Device for detecting positive and negative pole pieces of battery

Abstract

The invention relates to the technical field of battery positive and negative pole piece detection, in particular to a battery positive and negative pole piece detection device which comprises a fixing frame, a detection mechanism and a conveying mechanism, the detection mechanism and the conveying mechanism are mounted on the fixing frame, an electrode piece is placed on the conveying mechanism, and a film lifting mechanism is mounted on a clamping mechanism; a clamping plate can drive two supporting frames to move a part relatively when clamping an electrode plate, a fourth air cylinder is started to drive two transverse strips to move relatively before detection, due to the fact that a large gap is blown out between a diaphragm and the electrode plate, two sets of warping plates are inserted into the gap between the electrode plate and the diaphragm along with stretching of the fourth air cylinder, then a third air cylinder is started, and the electrode plate is detected. At the moment, the third air cylinder shrinks, two connecting rods pull two toothed plates at the same time, the two toothed plates relatively move to drive two gears to rotate, the rotating directions are opposite, at the moment, two driving rods drive two warping plates to rotate oppositely, the gap between the diaphragm and the electrode plate is enlarged, and it is avoided that the diaphragm swings at the bottom of the detection needle to affect detection.

Description

Technical Field

[0001] The present invention relates to the technical field of battery positive and negative electrode sheet detection, and specifically relates to a device for detecting battery positive and negative electrode sheets. Background Art

[0002] The positive and negative electrode sheets of a battery are the core components of the battery, directly affecting the energy density, charge and discharge performance, cycle life and safety of the battery. The entire composition of the battery consists of a positive electrode sheet, a negative electrode sheet and a separator. When assembling, a separator is placed between adjacent positive and negative electrode sheets. When detecting the positive and negative poles of the battery electrode sheets, a resistivity meter is generally used for detection.

[0003] However, currently when detecting the battery electrode sheets through a resistivity meter, the detection is generally carried out on the electrode sheets by the resistivity meter. During detection, it is necessary to manually place the battery electrode sheet on the table and drive the detection needle to detect the electrode sheet through a cylinder. It is not only difficult to achieve automatic feeding, but also the position of each electrode sheet placed is not fixed each time. The detection needle is difficult to move horizontally, and the detected electrode sheet is not clamped. It is easy to shift when blowing air, and it is necessary to adjust the placement position of the electrode sheet multiple times, resulting in low detection efficiency; before the detection needle contacts the electrode sheet, the diaphragm on the electrode sheet is blown up by a nozzle to open the detection position. Since the flexibility of the separator is good, when the nozzle blows up the separator, the separator is not opened significantly and is easy to swing, affecting the contact between the detection needle and the detection point, which is not conducive to the detection of the electrode sheet; after detection, only the resistance shown by the resistivity meter is used to judge whether it is a positive electrode sheet or a negative electrode sheet, and it is not marked after detection, which is easy to cause the forgetting of the information of the detected electrode sheet and requires re-detection, wasting time. Summary of the Invention

[0004] Aiming at the problems in the prior art, the present invention provides a device for detecting battery positive and negative electrode sheets.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: A device for detecting the positive and negative electrode plates of a battery, comprising a fixing frame, a detection mechanism and a conveying mechanism mounted on the fixing frame. An electrode plate is placed on the conveying mechanism, and a clamping mechanism is mounted on the conveying mechanism, and a film lifting mechanism is mounted on the clamping mechanism; The clamping mechanism includes two movable grooves and a pushing frame. Two movable grooves are oppositely formed on the conveying mechanism, and two pushing frames are slidably connected at both of the two movable grooves; The film lifting mechanism includes two support frames. The side walls of the two pushing frames are both welded with support frames. Four air cylinders No. 4 are mounted on the two support frames. The telescopic ends of the four air cylinders No. 4 are fixedly connected with cross bars. Driving shafts are relatively rotatably connected to the two cross bars. Gears are key-connected to the four driving shafts. Driving rods are fixedly connected to the relative ends of the two groups of driving shafts. Lever plates are fixedly connected to the ends of the four driving rods. Top frames are mounted on the two cross bars. Air cylinders No. 3 are mounted on the bottoms of the two top frames. The telescopic end of the air cylinder No. 3 is fixedly connected with a connecting block. Two toothed plates are relatively slidably connected to the cross bar. The toothed plates are engaged with the gears. Connecting rods are rotatably connected between the two toothed plates on the same side and the connecting block.

