Tab slitting device

Abstract

The utility model relates to a tab slitting device, including transfer mechanism and shearing mechanism, transfer mechanism includes transfer drive component, the shearing mechanism is connected with transfer drive component, the shearing mechanism includes servo drive piece, shaft core and slitting component, one end of shaft core is connected with servo drive piece, and the other end of shaft core is connected with the slitting component. The slitting assembly comprises a fixing base and a blade fixing block installed on the fixing base in a sliding mode, a blade is installed on the blade fixing block, a containing groove is formed in one side of the blade fixing block, and the protruding block is arranged in the containing groove. The slitting device has the advantages of simple structure, high slitting precision, low maintenance cost and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium battery, specifically, relate to a tab slitting device. BACKGROUND

[0002] The existing tab manufacturing slitting is basically fixed slitting using the pre-designed cutter die size, and the cutter die needs to be disassembled and ground regularly. The maintenance requires a long time and high cost, and will affect the production capacity of the equipment and reduce the production efficiency. In addition, with the continuous development of the lithium battery industry, the variety of tab glue used is increasing, and different battery products will also have different varieties of tab glue. Because the shrinkage rates of different tab glues are different, using fixed cutter die slitting can easily cause the tab to have intermittent size edges, and the precision is low. During the later stage of battery cell manufacturing, it is easy to cause poor battery cell packaging, and even cause battery cell leakage and fire. Therefore, the cutter die cannot meet the current tab slitting needs of the lithium battery industry, and an alternative tab slitting device is urgently needed. SUMMARY

[0003] Therefore, the utility model provides a tab slitting device which has a simple structure, high slitting precision and low maintenance cost.

[0004] The utility model discloses a tab slitting device which has a simple structure, high slitting precision and low maintenance cost.

[0005] A tab slitting device includes a transfer mechanism and a shearing mechanism. The transfer mechanism includes a transfer drive assembly. The shearing mechanism is connected to the transfer drive assembly. The shearing mechanism includes a servo drive, a shaft core, and a slitting assembly. One end of the shaft core is connected to the servo drive. The other end has a protruding lug on its end face. The slitting assembly includes a fixed seat and a blade fixing block slidingly installed on the fixed seat. A blade is installed on the blade fixing block. One side of the blade fixing block is provided with a placing groove. The lug is arranged in the placing groove.

[0006] In the above technical solution, the transfer drive assembly can drive the shearing mechanism to move, so that the shearing mechanism moves to the tab material belt for cutting work. The servo drive can drive the shaft core to rotate. The end face of the shaft core is provided with a lug. The lug is inserted into the placing groove on the blade fixing block. When the shaft core rotates, the lug can drive the blade fixing block to slide up and down on the fixed seat. The servo drive adjusts the rotation angle of the output to control the moving distance of the blade fixing block, thereby controlling the cutting depth of the blade. The precision is higher.

[0007] Further, the shearing mechanism further comprises a connecting plate and a shaft sleeve, the connecting plate is connected with the transfer driving assembly, the shaft sleeve and the servo driving part are respectively installed on two sides of the connecting plate, the shaft core passes through the inside of the shaft sleeve, and the fixing seat is installed on the shaft sleeve.

[0008] In the technical scheme, the transfer driving assembly moves by driving the connecting plate to drive the whole shearing mechanism to move, the shaft sleeve is used for installing the fixing seat, the connecting plate is provided with a hole for the shaft core to pass through at a position corresponding to the shaft sleeve, the shaft core passes through the inside of the shaft sleeve, and the end with the protruding block passes out of the end of the shaft sleeve and is connected with the blade fixing block installed on the fixing seat.

[0009] Further, a supporting rod is installed on one side surface of the connecting plate where the shaft sleeve is installed, an end of the supporting rod is provided with a supporting block, and the supporting block is provided with a cutting groove matched with the blade.

