JP2534728Y2 - Spacer for metal slitter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention generally relates to a metal slitter for slitting a wide copper, aluminum or alloy thereof or other metal strip into a narrow strip. The present invention relates to a spacer for maintaining an interval, and more particularly to a spacer which is easily attached to and detached from a cutter shaft, and is devised so as to facilitate processing.

[0002]

2. Description of the Related Art FIG. 10 is a partial sectional view of a metal slitter using a conventional spacer. A pair of parallel cutter shafts 1 and 2 are rotatably supported by bearings on the drive side stand 3 and the working side stand 4, respectively. , 22 are formed. Before the cutter shafts 1 and 2 are allowed to bear on the work-side stand 4, the cutter shafts 1 and 2 are each formed into a ring shape (dowel) having an appropriate width from the end on the work side.
Circular cutter knives 10 and 20 are mounted side by side at regular intervals via spacers 11 and 21 having a (nut) shape, and nuts 13 and 23 are screwed from the working-side ends of the cutter shafts 1 and 2. The flange 1 of each cutter shaft 1 and 2
It is fixed in a state where it is strongly pressed to 2,22. After the spacers 11 and 21 and the cutter knives 10 and 20 are mounted, the working-side ends of the cutter shafts 1 and 2 are attached to the working-side stand 4.
It is supported by a bearing. Since the cutter knives 10 and 20 of the respective cutter shafts 1 and 2 are mounted so as to be paired with each other, the width between the respective cutter knives 10 and 20 is large while rotating the cutter shafts 1 and 2 in opposite directions. When the metal strip “a” is moved in, the metal strip “a” becomes the cutter knife 10, 20.
Slits into narrow strips.

[0003] Each spacer 11, 21 is generally made of iron, but between adjacent cutter knives 10, 10 and 2
In order to keep the width of products (strips) slit at a constant interval of 0 and 20, the width dimension, smoothness and parallelism of both sides are required to be high precision.
Further, a quenching treatment is performed to prevent the spacer from changing over time. Then, when replacing the spacers 11 and 21 with those having different widths, or when the worn cutter knife 10 or
When polishing or replacing the 20, it is necessary to change the slitter. In this case, the working side stand 4 is slid together with the bearings, and
After removing the cutter shafts 1 and 2, the nuts 13 and 23, the respective spacers 11 and 21 and the cutter knives 10 and 20 are all removed from the shafts 1 and 2, they are reset to the state shown in FIG.

[0004]

Since the conventional spacer is integrally manufactured in a ring shape as described above, it is necessary to remove or insert the entire slitter from the cutter shaft when reassembling the slitter. And the workability of rearrangement is very poor. In addition, it is necessary to perform parallel and smooth finishing on the entire surface of both surfaces with high precision, and when manufacturing with iron, there is a problem that it takes time and effort to manufacture because the whole is hardened. SUMMARY OF THE INVENTION An object of the present invention is to provide a spacer for a slitter which has good workability when assembling and reassembling the slitter and does not require much time for production.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a slitter spacer according to the present invention comprises a plurality of arc-shaped split dies in which a ring plate or a short cylindrical body is split at a predetermined angle. A holder hinged so as to be attachable to the outer circumference of the cutter shaft from a direction, a connecting tool for detachably connecting both ends of the holder when the holder is attached to the cutter shaft, and both sides to each of the split dies. The space holding members are formed so as to be slightly protruded from the surface and have the same length and are regulated to be movable in the length direction of the cutter shaft within a certain range. The material of the holding body,
It is desirable that the material be as light as possible, such as aluminum or its alloy, nylon or other thermoplastic synthetic resin. When the holding body is made of a thermoplastic synthetic resin, each of the split molds is configured to be integrally connected to each other via a thin hinge portion so as to be attachable to the outer periphery of the cutter shaft from the circumferential direction. Can also be implemented. It is preferable that each of the spacing members is constituted by a metal rod made of carbon steel penetrating the split mold.

