JPH04173618A - Parts posture control device of parts supply tube - Google Patents

Abstract

PURPOSE:To prevent parts from being clogged in the parts posture control device of a feed tube for bolts and the like, by providing a supporting piece which shuts off parts passing to the feed tube discharge port so as to advance or reverse freely, and installing a magnet at a position facing the feed tube supporting piece. CONSTITUTION:A stopper member 11 is formed on the top of a parts feed tube 8, and the top part 10 side of a feed rod 4 of the tube edge part 9 is formed at the parts discharge port as an opening part 12. Besides, a supporting piece 13 is provided in the opening part 12 so as to advance or reverse, and the head part 2 of a bolt 1 which goes down in the feed tube 8 is engaged between the inner surface of the edge part 9 and the supporting piece 13 for temporary positioning. Moreover, a magnet 14 is installed at the feed tube 8 at the position facing the supporting piece 13, and the bolt 1 which travels to the edge part 9 is atracted along two-dot chain line. With this constitution, the bolt 1 goes down while the tip is being contact with the inner surface of the feed tube 8, it is thus possible to be engaged in a correct posture.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a component attitude control device for a component supply pipe, and is used in the field of temporarily locking a shaft-shaped component such as a bolt in a component supply pipe. used.

(0) Prior art As far as I know, there is no known technology that corresponds to this invention, but the invention related to my research and development is
A patent application was filed on June 8, 1989 under the title "Feeding device for shaft-shaped parts with head member." Here, a retractable holding piece for intermittent passage of the parts is disclosed at the outlet of the parts supply pipe, and a ring-shaped article that has moved inside the parts supply pipe is separated from the holding piece and the inner surface of the supply pipe. The head member is temporarily locked by being caught on the holding piece and the threshold of the slope of the supply pipe.

Problems that the Hizaki Invention attempts to solve When we carefully observe the movement behavior of the shaft-shaped parts in the above-mentioned system, we find that they move in the parts supply pipe tilting in various directions until they reach the holding piece. If the tip of the part hits the slope of the holding piece first and is violently bounced back, causing the part to stop in an abnormal position, or the tip of the part hits the upper side of the holding piece and gets caught. Because
This may cause a parts shortage.

B) Means for solving the problem and its operation The present invention was devised by paying attention to the above-mentioned phenomenon, and includes a retractable holding piece that interrupts the passage of the product at the outlet of the component supply pipe. , the feature is that a magnet is attached to the parts supply pipe at a point almost opposite to this holding piece, and the attraction force of the magnet always moves the parts in a constant good posture, so that the parts are correctly received by the holding piece. It can be stopped.

(E) Embodiment First, the embodiment shown in FIGS. 1 to 4 will be explained. There are various shapes of parts that are applicable to the present invention. It is a shaft-shaped component with a member (hereinafter simply referred to as a shaft-shaped component). The illustrated dowel bolt 1 consists of a flange-shaped head 2 and a shaft portion 6, and an ordinary supply rod 4 is exemplified as the supply rod means.

The tip end of the supply rod 4, which moves forward and backward, has a shape as shown in FIG. 4, and is provided with at least a stopper piece 5 for catching the head 2 that has moved. In the case shown, wall members 6.6 are provided on both sides to hold the head 2 more stably.
It has a U-shaped O-frame shape with a release section 7.

The component supply pipe 8 that guides the sword-shaped component 1 is installed in a direction that intersects the stroke direction of the supply rod 4 at an acute angle as shown in the figure, and its end 9 is the tip of the supply rod. It is arranged near 10. A stopper member 11 is formed at the tip of the component supply pipe 8.

As shown in the figure, the right side of the reservoir 9, that is, the side of the tip 10 of the supply rod 4, is an open part 12 corresponding to the outlet, and a holding piece 16 is installed in that part so as to be able to move forward and backward. The head 2 of the bolt 1 that has descended through the supply pipe 8 is locked in a narrow area between the inner surface of the end portion 9 and the holding piece 16 as shown in the figure, and is placed in a so-called -time lock positioning state. .

A magnet 14 is attached to the component supply pipe 8 at a position substantially opposite to the holding piece 16. It is brought into close contact with the outer surface of the component supply pipe 8, and in the next state is fixed with a cover plate 69. The relative position with the holding piece 16 may be as long as it is in the opposing relationship as described above, but as shown in FIG.
Most preferably, it is located slightly above. Note that although the illustrated magnet is a permanent magnet, it may be an electromagnet.

The method for moving the holding piece 15 forward and backward is shown in FIG. 2, and involves fixing the air cylinder 17 to a bracket 16 connected to the outside [15, which will be described later], and connecting its piston rod 18 to the holding piece 16.

The supply rod 4 is housed in the outer cylinder 15 and connected to the upper skin of the outer cylinder 15, and is moved forward and backward by the air cylinder 19, and the piston rod 20 of the cylinder 19 is connected to the supply rod 4. It is. A magnet (permanent magnet) 21 is arranged outside the stopper piece 50 in order to move the bolt 1 in the position shown in FIG. 1 to the supply rod 4 side. The supply rod 4 moves forward and the bolt 1 moves to the opposite member 2.
When approaching the hole 26 of No. 2, the attractive magnetic force on the bolt 1 must be extinguished. For that purpose, magnet 21
It has a mechanism that allows it to retreat.

