JP3379252B2 - Slitter touch roll support device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch roll supporting device for a slitter for sheet material, and more particularly to a touch roll supporting device for a slitter which uses touch rolls having different diameters according to the product width and the product type.

[0002]

2. Description of the Related Art As a slitter for a sheet-like material, for example, a slitter for plastic film, a touch roll is provided in a winding portion corresponding to each winding product, and each touch roll is wound while being pressed against each winding product. Things are known. In this type of slitter, the diameter of the touch roll may be changed according to the product take-up width, that is, the width of each roll-up product and the type of sheet-like material to be slit, for example, the thickness.

For example, in the slit of a plastic film, generally, a thinner product is often required to have a strict quality of the wound product. For such a demanding product, a touch roll having a small diameter is usually used. Often, the winding appearance is better. On the other hand, in the case of a thick film or a product having a wide width, a touch roll having a large diameter is generally suitable because the touch roll is required to have a rigidity that does not cause a large deflection.

In this way, it is possible to replace the touch roll with a different diameter according to the width and type of each rolled product.
It is extremely effective in improving the quality of each rolled product and improving the acceptance rate.

The touch roll is supported by a shaft portion or a bearing portion at both ends thereof, and is pressed against each winding product through the support portion. In the conventional slitter, each member for supporting the touch roll is provided with only one supporting portion. When the diameter of the touch roll changes, the diameters of the shaft and the bearing generally change accordingly, so conventionally, when a touch roll with a different diameter is attached to the one support part,
Each time, a mounting adapter dedicated to each touch roll was attached or the support member itself was replaced. Therefore, it takes time and effort to replace the touch roll,
There is a problem that the operating rate of the slitter is greatly reduced.

Further, as a pressing mechanism of the touch roll,
A mechanism is often adopted in which the bearings at both ends of the touch roll are supported by a pair of arms, and the pair of arms are oscillatably biased toward the rolled product pressing side. In such a pressing mechanism,
As described above, if the number of supporting parts of the touch roll bearing is one, the position of the axis of the touch roll is always constant even if the diameter of the touch roll is changed. Therefore, as the diameter of the touch roll changes, the positional relationship between the touch roll and the winding product, more accurately, the positional relationship between the outer peripheral surface of the touch roll and the outer peripheral surface of the winding product, deviates from the desired relationship. Sometimes. In such a situation, the quality improvement of the rolled product,
Or it is not preferable for quality maintenance.

[0007]

It is an object of the present invention to pay attention to the problems in the prior art as described above, to significantly reduce the time required for touch roll replacement, to facilitate the replacement work, and An object of the present invention is to provide a support device for a touch roll that can maintain a substantially constant positional relationship with a rolled product even in a touch roll and can improve the quality of the rolled product.

[0008]

A touch roll supporting device for a slitter according to the present invention, which is directed to the above object, includes a shaft portion or a bearing of a touch roll which is provided in a winding portion of a slitter for sheet material and is pressed by each winding product. And a plurality of grooves in which a shaft portion or a bearing portion of a touch roll having different diameters can be mounted are provided in one support member.

The plurality of grooves have, for example, a semi-cylindrical surface on which the shaft portion or the bearing portion is mounted, and the central axis positions of the semi-cylindrical surfaces are different from each other. Also,
The positions of the plurality of grooves may be different from each other in the axial direction of the touch roll within the support member.

The above-mentioned structure according to the present invention is optimally applied to a slitter for a plastic film.

[0011]

In the touch roll supporting device for the slitter according to the present invention, the shaft portion or the bearing portion of the different diameter touch roll is mounted in one supporting member, and a plurality of grooves for supporting the shaft portion or the bearing portion are provided. Therefore, each touch roll is supported via the corresponding groove. Therefore, when replacing the touch roll, basically you only have to install the shaft or bearing of the touch roll to be used in the corresponding groove, the time required for replacement is greatly shortened, and the replacement work is greatly facilitated. Be converted.

Further, when the different diameter touch rolls are respectively supported by the corresponding grooves at the positions of the plurality of grooves, the positional relationship between the touch roll and the winding product is substantially maintained even if the diameter of the touch roll is changed. By setting the positions such that the same relationship is maintained, it becomes possible to maintain the positional relationship between the touch roll and the winding product constant regardless of the type of the touch roll. As a result, even if the width or type of the rolled product is changed, a stable winding state can be maintained at all times, and the product quality and winding appearance can be kept good.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a touch roll supporting device for a slitter according to the present invention will be described below with reference to the drawings.
1 to 3 show a winding section of a plastic film slitter to which the present invention is applied. In the figure,
Reference numeral 1 denotes a plastic film as a sheet, and the film 1 is cut into a plurality of strips corresponding to the product width in the width direction by a cutting device (not shown).
After passing through the guide rolls 2 and 3, the film 1 is wound into a roll as a wound product 5 at the left and right winding sections 4.

The touch rolls 6 are pressed against the surface of each rolled product 5 during winding. The touch roll 6 is supported by the left and right arms 8 via a support member 7 that supports a shaft portion or a bearing portion thereof. The arm 8 is swung, and the touch roll 6 is pressed against the surface of the winding product 5 by a pressing means such as an air cylinder 9. This pressing force is adjusted by the air pressure of the air cylinder 9. Each rolled product 5
The winding core 10 is rotatably supported by the left and right winding arms 11, and is rotationally driven by a motor or the like.

