JP2023166172A - Slitter device - Google Patents

Abstract

To disclose one example of slitter devices which can cut a sheet-like cutting-target, appropriately by a slitter blade.SOLUTION: A slitter device 1 comprises: a first roller 3A and a second roller 3B which come in contact with a cutting-target fa and rotate thereby transporting the cutting-target fa; and a cutter 5 having a slitter blade 5B which cuts the cutting-target fa, in a direction parallel to a transportation direction. The second roller 3B arranged at a downstream side in the transportation direction of the cutter 5 rotates at a circumferential velocity larger than a circumferential velocity of the first roller 3A arranged at an upstream side in the transportation direction of the cutter 5. Consequently, tensile force parallel to the transportation direction is generated in the cutting-target fa by difference between circumferential velocity of the first roller 3A and that of the second roller 3B, the cutting-target fa can be therefore cut appropriately by the slitter blades 5A and 5B.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a slitter device that cuts a sheet-like object to be cut.

For example, the slitter device described in Patent Document 1 cuts a long object (for example, an adhesive tape) wound into a roll with a slitter blade while feeding it out from an uncoiler, and Wind up something with a winder.

By the way, in order to appropriately cut the object to be cut with the slitter blade, the contact state between the slitter blade and the object to be cut needs to be in an appropriate state.
For this reason, in the slitter device described in Patent Document 1, by applying tension to the object to be cut using an uncoiler and a winder, at least the portion of the object to be cut that comes into contact with the slitter blade is widened and extended. Hereinafter, "spreading out" is also referred to as "expanding."

JP2012-102220A

However, since the length of the sheet-like cutting object parallel to the conveyance direction is extremely small compared to the long cutting object, it is necessary to unroll the cutting object using an uncoiler and a winder. is practically impossible. Therefore, in a slitter device using an uncoiler and a winder, it is virtually impossible to appropriately cut a sheet-shaped object to be cut with the slitter blade.

In view of the above points, the present disclosure discloses an example of a slitter device that can appropriately cut a sheet-shaped object to be cut using a slitter blade.

It is desirable that a slitter device that cuts a sheet-like cutting object (fa) include at least one of the following constituent requirements, for example.
That is, the constituent elements are a first roller (3A) that rotates in contact with the object to be cut (fa), a first roller (3A) that conveys the object to be cut (fa), and a first roller (3A) that rotates in contact with the object to be cut (fa); A cutter (5) is arranged downstream of the cutter (3A) in the conveyance direction and has a slitter blade (5B) that cuts the object (fa) to be cut in a direction parallel to the conveyance direction, and the cutter (5) is conveyed from the cutter (5). A second roller (3B) that is disposed on the downstream side in the direction and conveys the object to be cut (fa) by rotating in contact with the object to be cut (fa), the circumferential speed of the first roller (3A) and a second roller (3B) that rotates at a higher circumferential speed.

As a result, in the slitter device, tension parallel to the conveying direction is generated in the object to be cut (fa) due to the difference in circumferential speed between the first roller (3A) and the second roller (3B). In other words, the portion of the object to be cut (fa) located between the first roller (3A) and the second roller (3B) is in an expanded state.

Therefore, the part of the object to be cut (fa) that comes into contact with the slitter blade (5B) is an expanded part, so the object to be cut (fa) can be appropriately cut by the slitter blade (5B). It can be.

Note that the slitter device may have the following configuration, for example.
That is, by generating an air pressure difference between one side in the thickness direction of the object to be cut (fa) and the other side in the thickness direction of the object to be cut (fa), the object to be cut (fa) is transferred to the slitter blade (5B). It is desirable to provide a pressure welder (7) for pressure contact.

Thereby, the contact state between the slitter blade (5B) and the object to be cut (fa) can be in an appropriate state, so that it may be possible to appropriately cut the object to be cut (fa).
Furthermore, it is provided with two guide parts (9) that contact one end and the other end in the width direction of the object to be cut (fa), and the two guide parts (9) are used for cutting when entering the cutter (5). It is desirable that at least one of the attitude and the direction of entry of the object (fa) can be corrected.

Thereby, the contact state between the slitter blade (5B) and the object to be cut (fa) can be in an appropriate state, so that it may be possible to appropriately cut the object to be cut (fa). Note that the width direction of the object to be cut (fa) refers to a direction orthogonal to the thickness direction and the conveyance direction of the object to be cut (fa).

