JP2010132397A - Positioning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning device capable of accurately and stably positioning a sheet-shaped work piece for solving a malfunction that, in the positioning of the sheet-shaped work by conventional abutting, a mistake in the positioning of the work piece is caused in such a manner that the work piece is bounced back when abutting, and the work piece does not reach an abutting member due to sliding resistance. <P>SOLUTION: The positioning device positions the sheet-shaped work piece 1 by sliding the work piece on a flat surface by an inertia force and abutting a front end in a traveling direction of the work piece against the abutting member 2 installed in a sliding direction. In the positioning device, a rotating brush 9 is arranged at a work piece side of the abutting member at a height for making a brush end contact with the work piece so that the work piece is pushed against the abutting member by the rotating bush and a frictional force of the work piece, and the work piece is positioned. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a workpiece positioning device used when a sheet-like workpiece such as printed paper or film is conveyed one by one and processed in a post process.

Conventionally, in the post-process for folding and enclosing and sealing sheet-like workpieces such as printed paper and film, the workpieces fed and conveyed one by one from the feeder are positioned immediately before the machining step, and the positional deviations that occur during conveyance are detected. The method of processing after correcting is taken.
FIG. 1 is a diagram for explaining the positioning operation, in which workpieces 1 are conveyed one by one to a positioning device section by a nip roll 3 from a previous process such as a printing machine or a sheet feeder. The workpiece 1 that has been transported to the positioning device section slides on the stainless steel or aluminum table 7 of the positioning device with an inertial force and collides with the abutting member 2 at a transport speed of 1000 to 1500 mm / second. Stop. The stopped work 1 is positioned with a positional accuracy of about ± 1 mm when it is satisfactory by the abutting member 2, and is fed in the direction of the next process by the feed claw 4 while maintaining the position and positioned by the nip roll 3 on the downstream side. It is transported while maintaining accuracy.
However, in this method, there is a problem that a work positioning error occurs such that the work rebounds at the time of abutting, or the work may not reach the abutting member due to sliding resistance. Has been adopted.

FIG. 2 is a view for explaining the rebound preventing means 10, which is installed in the vicinity of the abutting member 2, the thin plate 5 and the brush 6 are inclined at the front end toward the abutting member 2, and the lower end is in contact with the work 1 with an appropriate pressure. It is set like this. The work 1 moves toward the abutting member 2 while sliding, and collides with the abutting member 2 while contacting the thin plate 5 and the brush 6. Although it bounces off due to the reaction at the time of collision, the distance where the resistance rebounds greatly is greatly suppressed because of the direction against the inclination of the thin plate 5 and the brush 6. However, the contact pressure between the thin plate 5 and the brush 6 also increases the frictional resistance between the work 1 and the table 7, so that there is a problem that the work 1 is stopped before reaching the abutting member 2. Subtle adjustments such as the pressure setting of the brush 6, adjustment of the frictional force at the tip, and the relationship between the thickness of the workpiece 1 and the effect of preventing rebound are necessary, and stable operation cannot be obtained reliably.

[Patent Document 1] describes a method of pressing a workpiece against an abutting member without causing rebound as a method for positioning a sheet-like workpiece. Since the workpiece is pressed, the object of the present invention cannot be applied because the workpiece is deflected by the pressing force and cannot be positioned.

JP-A-2005-154018

The present invention has been made in view of such a situation, and an object of the present invention is to provide a positioning device capable of accurately and stably positioning a sheet-like workpiece.

According to a first aspect of the positioning device for a sheet-like workpiece of the present invention, the sheet-like workpiece is slid on a plane by an inertial force, and the front end in the advancing direction of the workpiece is brought into contact with an abutting member arranged in the sliding direction. In the positioning device for positioning the workpiece, a rotating brush is disposed at a height at which the brush tip contacts the workpiece on the workpiece side of the abutting member, and the workpiece is abutted by the frictional force between the rotating brush and the workpiece. It is characterized in that the workpiece is positioned by being pressed against.

