KR102167449B1 - A secondary battery battery electrode film winding yaw shaft having a protruding core holding member - Google Patents

Abstract

The present invention relates to a battery electrode film winding shaft with a protruding core holding device. More specifically, the present invention relates to the battery electrode film winding shaft with the protruding core holding device, which has a structure in which a sliding core proceeds to the outside while pushing up a lug when air pressure is injected so that a core where a secondary battery electrode film is wound around the outer circumferential surface can be fixated to the winding shaft, and the sliding core is returned to its original state by being pushed by an elastic member and the lug is also restored when the air pressure is not injected. Therefore, the winding shaft can be used for winding and fixating a number of secondary battery electrode films, which requires high tension, and also can prevent damage caused by inflow of dust or foreign substances generated after cutting the secondary battery electrode film.

Description

A secondary battery battery electrode film winding yaw shaft having a protruding core holding member}

The present invention relates to a protruding core holding device battery electrode film winding shaft capable of easily fixing an electrode film wound around an outer periphery to a core according to whether or not air pressure is injected.

Typically, materials such as woven paper, film paper, and paper are wound around a cylindrical core. The core is fixed to the friction shaft when winding a material such as textile paper, film paper, paper, etc. to the core through an automated production line or when the material wound on the core is unwound and used.

Specifically, when the material is wound around the core, the core is fixed to the shaft so that the rotational force of the shaft is transmitted to the core, and when the material wound around the core is unwound, the core is fixed so that it can rotate idling without coming off the shaft. . The friction core uses friction force to fix the core to the shaft.

Such a core is a reusable product, and the winding object wound around the core is delivered to the customer, and the core is recovered and reused. However, when the current core is removed from the air shaft for fixing the core therein, the product weighs about 60kg, causing scratches inside the core, causing damage. In addition, when cutting with a slitter machine while the winding object mounted on the core is inserted into the air shaft, foreign substances accumulate on the piston of the air shaft and change the tension, causing damage. do.

On the other hand, a conventional friction shaft such as disclosed in Korean Registered Office No. 20-379171 moves a piston by blowing compressed air from an airhole of a central column, and the piston pushes the friction core to one side and a lug ) Protrudes in the radial direction and rubs against the core. In addition, if compressed air is not released, the lugs are retracted and friction with the core is released. However, this friction shaft has a structure in which the lug protrudes when blowing compressed air and comes into contact with the core, and the air pressure of the compressed air may become unstable while the core is rolling. This causes the core to become a friction shaft. Can slip against.

In addition, in the friction shaft, a piston housing with a piston interposed therebetween and a friction core with a lug interposed therebetween are arranged in a row in the width direction of the core, so that the number of lugs disposed in the width direction of the core is limited. Therefore, the frictional force between the core and the friction shaft is not sufficient, so that the core is likely to slide against the friction shaft, and in particular, when the core is short, the probability of slipping is even greater.

In addition, in the case of a conventional'friction shaft' disclosed in Korean Patent Publication No. 10-1232728, a lug is protruded by a spring, and the protruded lug has a structure having a shape that returns to its original state when air pressure is provided.

However, such a conventional technique requires a greater tension as the more the fabric to be wound is wound, but the structure has a structure that cannot be used for winding of such a high tension force, and is used only for storage power, and its use is limited.

That is, since the lug for fixing the core is protruding by the spring, the fixing force is weak, and the air pressure for returning it is inevitably weak, and even in the case of the protruding lug, only a portion of the lug protrudes to the outside. It is an invention that is easy to use when there are not many fabrics to be wound.

In addition, a ring-shaped lug may be used in addition to the circular lug for fixing the core, but in this case, there is a problem that it is vulnerable to dust inflow around the ring-shaped lug.

Accordingly, there is an urgent need to develop a winding shaft capable of easily fixing a core even when winding a high tensile force without causing such a problem.

Korean Patent Registration No. 10-1232728 (registered on Feb. 6, 2013)

The present invention has been conceived to solve the above problems, and an object of the present invention is a structure that can be used for a large amount of winding with high tension by reliably fixing a core on which a secondary battery battery electrode film is wound to a winding shaft When the core is to be fixed, the core is fixed by protruding a number of lugs outward through pneumatic pressure, and when pneumatic pressure is not applied, the sliding core that protrudes the lugs by the elastic member returns to its original shape. In addition, it is composed of a structure that returns to its original position, and can be used to wind up a large amount of secondary battery battery electrode films due to high tension, and a protruding core holding device with an improved structure to prevent problems caused by dust inflow. It is about the shaft.

