CN206379408U - A kind of slicer and chopper and slicer for lithium battery diaphragm - Google Patents

Abstract

The utility model discloses a kind of slicer and chopper and slicer for lithium battery diaphragm, it is related to lithium battery diaphragm process equipment field.The utility model is disclosed to be used for the crop on the slicer of lithium battery diaphragm by setting special construction, crop includes connector, the briquetting for compressing lithium battery diaphragm, tubular cutting knife and the first pressure cylinder and the second pressure cylinder for compressing lithium battery diaphragm being sheathed on outside cutting knife, and briquetting is arranged on inside cutting knife；When cutting, briquetting and the second pressure cylinder compress barrier film respectively, so that the area that cuts of barrier film is in and tightens straight condition, it ensure that when cutting knife is cut to it, the phenomenons such as curling, burr will not occur for the otch of barrier film, the complete and regular shape of resulting barrier film is ensure that, is that follow-up scientific research is provided convenience.

Description

A slicer and slicer for lithium battery diaphragm

technical field

The utility model relates to the field of lithium battery diaphragm processing equipment, in particular to a slicing machine and slicing equipment for lithium battery diaphragms.

Background technique

At present, with the promotion of green energy and the popularization of small digital devices, lithium-ion batteries have been widely used. Lithium-ion batteries have the advantages of low self-discharge efficiency, no memory effect, and environmental protection. In the experimental research of lithium-ion batteries, the separator is a necessary material for the assembly of lithium-ion batteries. Usually, the diaphragm needs to be cut to obtain a regular shape such as a circular diaphragm. However, the edge of the regular diaphragm cut by the existing diaphragm slicer has irregularities such as burrs and curls, which brings inconvenience to further research and use.

Utility model content

The purpose of the utility model is to provide a slicer for lithium battery diaphragm, which can cut the diaphragm and avoid burrs and curls on the edge of the cut diaphragm.

Another object of the present invention is to provide a slicing device, which can cut the diaphragm and avoid burrs and curls on the edge of the cut diaphragm.

The utility model is achieved in that:

A slicing machine for a lithium battery diaphragm, which includes: a base, a support table fixedly installed on the base, and a final shaft, one end of the final shaft extends into the support table and is slidably connected with the support table, and the support table is provided with a device for driving The driving mechanism for the finale to move up and down;

The bottom end of the final shaft is provided with a cutting head, which includes a connector, a pressing block for pressing the lithium battery diaphragm, a cylindrical cutting knife, and a first pressing cylinder sleeved outside the cutting knife and used for pressing The second pressure cylinder of the lithium battery diaphragm;

The connecting head is connected to the pressing shaft, the pressing block is arranged inside the cutter and connected to the bottom end of the connecting head through the first return spring, the upper edge of the first pressing cylinder is connected to the connecting head, and the lower edge of the first pressing cylinder is arranged along the circumferential direction There is an accommodating groove for accommodating the second pressure cylinder, the accommodating groove extends along the axis direction of the first pressure cylinder, the upper edge of the second pressure cylinder extends into the accommodating groove and passes through the second return spring and the accommodating groove top wall connection;

The position corresponding to the cutting head on the base is provided with a top platform that cooperates with the pressure block and an annular boss that surrounds the top platform and cooperates with the second pressure cylinder. There is an annular gap for the cutting edge of the cutting knife to extend in between.

Further, in a preferred embodiment of the present invention, the drive mechanism includes a transmission shaft and a drive arm, the transmission shaft supports the platform and is rotatably connected with the support platform, the transmission shaft is provided with a gear at the position inside the support platform, and the side wall of the final shaft A rack matched with the gear is arranged along the axial direction of the finale shaft, and the driving arm is connected with the end of the transmission shaft outside the supporting platform.

Further, in a preferred embodiment of the present invention, the axis of the driving arm is perpendicular to the axis of the transmission shaft.