According to a second aspect of the positioning device for the sheet-like workpiece of the present invention, the sheet-like workpiece is slid on the plane by the inertial force, and the front end in the advancing direction of the workpiece is brought into contact with the abutting member arranged in the sliding direction. In the positioning device for positioning the workpiece, a rotating roll having a mechanism in which the outer periphery of the roll comes into contact with the workpiece with a predetermined pressure is disposed on the workpiece side of the abutting member, and the workpiece is caused by the frictional force between the rotating roll and the workpiece. The workpiece is positioned by pressing against the abutting member.

According to the positioning device for a sheet-like workpiece of the present invention, since the workpiece is pressed against the abutting member by the frictional force of the rotating brush or roll and the workpiece, the workpiece is not rebounded on the abutting member, and the workpiece and Even if there is sliding resistance between the tables, it is driven by the frictional force with the brush or roll and does not reach the abutting member and does not stop.

The present invention will be described below with reference to the drawings.
FIG. 3 is a view for explaining a first embodiment of the positioning device of the present invention. A rotating brush 9 driven by a motor (not shown) is arranged in the vicinity of the abutting member 2 so as to contact the work 1. After reaching the position where 1 is in contact with the rotating brush 9, the work 1 is fed in the direction of the abutting member 2 by the frictional force between the rotating brush 9 and the work 1, and the front end of the work 1 is pressed against the abutting member 2. Since the work 1 is sent to the abutting member 2 without stopping and is pressed, it does not rebound. Further, since the frictional force between the rotating brush 9 and the work 1 is small and pressed against the abutting member 2, the work 1 is not broken or wrinkled, and the front end is in contact with the abutting member 2, so that the high accuracy is achieved. Positioning is possible.

As an example, the rotary brush 9 has an outer diameter of 50 mm, and the brush material is nylon having a diameter of 200 μm and a length of 15 mm. The brush tip was adjusted to a position where it was pushed 1 mm from the height at which it touches the workpiece 1, and the peripheral speed during rotation was rotated at 1000 mm / second. When the workpiece 1 is fed at a speed of 1000 mm / second from the previous process, the workpiece 1 slides on the table 7 and reaches the rotating brush 9, is pulled by the rotation of the rotating brush 9, is pressed against the abutting member 2, stops, and is positioned. It was conducted.

FIG. 4 is a diagram for explaining a second embodiment of the positioning device of the present invention, which is an example in which a rotating roll 8 is used in place of the rotating brush of the first embodiment. The outer diameter of the rotating roll 8 is 50 mm, and the roll surface is a 10 mm thick sponge. The mounting height was set so that the roll surface was in contact with the table 7, and the linear pressure was set to 20 g / cm by a pressurizing mechanism using a spring 11. Similar results were obtained as a result of evaluation by the same method as described and conditions of the first embodiment by rotating the peripheral speed at the time of rotation at 1000 mm / second.

The figure explaining operation | movement of the positioning device of a prior art The figure explaining the rebound prevention means 10 The figure explaining the 1st form of the positioning device of this invention The figure explaining the 2nd form of the positioning device of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Work 2 Abutting member 3 Nip roll 4 Feeding claw 5 Thin plate 6 Brush 7 Table 8 Rotating roll 9 Rotating brush 10 Rebound prevention means 11 Spring

Claims (2)

In the positioning apparatus for positioning the work by sliding a sheet-like work on a flat surface with an inertial force and abutting a front end in the advancing direction of the work on an abutting member disposed in the sliding direction, the abutting member A positioning apparatus comprising: a rotating brush disposed at a height at which a brush tip comes into contact with a workpiece on the workpiece side; and pressing the workpiece against an abutting member by a frictional force between the rotating brush and the workpiece to position the workpiece. In the positioning apparatus for positioning the work by sliding a sheet-like work on a flat surface with an inertial force and abutting a front end in the advancing direction of the work on an abutting member disposed in the sliding direction, the abutting member A rotating roll having a mechanism in which the outer periphery of the roll comes into contact with the work at a predetermined pressure is disposed on the workpiece side, and the work is positioned by pressing the work against the abutting member with the frictional force of the rotating roll and the work. Positioning device.

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