[0010] In the technical scheme, the supporting block is located below the blade, when slitting, the tab material belt is located between the supporting block and the blade, the supporting block is used for providing a supporting surface to facilitate the downward cutting of the blade, and after the downward cutting of the blade, part of the blade enters the cutting groove on the supporting block to ensure complete cutting.

[0011] Further, one side of the shaft sleeve is provided with a detection inductive device.

[0012] In the technical scheme, the detection inductive device is used for inductively scanning the specific position of the tab on the material belt, so that the transfer driving assembly can accurately move the shearing mechanism to a suitable position to ensure the dimensional accuracy of the tab.

[0013] Further, the transfer driving assembly comprises a rotary driving part and a lead screw connected with the output end of the rotary driving part, and the connecting plate is connected with the nut on the lead screw.

[0014] In the technical scheme, the lead screw is connected with the output end of the rotary driving part, rotary motion is converted into linear motion of the nut to drive the linear motion of the connecting plate.

[0015] Further, the transfer mechanism further comprises a base plate, the base plate is provided with a guide rail, a supporting seat is slidingly installed on the guide rail, and the bottom of the connecting plate is connected with the supporting seat.

[0016] In the technical scheme, the connecting plate is connected with the nut on the lead screw, the supporting seat is used for providing support for the connecting plate to avoid the pressure on the lead screw and protect the structure of the lead screw.

[0017] Further, the fixing seat is provided with a vertical sliding rail, a sliding block is slidingly installed on the sliding rail, and the blade fixing block is connected with the sliding block.

[0018] In the technical scheme, the slide rail is arranged along the vertical direction to limit the vertical movement of the slide block and the blade fixing block connected with the slide block.

[0019] Further, the feeding mechanism comprises two guide assemblies, and the guide assemblies comprise guide wheels.

[0020] In the technical scheme, the guide assembly is provided with a guide wheel, and the tab material belt is guided and conveyed by the guide wheel.

[0021] Further, the guide assembly further comprises a vertical plate and a lifting driving element, the vertical plate is arranged on one side of the guide wheel, and the output end of the lifting driving element is connected with a pressing strip, and the pressing strip is located above the vertical plate.

[0022] In the technical scheme, when the guide wheel conveys the tab material belt to a suitable position, the lifting driving element drives the pressing strip to move downward, and the tab material belt is pressed against the top end of the vertical plate, so that subsequent slitting work is facilitated.

[0023] Compared with the prior art, the utility model has the advantages that:

[0024] The end surface of the shaft core is provided with a protrusion, and the side surface of the blade fixing seat is provided with a placing groove for placing the protrusion. Through rotation of the shaft core, the blade fixing seat is driven to move up and down. The shaft core is connected with the servo driving element, and the rotation angle of the shaft core is controlled through the servo driving element to control the cutting depth of the blade. The cutting precision can be effectively ensured. Meanwhile, the rotary motion of the servo driving element is converted into linear motion, so that the driving element for moving the blade fixing seat in the vertical direction is not needed, the overall structure of the device is more compact and simple, the occupied space is reduced, and the traditional mode adopts a cutter die for fixed slitting, and the cutter die needs to be regularly disassembled for maintenance, which costs a lot of time and money. The blade of the blade fixing seat only needs to be replaced, frequent maintenance work is not needed, maintenance cost is effectively reduced, equipment downtime is reduced, and production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0026] Figure 1 It is a perspective view of the tab slitting device of an embodiment.

[0027] Figure 2 It is aFigure 1 A top view of the electrode cutting device.

[0028] Figure 3 This is a schematic diagram of the transfer mechanism.

[0029] Figure 4 This is a schematic diagram of the shearing mechanism.

[0030] Figure 5 for Figure 4 A schematic diagram of the shearing mechanism after the connecting plate is removed.

[0031] Figure 6 This is a schematic diagram of the guide component.

[0032] Figure 7 This is a top view of an embodiment of a tab cutting device in operation.