[0006] Specifically, the film lifting mechanism further includes a support base and a roller. Two groups of support bases are relatively fixedly connected to the conveying mechanism. Rollers are equidistantly rotatably connected to the two support bases on the same side.

[0007] Specifically, the driving rod is inclined, and the surface of the lever plate at the end of the driving rod is inclined.

[0008] Specifically, the conveying mechanism includes a mounting frame and a connecting plate. The mounting frame is fixedly connected to the fixing frame through two groups of connecting plates. The movable grooves are formed on both sides of the mounting frame. The two groups of support bases are both fixedly connected to the mounting frame. The middle part of the mounting frame is in a U-shaped structure.

[0009] Specifically, the conveying mechanism further includes a roller. A roller is rotatably connected to the mounting frame. A conveyor belt is mounted on the roller. A motor No. 2 is mounted on the side of the mounting frame. The output end of the motor No. 2 is connected to the roller through a coupling.

[0010] Specifically, the clamping mechanism includes a bottom plate. The bottom plate is mounted on the inner side of the mounting frame. A two-way air cylinder is mounted at the center of the surface of the bottom plate. The two telescopic ends of the two-way air cylinder are fixedly connected to the pushing frames with an L-shaped structure on the side. Moving bars are fixedly connected to the tops of the two pushing frames. The moving bars are slidably connected to the mounting frame. Pushing plates are fixedly connected to the relative ends of the two moving bars.

[0011] Specifically, the clamping mechanism further includes two groups of guide rods. A plurality of guide rods are equidistantly and slidably connected to both of the push plates. Clamping plates are fixedly connected to the ends of the two groups of guide rods. A plurality of first springs located on the guide rods are clamped between the clamping plates and the push plates.

[0012] Specifically, the detection mechanism includes a housing. The housing is mounted on the side wall of the fixed frame. Two parallel slide rails are installed inside the housing. A slide seat is slidably connected to the two slide rails. Two driving wheels are rotatably connected inside the housing. A belt is installed between the two driving wheels. The belt is fixedly connected to the slide seat. A motor is installed on the housing. The output end of the motor is fixedly connected to one of the driving wheels. A slide frame with an L-shaped side is fixedly connected to the slide seat. A first cylinder and a second cylinder are installed on the slide frame. A detection box is installed at the bottom of the first cylinder. A detection needle is provided at the bottom of the detection box. A nozzle is installed at the bottom of the second cylinder.

[0013] Specifically, a marking mechanism is installed on the fixed frame. The marking mechanism includes a fixed frame. The fixed frame is installed on the fixed frame. Two fifth cylinders are installed on the fixed frame. Both of the two fifth cylinders penetrate through the bottom of the fixed frame. A limiting frame is fixedly connected to the bottom of the fixed frame. Two pressing rods located at the bottom of the fifth cylinders are relatively slidably connected to the limiting frame. A positive marking plate and a negative marking plate are respectively provided at the bottoms of the two pressing rods. Two control switches respectively connected to the two fifth cylinders are installed on the fixed frame.

[0014] Specifically, the marking mechanism further includes second springs. Second springs are clamped between both of the pressing rods and the limiting frame.

[0015] The beneficial effects of the present invention are as follows: (1) For the device for detecting the positive and negative electrode plates of a battery according to the present invention, a conveying mechanism and a detection mechanism are installed on the fixed frame. When detecting the electrode plates of the battery, they are placed on the conveyor belt to achieve automatic feeding. When the electrode plate reaches the bottom of the detection needle, the conveyor belt stops. At this time, the bidirectional cylinder can be started to drive the two moving strips to move relatively, and further drive the two push plates to drive the clamping plates to move relatively to clamp the electrode plate to be detected, quickly level it, which is beneficial to the quick contact detection between the detection needle and the electrode plate. The motor can drive the slider to move on the slide rail to achieve the horizontal movement of the detection needle, which is beneficial to finding the detection position. Then the second cylinder descends and the nozzle blows air to the diaphragm on the electrode plate to quickly blow up the diaphragm, which is convenient for the detection of the detection needle.

