm roller 14 is respectively installed on the electric slide 12 Between the two opposite No. 1 electric push rods 13, after the diaphragm roller 14 is placed between the two No. 1 electric push rods 13, the output ends of the two No. 1 electric push rods 13 slide relatively, so that the output ends of the two No. 1 electric push rods 13 are inserted into the two ends of the diaphragm roller 14, and the diaphragm roller 14 can rotate on the outer walls of the output ends of the two No. 1 electric push rods 13, and the outer wall of the bottom diaphragm roller 14 is attached with an extrusion plate 15 through a monitoring component, and the extrusion plate 15 can monitor the remaining amount in real time according to the usage of the diaphragm on the diaphragm roller 14. When the diaphragm remaining on the diaphragm roller 14 is less, the monitoring component is triggered to send a signal to the controller, and the controller controls the output ends of the two opposite No. 1 electric push rods 13 at the bottom to retract, so that the bottom diaphragm roller 14 falls, and then the electric slide 12 slides down electrically, and the electric slide 12 drives another diaphragm roller 14 to squeeze the inclined surface of the extrusion plate 15, so that the detection component is reset to continue real-time monitoring, replacing the traditional lithium battery cutting and stacking machine, and can reduce the efficiency impact caused by the lack of diaphragm.

[0024] The monitoring assembly includes a connecting rod 2, an elastic member 21, a sliding rod 22 and a pressure sensor 23; the connecting rod 2 is slidably connected to the inner wall of the diaphragm box 11, and the side of the connecting rod 2 away from the diaphragm box 11 is fixedly connected to the outer wall of the extrusion plate 15; the elastic member 21 is sleeved on the connecting rod 2, and the elastic member 21 is located between the outer wall of the connecting rod 2 and the inner wall of the diaphragm box 11; the sliding rod 22 is slidably connected to the inner wall of the diaphragm box 11 near the top of the connecting rod 2, and the bottom end of the sliding rod 22 is an arc setting; the pressure sensor 23 is fixedly connected to the inner wall of the diaphragm box 11, and the pressure sensor 23 is located above the sliding rod 22, and the pressure sensor 23 is electrically connected to the electric slide 12; when the diaphragm on the bottom diaphragm roller 14 is in use, the pressure of the connecting rod 2 is used The connected extrusion plate 15 fits tightly against the diaphragm on the diaphragm roller 14. As the diaphragm is used less and less, the No. 1 elastic member 21 continues to contract and pull the connecting rod 2 to slide, so that the extrusion plate 15 fits against the remaining diaphragm until the connecting rod 2 squeezes the arc bottom surface of the No. 1 sliding rod 22 during its sliding process. After the No. 1 sliding rod 2 slides up, it squeezes and triggers the pressure sensor 23. The pressure sensor 23 sends a signal to the controller. The controller controls the two No. 1 electric push rods 13 at the bottom to release the diaphragm roller 14. After the diaphragm roller 14 falls off, the next diaphragm roller 14 is replaced. The next diaphragm roller 14 slides down to squeeze the extrusion plate 15 and the connecting rod 2 to slide. At this time, the No. 1 elastic member 21 stretches and releases the squeezing of the pressure sensor 23, thereby automatically detecting the remaining amount of diaphragm on the diaphragm roller 14 and replacing the diaphragm roller 14.

[0025] like Figures 1 to 3 As shown, an electric slider No. 3 is slidably connected to the inner wall of the diaphragm box 11 and the side away from the extrusion plate 15; a No. 2 electric push rod 31 is fixedly connected to the outer wall of the No. 1 electric push rod 3; and a vacuum suction plate 32 is fixedly connected to the output end of the No. 2 electric push rod 31; when a new diaphragm roller 14 is replaced, the No. 1 electric slider 3 is driven to slide down and drive the No. 2 electric push rod 31 to slide on the inner wall of the diaphragm box 11 away from the extrusion plate 15, the output end of the No. 2 electric push rod 31 extends out and drives the vacuum suction plate 32 to fit the diaphragm of the newly replaced diaphragm roller 14, and an external vacuum pump cooperates with the vacuum suction plate 32 to absorb the diaphragm. As the No. 1 electric slider 3 continues to slide down, the vacuum suction plate 32 absorbs the diaphragm and pulls it to the outside of the diaphragm box 11, which is convenient for pulling and using the new diaphragm.

