JP7084051B2 - Slitter device - Google Patents

Description

The present invention relates to a slitter device for cutting a sheet-shaped material to be cut or separating a strip-shaped material formed by cutting the material to be cut.

The following Patent Document 1 discloses a slitter device that facilitates removal of a cutter or spacer arranged in close contact by forming a groove on the surface of the cutter or spacer. In this technique, the grooves formed reduce the contact area between the surfaces, thereby facilitating the separation of the surfaces in close contact.

By the way, in this technique, oil or dust may enter the groove, which may reduce the positional accuracy of the cutters and spacers arranged adjacent to each other. Further, if cutting chips get into the groove, there is a problem that the parts may be galled.

In order to alleviate this problem, it is possible to reduce the number and area of the grooves, but if this is done, the contact area between the surfaces will increase, and it will be difficult to separate the surfaces that are in close contact with each other.

Further, in recent years, an automatic blade assembly system that automatically attaches a cutter or a spacer to the spindle of a slitter device has been proposed. In an example of an automatic blade assembly system, a cutter or spacer is gripped by a robot arm and lifted in the radial direction, and then these are attached to a spindle. Here, in the above-mentioned conventional technique, when the cutter or the spacer is moved in the radial direction, the groove formed on the surface interferes with the surface of the adjacent component, which may hinder the automatic blade assembly. ..

Japanese Unexamined Patent Publication No. 2004-345012

The present invention has been made in view of the above circumstances. A main object of the present invention is to provide a technique for facilitating the separation of rotating parts while solving the above-mentioned problems.

The present invention can be expressed as the invention described in the following items.

(Item 1)
A slitter device for cutting a sheet-shaped material to be cut using a plurality of rotating parts arranged at predetermined intervals, or separating a strip-shaped material formed by cutting the material to be cut.
The plurality of rotating parts include one rotating part and another rotating part adjacent to the one rotating part.
The one rotating component includes a first contact surface that is brought into close contact with a second contact surface formed on the other rotating component.
A slitter device characterized in that at least a part of the first contact surface is arranged in the same surface as the first contact surface and is provided with an oil-repellent surface that repels oil.

(Item 2)
The one or other rotating component is either a cutter for cutting the material to be cut, a spacer for adjusting the spacing between the cutters, and a separator for separating the strip-shaped material. Item 1 The slitter device described in.

(Item 3)
A recess is formed on the first contact surface.
A different material made of a material different from that of the first contact surface is densely fitted in the recess.
The slitter device according to item 1 or 2, wherein the surface of the dissimilar material is the oil-repellent surface.

(Item 4)
The slitter device according to item 3, wherein the recess is a hole or a groove.

(Item 5)
The slitter device according to item 3 or 4, wherein the recess penetrates the one rotating component or has a bottomed shape.

(Item 6)
The one rotating component used in the slitter device according to any one of items 1 to 5.

According to the present invention, it is possible to easily separate the rotating parts while preventing deterioration of the positional accuracy of the rotating parts and galling of the parts. Further, according to the present invention, it is possible to reduce the possibility that the surface of the rotating component interferes with other members even when the automatic blade assembly is performed.

It is a partial cross-sectional view of the main part in the slitter device which concerns on 1st Embodiment of this invention. It is an enlarged cross-sectional view which corresponds to the part A of FIG. 1 and omitted a part. It is explanatory drawing in the state which the cutter used for the apparatus of FIG. 1 is seen from the side. It is sectional drawing of the cutter of FIG. It is explanatory drawing which enlarged the main part of FIG. It is explanatory drawing in the state which the spacer used for the apparatus of FIG. 1 is seen from the side. It is sectional drawing of the spacer of FIG. It is explanatory drawing for demonstrating the positional relationship between the concave part in the cutter of FIG. 3 and the concave part in the spacer of FIG. It is a front view of a dissimilar material. It is explanatory drawing for demonstrating the dissimilar material used for the slitter apparatus which concerns on 2nd Embodiment of this invention, and is the figure which showed only one side of the center line of the dissimilar material.

(First Embodiment)
Hereinafter, the slitter device (hereinafter, may be simply abbreviated as “device”) according to the first embodiment of the present invention will be described with reference to the accompanying drawings. This device is for cutting the sheet-shaped material to be cut 100 by using a plurality of rotating parts 3 arranged at predetermined intervals. As the material to be cut 100, a sheet-shaped metal material is used in the present embodiment, but the material is not particularly limited.