[0006]

Since the slitter spacer according to the present invention is constructed as described above, both ends of a plurality of split-type holding members which are hinged or connected integrally via a hinge portion are formed. The holder can be easily attached to the cutter shaft by separating the holder from the outer diameter of the cutter shaft or more in this state from the outer peripheral direction to the outer periphery of the cutter shaft and connecting both ends of the holder with the connecting tool. If a plurality of spacers are manufactured so that the spacing member is located at the same position of each holding body, the spacers are connected to the cutter axis by, for example, a connector of each spacer. When installed in a state where the parts are located between the cutter knives side by side in the axial direction of the cutter axis,
The spacing members of the adjacent spacers are arranged in a line in the axial direction, and when the nut is tightened from the end of the cutter shaft, the spacing members of the spacers maintain the spacing between the cutter knives. It works to. As described above, since the spacing members of each spacer bear the original function of the spacer, the length of each spacing member in the axial direction with respect to the cutter axis is precisely finished, so that the both surfaces of the spacer are finished. The parallelism and smoothness are maintained.
Any material that can withstand holding the spacing member in a fixed posture is sufficient, and the freedom of selecting the material is widened.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a spacer according to the present invention will be described with reference to FIGS. 1 is a front view showing an embodiment of the spacer according to the present invention, FIG. 2 is a partial plan view of the spacer of FIG. 1, and FIG. 3 is a partially enlarged sectional view taken along the arrow AA of FIG. 4 is a partial enlarged front view of a spacer according to another embodiment, FIG. 5 is a partial front view of a slitter assembled using the spacer of FIG. 1, and FIG. 6 is a spacer of the embodiment of FIG. FIG. 7 is a partial plan view showing the manufacturing process of each split mold, FIG. 7 is a front view of a spacer according to still another embodiment, FIG. 8 is a front view of a spacer according to still another embodiment, and FIG. Arrow B-
It is the elements on larger scale sectional drawing which follows B. In the following description of the embodiment, the same components as those of the metal slitter of FIG.

Reference numerals 50 and 51 denote arc-shaped split molds obtained by dividing a thick ring plate or a short cylindrical body made of nylon (trade name) into approximately 180 degrees.
One end of each of the holders 0 and 51 is hinge-connected by a pin 52 so that the holder 5 can be attached to the outer periphery of the cutter shaft 1 in FIG. In this example,
As shown in FIG. 2, a forked connecting portion 54 is formed at one end of one split mold 50, and a convex connecting portion 55 guided between the connecting portions 54 at one end of the other split mold 51. And a pin hole 56 (FIG. 1) is formed in both connecting portions 54 and 55, and the connecting portion 55 is guided to the connecting portion 54 so that the pin hole 5 is formed.
After the pins 52 are inserted into 6, both ends of the pins 52 are swaged so that the pins 52 do not fall off the split dies 50 and 51.

The inside of the arc of one split mold 51 is shown in FIG.
A key groove 53 for guiding a key (not shown) formed on the cutter shaft 1 is formed.

Reference numeral 6 denotes a connector for connecting both ends of the holder 5 in a state where the holder 5 composed of the split dies 50 and 51 is formed in a ring shape as shown in FIG. The hook member 60 attached to the end and the other split mold 51
Operating piece 61 swingably attached to the end of the outer peripheral surface of the
And a hook member 62 attached to the operation piece 61. When the operation piece 61 is raised from the surface of the split mold 51, the hook member 62 is hooked on the hook member 60, and the operation piece 61 is again laid down as shown in the drawing. The holding member 5 is configured to maintain a link-like state. This connector 6
Instead of the above-described configuration, for example, as shown in FIG. 4, a spring 64 having one end fixed to an end of one split mold 50 via an attachment piece 63, A hook member 66 attached to the end of the other split mold 51 so that the end hook 65 can be hooked can also be used.

Each of the split dies 50 and 51 constituting the holding member 5 has a guide leading to both sides such that the holding member 5 is formed in a ring shape as shown in FIG. Holes 57 are penetrated, and in each of these guide holes 57, a spacing member 7 made of a metal rod is held in a state of being inserted so as to move within a certain range in the axial direction. Each spacing member 7 is made of carbon steel so that the length thereof is constant and both end faces are smooth.