[0026] like Figures 1 to 3 , Figure 5 , Figure 6As shown, a No. 1 slide rail 4 is fixedly connected to the middle of the end face of the cutting and stacking machine frame 1; an electric slide 41 is slidably connected to the No. 1 slide rail 4; a cutting knife frame 42 is fixedly connected to the outer wall of the bottom end of the diaphragm box 11; a cutting knife 43 is slidably connected to the inner wall of the cutting knife frame 42 through a No. 2 electric slide block; a matching plate 44 is fixedly connected to the bottom end of the diaphragm box 11 and the side opposite to the cutting knife frame 42; when the lithium battery is cut and stacked, the lithium battery material is picked up by a robot and placed in the middle of the electric slide 41, and the electric slide 41 is used to slide back and forth on the No. 1 slide rail 4 to match the diaphragm stacking and winding of the lithium battery material, until the lithium battery stacking is completed, the No. 2 electric slide block inside the cutting knife frame 42 drives the cutting knife 43 to slide, and the cutting knife 43 cooperates with the matching plate 44 to cut the diaphragm, thereby realizing the cutting and stacking of the lithium battery.

[0027] like Figure 1 and Figure 5 As shown, the groove end surface of the electric slide 41 is fixedly connected with two No. 2 slide rails 5; the ends of the two No. 2 slide rails 5 are slidably connected with the No. 3 electric slider 51; the top of the No. 3 electric slider 51 is fixedly connected with the No. 1 electric cylinder 52; the output end of the No. 1 electric cylinder 52 is fixedly connected with the pressing plate 53; when the lithium battery is stacked and wound, the two No. 3 electric sliders 51 slide alternately on the two No. 2 slide rails 5 respectively, when the output end of one No. 1 electric cylinder 52 contracts and drives the pressing plate 53 to press on the pole piece, the output end of the other No. 1 electric cylinder 52 extends, cooperates with the No. 3 electric slider 51 to slide on the No. 2 slide rail 5 to drive the pressing plate 53 away from the pole piece, and the reciprocating motion realizes the Z-shaped stacking winding of the diaphragm to manufacture the lithium battery.

[0028] like Figure 1 and Figure 2 As shown, two unloading platforms 6 are fixedly connected to the side of the end surface of the cutting and stacking frame 1, and the two unloading platforms 6 are located on both sides of the diaphragm box 11 and are arranged opposite to each other; two No. 4 electric sliders 61 are slidably connected to the bottom surface of the protruding part of the cutting and stacking frame 1, and the No. 4 electric slider 61 is located directly above the unloading platform 6; the bottom end of the No. 4 electric slider 61 is fixedly connected to the No. 2 electric cylinder 62; the output end of the No. 2 electric cylinder 62 is fixedly connected to the vacuum suction cup 63; when the electrode pieces are loaded, the electrode pieces are respectively placed by the robot It is intermittently placed at the end of the two unloading tables 6, and a No. 4 electric slider 61 drives the No. 2 electric cylinder 62 to slide to the top of the unloading table 6. The output end of the No. 2 electric cylinder 62 extends, driving the vacuum suction cup 63 connected to the external vacuum pump to adsorb the pole pieces on the unloading table 6, and the other group of No. 4 electric sliders 61 slide alternately to drive the already adsorbed pole pieces to be placed on the electric slide 41 for stacking. The two No. 4 electric sliders 61 move alternately and intermittently, which plays a role in automatically loading the lithium battery pole pieces.

