CN114670264A - Cutting device for battery - Google Patents

Cutting device for battery Download PDF

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Publication number
CN114670264A
CN114670264A CN202210189175.6A CN202210189175A CN114670264A CN 114670264 A CN114670264 A CN 114670264A CN 202210189175 A CN202210189175 A CN 202210189175A CN 114670264 A CN114670264 A CN 114670264A
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CN
China
Prior art keywords
sealing
ring
column
base
fixing hole
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210189175.6A
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Chinese (zh)
Inventor
胡健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Ruida New Energy Technology Co ltd
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Jiangxi Ruida New Energy Technology Co ltd
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Publication date
Application filed by Jiangxi Ruida New Energy Technology Co ltd filed Critical Jiangxi Ruida New Energy Technology Co ltd
Priority to CN202210189175.6A priority Critical patent/CN114670264A/en
Publication of CN114670264A publication Critical patent/CN114670264A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/44—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cup or like cutting member
    • B26D1/445—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cup or like cutting member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/12—Fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Primary Cells (AREA)

Abstract

The invention discloses a cutting device for batteries, which belongs to the technical field of battery cutting and comprises a base, wherein a discharge hole is formed in the middle of the top surface of the base, a first fixed hole is formed in each of four corners of the top of the base, a supporting column is movably sleeved in the first fixed hole, a moving plate is fixedly mounted at the top end of the supporting column, a cutting mechanism is fixedly mounted at the bottom of the moving plate, and an air cylinder and a contact plate are fixedly mounted at the top of the base. According to the invention, the movable plate is arranged to move downwards and simultaneously drive the sealing column and the sealing ring to move downwards and form negative pressure at the top opening of the second fixing hole, so that the pole piece positioned on the top of the base is fixed without integral pressing and fixing of the movable plate, and the pole piece fixing device not only has the functions of synchronous fixing and front-back sequence of cutting, but also utilizes the symmetrical distribution of the second fixing hole to adsorb a plurality of stress points of the pole piece, thereby multiplying the fixing effect of the pole piece and simultaneously reducing the damage to the pole piece.

Description

Cutting device for battery
Technical Field
The invention relates to the technical field of battery cutting, in particular to a cutting device for a battery.
Background
The development of battery is in the bottleneck state all the time in this century beginning, and along with the diligent effort of scientist, the lithium cell breaks out of purpose, extensively receives favor through its outstanding accumulate performance, and the battery pole piece of lithium cell need cut the shaping in process of production, consequently needs a cutting device for the battery.
Current a cutting device for battery mainly uses the cross cutting machine form as the owner, relative motion through last bed die cuts the pole piece, and when the cutting to the fixed of pole piece is particularly important, because the pole piece of lithium cell is very thin very fragile, very easy impaired, current fixed mode is just to go up the mould with cutting device's whole motion and suppress fixedly, this kind of mode uncontrollable suppression dynamics, and the stress surface of pole piece is big and uneven, make the pole piece take place the damage easily at fixed in-process, therefore, the urgent need for change the fixed mode to the pole piece.
Meanwhile, the existing cutting device for the battery is generally provided with a buffer system, but is only limited to a simple means of absorbing energy by a spring, when the shock absorption and the buffer are carried out, the spring absorbs energy by being compressed to achieve the purpose of buffering, but the energy cannot be released due to the fact that the compressed spring is compressed for a long time, on one hand, the abrasion to the spring is increased, the service life of the spring is shortened, and meanwhile, the spring is rigidly stressed when stressed, the moving space is lacked, and the buffer effect is further reduced.
In addition, the cutting form of the lithium battery in the prior art utilizes the air cylinder or the hydraulic rod as power to drive the cutter to cut the pole piece, and the air cylinder or the hydraulic rod has the defect of instability, so that the cutting force acting on the pole piece is unstable and nonlinear, the phenomenon of tearing easily occurs when the cutting surface of the pole piece is cut, and the final cutting and forming effect is influenced.
