An adjustable cutting tool assembly for a single cell separator

Abstract

The present invention relates to the technical field of battery separator processing, and specifically relates to an adjustable cutting tool assembly for a single battery separator, which includes a conveying roller, a support base, and a cutting tool. The cutting tool includes a fixed cutting tool and a first movable tool slidably mounted on the fixed cutting tool; the fixed cutting tool includes a moving plate, and a first knife plate and a second knife plate fixedly installed below the moving plate. The moving plate is slidably mounted on the support base. One end of the first knife plate and the second knife plate are connected and perpendicular to each other. The first movable tool is parallel to the first knife plate, and the first movable tool slides along the length direction of the second knife plate to change the distance from the first knife plate; the moving plate is connected to the working end of a stamping drive assembly; the cutting tool further includes a second movable tool, and the second movable tool slides along the length direction of the first knife plate to change the distance from the second knife plate. This technical solution realizes the cutting and forming of battery separators of different sizes through the first knife plate, the second knife plate, and the first movable tool.

Description

Technical Field

[0001] The present invention relates to the technical field of battery separator processing, and specifically relates to an adjustable cutting tool assembly for a single battery separator. Background Art

[0002] The function of a battery separator is to prevent the positive and negative plates from contacting each other and causing a short circuit. Since it is a porous body, the electrolyte can smoothly pass through the separator to ensure that the chemical reaction of the plates proceeds normally. During the production process of the battery separator, the separator needs to be cut into the required size after drying.

[0003] The existing cutting method usually uses a grinding wheel cutting machine to cut the battery separator. However, a major drawback of using a grinding wheel cutting machine to cut the battery separator is that it is difficult for the grinding wheel cutting machine to cut a straight line. Another cutting method is to punch the battery separator with a cutting blade plate with a determined cutting shape to form a single cut. However, this cutting method requires manufacturing a variety of cutting blade plates with different shapes to meet the cutting requirements of battery separators of different sizes. Moreover, when cutting separators of different sizes, it is necessary to adjust the conveying speed of the conveying device. Otherwise, the interval between the cut separators will be relatively large, the waste will increase, and the production loss will be increased. Summary of the Invention

[0004] In view of the above problems, it is necessary to provide an adjustable cutting tool assembly for a single battery separator in view of the problems of the existing technology.

[0005] To solve the problems of the existing technology, the technical solution adopted by the present invention is as follows:

[0006] An adjustable cutting tool assembly for a single battery separator includes two conveying rollers. The conveying rollers clamp the battery separator from above and below and convey it to a support base on one side. Above the support base, there is a cutting tool for cutting the battery separator. The cutting tool includes a fixed cutting tool and a first movable tool slidably mounted on the fixed cutting tool. The fixed cutting tool includes a moving plate, and a first blade plate and a second blade plate fixedly installed below the moving plate. The moving plate is slidably mounted on the support base. One end of the first blade plate and the second blade plate are joined and perpendicular to each other. The first blade plate extends along the axis direction of the conveying rollers. The first movable tool is parallel to the first blade plate, and the first movable tool slides along the length direction of the second blade plate to change the distance from the first blade plate. The moving plate is connected to the working end of a stamping drive assembly. The stamping drive assembly drives the first blade plate, the second blade plate, and the first movable tool on the moving plate to reciprocate vertically to cut the battery separator on the support base. The cutting tool further includes a second movable tool. The second movable tool slides along the length direction of the first blade plate to change the distance from the second blade plate. The second movable tool is used to cut one side of the battery separator parallel to the second blade plate.

[0007] Preferably, the movable plate is provided with mounting strips on both sides parallel to the second knife plate; the first movable tool is fixedly mounted on the second movable seat, and ears are provided at both ends of the second movable seat, and the ears are slidably mounted on the mounting strips; the mounting strip is provided with a first positioning unit for locking the position of the ears.

[0008] Preferably, the stamping drive assembly includes a vertical plate arranged on the second movable seat, a second waist-shaped hole is arranged on the vertical plate, and tooth grooves are arranged on both sides of the second waist-shaped hole in the vertical direction; an incomplete gear is inserted in the second waist-shaped hole, and when the locking teeth of the incomplete gear are engaged with the tooth grooves, the incomplete gear drives the second movable seat and the fixed cutting tool to move in the vertical direction; a driven gear is coaxially installed on one side of the incomplete gear, and the driven gear is connected to the driving wheel through a transmission belt, and the driving wheel is connected to the second rotary driver, and the second rotary driver is fixedly installed on one side of the support base.