[0029] A guide frame 7 is fixedly connected to the top of the two unloading tables 6; the cross-sectional shape of the guide frame 7 is square, and the ends of the guide frame 7 are all arc-shaped; when the lithium battery pole pieces are loaded, the guide frame 7 is fixed to the end of the unloading table 6. When the pole pieces are placed on the unloading table 6, they can be guided by the arc-shaped surfaces around the ends of the guide frame 7, so that the pole pieces are centered on the end surface of the unloading table 6, which is convenient for the vacuum suction cup 63 to adsorb and pick up the pole pieces and place them on the electric slide 41 for stacking and winding, thereby improving the precision of the stacking and winding of the lithium battery pole pieces.

[0030] like Figure 1 , Figure 5 and Figure 6 As shown, a collecting box 8 is fixedly connected to the outside of the electric slide 41; a deep groove is opened in the middle of the collecting box 8, and the width of the deep groove is set corresponding to the diameter of the diaphragm roller 14; when the diaphragm on the bottom diaphragm roller 14 is almost used up, the electric slide 41 is used to drive the collecting box 8 to slide to the position directly below the diaphragm box 11, and the diaphragm roller 14 at the bottom is released and lowered, and the diaphragm roller 14 can fall into the deep groove of the collecting box 8 for temporary storage. As the diaphragm on each diaphragm roller 14 is used up, it falls and is stored in the deep groove of the collecting box 8 and is stacked, thereby collecting the diaphragm rollers 14 and facilitating their recycling.

[0031] The inner wall of the collection box 8 is slidably connected with a sliding plate 81; an arc groove is formed at the end of the sliding plate 81; a second elastic member 82 is fixedly connected to the bottom end of the sliding plate 81; when the used diaphragm rollers 14 are recovered, the first diaphragm roller 14 falls into the interior of the collection box 8 and is temporarily stored on the arc groove of the sliding plate 81. The self-weight of the diaphragm roller 14 presses down the second elastic member 82 to shrink, causing the sliding plate 81 to slide down a short distance, and when the second diaphragm roller 14 falls on the collection box, the second diaphragm roller 14 is stored on the arc groove of the sliding plate 81. When the diaphragm rollers 14 are in the collection box 8, the second diaphragm roller 14 is stacked on the first diaphragm roller 14, and the gravity of the two diaphragm rollers 14 presses the sliding plate 81 down again, and the subsequent diaphragm rollers 14 are stored in this way, which plays the role of stacking and storing the diaphragm rollers 14. When the recovered diaphragm rollers 14 are taken out from the collection box 8, each time a diaphragm roller 14 is taken out, the No. 2 elastic member 82 elastically squeezes the sliding plate 81 to slide up a short distance, which can facilitate the picking up of the diaphragm rollers 14 stored in the collection box 8.

[0032] An extrusion block 9 is fixedly connected to the end of the No. 1 slide rail 4; a No. 2 slide rod 91 is slidably connected to the inner wall of the electric slide 41, and the bottom end of the No. 2 slide rod 91 is arc-shaped; a support plate 92 is fixedly connected to the top of the No. 2 slide rod 91; when the lithium battery pole pieces are stacked and wound, the electric slide 41 drives the stacked lithium battery to slide on the No. 1 slide rail 4 until the electric slide 41 slides to the extrusion block 9, and the extrusion block 9 squeezes the arc-shaped surface at the bottom end of the No. 2 slide rod 91, and the squeezed No. 2 slide rod 91 slides up, and the No. 2 slide rod 91 cooperates with the support plate 92 to lift the stacked lithium battery at the center end of the electric slide 41, and a gap is generated between the lithium battery and the end of the electric slide 41, which is convenient for picking up and collecting the stacked lithium batteries.

