KR-102960749-B1 - CHUTE AND VIBRATION CONVEYANCE DEVICE

KR102960749B1KR 102960749 B1KR102960749 B1KR 102960749B1KR-102960749-B1

Abstract

A chute is provided that enables quantitative supply of a workpiece under conditions where changes in the workpiece's orientation are prevented and suppressed during transfer to the workpiece transfer surface of the next process equipment, by reducing friction between the workpiece and the transfer surface and preventing and suppressing amplitude differences at the part-by-part level of the transfer surface, while also reducing the drop between the transfer surface and the workpiece transfer surface of the next process equipment. The device is configured to have a work transport path (2) having a chute transport surface (21) on an upward surface and an open downward space, a transport unit (3) positioned adjacent to the work transport path (2) and transmitting vibrations generated by elastic deformation to the chute transport surface (21), and a driving unit (4) that elastically deforms the transport unit (3), and in a vibration mode in which the transport unit (3) is elastically deformed by the driving unit (4), the entire chute transport surface (21) is positioned at the antinode portion of the vibration mode.

Inventors

마에다, 미네타카
기무라, 데츠유키
오니시, 다카노부

Assignees

신포니아 테크놀로지 가부시끼가이샤

Dates

Publication Date: 20260507
Application Date: 20210126
Priority Date: 20200611

Claims (5)

A chute capable of moving a workpiece, which is the object to be returned, along a return surface toward a downstream end in the return direction and returning it to a workpiece moving surface of a predetermined next process equipment. A conveyor path having the above conveyor surface on the upward surface and also having a downward space open, and A conveying unit positioned adjacent to the above conveying path and also transmitting vibrations generated by elastic deformation to the above conveying surface, and The above-mentioned conveyor part is provided with a driving part that elastically deforms the conveyor part, and A suit characterized by being configured such that, in a vibration mode in which the conveyor is elastically deformed by the above-described driving unit, the entire conveyor surface along the conveyor direction is positioned at a location corresponding to or near the antinode of the vibration mode where the amplitude in the direction perpendicular to the conveyor direction on the conveyor surface is maximized.
A chute capable of moving a workpiece, which is the object to be returned, along a return surface toward a downstream end in the return direction and returning it to a workpiece moving surface of a predetermined next process equipment. A conveyor path having the above conveyor surface on the upward surface and also having a downward space open, and A conveying unit positioned adjacent to the above conveying path and also transmitting vibrations generated by elastic deformation to the above conveying surface, and The above-mentioned conveyor part is provided with a driving part that elastically deforms the conveyor part, and In a vibration mode in which the conveyor is elastically deformed by the above driving unit, the entire conveyor surface is configured to be at a position corresponding to or near the antinode of the vibration mode, and The above-mentioned return part is an elastically deformable plate body arranged in an upright position, and The above vibration mode is a vibration generated by the expansion and contraction movement of the plate in the height direction by driving the driving unit fixed to the center of the plate body in the height direction. The above-mentioned return path is a chute provided in a position that protrudes in the thickness direction of the plate body at the end of the plate body.
A chute capable of moving a workpiece, which is the object to be returned, along a return surface toward a downstream end in the return direction and returning it to a workpiece moving surface of a predetermined next process equipment. A conveyor path having the above conveyor surface on the upward surface and also having a downward space open, and A conveying unit positioned adjacent to the above conveying path and also transmitting vibrations generated by elastic deformation to the above conveying surface, and The above-mentioned conveyor part is provided with a driving part that elastically deforms the conveyor part, and In a vibration mode in which the conveyor is elastically deformed by the above driving unit, the entire conveyor surface is configured to be at a position corresponding to or near the antinode of the vibration mode, and The above-mentioned conveying part is an elastically deformable plate body arranged in a recumbent position, and The above vibration mode is a bending vibration in a plane perpendicular to the conveying direction of the plate body, which is generated by driving the driving unit fixed to the center of the width direction of the plate body. The above return path is a chute provided at one side end of the plate body or at a location adjacent to the vicinity of said side end.
A chute according to any one of claims 1 to 3, wherein the return surface is set as an inclined surface that gradually becomes a downward gradient toward the downstream end of the return direction.
A vibrating conveying device capable of moving a workpiece, which is the object to be conveyed, toward the end of the main conveying path by vibration and conveying it downstream in the conveying direction. A vibrating conveyor device characterized by having a chute described in any one of claims 1 to 3 placed at a position adjacent to the end of the main conveyor path.