[0033] Explanation of the reference numerals in the figure:

[0034] 1-Transfer mechanism; 11-Rotary drive component; 12-Lead screw; 121-Nut; 13-Base plate; 131-Guide rail; 132-Support base; 2-Shearing mechanism; 21-Servo drive component; 22-Shaft core; 221-Protrusion; 23-Sliding assembly; 231-Fixed base; 2311-Slide rail; 2312-Slider; 232-Blade fixing block; 2321-Blade; 24-Busset; 25-Connecting plate; 26-Support rod; 261-Support block; 27-Detection sensor; 3-Feeding mechanism; 31-Guide wheel; 32-Upright plate; 33-Lifting drive component; 34-Mounting plate; 341-Support rod; 35-Pressure strip; 36-Column; 4-Coupling; 5-Material strip. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] It should be noted that like reference numerals and letters refer to like items throughout the several views, and once an item is defined in one view, it should not require further defining and explaining in subsequent views.

[0038] The technical solutions in the application will be described below with reference to the drawings.

[0039] Please refer to Figures 1 to 6 The embodiment provides an electrode lug slitting device, which comprises a conveying mechanism 1, a shearing mechanism 2 and a feeding mechanism 3. The shearing mechanism 2 is installed above the conveying mechanism 1. The conveying mechanism 1 comprises a conveying driving assembly. The shearing mechanism 2 is connected with the conveying driving assembly. The feeding mechanism 3 comprises two guide assemblies. Each guide assembly comprises a guide wheel 31. The two guide assemblies are arranged on the front and rear sides of the conveying driving assembly. The shearing mechanism 2 comprises a servo driving piece 21, a shaft core 22 and a slitting assembly 23. One end of the shaft core 22 is connected with the servo driving piece 21. A protruding protrusion 221 is arranged on the end face of the other end of the shaft core 22. The slitting assembly 23 comprises a fixed seat 231 and a blade fixing block 232 which is slidingly installed on the fixed seat 231. A blade 2321 is arranged on the bottom of the blade fixing block 232. A placing groove is arranged on the side face of the blade fixing block 232. The protrusion 221 is arranged in the placing groove.

[0040] The two guide assemblies guide and convey the electrode lug material belt through the guide wheels 31. The conveying driving assembly can drive the shearing mechanism 2 to move linearly, so that the shearing mechanism 2 moves to the electrode lug material belt to perform slitting. The servo driving piece 21 can drive the shaft core 22 to rotate. The end face of the shaft core 22 is provided with the protrusion 221. The protrusion 221 is inserted into the placing groove on the blade fixing block 232. When the shaft core 22 rotates, the protrusion 221 can drive the blade fixing block 232 to slide up and down on the fixed seat 231. The servo driving piece 21 controls the distance of the movement of the blade fixing block 232 by adjusting the rotation angle of the output, so as to control the cutting depth of the blade 2321, and the precision is higher.

[0041] It can be understood that the protrusion 221 is arranged at a position other than the center of the end face of the shaft core 22, so that the position of the protrusion 221 can change in the vertical direction when the shaft core 22 rotates. The placing groove on the back of the blade fixing block 232 is a horizontal groove, so that the blade fixing block 232 can move up and down when the protrusion 221 moves up and down.

[0042] Preferably, the end of the shaft core 22 is provided with a circular table. The diameter of the circular table is greater than the diameter of the shaft core 22. The protrusion 221 is arranged on the circular table. By arranging the circular table with a size greater than the shaft core 22, the shaft core 22 can rotate at a smaller angle to make the protrusion 221 move a longer distance in the vertical direction.

[0043] Preferably, the servo drive 21 is a servo motor, the output end of the servo motor is provided with a shaft coupling 4, and the shaft coupling 4 is connected to the shaft core 22 in a concentric manner.

[0044] Please refer to Figure 1 and Figure 4 In the embodiment, the fixed seat 231 is provided with a sliding rail 2311 arranged in the vertical direction, a sliding block 2312 is slidingly installed on the sliding rail 2311, the blade fixing block 232 is connected to the sliding block 2312, and the sliding block 2312 and the blade fixing block 232 can move up and down along the direction of the sliding rail 2311 to realize the slitting action.