Incidentally, the above reference numerals in parentheses are an example showing the correspondence with the specific configurations described in the embodiments described later, and the present disclosure is not limited to the specific structures shown in the above parentheses. .

FIG. 2 is a side view of the slitter device according to the first embodiment. FIG. 2 is a top view of the slitter device according to the first embodiment.

The following "Embodiments of the Invention" represents an example of an embodiment that falls within the technical scope of the present disclosure. In other words, the matters specifying the invention described in the claims are not limited to the specific configurations and structures shown in the embodiments below.

Arrows, diagonal lines, etc. indicating directions attached to each figure are provided to make it easier to understand the relationship between the figures and the shapes of members or parts. Therefore, the slitter device according to this embodiment is not limited to the directions shown in each figure.

At least one member or portion is provided with at least a reference numeral, unless otherwise specified such as "one". Furthermore, the slitter device comprises at least the components described and labeled, as well as the structural parts shown.

(First embodiment)
<1. Overview of slitter equipment>
In this embodiment, the slitter device according to the present disclosure is applied to a slitter device that cuts a sheet-like object to be cut. In this embodiment, for example, textiles, films, nonwoven fabrics, paper, metals, rubber, natural leather, synthetic leather, and the like are assumed to be objects to be cut.

Note that the woven fabric includes woven fabrics made of natural fibers or chemical fibers, woven fabrics made of glass fibers or carbon fibers, and the like. The term "sheet-like" refers to an object such as offcuts that is difficult to wind up with a winder of a conventional slitter device.

<2. Slitter device configuration>
As shown in FIG. 1, the slitter device 1 according to the present embodiment includes at least a conveyance roller 3, a cutter 5, a pressure welder 7, and the like.

<Conveyance roller>
The conveying roller 3 is a cylindrical or cylindrical rotating body that conveys the cutting object fa by rotating in contact with the cutting object fa. The conveyance roller 3 according to the present embodiment includes at least two conveyance rollers 3A and 3B that rotate in contact with the object to be cut fa.

The conveyance roller 3A (hereinafter referred to as the first roller 3A) is arranged upstream of the cutter 5 in the conveyance direction. The conveyance roller 3B (hereinafter referred to as the second roller 3B) is arranged downstream of the cutter 5 in the conveyance direction. The second roller 3B rotates at a circumferential speed greater than the circumferential speed of the first roller 3A.

In addition, in this embodiment, the outer diameter dimension of the first roller 3A and the outer diameter dimension of the second roller 3B are the same. Therefore, in this embodiment, the second roller 3B rotates at a higher rotational speed than the first roller 3A. Specifically, the first roller 3A and the second roller 3B rotate by receiving driving force from the same electric motor (not shown).

A transmission mechanism (not shown) that transmits rotational force from the electric motor to the first roller 3A and a transmission mechanism (not shown) that transmits rotational force from the electric motor to the second roller 3B have respective reduction ratios. Alternatively, the above rotational speed difference is realized by a difference in speed increasing ratio.

Note that a guide support plate is provided on the opposite side of the first roller 3A and second roller 3B (hereinafter, when these rollers 3A and 3B are collectively referred to as the conveyance roller 3) across the cutting target fa. 3C is placed.

The guide support plate 3C is a plate-shaped member that cooperates with the conveyance roller 3 to convey the object to be cut fa. That is, the guide support plate 3C is a member that supports the object to be cut fa from below and can come into sliding contact with the object to be cut fa. Then, the conveying roller 3 applies a force to move the cutting object fa with respect to the guide support plate 3C, that is, a conveying force to the cutting object fa.

<Cutting device>
The cutter 5 is disposed downstream of the first roller 3A in the conveyance direction and upstream of the second roller 3B in the conveyance direction. The cutter 5 is configured to include at least slitter blades 5A and 5B that cut the object to be cut fa in a direction parallel to the conveying direction.

The cutter 5 according to the present embodiment is a shear cut (also referred to as "shear cut") type cutter. Specifically, the slitter blade 5A is a disc-shaped blade arranged on one side in the thickness direction of the object to be cut fa (in FIG. 1, on the upper surface side of the object to be cut fa).