[0016] (2) In the device for detecting the positive and negative electrode plates of a battery according to the present invention, two film-lifting mechanisms are installed on the clamping mechanism. When the clamping plate clamps the electrode plate, it will drive the two support frames to move relative to each other by a certain distance. Before detection, the air cylinder four is started to drive the two cross bars to move relative to each other. Since a large gap is blown out between the separator and the electrode plate, as the air cylinder four extends, the two sets of rocker plates are inserted into the gap between the electrode plate and the separator. Then, the air cylinder three is started. At this time, the air cylinder three contracts, so that the two connecting rods simultaneously pull the two toothed plates. After the two toothed plates move relative to each other, they drive the two gears to rotate, and the rotation directions are opposite. At this time, the two driving rods drive the two rocker plates to rotate away from each other, increasing the gap between the separator and the electrode plate, and preventing the separator from swinging at the bottom of the detection needle and affecting the detection.

[0017] (3) In the device for detecting the positive and negative electrode plates of a battery according to the present invention, a marking mechanism is installed on the fixed frame. After the electrode plate is detected as a positive electrode plate or a negative electrode plate, the conveyor belt transports it. When the detected electrode plate is transported to the bottom of the pressing rod, the staff can press the corresponding control switch to press the corresponding pressing rod, so as to realize that the positive electrode marking plate or the negative electrode marking plate leaves a "+" or "-" mark on the separator of the electrode plate, which is beneficial to quickly distinguish whether the electrode plate is a positive electrode plate or a negative electrode plate and avoid repeated detection due to forgetting. Brief Description of the Drawings

[0018] The present invention will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection structure of the outer shell, the sliding frame, the first motor and the first air cylinder of the present invention; Figure 3 It is a schematic diagram of the connection structure of the sliding frame, the sliding seat, the sliding rail and the belt of the present invention; Figure 4 It is a schematic diagram of the connection structure of the first air cylinder, the second air cylinder, the air nozzle, the detection box and the detection needle of the present invention; Figure 5 It is a schematic diagram of the connection structure of the conveyor belt, the electrode plate and the double-acting air cylinder of the present invention; Figure 6 It is a schematic diagram of the connection structure of the double-acting air cylinder, the mounting frame and the movable groove of the present invention; Figure 7 It is a schematic diagram of the connection structure of the double-acting air cylinder, the pushing frame and the moving strip of the present invention; Figure 8 It is a schematic diagram of the connection structure of the pushing plate, the guide rod and the clamping plate of the present invention; Figure 9 It is a schematic diagram of the connection structure of the pushing frame, the moving strip and the support frame of the present invention; Figure 10Schematic diagram of the connection structure of the horizontal bar, toothed plate and gear of the present invention; Figure 11 Schematic diagram of the connection structure of the fixed frame, limit frame and pressure bar of the present invention.

