JPS60259312A - slitting device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a slitter device for cutting a metal strip such as a copper strip into a predetermined width along its longitudinal direction.

(b) A prior art slitter device cuts a metal strip such as a copper strip into a predetermined width along its longitudinal direction.

As shown in FIGS. 9 and 10, the conventional slitter device is equipped with a pair of slitter rolls 3 on which knives 2 are fixed at a predetermined interval on a shaft 1, and by passing a metal band 4 between the rolls 30. , the metal strip is cut to a predetermined width.

To fix the knives 2 at predetermined intervals, a plurality of spacers 5 are appropriately combined to have a predetermined size, and these spacers 5 are inserted between the knives 20.

A rubber ring 6 is inserted outside the spacer 5, and a nut 7 is tightened on the end of the shaft 1 to fix the knife 2. The knife 2 and spacer 5 are fixed to the shaft 1 by a key 8 to prevent relative rotation therebetween. The predetermined spacing is finely adjusted by appropriately inserting a ring-shaped liner (not shown) between the spacers 50.

To change the knife spacing, loosen the nut 7 and remove it from the shaft 1. Next, remove the spacer 5° knife 2.
The rubber ring 6 and ring-shaped liner must all be removed from the shaft 1 and reassembled in accordance with the changed dimensions. For this reason, much effort and time are required for rearrangement adjustment.

The thickness of the spacer 5 is increased to provide a keyway 9
Weight increases. Furthermore, many types of spacers must be prepared in order to accommodate various sizes.

The number of rubber rings 6 corresponding to the spacers 5 must also be provided, and if the number of rubber rings 6 is saved, a gap will be created between the knives 2 and the metal strip 4
The pressure is not sufficient.

(c) Problems to be Solved by the Invention The problems to be solved by the present invention are to obtain a slitter device that can easily and accurately change the knife spacing.

(2) Means for Solving the Problems The slitter device of the present invention has a plurality of knives mounted at predetermined intervals on a pair of parallel shafts, and a metal strip passed between the knives. In a slitter device for cutting a metal strip into a plurality of strips of a predetermined width in the longitudinal direction thereof, a central knife is keyed to an axially central portion of the shaft.

a pair of sleeves that are fitted onto and keyed to the shaft from both sides of the central knife; a nut that is threadedly engaged with both ends of the shaft and restrains axial movement of the sleeve; a plurality of adjacent knives axially slidably keyed to said sleeve; a rubber ring axially slidably keyed to said sleeve and selectively inserted between said knives; Spacers to regulate the spacing between rings to specified dimensions.
The above-mentioned problem is solved by a means consisting of a bolt and a bolt for fixing the knife spacing.

The slitter device of the present invention can also solve the above-mentioned problems by using a 9th order change means. That is, the slitter device of the present invention has two parts: a first sleeve fitted to the shaft and keyed to the shaft; and a central sleeve keyed to the axial center of the sleeve and restrained from moving in one axial direction. a knife; a second sleeve that is fitted and keyed to the first sleeve from the free movement side of the central knife; and a second sleeve that is threadedly engaged with both ends of the shaft and moves the first and second sleeves in the axial direction. a plurality of adjacent knives axially slidably keyed to the first or second sleeve; and a plurality of adjacent knives axially slidably keyed to the first or second sleeve and the The spacer comprises a rubber ring that is selectively inserted between the knives, a spacer bolt that regulates the spacing between the knives or the rubber rings to a predetermined dimension, and a tightening bolt that fixes the spacing between the knives. ing.

(E) To change the working knife spacing, first loosen the tightening bolt and move the adjacent knife in the axial direction to a distance that allows the spacer bolt to be removed. The spacer bolt may then be replaced with one of the specified size. The sleeve is axially
In a modified slitter device that is not divided, the knife or the like integrated with the first sleeve may be replaced with another one by removing the nut.