Disclosure of Invention
The invention aims to provide a cutting device for a battery, which aims to solve the problems of poor fixing effect, poor buffering effect and poor cutting effect in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the cutting device for the battery comprises a base, wherein a discharge hole is formed in the middle of the top surface of the base, a first fixed hole is formed in each of four corners of the top of the base, a support column is movably sleeved in the first fixed hole, a movable plate is fixedly mounted at the top end of the support column, a cutting mechanism is fixedly mounted at the bottom of the movable plate, an air cylinder and a contact plate are fixedly mounted at the top of the base, four second fixed holes are formed in the top of the base, the second fixed holes and the first fixed holes penetrate through the bottom of the base, and are prevented from being blocked in the downward movement process of the connecting plate, so that the battery pole pieces are more efficiently fixed and cut, a communicating groove is formed in the bottom of the base, a sealing groove is formed in the upper part of the inner wall of the second fixed hole, a sealing column is sleeved in the inner part of the second fixed hole in a movable mode, and a sealing ring is fixedly sleeved on the outer surface of the sealing column, the bottom of the sealing column is fixedly connected with a spring, the other end of the spring is fixedly connected with a moving block, the top of the moving block is fixedly provided with a reset column, a connecting plate is arranged inside the communicating groove, two ends of the top of the connecting plate are respectively fixedly connected with the moving block and the supporting column, and the inner wall of the second fixing hole is fixedly provided with a limiting ring;
As shown in fig. 1 and 3, the cylinder is started to contract downwards quickly and drive the contact plate to move downwards, so that the movable plate loses support instantly, the movable plate starts to drive the support column and the cutting mechanism to do free-fall motion and drive the connecting plate to move downwards, so that the movable block is driven to move downwards, at the moment, the spring is stretched and gradually pulls the sealing column downwards, the sealing ring positioned in the sealing groove is extruded by the sealing column moving downwards and the sealing groove to deform and contract inwards, the sealing ring finally leaves the inside of the sealing groove and forms a sealing sleeve connection with the inner wall of the second fixing hole, the sealing column drives the sealing ring to move downwards continuously, the top opening of the second fixing hole starts to generate negative pressure and adsorb and fix the battery pole piece, and the battery pole piece does not move downwards until the bottom of the sealing column contacts with the top of the limiting ring;
the movable plate moves downwards, the sealing column and the sealing ring are driven to move downwards, and negative pressure is formed at the top opening of the second fixing hole, so that the pole piece positioned on the top of the base is fixed without integral pressing and fixing of the movable plate, the front and back sequential functions of synchronous fixing and cutting are realized, multiple stress points of the pole piece are adsorbed by utilizing symmetrical distribution of the second fixing hole, the fixing effect of the pole piece is doubled, and the damage to the pole piece is reduced;
Meanwhile, in the process of descending the moving plate, the supporting column and the connecting plate are driven to drive the moving block to move downwards, so that the moving block continuously stretches the spring in the process of moving downwards, the moving plate which does free-fall motion is buffered, when the cutting mechanism reaches a cutting position, the bottom of the sealing column is limited by the limiting ring, the position of the sealing column is limited, at the moment, the bottom of the moving plate is in contact with the contact plate and provides support through the cylinder and the contact plate, the contact plate and the moving plate can be driven to move upwards and reset after the cylinder is started again, the stretching degree and the stretching time of the spring are greatly reduced, the force borne by the spring is converted into energy for driving the sealing column and the sealing groove to adopt negative pressure for fixing, the abrasion of the spring is reduced through the movement of the sealing column, and a part of the buffering force is divided for fixing the pole piece, the power generated by downward movement impact of the movable plate is greatly reduced, and the buffer device has the advantage of good buffer effect.
As a further scheme of the invention, the cutting mechanism comprises a connecting column, an annular cutter is fixedly mounted at the bottom end of the connecting column, a first placing ring is fixedly mounted on the outer edge of the top of the annular cutter, a communicating pipe is fixedly connected to the top of the first placing ring, a second placing ring is fixedly communicated with the top end of the communicating pipe, water is filled in the inner cavities of the first placing ring and the communicating pipe, and the top of the second placing ring is fixedly connected with the movable plate;
As shown in fig. 1, 2, 3 and 4, after the cylinder is started and contracts downwards, the contact plate is driven to move downwards, so that the moving plate loses the supporting force, the moving plate starts to move downwards and does free-fall motion, water in the first placing ring and the water inner cavity moves upwards due to inertia, and in the process that the moving plate stops moving, the water moving upwards due to inertia starts to convert gravitational potential energy into kinetic energy, so that an additional pressure is applied to the annular cutter, and the cutting operation of the battery pole piece is completed;
through being provided with communicating pipe and not only communicate No. two rings of placing and place the ring No. one respectively, make water can reciprocate through communicating pipe, on the one hand, give a very fast speed of annular cutter through the free naked body motion of movable plate, thereby accelerate the cutting efficiency to battery sheet, thereby it is unstable to have avoided the cutting force to appear, thereby the nonlinearity causes the phenomenon of tearing to the battery sheet cutting plane, very big reinforcing cutting effect, and simultaneously, through the inertia of water with the water gravity potential energy of the in-process that moves down turn into kinetic energy, make the cutting force of annular cutter bigger, it is more steady, the cutting effect of battery sheet has further been improved.
As a further scheme of the invention, the number of the cylinders is two, the two cylinders are respectively and fixedly arranged on the front side and the rear side of the top of the base, a contact plate is fixedly arranged at the telescopic end of each cylinder, and the top of the contact plate is in limit contact with the bottom of the moving plate;
as shown in fig. 6 and 9, the number of the cylinders and the number of the contact plates are two, and at this time, the cylinders act as movable supports and suddenly contract when the moving plate needs to move downwards, so that the moving plate moves downwards by using the self-weight of the moving plate;
through being provided with cylinder and contact plate to avoid the unstable cutting force transmission that causes of the flexible dynamics of cylinder not to be connected, unstable problem.
