JP2006240849A - Conveyance guide mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyance guide mechanism capable of reducing a load applied to a brittle thin plate-like film and to easily determine the position of a conveyance line. <P>SOLUTION: The conveyance guide mechanism is for conveying a film shaped band-like body and determining the position in the horizontal direction with respect to the conveyance direction, and is equipped with a conveyance roll 2 with a positioning ring 1, having a concentric flat part 7 for determining the conveyance standard face in the horizontal direction, a concentric groove like concave part 5 positioned on the inner peripheral side of the flat part 7, and a concentric tapered part 4 positioned on the outer peripheral side of the flat part 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a conveyance guide mechanism that conveys a film-shaped belt-like body, and more particularly to a conveyance guide mechanism suitable for conveyance and positioning of a fragile thin plate film.

  As a method for positioning the conveyance line of the fragile thin plate film, as a reference surface as disclosed in EPC (Edge Position Controller) for electrically controlling the film conveyance line, or Patent Documents 1 and 2 For example, there is a method of pressing the edge of the film.

  In Patent Document 1, a flanged roller, which is placed between each of two reference flanged rollers arranged at a distance from each other and adjustable in distance from one tape edge, is pressed against the tape edge. A method of suppressing the lateral movement of the tape by bringing the other tape edge into contact with the reference surface by applying is disclosed.

  Further, in Patent Document 2, a work is sandwiched between a pair of movable guide plates near both ends of a roller body, and is urged with a constant force toward the center of the roller body to stabilize the work conveyance line. A method is disclosed.

Japanese National Patent Publication No. 9-500753 JP 11-292364 A

  However, in general, the method using EPC has a high manufacturing cost. On the other hand, both of the techniques disclosed in Patent Documents 1 and 2 perform positioning by pressing the film edge against the reference surface. The edges may deform and cause damage.

  Therefore, the subject of this invention is providing the conveyance guide mechanism for reducing the load concerning a weak thin plate-shaped film, and performing positioning of a conveyance line simply.

  The present invention has been made as a result of studying a method for positioning a transfer line without using an expensive device and without applying an extreme load to the end face of the workpiece in order to solve the above-described problems.

  That is, the transport guide mechanism of the present invention is a transport guide mechanism including a guide roll for transporting a film-shaped strip, wherein the guide roll includes a transport roll and a transport reference plane that is transverse to the transport direction of the strip. And a groove-shaped concave portion, a flat portion, and a tapered portion are formed concentrically on the surface of the positioning ring on the side in contact with the belt-like body in order from the surface side of the transport roll. It is characterized by.

  As described above, the roll having the two positioning rings having the grooves and the taper on both sides as the conveyance reference surface reduces the load on the conveyance film and suppresses the movement in the direction perpendicular to the conveyance line.

  According to the present invention, when the film is transported, a taper is provided on the outer periphery of the positioning ring serving as a transport reference surface, and a groove is provided in the contact edge between the positioning ring and the roll, thereby reducing the contact area between the film end surface and the positioning ring. The load on the film can be reduced.

  Next, the best mode for carrying out the present invention will be described.

  FIG. 1 shows a conveyance guide mechanism according to the present invention, FIG. 1 (a) is a perspective view thereof, FIG. 1 (b) is a partial sectional view of a guide roll, and an upper side of a center line is shown in a sectional view. FIG. 1C is a partial detail view of the positioning ring.

  In FIG. 1, 1 is a guide positioning ring, 2 is a transport roll, 3 is a ball bearing, 4 is a tapered portion, 5 is a groove-shaped recess, 6 is a film, and an arrow is a moving direction of the film. After passing through the first roll, the film is transported through the second roll.

