JPH068983Y2 - Scrap removal device for skinning machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention reduces the thickness of various types of leather (including leather-like products such as synthetic resin and rubber) used for shoes, bags, bags, belts and the like. The present invention relates to a device for removing scraps of a peeling machine used for cleaning.

[Prior Art] Generally, in this type of skinning machine, leather is fed by a feed roller between a high-speed rotating cylindrical knife and a presser ruler arranged on the outer side thereof, and the edge of the cylindrical knife cuts the leather. The back side is scraped off to reduce the thickness of the leather, but since the scraped scraps are stripped and swung around at high speed, the scraps become entangled around the feed roller and become a major obstacle to the skinning work. ing.

This scrap is removed downwards between the inner surface of the cylindrical knife and the feed roller, but if the leather is flexible, the scrap is entangled around the feed roller and re-cylindrical. Since it enters between the knife and the feed roller, there is a problem that the leather cannot be fed smoothly or the thickness dimension is changed.

In order to deal with such a problem, conventionally, a measure has been taken in which a leather chip removing plate is pressed against the outer peripheral surface of the feed roller by a spring below the feed roller. Since the debris entangles with the support members and coil springs, the operator must stop the machine frequently to check the entangled state of the debris, and if there is entanglement, remove it each time, which is extremely troublesome. Work efficiency is not good.

On the other hand, as disclosed in Japanese Utility Model Publication No. 62-36835, there is a debris removing means in which a brush is coaxially attached to the inside of a cylindrical knife and the outer peripheral surface of the feed roller is swept by the brush. Already developed by people. This method has an excellent advantage that the entanglement of scraps can be efficiently removed because the outer peripheral surface of the feed roller is swept in a substantially circumferential direction by a brush that is rotated at high speed together with a cylindrical knife. It is difficult to completely prevent the accumulation of fine chips, etc. inside the knife.

[Object of the Invention] An object of the present invention is to provide a device for removing scraps of a skinning machine, which can remove such scraps almost completely by extremely simple means.

[Summary of the Invention] The gist of the present invention for achieving the above object is to arrange a feed roller having an arcuate convex portion on the outer peripheral surface with a slight gap inside the edge of a cylindrical knife that rotates at high speed. In a skinning machine in which the back side of the leather fed by the feed roller is strained by the cylindrical knife, a material having a small friction coefficient and good heat resistance is formed on a part of the inner peripheral surface of the cylindrical knife. A debris removing device for a skin filter, wherein the debris removing member is elastically pressed.

[Embodiment of the Invention] The present invention will be described in detail based on the illustrated embodiment.

1 to 3 show the essential parts of a skinning machine to which the present invention is applied, FIG. 1 is a sectional view, FIG. 2 is a front view seen from the direction A in FIG. 1, and FIG. 3 is a plan view. It is a figure. In these drawings, a cylindrical knife 1 for grinding leather, a feed roller 2 having an outer peripheral surface arranged in the inside thereof in a so-called barrel shape having an arcuate convex portion, and an arcuate end surface adapted to the outer shape of the cylindrical knife 1 are shown. The presser ruler 3, the soundproof plate 4, and the like that it has are well-known members that are used in conventional general skinning machines.

Then, as shown in FIG. 1, the material leather 5 is fed between the cylindrical knife 1 and the pressing ruler 3 by the feed roller 2, and the edge 5a of the cylindrical knife 1 rotating at a high speed makes a gap between the leather 5 and the pressing ruler 3. It is well known that the leather 5 is made into a product with a corresponding thickness. The gap between the edge 1a of the cylindrical knife 1 and the pressing ruler 3 is adjustable, and the feed roller 2 is elastic so that the gap S between the inner surface of the edge 1a and the outer peripheral surface of the feed roller 2 can be slightly enlarged. Supported by the public.

Further, as shown in FIGS. 1 and 2, a brush plate 7 having a brush 6 is placed on the soundproof tray 4, and is attached coaxially with the cylindrical knife 1 by a brush attaching screw 8, and the brush 6 feeds the roller. Sweeping the outer peripheral surface of No. 2 is also disclosed in Japanese Utility Model Publication No. 62-36835.

Further, in order to remove the debris adhered around the feed roller 2, as shown in FIG. 3, the existing arm 11 of the base 10 holding the feed roller 2 is used to remove the debris on the upper surface thereof. It has already been proposed by the Applicant that the plate 12 be mounted in a positionally adjustable manner. This chip removing plate 12 has an arcuate concave side 12a along the outer peripheral surface of the feed roller 2,
The feed roller 2 is a rough surface having, for example, abrasive grains attached to its outer peripheral surface, and the chip removing plate 12 is made of a material that can be ground by the feed roller 2, for example, an aluminum plate. If the chip removing plate 12 formed on the substantially arcuate concave side 12a is fixed in contact with the outer peripheral surface of the feed roller 2 in advance, the arcuate concave side 12a is ground by the feed roller 2, so the feed roller 2 Can be placed along the outer peripheral surface with almost no gap.