[0033] Working process: When cutting and stacking lithium batteries, the stacking machine frame 1 is used as the main frame of the lithium battery stacking machine. First, multiple diaphragm rollers 14 are vertically loaded into the interior of the diaphragm box 11, and each diaphragm roller 14 is respectively installed between two opposite No. 1 electric push rods 13 on the electric slide 12. After the diaphragm roller 14 is placed between the two No. 1 electric push rods 13, the output ends of the two No. 1 electric push rods 13 slide relatively, so that the output ends of the two No. 1 electric push rods 13 are inserted into the two ends of the diaphragm roller 14, and the diaphragm roller 14 can be placed between the two No. 1 electric push rods. The outer wall of the output end of the push rod 13 rotates, and the outer wall of the bottom diaphragm roller 14 is attached with an extrusion plate 15 through a monitoring component. The extrusion plate 15 can monitor the remaining amount in real time according to the usage amount of the diaphragm on the diaphragm roller 14. When the diaphragm remaining on the diaphragm roller 14 is less, the monitoring component is triggered to send a signal to the controller, and the controller controls the output ends of the two opposite No. 1 electric push rods 13 at the bottom to retract, so that the bottom diaphragm roller 14 falls, and then the electric slide 12 slides down electrically, and the electric slide 12 drives another diaphragm roller 14 to squeeze and squeeze The inclined surface of the pressing plate 15 allows the detection component to reset and continue real-time monitoring, replacing the traditional lithium battery cutting and stacking machine, and can reduce the efficiency impact caused by the lack of diaphragms; when the diaphragm on the bottom diaphragm roller 14 is in use, the extrusion plate 15 connected by the connecting rod 2 is used to closely fit the diaphragm on the diaphragm roller 14. As the diaphragm is used less and less, the first elastic member 21 continues to shrink and pull the connecting rod 2 to slide, so that the extrusion plate 15 fits on the remaining diaphragm until the arc bottom of the first sliding rod 22 is squeezed during the sliding process of the connecting rod 2. The first sliding rod 22 slides up and squeezes the trigger pressure sensor 23, and the pressure sensor 23 sends a signal to the controller. The controller controls the two No. 1 electric push rods 13 at the bottom to loosen the diaphragm roller 14. After the diaphragm roller 14 falls, the next diaphragm roller 14 is replaced. The next diaphragm roller 14 slides down to squeeze the squeezing plate 15 and the connecting rod 2. At this time, the No. 1 elastic member 21 stretches and releases the squeezing of the pressure sensor 23, which plays a role in automatically detecting the remaining amount of the diaphragm on the diaphragm roller 14 and replacing the diaphragm roller 14; After replacing a new diaphragm roller 14, the No. 1 electric slide block 3 is used to slide down to drive the No. 2 electric push rod 31 to slide on the inner wall of the diaphragm box 11 away from the extrusion plate 15. The output end of the No. 2 electric push rod 31 extends out and drives the vacuum suction plate 32 to fit the diaphragm of the newly replaced diaphragm roller 14. The external vacuum pump cooperates with the vacuum suction plate 32 to absorb the diaphragm. As the No. 1 electric slide block 3 continues to slide down, the vacuum suction plate 32 absorbs the diaphragm and pulls it to the outside of the diaphragm box 11, which is convenient for pulling and using the new diaphragm. When the lithium battery is cut and stacked, the lithium battery material is picked up by a manipulator and placed in the middle of the electric slide 41. The electric slide 41 is used to slide back and forth on the No. 1 slide rail 4 to cooperate with the diaphragm to stack the lithium battery material. After the lithium battery is stacked, the No. 2 electric slider inside the cutting knife frame 42 drives the cutting knife 43 to slide, and the cutting knife 43 cooperates with the matching plate 44 to cut the diaphragm to achieve the cutting and stacking of the lithium battery; when the lithium battery is stacked, the two No. 3 electric sliders 51 slide alternately on the two No. 2 slide rails 5, respectively. When the output end of a No. 1 electric cylinder 52 contracts and drives the pressing plate 53 to press on the pole piece, the output end of the other No. 1 electric cylinder 52 extends, and cooperates with the No. 3 electric slider 51 to slide on the No. 2 slide rail 5 to drive the pressing plate 53 away from the pole piece. After reciprocating motion, the diaphragm is stacked in a Z-shaped manner to manufacture the lithium battery; When loading