JPH0645935U - Transfer device for columnar or tubular articles - Google Patents

Abstract

(57) [Summary] [Purpose] When a columnar or cylindrical article is to be transferred upright in a gutter-shaped transfer path, only the articles that have fallen down are selected and automatically excluded. By doing
Eliminate transport mistakes. A stopper 3 is provided at the end of a transfer path 1 for contacting an outer peripheral surface of an upper end portion of an article P transferred in an upright state. An opening hole 5 is formed below the stopper 3. Since the article P in the standing state is in contact with the stopper 3 while being supported by the bottom plate 1a of the transfer path 1, the standing state is maintained, while the article P in the collapsed state has the opening hole 5 It passes and is discharged outside the transfer path 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention transfers a columnar or cylindrical article in an upright position with its axis extending vertically, such as a transfer device that transfers a cylindrical resin pellet for electronic parts toward an injection molding machine. This is related to the improvement of the transfer device (parts feeder).

[0002]

[Prior art]

 When manufacturing a resin-sealed type electronic component made by sealing a semiconductor chip with resin, cylindrical resin pellets are generally used, and a large number of resin pellets are put into a hopper, After aligning these resin pellets in a standing posture in which the axis extends vertically, the resin pellets are sent to an upward-opening gutter-shaped transfer path, and vibration is applied in a certain direction to the transfer path by a vibrator, so that the resin pellets form a line The resin pellets arranged in a line are slid toward the molding machine, and the resin pellets are taken out one by one from the end of the transfer path with a vacuum suction collet or the like and loaded into the molding machine.

[0003]

[Problems to be solved by the device]

 However, the resin pellets may fall into the transfer path or may fall due to vibration during the transfer.This transfer misuse makes it possible to take out the resin pellets with a vacuum adsorption collet. However, there was a problem that the entire molding process was stopped.

The present invention has been made in view of such a problem, and when a columnar or tubular article is transferred in an upright state, only the collapsed article is selected at the end of the transfer path. The purpose is to eliminate transfer mistakes by dynamically eliminating them.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, the present invention provides an outer peripheral surface of an upper end portion of an article transferred in an upright state at the end of an upward opening gutter-shaped transfer path configured to slide and move a columnar or cylindrical article in the upright state. A stopper is provided in contact with the stopper, and an opening hole is formed in the lower portion of the stopper so that the fallen article can pass and the standing article cannot pass.

[0006]

[Operation and effect of the device]

 With this configuration, the articles that have been transferred to the end of the transfer path in the upright state stand up without falling because the outer peripheral surface of the upper end contacts the stopper while being supported by the bottom surface of the transfer path. The posture will be maintained, and as a result, the transition to the next process can be performed without any hindrance.

On the other hand, when the article is transported in the transfer path in a tilted posture, the article does not come into contact with the stopper and goes along the traveling direction from the opening hole to the outside of the transfer path. Automatically eliminated. Therefore, according to the present invention, when a columnar or tubular article is transferred in an upright state, the article transferred in the upright state is not collapsed, and only the article transferred in the collapsed state is selected and transferred. Since it can be automatically removed to the outside of the road, it has the effect of reliably preventing the entire process from being stopped due to a transfer miss.

When the article is transferred in a tilted state, the article falls in a vertical posture so that its axis extends in the transfer direction, and in the horizontal direction in which the axis extends in a direction orthogonal to the transfer direction. However, the present invention can be applied to any of the postures.

[0009]

【Example】

 Next, an embodiment when applied to the transfer of the above-mentioned resin pellet for molding of electronic parts will be described based on the drawings. 1 to 5 show a first embodiment applied to a transfer device for resin pellets P whose outer diameter D and height dimension H are substantially equal.

This transfer device is provided with a gutter-shaped transfer path 1 whose starting end is connected to a hopper, and at the end of the transfer path 1, a gutter-shaped outlet path 2 extending in a direction perpendicular to the transfer path 1 in plan view. The resin pellets P stopped in a standing state at the end of the transfer passage 1 are taken out one by one into the outlet passage 2 and loaded into the molding machine by an appropriate means (the outlet passage 2 Needless to say, the resin pellet P stopped in the upright state at the end of the transfer path 1 may be picked up by a vacuum suction collet or the like and taken out directly without providing the above).