Other objects and advantages of the present invention will be described below, and will be understood by examples of the present invention. Further, the objects and advantages of the present invention can be realized by means and combinations shown in the claims.

The present invention is a means for solving the above problems,

A piston core 10 in which a plurality of pistons 13 mounted along a circumferential surface on both side surfaces protrude to the outside by air pressure injected through the inlet line 11 formed in the inner circumference; A ring-shaped support portion (20) mounted on both sides of the piston core (10) and forming stepped jaws of the first and second stages (21, 22) on the outer periphery; A plurality of lug cores 30 formed on the outer periphery of the plurality of core holding devices 31 and spaced apart from the outer periphery of the support portion 20; Doedoe mounted between the lug core 30 and the support portion 20, the inner circumferential fitting portion 41 is a ring shape that is mounted corresponding to the first end 21 of the support portion 20, the outer circumference toward one side A plurality of downward slopes are formed so that the first oblique surface 42 corresponds to the core holding hole 31, and when the piston 13 protrudes, a plurality of sliding movements sliding to one side on the upper surface of the first end 21 Core 40; Correspondingly mounted to the core holding hole 31, the second diagonal surface 51 corresponding to the first diagonal surface 42 is formed on the bottom surface, but when the sliding core 40 moves forward, the sliding core 40 ) As the front side 43 is inserted into the bottom, it rises to the outside from the core holding hole 31, so that the top surface protrudes from the outer circumference of the lug core 30, and is mounted on the outer circumference of the secondary battery battery electrode film. (F) a plurality of fixing lugs 50 for fixing the core (C) to be wound; It characterized in that it comprises a.

As described above, the present invention has an effect that can be used in various ways for high tension that can be used even for winding electrode films of a large amount of secondary batteries.

In addition, in the present invention, the lug protrudes when air pressure is injected to fix the core, and when the air pressure is released by injection, the sliding core is returned to its original position by the elastic member, and the lug can be used with high tension.

In addition, in the present invention, even if an object to be wound is cut to a set width by a slitter while the core is mounted, a foreign material generated during cutting accumulates on the surface of the winding sharp and the tension is changed, thereby causing damage or a foreign material. It is a structure that does not cause problems caused by flowing into the winding shaft.

1 is a view showing a protruding core holding unit battery electrode film winding shaft according to the present invention.
Figure 2 is a view of one embodiment showing a portion of the protruding core holding sphere battery electrode film winding shaft according to the present invention.
Figure 3 is a view of an embodiment showing a cross-sectional view of the protruding core holding sphere battery electrode film winding shaft according to the present invention.
Figure 4 is a view of an embodiment showing the operating structure of the protruding core holding sphere battery electrode film winding shaft according to the present invention.
5 is an enlarged view of a portion of FIG. 4.

Before describing various embodiments of the present invention in detail, it will be appreciated that the application is not limited to the details of configurations and arrangements of elements described in the following detailed description or illustrated in the drawings. The present invention may be implemented and practiced in different embodiments and may be performed in various ways. Also, the device or element orientation (eg "front", "back", "up", "down", "top", "bottom" The expressions and predicates used herein with respect to terms such as ", "left", "right", "lateral"), etc. are used only to simplify the description of the present invention, and related devices Or you may find that the element simply indicates or does not mean that it should have a specific orientation. Further, terms such as “first” and “second” are used in this application and the appended claims for purposes of explanation and are not intended to represent or imply any relative importance or spirit.

The present invention has the following features to achieve the above object.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

Looking at an embodiment according to the present invention is as follows.

