JP2605025Y2 - Metal sheet slitting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slitting device for a metal sheet, and more particularly, to a wavy generated at the outer ears of narrow metal sheets located at both ends of a plurality of slit metal sheets. The present invention relates to a thin metal sheet slitting device that prevents distortion and prevents variations in slit width dimensions.

[0002]

Conventionally, with respect to slit device of the sheet metal, as shown in FIG. 4 (A), (B) , ' one blade 8 and 9' are other blade pair of upper and lower slits blades 8,8 9 in which the positions are different from each other in the direction of the axis 3 by the thickness of the slit blade 9 from the position 9 (Japanese Patent Laid-Open No. 2-95).
No. 25) and FIGS. 5 (A) and 5 (B), the narrow metal sheets 18, 1, after being slit by the slit blades 8, 9.
A method of guiding the 8 'in a circumferential direction of the blades 8 and 9 using the abutment plates 22 and 23 is disclosed (JP-A-2-172617).

[0003]

However, the former is slit even when the narrow metal sheet 18 'is not required, and the number of blades used is uneconomical. In the latter case, the narrow metal sheets 18, 18 'and the corresponding plates 22, 23 slide relatively to each other, so that the surfaces of the narrow metal sheets 18, 18' may be scratched or a sheet having irregularities may be slit. There is a disadvantage that the effect of the plate is small and the apparatus becomes complicated.

It is an object of the present invention to provide a method in which a plurality of slit narrow metal sheets are provided outside the narrow metal sheets located at both ends.
An object of the present invention is to provide a slit device made of a thin metal plate that prevents wavy distortion occurring at an ear portion and prevents variations in slit width dimensions.

[0005]

In order to solve the above-mentioned problems, a first invention of the present application is to provide a pair of upper and lower metal shafts provided on a pair of rotating shafts arranged in parallel with each other at an axial interval. the blade, the slit device of the sheet metal to be cut into a plurality of Semahaba sheet metal, distributing outwardly from the outer corner of the opposite side of the cutting portion of the blade located on the outermost
One of the turns provided with the outermost blade
The other rotation axis provided on the other rotation axis parallel to the rotation axis.
With the ears of the sheet metal forward.
That is, a pressing member that presses against one of the rotating shafts is provided.

The second invention of the present application is the first invention of the present application,
An outer corner portion of the outermost blade and the holding portion
Inner corners of the sheet metal that contact the ears of the sheet metal
One of which is chamfered and the other has a corner
That is, it is formed in a shape .

[0007]

According to the present invention, the blade of the blade multiple, is provided with the pressing member to the outer side from the outer corner portion of the blade located on the outermost side, ear portions of the metallic thin plate is positioned on the outermost side The end portion of the ear is bent at the holding portion between the outer corner portion and the inner corner portion of the holding member so as to be bent, and tension is applied between the cutting portion of the blade and the holding portion to be slit. Therefore, no distortion occurs, and variations in slit width dimensions are prevented. Furthermore, of the outer corner portion of the outermost blade, or the inner corner portion of the holding member that comes into contact with the ear portion of the thin metal plate,
Since one is chamfered and the other forms a corner, the ear of the holding portion is sandwiched so that the corner of the holding member is bitten, and the ear is not broken and tension is generated.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an enlarged cross-sectional view of a main part of a metal sheet slitting device according to the present invention, FIG. 2 is a schematic cross-sectional view of the metal sheet slitting device according to the present invention, and FIG. It is a perspective view .

Referring to FIG. 2, a pair of rotating shafts 2 and 3 arranged in parallel with each other have spacers 10 and
A pair of upper and lower blades 8, 9 or 8, 8 via 0 'and 11
In addition, a holding member 14 is provided. Each of the pair of rotating shafts 2, 3 arranged in parallel with each other has a male screw portion 4, 4 at one end, respectively, and nuts 5, 5 are screwed therein.
Each of the nuts 5 and 5 has a plurality of female screws 6 on concentric circles.
6 are provided, and each female screw 6, 6 has a holding bolt 7, 7.
However, its head is screwed with the heads facing the spacers 10 'and 10'. Therefore, the parallel setting between the pair of blades 8, 9 or 8, 8 and the vertical setting between the blades 8, 9 and the rotating shafts 2, 3 can be performed by adjusting the nuts 5, 5 and the holding bolts 7, 7. It has become. With this configuration,
The thin metal sheet 17 is slit between a pair of blades 8 and 9 or between the blades 8 and 8 to be processed into a narrow metal sheet 18. In this embodiment, it is processed into six narrow metal sheets 18.