(F) Embodiments Next, nine embodiments of the slitter apparatus of the present invention will be described with reference to two drawings. First, a first embodiment will be described with reference to FIGS. 1 and 2. The slitter device according to the first embodiment of the present invention includes a pair of shafts 1. central knife 2α
, a first key 11, a pair of sleeves 12. Nut 7, adjacent knife 2h, second key 13. Rubber ring 14. Spacer bolt 15゛・; Tightening is done from bolt 16.

A metal strip 4 such as a copper strip is passed through a slitter device in which a central knife 2α and adjacent knives 2b are attached at a predetermined interval to a pair of shafts 1 spaced parallel to each other, so that a plurality of strips (not shown) are formed into a predetermined width. In this embodiment, it is cut into two strips.

The central knife 2α is attached to the axial center of the shaft 1 by a first key 11. The pair of sleeves 12 are fitted onto the shaft 1 from both sides of the central knife 2α, and the shaft IK is locked by the first key 11vc. Nuts 7 engage threaded portions 101 at both ends of shaft 10 to restrict axial movement of sleeve 12. The central knife 2a is fixed to the central part of the shaft 1 by a sleeve 12. The central knife 2α has screw holes 201 arranged concentrically at intervals of 60 degrees.

The adjacent knife 2h is fitted into the sleeve 12 so as to be slidable in the axial direction, and is keyed to the sleeve 12 by a second key 13. The adjacent knife 2b has screw holes 201 concentrically arranged at 120 degree intervals, and one screw hole 201 that is 60 degrees apart from the screw hole 201.
Holes 202 are provided at 20 degree intervals.

The rubber ring 14 is axially slidably fitted into the sleeve 12 and is keyed to the sleeve 12 by a second key 13 . The rubber ring 14 has a rubber shoe 142 wrapped around the outer periphery of a metal post 141.

The rubber ring 14 is for preventing the cut metal strip 4 from bending, and is selectively inserted between the knives 2α and 21r. Rubber ring 14 is concentrically ±120
screw holes 143 and 60 holes in screw holes -143 at intervals of 60 degrees.
Holes 144 are provided at intervals of 120 degrees.

Spacer bolt 15 is made up of a threaded portion 151 and a hexagonal head 152, as shown in FIGS. 7 and 8. The threaded portion 151 has a threaded hole 201 in the central knife 2α and a threaded hole 201 in the adjacent knife 2b. Alternatively, it is screwed into the screw hole 143 of the rubber ring 14. The hexagonal head 152 regulates the spacing between the knives 2a and 2h or between the rubber ring 14 to a predetermined dimension. A large number of hexagonal heads 19.2 with various lengths L are prepared in advance.

To tighten the bolt 16, as shown in FIGS. 5 and 6, use a short threaded portion 161. Hexagonal head 162. long threaded part 16
It is made up of 3. The short threaded part 161 is the central knife 2α
The hexagonal head 162 engages the side surface of the central knife 21Z and is accommodated in the blank hole 144 of the rubber ring 14, and the long threaded portion 163 is screwed into the adjacent knife 2
6 stupid hole 202 or rubber ring 14 stupid hole 14
4 is penetrated. A nut 9 is screwed into a long threaded portion 163 protruding from the hole 202 of the adjacent knife 2h to fix the distance between the knives 2a and 2h.

In the above-mentioned embodiment, the case where there are two adjacent knives 2b and the metal strip 4 is cut into two strips has been described. However, when cutting the metal strip 4 into more strips, the adjacent knives 2h are used. A necessary number of knives may be provided and each knife 2α, 2b may be fixed by the operation described above.

To change the distance between the knives 2α and 2h, first loosen the nut 9 of the tightening bolt 16 and move the adjacent knife 2b in the axial direction. The amount of movement may be slightly greater than the length of the threaded portion of the spacer bolt 15. By rotating the hexagonal head 152 of the spacer bolt 15 with a tool such as a spanner, the spacer bolt 15 can be removed and replaced with one of a different size.

Next, a second embodiment will be described with reference to FIGS. 3 and 4. In the second embodiment, the same reference numbers as in the first embodiment indicate the same parts. Only the constituent parts that are different from the first embodiment will be explained.

The first sleeve 12a is fitted onto the shaft IVc and is keyed to the shaft 1 by the first key 11d.