[0020] In the figure: 1, fixed frame; 2, detection mechanism; 201, first motor; 202, sliding frame; 203, first cylinder; 204, second cylinder; 205, outer shell; 206, detection box; 207, detection needle; 208, air nozzle; 209, driving wheel; 210, belt; 211, slide rail; 212, sliding seat; 3, conveying mechanism; 301, mounting frame; 302, second motor; 303, conveyor belt; 304, connecting plate; 305, roller; 4, electrode plate; 5, clamping mechanism; 501, movable groove; 502, pushing frame; 503, bottom plate; 504, double-acting cylinder; 505, pushing plate; 506, guide rod; 507, clamping plate; 508, first spring; 509, moving bar; 6, film-lifting mechanism; 601, top frame; 602, tipping plate; 603, third cylinder; 604, fourth cylinder; 605, horizontal bar; 606, gear; 607, toothed plate; 608, support frame; 609, support seat; 610, roller; 611, driving shaft; 612, driving rod; 613, connecting block; 614, connecting rod; 7, marking mechanism; 701, fixed frame; 702, fifth cylinder; 703, control switch; 704, limit frame; 705, pressure bar; 706, second spring; 707, positive marking plate; 708, negative marking plate. Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0022] As Figures 1 - 11As shown in the figure, a device for detecting the positive and negative electrode plates of a battery according to the present invention includes a fixing frame 1, a detection mechanism 2 installed on the fixing frame 1, and a conveying mechanism 3. An electrode plate 4 is placed on the conveying mechanism 3, and a clamping mechanism 5 is installed on the conveying mechanism 3. A film lifting mechanism 6 is installed on the clamping mechanism 5. The clamping mechanism 5 includes two movable grooves 501 and a pushing frame 502. Two movable grooves 501 are oppositely formed on the conveying mechanism 3, and two pushing frames 502 are slidably connected at the two movable grooves 501. The film lifting mechanism 6 includes two support frames 608. Support frames 608 are welded to the side walls of the two pushing frames 502. A fourth cylinder 604 is installed on each of the two support frames 608. The telescopic ends of the two fourth cylinders 604 are fixedly connected with a cross bar 605. Driving shafts 611 are relatively rotatably connected to the two cross bars 605. A gear 606 is key-connected to each of the four driving shafts 611. Driving rods 612 are fixedly connected to the relative ends of the two groups of driving shafts 611. A rocker 602 is fixedly connected to the end of each of the four driving rods 612. A top frame 601 is installed on each of the two cross bars 605. A third cylinder 603 is installed at the bottom of each of the two top frames 601. The telescopic end of the third cylinder 603 is fixedly connected with a connecting block 613. Two toothed plates 607 are relatively slidably connected to the cross bar 605. The toothed plate 607 meshes with the gear 606. A connecting rod 614 is rotatably connected between the two toothed plates 607 on the same side and the connecting block 613. The film lifting mechanism 6 further includes a support base 609 and a roller 610. Two groups of support bases 609 are relatively fixedly connected to the conveying mechanism 3. Rollers 610 are equidistantly rotatably connected to the two support bases 609 on the same side. The driving rod 612 is inclined, and the surface of the rocker 602 at the end of the driving rod 612 is inclined.When the two push frames 502 are driven by the bi-directional cylinder 504 to move relative to each other, the components on the two support frames 608 also move relative to each other. However, at this time, the two sets of seesaws 602 have not yet been inserted into the gap between the electrode sheet 4 and the separator. At this time, the air nozzle 208 is still in the blowing state. Then, the two cylinders four 604 are started to make the telescopic ends of the two cylinders four 604 extend. Then, the two cross bars 605 move relative to each other, and the two sets of seesaws 602 are gradually inserted into the analysis between the two separators and the electrode sheet 4. After being completely inserted, the two cylinders three 603 are contracted to drive the two connecting blocks 613 to move away from each other. Since the connecting rods 614 are rotatably connected to the connecting blocks 613 and the toothed plates 607 respectively, when the cylinder three 603 pulls the connecting rods 614, the two connecting rods 614 slide relative to each other. And because the two toothed plates 607 are engaged with the gears 606 on the two drive shafts 611, when the two toothed plates 607 move relative to each other, the two gears 606 will rotate away from each other, further realizing the reverse rotation of the drive shafts 611, and the two drive rods 612 in the same group move away from each other. Finally, the seesaw 602 greatly lifts the two separators, which is beneficial to the exposure of the detection points on the electrode sheet 4, facilitating the contact detection between the detection needle 207 and the contact. After the detection is completed, the cylinder three 603 extends, and the two connecting rods 614 push the toothed plates 607 to move away from each other, thereby realizing the reset of the seesaw 602. The cylinder four 604 is contracted to pull the seesaw 602 out of the gap, without affecting the transportation of the electrode sheet 4 by the conveyor belt 303.;