[0009] Preferably, there are several driving wheels, the axes of the driving wheels are on the same straight line, the axes of the driving wheels are parallel to the length direction of the second blade, the driving wheels are evenly spaced along the axis direction, and the diameters of the driving wheels gradually decrease from the end close to the first blade to the end far away from the first blade.

[0010] Preferably, the incomplete gear and the driven gear are inserted into a mounting bar, and the mounting bar is slidably mounted on a horizontal slide bar arranged on a supporting base; an elastic arm is fixedly mounted on the mounting bar, a tensioning wheel is arranged at one end of the elastic arm, and a transmission belt is sleeved on the tensioning wheel.

[0011] Preferably, the conveying rollers are respectively mounted on a fixed seat and a sliding seat, and the fixed seat and the sliding seat are slidably mounted on a mounting bracket, the position of the fixed seat is fixed, and the sliding seat is located above the fixed seat and moves in a vertical direction; meshing gears are coaxially arranged at both ends of the conveying roller, and when the meshing gears are meshed and connected, the conveying rollers clamp the battery separators and synchronously rotate in the opposite direction to convey the battery separators to one side of the fixed cutting tool; the conveying roller located on the fixed seat is transmission-connected to the working end of the first rotating driver, and the first rotating driver is fixedly mounted on one side of the fixed seat.

[0012] Preferably, an adjustment seat is provided on the side of the mounting bracket facing the fixed cutting tool, and a horizontal guide rod is provided on the side of the adjusting seat away from the fixed cutting tool, the guide rod is inserted into the connecting plate provided on the mounting bracket, and vertically extending first waist-shaped holes are provided on both sides of the adjusting seat; one side of the articulated arm is hingedly connected to the fixed seat and the sliding seat, and the other end of the articulated arm on the fixed seat and the articulated arm on the sliding seat are coaxially inserted on the shaft rod, and the shaft rod is slidably installed in the first waist-shaped hole of the adjusting seat, and the adjustment seat moves toward the fixed seat to drive the sliding seat to move upward.

[0013] Preferably, a cam block is provided on one side of the adjusting seat facing the fixed cutting tool, and the outer side of the cam block has an inclined surface that slopes downward toward the lower side of the fixed cutting tool; a side top plate is provided on one side of the moving plate of the fixed cutting tool facing the adjusting seat, and the top end of the side top plate fits the inclined surface of the cam block. When the moving plate moves downward, it pushes the adjusting seat closer to the fixed seat.

[0014] Preferably, a pressing plate is provided below the moving plate, and at least two guide rods are provided on the upper side of the pressing plate. The guide rods are inserted into the moving plate, and springs are sleeved on the guide rods. The springs elastically connect the moving plate and the pressing plate, and a limit ring is provided at the top end of the guide rods.

[0015] Preferably, the second movable tool is installed on a sliding mounting seat, and the sliding mounting seat is slidably installed at a hinge arm provided on a sliding seat. The hinge arm extends along the length direction parallel to the first knife plate; a second positioning unit is provided on the sliding mounting seat, and the second positioning unit is used to lock the position of the sliding mounting seat on the hinge arm.

[0016] The beneficial effects of the present invention compared with the prior art are as follows:

[0017] First, the two sides of the tool of the present invention are composed of a vertically distributed first knife plate and a second knife plate. The first movable tool can change its position on the second knife plate to change the distance from the first knife plate, so as to adjust the width of the cut battery separator. The first knife plate, the second knife plate and the first movable tool cut three sides. When the battery separator moves, the second movable tool cuts the remaining side. The second movable tool can move along the length direction of the first knife plate to adjust the distance from the second knife plate, so as to cooperate with the first knife plate, the second knife plate and the first movable tool to cut battery separators of different sizes into shape, improving the applicable range of the equipment.

[0018] Second, the stamping drive assembly of the present invention realizes the downward punching and upward reset of the cutting tool through the rotation of the incomplete gear in the second waist-shaped hole on the vertical plate in cooperation with the tooth groove. One end of the incomplete gear is coaxially provided with a driven gear, and the driven gear is connected to a driving wheel through a transmission belt. There are several driving wheels, and the diameters of the driving wheels gradually decrease from the end close to the first knife plate to the end far from the first knife plate. Thus, the closer the first movable tool is to the first knife plate, the larger the diameter of the driving wheel on which the transmission belt is sleeved, and the higher the frequency of the incomplete gear driving the cutting tool to reciprocate. That is, when the width of the cut battery separator is narrower, the stamping drive assembly drives the cutting tool to cut the battery separator at a faster frequency, adaptively reducing the waste of the battery separator and reducing the production loss.