As a further scheme of the present invention, the number of the communicating grooves is four, the four communicating grooves and the four second fixing holes are all located on a horizontal diagonal line of the base, each second fixing hole is communicated with one first fixing hole through a communicating groove, and the connecting plate is located inside the communicating groove, the second fixing hole and the first fixing hole;
as shown in fig. 1, 5 and 6, the communicating groove is located at the bottom of the base, has a downward opening, and is used for communicating the second fixing hole with the first fixing hole, so that the connecting plate is located therein and is connected with the moving block and the supporting column, the connecting plate and the moving block are driven to move downward in the process that the moving plate drives the supporting column to move downward, then the spring is stretched downward, so that the other end of the spring drives the sealing column to move downward, and finally, negative pressure is generated by matching with the sealing ring, so as to complete synchronous fixation of the battery pole piece;
The effect in intercommunication groove is mainly that intercommunication No. two fixed orificess and a fixed orifices for the connecting plate of connecting movable block and support column can freely move from top to bottom, and transmission efficiency is high.
As a further scheme of the invention, the sealing ring is made of a rubber block, the sealing ring is movably clamped inside the sealing groove, and the top of the reset column is in limit contact with the bottom of the sealing column;
the sealing ring is made of a rubber block, when the sealing column moves downwards under the action of the tensile force of the spring, the sealing ring is driven to move downwards, and at the initial stage of movement, the sealing ring moves downwards and is extruded by the inside of the sealing groove to deform, so that the tensile degree of the spring is further increased, along with the increase of the tensile force of the spring, the sealing ring is completely deformed and is separated from the inside of the sealing groove to be in contact with the inner wall of the second fixing hole to form a sealing condition, along with the downward movement of the sealing column driving the sealing ring, negative pressure is formed at the top opening of the second fixing hole, and therefore synchronous fixing of the battery pole pieces is completed;
and the effect of post that resets is then to avoid the spring can't promote the sealing post downstream after the movable block shifts up to reset, drives the sealing washer card again and goes into the inside of seal groove, and the spring is non-rigid structure, consequently when the movable block shifts up to reset, can drive the post rebound that resets and promote the sealing post rebound, accomplishes the reseing of sealing post to it is fixed to carry out the negative pressure next time to the battery pole piece.
As a further scheme of the invention, the limit ring is positioned above the moving block, and the bottom of the limit ring is in limit contact with the top of the moving block;
the spacing ring is located the top of movable block, can avoid the cylinder upwards to stretch out and drive contact plate, movable plate, support column, connecting plate and movable block rebound apart from too big for the sealed post has exposed the top of base, makes battery sheet can't level and smooth the range, has guaranteed the fixed condition to battery sheet.
As a further scheme of the present invention, the number of the communicating pipes is ten, the ten communicating pipes are distributed circumferentially at equal intervals on the basis of the horizontal circle center of the connecting column, the first placing ring, the communicating pipes and the second placing ring are communicated with each other, and the volume value of the water is half of the sum of the volume values of the inner cavities of the first placing ring, the communicating pipes and the second placing ring;
as shown in fig. 1 and 4, water is located in the inner cavities of the annular cutter and the water, and in the process that the movable plate drives the cutting mechanism to move downwards, the water moves upwards by means of the inertia of the flowing property of the water, and when the annular cutter reaches the cutting position and stops, the gravitational potential energy of the water moving upwards is instantly converted into kinetic energy;
kinetic energy generated in the moving process of water is added to the annular cutter, so that the cutting force of the annular cutter is larger, the cutting is quicker, and the cutting effect is better.
As a further scheme of the invention, when the top of the limit ring is in limit contact with the top of the moving block, the spring is in an unstressed state;
when the moving block is in limit contact with the limiting ring, the moving block is reset, at the moment, the moving block can drive the reset column to upwards abut against the sealing column, and drive the sealing column to upwards move and reset, so that the sealing ring is clamped into the sealing ring again, preparation can be made for fixing the battery pole piece next time, and at the moment, the spring cannot be stretched and cannot be stressed;
the spring is responsible for connecting movable block and sealing post this moment, and at the in-process that the movable block moved down, the in-process was first through being stretched to provide buffer function for the movable plate, then drives sealing post and sealing washer through bigger and bigger pulling force and move down and form No. two fixed orifices open-top's negative pressure fixed condition, and the spring can avoid directly driving sealing post and sealing washer to move down at the beginning of movable plate downstream to a buffer function has been provided for the movable plate partly.
As a further scheme of the invention, sleeves are fixedly arranged at four corners of the top of the base, the sleeves are movably sleeved on the outer surfaces of the support columns, and the inner diameter value of each sleeve is equal to that of the first fixing hole;
The sleeve is movably sleeved on the outer surface of the supporting column and mainly provides a guiding function for the supporting column, so that the moving plate moves downwards more stably without deviation.
As a further scheme of the invention, the inner wall of the second fixing hole is designed by polishing and grinding, and the shape and the size of the horizontal section of the second fixing hole are matched with those of the horizontal section of the sealing column;
the polishing and grinding design of the inner wall of the second fixing hole enables the sealing ring to reduce friction when the sealing ring is separated from the inside of the sealing groove and enters the inside of the second fixing hole, and meanwhile, the sealing performance of the sealing ring on the inner wall of the second fixing hole is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the movable plate is arranged to move downwards and simultaneously drive the sealing column and the sealing ring to move downwards and form negative pressure at the top opening of the second fixing hole, so that the pole piece positioned on the top of the base is fixed without integral pressing and fixing of the movable plate, and the pole piece fixing device not only has the functions of synchronous fixing and front-back sequence of cutting, but also utilizes the symmetrical distribution of the second fixing hole to adsorb a plurality of stress points of the pole piece, thereby multiplying the fixing effect of the pole piece and simultaneously reducing the damage to the pole piece.