[0023] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown in the figure, the conveying mechanism 3 includes a mounting frame 301 and a connecting plate 304. The mounting frame 301 is fixedly connected to the fixed frame 1 through two groups of connecting plates 304. The movable grooves 501 are opened on both sides of the mounting frame 301. Two groups of support seats 609 are fixedly connected to the mounting frame 301. The middle part of the mounting frame 301 is in a U-shaped structure. The conveying mechanism 3 further includes a roller 305. The roller 305 is rotatably connected to the mounting frame 301. A conveyor belt 303 is installed on the roller 305. A second motor 302 is installed on the side of the mounting frame 301. The output end of the second motor 302 is connected to the roller 305 through a coupling. The clamping mechanism 5 includes a bottom plate 503. The bottom plate 503 is installed inside the mounting frame 301. A double-acting cylinder 504 is installed at the center of the surface of the bottom plate 503. Both telescopic ends of the double-acting cylinder 504 are fixedly connected to a push frame 502 with an L-shaped side. At the top of both push frames 502, a moving strip 509 is fixedly connected. The moving strip 509 is slidably connected to the mounting frame 301. At the opposite ends of both moving strips 509, a push plate 505 is fixedly connected. The clamping mechanism 5 further includes two groups of guide rods 506. A plurality of guide rods 506 are slidably connected to both push plates 505 at equal intervals. At the ends of both groups of guide rods 506, a clamping plate 507 is fixedly connected. A plurality of first springs 508 located on the guide rods 506 are clamped between the clamping plate 507 and the push plate 505. The detection mechanism 2 includes a housing 205. The housing 205 is installed on the side wall of the fixed frame 1. Two parallel slide rails 211 are installed inside the housing 205. A slide block 212 is slidably connected to the two slide rails 211. Two driving wheels 209 are rotatably connected inside the housing 205. A belt 210 is installed between the two driving wheels 209. The belt 210 is fixedly connected to the slide block 212. A first motor 201 is installed on the housing 205. The output end of the first motor 201 is fixedly connected to one of the driving wheels 209. A slide frame 202 with an L-shaped side is fixedly connected to the slide block 212. A first cylinder 203 and a second cylinder 204 are installed on the slide frame 202. A detection box 206 is installed at the bottom of the first cylinder 203. A detection needle 207 is provided at the bottom of the detection box 206. A nozzle 208 is installed at the bottom of the second cylinder 204.When detecting whether the electrode sheet 4 is a positive electrode sheet or a negative electrode sheet, turn on the second motor 302 to drive a roller 305 to rotate. When installing the roller 305, install two of them, and install the conveyor belt 303 on the roller 305. After starting the second motor 302, the conveyor belt 303 rotates, and the electrode sheet 4 can be placed on the conveyor belt 303 to achieve automatic conveying. When the electrode sheet 4 is conveyed to the bottom of the detection needle 207, the second motor 302 can stop. After stopping the conveyor belt 303, the double-acting cylinder 504 located on the bottom plate 503 can be started. After the two double-acting cylinders 504 contract, they drive the two push frames 502 to move relatively. At this time, the moving strips 509 at the ends of the two push frames 502 are also driven to move relatively, further realizing the clamping of the electrode sheet 4 by the two clamping plates 507, achieving the rapid leveling of the electrode sheet 4, and the electrode sheet 4 will not shift when the air nozzle 208 blows air. And the clamping plate 507 is provided with a guide rod 506 and a first spring 508. The guide rod 506 can slide on the push plate 505, and the first spring 508 is stressed, realizing the leveling and clamping of electrode sheets 4 with different widths. After clamping, the second cylinder 204 can be started to lower the air nozzle 208 to blow up the diaphragm on the electrode sheet 4, exposing the detection position. Further, the first cylinder 203 is started to lower the detection box 206, and further the detection needle 207 contacts the detection point on the electrode sheet 4. The resistance change can be observed on the resistance meter. If the resistance is large, it is a positive electrode sheet, and vice versa. If the detection needle 207 and the detection point on the electrode sheet 4 do not correspond in the horizontal position, start the first motor 201 to drive the belt 210 to rotate, and further the slide seat 212 can be moved on the slide rail 211, thereby adjusting the position of the carriage 202, which is beneficial to adjusting the position of the detection needle 207.;