[0045] Please refer to Figure 1 and Figure 3 In the embodiment, the transfer driving assembly includes a rotary drive 11, the output end of the rotary drive 11 is connected to a lead screw 12, the cutting mechanism 2 includes a connecting plate 25 and a shaft sleeve 24, the connecting plate 25 is connected to a nut 121 on the lead screw 12, the shaft sleeve 24 and the servo drive 21 are respectively installed on the two sides of the connecting plate 25, the shaft core 22 passes through the inside of the shaft sleeve 24, and the fixed seat 231 is installed on the top of the shaft sleeve 24.

[0046] The lead screw 12 is connected to the output end of the rotary drive 11, converts the rotary motion into linear motion, drives the connecting plate 25 to move linearly, the shaft sleeve 24 is used for mounting the fixed seat 231, the connecting plate 25 is provided with a hole corresponding to the shaft sleeve 24, the hole is used for passing through the shaft core 22, the shaft core 22 passes through the inside of the shaft sleeve 24, one end of the shaft core 22 provided with a protruding block 221 passes out from the end of the shaft sleeve 24 away from the connecting plate 25, the blade fixing block 232 on the fixed seat 231 is located on the side of the shaft sleeve 24 away from the connecting plate 25, and the protruding block 221 is inserted into a placing groove in the back of the blade fixing block 232.

[0047] Preferably, the rotary drive 11 is a servo motor, which has high precision and is helpful to accurately control the moving distance of the cutting mechanism 2, and the output end of the rotary drive 11 is provided with a shaft coupling 4, which is connected to the lead screw 12 in a concentric manner.

[0048] Please refer to Figure 4 In the embodiment, the shaft sleeve 24 is provided with a supporting rod 26 below, one end of the supporting rod 26 is connected to the connecting plate 25, the other end is provided with a supporting block 261, the supporting block 261 is located below the blade 2321, the top of the supporting block 261 is provided with a cutting groove (not shown in the figure) matched with the blade 2321, during slitting, the tab material belt is located between the supporting block 261 and the blade 2321, the supporting block 261 is used for providing a supporting surface, so as to facilitate the blade 2321 to perform slitting, and a part of the blade 2321 after cutting off the tab enters the cutting groove on the supporting block 261, so as to ensure complete cutting.

[0049] Please refer toFigure 4 In the embodiment, the side surface of the shaft sleeve 24 is provided with a detection induction device 27, which is used for inducting the scanning of the tab material belt. After the scanning is completed, the corresponding position is calculated through the programmed control, so as to ensure that the driving shearing mechanism 2 is accurately moved to the appropriate position for shearing, and the size accuracy of the tab is effectively ensured.

[0050] Please refer to Figure 3 In the embodiment, the conveying mechanism 1 comprises a base plate 13, the rotary driving member 11 is installed on the base plate 13, the base plate 13 is provided with a guide rail 131, the guide rail 131 is located below the lead screw 12, the support seat 132 is slidingly installed on the guide rail 131, the bottom of the connecting plate 25 is connected with the support seat 132, and the support seat 132 is used for providing support for the connecting plate 25, so as to avoid that the lead screw 12 is subjected to pressure and protect the structure of the lead screw 12.

[0051] Please refer to Figure 1 , Figure 2 and Figure 6 In the embodiment, the guide assembly comprises a vertical plate 32 and a lifting driving member 33, the vertical plate 32 is arranged on one side of the guide wheel 31, the output end of the lifting driving member 33 is connected with a pressing strip 35, the pressing strip 35 is located above the vertical plate 32, when the guide wheel 31 conveys the tab material belt to the appropriate position, the lifting driving member 33 drives the pressing strip 35 to move downward, so as to press the tab material belt on the top end of the vertical plate 32, which is convenient for subsequent slitting work. After the slitting work is completed, the lifting driving member 33 drives the pressing strip 35 to move upward, so as to loosen the material belt and make it continue to move.