2. In the process of descending the moving plate, the supporting column and the connecting plate are driven to drive the moving block to move downwards, so that the spring is continuously stretched in the downward moving process of the moving block, the moving plate which does free-fall motion is buffered, when the cutting mechanism reaches a cutting position, the bottom of the sealing column is limited by the limiting ring, the position limitation of the sealing column is completed, at the moment, the bottom of the moving plate is contacted with the contact plate and is supported by the cylinder and the contact plate, the contact plate and the moving plate can be driven to move upwards and reset after the cylinder is restarted, the stretching degree and time of the spring are greatly reduced, the force borne by the spring is converted into energy for driving the sealing column and the sealing groove to adopt negative pressure for fixation, the abrasion of the spring is reduced by the movement of the sealing column, and part of the buffering force is divided for fixing the pole piece, the force generated by downward moving impact of the moving plate is greatly reduced, and the buffer plate has the advantage of good buffer effect.
3. According to the invention, the communicating pipe is respectively communicated with the second placing ring and the first placing ring, so that water can move up and down through the communicating pipe, on one hand, the free naked body movement of the moving plate gives a very fast speed to the annular cutter, thereby accelerating the cutting efficiency of the battery pole piece, avoiding the phenomenon that the cutting force is torn to the cutting surface of the battery pole piece due to instability and nonlinearity, greatly enhancing the cutting effect, and meanwhile, the gravitational potential energy of the water in the downward moving process is converted into kinetic energy through the inertia of the water, so that the cutting force of the annular cutter is larger and more stable, and the cutting effect of the battery pole piece is further improved.
Drawings
FIG. 1 is a schematic view in oblique section of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention
FIG. 3 is a schematic front view of the structure of the present invention;
FIG. 4 is a front cut-away schematic view of the structure of the present invention;
FIG. 5 is a side cutaway schematic view of the cutting mechanism of the present invention;
FIG. 6 is a schematic bottom view of the structure of the present invention;
FIG. 7 is a schematic diagram showing the separation of the support post, the moving plate, the cylinder, the connecting plate, the moving block, the reset post, the limit ring, the spring, the sealing post, the sealing ring, the contact plate and the sleeve according to the present invention;
FIG. 8 is a schematic diagram showing the separation of the support post, the connecting plate, the moving block, the return post, the stop collar, the spring, the seal post and the seal ring according to the present invention;
FIG. 9 is a schematic diagram showing the separation of the connecting column, the annular cutter, the first placing ring, the communicating tube and the second placing ring according to the present invention;
fig. 10 is a schematic front view of the structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a base; 2. a discharge port; 3. a first fixing hole; 4. a support pillar; 5. moving the plate; 6. a cylinder; 7. a cutting mechanism; 71. connecting columns; 72. a ring-shaped cutter; 73. placing a ring I; 74. a communicating pipe; 75. placing a ring II; 76. water; 8. a communicating groove; 9. a second fixing hole; 10. a connecting plate; 11. a moving block; 12. a reset column; 13. a limiting ring; 14. a spring; 15. sealing the column; 16. a sealing groove; 17. a seal ring; 18. a contact plate; 19. a sleeve.
Detailed Description
Referring to fig. 1-10, the present invention provides a technical solution: a cutting device for a battery comprises a base 1, a discharge hole 2 is formed in the middle of the top surface of the base 1, a first fixed hole 3 is formed in each of four corners of the top of the base 1, a support column 4 is movably sleeved in the first fixed hole 3, a movable plate 5 is fixedly installed at the top end of the support column 4, a cutting mechanism 7 is fixedly installed at the bottom of the movable plate 5, a cylinder 6 and a contact plate 18 are fixedly installed at the top of the base 1, four second fixed holes 9 are formed in the top of the base 1, the second fixed holes 9 and the first fixed holes 3 penetrate through the bottom of the base 1, and are prevented from being blocked in the downward moving process of a connecting plate 10, so that the fixing and cutting of a battery pole piece are more efficient, a communicating groove 8 is formed in the bottom of the base 1, a sealing groove 16 is formed in the upper portion of the inner wall of the second fixed hole 9, and a sealing column 15 is movably sleeved in the second fixed hole 9, the outer surface of the sealing column 15 is fixedly sleeved with a sealing ring 17, the bottom of the sealing column 15 is fixedly connected with a spring 14, the other end of the spring 14 is fixedly connected with a moving block 11, the top of the moving block 11 is fixedly provided with a reset column 12, a connecting plate 10 is arranged inside the communicating groove 8, two ends of the top of the connecting plate 10 are respectively fixedly connected with the moving block 11 and the supporting column 4, and the inner wall of the second fixing hole 9 is fixedly provided with a limiting ring 13;