[0024] Specifically, such as Figure 1 and Figure 11As shown, a marking mechanism 7 is installed on the fixing frame 1. The marking mechanism 7 includes a fixing frame 701 which is installed on the fixing frame 1. Two cylinders five 702 are installed on the fixing frame 701. Both of the two cylinders five 702 penetrate through the bottom of the fixing frame 701. A limiting frame 704 is fixedly connected to the bottom of the fixing frame 701. Two pressure rods 705 located at the bottom of the cylinders five 702 are slidably connected to the limiting frame 704 in a relative manner. A positive electrode plate 707 and a negative electrode plate 708 are respectively provided at the bottoms of the two pressure rods 705. Two control switches 703 respectively connected between the two cylinders five 702 are installed on the fixing frame 701. The marking mechanism 7 further includes a spring two 706. A spring two 706 is clamped between each of the two pressure rods 705 and the limiting frame 704. The detected electrode plate 4 will be conveyed to the bottom of the fixing frame 701 by the conveyor belt 303. At this time, the motor two 302 will also stop rotating. When the detected electrode plate 4 is at the bottoms of the two pressure rods 705, at this time, the staff knows whether the electrode plate 4 is a positive electrode plate or a negative electrode plate, and then presses the corresponding control switch 703 to control the corresponding cylinder five 702 to extend, that is, to select which pressure rod 705 will descend. If the electrode plate 4 is a positive electrode plate, the pressure rod 705 of the positive electrode plate 707 is controlled to descend. If the electrode plate 4 is a negative electrode plate, then the other cylinder five 702 is controlled to descend. No matter which cylinder five 702 descends, it will squeeze the corresponding pressure rod 705, and the spring two 706 will contract. Further, the positive electrode plate 707 or the negative electrode plate 708 at the bottom of the pressure rod 705 will leave an imprint on the diaphragm of the electrode plate 4, avoiding forgetting the detected electrode plate 4, which is beneficial for distinction. Moreover, only the positive electrode plate 707 and the negative electrode plate 708 need to apply printing ink or coating within the specified time. After detection, the motor two 302 starts, and the conveyor belt 303 continues to feed materials.

[0025] When the present invention is in use, first, when detecting whether the electrode sheet 4 is a positive electrode sheet or a negative electrode sheet, the second motor 302 is turned on to drive a roller 305 to rotate. When installing the roller 305, two rollers are installed, and the conveyor belt 303 is installed on the roller 305. After starting the second motor 302, the conveyor belt 303 rotates, and the electrode sheet 4 can be placed on the conveyor belt 303 to achieve automatic conveying. When the electrode sheet 4 is conveyed to the bottom of the detection needle 207, the second motor 302 can stop. After stopping the conveyor belt 303, the double-acting cylinder 504 located on the bottom plate 503 can be started. After the two double-acting cylinders 504 contract, they drive the two push frames 502 to move relatively. At this time, the moving strips 509 at the ends of the two push frames 502 are also driven to move relatively, further enabling the two clamping plates 507 to clamp the electrode sheet 4, achieving quick leveling of the electrode sheet 4. Moreover, when the air nozzle 208 blows air, the electrode sheet 4 will not shift. The clamping plate 507 is provided with a guide rod 506 and a first spring 508. The guide rod 506 can slide on the push plate 505, and the first spring 508 is stressed, enabling the electrode sheet 4 with different widths to be leveled and clamped. After clamping, the second cylinder 204 can be started to lower the air nozzle 208 to blow up the diaphragm on the electrode sheet 4, exposing the detection position. Further, the first cylinder 203 is started to lower the detection box 206. Further, the detection needle 207 contacts the detection point on the electrode sheet 4, and the change in resistance can be observed on the resistance meter. If the resistance is large, it is a positive electrode sheet; otherwise, it is a negative electrode sheet. If the detection needle 207 does not correspond to the detection point on the electrode sheet 4 in the horizontal position, the first motor 201 is started to drive the belt 210 to rotate. Further, the slide seat 212 can be moved on the slide rail 211, thereby adjusting the position of the slide frame 202, which is conducive to adjusting the position of the detection needle 207; Then, when the double-acting cylinder 504 drives the two push frames 502 to move relative to each other, the components on the two support frames 608 also move relative to each other. However, at this time, the two groups of toggle plates 602 have not been inserted into the gap between the electrode plate 4 and the separator. At this time, the air nozzle 208 is still in the blowing state. Then, two cylinders four 604 are started to make the telescopic ends of the two cylinders four 604 extend. Then, the two cross bars 605 move relative to each other, and the two groups of toggle plates 602 gradually insert into the analysis between the two separators and the electrode plate 4. After being completely inserted, the two cylinders three 603 are contracted to drive the two connecting blocks 613 to move away from each other. Since the connecting rod 614 is rotatably connected to the connecting block 613 and the toothed plate 607, when the cylinder three 603 pulls the connecting rod 614, the two connecting rods 614 slide relative to each other. And because the two toothed plates 607 are engaged with the gears 606 on the two drive shafts 611, when the two toothed plates 607 move relative to each other, the two gears 606 will rotate away from each other, further realizing the rotation of the drive shafts 611 away from each other, and the two drive rods 612 in the same group move away from each other. Finally, the toggle plate 602 greatly lifts the two separators, facilitating the exposure of the detection points on the electrode plate 4, facilitating the contact detection between the detection needle 207 and the contact. After the detection is completed, the cylinder three 603 extends, and the two connecting rods 614 push the toothed plates 607 to move away from each other, thereby realizing the reset of the toggle plate 602. The cylinder four 604 is contracted to withdraw the toggle plate 602 from the gap, which will not affect the transportation of the electrode plate 4 by the conveyor belt 303; Finally, the detected electrode plate 4 will be transported to the bottom of the fixed frame 701 by the conveyor belt 303. At this time, the motor two 302 will also stop rotating. When the detected electrode plate 4 is at the bottom of the two pressure rods 705, at this time, the staff knows whether the electrode plate 4 is a positive electrode plate or a negative electrode plate. Then, the corresponding control switch 703 is pressed to control the corresponding cylinder five 702 to extend, that is, to select which pressure rod 705 will descend. If the electrode plate 4 is a positive electrode plate, the pressure rod 705 of the positive electrode label plate 707 is controlled to descend. If the electrode plate 4 is a negative electrode plate, then the other cylinder five 702 is controlled to descend. No matter which cylinder five 702 descends, it will squeeze the corresponding pressure rod 705, and the spring two 706 contracts. Further, the positive electrode label plate 707 or the negative electrode label plate 708 at the bottom of the pressure rod 705 will leave an imprint on the separator of the electrode plate 4, avoiding forgetting the detected electrode plate 4, which is conducive to identification. And the positive electrode label plate 707 and the negative electrode label plate 708 only need to apply stamp pad ink or paint within the specified time. After the detection, the motor two 302 is started, and the conveyor belt 303 continues to feed materials.

