JPS6270156A - Method of preventing metal foil from meandering after cutting, and device therefor - Google Patents

Abstract

PURPOSE:To prevent a metal foil from meandering, by passing a metal foil which is cut into a plurality of strip pieces by a slitter, while it is clamped between a pair of rollers one of which resiliently presses the other roller. CONSTITUTION:A metal foil 8a which has been cut into a plurality of strip pieces by a slitter is clamped between a pressing drive roller 3 and a driven roller 2, and is therefore allowed to pass in the direction of the arrow A. A spring 19 is compressed by rotating a nut 18 in a spring device 4 in order to apply a pressure in accordance with the thickness of the metal foil 8a. With this arrangement, it is possible to remove a fabricating strain at the cut edges of the metal foil 8a, and to prevent the same from meandering.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method and device for preventing meandering of metal foil after cutting, and in particular to a slitter for cutting a sheet metal foil used in electrolytic capacitors etc. into multiple strips of a required width. The present invention relates to a meandering prevention method and device that can prevent the metal foil from meandering with a simple configuration when the cut metal foil is wound up in a post-process.

BACKGROUND ART Conventionally, as shown in FIG. 9, a slitter for cutting a sheet-shaped metal foil 8 of aluminum, copper, etc. into a required width has blades 21 and spacers 22 alternately laminated, and a shaft 24 is attached to a shaft 24 by a nut 23. As shown in FIG. There are two types of Geher type slitter 41, each consisting of a blade body 32 and a blade member 33 disposed so as to be in pressure contact with the cutting blade member 31.

In the case of the Giyoung type slitter 40, the opposing blades 2
The thickness of the metal foil that can be cut is determined according to the clearance formed by 1, so when the thickness of the metal foil that you want to cut does not match the clearance, it is necessary to adjust the clearance, 25 requires a high degree of skill in terms of engagement and precision, and has the disadvantage that it is not easy to use and is not economical.

On the other hand, in the case of the Geher type slitter 41, the rotary blade body 32 is always in pressure contact with the blade member 33, so cutting can be performed immediately regardless of the thickness of the metal foil to be cut, resulting in good workability. This type of slitter is generally used.

However, as shown in FIGS. 5 and 6, the metal foil 8a cut by this Goebel type slitter 41 is bent at each of the cut ends of the plurality of strips due to processing strain caused by shearing, resulting in deformation of the cross section. are doing.

When the metal foil 8 in this state is wound up by a take-up roller, the metal foil 8 is cut into the required width as shown in FIG.
There are cases where problems such as meandering of the metal foils 8 and interference with each other, making it difficult to separate the windings, or the metal foil 8 being bent and winding from the machining distortion created at the cutting edge, may occur. However, this problem is particularly noticeable when the cutting width is made small.

Purpose The present invention has been made in order to eliminate the drawbacks of the prior art described above, and its purpose is to elastically move a metal foil cut into multiple strips by a slitter so that one roller can By passing the metal foil through the rollers while being pinched by a pair of rollers, the processing distortion caused at the cutting edge of the metal foil is removed, the metal foil is shaped into a flat cross section, and the metal foil is placed on a take-up roller. This is to prevent the cut metal foil from meandering and to allow it to run straight, and to ensure that the cut metal foil is wound separately, ensuring stable quality and improving work efficiency. The goal is to improve efficiency.

Configuration In short, the present invention (specific invention) is characterized in that a metal foil cut into multiple strips by a slitter is elastically pinched by a pair of rollers in which one roller is pressed against the other roller and passed through the rollers. Further, the present invention (second invention) is characterized in that a pair of rollers, one of which is elastically pressed against the other, are disposed in the post-slick process. It is.

The present invention will be explained below based on embodiments shown in the drawings. As shown in FIGS. 1 and 2, the meandering prevention device 1 according to the present invention includes an idle roller 2, which is an example of one roller, a pressure roller 3, which is an example of the other roller, and a spring device 4. The idle roller 2 is rotatably supported by a shaft 6 press-fitted into the main body 5 via a bearing device 7.

The processing roller 3 is supported by bearings 10 to which shaft portions 3a formed at both ends are rotatably pivoted, and a pressure base plate 12 to which the cough bearings are fixed with bolts 11.