[0052] Preferably, the lifting driving member 33 is a cylinder, the output end of the lifting driving member 33 is connected with a mounting plate 34, the two sides of the mounting plate 34 are provided with support rods 341, the pressing strip 35 is installed on the top end of the support rod 341, the two sides of the guide wheel 31 are provided with vertical columns 36, the vertical columns 36 are installed on the vertical plate 32, and the two ends of the center shaft of the guide wheel 31 are installed on the vertical columns 36.

[0053] It can be understood that the heights of the two vertical plates 32 are the same, so as to ensure that the material belt is kept horizontal after being pressed, which is helpful for subsequent slitting work.

[0054] Please refer to Figure 7 In another embodiment, the specific working steps and principles of the tab slitting device are as follows:

[0055] First, the lug material belt 5 is transported to the appropriate position by the guide wheel 31, the initial positioning is completed, then the lifting drive 33 drives the pressing strip 35 to move down, the material belt 5 is pressed tightly, then the cutting mechanism 2 does linear motion under the driving of the rotary drive 11, the detection induction device 27 is driven to scan the material belt, after the scanning is completed, according to the scanning data, the rotary drive 11 drives the cutting mechanism 2 to move to the specified slitting position, the servo drive 21 drives the shaft core 22 to rotate, the blade 2321 is driven to cut down, after cutting, the blade 2321 retreats, the lifting drive 33 drives the pressing strip 35 to move up, the material belt 5 is loosened, and thus the slitting is completed once.

[0056] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0057] In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A tab slitting apparatus characterized by, The application relates to a cutting mechanism and a conveying mechanism, wherein the conveying mechanism comprises a conveying driving assembly, and the cutting mechanism is connected with the conveying driving assembly; the cutting mechanism comprises a servo driving part, a shaft core and a slitting assembly; one end of the shaft core is connected with the servo driving part, and a protruding lug is arranged on the end face of the other end; the slitting assembly comprises a fixed seat and a blade fixing block which is slidingly installed on the fixed seat; a blade is installed on the blade fixing block; one side of the blade fixing block is provided with a placing groove; and the lug is arranged in the placing groove.

2. The tab slitting apparatus of claim 1, wherein, The cutting mechanism further comprises a connecting plate and a shaft sleeve; the connecting plate is connected with the conveying driving assembly; the shaft sleeve and the servo driving part are respectively installed on two sides of the connecting plate; the shaft core passes through the inside of the shaft sleeve; and the fixed seat is installed on the shaft sleeve.

3. The tab slitting apparatus of claim 2, wherein, A supporting rod is installed on the surface of one side of the connecting plate where the shaft sleeve is installed; an end of the supporting rod is provided with a supporting block; and a cutting groove matched with the blade is arranged on the supporting block.

4. The tab slitting apparatus of claim 2, wherein, One side of the shaft sleeve is provided with a detection inductive device.

5. The tab slitting apparatus of claim 2, wherein, The conveying driving assembly comprises a rotary driving part and a lead screw connected with the output end of the rotary driving part; the connecting plate is connected with a nut on the lead screw.

6. The tab slitting apparatus of claim 5, wherein, The conveying mechanism further comprises a base plate provided with a guide rail; a supporting seat is slidingly installed on the guide rail; and the bottom of the connecting plate is connected with the supporting seat.

7. The tab slitting apparatus of claim 1, wherein, The fixed seat is provided with a vertical sliding rail; a sliding block is slidingly installed on the sliding rail; and the blade fixing block is connected with the sliding block.

8. The tab slitting apparatus of claim 1, wherein, The application further comprises a feeding mechanism; the feeding mechanism comprises two guide assemblies; the guide assemblies comprise guide wheels; and the two guide assemblies are arranged on two sides of the conveying mechanism.

9. The tab slitting apparatus of claim 8, wherein, The guide assembly further comprises a vertical plate and a lifting driving part; the vertical plate is arranged on one side of the guide wheel; and a pressing strip is connected with the output end of the lifting driving part; and the pressing strip is located above the vertical plate.

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