[0026] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0027] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting the positive and negative electrode plates of a battery, characterized in that: It includes a fixing frame (1), a detection mechanism (2) installed on the fixing frame (1), and a conveying mechanism (3). An electrode sheet (4) is placed on the conveying mechanism (3). A clamping mechanism (5) is installed on the conveying mechanism (3), and a film-lifting mechanism (6) is installed on the clamping mechanism (5). The clamping mechanism (5) includes two movable slots (501) and a pushing frame (502). Two movable slots (501) are oppositely formed on the conveying mechanism (3), and two pushing frames (502) are slidably connected to each of the two movable slots (501). The film-lifting mechanism (6) includes two support frames (608). The side walls of the two pushing frames (502) are welded with support frames (608). Two air cylinders four (604) are installed on the two support frames (608). The telescopic ends of the two air cylinders four (604) are fixedly connected with cross bars (605). Driving shafts (611) are relatively rotatably connected to the two cross bars (605). Four gears (606) are key-connected to the four driving shafts (611). Driving rods (612) are fixedly connected to the relative ends of the two groups of driving shafts (611). The ends of the four driving rods (612) are fixedly connected with toggle plates (602). Two top frames (601) are installed on the two cross bars (605). Two air cylinders three (603) are installed at the bottoms of the two top frames (601). The telescopic end of the air cylinder three (603) is fixedly connected with a connecting block (613). Two toothed plates (607) are relatively slidably connected to the cross bar (605). The toothed plates (607) are engaged with the gears (606). Connecting rods (614) are rotatably connected between the two toothed plates (607) on the same side and the connecting block (613).

2. The device for detecting the positive and negative electrode plates of a battery according to claim 1, characterized in that: The film-lifting mechanism (6) further includes a support base (609) and a roller (610). Two groups of support bases (609) are relatively fixedly connected to the conveying mechanism (3). The same-side two support bases (609) are equidistantly rotatably connected with rollers (610).