(Structure of this embodiment)
The apparatus of this embodiment includes an upper shaft 1, a lower shaft 2, and a plurality of rotating parts 3 attached to the respective shafts 1 and 2 as main components (see FIG. 1).

(Upper axis)
The upper shaft 1 is rotated around an axis by a driving means (not shown). The rotating component 3 attached to the upper shaft 1 rotates in the same direction as the upper shaft 1 rotates.

(Lower axis)
Like the upper shaft 1, the lower shaft 2 is rotated around an axis by a driving means (not shown). However, the rotation direction of the lower shaft 2 is opposite to that of the upper shaft 1. The rotating component 3 attached to the lower shaft 2 rotates in the same direction as the lower shaft 2 rotates.

(Rotating parts)
The rotating component 3 of the present embodiment is composed of a plurality of cutters 4 and spacers 5 arranged adjacent to each other (see FIG. 2).

(Cutter)
The cutter 4 is formed in the shape of a hollow disk (see FIGS. 3 and 4). The edge (blade) of the cutter 4 is formed by sandwiching the material 100 to be cut (see FIGS. 1 and 2) between the edge (blade) of the cutter 4 attached to the other shaft and the material 100 to be cut. Can be cut to form a strip-shaped material (not shown) having a predetermined width.

The cutter 4 in the present embodiment includes a first end surface 41 and a second end surface 42 at both ends in the axial direction thereof. In the example of FIG. 2, in the cutter 4 at the right end in the drawing, the second end surface 42 is in close contact with the spacer 5, and in the cutter 4 at the left end in the figure, the first end surface 41 is in close contact with the spacer 5. The second end surface 42 of the cutter 4 at the right end in the drawing is in close contact with another adjacent spacer 5 (see FIG. 1). In this example, of the first end surface 41 and the second end surface 42, the one in contact with the adjacent rotating component 3 (cutter 4 or spacer 5) corresponds to the first contact surface in the present invention and faces the first contact surface. It is assumed that this corresponds to the second contact surface. This correspondence may be arbitrary when both end faces are in contact with adjacent rotating parts.

Hole-shaped recesses 43 are formed in the first end surface 41 and the second end surface 42 of the cutter 4. The number of the recesses 43 is set to 6 in the present embodiment, but the number is not limited. Further, these recesses 43 are formed at positions equidistant from the axis of the cutter 4 (on concentric circles). However, the position of the recess 43 does not have to be equidistant from the axis of the cutter 4, and can be equidistant.

As shown in FIGS. 4 and 5, the recess 43 is a through hole, and both end faces of the cutter 4 are open. Further, the inner surface of the recess 43 is a cylindrical surface, and two enlarged diameter portions 44 extending in the circumferential direction about the axis of the recess 43 are formed on the inner surface. However, the number of the enlarged diameter portions 44 is not limited, and may be one or three or more.

A dissimilar material 8 (described later) for forming an oil-repellent surface is attached to the recess 43. In addition, in FIGS. 4 and 5, the description of the dissimilar material 8 is omitted.

(Spacer)
Like the cutter 4, the spacer 5 is formed in the shape of a hollow disk (see FIGS. 6 and 7). The spacer 5 of this example is composed of a spacer main body 6 and a protective material 7 (see FIG. 2) arranged on the outer peripheral side thereof. In FIGS. 6 and 7, the description of the protective material 7 is omitted. The spacer body 6 is sandwiched between the cutters 4 so that the cutter 4 can be positioned (see FIGS. 1 and 2). The protective material 7 is made of, for example, a deformable synthetic resin. It is possible to omit the protective material 7.

The spacer main body 6 in the present embodiment includes a first end surface 61 and a second end surface 62 at both ends in the axial direction thereof. In the example of FIG. 2, in any of the spacers 5, the first end surface 61 and the second end surface 62 are in close contact with another adjacent rotating component (spacer or cutter). As for the spacer 5, of the first end surface 61 and the second end surface 62, the one in contact with the adjacent rotating component 3 (cutter 4 or spacer 5) corresponds to the first contact surface in the present invention, and is attached to the first contact surface. The facing surface corresponds to the second contact surface.

