JP5278240B2 - Rubber separator for strip cord member - Google Patents

Description

  The present invention relates to a rubber separation device for a belt-like cord member, and more specifically, to efficiently separate unvulcanized rubber from a belt-like cord member in which cords such as steel wires are aligned and coated with unvulcanized rubber. The present invention relates to a compact rubber separating apparatus capable of

  As a reinforcing material such as a belt layer of a tire, a belt-shaped cord member in which cords such as steel wires and organic fibers are aligned and coated with unvulcanized rubber is used. This strip-shaped cord member is cut out from a long strip-shaped cord member to a predetermined length and used, but a part of the strip-shaped cord member often remains as an end length member without being used. This unused belt-like cord member has been disposed of as industrial waste in the past, but from the viewpoint of cost and environmental friendliness, it has been desired to separate and reuse the cord and the unvulcanized rubber. .

  Therefore, in Patent Document 1, the belt-like cord member with one end gripped is sandwiched between two vertically facing blades, and these blades are moved toward the other end to unvulcanized rubber. Has proposed a rubber separation device that strips off.

  However, in the above rubber separating device, there is a problem that it is difficult to improve the work efficiency because the distance between the two opposing blades must be finely adjusted according to the type of the belt-like cord member. In addition, there is a problem that the apparatus becomes large because a high-output drive mechanism for horizontally moving the two blades against the adhesive force of the unvulcanized rubber must be provided.

Japanese Patent Application No. 2009-035334

  An object of the present invention is to provide a compact rubber separating apparatus capable of efficiently separating unvulcanized rubber from a belt-like cord member.

A rubber separating device for a belt-like cord member of the present invention that achieves the above object is a rubber separating device that separates the unvulcanized rubber from a belt-like cord member formed by coating unstretched cords on an aligned cord. A pair of left and right supports over which the belt-like cord member is bridged, and a pair of left and right pressing means for pressing the bridged belt-like cord member toward the support and having a rod-shaped scraper attached to the tip. , is disposed between the pair of right and left support a arranged clamping portion so as to sandwich said bridged the band cord member, and winding means for winding the strip-shaped cord member, the right and left A tension means for pulling the stretched belt-like cord member in the longitudinal direction is provided on the outside of one of the pair of supports, and between the support on the side opposite to the side where the tension means is provided and the scraper. Said When the belt-like cord member is pressed and the belt-like cord member is not pushed between the support body and the scraper provided with the tension means, the belt-like cord member is provided in the longitudinal direction. The structure is such that the tension means pulls from the side of the support opposite to the provided side toward the side of the support on which the tension means is provided .

  According to the rubber separating device for the belt-like cord member of the present invention, the unvulcanized rubber is scraped off by moving the belt-like cord member while pressing it toward the support. Therefore, separation work can be performed efficiently. In addition, since a part of the rotational force for winding the belt-like cord member is converted into a pressing force to peel off the unvulcanized rubber, the drive mechanism can be reduced in size, so the rubber separating device can be made compact. can do.

It is a perspective view of the rubber | gum separation apparatus of the strip | belt-shaped cord member which consists of embodiment of this invention. It is a front view of FIG. It is a mimetic diagram explaining separation work of unvulcanized rubber using the rubber separation device of the present invention. It is a perspective view of the rubber | gum separation apparatus of the strip | belt-shaped cord member which consists of another embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a rubber separating device for a belt-like cord member according to an embodiment of the present invention.

  This belt-like cord member rubber separating device (hereinafter simply referred to as “rubber separating device”) includes a pair of left and right supports 2A, 2B that bridge the belt-like cord member 1, and the belt-like cord member 1 as supports 2A, 2B. And a pair of left and right pressing means 3A and 3B that are pressed obliquely from the outside respectively, and a winding means 4 that is disposed at the center of the pair of left and right support bodies 2A and 2B and winds the belt-like cord member 1; And a tension means 5 of the belt-like cord member 1 provided outside the support 2A.

  The pair of left and right support bodies 2A and 2B are composed of two bar members arranged so as to be parallel to each other, and these bar members are supported from below by a support member 6 having a V-shaped cross section. The pair of left and right pressing means 3A, 3B is configured by attaching rod-shaped scrapers 7A, 7B to the pressing cylinders 8A, 8B, and presses the belt-like cord member 1 spanned between the supports 2A, 2B. The rods 9A and 9B of the cylinders 8A and 8B are respectively arranged outside the supports 2A and 2B so as to form an angle θ.