The slitter blade 5B is a disc-shaped blade arranged on the other side in the thickness direction of the object to be cut fa (in FIG. 1, on the lower surface side of the object to be cut fa). Then, the slitter blade 5A and the slitter blade 5B are rubbed together like scissors to cut the object fa.

In this embodiment, the slitter blade 5B is rotationally driven in conjunction with the rotation of the conveyance roller 3. Since the slitter blade 5A is supported so as to be freely rotatable, it rotates in accordance with the movement of the object to be cut fa.

Note that the cutter 5 according to this embodiment has a plurality of slitter blades 5A and 5B, as shown in FIG. The slitter blades 5A and 5B are arranged in series at equal intervals along the width direction of the object to be cut fa.

The width direction of the object to be cut fa refers to a direction orthogonal to the thickness direction and the conveyance direction of the object to be cut fa. That is, the width direction is a direction parallel to the rotation center axis of each of the first roller 3A and the second roller 3B.

<Pressure welder>
The pressure welder 7 is a device that presses the object to be cut fa against the slitter blade 5A or 5B (in this embodiment, the slitter blade 5B). That is, the pressure welding device 7 generates an air pressure difference between one side in the thickness direction of the cutting object fa passing through the cutting device 5 and the other side in the thickness direction of the cutting object fa, so that the cutting object fa can be moved by the slitter blade. Press it against 5B.

In the pressure welding device 7 according to this embodiment, the atmosphere of the slitter blade 5B is sucked by a suction device 7A such as a blower. As a result, the air pressure on the lower surface side of the object to be cut fa passing through the cutter 5 becomes lower than that on the upper surface side of the object to be cut fa, so that the above-mentioned air pressure difference occurs.

As shown in FIG. 2, an elongated hole-shaped intake port 7B is provided at a portion of the guide support plate 3C corresponding to each slitter blade 5A, 5B. As a result, when the suction device 7A sucks air, the object to be cut fa passing through the cutter 5 is attracted toward the guide support plate 3C and comes into pressure contact with the slitter blade 5B.

Note that "bringing the object to be cut fa into pressure contact with the slitter blade 5B" means bringing the object to be cut fa into contact with the slitter blade 5B so that the contact surface pressure between the object fa and the slitter blade 5B becomes a pressure suitable for cutting. Incidentally, if the contact surface pressure between the object to be cut fa and the slitter blade 5B is too small, the object to be cut fa cannot be appropriately cut.

<Guide section>
As shown in FIG. 2, the slitter device 1 according to this embodiment includes a guide section 9. As shown in FIG. The guide section 9 is a member for correcting the attitude and direction of the object to be cut fa when it enters the cutter 5.

Specifically, the guide section 9 includes a first guide section 9A, a second guide section 9B, and the like. The first guide portion 9A is a member having a guide surface that slides into contact with one end in the width direction of the object to be cut fa. The second guide portion 9B is a member having a guide surface that slides into contact with the other end in the width direction of the object to be cut fa.

The distance between the guide surface of the first guide section 9A and the guide surface of the second guide section 9B becomes smaller toward the downstream side in the conveyance direction. In other words, the distance becomes smaller as the distance approaches the cutting device 5. Note that the above distance is a dimension in a direction parallel to the width direction of the object to be cut fa.

In this embodiment, both of the two guide surfaces are inclined with respect to the conveyance direction (left-right direction in the paper). Furthermore, the first guide part 9A and the second guide part 9B are fixed to the guide support plate 3C so that the above-mentioned distance can be changed.

Specifically, each of the first guide portion 9A and the second guide portion 9B is pressed and fixed to the guide support plate 3C by a fixture 9C. Bolts 9D that generate a fixing force on each fixture 9C are inserted into elongated holes 3D provided in the guide support plate 3C.

Therefore, the administrator who manages the slitter device 1 loosens the bolt 9D and moves the bolt 9D within the elongated hole 3D, thereby increasing the width of each fixture 9C, that is, the first guide portion 9A and the second guide portion 9B. can be moved in the direction.

