JPH0633617U - Spacer for metal slitter - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a spacer for a metal slitter, which has good workability in assembling and reassembling the slitter and does not require much labor for manufacturing. [Structure] A plurality of arc-shaped split molds in which a ring plate or a short cylindrical body is split at a predetermined angle are hinged so as to be attachable to the outer circumference of the cutter shaft from the circumferential direction, or integrally joined via a hinge portion. And a connector for detachably connecting both ends of the holder when the holder is attached to the cutter shaft, and the holder is held in a state of slightly protruding from both side surfaces of each split mold, and It is provided with a spacing member of the same length which is regulated to be movable in the length direction of the cutter shaft within a certain range, and only the spacing member acts as a spacer during use. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a metal slitter for slitting a wide strip of copper, aluminum or their alloys or other metal strips into a narrow strip in general, and a space for maintaining a space between disc-shaped cutter blades. The present invention relates to a spacer, and in particular, to a spacer devised so that it can be easily attached to and detached from the cutter shaft and can be easily processed.

[0002]

[Prior 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, and these cutter shafts 1 and 2 are each provided with a flange to the end near the drive side. 12, 22 are formed. Each of the cutter shafts 1 and 2 has a ring-shaped (donut-shaped) spout having an appropriate width in order from the end portion on the working side before the cutter shafts 1 and 2 are supported on the working side stand 4. -By mounting the circular cutter knives 10 and 20 side by side at regular intervals via the rollers 11 and 21, and by nuts 13 and 23 screwed from the end of each cutter shaft 1 and 2 on the working side, The cutter shafts 1 and 2 are fixed to the flanges 12 and 22 of the cutter shafts 1 while being strongly pressed. After the spacers 11 and 21 and the cutter knives 10 and 20 are attached, the working-side ends of the cutter shafts 1 and 2 are supported on the working-side stand 4 by bearings. 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, a wide width is provided between the respective cutter knives 10 and 20 while rotating the cutter shafts 1 and 2 in opposite directions. When the metal strip a is retracted, the metal strip a is slit by the cutter knives 10 and 20 into a narrow strip.

Each of the spacers 11 and 21 is generally made of iron, but the width of the product (line) to be slit while keeping the intervals between the adjacent cutter knives 10 and 10 and 20 and 20 constant. High precision is required for the width dimension, smoothness of both sides and parallelism in order to maintain a constant value, and quenching is performed to prevent changes in the spacer over time. When exchanging the spacers 11 and 21 with blades having different widths, or when polishing or replacing the worn cutter knives 10 and 20, it is necessary to change the slitter. In this case, Slide the working side stand 4 together with the bearing to remove the cutter shafts 1 and 2 from the stand 4, and remove the nuts 13 and 23, the spacers 11 and 21 and the cutter knives 10 and 20 from the shafts 1 and 2. After that, it is reset to the state of FIG.

[0004]

[Problems to be solved by the device]

 Since the conventional spacers are integrally manufactured in a ring shape as described above, it is necessary to remove and insert all of them from the cutter shaft when reassembling the slitter. Very bad. In addition, it is necessary to finish the surfaces of both surfaces in parallel and smooth with high precision, and when manufacturing with iron, the whole is hardened, which is troublesome to manufacture. An object of the present invention is to provide a slitter spacer which has good workability in assembling and changing the slitter and does not require any labor for manufacturing.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the slitter spacer according to the present invention is provided with a plurality of arc-shaped split molds in which a ring plate or a short cylindrical body is split at a predetermined angle from the circumferential direction to the outer circumference of the cutter shaft. A holder that is hinged to be attachable, a connector that detachably connects both ends of the holder when the holder is attached to the cutter shaft, and a state that slightly protrudes from both side surfaces to each split mold. And a space holding member of the same length, which is held in a fixed range and is movable in the length direction of the cutter shaft within a certain range. It is desirable that the material of the holder is as light as possible, such as aluminum or its alloy, or nylon or other thermoplastic synthetic resin. When the holding body is made of thermoplastic synthetic resin, each split mold is configured to be integrally continuous via a thin hinge portion so that it can be mounted from the circumferential direction to the outer circumference of the cutter shaft. Can be implemented. It is preferable that each of the spacing members is composed of a metal rod made of carbon steel that penetrates the split mold.