[0019] Third, the present invention can stop the conveying roller from conveying the battery separator when the fixed cutting tool and the first movable tool cut the battery separator and can keep the first rotary driver running normally, avoiding equipment damage caused by repeated start and stop. Brief Description of the Drawings

[0020] Figure 1 is a top view of an adjustable cutting tool assembly for a single cell separator;

[0021] Figure 2 is a sectional view taken along the A-A direction of an adjustable cutting tool assembly for a single cell separator in a non-cutting state; Figure 1 of;

[0022] Figure 3 is a sectional view taken along the A-A direction of an adjustable cutting tool assembly for a single cell separator in a cutting state; Figure 1 of;

[0023] Figure 4 is a perspective view of an adjustable cutting tool assembly for a single cell separator;

[0024] Figure 5 is a side view of an adjustable cutting tool assembly for a single cell separator;

[0025] Figure 6 is Figure 5 a partial enlarged view at B of;

[0026] Figure 7 is a front view of an adjustable cutting tool assembly for a single cell separator with the conveying roller removed;

[0027] Figure 8 is Figure 7 a partial enlarged view at C of;

[0028] Figure 9 is an exploded perspective view of an adjustable cutting tool assembly for a single cell separator with the conveying roller removed Figure One ;

[0029] Figure 10 is an exploded perspective view of an adjustable cutting tool assembly for a single cell separator with the conveying roller removed Figure Two ;

[0030] Figure 11 is a perspective view of the conveying roller of an adjustable cutting tool assembly for a single cell separator Figure One ;

[0031] Figure 12 is a perspective view of the conveying roller of an adjustable cutting tool assembly for a single cell separator Figure Two ;

[0032] Figure 13 is Figure 12 a partial enlarged view at D of;

[0033] The reference numerals in the figure are: 1, conveying roller; 11, fixed seat; 12, sliding seat; 121, hinged arm; 122, shaft rod; 123, installation track; 13, installation bracket; 131, connecting plate; 14, meshing gear; 15, first rotary driver; 16, adjusting seat; 161, guide rod; 162, first waist-shaped hole; 163, inclined ejector block; 2, support base; 21, sliding rod; 3, fixed cutting tool; 31, moving plate; 311, installation side strip; 312, first positioning unit; 313, side top plate; 32, first knife plate; 33, second knife plate; 34, pressing plate; 341, guide rod; 342, spring; 343, limit ring; 4, first movable cutting tool; 41, second moving seat; 411, hanging ear; 5, stamping drive assembly; 51, vertical plate; 511, second waist-shaped hole; 512, tooth groove; 52, incomplete gear; 521, driven gear; 522, installation strip; 523, elastic arm; 524, tension pulley; 53, transmission belt; 54, driving wheel; 541, second rotary driver; 6, second movable cutting tool; 61, sliding installation seat; 611, second positioning unit. Detailed implementation manner

[0034] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0035] Refer to Figures 1 to 13 :

[0036] A single-cell battery separator adjustable cutting tool assembly includes two conveying rollers 1. The conveying rollers 1 clamp the battery separator up and down and convey it to a support base 2 on one side. Above the support base 2, there is a cutting tool for cutting the battery separator. The cutting tool includes a fixed cutting tool 3 and a first movable cutting tool 4 slidably mounted on the fixed cutting tool 3. The fixed cutting tool 3 includes a moving plate 31 and a first knife plate 32 and a second knife plate 33 fixedly installed below the moving plate 31. The moving plate 31 is slidably mounted on the support base 2. One end of the first knife plate 32 and the second knife plate 33 are connected and perpendicular to each other. The first knife plate 32 extends along the axis direction of the conveying roller 1. The first movable cutting tool 4 is parallel to the first knife plate 32, and the first movable cutting tool 4 slides along the length direction of the second knife plate 33 to change the distance from the first knife plate 32. The moving plate 31 is connected to the working end of a stamping drive assembly 5. The stamping drive assembly 5 drives the first knife plate 32, the second knife plate 33 and the first movable cutting tool 4 on the moving plate 31 to reciprocate vertically to cut the battery separator on the support base 2. The cutting tool further includes a second movable cutting tool 6. The second movable cutting tool 6 slides along the length direction of the first knife plate 32 to change the distance from the second knife plate 33. The second movable cutting tool 6 is used to cut one side of the battery separator parallel to the second knife plate 33.