A piston core 10 in which a plurality of pistons 13 mounted along a circumferential surface on both side surfaces protrude to the outside by air pressure injected through the inlet line 11 formed in the inner circumference; A ring-shaped support portion (20) mounted on both sides of the piston core (10) and forming stepped jaws of the first and second stages (21, 22) on the outer periphery; A plurality of lug cores 30 formed on the outer periphery of the plurality of core holding devices 31 and spaced apart from the outer periphery of the support portion 20; Doedoe mounted between the lug core 30 and the support portion 20, the inner circumferential fitting portion 41 is a ring shape that is mounted corresponding to the first end 21 of the support portion 20, the outer circumference toward one side A plurality of downward slopes are formed so that the first oblique surface 42 corresponds to the core holding hole 31, and when the piston 13 protrudes, a plurality of sliding movements sliding to one side on the upper surface of the first end 21 Core 40; Correspondingly mounted to the core holding hole 31, the second diagonal surface 51 corresponding to the first diagonal surface 42 is formed on the bottom surface, but when the sliding core 40 moves forward, the sliding core 40 ) As the front side 43 is inserted into the bottom, it rises to the outside from the core holding hole 31, so that the top surface protrudes from the outer circumference of the lug core 30, and is mounted on the outer circumference of the secondary battery battery electrode film. (F) a plurality of fixing lugs 50 for fixing the core (C) to be wound; It characterized in that it comprises a.

In addition, the sliding core 40 is provided so that the front side of the sliding core 40 is connected to the support 20 and a plurality of elastic members 60 along the circumferential surface, thereby providing pneumatic pressure to the piston 13 ) When the protruding operation, the elastic member 60 is compressed, and when the piston 13 returns to its original state because air pressure is not provided, the elastic member 60 on one side that was compressed when moving to the outside is returned to its original state, and the piston ( It is characterized in that it returns to the initial operating position toward the 13) side.

In addition, support portions 20 are formed on both sides of the piston core 10 so that the piston 13 protrudes forward and rearward when pneumatic pressure is provided, and the plurality of sliding cores 40 mutually support the support portions 20. When the core (C) is installed opposite to each other and operated together, the plurality of sliding cores (40) are moved in a direction away from each other when the core (C) is fixed, and when the core (C) is not fixed, the plurality of sliding cores (40) are It is characterized in that it moves in a direction closer to each other and simultaneously operates.

In addition, a ring-shaped ball core 70 installed on one side of any one of the plurality of lug cores 30; Is further provided, and the ball core 70 is such that the ball 72 is mounted in the plurality of ball mounting holes 71 of the outer periphery, so that the core (C) on which the secondary battery battery electrode film (F) is wound has a length It is characterized in that it can move smoothly toward the direction.

In addition, the fixing lug 50 forms a contact piece 52 at a preset height on the upper surface, but the contact piece 52 is completely protruded upward when the sliding core 40 advances, so that a large amount of It is characterized in that the secondary battery battery electrode film (F) is wound so that it can be used when high tension is required.

Hereinafter, a protruding core holding device battery electrode film winding shaft according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

The protruding core holding device battery electrode film winding shaft (hereinafter, referred to as the winding shaft 100 for convenience of description) according to the present invention has a plurality of lengths on the outer periphery of the rotating shaft 80 for transmitting air pressure and rotational force. It is a structure that is continuously mounted and coupled toward the direction, and by reliably fixing the core (C) on which the secondary battery battery electrode film (F) is wound around the outer periphery to the outer periphery of the winding shaft 100, To allow the secondary battery battery electrode film (F) to be easily wound around the periphery, the piston core 10, the piston 13, the support part 20, the lug core 30, the sliding core 40, and fixed It includes a lug 50 and a ball core 70.

First of all, all the configurations to be described below have a ring shape through which the center is, of course, because the rotation shaft 80 is fitted and fixed in the center.

The piston core 10 is configured in a ring shape, and an inlet line 11 is recessed in the center of the inner circumference so that air pressure supplied to the rotation shaft 80 inserted in the center is introduced, and such an inlet line 11 ) It has a structure in communication with a plurality of piston mounting holes 12 in which the piston 13 to be described later is mounted.

The piston 13 communicates with the inlet line 11 on the inner circumferential surface at the front and rear surfaces of the above-described piston core 10 and is mounted in a piston mounting hole 12 that is protruded to the front and rear surfaces.

Thus, the piston 13 is mounted to be spaced apart from each other toward the circumferential surface from the front and rear sides of the piston core 10, when the air pressure supplied from the rotary shaft 80 flows into the inlet line 11, such Due to the pneumatic pressure, a plurality of pistons 13 protrude outward from the front and rear surfaces of the piston core 10.

Of course, in order to provide air pressure to the inlet line 11, the rotary shaft 80 must have a moving path through which air pressure is moved, and an outlet for discharging it to the outside is also formed at the outer periphery, When the rotation shaft 80 is mounted in the center of the piston core 10, it will be natural that the outlet of the rotation shaft 80 must be mounted at a position corresponding to the inlet line 11.