Furthermore, in a preferred embodiment of the present invention, a guide cylinder is provided inside the supporting platform, the guide cylinder is sleeved on the outside of the final shaft, and the outer wall of the guide cylinder is provided with an opening for the rack to move.

Further, in a preferred embodiment of the utility model, the inner side wall of the guide cylinder is symmetrically provided with guide grooves, and the outer side wall of the final shaft is provided with guide wheels matching with the guide grooves, and the guide wheels are placed in the guide grooves.

Further, in a preferred embodiment of the present invention, the end of the final shaft located in the guide cylinder is connected to the guide cylinder through a fourth return spring.

Further, in a preferred embodiment of the present utility model, a push rod and a groove for accommodating the push rod are arranged in the top platform, and the push rod is placed in the groove and passed through the third return spring and the bottom wall of the groove. connect.

Further, in a preferred embodiment of the present invention, the lower edge of the second cylinder is provided with a washer for preventing dislocation of the lithium battery diaphragm.

Further, in a preferred embodiment of the present invention, the cutting edge is in a wave shape, a zigzag shape or a triangle shape.

A slicing device, which includes any one of the above-mentioned slicing machines for lithium battery separators.

Compared with the prior art, the beneficial effects of the slicing machine and slicing equipment for the lithium battery diaphragm of the present invention are:

The slicing machine for the lithium battery diaphragm provided by the utility model, when cutting, through the setting of the briquetting block, the first pressing cylinder and the second pressing cylinder, when cutting, the briquetting block and the second pressing cylinder can be cut at the first The function of the first return spring and the second return spring presses the diaphragm, so that the cutting area of the diaphragm is in a state of tension and straightening, ensuring that when the cutter cuts it, the incision of the diaphragm will not be curled, burrs, etc. , which ensures the integrity and regular shape of the obtained diaphragm, and provides convenience for subsequent scientific research.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

FIG. 1 is a schematic diagram of the external structure of a slicer for a lithium battery diaphragm provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the internal structure of a slicer for a lithium battery diaphragm provided by an embodiment of the present invention;

Figure 3 is an enlarged view of A in Figure 2;

Fig. 4 is a structural schematic diagram of an annular boss of a slicer for a lithium battery diaphragm provided by an embodiment of the present invention;

Fig. 5 is a structural schematic diagram of a first viewing angle of a cutter of a slicer for a lithium battery diaphragm provided by an embodiment of the present invention;

Fig. 6 is a schematic diagram of the VI-VI sectional structure of Fig. 5;

FIG. 7 is a structural schematic diagram of a second viewing angle of a cutting knife of a slicer for a lithium battery separator provided by an embodiment of the present invention.

Icons: 100-slicing machine; 110-base; 120-support table; 130-finale; 140-driving mechanism; 141-transmission shaft; 142-driving arm; 143-gear; 144-guiding cylinder; 145-opening; 146 -Guide groove; 147-rack; 150-cut head; 151-connector; 152-briquetting block; 153-cutter; 154-cutting edge; - the first return spring; 158-accommodating groove; 159-the second return spring; 160-top platform; 161-annular boss; 162-annular gap; Spring; 166—the fourth return spring.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "vertical", "horizontal", "inner" and "outer" are based on the drawings. The orientation or positional relationship shown, or the orientation or positional relationship that the utility model product is usually placed in use, is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific Orientation, construction and operation in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Example

Please refer to FIG. 1 , the slicer 100 for lithium battery diaphragm provided in this embodiment includes:

The base 110, the support platform 120 fixedly installed on the base 110 and the finale 130, one end of the finale 130 extends into the support 120 and is slidably connected with the support 120, and the support 120 is provided with a mechanism for driving the finale 130 to move up and down. drive mechanism 140 .

Please continue to refer to FIG. 1 and refer to FIG. 2 and FIG. 3 , the bottom end of the final shaft 130 is provided with a cutting head 150, the cutting head 150 includes a connecting head 151, a pressing block 152 for pressing the lithium battery diaphragm, a cylindrical The cutter 153 , and the first pressing cylinder 155 sheathed outside the cutting knife 153 and the second pressing cylinder 156 for compressing the lithium battery diaphragm. The interior of the cutter 153 is hollow (as shown in FIG. 3 and FIG. 5 ), and its cross section is circular. The end of the cutter 153 near the base 110 is a sharp cutting edge 154 , which can be used to cut the diaphragm.