As shown in FIG. 3, in the portion where the guide holes 57 of the split dies 50 and 51 are formed, a circumferential direction is set from inside the arc of the split dies 50 and 51 so as to pass through the center of the guide holes 57. A pin press-in hole 58 is formed, and the center of the spacing member 7 inserted into the guide hole 57 in the longitudinal direction is substantially perpendicular to the axial direction of the spacing member 7. A guide hole 70 having a diameter larger than that of the pin press-fit hole 58 is formed, and a restricting pin 71 formed of a taper pin is pressed into the pin press-fit hole 58 from the inside so as to pass through the guide hole 70. The spacing member 7 is regulated so as to move in the axial direction within a certain range. As described above, the spacing member 7 held by each of the split dies 50 and 51 is provided.
Have both ends slightly projecting from both surfaces of the split molds 50 and 51 as shown in the figure.

When assembling the slitter using the spacer 5a of the above embodiment, a key groove for guiding the key of the cutter shaft is formed in each cutter knife, as shown in FIG. The cutter knife 10 and an appropriate number of spacers 5a are alternately mounted on the cutter shaft 1 such that the key is guided to the key groove. At this time, the cutter knife 10 is attached to the cutter shaft 1.
It is inserted from the left end of the umbilicus and mounted.
Is mounted on the cutter shaft 1 from the outer periphery with the split molds 50 and 51 of FIG. 1 opened to the left and right, and free ends of the holder 5 are connected by the connecting tool 6. After that, by tightening the nut 13 to the cutter shaft 1, each cutter knife 10 and the spacer 5a are fixed while being pressed against the flange 12 at the other end of the cutter shaft 1.

In the assembled state shown in FIG. 5, the spacing members 7 held by the holders 5 are arranged in a line in the axial direction of the cutter shaft 1, so that the adjacent cutter knives 10 maintain the distance between them. Works.

Therefore, according to the spacer of the above-described embodiment, the length of each spacing member 7 and the smoothness of its end face need to be precisely finished, and the work such as quenching of the entire spacer can be performed. Precise production is easier because of the elimination of Further, as described above, since the entire holding body 5 can be opened and mounted from the outer circumferential direction of the cutter shaft, the work of reassembling the slitter can be reduced. Further, since the holding body 5 only holds the space holding member 7 which functions as a spacer, for example, nylon or other thermoplastic resin is selected as the material, as in the above-described embodiment.
Alternatively, by selecting aluminum, an alloy thereof, or the like, the weight can be reduced as a whole, and handling when the slitter is rearranged can be greatly facilitated.

In order to manufacture the spacer holder 5 of the above-described embodiment, for example, as shown in FIG.
Then, the required pin holes 56, the respective guide holes 57, the pin press-fit holes 58, the key grooves 53 and the like shown in FIG. At the same time as cutting, it is cut into an arc of about 180 degrees. By manufacturing in this way, it is possible to manufacture at low cost without waste.

In the above-described embodiment, a round hole-shaped guide hole 57 is formed in each of the split dies 50 and 51, and the pin-shaped spacing member 7 is inserted into the guide hole 57. For example, as shown in FIG. A slot-shaped guide hole 57 is provided at a symmetric position of each of the split molds 50 and 51.
May be formed, and the interval holding member 7 having a constant width in an arc-shaped cross section may be inserted and held in the guide hole 57. In this case, the regulating pin 71 is made to penetrate both ends of the guide hole 57.

The spacing member 7 in the embodiment of FIG. 1 is formed in a trapezoidal cross section as shown in FIG. 8, for example, so that the spacing member 7 can be inserted into the outer periphery of each of the split dies 50 and 51 along the axial direction. The present invention can also be implemented by forming the dovetail-shaped guide hole 57. Also in this case, as shown in FIG.
1, a pin press-fitting hole 58 is formed along the circumferential direction, a large-diameter guide hole 70 is formed in the spacing member 7 so as to communicate with the hole 58, and a split mold is formed to pass through the guide hole 70 to the pin press-fitting hole 58. From the inside of the 50 and 51 arcs, the regulating pin 71
Is preferably press-fitted.

When the holding body 5 is made of nylon or other thermoplastic synthetic resin, for example, as shown in FIG.
The present invention can be practiced even if each of the split dies 50 and 51 is configured so as to be integrally continuous via a thin hinge portion 59.