Description

Chute and Vibration Conveyance Device The present invention relates to a chute applicable to a device (part feeder) that conveys a workpiece by vibration, and a vibration conveying device. A vibration conveying device (part feeder) for transporting and aligning small workpieces, such as electronic chip components, by vibration and supplying them to the next process is known, comprising a linear feeder that transports the workpiece along a linearly extended conveying path and a ball feeder connected to the upstream side of the linear feeder. In order to accommodate the miniaturization of workpieces, such part feeders utilize traveling waves by elastic vibration to transport the workpiece (see, for example, Patent Document 1). In addition, Patent Document 2 below discloses a workpiece appearance inspection device in which a vibration-free unit is positioned between a linear feeder and a rotatable circular conveyor table to transport the workpiece in a vibration-free state. The said patent document discloses a configuration in which a vibration-free unit, having an incline equal to that of the linear feeder and not vibrating, is connected to the downstream end of a linear feeder that descends with a slight incline toward the conveyor table. The said patent document exemplifies the reason for adopting this configuration as preventing the linear feeder from coming into contact with the conveyor table, as there is a risk that the linear feeder will come into contact with the conveyor table when the linear feeder is brought close to a position directly above the conveyor table when transferring and loading the workpiece from the linear feeder to the conveyor table, because the linear feeder vibrates. In a configuration where a non-vibrating vibration-free section is installed between the downstream end of such a linear feeder and the conveyor table, the workpiece on the vibration-free section is pushed forward by a subsequent workpiece and descends slightly toward the conveyor table, and when it reaches the downstream end of the vibration-free section, it is pushed by a subsequent workpiece located immediately thereafter and is moved and loaded onto the conveyor table. In Patent Document 1 below, a configuration is disclosed in which a chute (discharge feeder) equipped with a workpiece conveying path is positioned at a location continuous to the downstream end of a linear feeder, and a workpiece is slid onto the conveying surface of the workpiece conveying path, which is set in a shape that is inclined so that the downstream side of the workpiece conveying direction is lower than the upstream side of the workpiece conveying direction, and supplied to the next process. However, if the configuration allows the workpiece to slide on a vibration-free conveying surface, the workpiece may become stuck on the workpiece conveying path due to friction with the conveying surface, or the workpiece, unable to receive pressure from subsequent workpieces, may stop at the downstream end of the workpiece conveying path, causing workpiece jamming or workpiece scattering. Accordingly, the applicant has devised a configuration that can improve workpiece transport processing efficiency compared to a configuration in which a workpiece slides on the transport surface of a chute without vibration, wherein a piezoelectric element is attached to the back surface of the chute and, by driving the piezoelectric element, a wave (antinode/node) is generated throughout the entire chute including the transport surface, and the chute is elastically deformed to excite it in a bending vibration mode (see, for example, Patent Document 1). With such a configuration, compared to a configuration in which a workpiece slides on the transport surface of a chute without vibration, friction between the transport surface of the chute and the workpiece can be reduced by exciting the chute in a bending vibration mode, and as a result, workpiece transport processing efficiency can be improved. FIG. 1 is an overall view of a vibrating conveying device equipped with a chute according to one embodiment (first embodiment) of the present invention. Fig. 2 is an enlarged view of the main part of Fig. 1. FIG. 3 is an overall external view of the suit according to the same embodiment. FIG. 4 is a drawing showing a suit according to the same embodiment. FIG. 5 is a drawing showing a suit according to the same embodiment. FIG. 6 is a drawing showing the vertical vibration mode in the same embodiment by displacement enlargement through analysis animation. FIG. 7 is an overall view of a vibrating conveyor device equipped with a chute according to another embodiment (second embodiment) of the present invention. Fig. 8 is an enlarged view of the main part of Fig. 7. FIG. 9 is an overall external view of the suit according to the same embodiment. FIG. 10 is a drawing showing a suit relating to the same embodiment. FIG. 11 is a drawing showing the displacement enlarged by anal