JPH04298416A - Method and device for supply control of parts - Google Patents

Abstract

PURPOSE:To obtain a transfer force effectively, and achieve a correct supply control by inserting a transfer member having a throughhole and a regulation surface into a casing having an entrance hole and an exit hole to be capable of advancing and retracting, providing an air jet hole at a feed tube connected with the exit hole, and providing a parts suction magnet at a position on the feed side to the jet port. CONSTITUTION:An entrance hole 14 and an exit hole 15 are bored facing each other in a casing 13, and an entrance tube 16 and a feed tube 17 are welded with them respectively. A transfer member 18 is inserted into the casing 13, a throughhole 19 is bored in the transfer member 18 to connect the entrance hole 14 with the exit hole 15, and a regulation surface 20 for closing the entrance hole 14 is formed simultaneously. In this condition, the transfer member 18 slides to let the throughhole 19 coincide with the entrance hole 14 and the exit hole 15, so a bolt 23 passes the throughhole 19 to get into the feed tube 17 and attracted by a magnet 28 to an inner wall of the feed tube 17. The bolt gets over the attracting force of the magnet 28 by high pressure air from an air jet port 26 to be fed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply control device installed on a component transport path and a method therefor, and is used in the field of reliably delivering a predetermined number of components.

2. Description of the Related Art As a conventional technique corresponding to the present invention, there is Japanese Utility Model Application Publication No. 61-97385. There is a figure 7
A component separation device is disclosed. That is, the transfer member 2 is inserted into the outer box 1 in a state that it can move forward and backward, and the inlet passage 3 and the outlet passages 4 and 5 are open to the outer box 1. The transfer member 2 has a housing recess 6 formed at its distal end with openings on the inlet side and the advancing side, and a through hole 7 penetrated therethrough at a certain distance. Note that 8 is an air cylinder that moves the transfer member 2 forward and backward. The component handled here is a projection nut 9, and projections 10 for welding are provided at its four corners. Although not explained in this publication, the reference numeral 11 shown in the figure is understood to be an air injection hole opened in the outer case 1, and a similar air injection hole is also opened on the back side of the housing recess 6 shown in FIG.

Next, to explain the operation of the above-mentioned prior art, two nuts 9 are always fed, and one remains in the accommodation recess 6 in the state shown in FIG. It is waiting inside the entrance passage 3. When the transfer member 2 is moved to the left by the air cylinder 8 and the through hole 7 matches the inlet passage 3 and the outlet passage 4, the nut 9 that was waiting in the inlet passage 3 is delivered to the outlet passage 4 through the through hole 7. On the other hand, the nut 9 in the accommodation recess 6 is located at the air injection hole 11, and the air ejected from the same hole 11 (the hole through which this air passes also opens in the accommodation recess 6 of the transfer member 2). ), the nut is then delivered to the other outlet passage 12.

0003

[Problems to be Solved by the Invention] According to the above-mentioned conventional technology, two nuts are in contact with each other as shown in FIG. If the protrusions 10 of the nuts are engaged, there is a problem that the stroke of the transfer member cannot be made smoothly. Furthermore, since two or more parts must be supplied at all times, supply control for this must be performed using a special mechanism, which is disadvantageous in terms of structural simplification.

0004

[Means for Solving the Problems and Their Effects] The present invention has been provided to solve the above-mentioned problems. A transfer member having a hole and a regulating surface is inserted in a movable state, and an air nozzle hole is provided in the delivery pipe connected to the outlet hole, and a magnet for attracting parts is installed at a position on the delivery side of the nozzle hole. The feature is that the parts are waiting on the regulating surface in advance, and when the transfer member strokes and the through hole matches the inlet hole and the outlet hole, the part is sent through the through hole to the delivery pipe and sent out by the magnet. The parts are stored by suction on the inner surface of the tube, and after the transfer member closes the outlet hole, compressed air is ejected from the air injection hole, and the force of the compressed air causes the parts to be sent out through the delivery tube against the magnetic attraction. Then, the next component is again placed on standby on the regulating surface. According to a second aspect of the present invention, in the first aspect, the air nozzle hole and the magnet are positioned opposite to each other when viewed from the cross-sectional direction of the delivery tube, and the ejected air is blown directly against the component. Claim 3 is a method carried out using the apparatus as claimed in Claim 1, in which a component is placed on standby in advance on a regulating surface, and the component is removed by matching the inlet hole and the outlet hole. The material is passed through the delivery pipe and adsorbed to the inner wall of the pipe by a magnet, and immediately after that, the inlet hole is closed by the regulating surface of the transfer member, and then the parts inside the delivery pipe are blown away by an air jet, and at about the same time, the next The part is then brought onto the restricted surface.

[0005]

[Embodiment] The first embodiment shown in FIGS. 1 to 4 will be explained below. An inlet hole 14 and an outlet hole 15 are opened in the outer box 13 in opposing positions, and an inlet pipe 16 and A delivery pipe 17 is welded. The cross section of the outer box 13 is rectangular, as is clear from FIG. 3, in which the transfer member 18 as shown in FIG.
It is inserted inside. A through hole 19 is formed in the transfer member 18 so that the inlet hole 14 and the outlet hole 15 can communicate with each other, and a regulating surface 20 that closes the inlet hole 14 is formed at the same time. In order to give the transfer member 18 forward and backward movement, the air cylinder 2
1 is connected to the outer box 13, and its piston rod 22
is fixed to the transfer member 18. Note that the component 23 handled in this embodiment is a bolt consisting of a shaft portion 24 and a flange portion 25.