As shown in fig. 1 and 3, the starting cylinder 6 contracts downwards quickly and drives the contact plate 18 to move downwards, so that the moving plate 5 loses support instantaneously, the moving plate 5 starts to drive the supporting column 4 and the cutting mechanism 7 to do free-fall motion, the connecting plate 10 is driven to move downwards, the moving block 11 is driven to move downwards, at this time, the spring 14 is stretched, and the sealing column 15 is pulled downwards gradually, wherein the sealing column 15 is pulled downwards gradually, so as to avoid that the material is adsorbed quickly at the beginning and the material is prevented from being adsorbed suddenly to cause damage, and the sealing ring 17 located inside the sealing groove 16 is pushed by the sealing column 15 moving downwards to deform and contract inwards, and the sealing ring 17 finally leaves the inside of the sealing groove 16 and forms a sealing sleeve connection with the inner wall of the second fixing hole 9, with the sealing column 15 driving the sealing ring 17 to move downwards continuously, the top opening of the second fixing hole 9 starts to generate negative pressure and automatically adsorb and fix the battery pole piece until the bottom of the sealing column 15 is contacted with the top of the limiting ring 13 and does not move downwards;
the movable plate 5 is arranged to move downwards and simultaneously drive the sealing column 15 and the sealing ring 17 to move downwards and form negative pressure at the top opening of the second fixing hole 9, so that the pole piece positioned at the top of the base 1 is fixed without integral pressing and fixing of the movable plate 5, the pole piece fixing device not only has the functions of synchronous fixing and cutting in a front-back sequence, but also utilizes symmetrical distribution of the second fixing hole 9 to adsorb a plurality of stress points of the pole piece, the fixing effect of the pole piece is doubled, and meanwhile, the damage to the pole piece is reduced;
Meanwhile, in the process of descending the moving plate 5, the supporting column 4 and the connecting plate 10 are driven to drive the moving block 11 to move downwards, so that the spring 14 is continuously stretched in the downward moving process of the moving block 11, the moving plate 5 which does free-fall motion is buffered, when the cutting mechanism 7 reaches a cutting position, the bottom of the sealing column 15 is limited by the limiting ring 13, the position limitation of the sealing column 15 is completed, at the moment, the bottom of the moving plate 5 is in contact with the contact plate 18 and is supported by the cylinder 6 and the contact plate 18, the contact plate 18 and the moving plate 5 can be driven to move upwards and reset after the cylinder 6 is restarted, the stretching degree and the stretching time of the spring 14 are greatly reduced, the force borne by the spring 14 is converted into energy for driving the sealing column 15 and the sealing groove 16 to adopt negative pressure for fixing, and the abrasion to the spring 14 is reduced by the movement of the sealing column 15, a part of buffering force is divided to be used for fixing the pole pieces, so that the force generated by downward movement impact of the moving plate 5 is greatly reduced, and the buffering effect is good.
The cutting mechanism 7 comprises a connecting column 71, an annular cutter 72 is fixedly mounted at the bottom end of the connecting column 71, a first placing ring 73 is fixedly mounted on the outer edge of the top of the annular cutter 72, a communicating pipe 74 is fixedly connected to the top of the first placing ring 73, a second placing ring 75 is fixedly communicated with the top end of the communicating pipe 74, water 76 is filled in the inner cavities of the first placing ring 73 and the communicating pipe 74, and the top of the second placing ring 75 is fixedly connected with the movable plate 5;
As shown in fig. 1, 2, 3 and 4, after the cylinder 6 is started and contracts downwards, the contact plate 18 is driven to move downwards, so that the moving plate 5 loses the supporting force, the moving plate 5 starts to move downwards and does free-fall motion, so that the water 76 in the first placing ring 73 and the inner cavity of the water 76 moves upwards due to inertia, and in the process of moving the moving plate 5 under the stop, the water 76 moving upwards due to inertia starts to convert gravitational potential energy into kinetic energy, so that an additional pressure is applied to the annular cutter 72, and the cutting operation of the battery pole pieces is completed;
through being provided with communicating pipe 74 and communicate No. two respectively and place ring 75 and place ring 73 No. one, make water 76 can reciprocate through communicating pipe 74, on the one hand, give annular cutter 72 a very fast speed through the free naked body motion of movable plate 5, thereby accelerate the cutting efficiency to battery pole piece, thereby the cutting force is avoided appearing unstably, thereby the nonlinearity causes the phenomenon of tearing to battery pole piece cutting plane, very big reinforcing cutting effect, and simultaneously, the inertia through water 76 turns into the kinetic energy with water 76 at the gravitational potential energy of the in-process that moves down, make annular cutter 72's cutting force bigger, more steady, the cutting effect of battery pole piece has further been improved.
The number of the cylinders 6 is two, the two cylinders 6 are respectively and fixedly installed on the front side and the rear side of the top of the base 1, a contact plate 18 is fixedly installed at the telescopic end of each cylinder 6, and the top of each contact plate 18 is in limit contact with the bottom of the movable plate 5;
as shown in fig. 6 and 9, the number of the air cylinder 6 and the contact plate 18 is two, and at this time, the function of the air cylinder 6 becomes a movable support, and the moving plate 5 suddenly contracts when needing to move downwards, so that the moving plate 5 moves downwards by using the self-weight of the moving plate;
through being provided with cylinder 6 and contact plate 18 to the cutting force transmission that has avoided cylinder 6 flexible dynamics unstable and cause is not connected, unstable problem.