  Here, when the conveyance line of the film 6 is shifted laterally and passes the portion of the conveyance roll 2, which side edge of the film 6 and the flat portion 7 that sets the conveyance reference plane of the positioning ring 1 are determined. How to make contact. First, attention is paid to a linear portion orthogonal to the conveying direction on the film 6. When the end in the longitudinal direction of the linear portion approaches the positioning ring 1, it does not contact the positioning ring 1 at first because of the taper of the taper portion 4, but when it approaches further, it is provided concentrically on the positioning ring 1 Then, the film is brought into contact with the flat portion 7 and at this time, the lateral direction of the film conveyance line is determined. Further, when the linear portion moves and comes into contact with the surface of the transport roll 2, the end portion does not come into contact with the positioning ring 1 because of the groove-shaped recess 5 provided concentrically on the positioning ring 1. . When the linear portion further moves, the end portion of the linear portion comes into contact with the flat portion 7 provided concentrically on the positioning ring 1 and the conveyance line is positioned. Thus, in the conveyance guide mechanism of the present invention, there is no situation in which the linear portion perpendicular to the film conveyance direction is pressed from the lower surface by the positioning ring while being pressed from the lower surface by the positioning ring, and an excessive force is applied to the film. Prevents being added.

  In the present invention, the transport roll 2 and the positioning ring 1 are appropriately selected to have a surface state with the lowest friction coefficient with respect to the film 6.

  Further, regarding the taper angle and the groove, the taper angle and the groove are appropriately determined according to the characteristics (thickness, fragility, etc.) of the film.

  Next, a specific embodiment will be described with reference to FIG.

  The structure of the transport guide mechanism of the present embodiment is the same as the structure of FIG. 1 described in the embodiment of the present invention. As shown in FIG. 1 (a), the film 6 passes through the first roll and then is transported through the second roll.

  The roll (conveying roll 2) and the guide ring (positioning ring 1) are subjected to white alumite treatment. The friction coefficient between the film, the roll and the guide ring was 0.1. Here, an aluminum foil having a thickness of 140 μm and a width of 30 mm was used as the film 6. The tension was 2 kgf. The ideal gap between the reference surface of the guide ring and the film was 0.1 mm.

  The amount of movement of the film thus transported in a direction perpendicular to the traveling direction was measured. (1) First, in the case of no positioning ring (guide ring): ± 0.16 mm, (2) In the case of the present embodiment with positioning ring: ± 0.05 mm. Moreover, neither deformation nor scratches were found on the film edge in terms of appearance.

  Further, the film conveyance line was forcibly offset from the reference plane to 1 mm and 2 mm, the film was mounted on the apparatus, and the amount of movement in the direction perpendicular to the traveling direction was measured as described above. As a result, (3) when the offset amount was 1 mm: ± 0.05 mm, (4) when the offset amount was 2 mm: ± 0.05 mm. Moreover, neither deformation nor scratches were found on the film edge in terms of appearance.

  For comparison, the film was transported using an apparatus of the method disclosed in Patent Document 2, and the amount of movement in a direction perpendicular to the traveling direction was measured as described above. As a result, (5) In the case of the prior art: ± 0.3 mm, and a curled deformation having a width of 0.2 mm was observed at both ends of the film.

  As described above, according to the present invention, it becomes possible to carry and position the fragile thin plate film with a simpler device and method than in the conventional method, which contributes to simplification of the device and cost reduction. However, there are very large ones.

FIG. 1A is a perspective view of the conveyance guide mechanism according to the present invention, FIG. 1B is a partial sectional view of a guide roll, and FIG. 1C is a partial detailed view of a positioning ring.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Positioning ring 2 Conveyance roll 3 Ball bearing 4 Tapered part 5 Groove-shaped recessed part 6 Film
7 Flat part

Claims (1)

  In the transport guide mechanism including a guide roll for transporting the film-shaped strip, the guide roll includes a transport roll and a positioning ring that defines a transport reference plane in a lateral direction with respect to the transport direction of the strip. A conveyance guide mechanism, characterized in that a groove-shaped concave portion, a flat portion, and a taper portion are formed concentrically on a surface of the positioning ring in contact with the belt-like body in order from the surface side of the conveyance roll.

Images