The connecting head 151 is connected to the pressure shaft 130 , and the pressing block 152 is disposed inside the cutter 153 and connected to the bottom end of the connecting head 151 through a first return spring 157 . The upper edge of the first pressure cylinder 155 is connected to the connection head 151 , and the lower edge of the first pressure cylinder 155 is provided with a receiving groove 158 for accommodating the second pressure cylinder 156 along the circumferential direction.

The accommodating groove 158 extends along the axial direction of the first pressing cylinder 155, and the upper edge of the second pressing cylinder 156 stretches into the accommodating groove 158 and is connected with the top wall of the accommodating groove 158 by the second return spring 159 (as shown in FIG. 3 shown).

A top platform 160 cooperating with the pressure block 152 and an annular boss 161 surrounding the top platform 160 and cooperating with the second pressing cylinder 156 are provided on the base 110 corresponding to the position of the cutting head 150 . There is an annular gap 162 (as shown in FIG. 3 and FIG. 4 ) between the outer peripheral surface of the top platform 160 and the inner peripheral surface of the annular boss 161 for the cutting edge portion 154 of the cutting knife 153 to penetrate.

The existing slicing machine 100 mainly punches out the required shape of the diaphragm from a large piece of diaphragm through the principle of stamping. Then, during the stamping process, due to the certain elasticity of the diaphragm, when the punch on the slicing machine 100 acts on the diaphragm , the fracture on the diaphragm is prone to a certain degree of stretching (similar to the situation of tearing tape by hand), and then burrs and curls appear.

However, the working principle of the slicer 100 provided by the present utility model to avoid burrs and curls in the incision of the diaphragm during cutting is as follows.

When working, the lithium battery diaphragm is placed on the annular boss 161, the driving mechanism 140 drives the final shaft 130 to go down, the cutting head 150 also moves downward at the same time, and the lower edge of the second pressing cylinder 156 presses the diaphragm (which will be connected with the second pressing cylinder) 156 heads) act on the annular boss 161, and the briquetting block 152 also presses down the diaphragm and acts on the top platform 160 simultaneously. As the pressure shaft 130 continues to descend, the first return spring 157 and the second return spring 159 are compressed. According to the principle of action force and reaction force, the second pressure cylinder 156 and the pressure block 152 further press the diaphragm, so that the diaphragm is pressed The area between the areas pressed by the block 152 (hereinafter referred to as the trimming area) is in a state of tension and straightening.

The pressing shaft 130 continues to descend, and the cutting knife 153 protrudes from the second pressing cylinder 156, and its cutting edge portion 154 acts on the cutting area of the diaphragm to cut it. Because the whole cutting area is in a stretched state, therefore, in the process of cutting, the cutting knife 153 can cut it easily, and the cutting area in the state of being stretched will not be stretched when it is cut. Stretching phenomenon, thereby avoiding the burrs and curling of the cut edge of the diaphragm.

On the basis of the above structure, in order to further improve the cutting effect, the inventor of the utility model designed the cutting edge portion 154 of the cutting knife 153 into a triangle (that is, the longitudinal section of the cutting edge portion 154 is a triangular structure), or understood as a cutting edge. Portion 154 is a beveled structure (as shown in Figures 6 and 7) with a pointed end. When it cuts the cutting area of the diaphragm, at first the sharp end on the cutting edge part 154 acts on the diaphragm to cut a small opening, and then as the final shaft 130 continues to descend, the cutting edge part 154 slowly Cut it along the circular path of the cutting area, and finally cut out a regular and circular diaphragm.