The support part 20 is formed on each of the both sides of the piston core 10 described above, forms stepped jaws of the first and second stages 21 and 22 on the outer periphery, and is mounted in a ring shape with a'┘' cross section. .

The inner diameter of the support part 20 is the same as the inner diameter of the piston core 10, but the thickness is smaller than that of the piston core 10, so that the sliding core 40, which will be described later, is mounted on the outer periphery of the support part 20. Make it a form that can be used.

Accordingly, the thickness of the second end 22 is thicker than that of the first end 21 so that it protrudes further from the outer periphery. In addition, the support part 20 is such that the cover plate 23 is installed on the front side (one side of the second end 22).

The lug core 30 is installed in a form spaced apart from the support part 20 on the outside of the support part 20 described above, and a plurality of core holding holes 31 are formed to be spaced apart from each other around the outer periphery, thereby forming a depression. To be.

The sliding core 40 has a ring shape, but is positioned between the lug core 30 and the support 20 described above, so that a cross section such as'┌' is provided to correspond to the outer periphery of the support 20 Have a form

Accordingly, in the sliding core 40, the fitting part 41 protruding from the inner periphery corresponds to the first end 21 of the support part 20 and is fitted.

In addition, the outer periphery forms a first oblique surface 42 that gradually slopes downward toward the outside of the core C, and air pressure is injected through the rotary shaft 80 so that the piston 13 protrudes (winding shaft (100) In the case of fixing the core (C) fitted to the outer periphery.), while sliding from the inside to the outside from the top of the first stage 21, the front side 43 in the sliding movement direction is the second stage ( 22) It has a structure that slides on the outer periphery and a part is raised.

In addition, in the sliding core 40, the front side 43 of the sliding core 40 is connected to the support 20 (more specifically, the cover plate 23) and a plurality of elastic members 60 along the circumferential surface. By being installed, air pressure is provided so that when the piston 13 protrudes, the elastic member 60 is compressed, and when the piston 13 returns to its original state because the air pressure is not provided (winding shaft 100, etc. When the core (C) fitted to the periphery is not fixed.), while the elastic member 60 on one side, which was compressed when moving outward, returns to its original state, the sliding core 40 is pushed toward the piston 13, and the piston 13 And the sliding core 40 is to be returned to the initial operating position.

In the present invention, as can be seen from the drawings, support portions 20 are formed on both sides of the piston core 10 so that the piston 13 protrudes forward and backward when air pressure is provided, and the plurality of sliding cores 40 Are installed opposite to each other with the mutual support part 20 interposed therebetween, and have a structure in which mutual operation is performed together. That is, when pneumatic pressure is provided, the sliding core 40 on the right side of the support part 20 slides toward the front in a form away from the piston 13, and the sliding core 40 on the left side of the support part 20 also moves away from the piston 13. The two sliding cores 40 are moved in a direction away from each other when the core (C) is fixed, and when the core (C) is not fixed, the two sliding cores (40) Is moving in the direction of getting closer to each other.

The fixing lug 50 is fitted in correspondence to each core holding hole 31 of the lug core 30 described above, and a second diagonal surface corresponding to the first diagonal surface 42 of the outer periphery of the sliding core 40 It is a constituent product in the shape of a circular plate forming 51 on the bottom surface.

When the sliding core 40 is not advanced, most of the fixing lug 50 is in close contact with the core holding hole 31, but a portion of the front side 43 (cover plate 23 side) of the bottom surface is Locally positioned on the outer periphery of the second stage 22, the upper surface is on the same horizontal line as the outer periphery of the lug core 30 (or the winding shaft 100 of the present invention such as the piston core 10). Have a structure that makes up

However, when the sliding core 40 moves forward, the front side 43 of the sliding core 40 is inserted from the second end 22 to the bottom surface, and is inserted between the fixing lug 50 and the second end 22 Since it comes in, the fixing lug 50 is lifted to the top and raised and lowered, so that the upper surface of the fixing lug 50 protrudes more outward than the outer circumference of the lug core 30, and is inserted into the outer circumference 2 It is possible to more reliably fix the core C on which the rechargeable battery electrode film F is wound.

Of course, a magnetic material is provided inside the first diagonal surface 42 of the sliding core 40 to be mounted in close contact with the fixing lug 50, and the fixing lug 50 is formed of a metal material that can be magnetically adhered to the magnetic body. So that they can be closely adhered to each other.