[0006]

[Action]

 Since the slitter spacer according to the present invention is constructed as described above, both ends of a holding body composed of a plurality of split dies that are hingedly connected or are integrally connected to each other via a hinge portion are connected to the cutter shaft. It can be easily attached to the cutter shaft by separating it from the outer diameter or more, setting it from the outer peripheral direction to the outer periphery of the cutter shaft in this state, and connecting both ends of the holding body with the connecting tool. If a plurality of spacers are manufactured so that the spacing members are located at the same position of each holder, the spacers are connected to the cutter shaft by, for example, a connecting tool of each spacer. When installed so that the parts are aligned in the axial direction of the cutter shaft and positioned between the cutter knives, the spacing members of adjacent spacers are aligned in a line along the axial direction, and the end parts of the cutter shaft are aligned. When the nuts are tightened, the spacers of the spacers function to maintain the distance between the cutter knives. In this way, since the spacing member of each spacer bears the original function of the spacer, by precisely finishing the axial length of each spacing member with respect to the cutter axis, both spacers can be machined. Since the parallelism and smoothness of the arc are maintained, and the holder composed of the arcuate split mold is sufficient as long as it can hold the spacing member in a fixed posture, The freedom of choice is wide.

[0007]

【Example】

 A preferred embodiment of the spacer according to the present invention will be described with reference to FIGS. 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 shown in FIG. 1, and FIG. 3 is a partially enlarged sectional view taken along the arrow A--A of FIG. 4 is a partially 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 front view of a spacer according to still another embodiment, FIG. 8 is a front view of a spacer according to another embodiment, and FIG. 8 is a partially enlarged sectional view taken along the arrow BB of FIG. In the following description of the embodiments, the same components as those of the metal slitter shown in FIG.

Numerals 50 and 51 are arcuate split dies obtained by splitting a thick ring plate or a short cylindrical body made of nylon (original trademark) into approximately 180 degrees. The holders 1 are hinge-coupled by pins 52 so that they can be mounted on the outer circumference of the cutter shaft 1 shown in FIG. In this embodiment, a bifurcated connecting portion 54 is formed at one end of one split die 50 as shown in FIG. 2, and is guided between the connecting portions 54 at one end of the other split die 51. A convex connecting portion 55 was formed, a pin hole 56 (FIG. 1) was formed in both connecting portions 54, 55, the connecting portion 55 was guided to the connecting portion 54, and the pin 52 was inserted into the pin hole 56. After that, by crimping both ends of the pin 52, the pin 52 is configured so as not to fall off from the split molds 50 and 51.

A key groove 53 for guiding a key (not shown) formed on the cutter shaft 1 of FIG. 5 is formed inside the arc of one of the split dies 51.

Reference numeral 6 denotes a connecting tool for connecting both ends of the holding body 5 formed of the split dies 50 and 51 in a ring shape as shown in FIG. 1, and the outer peripheral surface of one of the split dies 50. It is composed of a hook member 60 attached to the end, an operation piece 61 swingably attached to the end of the outer peripheral surface of the other split mold 51, and a hooking member 62 attached to the operation piece 61. Raise the operating piece 61 from the surface of the split mold 51, hook the hooking member 62 on the hook member 60, and tilt the operating piece 61 again as shown in the figure to keep the holder 5 in a linked state. It is configured. Instead of the above-described structure, the connecting tool 6 has, for example, as shown in FIG. 4, a spring 64 whose one end is fixed to an end of one split mold 50 through a mounting piece 63, It can also be configured with a hooking member 66 attached to the end of the other split mold 51 so that the hook 65 at the other end of the spring 64 can be hooked.