In order to mount the chip removing plate 12 in a positionally adjustable manner, for example, a mounting long hole 12b is provided in a part of the chip removing plate 12, and an appropriate number of mounting screws 13 passed through the mounting long hole 12b.
Is attached by screwing it into a screw hole formed on the upper surface of the arm 11. In this case, if the mounting screw 13 is loosened, the chip removing plate 12 is moved along the mounting long hole 12b.
You can move freely in the direction of. Therefore, if there is a gap between the feed roller 2 and the chip removing plate 12,
The chip removing plate 12 can be moved toward the feed roller 2 and re-ground to eliminate the gap. Further, even when the size or shape of the feed roller 2 is changed, the arcuate concave side 12a of the chip removing plate 12 can be ground by the feed roller 2 and adapted to the outer peripheral surface of the feed roller 2.

Therefore, although the chip removing plate 12 can remove most of the chip skin entangled around the feed roller 2, a part of the chip skin can be rotated while being attached to the inner peripheral surface of the cylindrical knife 1. Therefore, it cannot be completely eliminated yet.

In the present invention, in order to remove the scraps attached to the inner peripheral surface of the cylindrical knife 1, a scraps removing member 21 made of, for example, an arc-shaped plate material made of Teflon resin as shown in FIG. It is attached to the inner peripheral surface of the knife 1 so as to be elastically pressed against it. The debris removing member 21 is made of Teflon resin, which has a friction coefficient as small as possible, does not have heat, and is made of a heat-resistant material, and is ground to the inner peripheral surface of the cylindrical knife 1 mutually. It is desirable that the material is
Further, the shape thereof is, for example, as shown in FIG. 4, a sliding friction portion 21 which is curved so as to be adapted to the inner peripheral surface of the cylindrical knife.
a and a mounting portion 21b, and the mounting hole 21 is provided in the mounting portion 21b.
c is provided, and the mounting screw 2 inserted into the mounting hole 21c
It is fixed to the mount 23 by 2 so that its position can be adjusted, and is biased by a leaf spring or the like in a direction of being pressed against the inner peripheral surface of the cylindrical knife. The mount 23 to which the scrap removal member 21 is attached may be an existing part or may be specially provided.

Therefore, even while the cylindrical knife 1 is rotating, the debris excluding member 21 can be rubbed against the inner peripheral surface of the cylindrical knife 1 to remove and remove the chips attached to the inner peripheral surface, In particular, it is more effective when the brush 6 and the chip removing plate 12 are used together. It should be noted that the scrap removing member 21 does not make a sliding noise with the cylindrical knife 1 by reducing the friction coefficient. Further, the scrap removing member 21 also has an effect of constantly grinding the inner peripheral surface of the cylindrical knife 1 so that the sharpness of the cylindrical knife 1 is always improved.

[Effects of the Invention] As described above, in the debris removing device of the skinning machine according to the present invention, since the debris removing member is pressed against the inner peripheral surface of the cylindrical knife, it accumulates on the inner peripheral surface of the cylindrical knife. The chips can be removed by the scrap removing member to improve work efficiency.

[Brief description of drawings]

FIG. 1 shows an embodiment of a device for removing scraps of a skinning machine according to the present invention. FIG. 1 is a sectional view of a main part of a skinning machine to which the present invention is applied, and FIG. 2 is seen from the direction A in FIG. FIG. 3 is a plan view and FIG. 4 is a perspective view of the chip removing member. Reference numeral 1 is a cylindrical knife, 2 is a feed roller, 5 is leather, 6
Is a brush, 8 is a brush plate mounting screw, 12 is a chip removing plate, 2
Reference numeral 1 is a scrap removing member, 21a is a sliding contact portion, 21b is a mounting portion, 21c is a mounting hole, 22 is a mounting screw, and 23 is a mounting base.

Claims (1)

[Scope of utility model registration request] 1. A feed roller having an arcuate convex portion on the outer peripheral surface is arranged inside the edge of a cylindrical knife rotating at high speed with a slight gap, and the back side of the leather fed by the feed roller is the cylindrical shape. In a skinning machine adapted to be scraped by a knife, a scrap skin removing member made of a material having a small friction coefficient and good heat resistance is elastically pressed against a part of an inner peripheral surface of the cylindrical knife. A device for removing scraps from a peeling machine.