[0037] In the single-cell separator adjustable cutting tool assembly in this application, two conveying rollers 1 are used to evenly convey the cell separator onto the support base 2, and the stamping drive assembly 5 drives the cutting tool to press down on the cell separator for cutting and forming. In this embodiment, the cutting tool consists of the first knife plate 32 and the second knife plate 33 distributed vertically on both sides of the tool. The first knife plate 32 cuts along the width direction of the cell separator, and the second knife plate 33 cuts along the length direction of the cell separator. Specific shapes required for forming the cell separator can be set on the first knife plate 32 and the second knife plate 33. The cutting tool further includes a first movable tool 4 that is adjustable along the length direction of the second knife plate 33. The first movable tool 4 can change its position on the second knife plate 33 to change the distance from the first knife plate 32, thereby adjusting the width of the cut cell separator. After the stamping drive assembly 5 drives the fixed cutting tool 3 to perform stamping and cutting on the cell separator on the support base 2, the first knife plate 32, the second knife plate 33, and the first movable tool 4 cut three sides, and the second movable tool 6 cuts the remaining side when the cell separator moves. The second movable tool 6 can move along the length direction of the first knife plate 32 to adjust the distance from the second knife plate 33, so as to cooperate with the first knife plate 32, the second knife plate 33, and the first movable tool 4 to cut and form cell separators of different sizes, improving the application range of the equipment.

[0038] To solve the problem of how the first movable tool 4 changes the distance from the first knife plate 32, the following features are specifically set:

[0039] Mounting edge strips 311 are provided on both sides of the moving plate 31 parallel to the second knife plate 33; the first movable tool 4 is fixedly installed on the second moving seat 41. Hanging ears 411 are provided at both ends of the second moving seat 41, and the hanging ears 411 are slidably installed on the mounting edge strips 311; first positioning units 312 for locking the positions of the hanging ears 411 are provided on the mounting edge strips 311.

[0040] The movable plate 31 in the present embodiment is provided with a mounting edge strip 311 parallel to the second blade plate 33, and a hanging ear 411 is provided on the second movable seat 41 for fixing the first movable tool 4. The hanging ear 411 is slidably installed on the mounting edge strip 311 so that when the second movable seat 41 moves along the length direction of the second blade plate 33, the first movable tool 4 can change the width position between it and the first blade plate 32 according to the cutting requirements of the battery separator, and the position of the hanging ear 411 on the mounting edge strip 311 is locked by the first positioning unit 312. The first positioning unit 312 in the present embodiment is a plurality of positioning holes arranged on the mounting edge strip 311, and the position of the positioning hole can be determined according to the commonly used battery separator width. The hanging ear 411 is provided with a plug hole, and the staff can lock the first movable tool 4 with a latch by moving the second movable seat 41 to a position where the plug hole on the hanging ear 411 is aligned with the positioning hole on the mounting edge strip 311. The first positioning unit 312 can also be implemented by other clamps or locking mechanisms to ensure that the position of the first movable tool 4 can be fixed.

[0041] In order to solve the problem of how the punching drive assembly 5 drives the cutting tool to reciprocate, the following features are specifically set:

[0042] The stamping drive assembly 5 includes a vertical plate 51 arranged on the second movable seat 41, and a second waist-shaped hole 511 is arranged on the vertical plate 51, and tooth grooves 512 are arranged on both sides of the second waist-shaped hole 511 in the vertical direction; an incomplete gear 52 is inserted into the second waist-shaped hole 511, and when the locking teeth of the incomplete gear 52 are engaged with the tooth grooves 512, the incomplete gear 52 drives the second movable seat 41 and the fixed cutting tool 3 to move in the vertical direction; a driven gear 521 is coaxially installed on one side of the incomplete gear 52, and the driven gear 521 is connected to the driving wheel 54 through a transmission belt 53, and the driving wheel 54 is connected to the second rotation driver 541, and the second rotation driver 541 is fixedly installed on one side of the support base 2.

[0043] The second movable seat 41 in this embodiment is provided with a vertical plate 51 pointing vertically upward. When the incomplete gear 52 located in the second waist-shaped hole 511 on the vertical plate 51 rotates, the latching tooth on the incomplete gear 52 rotates to a state of being engaged with the tooth groove 512 on one side of the second waist-shaped hole 511, and the second movable seat 41 can be driven to move in the vertical direction. When the incomplete gear 52 is engaged and connected with the tooth groove 512 on the other side of the vertical plate 51, it will drive the second movable seat 41 to move in the reverse direction, thereby realizing the downward pressing and punching and upward moving and resetting of the cutting tool. In order to ensure that the fixed cutting tool 3 moves up and down synchronously with the second movable seat 41, the second movable seat 41 can be sleeved on the installation edge strip 311, or a pressure plate can be set between the movable plate 31 and the second movable seat 41, and the second movable seat 41 passes through the bottom of the pressure plate to connect the installation edge strip 311 to ensure that the first knife plate 32, the second knife plate 33 and the first movable tool 4 move synchronously. A driven gear 521 is coaxially arranged at one end of the incomplete gear 52, and the driven gear 521 is connected to the driving wheel 54 through a transmission belt 53. When the second rotation driver 541 drives the driving wheel 54 to rotate, it will drive the incomplete gear 52 and the driven gear 521 to rotate synchronously. The second rotation driver 541 can be a servo motor, etc.

