JP2007230711A - Carrying chain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrying chain capable of eliminating the labor of the replacing work of links. <P>SOLUTION: This carrying chain 1 is constituted by connecting a large number of links 2 and 2 to one another by a pivoting means such as a pin. The links 2 comprise a rectangular bar-shaped base body 3, pivoting holes 4 as the pivoting means formed at longitudinal both ends of the base body 3 and pivoting the adjacent base bodies 3 each other, and a metallic plate 5 formed in a shape of covering one side surface of the base bodies 3, detachably fixed to the one side surface by screw-fastening and contacting with a carrying object. A plurality of V-shaped grooves 10 are curved on the whole in longitudinal two directions of the 45-degree direction and the 135-degree direction on the contact surface side with the carrying object in the plate 5 so as to intersect with the carrying direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transport chain that transports an object to be transported to a predetermined position.

  2. Description of the Related Art Conventionally, as a transport chain that feeds a workpiece as a transported object to a predetermined position in a processing apparatus, for example, the one in Patent Document 1 is known. This transport chain is formed by pivoting a large number of links, and a hardened layer is formed of a hard substance on the contact surface of the upper surface of the link. According to this transport chain, it is possible to make the contact surface less likely to wear and to suppress dimensional changes due to thermal expansion of the contact surface, compared to the case where anti-slip rubber or the like is used for the contact surface with the object to be transported And high machining accuracy can be maintained for a long time.

JP 2004-168446 A

  However, even though the hardened layer is formed, a link in which the hardened layer is worn may occur due to repeated contact with the conveyed object. In this case, when exchanging the worn link, there is a problem in that it takes time and effort because the entire transport chain must be removed from the processing apparatus.

  In view of the above problems, an object of the present invention is to provide a transport chain that can save the labor of replacing the link.

  In order to solve the above-mentioned problem, the transport chain according to the invention of claim 1 is formed by connecting a large number of links by pivot means, and is driven by being wound around the drive means to transport the object to be transported to a predetermined position. The link includes a base body having pivot means at both ends, and a plate that is detachably provided on one side surface of the base body and that comes into contact with an object to be transported. It is comprised so that a contact surface with a conveyed product may be formed in unevenness.

  The transport chain according to the invention of claim 2 is configured to be provided with a plurality of grooves intersecting the transport direction on the contact surface of the plate.

  The conveyance chain according to the invention of claim 3 is configured such that a minute uneven thermal spray coating is provided on the contact surface of the plate.

  The conveying chain according to the invention of claim 4 is configured to be provided with a rubber coating on the contact surface of the plate.

  According to the first aspect of the present invention, when the contact surface with the object to be transported is worn, it is only necessary to replace the plate without removing the entire transport chain from the driving means. Therefore, the labor of exchange work can be saved.

  According to the second, third, and fourth aspects of the present invention, the object to be conveyed can be made difficult to slip.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings.
1A and 1B show an embodiment of a transport chain according to the present invention, in which FIG. 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a left side view. The transport chain 1 is configured by connecting a large number of links 2 and 2 with a pivoting means such as a pin. For example, the conveyance chain 1 is driven by being wound around a sprocket (not shown) as a driving means in a processing apparatus that cuts a workpiece such as a plate material, and sets the workpiece as a workpiece to a setup position. It is used as a transport means for transporting from a cutting position to a cutting position.

  The link 2 includes a rectangular bar-shaped base body 3, a pivot attachment hole 4 that is provided at both longitudinal ends of the base body 3 and pivotally attaches adjacent base bodies 3 to each other, and one side surface of the base body 3. And a metal plate 5 that is detachably fixed to one side surface by screws and comes into contact with an object to be conveyed. On the contact surface side of the plate 5 with the object to be conveyed, a plurality of V-shaped grooves 10 are entirely formed along two directions of 45 degrees and 135 degrees with respect to the longitudinal direction so as to intersect the conveying direction. It is carved in.

  According to the transport chain 1, the plate 5 is detachably provided on one side of the base body 3 that comes into contact with the object to be transported. Therefore, even if the contact surface with the object to be transported is worn, Only the worn plate 5 can be replaced without removing the entire chain 1 from the drive means, and the labor of the replacement work can be saved. In addition, by providing a plurality of V-shaped grooves 10 intersecting the transport direction on the contact surface of the plate 5 with the object to be transported, the contact surface of the plate 5 is formed in an uneven shape, so that the frictional resistance is increased. It is possible to make the conveyed object difficult to slip.

  FIG. 2 shows another embodiment of the plate, where (a) is a plan view and (b) is a front view. On the contact surface side of the plate 6 with the object to be transported, there is provided a micro uneven sprayed coating 11 formed by spraying a powder material such as ceramic or tungsten carbide using a known spraying method. Also with this plate 6, the sprayed coating 11 is roughened on the contact surface with the object to be conveyed to increase the frictional resistance, and at the same time, the wear resistance can be improved, and the object to be conveyed can be made more difficult to slip.

  FIG. 3 shows another embodiment of the plate, in which (a) is a plan view and (b) is a front view. On the contact surface side of the plate 7 with the object to be conveyed, a rubber coating 12 is formed with a thickness that does not affect the processing accuracy even if the rubber coating 12 is thermally expanded by frictional heat or the like. According to this plate 7, the dimensional change by thermal expansion can be prevented and high processing accuracy can be maintained. Further, the frictional resistance at the contact surface with the object to be conveyed can be increased, and the object to be conveyed can be made more difficult to slip.

The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing the shape and configuration of each part without departing from the spirit of the present invention, as exemplified below. .
(1) It is desirable to form the plate with a thickness of 3 to 6 mm.
(2) The plate is not limited to screwing, but may be detachably provided on the base body by other fixing means such as adhesion.
(3) The groove provided on the contact surface of the plate is not limited to the V shape, and may be formed in other cross-sectional shapes such as a U shape.
(4) You may provide both a groove | channel and a sprayed coating in the contact surface of a plate. Moreover, you may provide both a groove | channel and a rubber film. In these cases, the conveyed object can be made more difficult to slip.
(5) The engraving direction of the groove is not limited to 45 degrees and 135 degrees, but may be other two directions. Further, the groove is not limited to two directions, and may be provided along, for example, one direction orthogonal to the transport direction, or other plural directions such as three directions.

1 shows an embodiment of a transport chain according to the present invention, wherein (a) is a plan view, (b) is a front view, and (c) is a left side view. The other embodiment of a plate is shown, (a) is a top view, (b) is a front view. The other embodiment of a plate is shown, (a) is a top view, (b) is a front view.

Explanation of symbols

1 .... Conveying chain, 2..Link, 3..Base body, 4..Pivoting hole, 5,6,7..Plate, 10 ... V-shaped groove, 11 ... Sprayed coating, 12 ... Rubber coating.

Claims (4)

A transport chain formed by connecting a large number of links by a pivoting means, wound around a driving means and driven, and transports an object to be transported to a predetermined position,
The link is
A base body provided with pivot means at both ends;
A plate that is detachably provided on one side surface of the base body, and that contacts the conveyed object
Having
The contact surface of the plate with at least the object to be conveyed is formed in an uneven shape,
A conveyor chain characterized by that. On the contact surface of the plate, a plurality of grooves intersecting the transport direction are provided.
The conveyance chain according to claim 1. The contact surface of the plate is provided with a micro uneven spray coating.
The conveyance chain according to claim 1 or 2. A rubber coating is provided on the contact surface of the plate.
The conveyance chain according to claim 1 or 2.

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