3. The device for detecting the positive and negative electrode plates of a battery according to claim 1, wherein: The driving rod (612) is inclined, and the surface of the toggle plate (602) at the end of the driving rod (612) is inclined.

4. The device for detecting the positive and negative electrode plates of a battery according to claim 2, characterized in that: The conveying mechanism (3) includes an installation frame (301) and a connecting plate (304). The fixing frame (1) is fixedly connected with the installation frame (301) through two groups of connecting plates (304). The movable slots (501) are formed on both sides of the installation frame (301). The two groups of support bases (609) are fixedly connected to the installation frame (301). The middle part of the installation frame (301) is in a U-shaped structure.

5. The device for detecting the positive and negative electrode plates of a battery according to claim 4, wherein: The conveying mechanism (3) further includes a roller column (305). The roller column (305) is rotatably connected to the installation frame (301). A conveyor belt (303) is installed on the roller column (305). A motor two (302) is installed on the side of the installation frame (301). The output end of the motor two (302) is connected to the roller column (305) through a coupling.

6. The device for detecting the positive and negative electrode plates of a battery according to claim 4, characterized in that: The clamping mechanism (5) includes a bottom plate (503). The bottom plate (503) is installed inside the mounting frame (301). A bidirectional cylinder (504) is installed at the center of the surface of the bottom plate (503). Both telescopic ends of the bidirectional cylinder (504) are fixedly connected to a push frame (502) with an L-shaped side. At the top of both push frames (502), a moving bar (509) is fixedly connected. The moving bar (509) is slidably connected to the mounting frame (301). At the relative ends of both moving bars (509), a push plate (505) is fixedly connected.

7. The device for detecting the positive and negative electrode plates of a battery according to claim 6, characterized in that: The clamping mechanism (5) further includes two groups of guide rods (506). A plurality of guide rods (506) are slidably connected to both push plates (505) at equal intervals. At the ends of both groups of guide rods (506), a clamping plate (507) is fixedly connected. Between the clamping plate (507) and the push plate (505), a plurality of first springs (508) located on the guide rods (506) are clamped.

8. The device for detecting the positive and negative electrode plates of a battery according to claim 1, characterized in that: The detection mechanism (2) includes a housing (205). The housing (205) is installed on the side wall of the fixed frame (1). Inside the housing (205), two parallel slide rails (211) are installed. A slide seat (212) is slidably connected to the two slide rails (211). Inside the housing (205), two driving wheels (209) are rotatably connected. A belt (210) is installed between the two driving wheels (209). The belt (210) is fixedly connected to the slide seat (212). A motor (201) is installed on the housing (205). The output end of the motor (201) is fixedly connected to one of the driving wheels (209). A slide frame (202) with an L-shaped side is fixedly connected to the slide seat (212). A first cylinder (203) and a second cylinder (204) are installed on the slide frame (202). A detection box (206) is installed at the bottom of the first cylinder (203). A detection needle (207) is provided at the bottom of the detection box (206). A nozzle (208) is installed at the bottom of the second cylinder (204).

9. The device for detecting the positive and negative electrode plates of a battery according to claim 1, wherein: A marking mechanism (7) is installed on the fixed frame (1). The marking mechanism (7) includes a fixed frame (701). The fixed frame (701) is installed on the fixed frame (1). Two fifth cylinders (702) are installed on the fixed frame (701). Both fifth cylinders (702) penetrate through the bottom of the fixed frame (701). A limit frame (704) is fixedly connected to the bottom of the fixed frame (701). Two pressure bars (705) located at the bottom of the fifth cylinders (702) are slidably connected to each other on the limit frame (704). A positive marking plate (707) and a negative marking plate (708) are respectively provided at the bottoms of the two pressure bars (705). Two control switches (703) respectively connected to the two fifth cylinders (702) are installed on the fixed frame (701).

10. The device for detecting the positive and negative electrode plates of a battery according to claim 9, wherein: The marking mechanism (7) further includes a second spring (706), and a second spring (706) is clamped between each of the two pressure rods (705) and the limit frame (704).

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