Each split mold 50, 51 forming the holding body 5 communicates with both side surfaces so as to form an interval of about 60 degrees when the holding body 5 is ring-shaped as shown in FIG. The guide holes 57 are penetrated, and the space holding members 7 made of metal rods are held in the respective guide holes 57 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 as to have a constant length and both end surfaces are smooth.

As shown in FIG. 3, in the portion where the guide holes 57 of the split dies 50 and 51 are formed, the radial direction from the inside of the arc of the split dies 50 and 51 is set so as to pass through the center of the guide holes 57. A pin press-fitting hole 58 communicating with the space holding member 7 is formed, and the space holding member 7 inserted into the guide hole 57 is substantially orthogonal to the axial direction of the space holding member 7 at approximately the center in the length direction. As described above, a guide hole 70 having a diameter larger than that of the pin press-fitting hole 58 is formed, and a regulation pin 71 composed of a taper pin is press-fitted from the inside into the pin press-fitting hole 58 so as to pass through the guide hole 70. By doing so, each spacing member 7 is regulated to move in the axial direction within a certain range. In this way, the spacing members 7 held by the split dies 50, 51 have both ends slightly protruding from both surfaces of the split dies 50, 51 as shown in the figure.

When assembling the slitter using the spacer 5a of the above embodiment, each cutter knife is also formed with a key groove for guiding the key of the cutter shaft, as shown in FIG. , A cutter knife 10 and an appropriate number of spacers 5a are alternately attached to the cutter shaft 1 so that the key is guided to the key groove. At this time, the cutter knife 10 is inserted into the cutter shaft 1 from its left end and mounted, but each spacer 5a is inserted from the outer periphery in a state where the split dies 50 and 51 shown in FIG. Then, the free ends of the holding body 5 are connected by the connecting tools 6. After that, by tightening the nut 13 onto the cutter shaft 1, the cutter knives 10 and the spacers 5a are fixed while being pressed against the collar 12 at the other end of the cutter shaft 1.

In the assembled state of FIG. 5, the respective distance holding members 7 held by the respective holding bodies 5 are arranged in a line in the axial direction of the cutter shaft 1 so that the distance between the adjacent cutter knives 10 is maintained. To work.

Therefore, according to the spacer of the above-described embodiment, the length dimension of each spacing member 7 and the smoothness of the end face thereof may be precisely finished, and the work such as quenching of the entire spacer is performed. Since it is unnecessary, precise production is easier. Further, as described above, since the entire holding body 5 can be opened and mounted from the outer peripheral direction of the cutter shaft, the work of reassembling the slitter can be done without trouble. Furthermore, since the holding body 5 only holds the space holding member 7 which functions as a spacer, nylon or other thermoplastic resin is selected as the material, as in the above-mentioned embodiment, or aluminum is used. Alternatively, by selecting an alloy or the like, it is possible to reduce the weight as a whole and to make the handling at the time of changing the slitter extremely easy.

In order to manufacture the spacer holder 5 of the above-mentioned embodiment, for example, as shown in FIG. 6, a pipe 5b made of nylon is formed, and the required pin holes 56, shown in FIG. The guide hole 57, the pin press-fitting hole 58, the key groove 53, etc. are continuously formed, and then cut along the connecting portion 54 into a circular slice shape, and cut into an arc of about 180 degrees. . By manufacturing in this way, it can be manufactured at low cost without waste.

In the above-described embodiment, the guide holes 57 in the shape of round holes are formed in each of the split dies 50 and 51, and the pin-shaped spacing members 7 are inserted into the inner holes 57, but, for example, in FIG. As described above, the elongated guide holes 57 may be formed at symmetrical positions of the respective split dies 50 and 51, and the spacing members 7 having a constant width and having an arcuate cross section may be inserted and held in the guide holes 57. In this case, the regulation pin 71 is passed through both ends of the guide hole 57.