  The winding means 4 is configured by fixing two rod-like bodies 11 rotatably attached to a fulcrum 10 to the tip of a rotating shaft 12 connected to a rotating device (not shown). Further, the pulling means 5 presses the belt-like cord member 1 from the obliquely outer side toward the protrusion 15 provided on the upper surface of the L-shaped plate 14 whose side surface is fixed to the horizontal cylinder 13 and toward the vicinity of the protrusion 15. And a holding plate 16. A taper 16a is formed at the lower end of the holding plate 16, and the upper end is connected to a telescopic device (such as a cylinder) (not shown) and is movable in the longitudinal direction.

  Note that the lengths of the supports 2A and 2B, the scrapers 7A and 7B, and the rod-shaped body 11 described above are longer than the width of the belt-shaped cord member 1 (for example, about 20 to 30 mm).

  The operation of separating the unvulcanized rubber from the belt-like cord member using such a rubber separating device will be described in detail below with reference to FIG.

  First, after the belt-like cord member 1 having an appropriate length (for example, about 10 to 50 cm) is bridged between the pair of left and right supports 2A and 2B along the longitudinal direction of the cord, the side where the tension means 5 is not provided. And the belt-like cord member 1 is pressed against the support 2A by the scraper 7A (FIG. 3A). Then, the belt-like cord member 1 is pressed toward the protrusion 15 by the holding plate 16 and is held between the taper portion 16a at the tip (FIG. 3 (b)), while being held horizontally. The cylinder 13 is driven to move the L-shaped plate 14 together with the holding plate 16 outward by a distance L (FIG. 3C). This distance L is set to a value larger than the distance X between the pair of left and right supports 2A, 2B (see FIG. 2). Thus, at least a portion of the unvulcanized rubber 17 located between the supports 2A and 2B in the belt-like cord member 1 is scraped between the scraper 7A and the support 2A, so that the cord 18 of the portion is exposed. become.

  Next, after the holding plate 16 is pulled up, the pressing cylinder 8B on the side where the tension means 5 is provided is driven, and the belt-like cord member 1 with the cord 18 exposed is pressed against the support 2B with the scraper 7B (FIG. 3 (d)). Then, the two rod-like bodies 11 of the winding means 4 are rotated to sandwich the cord 18, and the rotary shaft 12 is rotated to wind the belt-like cord member 1 with the cord 18 exposed inward (see FIG. 3 (e)). At this time, since the scrapers 7A and 7B press the belt-like cord member 1 from the oblique outer side, a part of the rotational force of the winding means 4 works in the direction of extending the rods 9A and 9B of the pressing cylinders 8A and 8B. The scrapers 7A and 7B are further pressed toward the supports 2A and 2B. Therefore, it is possible to wind only the cord 18 around the rod-shaped body 11 while scraping off the unvulcanized rubber 17 located on the outer side of the supports 2A, 2B in the belt-shaped cord member 1. The unvulcanized rubber 17 that has been scraped off adheres and accumulates on the supports 2A and 2B and falls downward, and is collected by appropriate means such as suction.

  After winding up all the cords 18, the rotary shaft 12 is stopped, the rod-shaped body 11 is opened, and the cords 18 are collected (FIG. 3 (f)). Then, in preparation for the next separation operation, the scrapers 7A and 7B, the holding plate 16 and the L-shaped plate 14 are returned to the initial positions.

  As described above, the belt-like cord member 1 is pressed and the unvulcanized rubber 17 is scraped off, so that adjustment according to the specifications of the belt-like cord member 1 is not required, so that the separation work can be performed efficiently. Can do. Moreover, since the unvulcanized rubber 17 is peeled off by using a part of the rotational force for winding the cord 18, the pressing cylinders 8A and 8B can be made small, so that the rubber separating device can be made compact. can do.

  The cross-section of the rod-shaped body 11 in the winding means 4 is preferably a semicircular shape in which the clamping side surface facing the belt-like cord member 1 is a curved surface. By doing so, it is possible to bend and wind the cord 18 at the corner between the curved surface and the flat surface while securely holding the cord 18 with the curved surface. The handling of the cord 18 can be facilitated. This is particularly advantageous when the cord 18 is made of steel wire because the steel wire kinks at the corners.