The spring device 4 includes a pair of guide rods 13 screwed onto a pressure base plate 12 with nuts 14, a mounting plate 16 into which the guide rods are slidably inserted, and a mounting plate formed in the center of the mounting plate. A bolt 17 that is screwed into the threaded portion 16a, a nut 18 that is screwed onto the bolt, a compression spring 19 that is installed between the pressure base plate 12 and the nand 18, and a compression spring 19 that is press-fitted into the main body 5. It is equipped with a base 15 fixed to a shaft 20, and an idle roller 2.
The mounting plate 16 is fixed to the base 15 with bolts 30 so that the pressure roller 3 and the pressure roller 3 are in close contact with each other over the entire width in the left and right directions.

The idle roller 2 and pressure roller 3 shown in FIGS. 1 and 2 are made of rigid metal bodies and are pressed against each other by the elasticity of a compression spring 19, but as shown in FIGS. 3 and 4, In this case, the portion or the entirety of the idle roller 52 and the pressure roller 53 in contact with each other is replaced with a material made of urethane rubber, which is an example of an elastic material, and a compression spring 19 is used.
The metal foil 8 is moved by a pair of elastic rollers regardless of the
It may be configured to press the button.

Function The present invention is constructed as described above, and its function will be explained below. As shown in FIG. 2, the clamping force between the idle roller 2 and the pressure roller 3 is calculated by the elastic force generated when the compression spring 19 is deflected by rotating the toe 18.
As shown in FIG. The metal foil 8a that has been cut is passed through in the direction of arrow A while being pinched by a pair of rollers to remove processing strain caused by shearing during cutting and form a flat metal foil 8b (7th (see figure), and as a result, meandering of the metal foil is prevented.

Further, as an example using the meandering prevention device 1 according to the present invention, when aluminum foil with a thickness of 0.05n+ is cut into a width of 2 fl, the force pressing the pressure base plate 12 is 311 knots to 0.5 kg. Meandering of the aluminum foil after cutting could be prevented by this method, and a good quality product that was separately wound to a width of 2++n was obtained.

Furthermore, as an example using the meandering prevention device 1 according to the present invention in which a pair of rollers are formed of an elastic body, the idle roller 52 and the pressure roller 53 are each made of urethane rubber with an outer diameter of too mm and a hardness of HsA60, The clamping state in which the distance l between the axes of the idle roller 52 and the pressure roller 53 is adjusted to 98 mm is effective for preventing meandering of the metal foil after cutting and for maintaining good quality of the separated winding. Met.

Effects Since the present invention is configured and operates as described above, the metal foil cut into multiple strips by the slitter is elastically pinched by a pair of rollers, one of which is pressed by the other roller. Since the metal foil is passed through the roller while passing through the roller, it is possible to remove processing distortion that occurs at the cutting edge of the metal foil, and as a result, the metal foil is shaped into a flat metal foil, and the meandering of the metal foil that is placed on the take-up roller is eliminated. As a result, the metal foil can run straight, and the cut metal foil can be reliably rolled up separately, ensuring stable quality and improving work efficiency. It will be done.

[Brief explanation of drawings]

1 to 4 relate to embodiments of the present invention, FIG. 1 is a front view of the meandering prevention device, FIG. 2 is a right side view of the meandering prevention device shown in FIG. 1, and FIG. 3 is a meandering prevention device formed of an elastic body. 4 is a right side view of the pair of rollers shown in FIG. 3, FIG. 5 is a perspective view of the slitter and the metal foil being cut by the slitter, and FIG. A longitudinal sectional view of the main part of what is shown,
FIG. 7 is a perspective view showing the metal foil after passing through the meandering prevention device of the present invention, FIG. 8 is a perspective view showing the meandering state of the metal foil according to the conventional example, and FIG. 9 is a side view of the Guyang type slitter.
FIG. 10 is a partial vertical cross-sectional side view of the Gehel slitter. 1 is a meandering prevention device, 2.52 is an idle roller that is an example of one roller, 3.53 is a pressure roller that is an example of the other roller, 4 is a spring device, 8a is a metal foil after cutting, 40
．． 41 is a slitter. Patent applicant: JCC Engineering Co., Ltd.

Claims (1)

[Scope of Claims] 1 Cutting characterized in that a metal foil cut into a plurality of strips by a slitter is elastically pinched by a pair of rollers in which one roller is pressed by the other roller and passed through the rollers. How to prevent meandering of metal foil later. 2. An apparatus for preventing meandering of metal foil after cutting, characterized in that a pair of rollers, one of which is elastically pressed against the other, is disposed in a downstream process of a slitter. 3. According to claim 2, in the pair of rollers, one roller is formed of a rigid body, and the other roller is elastically pressed against the one roller by a spring device. The described device for preventing meandering of metal foil after cutting. 4. The meandering prevention device for cut metal foil according to claim 2, wherein both of the pair of rollers are made of an elastic body.