JPS62167190A - Part sucker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a component suction device with detection for suctioning and detaching articles.

2. Description of the Related Art A conventional component suction device of this type has a structure as shown in FIG. That is, in the base body 1, the detector 2
is attached via the mounting plate 3, and the upper surface 6 of the object 4 is attached to the detector 2.
It is becoming more and more detectable. Attach the suction pad 6 to the base body 1VC with the bolt 7, and attach the base body 1 to the fixed shaft 1o with the hole 9 with the nut 8. It is designed to absorb.

Problems to be Solved by the Invention However, with such a structure, the object 5 is detected by the detector 2, opened by a solenoid valve (not shown) that opens and closes a circuit in the suction pad 6, and vacuum suction is performed. and
There was a problem that if the detector 2 malfunctioned, the solenoid valve would not open and the detector would not attract.

That is, if the object 4 is transparent, this detector 2 will be
This is because the light is reflected from the object 4 and detected, so there is no reflection, and the material 9 of the object 4
It could not be detected due to the color etc. Also, suction pad 6
It was a complicated process, requiring a separate electrical signal to open the internal circuit and a solenoid valve to open.

Therefore, the present invention detects objects regardless of their color or material, keeps the circuit closed at all times without applying an electrical signal, and automatically opens the circuit when an object is picked up. It is something.

Means for Solving the Problems The technical means of the present invention for solving the above problems consists of a suction pad capable of suctioning parts using a vacuum source, and a suction pad that is slidable in the axial direction and is provided on the main body, so that the parts are always attached to each other. It is configured to be biased in the direction of contact to isolate the inside of the suction pad from the vacuum source, and is capable of abutting the component at a predetermined position. and a valve body configured to communicate with the vacuum source.

For production The effect of this technical means is as follows.

That is, when an object is not attracted, the circuit within the suction pad is closed by the valve body. When the suction pad comes into contact with an object, the valve body is pushed up by the object, opening a circuit and vacuum suctioning the object. On the other hand, the position of the pushed-up valve body is detected by a detector, and an electric signal indicating the presence of an object is sent to the equipment side.

As a result, an object can be detected and an electrical signal can be provided regardless of the material and color of the object. Also, by applying the valve body directly to an object, the circuit can be opened. To close the circuit, the vacuum source is turned off, which reduces the vacuum pressure in the circuit, dislodges the object, and lowers the valve body, closing the circuit.

EXAMPLE Hereinafter, a component suction device according to an example of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 11 denotes a valve body which is slidably attached in the direction of arrow a at a guide portion via a spring 13 and opens and closes the hole 2o. The valve body 11 is slid by the object 6 through the valve seat 19 in the direction of arrow a. 2a is a detector that detects the valve body 11 by emitting and receiving light;
It is fixed to a fixed shaft 15 having a diameter of 4. The fixed shaft 1
5 is fixedly attached to the pace main body 1 by a screw 8, and is blocked from air by a joint surface 16. The pace main body 1 has the suction pad 6 fixedly attached with a bolt 7.

The spring 13 is still held by the spring seat 17. Said valve seat 11. The spring 13 and the spring seat 17 are attached to the fixed shaft 15. The threaded portion 18 is fastened by the guide portion 12 so as not to fall in the direction of arrow d. Further, the fixed shaft 15 is constantly evacuated from the suction space 14 in the direction of arrow C. Further, the guide portion 12 is provided with a hole 22 that communicates with the suction space 14 and the suction space 2o.

The operation of the component suction device configured as described above will be explained below.

First, Figure 2 shows the state before the object 5 is adsorbed, and the valve body 2
0 is pushed out in the direction of arrow d by the spring 13 to the contact surface 21, and the suction space 14 and the suction side space 2
0 is blocked by the contact surface 21. In this state, detector 2
gives a signal to the outside that the object 5 is absent.

FIG. 1 shows the state in which the object 5 is attracted, the valve body 20 is pushed up in the direction of arrow e through the valve seat 19, and the suction space 14 and the suction side space 2o are between the contact surface 21. A space is created in which the space communicates through the hole 22, and the object 5 is attracted. The detector 2 also provides a signal indicating that the valve body 11 is present and a signal indicating that the pick object 5 is present to the outside.

As described above, according to this embodiment, even if the object is transparent, the presence or absence of the object can be reliably detected and suctioned, and the suction circuit can be activated automatically, so peripheral equipment such as pulp can be removed. This is not necessary and costs can be reduced. Also,
The reliability of the device itself is improved and it can be made smaller and lighter.

Effects of the Invention Since the present invention pushes up and lowers the valve body that comes into contact with an object, it does not require electrical power, saves power, has a simple structure, has fewer failures, and is less likely to open a circuit incorrectly. It is effective at low cost.

That is, in the present invention, since the valve body for opening and closing the circuit is provided inside the suction pad, no piping is required, and the device is made smaller and lighter.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the main parts of a component suction device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the main parts when the circuit is closed, and FIG.
The figure is a sectional view of a conventional component suction device. 12...Guiding part, 13...Spring,
11... Valve body, 19... Valve seat, 22...
... Hole, 20 ... Adsorption space, 14 ...
...Suction space, 16...Fixed shaft. Name of agent: Patent attorney Toshio Nakao and 1 other person 2a
, - Ichino Ikemaki 11 - One house [Zui ( I2 - Re-attack FPJ section! 3 - Swinging (4 - Sakamen sky opening - Adsorption space 21! - - 7)

Claims (2)

[Claims] (1) A suction pad capable of suctioning parts by a vacuum source, and a suction pad that is provided on the main body so as to be slidable in the axial direction, and is always biased in the direction of contacting the component to shut off the inside of the suction pad and the vacuum source. A component suction device comprising a valve body configured to be able to abut the component at a predetermined position, and configured to move relative to the main body upon abutment, thereby communicating the inside of the suction pad with a vacuum source. (2) The component suction device according to claim 1, further comprising a detection unit that detects whether or not a component is being suctioned based on the position of the valve body.