  In addition, the direction in which the pressing means 3A, 3B presses the belt-like cord member 1 spanned between the pair of left and right support bodies 2A, 2B makes an angle with respect to the belt-like cord member 1, that is, the bridge members 2A, 2B. By setting the angle θ formed by the rods 9A and 9B of the pressing cylinders 8A and 8B to the passed belt-shaped cord member 1 to 10 to 40 °, preferably 30 °, a part of the rotational force of the winding means 4 is obtained. Since it can be efficiently used as the pressing force of the scrapers 7A and 7B, the unvulcanized rubber 17 can be scraped off and the cord 18 can be wound up smoothly.

  FIG. 4 shows a rubber separation device according to another embodiment of the present invention.

  This rubber separating device constitutes the winding means 4 by fixing a round bar 20 having a cut 19 having a width larger than the thickness of the belt-like cord member 1 at the tip thereof to the tip of the rotary shaft 12. . By doing in this way, since the mechanism which clamps the code | cord | chord 18 like the rod-shaped body 11 becomes unnecessary, the structure of a rubber separation apparatus can be made simpler than said embodiment.

  The rubber separating device of the present invention can be suitably used for separating the unvulcanized rubber 17 from the belt-like cord member 1 as a reinforcing material such as a belt layer of a tire, particularly from the belt-like cord member 1 using a steel cord.

DESCRIPTION OF SYMBOLS 1 Strip | belt-shaped cord member 2A, 2B Support body 3A, 3B Press means 4 Winding means 5 Pull means 6 Support member 7A, 7B Scraper 8A, 8B Press cylinder 9A, 9B (Pressing cylinder) Rod 10 Support point 11 Rod-shaped body 12 Rotating shaft 13 Horizontal cylinder 14 L-shaped plate 15 Protrusion 16 Holding plate 16a Tapered portion 17 Unvulcanized rubber 18 Cord 19 Notch 20 Round bar

Claims (8)

A rubber separating device for separating the unvulcanized rubber from a belt-like cord member formed by coating uncured rubber on the aligned cords,
A pair of left and right supports over which the belt-like cord member is bridged, a pair of left and right pressing means having a rod-shaped scraper attached to the tip, pressing the bridged belt-like cord member against the support; A winding means disposed between a pair of left and right supports and sandwiching the spanned belt- like cord member, and winding means for winding the belt-like cord member ; A tension means for pulling the spanned cord member stretched in the longitudinal direction on either outer side of the support, and the belt-like shape between the support on the side opposite to the side where the tension means is provided and the scraper; While pressing the cord member, when the belt-like cord member is not pressed between the support body and the scraper provided with the tension means, the belt-like cord member in the longitudinal direction, Serial tension rubber separator of belt cord member was constituted pulling by the pulling means toward a side of the support of the tensile means from the side of the support opposite side provided are a means is provided side.   The rubber separating device for a belt-like cord member according to claim 1, wherein the pair of left and right pressing means push the belt-like cord member toward the pair of left and right supports from an obliquely outward direction. 3. The belt-like cord member according to claim 1, wherein the winding means uses two rod-like bodies that can rotate around a fulcrum as the clamping portion, and these rod-like bodies are fixed to the tip of the rotating shaft. Rubber separator.   The rubber | gum separation apparatus of the strip | belt-shaped cord member of Claim 3 which made the cross section of the said rod-shaped body the semicircle shape by which a clamping side becomes a curved surface. 2. The winding means is formed by fixing a round bar material at a tip end of a rotating shaft, with the round bar material formed with a notch having a width larger than the thickness of the belt-like cord member at the tip part as the clamping part. Or the rubber | gum separation apparatus of the strip | belt-shaped cord member of 2. Direction in which the pressing means presses the strip code member passed hung on the pair of right and left support is any of claims 2 to 5 which is in an angle of 10 to 40 ° with respect to the belt-shaped cord member The rubber | gum separation apparatus of the strip | belt-shaped cord member as described in 2. The rubber separation device for a belt-like cord member according to any one of claims 1 to 6 , wherein the cord is a steel wire. The rubber separator for a belt-like cord member according to any one of claims 1 to 7 , wherein the belt-like cord member is a tire reinforcing material.

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