<3. Features of the slitter device according to this embodiment>
In this embodiment, the second roller 3B located downstream of the first roller 3A in the conveyance direction rotates at a circumferential speed greater than the circumferential speed of the first roller 3A. As a result, in the slitter device 1 according to the present embodiment, tension parallel to the conveying direction is generated in the cutting object fa due to the difference in circumferential speed between the first roller 3A and the second roller 3B.

In other words, the portion of the object to be cut fa located between the first roller 3A and the second roller 3B is in an expanded state. Therefore, the portions of the object to be cut fa that come into contact with the slitter blades 5A and 5B are expanded portions, so that the object to be cut fa can be appropriately cut by the slitter blades 5A and 5B.

The slitter device 1 includes a presser 7 that presses the object to be cut fa against the slitter blade 5B. Thereby, the contact state between the slitter blade 5B and the object to be cut fa can be brought into an appropriate state, so that it may be possible to appropriately cut the object to be cut fa.

That is, when the object to be cut fa is cut while being conveyed, a state occurs in which the object to be cut fa contacts the second roller 3B and does not contact the first roller 3A. In this state, tension cannot be applied to the object fa to be cut.

However, in this embodiment, since the pressure welding device 7 that presses the object to be cut fa against the slitter blade 5B is provided, even if it is not possible to apply tension to the object to be cut fa, the object to be cut fa can be brought into contact with the slitter blade 5B. It may be possible to cut it properly.

The slitter device 1 includes a first guide section 9A and a second guide section 9B, and the first guide section 9A and the second guide section 9B are configured to control the posture and orientation of the object fa to be cut when entering the cutter 5. The direction of entry can be corrected. As a result, it may be possible to bring the contact state between the slitter blades 5A, 5B and the object to be cut fa into the appropriate state intended by the inventor at the time of design, so that it is possible to appropriately cut the object to be cut fa. obtain.

(Other embodiments)
In the embodiment described above, each of the first roller 3A and the second roller 3B was composed of one roller. However, the present disclosure is not limited thereto. That is, in the disclosure, for example, at least one of the first roller 3A and the second roller 3B may be constituted by a plurality of rollers.

In the embodiment described above, the outer diameter of the first roller 3A and the outer diameter of the second roller 3B were the same. However, the present disclosure is not limited thereto. That is, the disclosure provides a configuration in which, for example, the outer diameter of the second roller 3B is larger than the outer diameter of the first roller 3A, and the first roller 3A and the second roller 3B rotate at the same rotational speed. Good too.

The cutter 5 according to the embodiment described above was of a shear cut type. However, the present disclosure is not limited thereto. That is, the disclosure may be, for example, a razor cut method or a score cut method.

In the above-described embodiment, the cutting object fa is conveyed while being sandwiched between the conveying roller 3 and the guide support plate 3C. However, the present disclosure is not limited thereto.
That is, in the disclosure, for example, the guide support plate 3C is abolished, and rollers that sandwich the cut object fa in cooperation with the conveyance roller 3 are arranged at positions facing the conveyance roller 3 with the cut object fa interposed therebetween. It may be a configuration in which

The guide section 9 according to the above-described embodiment was able to correct the attitude and entry direction of the object to be cut fa. However, the present disclosure is not limited thereto. That is, in the disclosure, for example, the guide section 9 may be configured to be able to correct the attitude or the direction of entry of the object to be cut fa.

In the embodiment described above, the guide surfaces of the first guide section 9A and the second guide section 9B are both inclined with respect to the conveyance direction. However, the present disclosure is not limited thereto. That is, in the disclosure, for example, only one of the two guide surfaces may be inclined with respect to the transport direction.

In the embodiment described above, the first guide part 9A and the second guide part 9B are fixed to the guide support plate 3C so that the distance between them can be changed. However, the present disclosure is not limited thereto.

That is, the disclosure discloses, for example, a configuration that includes an actuator that detects the width dimension of the object to be cut fa using a sensor and moves the first guide section 9A and the second guide section 9B according to the detected dimension, or The configuration may be such that the first guide portion 9A and the second guide portion 9B are eliminated.

The pressure welder 7 according to the above-described embodiment generates the above-mentioned pressure difference by sucking air from one side in the thickness direction or the other side in the thickness direction of the object to be cut fa. However, the present disclosure is not limited thereto. In other words, the disclosure discloses, for example, a configuration in which air is blown to one side in the thickness direction or the other side in the thickness direction of the object to be cut fa to increase the air pressure on either side to generate the above air pressure difference. good.