In each of the above-described embodiments, the holder 5 is constituted by two semicircular split dies 50 and 51. The split dies may be in a state in which the whole is connected to form a ring. If it is three or more, it can be carried out.

In each of the above embodiments, the spacing member 7
A large-diameter guide hole 70 is formed through the small-diameter restricting pin 71 to regulate the spacing member 7 so as to move in the axial direction within a certain range. The configuration is not limited to the configuration described in each of the above embodiments as long as the configuration is regulated by the above.

[0022]

In the spacer for a metal slitter according to the present invention, only the spacing members are made of a material that can withstand the spacing of the cutter knife, and the length of each spacing member and the smoothness of both ends are determined. It is only necessary to finish precisely, and it is not necessary to quench the whole, so that it can be manufactured at a lower cost, and the rearrangement of the slitter becomes very easy. Also,
The range of material selection of the holding member is widened, and by selecting a lighter material, the entire spacer can be made lighter, and the slitter assembling work can be further facilitated.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a spacer according to the present invention.

FIG. 2 is a partial plan view of the spacer of FIG. 1;

FIG. 3 is a partially enlarged sectional view taken along an arrow AA in FIG. 1;

FIG. 4 is a partially enlarged front view of a spacer according to another embodiment.

FIG. 5 is a partial front view of the slitter assembled using the spacer of FIG. 1;

FIG. 6 is a partial plan view showing a manufacturing process of each split mold of the spacer of the embodiment of FIG. 1;

FIG. 7 is a front view of a spacer according to still another embodiment.

FIG. 8 is a front view of a spacer according to still another embodiment.

FIG. 9 is a partially enlarged cross-sectional view along the arrow BB of FIG. 8;

FIG. 10 is a partial cross-sectional view of a metal slitter using a conventional spacer.

[Explanation of symbols]

 1, 2 cutter shaft 10, 20 cutter knife 11, 21 conventional spacer 12, 22 flange 13, 23 nut 3 drive side stand 4 working side stand 5a spacer 5 according to the embodiment of the present invention 5 holder 50, 51 Split type 52 Pin 53 Key groove 54, 55 Connecting part 56 Pin hole 57 Guide hole 58 Pin press-in hole 6 Connector 60 Hook member 61 Operation piece 62 Hook member 63 Mounting piece 64 Spring 65 Spring end 66 Hook piece 7 Interval Holding member 70 Guide hole 71 Restriction pin a Metal strip

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Ryoichi Kobayashi 2-6-1, Marunouchi, Chiyoda-ku, Tokyo Furukawa Aluminum Industry Co., Ltd. 5-51524 (JP, U) JP-A 55-160727 (JP, U) JP-B 61-13929 (JP, B2) JP-B 13-16040 (JP, Y1)

Claims (4)

(57) [Scope of request for utility model registration] 1. A holder in which a plurality of arc-shaped split dies in a state where a ring plate or a short cylindrical body is split at a predetermined angle are hinged so as to be attachable to an outer periphery of a cutter shaft from a circumferential direction. A connector for detachably connecting both ends of the holding member when the holder is mounted on the cutter shaft, and a length of the cutter shaft within a certain range, which is held in a state of slightly projecting from both sides to each of the split dies. A spacing member having the same length and being regulated so as to be movable in the vertical direction. 2. The spacer for a metal slitter according to claim 1, wherein a material of the holding body is aluminum, an alloy thereof, nylon, or other thermoplastic synthetic resin. 3. A thin hinge portion which can be attached to a plurality of arc-shaped split dies in a state in which a ring plate or a short cylindrical body made of a thermoplastic synthetic resin is split at a predetermined angle from the circumferential direction to the outer periphery of the cutter shaft. And a connecting tool for detachably connecting both ends of the holding body when the holding body is mounted on the cutter shaft, and projecting slightly from both side surfaces to the respective split molds. A spacer for a metal slitter, comprising: a spacing member having the same length and being held in a state and regulated to be movable in a length direction of the cutter shaft within a predetermined range. 4. The apparatus according to claim 1, wherein each of the spacing members is formed of a metal rod made of carbon steel penetrating the split mold.
4. The spacer for a metal slitter according to any one of claims 1 to 3.