The number of the communicating grooves 8 is four, the four communicating grooves 8 and the four second fixing holes 9 are located on a horizontal diagonal line of the base 1, each second fixing hole 9 is communicated with one first fixing hole 3 through the communicating groove 8, and the connecting plate 10 is located inside each communicating groove 8, each second fixing hole 9 and each first fixing hole 3;
as shown in fig. 1, 5 and 6, the communicating groove 8 is located at the bottom of the base 1, has a downward opening, and is used for communicating the second fixing hole 9 with the first fixing hole 3, so that the connecting plate 10 is located therein and is connected with the moving block 11 and the supporting column 4, the connecting plate 10 and the moving block 11 are driven to move downward in the process that the moving plate 5 drives the supporting column 4 to move downward, then the spring 14 is stretched downward, so that the other end of the spring 14 drives the sealing column 15 to move downward, and finally, negative pressure is generated by matching with the sealing ring 17, so as to complete synchronous fixation of the battery pole pieces;
The communicating groove 8 is mainly used for communicating the second fixing hole 9 with the first fixing hole 3, so that the connecting plate 10 connecting the moving block 11 with the supporting column 4 can move up and down freely, and the transmission efficiency is high.
The sealing ring 17 is made of a rubber block, the sealing ring 17 is movably clamped inside the sealing groove 16, and the top of the resetting column 12 is in limit contact with the bottom of the sealing column 15;
the sealing ring 17 is made of a rubber block, when the sealing column 15 moves downwards under the action of the tensile force of the spring 14, the sealing ring 17 is driven to move downwards, the sealing ring 17 moves downwards and is extruded by the inside of the sealing groove 16 to deform at the initial stage of movement, so that the stretching degree of the spring 14 is further increased, along with the increase of the tensile force of the spring 14, the sealing ring 17 is completely deformed and is separated from the inside of the sealing groove 16 to be in contact with the inner wall of the second fixing hole 9 to form a sealing condition, along with the driving of the sealing column 15 on the sealing ring 17, negative pressure is formed at the top opening of the second fixing hole 9, and therefore the synchronous fixing of the battery pole pieces is completed;
the reset column 12 is used for preventing the spring 14 from pushing the sealing column 15 to move downwards after the moving block 11 moves upwards for resetting, and driving the sealing ring 17 to be clamped into the sealing groove 16 again, and the spring 14 is of a non-rigid structure, so that when the moving block 11 moves upwards for resetting, the reset column 12 can be driven to move upwards and push the sealing column 15 to move upwards, the reset of the sealing column 15 is completed, and the battery pole piece is fixed by negative pressure at the next time.
The limiting ring 13 is positioned above the moving block 11, and the bottom of the limiting ring 13 is in limiting contact with the top of the moving block 11;
the limiting ring 13 is located above the moving block 11, so that the phenomenon that the distance that the cylinder 6 extends upwards and drives the contact plate 18, the moving plate 5, the supporting column 4, the connecting plate 10 and the moving block 11 to move upwards is too large can be avoided, the sealing column 15 is exposed out of the top of the base 1, the battery pole pieces cannot be arranged flatly, and the fixing condition of the battery pole pieces is guaranteed.
The number of the communicating pipes 74 is ten, the ten communicating pipes 74 are distributed in an equidistant circumference by taking the horizontal circle center of the connecting column 71 as a reference, the first placing ring 73, the communicating pipes 74 and the second placing ring 75 are communicated with each other, and the volume value of the water 76 is half of the sum of the volume values of the inner cavities of the first placing ring 73, the communicating pipes 74 and the second placing ring 75;
as shown in fig. 1 and 4, the water 76 is located in the inner cavities of the annular cutter 72 and the water 76, and in the process that the moving plate 5 drives the cutting mechanism 7 to move downwards, the water 76 moves upwards by virtue of the inertia of the flowing property of the water, and when the annular cutter 72 reaches the cutting position and stops, the gravitational potential energy of the upwards moving water 76 is instantly converted into kinetic energy;
the kinetic energy generated by the water 76 in the moving process is added to the annular cutter 72, so that the cutting force of the annular cutter 72 is larger, the cutting is quicker, and the cutting effect is better.
When the top of the limiting ring 13 is in limiting contact with the top of the moving block 11, the spring 14 is in an unstressed state;
when the moving block 11 is in limit contact with the limiting ring 13, the moving block 11 is reset, at the moment, the moving block 11 can drive the reset column 12 to upwards abut against the sealing column 15, and drive the sealing column 15 to upwards move and reset, so that the sealing ring 17 is clamped into the sealing ring 17 again, preparation can be made for fixing the battery pole piece next time, and at the moment, the spring 14 cannot be stretched and stressed;
the spring 14 is responsible for connecting the moving block 11 and the sealing column 15, and in the process of moving down the moving block 11, firstly, the spring is stretched to provide a buffering function for the moving plate 5, then, the sealing column 15 and the sealing ring 17 are driven by increasingly larger pulling force to move down and form a negative pressure fixing condition of the top opening of the second fixing hole 9, and the spring 14 can avoid directly driving the sealing column 15 and the sealing ring 17 to move down at the beginning of moving down the moving plate 5, so that a part of the buffering function is provided for the moving plate 5.