Similar to the cutter 4, hole-shaped recesses 63 are formed in the first end surface 61 and the second end surface 62 of the spacer 5 (see FIG. 7). Similar to the recess 43 of the cutter 4, a dissimilar material 8 (described later) is attached to the recess 63.

Similar to the recesses 43 of the cutter 4, the recesses 63 are concentrically arranged at predetermined intervals (see FIG. 6). However, the distance between the two in the radial direction is slightly different. The positional relationship between the two is schematically shown in FIG. In this example, the recess 63 of the spacer 5 is arranged slightly inside the recess 43 of the cutter 4.

(Dissimilar material)
The dissimilar material 8 of the present embodiment is housed in the recess 43 of the cutter 4 and the recess 63 of the spacer 5. FIG. 9 shows an example of the dissimilar material 8 housed in the recess 43.

The dissimilar material 8 is formed in a substantially columnar shape, and two flange portions 81 extending in the circumferential direction are formed on the side surface thereof. These flange portions 81 are housed in the enlarged diameter portion 44 (see FIG. 5) of the recess 43 so as to position the dissimilar material 8 with respect to the recess 43. The position and shape of the flange 81 is designed to match the position and shape of the corresponding enlarged diameter 44.

The shape of the dissimilar material 8 is such that both end faces of the dissimilar material 8 coincide with the open ends of the recess 43 when the dissimilar material 8 is fitted in the recess 43. That is, the end faces of the dissimilar material 8 are made flush with both end faces 41 and 42 of the cutter 4.

Further, as the material of the dissimilar material 8 of the present embodiment, an oil-repellent material is used. Examples of the oil-repellent material include synthetic resins having oil-repellent properties such as "nitrile-based resin" and "fluororesin mixed resin". However, it is not limited to these, and various materials having similar performance can be used. As a result, both end faces of the dissimilar material 8 of the present embodiment are made into oil-repellent surfaces that repel oil.

With the above configuration, in the present embodiment, at least a part of the first contact surface of the cutter 4 is provided with an oil-repellent surface that is arranged in the same surface as the first contact surface and repels oil. It has become.

The shape of the dissimilar material 8 fitted in the recess 63 is adjusted according to the shape of the recess 63, but since it has basically the same structure as the example of FIG. 9, detailed description thereof will be omitted. In the present embodiment, the dissimilar material 8 fitted in the recess 63 is arranged on at least a part of the first contact surface of the spacer 5 in the same surface as the first contact surface, and repels oil. It is equipped with an oil level.

(Operation of this embodiment)
Next, the operation of the device of the present embodiment described above will be described.

(Blade assembly)
First, the blade assembly will be described. As a premise, the rotating parts 3 (that is, the cutter 4 and the spacer 5) used for the blade assembly are arranged on the storage shelves and stored in a state where the adjacent end faces are in close contact with each other. In the case of automatic blade assembly, the rotating component 3 is grasped by the robot arm, slid in the radial direction, and pulled out to take out the rotating component 3 from the shelf. Here, in the above-mentioned conventional technique, the contact area between the end faces is reduced by the recess formed in the end face of the rotating component 3, but the recess interferes with the adjacent member, so that the rotating component 3 can be taken out. There was a risk of hindrance. On the other hand, in the present embodiment, since the end faces of the dissimilar materials 8 and the end faces of the cutter 4 and the spacer 5 are flush with each other, such a possibility can be reduced.

Further, in the apparatus of the present embodiment, since the end faces of the dissimilar materials 8 are made oil-repellent surfaces, it is possible to reduce the possibility that oil enters between the end faces of the adjacent rotating parts and adheres to each other.

(Disconnect)
After assembling the rotating parts 3 to the upper shaft 1 and the lower shaft 2 in a predetermined order, as shown in FIGS. 1 and 2, the material to be cut 100 is cut in the same manner as in the conventional case to form a strip. The material can be obtained.

In the apparatus of the present embodiment, the dissimilar material 8 is embedded in the recess 43 and the recess 63, and the oil-repellent surface of the dissimilar material 8 is flush with the end surface (contact surface) of the rotating component, so that oil and dust enter the recess. Never. Therefore, it is possible to reduce the possibility that the positional accuracy of the cutters and spacers arranged adjacent to each other is lowered. Further, when cutting chips get into the recesses, there is a risk of galling of the parts, and the apparatus of the present embodiment can reduce this risk.