FIG. 1 is an enlarged sectional view of a main part near a pair of upper and lower blades 8 and 9 located on the outermost side in FIG. From the pair of upper and lower blades 8, 9 and blade 8, at least the blade thickness of blade 9
Pressing member 14 is provided via a spacer 11 of the phase equivalent to width. Outer corner 15 of blade 9 and holding member 1
The inner corner portion 15 'of 4 forms a holding portion 25 for holding the ear portion 19 at the time of slitting. The outer corner portion 15 of the blade 9 is slightly rounded, and the inner corner portion 15 'of the holding member 14 that forms a pair with this portion is formed at a right angle. With this configuration, the ear 19 is pressed against the rotating shaft side of the blade 9 as shown in the figure at the time of slitting.
Since the outer corner 15 of the blade 9 is rounded and the inner corner 15 'of the holding member 14 is a right angle, the ear 19 is bent. Is the inner corner 1 of the holding member 14
It is bent while being bitten into 5 'and does not break. Accordingly, tension is generated between the cutting portion 12 and the holding portion 25 in the same manner as the slit portion, and the outer edge portion 24 of the thin metal plate 17 is slit without generating distortion. In this embodiment, the outer corner portion 15 of the blade 9 is chamfered, but is not limited to this, and may be chamfered. For example, it may be chamfered at a polygon or 45 degrees. Further, the holding member 1
The inside corner portion 15 'of 4 is not limited to a right angle but may have any shape having a corner. Alternatively, the outer corner 15 of the blade 9 may be formed at a right angle, and the inner corner 15 ′ of the holding member 14 may be chamfered.

FIG. 3 shows a slittable metal sheet 17 according to the present invention, which is a special steel sheet obtained by applying a plurality of rows of resin or special metal 21 to a cold-rolled steel sheet having a thickness of 0.1 mm. A plurality of narrow metal sheets 18 can be formed by slitting a portion 20 to which no resin or special metal 21 is applied. With the use of the slit device of the present invention, the ears 19 of the narrow metal sheets 18 at both ends of the plurality of narrow metal sheets 18 do not generate wavy distortion, and as a result, the cutting width does not vary.

[0012]

According to the first invention of the present application, a tension is applied to the ear portion of the metal sheet at the time of slitting, distortion is not generated in the ear portion during the slit, and even after the slitting. Outer ear of narrow metal sheet
There is an effect that distortion does not occur in the portion and variation in the slit width dimension is prevented.

Further , the ear portion is sandwiched between the outer corner portion of the outermost blade and the inner corner portion of the holding member so that the end side of the ear portion is bent, and the cutting portion and the holding portion are sandwiched. This has the effect that the same tension as that of the slit portion is surely applied between the slit portion and the slit portion.

According to the present second invention, in addition to the effect <br/> results of the present first devised, ears between the inner corner of the outer corner portion and the pressing member of the blade located on the outermost side Since the other corner is sandwiched so as to be bitten, and one corner is chamfered, there is an effect that tension is applied without breaking the ear.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a metal sheet slitting device according to the present invention, and is an enlarged sectional view of a main part in FIG. 2;

FIG. 2 is a schematic cross-sectional view of the sheet metal slitting device according to the present invention.

FIG. 3 is a perspective view of a thin metal plate coated with a resin or a special metal according to the present invention;

FIG. 4 is a cross-sectional view illustrating a conventional slit device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slit device 2, 3 Rotating shaft 8, 8 ', 9 Blade 12 Cutting part 13 Outer blade 14 Pressing member 15 Outer corner part 15' Inner corner part 16 Corner 17 Metal sheet 18, 18 'Narrow metal sheet 19 Ear part

Claims (2)

(57) [Scope of request for utility model registration] 1. A slit of a thin metal sheet which is cut into a plurality of narrow metal sheets by a pair of upper and lower blades provided at a pair of rotating shafts arranged in parallel with each other at intervals in an axial direction. in the device, is disposed outside from the outer corner of the opposite side of the cutting portion of the blade located on the outermost
One of the rotation shafts provided with the outermost blade
Provided on the other rotating shaft parallel to
And the ears of the metal sheet
A slitting device for a thin metal plate, comprising a holding member for pressing the rotating shaft . 2. The device according to claim 1, wherein
The outer corner of the blade and the metal sheet of the holding member.
One of the inner corners that contacts the ear
A slitting device for a thin metal plate, which is chamfered and has the other edged shape .