the electrode sheets, the electrode sheets are intermittently placed on the ends of the two unloading tables 6 by the manipulator, and a No. 4 electric slider 61 drives the No. 2 electric cylinder 62 to slide to the top of the unloading table 6. The output end of the No. 2 electric cylinder 62 is extended, driving the vacuum suction cup 63 connected to the external vacuum pump to adsorb the electrode sheets on the unloading table 6, and the other group of No. 4 electric sliders 61 slide alternately to drive the already adsorbed electrode sheets to be placed on the electric slide 41 for stacking. The two No. 4 electric sliders 61 move alternately and intermittently, which plays a role in automatically loading the lithium battery electrode sheets; when loading the lithium battery electrode sheets, the guide frame 7 is fixed to the end of the unloading table 6. When the electrode sheets are placed on the unloading table 6, they can be guided by the arc-shaped surfaces around the end of the guide frame 7, so that the electrode sheets are placed in the center on the end face of the unloading table 6, which is convenient for the vacuum suction cup 63 to adsorb and pick up the electrode sheets and place them on the electric slide 41 for stacking, thereby improving the precision of stacking the lithium battery electrode sheets; When the diaphragm on the bottom diaphragm roller 14 is almost used up, the electric slide 41 is used to drive the collection box 8 to slide to the position just below the diaphragm box 11, and the diaphragm roller 14 at the bottom is released and lowered, and the diaphragm roller 14 can fall into the deep groove of the collection box 8 for temporary storage. As the diaphragm on each diaphragm roller 14 is used up, it falls and is stacked in the deep groove of the collection box 8, which plays the role of collecting the diaphragm rollers 14 and is convenient for recycling the diaphragm rollers 14. When the used diaphragm rollers 14 are recycled, the first diaphragm roller 14 falls into the interior of the collection box 8 and is temporarily stored on the arc groove of the sliding plate 81. The self-weight of the film roller 14 presses down the second elastic member 82 to contract, causing the sliding plate 81 to slide down a short distance. When the second diaphragm roller 14 falls into the collection box 8, the second diaphragm roller 14 is stacked on the first diaphragm roller 14. The weight of the two diaphragm rollers 14 presses down the sliding plate 81 again to slide down, and the subsequent diaphragm rollers 14 are stored in the same way, which plays the role of stacking and storing the diaphragm rollers 14. When the recycled diaphragm rollers 14 are taken out from the collection box 8, each time a diaphragm roller 14 is taken out, the second elastic member 82 elastically squeezes the sliding plate 81 to slide up a short distance, which can facilitate the picking up of the diaphragm rollers 14 stored in the collection box 8; When the lithium battery pole pieces are stacked and wound, the electric slide 41 drives the stacked lithium battery to slide on the No. 1 slide rail 4 until the electric slide 41 slides to the extrusion block 9. The extrusion block 9 squeezes the arc surface at the bottom end of the No. 2 sliding rod 91, and the squeezed No. 2 sliding rod 91 slides up. The No. 2 sliding rod 91 cooperates with the support plate 92 to lift the stacked lithium battery at the center end of the electric slide 41. A gap is generated between the lithium battery and the end of the electric slide 41, which is convenient for picking up and collecting the stacked lithium batteries.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A lithium battery cutting and stacking machine, characterized in that: The invention comprises a cutting and stacking frame (1); a diaphragm box (11) is fixedly connected to the bottom surface of the protruding part of the cutting and stacking frame (1); an electric slide (12) is slidably connected to the inner wall of the diaphragm box (11); a plurality of No. 1 electric push rods (13) are fixedly connected to the outer wall of the electric slide (12), and the plurality of No. 1 electric push rods (13) are arranged opposite to each other in pairs; a diaphragm roller (14) is installed at the output end of two No. 1 electric push rods (13); an extrusion plate (15) is arranged inside the diaphragm box (11), and the end of the extrusion plate (15) is arranged obliquely, and the extrusion plate (15) is attached to the outer wall of the diaphragm roller (14) at the bottom of the diaphragm box (11); a monitoring component is arranged inside the diaphragm box (11), and the monitoring component cooperates with the extrusion plate (15) to monitor the remaining amount of diaphragm on the diaphragm roller (14) in real time.