[0044] In order to solve the problem of how to reduce the increase of waste due to the reduction of cutting width, the following features are specifically set:

[0045] There are a plurality of driving wheels 54, the axes of the driving wheels 54 are on the same straight line, the axes of the driving wheels 54 are parallel to the length direction of the second blade 33, the driving wheels 54 are evenly spaced along the axis direction, and the diameters of the driving wheels 54 decrease one by one from the end close to the first blade 32 to the end away from the first blade 32.

[0046] When the first movable cutter 4 approaches the first cutter plate 32, the cutting width decreases. At this time, the conveying rollers 1 maintain the same rotation speed to convey the battery separator, and the stamping drive assembly 5 maintains the same frequency to cut the battery separator, which will result in an increase in the waste between the cut battery separators, and is not conducive to production. In this embodiment, there are several drive wheels 54 for driving the rotation of the incomplete gear 52 of the stamping drive assembly 5. The diameters of the drive wheels 54 gradually decrease from the end close to the first cutter plate 32 to the end far from the first cutter plate 32. When the staff adjusts the position of the first movable cutter 4, the closer the first movable cutter 4 is to the first cutter plate 32, the larger the diameter of the drive wheel 54 on which the transmission belt 53 is sleeved. The second rotary driver 541 drives the drive wheel 54 to rotate one week at the same angular velocity, and the longer the distance that drives the driven gear 521 to rotate, the higher the frequency at which the incomplete gear 52 drives the cutting tool to reciprocate. Through precise calculation, when the width of the cut battery separator is narrower, the stamping drive assembly 5 can drive the cutting tool to cut the battery separator at a faster frequency, adaptively reducing the waste of the battery separator and reducing the production loss. In this embodiment, the axes of the drive wheels 54 are on the same straight line, the axes of the drive wheels 54 are parallel to the length direction of the second cutter plate 33, the drive wheels 54 are equally spaced along the axis direction, and the two sides of the drive wheels 54 can be provided with flanges to prevent the transmission belt 53 from disengaging from the drive wheel 54 on the side during operation.

[0047] To solve the problem of how to ensure the tension of the transmission belt 53 on the drive wheels 54 with different diameters, the following features are specifically set:

[0048] The incomplete gear 52 and the driven gear 521 are inserted on the mounting strip 522, and the mounting strip 522 is slidably mounted on the horizontal slide bar 21 provided on the support base 2; an elastic arm 523 is fixedly mounted on the mounting strip 522, and a tension pulley 524 is provided at one end of the elastic arm 523, and the transmission belt 53 is sleeved on the tension pulley 524.

[0049] In this embodiment, the incomplete gear 52 and the driven gear 521 are inserted on the mounting strip 522, and the mounting strip 522 slides on the slide bar 21 of the support base 2. The movement of the mounting strip 522 can be synchronized with the movement of the first movable cutter 4 to ensure that the incomplete gear 52 is always located inside the second kidney-shaped hole 511 of the vertical plate 51. An elastic arm 523 is provided on one side of the mounting strip 522. The elastic arm 523 has at least two articulated force arms and cooperates with a spring to achieve expansion and contraction. The tension pulley 524 at the top of the elastic arm 523 is located inside the transmission belt 53 to support the transmission belt 53, so that when one end of the transmission belt 53 is sleeved on the drive wheels 54 of different sizes, the transmission belt 53 can maintain tension and ensure the stable rotation of the incomplete gear 52.

[0050] For the purpose of the conveying rollers 1 to convey the battery separator, the following features are specifically set:

[0051] The conveying rollers 1 are respectively installed on the fixed seats 11 and the sliding seats 12. The fixed seats 11 and the sliding seats 12 are slidably installed on the mounting bracket 13. The position of the fixed seat 11 is fixed, and the sliding seat 12 is located above the fixed seat 11 and moves vertically; at both ends of the conveying roller 1, meshing gears 14 are coaxially arranged. When the meshing gears 14 are meshed and connected, the conveying roller 1 clamps the battery separator and rotates synchronously and reversely to convey the battery separator to one side of the fixed cutting tool 3; the conveying roller 1 located on the fixed seat 11 is drivingly connected to the working end of the first rotary driver 15, and the first rotary driver 15 is fixedly installed on one side of the fixed seat 11.