Since this cutting process can be carried out basically in the same manner as the conventional one, further detailed description thereof will be omitted.

(Second Embodiment)
Next, the slitter device according to the second embodiment of the present invention will be described with reference to FIG. In the description of the second embodiment, the same reference numerals are used for the elements that are basically common to the first embodiment described above to simplify the description.

In the description of the first embodiment described above, a dissimilar material 8 composed of one columnar member was used. On the other hand, in the apparatus of the second embodiment, two dissimilar materials 82 and 83 composed of columnar members, respectively, were used. The end face of one dissimilar material 82 is flush with one end face of the cutter 4 (or spacer 5), and the end face of the other dissimilar material 83 is flush with the other end face of the cutter 4 (or spacer 5). It has become one.

A gap 84 is formed between the dissimilar material 82 and the dissimilar material 83. In addition, in FIG. 10, only one side of the center line of the dissimilar materials 82 and 83 which are rotationally symmetric is shown.

Since the other configurations and advantages in the second embodiment are basically the same as those in the first embodiment described above, further detailed description of the second embodiment will be omitted.

The content of the present invention is not limited to the above embodiment. The present invention may make various changes to a specific configuration within the scope of the claims.

For example, in each of the above-described embodiments, the recess 43 of the cutter 4 and the recess 63 of the spacer 5 are both hole-shaped, but can also be long grooves in one direction. The shape of the groove is not limited to a linear shape, but may be a curved shape.

Further, in each of the above-described embodiments, the recess 43 of the cutter 4 and the recess 63 of the spacer 5 are both configured by through holes, but a bottomed shape may be used. In this case, the oil-repellent surface of the dissimilar material 8 is located on the opening surface side of each recess.

Further, in each of the above-described embodiments, as the rotating component 3, a cutter for cutting the material to be cut and a spacer for adjusting the distance between the cutters are exemplified. However, the rotating component 3 may be a separator for separating the strip-shaped material produced by cutting.

Further, in each of the above-described embodiments, a recess is formed in the end surface (first contact surface) of the rotating component 3, and an oil-repellent surface is formed by fitting a different material into the recess. However, the oil-repellent surface may be formed by vapor deposition or other means. It is also conceivable to form all the end faces of the rotating component 3 on the oil-repellent surface.

Further, in each of the above-described embodiments, both are fixed by fitting the enlarged diameter portion 44 formed in the recess 43 and the flange portion 81 formed in the dissimilar material 8, but there is no particular limitation on this fixing structure. .. In short, any structure may be used as long as the dissimilar material 8 can be reliably fixed to the recess 43.

1 Upper shaft 2 Lower shaft 3 Rotating parts 4 Cutter 41 1st end surface (1st contact surface)
42 Second end surface (second contact surface)
43 Cutter recess 44 Diameter expansion 5 Spacer 6 Spacer body 61 First end surface (first contact surface)
62 Second end surface (second contact surface)
63 Spacer recess 7 Protective material 8 ・ 81 ・ 82 Dissimilar material 81 Flange 84 Gap 100 Material to be cut

Claims (5)

A slitter device for cutting a sheet-shaped material to be cut using a plurality of rotating parts arranged at predetermined intervals, or separating a strip-shaped material formed by cutting the material to be cut.
The plurality of rotating parts include one rotating part and another rotating part adjacent to the one rotating part.
The one rotating component includes a first contact surface that is brought into close contact with a second contact surface formed on the other rotating component.
At least a part of the first contact surface is provided with an oil-repellent surface that is arranged in the same surface as the first contact surface and repels oil .
A recess is formed on the first contact surface.
A different material made of a material different from that of the first contact surface is densely fitted in the recess.
A slitter device characterized in that the surface of the dissimilar material is the oil-repellent surface . The one or other rotating component is either a cutter for cutting the material to be cut, a spacer for adjusting the spacing between the cutters, and a separator for separating the strip-shaped material. The slitter device according to 1. The slitter device according to claim 1 or 2 , wherein the recess is a hole or a groove. The slitter device according to any one of claims 1 to 3 , wherein the recess penetrates the one rotating component or has a bottomed shape. The one rotating component used in the slitter device according to any one of claims 1 to 4 .

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