[0006] Air injection holes 26 are provided in the delivery pipe 17.
A connecting pipe 27 is welded continuously thereto, and an air hose 28' is connected thereto. A magnet 28 is installed at a position closer to the delivery side than the air injection hole 26. The magnet here is a permanent magnet, and is housed in the case 29 and attached to the outer surface of the delivery tube 17. The positional relationship between the magnet 28 and the air nozzle hole 26 when viewed in the component delivery direction is as described above, but the positional relationship when viewed from the cross-sectional direction of the delivery pipe 17 is such that they face each other in the diametrical direction as shown in FIG. ing. Note that a supply hose 30 extending from a parts feeder (not shown) is connected to the inlet pipe 16. Furthermore, it is preferable that the delivery tube 17 be made of a non-magnetic material such as stainless steel to further strengthen the magnetic force acting on the components.

Next, the operation will be explained. At the stroke position of the transfer member as shown in FIG. 1, the bolt 23 is waiting on the regulating surface 20 as shown by the two-dot chain line. In this state, when the transfer member 18 slides and the through hole 19 matches the inlet hole 14 and the outlet hole 15, the bolt 23 is inserted into the through hole 1.
9 and enters the delivery pipe 17, but is attracted to the inner wall of the delivery pipe 17 by the magnet 28. Bolt 23 is through hole 19
Immediately after passing through, the transfer member 18 strokes and closes the inlet hole 14 and outlet hole 15 as shown in FIG. 1, and high pressure air from the air injection hole 26 is blown against the bolt 23.
The bolt overcomes the attraction force of the magnet 28 and is sent out. At approximately the same time as this feeding, the next bolt 23 is fed again as shown by the two-dot chain line and waits on the regulating surface 20.

In FIG. 5, the magnet 28 is in the form of an electromagnet, and as shown in the figure, an iron core passes through an exciting coil 31 and is attached to the outer surface of the delivery pipe 17 with a case 29. If the excitation is stopped at the same time as or just before the air is ejected, the parts will be delivered more reliably.

FIG. 6 shows a type in which the permanent magnet 28 is separated from the outer surface of the delivery pipe 17 by an air cylinder 32 to eliminate magnetic force on the component.
is fixed, and a permanent magnet 28 is attached to the piston rod 34.

0010

[Effects] According to the present invention, the preceding part is temporarily held by a magnet, and the next part is stopped by a transfer member, so there is no phenomenon of parts coming into contact with each other, which is different from the conventional technology. Problems such as those mentioned can definitely be solved. Since air is injected to a place that is temporarily held by a magnet, and the outlet hole is closed when air is injected, the air pressure acts positively on the parts.
The transfer force to the parts can be effectively obtained, and since the injection transfer starts from temporary locking, it is possible to accurately control the supply according to the required timing. Since the positional relationship between the air nozzle hole and the magnet is opposite when viewed from the cross-sectional direction of the delivery pipe, the ejected air hits the parts directly, and the dynamic pressure of the ejected air is effectively applied to the parts. It is effective for powerful yet moderate parts delivery.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing the entire apparatus of the present invention.

FIG. 2 is a three-dimensional view of the transfer member.

FIG. 3 is a longitudinal cross-sectional view of the device.

FIG. 4 is a partial cross-sectional plan view.

FIG. 5 is a partial longitudinal cross-sectional view.

FIG. 6 is a partial longitudinal cross-sectional view.

FIG. 7 is a vertical cross-sectional view of a conventional example.

[Explanation of symbols]

14 Entrance hole 15 Exit hole 13 Outer box 19 Through hole 20 Regulatory aspects 18 Transfer member 17 Delivery pipe 26 Air injection hole 28 Magnet

Claims (3)

[Claims] Claim 1: A transfer member having a through hole and a regulating surface is inserted into an outer box provided with an inlet hole and an outlet hole in a state where it can move forward and backward,
1. A parts supply control device, characterized in that an air nozzle hole is provided in a delivery pipe connected to an outlet hole, and a magnet for attracting parts is installed at a position on the delivery side of the nozzle hole. 2. The component supply control device according to claim 1, wherein the air injection hole and the magnet are positioned opposite to each other when viewed from the cross-sectional direction of the delivery tube. 3. A transfer member having a through hole and a regulating surface is inserted into an outer box provided with an inlet hole and an outlet hole in a state where it can move forward and backward,
An air nozzle hole is provided in the delivery pipe connected to the outlet hole, and a magnet for attracting parts is installed at a position on the delivery side of this nozzle hole.
By aligning the through hole with the inlet hole and the outlet hole, the parts that have passed are attracted to the inner wall of the delivery pipe using a magnet, and after passing through, the transfer member is moved to close the inlet hole on the regulating surface, and the air from the air injection hole is removed. A method for controlling the supply of parts, characterized in that the next part is fed almost at the same time as the part is sent out by ejection and is kept on standby on a regulating surface.