[0052] In this embodiment, the two conveying rollers 1 are respectively installed on the fixed seat 11 and the sliding seat 12. The position of the fixed seat 11 on the mounting bracket 13 is fixed. The battery separator horizontally passes through the upper side of the conveying roller 1 installed on the fixed seat 11. Under the action of gravity, the sliding seat 12 presses down the upper side of the battery separator by the conveying roller 1. At this time, the meshing gears 14 on both sides of the conveying roller 1 are meshed. When the first rotary driver 15 on the fixed seat 11 is started, the meshing of the first rotary driver 15 causes the two conveying rollers 1 to rotate reversely and convey the battery separator to one side of the cutting tool.

[0053] In order to solve the problem of how to stop the conveying roller 1 from conveying the battery separator when the fixed cutting tool 3 cuts, the following features are specifically set:

[0054] On one side of the mounting bracket 13 facing the fixed cutting tool 3, an adjusting seat 16 is provided. On the side of the adjusting seat 16 away from the fixed cutting tool 3, a horizontal guide rod 161 is provided. The guide rod 161 is inserted into the connecting plate 131 provided on the mounting bracket 13. On both sides of the adjusting seat 16, first waist-shaped holes 162 extending vertically are provided; on one side of the fixed seat 11 and the sliding seat 12, one side of the articulated arm 121 is hingedly connected. The other ends of the articulated arms 121 on the fixed seat 11 and the sliding seat 12 are coaxially inserted into the shaft rod 122, and the shaft rod 122 is slidably installed in the first waist-shaped hole 162 of the adjusting seat 16. When the adjusting seat 16 moves towards the fixed seat 11, the sliding seat 12 moves upward.

[0055] On the side of the adjusting seat 16 facing the fixed cutting tool 3, an inclined ejector block 163 is provided. The outer side of the inclined ejector block 163 has an inclined surface that slopes downward towards one side of the fixed cutting tool 3; on the side of the moving plate 31 of the fixed cutting tool 3 facing the adjusting seat 16, a side top plate 313 is provided. The top end of the side top plate 313 fits the inclined surface of the inclined ejector block 163. When the moving plate 31 moves downward, it pushes the adjusting seat 16 closer to the fixed seat 11.

[0056] When the cutting tool cuts the battery separator, the battery separator should stop being conveyed forward. When the stamping drive assembly 5 drives the fixed cutting tool 3 to cut at a relatively high frequency, the rapid start and stop cause greater loss to the first rotary drive 15. In this embodiment, when the stamping drive assembly 5 drives the fixed cutting tool 3 and the first movable tool 4 to move downward to cut the battery separator, the moving plate 31 of the fixed cutting tool 3 moves downward, causing the side top plate 313 to move downward along the inclined surface of the inclined top block 163. The side top plate 313 pushes the inclined top block 163 and the adjustment seat 16, causing the adjustment seat 16 to move toward the fixed seat 11. Since both the fixed seat 11 and the sliding seat 12 are hinged to the hinge arm 121, and the shaft rod 122 connected to one end of the hinge arm 121 is in the first waist-shaped hole 162 of the adjustment seat 16, when the adjustment seat 16 approaches the fixed seat 11, it will drive the hinge arm 121 to rotate. Since the position of the fixed seat 11 is fixed, the hinge arm 121 will drive the sliding seat 12 to move upward, and the shaft rod 122 slides upward in the first waist-shaped hole 162 of the adjustment seat 16. At this time, the conveying roller 1 releases the clamping and conveying of the battery separator. The conveying roller 1 located on the fixed seat 11 can continue to rotate, but it will not convey the battery separator forward. At this time, the fixed cutting tool 3 cuts the battery separator. When the stamping drive assembly 5 drives the fixed cutting tool 3 to move upward and reset, the sliding seat 12 resets under the action of gravity. The reset of the sliding seat 12 drives the adjustment seat 16 to reset, and the conveying roller 1 clamps and conveys the battery separator again, repeating the cutting step. In this embodiment, when the fixed cutting tool 3 and the first movable tool 4 cut the battery separator, the conveying of the battery separator by the conveying roller 1 can be stopped, and the first rotary drive 15 can be kept running normally, avoiding equipment damage caused by repeated start and stop.

[0057] To solve this problem, the following features are specifically set:

[0058] A pressing plate 34 is arranged below the moving plate 31. At least two guide rods 341 are arranged on the upper side of the pressing plate 34. The guide rods 341 are inserted into the moving plate 31. A spring 342 is sleeved on the guide rods 341. The spring 342 elastically connects the moving plate 31 and the pressing plate 34. A limit ring 343 is arranged at the top end of the guide rod 341.