In such a slitter, the present invention is applied to the support member 7 portion. That is, as shown in FIGS. 4 and 5, a plurality of (two in this embodiment) grooves 13a in which the bearing portions 12a and 12b of the touch rolls 6a and 6b having different diameters can be mounted in one support member 7. 1
3b is provided. As shown in FIG. 5, the grooves 13a and 13b have semi-cylindrical surfaces 14a and 14b on which the bearing portions 12a and 12b are mounted, and the grooves 13a and 13b are
The bearings 12a and 12b are opened upward or laterally so that they can be inserted from upward or laterally. Also, the groove 13
The positions of a and 13b are different (shifted) from each other in the touch roll axial direction XX.

The structure of the bearing portion of the touch roll 6 may be the structure shown in either FIG. 6 or FIG. That is, in the structure shown in FIG. 6, the bearing 15 is attached to the shaft end of the touch roll 6, and this bearing 15 constitutes a bearing portion. In the structure shown in FIG. 7, a bearing 17 is attached to the inner end of the roll ring 16 of the touch roll, and the roll ring 16 is mounted on the shaft 18 penetrating the touch roll via the bearing 17.
Is rotatably supported. A ring-shaped support piece 19 is fixed to the end of the shaft 18, and the support piece 19 constitutes the shaft portion of the touch roll supported in the groove according to the present invention. Therefore, in the present invention, either the shaft portion or the bearing portion as described above may be supported in the groove.

Further, in FIG. 4, the bearing portion 12b of the touch roll 6b is shown as a member joined to the shaft end of the touch roll 6b. Thus, the shaft portion or the bearing portion is constituted as a roll shaft extension member. It is also possible to do so.

Furthermore, as a more specific shape of the above-mentioned support member 7, the shape shown in FIGS. 8 and 9 can be cited. In FIG. 8 and FIG. 9, two different grooves 22a and 22b are formed inside the support member 21, and the shaft portion or the bearing portion of the touch roll having different diameters as described above is formed in each groove 22a and 22b. Are supported respectively. Groove 2
2a and 22b are provided with screw holes 23a and 23b for lock bolts for fixing the shaft portion or the bearing portion of the mounted touch roll from the outer peripheral surface side. 24
Reference numerals a and 24b are bolt mounting holes for fixing the support member 21 to the arm 8.

The operation of the touch roll supporting device as described above will be proved with reference to FIGS. As described above, the touch rolls 6a and 6b having different diameters are exchanged according to the take-up width, the film thickness and the type of the wound product 5. To attach the touch rolls 6a and 6b, it suffices to simply mount the bearing portions 12a and 12b in the corresponding grooves 13a and 13b, and it is necessary to replace the support member 7 itself or the roll bearing adapter and the like. Since it does not exist, it is carried out in an extremely short time, and the replacement work is extremely easy.

Further, even if the touch rolls 6a, 6b are exchanged, the respective grooves 13a, 13b are arranged so that the positional relationship between the touch rolls 6a, 6b and the winding product 5 does not substantially change.
By setting the position of, the positional relationship between the touch roll and the winding product can always be kept constant even with a touch roll having a different diameter. Therefore, it is possible to maintain a substantially constant optimum winding state (winding condition).

Although the number of the grooves 13a and 13b is two in the above embodiment, the number may be further increased depending on the type of the different diameter touch roll.

[0022]

As described above, in the touch roll supporting device for the slitter according to the present invention, since a plurality of supporting grooves corresponding to the bearings of the different diameter touch rolls are provided in each supporting member, the touch roll is provided. At the time of replacement, it suffices to simply install the bearing part of the touch roll in the corresponding groove, and the replacement time is greatly shortened, the slitter operation rate is greatly improved, and the replacement work is also greatly facilitated. It

Further, by appropriately setting the groove forming position, the positional relationship between each touch roll and the product to be wound can be kept substantially constant even for a touch roll having a different diameter, and stable winding and , It is possible to improve the quality of rolled products.

[Brief description of drawings]

FIG. 1 is a schematic side view of a winding unit of a slitter according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of the winding unit of FIG.

FIG. 3 is a partially enlarged side view of the winding unit in FIG.

FIG. 4 is an enlarged plan view of the touch roll support portion of FIG.

5 is a schematic front view of the support member of FIG.

FIG. 6 is a cross-sectional view showing an aspect of a touch roll bearing portion.

FIG. 7 is a cross-sectional view showing another aspect of the touch roll bearing portion.

FIG. 8 is a cross-sectional view showing a specific example of a support member.

9 is a front view of the support member of FIG.

[Explanation of symbols]

1 Plastic film as a sheet 4 winding section 5 Rolled product 6,6a, 6b Touch roll 7, 21 Support member 12a, 12b Touch roller bearing 13a, 13b, 22a, 22b groove 14a, 14b Semi-cylindrical surface

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 62-235156 (JP, A) JP 62-285853 (JP, A) Actual 63-161247 (JP, U) Actual flat 3- 100966 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65H 18/16 B65H 18/10

Claims (4)

(57) [Claims] 1. A support device for a shaft portion or a bearing portion of a touch roll which is provided in a winding portion of a slitter for a sheet material and is pressed by each rolled product, wherein the shaft portion or bearing of the touch roll having different diameters from each other. A touch roll supporting device for a slitter, comprising a plurality of grooves capable of mounting parts in one supporting member. 2. The touch of the slitter according to claim 1, wherein the plurality of grooves have a semi-cylindrical surface on which the shaft portion or the bearing portion is mounted, and the central axis positions of the semi-cylindrical surfaces are different from each other. Roll support device. 3. The touch roll supporting device for a slitter according to claim 1, wherein the positions of the plurality of grooves are different from each other in the axial direction of the touch roll within the supporting member. 4. The touch roll supporting device for a slitter according to claim 1, wherein the sheet-like material is a plastic film.