Wherein, the four corners of the top of the base 1 are all fixedly provided with sleeves 19, the sleeves 19 are movably sleeved on the outer surface of the supporting column 4, and the inner diameter value of the sleeves 19 is equal to that of the first fixing holes 3;
The sleeve 19 is movably sleeved on the outer surface of the support column 4 and mainly provides a guiding function for the support column 4, so that the moving plate 5 moves downwards more stably without deviation.
The inner wall of the second fixing hole 9 is designed by polishing and grinding, and the shape and the size of the horizontal section of the second fixing hole 9 are matched with those of the horizontal section of the sealing column 15;
the polishing and grinding design of the inner wall of the second fixing hole 9 enables the sealing ring 17 to be separated from the inside of the sealing groove 16 and enter the inside of the second fixing hole 9, so that the friction force can be reduced, and meanwhile, the sealing performance of the sealing ring 17 on the inner wall of the second fixing hole 9 is improved.
The working principle is as follows:
firstly, placing a battery pole piece on the top of a base 1, as shown in fig. 1 and 3, starting an air cylinder 6 and shrinking downwards to drive a contact plate 18 to move downwards so as to instantly lose support of a moving plate 5, starting the moving plate 5 to drive a support column 4 and a cutting mechanism 7 to do downward free-fall motion to drive a connecting plate 10 to move downwards so as to drive a moving block 11 and a reset column 12 to move downwards, at this time, a spring 14 starts to be stretched downwards and transmits tensile force to the bottom of a sealing column 15, the spring 14 continuously pulls the sealing column 15 downwards in the stretching process, the sealing column 15 starts to drive a sealing ring 17 to move downwards under the stress, the sealing ring 17 is extruded and deformed in a sealing groove 16, the sealing ring 17 gradually separates from the inside of the sealing groove 16 in the deformation process, the abrasion to the spring 14 is reduced through the movement of the sealing column 15, and a part of buffering force is divided for fixing the pole piece, the power generated by the downward movement impact of the moving plate 5 is greatly reduced, and the buffer device has the advantage of good buffer effect;
Then, the sealing post 15 drives the sealing groove 16 to move downwards and enables the top opening of the second fixing hole 9 to generate negative pressure, the negative pressure adsorbs and fixes the battery pole piece, the sealing post 15 is in contact with the limiting ring 13 and limited in the downward movement process, the movable plate 5 is arranged to move downwards and simultaneously drive the sealing post 15 and the sealing ring 17 to move downwards and form negative pressure at the top opening of the second fixing hole 9, so that the whole movable plate 5 is not required to be pressed and fixed when the top pole piece on the base 1 is fixed, the front and back sequential functions of synchronous fixation and cutting are realized, the symmetrical distribution of the second fixing hole 9 is utilized to adsorb multiple stress points of the pole piece, the fixing effect of the pole piece is doubled, and the damage to the pole piece is reduced;
finally, when the moving plate 5 starts to move downwards and does free-fall movement, the water 76 in the inner cavities of the first placing ring 73 and the water 76 moves upwards due to inertia, and in the process that the moving plate 5 stops moving downwards, the gravitational potential energy of the water 76 moving upwards due to inertia starts to be converted into kinetic energy, so that extra pressure is applied to the annular cutter 72, the cutting operation of the battery pole piece is completed, the gravitational potential energy of the water 76 in the downward moving process is converted into the kinetic energy through the inertia of the water 76, the cutting force of the annular cutter 72 is larger and more stable, and the cutting effect of the battery pole piece is further improved.

Claims (10)

1. A cutting device for battery, including base (1), discharge gate (2), its characterized in that have been seted up at the middle part of base (1) top surface: the cutting tool is characterized in that a first fixing hole (3) is formed in each of four corners of the top of the base (1), a supporting column (4) is sleeved on the inner portion of each first fixing hole (3) in a movable mode, a moving plate (5) is fixedly mounted at the top end of each supporting column (4), a cutting mechanism (7) is fixedly mounted at the bottom of each moving plate (5), an air cylinder (6) and a contact plate (18) are fixedly mounted at the top of the base (1), four second fixing holes (9) are formed in the top of the base (1), a communicating groove (8) is formed in the bottom of the base (1), a sealing groove (16) is formed in the upper portion of the inner wall of each second fixing hole (9), a sealing column (15) is sleeved on the inner portion of each second fixing hole (9) in a movable mode, a sealing ring (17) is sleeved on the outer surface of each sealing column (15), and a spring (14) is fixedly connected to the bottom of each sealing column (15), the other end of the spring (14) is fixedly connected with a moving block (11), the top of the moving block (11) is fixedly provided with a reset column (12), a connecting plate (10) is arranged inside the communicating groove (8), two ends of the top of the connecting plate (10) are fixedly connected with the moving block (11) and the supporting column (4) respectively, and the inner wall of the second fixing hole (9) is fixedly provided with a limiting ring (13).