At the end of the transfer path 1, a stopper 3 that is in contact with the outer peripheral surface of the upper end of the resin pellet P in an upright state is screwed to the outer surface of the transfer path 2 with a suitable means. The resin pellets transferred in a laterally tilted posture in which the axis extends in the width direction of the transfer path 1 by partially notching the tip of the bottom plate 1a of the transfer path 1 at a position below the stopper 3 An opening hole 5 for removing P is formed.

At this time, when the bottom plate 1a in the transfer path 1 is notched, the upper end of the resin pellet P is supported with approximately half of the lower surface of the resin pellet P in the upright state being supported by the bottom plate 1a. By setting the portion to contact the stopper 3, the standing state of the resin pellet P is maintained, while the distance L from the end face of the bottom plate 1a to the stopper 3 is set to the resin pellet P. By setting the size to be slightly larger than the diameter dimension D of the resin pellet P, the resin pellets P 2 that have been transferred in a horizontally tilted state are configured to roll down from the opening 5 toward the front in the transfer direction.

The bottom surface 1 b of the terminal end of the transfer path 1 is formed as an inclined surface that is inclined obliquely upward toward the outlet passage 2. In the above configuration, when the resin pellets P that are transferred in the transfer path 1 are mixed with those that have fallen sideways, only the resin pellets P that have fallen sideways are automatically transferred from the opening 5 to the outside of the transfer path 1. Since the resin pellets P in the standing state are taken out in the same posture, it is possible to prevent the entire process from being stopped due to a transfer error.

As in the embodiment, when the bottom surface 1b of the terminal end of the transfer path 1 is formed as an inclined surface that is inclined upward toward the outlet path 2, the resin pellets P transferred in the standing state are transferred to the stopper 3. It is possible to prevent the resin pellet P stopped by the stopper 3 from jumping out to the outlet passage 2 due to the impact of the collision or the vibration of the resin pellet P stopped by the stopper 3.

When the height dimension H of the resin pellet P is larger than the outer diameter dimension D, the resin pellet P should fall in the transfer path 1 in a vertical posture so that its axis extends in the transfer direction. become. In this case, as shown in FIGS. 6 to 7, an opening hole 5 through which the resin pellet P in a vertically tilted posture is removed and an upper end portion of the resin pellet P in an upright state are formed in the terminal surface of the transfer path 1. It suffices to provide a stopper 3 that comes into contact with.

As shown by the alternate long and short dash line in FIG. 7, a bottom surface b of the terminal end of the transfer path 1 is provided with a recess 1c having an arcuate cross section in which the resin pellet P in a vertically tilted state fits. The stopper 3 may be formed so as to gradually become deeper toward the opening hole 5. By doing so, the stopper 3 can be arranged downward without impairing the certainty of removing the fallen resin pellet P. Therefore, it is possible to reliably prevent the standing resin pellets P from falling over due to the bounce of the stoppers 3 coming into contact with the stoppers 3. Further, as shown by the chain double-dashed line in FIG. 7, the bottom surface 1b of the transfer path 1 may be inclined.

Although both of the above-described embodiments have been applied to the transfer of resin pellets, the present invention can be widely applied to the transfer of various cylindrical, prismatic, or cylindrical articles in an upright state. Needless to say.

[Brief description of drawings]

FIG. 1A is a perspective view of a first embodiment, and FIG. 1B is a BB view of FIG.

2 is a plan view of the device of FIG. 1. FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a perspective view showing a second embodiment.

7 is a sectional view taken along line VII-VII in FIG.

[Explanation of symbols]

 P Resin pellet as an example of a cylindrical article 1 Transfer path 1a Bottom plate of transfer path 3 Stopper 5 Opening hole

Claims (1)

[Scope of utility model registration request] 1. A stopper that abuts an outer peripheral surface of an upper end portion of an article transferred in an upright state at the end of an upward opening gutter-shaped transfer path configured to slide a columnar or tubular article in an upright state. A columnar or tubular article transfer device, characterized in that an opening hole is formed in a portion below the stopper so that an article in a fallen state can pass and an article in a standing state cannot pass.