The first sleeve 12'α is stepped from the center in the axial direction. The central knife 2a is inserted from the small diameter side of the first sleeve 12α and pushed up to the 8 step portion. The central knife 2α is inserted into the first sleeve 12a by the second key 134.
, VC key is locked.

The second sleeve 12h is inserted from the small diameter side of the first sleeve 12α, and is pushed in until it contacts the central sleeve 2α. The second nullip 12b is keyed to the first sleeve 12α by a second key 13α.

The adjacent knife 2b or rubber ring 14 is keyed to the large diameter portion of the first sleeve 12α by a third key 13b. Similarly, the adjacent knife 2b or rubber ring 14 is keyed to the second sleeve 12b by a third key 13AK.

In the second embodiment, knives 2a, 2b or rubber
Since the ring 14 is not directly engaged with the shaft 1,
By removing the first sleeve 12d from the shaft 1, the knives 2a, 2b and the rubber ring 14 can be replaced as an integral unit while remaining fixed to the sleeves 12α, 12h.

The change in the spacing between the knives 2a and 2h is the same as in the first embodiment.

(g) Effects The slitter device of the present invention does not require a spacer like conventional ones, so the overall weight is reduced, and the knife spacing can be changed easily and quickly by simply replacing the spacer bolt. can.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the slitter device of the present invention. Figure 2 is a front view taken from the line ■-■ in Figure 1. FIG. 3 is a longitudinal sectional view showing a modification of the slitter device shown in FIG. 1. FIG. 4 is a front view taken from line IV-IV in FIG. 3. FIG. 5 is a side view of a tightening bolt used in the slitter device of the present invention. FIG. 6 is a rear view seen from line VI-VI in FIG. 7th
The figure is a side view of a spacer bolt used in the slitter device of the present invention. FIG. 8 is a front view seen from the line ■-■ in FIG. 7. FIG. 9 is a longitudinal sectional view of a conventional slitter device. Figure 10 is the 9th
The front view seen from the XX line of a figure. 1: Shaft 2α: Center knife 2b: Adjacent knife 7, 9: Nut 12 Ni sleeve 14: Rubber ring 15 Ni spacer bolt 16: Tighten bolts 11, 13
:Key patent applicant: Sumitomo Metal Industries, Ltd. (5 others)

Claims (2)

[Claims] (1) A plurality of knives are attached at a predetermined interval to a pair of parallel shafts, and a metal strip is passed between the knives to form a plurality of strips of a predetermined width in the longitudinal direction of the metal strip. A slitter device for cutting, comprising: a central knife keyed to the axial center of the shaft; a pair of sleeves fitted onto the shaft from both sides of the central knife and keyed to the shaft; and the shaft. a plurality of adjacent knives that are slidably and freely keyed to the sleeve in the axial direction; and a plurality of adjacent knives that are slidably and keyed to the sleeve in the axial direction. a rubber ring selectively inserted between the knives; a spacer bolt for regulating the spacing between the knives or the rubber rings to a predetermined dimension; and a bolt and a bolt for fixing the spacing between the knives. A slitter device consisting of. (2) A plurality of knives are attached at a predetermined interval to a pair of parallel shafts, and by passing a metal band between the knives, a plurality of knives are attached to a predetermined width in the longitudinal direction of the metal band. In a slitter device for cutting into strips, a first sleeve is fitted onto the shaft and is keyed to the shaft, and a central knife is keyed to an axially central portion of the sleeve and restrained from moving in one axial direction. a second sleeve that is fitted and keyed to the first sleeve from the freely movable side of the central knife; and a second sleeve that is threadedly engaged with both ends of the shaft to prevent axial movement of the first and second sleeves. a plurality of adjacent knives axially slidably keyed to the first or second sleeve; a plurality of adjacent knives axially slidably keyed to the first or second sleeve and between the knives; A slitter device comprising a rubber ring that is selectively inserted, a spacer bolt that regulates the spacing between the knives or the rubber rings to a predetermined size, and a tightening bolt that fixes the spacing between the knives.