2. The cutting device for batteries according to claim 1, characterized in that: cutting mechanism (7) are including spliced pole (71), the bottom fixed mounting of spliced pole (71) has annular cutter (72), the outward flange fixed mounting at annular cutter (72) top has one to place ring (73), top fixedly connected with communicating pipe (74) of placing ring (73) No. one, the fixed intercommunication in top of communicating pipe (74) has No. two to place ring (75), the inner chamber packing of placing ring (73) and communicating pipe (74) has water (76), the top and movable plate (5) fixed connection of placing ring (75) No. two.
3. The cutting device for batteries according to claim 1, characterized in that: the number of the cylinders (6) is two, the cylinders (6) are respectively and fixedly installed on the front side and the rear side of the top of the base (1), a contact plate (18) is fixedly installed at the telescopic end of each cylinder (6), and the top of each contact plate (18) is in limited contact with the bottom of the movable plate (5).
4. The cutting device for batteries according to claim 1, characterized in that: the number of the communicating grooves (8) is four, the communicating grooves (8) and four second fixing holes (9) are located on the horizontal diagonal line of the base (1), each second fixing hole (9) is communicated with one first fixing hole (3) through the communicating groove (8), and the connecting plate (10) is located inside the communicating grooves (8), the second fixing holes (9) and the first fixing holes (3).
5. The cutting device for batteries according to claim 1, characterized in that: the sealing ring (17) is made of a rubber block, the sealing ring (17) is movably clamped in the sealing groove (16), and the top of the reset column (12) is in limited contact with the bottom of the sealing column (15).
6. The cutting device for batteries according to claim 1, characterized in that: the limiting ring (13) is positioned above the moving block (11), and the bottom of the limiting ring (13) is in limiting contact with the top of the moving block (11).
7. The cutting device for batteries according to claim 2, characterized in that: the quantity of communicating pipe (74) is ten, ten communicating pipe (74) use the horizontal centre of a circle of spliced pole (71) as the benchmark and are equidistant circumference distribution, No. one place ring (73), communicating pipe (74) and No. two place ring (75) and communicate each other, the volume value of water (76) is that No. one places ring (73), communicating pipe (74) and No. two places half of ring (75) inner chamber volume value sum.
8. The cutting device for batteries according to claim 1, characterized in that: when the top of the limiting ring (13) is in limiting contact with the top of the moving block (11), the spring (14) is in an unstressed state.
9. The cutting device for batteries according to claim 1, characterized in that: the all fixed mounting in four corners department at base (1) top has sleeve (19), sleeve (19) activity is cup jointed at the surface of support column (4), the internal diameter value of sleeve (19) equals with the internal diameter value of a fixed orifices (3).
10. The cutting device for batteries according to claim 1, characterized in that: the inner wall of the second fixing hole (9) is designed for polishing and grinding, and the shape and the size of the horizontal section of the second fixing hole (9) are matched with those of the horizontal section of the sealing column (15).
CN202210189175.6A 2022-02-28 2022-02-28 Cutting device for battery Pending CN114670264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210189175.6A CN114670264A (en) 2022-02-28 2022-02-28 Cutting device for battery

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Application Number Priority Date Filing Date Title
CN202210189175.6A CN114670264A (en) 2022-02-28 2022-02-28 Cutting device for battery

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CN114670264A true CN114670264A (en) 2022-06-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003168775A (en) * 2001-12-03 2003-06-13 Ueno Seiki Kk Apparatus and method for cutting lead electrode of semiconductor device
CN104815893A (en) * 2015-05-14 2015-08-05 东莞市亿鑫丰精密机械设备科技有限公司 Pole piece punching device
CN210731626U (en) * 2019-11-08 2020-06-12 武汉安泰能科技有限公司 Pole piece cutting device for lithium battery processing
CN210816946U (en) * 2019-10-29 2020-06-23 昆山仁之杰精密电子组件有限公司 Scrap-jumping-preventing trimming die
CN212238810U (en) * 2020-04-02 2020-12-29 江苏中关村嘉拓新能源设备有限公司 Battery pole piece die cutting die
CN213165813U (en) * 2020-07-21 2021-05-11 浙江凯立特医疗器械有限公司 High-precision calibration implantable biosensor electrode cutting equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003168775A (en) * 2001-12-03 2003-06-13 Ueno Seiki Kk Apparatus and method for cutting lead electrode of semiconductor device
CN104815893A (en) * 2015-05-14 2015-08-05 东莞市亿鑫丰精密机械设备科技有限公司 Pole piece punching device
CN210816946U (en) * 2019-10-29 2020-06-23 昆山仁之杰精密电子组件有限公司 Scrap-jumping-preventing trimming die
CN210731626U (en) * 2019-11-08 2020-06-12 武汉安泰能科技有限公司 Pole piece cutting device for lithium battery processing
CN212238810U (en) * 2020-04-02 2020-12-29 江苏中关村嘉拓新能源设备有限公司 Battery pole piece die cutting die
CN213165813U (en) * 2020-07-21 2021-05-11 浙江凯立特医疗器械有限公司 High-precision calibration implantable biosensor electrode cutting equipment

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