2. A lithium battery cutting and stacking machine according to claim 1, characterized in that: The monitoring assembly comprises a connecting rod (2), a first elastic member (21), a first sliding rod (22) and a pressure sensor (23); the connecting rod (2) is slidably connected to the inner wall of the diaphragm box (11), and the side of the connecting rod (2) away from the diaphragm box (11) is fixedly connected to the outer wall of the extrusion plate (15); the first elastic member (21) is sleeved on the connecting rod (2), and the first elastic member (21) is located between the outer wall of the connecting rod (2) and the inner wall of the diaphragm box (11); the first sliding rod (22) is slidably connected to the inner wall of the diaphragm box (11) near the top of the connecting rod (2), and the bottom end of the first sliding rod (22) is set in an arc shape; the pressure sensor (23) is fixedly connected to the inner wall of the diaphragm box (11), and the pressure sensor (23) is located above the first sliding rod (22), and the pressure sensor (23) is electrically connected to the electric slide (12).

3. The lithium battery cutting and stacking machine according to claim 1, characterized in that: A first electric slider (3) is slidably connected to the inner wall of the diaphragm box (11) and a side away from the extrusion plate (15); a second electric push rod (31) is fixedly connected to the outer wall of the first electric slider (3); and a vacuum suction plate (32) is fixedly connected to the output end of the second electric push rod (31).

4. The lithium battery cutting and stacking machine according to claim 1, characterized in that: A first slide rail (4) is fixedly connected to the middle of the end face of the cutting and stacking machine frame (1); an electric slide table (41) is slidably connected to the first slide rail (4); a cutting knife frame (42) is fixedly connected to the outer wall of the bottom end of the diaphragm box (11); a cutting knife (43) is slidably connected to the inner wall of the cutting knife frame (42) via a second electric slide block; a matching plate (44) is fixedly connected to the bottom end of the diaphragm box (11) and on the side opposite to the cutting knife frame (42).

5. A lithium battery cutting and stacking machine according to claim 4, characterized in that: The groove end surface of the electric slide (41) is fixedly connected to two No. 2 slide rails (5); the ends of the two No. 2 slide rails (5) are slidably connected to a No. 3 electric slide block (51); the top end of the No. 3 electric slide block (51) is fixedly connected to a No. 1 electric cylinder (52); and the output end of the No. 1 electric cylinder (52) is fixedly connected to a pressing plate (53).

6. The lithium battery cutting and stacking machine according to claim 1, characterized in that: Two material discharging platforms (6) are fixedly connected to the side of the end surface of the cutting and stacking frame (1), and the two material discharging platforms (6) are located on both sides of the diaphragm box (11) and are arranged opposite to each other; two No. 4 electric sliders (61) are slidably connected to the bottom surface of the protruding part of the cutting and stacking frame (1), and the No. 4 electric slider (61) is located directly above the material discharging platform (6); the bottom end of the No. 4 electric slider (61) is fixedly connected to the No. 2 electric cylinder (62); and the output end of the No. 2 electric cylinder (62) is fixedly connected to a vacuum suction cup (63).

7. A lithium battery cutting and stacking machine according to claim 6, characterized in that: A guide frame (7) is fixedly connected to the top ends of the two material discharging platforms (6); the cross-section of the guide frame (7) is square, and the ends of the guide frame (7) are all arranged in an arc shape.

8. The lithium battery cutting and stacking machine according to claim 4, characterized in that: A collecting box (8) is fixedly connected to the outside of the electric slide (41); a deep groove is provided in the middle of the collecting box (8), and the width of the deep groove is set corresponding to the diameter of the diaphragm roller (14).

9. A lithium battery cutting and stacking machine according to claim 8, characterized in that: A sliding plate (81) is slidably connected to the inner wall of the collection box (8); an arc-shaped groove is provided at the end of the sliding plate (81); and a second elastic member (82) is fixedly connected to the bottom end of the sliding plate (81).

10. The lithium battery cutting and stacking machine according to claim 4, characterized in that: The end of the first slide rail (4) is fixedly connected to an extrusion block (9); the inner wall of the electric slide table (41) is slidably connected to a second slide rod (91), the bottom end of the second slide rod (91) is arc-shaped; the top end of the second slide rod (91) is fixedly connected to a support plate (92).

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