The spacing member 7 of the embodiment shown in FIG. 1 is formed, for example, in a trapezoidal cross section as shown in FIG. 8 so that the spacing member 7 can be inserted into the outer periphery of each split mold 50, 51 along the axial direction. It can also be implemented by forming a groove-shaped guide hole 57. Also in this case, as shown in FIG. 9, a pin press-fitting hole 58 is formed in each split mold 50, 51 along the circumferential direction, and a large diameter guide hole 70 is formed in the spacing member 7 so as to communicate with the hole 58. However, it is preferable to press-fit the restriction pin 71 into the pin press-fitting hole 58 from the inside of the arc of the split molds 50, 51 so as to pass through the guide hole 70.

When the holder 5 is made of nylon or other thermoplastic synthetic resin, the split dies 50 and 51 are integrally connected via a thin hinge 59 as shown in FIG. 8, for example. It is possible to implement even if it is configured to.

In each of the above-described embodiments, the holding body 5 is composed of two semi-circular split molds 50 and 51, but the split molds are in a state where they are connected together to form a ring. If there are three or more, it can be implemented.

In each of the above-described embodiments, a large-diameter guide hole 70 is formed in the spacing member 7, and a small-diameter regulating pin 71 is passed through the guide hole 70 to move the spacing member 7 in the axial direction within a certain range. Although it is regulated, it is not limited to the configuration of each of the above embodiments as long as the movement in the axial direction is regulated within a certain range.

[0022]

[Effect of device]

 In the metal slitter spacer according to the present invention, only each spacing member is made of a material capable of withstanding the spacing of the cutter knife, and the length dimension of each spacing member and the smoothness at both ends are precisely finished. Good, it does not require quenching as a whole, so it can be manufactured at a lower cost, and the slitter can be easily reassembled. Further, the range of material selection for the holder is widened, and by selecting a lighter material, the spacer as a whole can be made lighter, and the slitter reassembling work can be further facilitated.

[Brief description of 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 shown in FIG.

FIG. 3 is a partial enlarged cross-sectional view taken along the arrow AA of FIG.

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

5 is a partial front view of a slitter assembled using the spacer shown in 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.

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.

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

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

[Explanation of symbols]

 1 and 2 cutter shaft 10 and 20 cutter knife 11 and 21 conventional spacer 12 and 22 collar 13 and 23 nut 3 drive side stand 4 working side stand 5a spacer 5 holder 50 and 51 according to the embodiment of the present invention Split type 52 pin 53 key groove 54, 55 connecting part 56 pin hole 57 guide hole 58 pin press-fitting hole 6 connecting tool 60 hook member 61 operation piece 62 hooking member 63 mounting piece 64 spring 65 spring end 66 hook piece 7 spacing Holding member 70 Guide hole 71 Restriction pin a Metal strip

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Creator Ryoichi Kobayashi 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Aluminum Co., Ltd.

Claims (4)

[Scope of utility model registration request] 1. A holding body in which a plurality of arc-shaped split molds in which a ring plate or a short cylindrical body is split at a predetermined angle are hinge-connected so as to be attachable to the outer periphery of a cutter shaft from the circumferential direction, and the holding body. A connecting tool that detachably connects both ends of the holder at the time of mounting to the cutter shaft, and a holder that is held in a state of slightly protruding from both side surfaces to each split mold and that has a length of the cutter shaft within a certain range. A spacer for a metal slitter, comprising: a spacing member having the same length and regulated to be movable in the vertical direction. 2. The spacer for a metal slitter according to claim 1, wherein the material of the holding body is aluminum, an alloy thereof, nylon, or another thermoplastic synthetic resin. 3. A thin hinge portion for mounting a plurality of arc-shaped split dies in which a ring plate or a short cylindrical body made of a thermoplastic synthetic resin is split at a predetermined angle so that it can be mounted from the circumferential direction to the outer circumference of the cutter shaft. Via a continuous holding body, a connecting device that detachably connects both ends of the holding body when the holding body is attached to the cutter shaft, and a projecting member slightly protruding from both side surfaces to each split mold. A spacer for a metal slitter, which is provided with a spacing member having the same length, which is held in a fixed state and is movable in the length direction of the cutter shaft within a certain range. 4. Each of the spacing members is made of a metal rod made of carbon steel and penetrating the split mold.
A spacer for a metal slitter according to any one of 3 to 3.