That is, the magnet 21 is sloped as if buried in the sliding piece 24, and as the sliding piece 24 moves toward the upper blade with respect to the supply rod 4, the magnet 21 moves toward the stopper piece 5.
The suction and holding force against the head 2 substantially disappears. In order to provide this ingenious behavior, the supply rod 4 consists of a hollow shaft 25 and an inner shaft 26 slidably inserted into the hollow shaft 25. The sliding piece 24 is connected to the inch shaft 26 through a fixing bolt 27. It is fixed to . The fixing bolt 27 passes through a long hole 28 formed in the hollow shaft 25 in the stroke direction.

A long hole 29 is formed in the hollow shaft 25 in the stroke direction,
A regulating pin 60 fixed to the inch shaft 26 protrudes as shown. A coil spring 61 is housed in the hollow $1i 125, and its tension causes the regulating pin 60 to abut the lower end of the elongated hole 29. An air cylinder 62 is fixed to the F-side side of the outer cylinder 15, and its piston rod 6
A locking piece 64 is attached to 3, and the locking piece 64 passes through a long hole 65 formed in the outer cylinder 15 in the stroke direction and projects into the outer cylinder 15. The relative positions of the two are set so that the regulating pin 60 comes just in front of the locking piece 64 when the supply rod 4 advances a predetermined stroke.

The component supply pipe 8 and the outer cylinder 15 are welded (numeral 66 is the welded part) in an acute-angled positional relationship as shown in FIG. Although not shown, another magnet (permanent magnet) may be installed at the tip of the inner shaft 26 in order to further strengthen the bolt attraction to the tip 10 of the supply rod. It is also possible to install an electromagnet instead of a magnet. A supply hose 68 is connected to the component supply pipe 8 . The upper surface of the head 2 is brought into close contact with the tip end surface 67 of the supply rod 4.

In addition, the magnetic force of each magnet 14 and 21 is set to L and the bolt 1 is
In order to apply the VC, the parts supply pipe 8, holding piece 16, supply rod 4, sliding piece 24, etc. are made of stainless steel/non-magnetic material.
It is appropriate to make it from stainless steel. Furthermore, in order to prevent inertial swinging of the bolt 1, the regulating protrusion 40 as shown in FIG. 1 may be bent as necessary. This protrusion 40 is not shown in FIG. 4. Further, a thick portion 41 is formed at the end portion 9 to form an inclined surface 42, and components are held in a state along the shaft portion 6 as shown in FIG.

Next, the operation will be explained. When K comes down in the parts supply pipe 8, the bolt 1 is tilted in various directions and is in a friendly position, but when the tip of the bolt 1 approaches the end 9, the magnet 14 Due to the suction force, the bolt tip is separated from the parts supply pipe 8 on the side opposite to the holding piece 15 as shown in the figure.
contact the inner surface of the

If you continue to descend five more times while maintaining this contact, bolt 1
The tip passes through the darkness between the inclined surface 42 and the holding piece 13, and the actual
As shown in the figure, the bolt 1 is not temporarily locked.
Ru. At this time, the holding piece 16 is pulled back to the above-mentioned position, and by the attractive force of the magnet 21,
The bolt 1 moves to the right, and when the head 2 is received by the stopper piece 5, the head 2 comes into close contact with the tip surface 67, and the supply rod tip 2? ! The transition to the section 10 side is completed. Next, the supply rod 4 moves forward and attaches four bolts 1 to its base end.
When the supply rod 4 comes close to the hole 23, the supply rod 4 stops, and the locking piece 64 is pulled up by the air cylinder 32 one after the other. is transmitted to the magnet 21 via the inner 26, the fixing bolt 27, and the sliding piece 24, and the final VC is transmitted from the magnet 21 to the head 2.
Since the bolt 1 moves away from the bolt 1, the suction force on the head 21C substantially disappears, and the bolt 1 falls into the hole 26 from its tip.

In the embodiment described above, the open part 12 which is the outlet is formed at the same position as the part supply pipe 8 perpendicular to the opposite direction, but in the case of FIG. part 46
is open in the longitudinal direction of the tube 8. and,
A protrusion 44 is formed on the opposite side of the holding piece 16 to hold the detail 6. The operation in the case shown in the figure is also the same as the previous one, so the explanation is omitted.

(c) Effects According to the present invention, since the magnet is attached to the component supply pipe at a location substantially opposite to the holding piece, the tip of the shaft-like component always moves away from the holding piece. In particular, the tip of the component does not interfere abnormally with the holding piece, and the gap d mentioned in section e1 is reliably resolved.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIG. 1 is a vertical side view, the second figure is a cross-sectional view (21-(2)) in FIG. 1, and FIG. FIG. 4 is a sectional view, FIG. 4 is a three-dimensional view, and FIG. 5 is a longitudinal side view. 8...Parts supply pipe, 12.43...Outlet, 1...
Parts, 15... Holding piece, 14... Magnet.

Claims (1)

[Claims] A part posture of a single-item supply pipe characterized in that a retractable holding piece is provided at the outlet of the parts supply pipe to interrupt the passage of the parts, and a magnet is attached to the parts supply pipe at a location substantially opposite to this holding piece. Control device.