The cutting edge portion 154 designed with such an inclined plane structure cuts and splits the cutting area evenly and slowly when cutting the cutting area of the diaphragm. And the cutting edge portion 154 of the flat end structure cuts and fractures the cutting area instantaneously, rapidly and simultaneously.

In this way, it is easy to understand that, compared with the cutting edge portion 154 having a flat end structure, the cutting edge portion 154 of the bevel structure cuts and breaks the cutting area uniformly and slowly, which can well avoid curling and burring of the cut.

It should be noted that, in other embodiments, the structure of the cutting edge portion 154 may also be wavy or zigzag. The cutting edge portion 154 of these two structures is not to cut off the cutting zone of the membrane at one time, but to cut off the cutting zone of the membrane slowly along with the descending of the pressure shaft 130, therefore, both have the function of preventing curling. , Play the role of burrs.

In addition, when the lower edge of the second pressing cylinder 156 presses the diaphragm, the diaphragm is easily dislocated. In order to prevent dislocation, in this embodiment, the lower edge of the second pressing cylinder 156 is provided with a washer (not shown) for preventing the diaphragm from displacing. . The gasket can be made of a material with a certain coefficient of friction, or rubber and other materials. When the gasket acts on the diaphragm, it can better hold the gasket and prevent it from sliding or misalignment.

In addition, in this embodiment, the driving mechanism 140 includes a transmission shaft 141 and a driving arm 142 (as shown in FIG. 3 ), the transmission shaft 141 supports the platform 120 and is rotationally connected with the support platform 120 , and the transmission shaft 141 is located in the interior of the support platform 120 A gear 143 is provided at the position, and the side wall of the finale shaft 130 is provided with a rack 147 cooperating with the gear 143 along the axial direction of the finale shaft 130 . Through the cooperation of the gear 143 and the rack 147, the user can convert the movement in the circumferential direction into the linear movement of the final shaft 130 in the vertical direction when cutting, which has the characteristics of labor saving and easy operation.

In this embodiment, the axis of the driving arm 142 is perpendicular to the axis of the transmission shaft 141 . This design structure can increase the torque and achieve the effect of labor saving. Of course, in other embodiments, the axis of the driving arm 142 and the axis of the transmission shaft 141 may also intersect or coincide.

Of course, the support table 120 is provided with a guide cylinder 144 , the guide cylinder 144 is sheathed outside the final shaft 130 , and the outer wall of the guide cylinder 144 is provided with an opening 145 for the rack 147 to move (as shown in FIG. 3 ). The inner wall of the guide cylinder 144 is symmetrically provided with guide grooves 146 , and the outer wall of the final shaft 130 is provided with guide wheels (shown in the figure) that match the guide grooves 146 , and the guide wheels are placed in the guide grooves 146 . Through the function of the symmetrically arranged guide grooves 146 and the guide wheels, it can be ensured that the pressing shaft 130 will not rotate along the circumferential direction when sliding up and down in the guide cylinder 144 to avoid misalignment.

In addition, the end of the final shaft 130 located in the guide cylinder 144 is connected to the guide cylinder 144 through the fourth return spring 166 . When the user selects the drive arm 142, the finale shaft 130 goes down (the fourth return spring 166 is in a stretched state), and after the diaphragm is cut, the drive arm 142 is released, the fourth return spring 166 contracts, and the finale shaft 130 is pulled to go up, cutting the end 150 is separated from the annular boss 161, the final shaft 130 returns to the non-working position, and the user can remove the cut circular diaphragm from the top platform 160 for scientific research.

Further, in order to facilitate the removal of the diaphragm from the top platform 160, in this embodiment, the top platform 160 is provided with a push rod 163 and a groove 164 for accommodating the push rod 163, and the push rod 163 is placed in the groove 164 Inner and connected to the bottom wall of the groove 164 through the third return spring 165 (as shown in FIG. 3 ).

When cutting, the push rod 163 is pushed down by the briquetting block 152 and shrinks in the groove 164. After the cutting is finished, the push rod 163 stretches out from the groove 164 under the action of the third back-moving spring 165. The cut diaphragm is lifted up for easy use and removal.