[0059] In this embodiment, a pressing plate 34 is also arranged below the moving plate 31 of the fixed cutting tool 3. The pressing plate 34 can press and fix the battery separator when the fixed cutting tool 3 moves downward, so as to ensure the stability of the battery separator when the fixed cutting tool 3 and the first movable tool 4 cut. The pressing plate 34 contacts the battery separator before the first knife plate 32 and the second knife plate 33. Subsequently, the downward movement of the fixed cutting tool 3 causes the pressing plate 34 to compress the spring 342. When the fixed cutting tool 3 moves upward, the pressing plate 34 releases the pressing on the battery separator after the first knife plate 32 and the second knife plate 33 are separated from the battery separator. Subsequently, the conveying roller 1 resumes the conveying of the battery separator to move the battery separator.

[0060] To solve the problem of how the second movable cutting tool 6 changes the cutting size, the following features are specifically set:

[0061] The second movable cutting tool 6 is installed on a sliding mounting base 61, and the sliding mounting base 61 is slidably mounted at a hinge arm 121 provided on a sliding seat 12. The hinge arm 121 extends along a length direction parallel to the first cutting plate 32; a second positioning unit 611 is provided on the sliding mounting base 61, and the second positioning unit 611 is used to lock the position of the sliding mounting base 61 on the hinge arm 121.

[0062] In this embodiment, the second movable cutting tool 6 is installed on the sliding mounting base 61, and the cutting edge of the second movable cutting tool 6 faces downward to cut the moving battery separator. The sliding mounting base 61 can slide on the mounting track 123 of the sliding seat 12, so as to change the size of the cut battery separator. The sliding mounting base 61 locks its position through the second positioning unit 611. The second positioning unit 611 can have the same structure as the first positioning unit 312. Installing the sliding mounting base 61 on the sliding seat 12 can ensure that when the conveying roller 1 conveys the battery separator, the second movable cutting tool 6 contacts the battery separator to perform cutting.

[0063] Working principle: In this application, the battery separator is evenly conveyed onto the support base 2 by two conveying rollers 1. The stamping drive assembly 5 drives the cutting tool to press down on the battery separator for cutting and forming. The first cutting plate 32 cuts along the width direction of the battery separator, and the second cutting plate 33 cuts along the length direction of the battery separator. The first movable cutting tool 4 can change its position on the second cutting plate 33 to change the distance from the first cutting plate 32, thereby adjusting the width of the cut battery separator. The second movable cutting tool 6 cuts the remaining side when the battery separator is moving. When the staff adjusts the position of the first movable cutting tool 4, the closer the first movable cutting tool 4 is to the first cutting plate 32, the larger the diameter of the driving wheel 54 that the transmission belt 53 is sleeved on. The stamping drive assembly 5 drives the cutting tool to cut the battery separator at a faster frequency. When the stamping drive assembly 5 drives the fixed cutting tool 3 to move downward, the sliding seat 12 moves upward to release the clamping and conveying of the battery separator by the conveying roller 1. The conveying roller 1 located on the fixed seat 11 can continue to rotate, but will not convey the battery separator forward. At this time, the fixed cutting tool 3 cuts the battery separator. When the stamping drive assembly 5 drives the fixed cutting tool 3 to move upward and reset, the sliding seat 12 resets under the action of gravity. The reset of the sliding seat 12 drives the adjusting seat 16 to reset, and the conveying roller 1 clamps and conveys the battery separator again, repeating the cutting step.

[0064] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention shall be subject to the appended claims.