In addition, the fixing lug 50 forms a contact piece 52 at a preset height on the upper surface in close contact with the inner circumferential surface of the core (C), but when the sliding core 40 advances, the entire contact piece 52 Is completely protruded to the top, so that a large amount of the secondary battery battery electrode film (F) is wound up so that it can be used in the case of fixing the core (C) requiring high tension.

The ball core 70 is a ring-shaped configuration installed on one side of each of the sliding cores 40 on both sides of the piston core 10 described above, and the ball core 70 has a plurality of mounting holes at the outer periphery. The ball 72 is mounted rotatably and interchangeably, so that the core (C) on which the secondary battery battery electrode film (F) is wound can move smoothly in the longitudinal direction (after winding is completed, the protruding core holding hole battery In the electrode film winding shaft 100, when the secondary battery battery electrode film F is to be taken out of the wound core (C), etc.).

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the technical field to which the present invention pertains. It goes without saying that various modifications and changes are possible within the equivalent range of the claims to be described.

10: piston core 11: inlet line
12: piston mounting hole 13: piston
20: support 21: first stage
22: second stage 23: cover plate
30: lug core 31: core holding hole
40; Sliding core 41: fitting
42: first oblique surface 43: front side
50: fixing lug 51: second oblique surface
52: contact piece 60: elastic member
70: ball core 71: ball mounting hole
72: ball 80: rotating shaft
100: winding shaft
C: Core F: Secondary battery battery electrode film

Claims (5)

A piston core 10 in which a plurality of pistons 13 mounted along a circumferential surface on both side surfaces protrude to the outside by air pressure injected through the inlet line 11 formed in the inner circumference;
A ring-shaped support portion (20) mounted on both sides of the piston core (10) and forming stepped jaws of the first and second stages (21, 22) on the outer periphery;
A plurality of lug cores 30 formed on the outer periphery of the plurality of core holding devices 31 and spaced apart from the outer periphery of the support portion 20;
Doedoe mounted between the lug core 30 and the support portion 20, the inner circumferential fitting portion 41 is a ring shape that is mounted corresponding to the first end 21 of the support portion 20, the outer circumference toward one side A plurality of downward slopes are formed so that the first oblique surface 42 corresponds to the core holding hole 31, and when the piston 13 protrudes, a plurality of sliding movements sliding to one side on the upper surface of the first end 21 Core 40;
Correspondingly mounted to the core holding hole 31, the second diagonal surface 51 corresponding to the first diagonal surface 42 is formed on the bottom surface, but when the sliding core 40 moves forward, the sliding core 40 ) As the front side 43 is inserted into the bottom, it rises to the outside from the core holding hole 31, so that the top surface protrudes from the outer circumference of the lug core 30, and is mounted on the outer circumference of the secondary battery battery electrode film. (F) consists of a plurality of fixing lugs 50 to fix the core (C) to be wound; including,
The sliding core 40 is provided so that the front side of the sliding core 40 is connected to the support 20 and a plurality of elastic members 60 along the circumferential surface, thereby providing pneumatic pressure so that the piston 13 protrudes. During operation, the elastic member 60 is compressed, and when the piston 13 returns to its original state because air pressure is not provided, the elastic member 60 on one side that was compressed when moving to the outside is returned to its original state, and the piston 13 side To return to the initial operating position,
Support portions 20 are formed on both sides of the piston core 10 so that the piston 13 protrudes forward and rearward when pneumatic pressure is provided, and the plurality of sliding cores 40 interpose the support portions 20 between each other. The plurality of sliding cores 40 are moved in a direction away from each other when the core (C) is fixed, and when the core (C) is not fixed, the plurality of sliding cores 40 are close to each other. Simultaneous operation moving in the losing direction,
A ring-shaped ball core 70 installed on one side of one of the plurality of lug cores 30 is further provided, and the ball core 70 is provided with a ball 72 in the plurality of ball mounting holes 71 of the outer periphery. ) To be mounted so that the core (C) on which the secondary battery battery electrode film (F) is wound can move smoothly in the longitudinal direction,
The fixing lug 50 forms a contact piece 52 with a preset height on the upper surface, and the contact piece 52 is completely protruded to the top when the sliding core 40 moves forward, and a large amount of secondary A protruding core holding unit battery electrode film winding shaft, characterized in that the battery electrode film (F) is wound so that it can be used when high tension is required.
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