In the above embodiment, the slitter blade 5B was rotationally driven, and the slitter blade 5A was driven to rotate. However, the present disclosure is not limited thereto. That is, the disclosure may be, for example, a configuration in which the slitter blades 5A and 5B are both rotationally driven, or a configuration in which the slitter blade 5A is rotationally driven and the slitter blade 5B is driven to rotate.

In the slitter device 1 according to the above-described embodiment, the second roller 3B has a first function of rotating at a circumferential speed greater than the circumferential speed of the first roller 3A, and the slitter blade 5B uses the pressure difference to move the object fa to be cut. It was equipped with a second function to press into contact with the However, the present disclosure is not limited thereto. That is, the disclosure may be, for example, a slitter device having only one of the first function and the second function.

In the above-described embodiment, the structure was such that the worker inputs the object to be cut fa into the slitter device 1. However, the present disclosure is not limited thereto. That is, the disclosure discloses, for example, a placing section on which a plurality of objects to be cut fa are placed, and the objects to be cut fa placed on the placing section are sequentially supplied to the cutter 5 one by one. The slitter device may be equipped with a feeder mechanism.

Furthermore, the present disclosure is not limited to the above-described embodiments as long as it conforms to the spirit of the disclosure described in the above-described embodiments. Therefore, in a configuration in which at least two of the above-mentioned embodiments are combined, or in the above-mentioned embodiment, any of the illustrated structural features or the structural features described with reference numerals are abolished. It may be a configuration in which

1... Slitter device 3... Conveyance roller 3A... First roller 3B... Second roller 3C... Guide support plate 5... Cutting device 5A, 5B... Slitter blade 7... Pressure welding device 7A... Suction device 9... Guide part 9A... First guide Part 9B... Second guide part fa... Object to be cut

Claims (7)

In a slitter device that cuts sheet-like objects,
a first roller that rotates in contact with the object to be cut and that conveys the object to be cut;
a cutter having a slitter blade that is disposed downstream of the first roller in the conveyance direction and cuts the object to be cut in a direction parallel to the conveyance direction;
a second roller disposed downstream of the cutter in the conveying direction and conveying the object to be cut by rotating in contact with the object to be cut, the roller rotating at a circumferential speed greater than the circumferential speed of the first roller; A slitter device comprising: a second roller for slitter; The slitter according to claim 1, further comprising a pressure welder that presses the object to be cut against the slitter blade by generating an air pressure difference between one side in the thickness direction of the object to be cut and the other side in the thickness direction of the object to be cut. Device. When the thickness direction of the cutting object and the direction perpendicular to the transport direction are the width direction of the cutting object, the cutting object is provided with two guide parts that contact one end and the other end in the width direction of the cutting object,
The slitter device according to claim 1 or 2, wherein the two guide parts are capable of correcting at least one of the attitude and the direction of entry of the object to be cut when entering the cutter. In a slitter device that cuts sheet-like objects,
a conveyance roller that conveys the object to be cut by rotating in contact with the object to be cut;
a cutter having a slitter blade that cuts the object to be cut in a direction parallel to the conveying direction;
A slitter device comprising: a pressure welder that presses the object to be cut against the slitter blade by generating an air pressure difference between one side in the thickness direction of the object to be cut and the other side in the thickness direction of the object to be cut. 5. The slitter device according to claim 4, wherein the pressure welder causes the object to be cut to come into pressure contact with the slitter blade by sucking air on one side in the thickness direction or the other side in the thickness direction to generate the pressure difference. When the thickness direction of the cutting object and the direction perpendicular to the transport direction are the width direction of the cutting object, the cutting object is provided with two guide parts that contact one end and the other end in the width direction of the cutting object,
The slitter device according to claim 4 or 5, wherein the two guide parts are capable of correcting at least one of the posture and the direction of entry of the object to be cut when entering the cutter. The conveyance roller includes at least a first roller disposed upstream of the cutter in the conveyance direction, and a second roller disposed downstream of the cutter in the conveyance direction,
Furthermore, the slitter device according to claim 4 or 5, wherein the second roller rotates at a circumferential speed higher than the circumferential speed of the first roller.

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