In addition, this embodiment also provides a slicing device, which includes the above-mentioned slicing machine 100 for lithium battery separators.

To sum up, when cutting the slicer 100 for lithium battery separator provided in this embodiment, through the setting of the pressing block 152, the first pressing cylinder 155 and the second pressing cylinder 156, when cutting, the cutting of the diaphragm The region is in a state of tension and straightening, which ensures that when the cutter 153 cuts it, the incision of the diaphragm will not be curled, burred, etc., ensuring the integrity and regular shape of the obtained diaphragm, and providing a solid foundation for subsequent scientific research. convenient.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A slicing machine for a lithium battery diaphragm, characterized in that it comprises: a base, a support platform fixedly mounted on the base and a final shaft, one end of the final shaft extends into the support platform and is connected to the The support table is slidably connected, and the support table is provided with a driving mechanism for driving the finale to move up and down; The bottom end of the pressing shaft is provided with a cutting head, and the cutting head includes a connecting head, a pressing block for pressing the lithium battery diaphragm, a cylindrical cutting knife, and a first pressure sleeve set outside the cutting knife. cylinder and a second pressure cylinder for compressing the lithium battery diaphragm; The connecting head is connected to the pressing shaft, the pressing block is arranged inside the cutter and connected to the bottom end of the connecting head through a first return spring, and the upper edge of the first pressing cylinder is connected to the connecting head. head connection, the lower edge of the first pressure cylinder is provided with an accommodating groove along the circumferential direction for accommodating the second pressure cylinder, the accommodating groove extends along the axial direction of the first pressure cylinder, the The upper edge of the second pressure cylinder extends into the accommodating groove and is connected with the top wall of the accommodating groove through a second return spring; The position corresponding to the cutting head on the base is provided with a top platform that cooperates with the pressing block and an annular boss surrounding the top platform and cooperating with the second pressure cylinder. There is an annular gap between the outer peripheral surface and the inner peripheral surface of the annular boss for the cutting edge of the cutting knife to extend into. 2. The slicer for lithium battery diaphragm according to claim 1, wherein the drive mechanism comprises a drive shaft and a drive arm, and the drive shaft is rotatably connected to the support table, The transmission shaft is provided with a gear at the position inside the support table, and the side wall of the final shaft is provided with a rack that cooperates with the gear along the axial direction of the final shaft, and the driving arm and the transmission shaft are located The ends outside the support table are connected. 3. The slicer for lithium battery separator according to claim 2, wherein the axis of the driving arm is perpendicular to the axis of the transmission shaft. 4. The slicing machine for lithium battery diaphragm according to claim 2, characterized in that, a guide cylinder is arranged inside the support table, the guide cylinder is sleeved outside the final shaft, and the outside of the guide cylinder The wall is provided with an opening for the movement of the rack. 5. The slicer for lithium battery diaphragm according to claim 4, characterized in that, the inner sidewall of the guide cylinder is symmetrically provided with guide grooves, and the outer sidewall of the final shaft is provided with guide grooves corresponding to the guide grooves. Cooperating guide wheels, the guide wheels are placed in the guide grooves. 6 . The slicer for lithium battery separator according to claim 4 , wherein the end of the pressing shaft located in the guide cylinder is connected to the guide cylinder through a fourth return spring. 7 . 7. The slicer for a lithium battery diaphragm according to any one of claims 1-6, wherein a push rod and a groove for accommodating the push rod are arranged in the top table, The push rod is placed in the groove and connected to the bottom wall of the groove through a third return spring. 8. The slicer for lithium battery separator according to any one of claims 1-6, characterized in that, the lower edge of the second pressing cylinder is provided with a washer for preventing dislocation of the lithium battery separator. 9. The slicer for lithium battery separator according to any one of claims 1-6, characterized in that, the cutting edge is wavy, zigzag or triangular. 10. A slicing device, characterized in that it comprises the slicing machine for lithium battery separator according to any one of claims 1-9.