Claims

1. An adjustable cutting tool assembly for a single cell separator, comprising two conveying rollers that sandwich and convey the cell separator to a support base on one side, and a cutting tool for cutting the cell separator is disposed above the support base, characterized in that, The cutting tool comprises a fixed cutting tool and a first movable tool slidably mounted on the fixed cutting tool; The fixed cutting tool comprises a moving plate and a first blade plate and a second blade plate fixedly mounted below the moving plate, the moving plate is slidably mounted on a supporting base, one end of the first blade plate and the second blade plate are connected and perpendicular to each other, and the first blade plate extends along the axis direction of the conveying roller; The first movable tool is parallel to the first blade, and the first movable tool slides along the length direction of the second blade to change the distance from the first blade; The movable plate is connected to the working end of the punching drive assembly, and the punching drive assembly drives the first blade plate, the second blade plate and the first movable cutter on the movable plate to reciprocate in the vertical direction to cut the battery separator on the supporting base; The cutting tool also includes a second movable tool, which slides along the length direction of the first blade to change the distance with the second blade, and the second movable tool is used to cut the side of the battery separator parallel to the second blade; The punching drive assembly includes a plurality of drive wheels, the drive wheels have a plurality of axes on the same straight line, the axes of the drive wheels are parallel to the length direction of the second blade, the drive wheels are evenly spaced along the axis direction, and the diameters of the drive wheels are gradually reduced from one end close to the first blade to one end away from the first blade; the punching drive assembly drives the cutting tool to cut the battery separator at a faster frequency, thereby adaptively reducing the waste of the battery separator; The conveying roller is respectively mounted on a fixed seat and a sliding seat, and the fixed seat and the sliding seat are slidably mounted on a mounting bracket, the fixed seat is fixed in position, and the sliding seat is located above the fixed seat and moves in a vertical direction; Meshing gears are coaxially arranged at both ends of the conveying roller. When the meshing gears are meshed and connected, the conveying roller clamps the battery separator and rotates in the opposite direction synchronously to convey the battery separator to one side of the fixed cutting tool. The conveying roller located on the fixed seat is drivingly connected to the working end of the first rotary driver, and the first rotary driver is fixedly installed on one side of the fixed seat; An adjustment seat is arranged on one side of the mounting bracket facing the fixed cutting tool, a horizontal guide rod is arranged on one side of the adjustment seat away from the fixed cutting tool, the guide rod is inserted into a connecting plate arranged on the mounting bracket, and first waist-shaped holes extending vertically are arranged on both sides of the adjustment seat; One side of the articulated arm is hingedly connected to the fixed seat and the sliding seat. The other ends of the articulated arm on the fixed seat and the articulated arm on the sliding seat are coaxially inserted on the shaft rod. The shaft rod is slidably installed in the first waist-shaped hole of the adjustment seat. The adjustment seat moves toward the fixed seat to drive the sliding seat to move upward. A slanted top block is arranged on one side of the adjustment seat facing the fixed cutting tool, and the outer side of the slanted top block has a slanted surface inclined downwardly toward one side of the fixed cutting tool; A side top plate is arranged on one side of the movable plate for fixing the cutting tool and facing the adjusting seat, the top end of the side top plate is in contact with the inclined surface of the inclined top block, and the movable plate moves downward to push the adjusting seat close to the fixed seat.

2. The adjustable cutting tool assembly for a single cell separator according to claim 1, wherein, The movable plate is provided with mounting edge strips on both sides parallel to the second blade plate; The first movable cutter is fixedly mounted on the second movable seat, and the two ends of the second movable seat are provided with hanging ears, which are slidably mounted on the mounting edge strip; The mounting edge strip is provided with a first positioning unit for locking the position of the hanging ear.

3. An adjustable cutting tool assembly for a single cell separator according to claim 1, characterized in that, The punching drive assembly includes a vertical plate arranged on the second moving seat, a second waist-shaped hole is arranged on the vertical plate, and tooth grooves are arranged on both sides of the second waist-shaped hole in the vertical direction; An incomplete gear is inserted into the second waist-shaped hole. When the clamping teeth of the incomplete gear are meshed with the tooth grooves, the incomplete gear rotates to drive the second movable seat and the fixed cutting tool to move in the vertical direction. A driven gear is coaxially mounted on one side of the incomplete gear. The driven gear is transmission-connected to the driving wheel through a transmission belt. The driving wheel is transmission-connected to the second rotary driver. The second rotary driver is fixedly mounted on one side of the supporting base.

4. The adjustable cutting tool assembly for a single cell separator according to claim 3, characterized in that, .A single cell separator adjustable cutting tool assembly according to claim, characterized in that the incomplete gear and the driven gear are inserted on the mounting bar, and the mounting bar is slidably mounted on a horizontal slide bar provided on the supporting base; An elastic arm is fixedly mounted on the mounting bar, a tensioning wheel is arranged at one end of the elastic arm, and a transmission belt is sleeved on the tensioning wheel.

5. The adjustable cutting tool assembly for a single cell separator according to claim 1, characterized in that A pressing plate is arranged below the moving plate, and at least two guide rods are arranged on the upper side of the pressing plate. The guide rods are inserted on the moving plate, and springs are sleeved on the guide rods. The springs elastically connect the moving plate and the pressing plate, and a limiting ring is arranged on the top of the guide rods.

6. The adjustable cutting tool assembly for a single cell separator according to claim 1, wherein, The second movable cutter is mounted on the sliding mounting seat, and the sliding mounting seat is slidably mounted on a hinged arm provided on the sliding seat, and the hinged arm extends in a length direction parallel to the length of the first cutter plate; The sliding mounting seat is provided with a second positioning unit, and the second positioning unit is used to lock the position of the sliding mounting seat on the articulated arm.

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