JPH03232640A - Sucking device - Google Patents

Abstract

PURPOSE:To facilitate removal of a substance to be sucked having tackiness by covering a contact part between a sucking pad and the substance to be sucked with a non-sticky sheet. CONSTITUTION:A sheetform sucking pad 7 formed of a rubbery substance is covered with a non-sticky sheet 9, and openings 10 are formed in positions located facing recessed parts 6 of a base plate 3. When a sucking device 1 is moved to a place where a plate-form substance 2 is placed, a vacuum pump 5 is run to suck the plate-form substance 2. In which case, since the openings 10 are formed in the sheet 9, air is sucked through the openings 10, a fine holes 8, and the recessed parts 6 without exercising an adverse effect on suction of the plate-form substance 2 to such the plate-form substance 2. In this case, since most of the contact parts with the plate-form substance 2 are the non- sticky sheet 9, in removal of the plate-form substance 2, suction of the plate- form substance 2 is stopped through the stop of the pump 5, and the plate-form substance 2 is easily removed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a suction device for suctioning a plate-like object such as a printed wiring board, or other objects to be suctioned.

[Conventional technology]

FIG. 2(a) is a front view of a conventional suction device for suctioning a plate-shaped object such as a printed wiring board, and FIG. 2(b) is a cross-sectional view taken along line A-A.

In the figure, (1) is an adsorption device that adsorbs a plate-like object (2) such as a printed wiring board as an object to be adsorbed, and (3)
) is the base plate that constitutes the adsorption device (1), (4)
(5) is a vacuum air piping formed in a branched shape in the base plate (3), and (5) is a vacuum air piping (4).
A vacuum pump (6) connected to the vacuum air pipe (4) is a suction port formed at the tip of the vacuum pump (6). (7) is a sheet-like suction pad made of a rubber-like material provided on the suction surface (3a) of the base plate (3), and a large number of pores (8) are formed at positions corresponding to the recesses (6). has been done.

In such a conventional suction device (1), when the suction device (1) is moved to a location where the plate-like object (2) is located, or when the plate-like object (2) is conveyed to the surface of the suction device (1). When the suction pad (7) is removed by the vacuum pump (5),
When air is suctioned through the pores (8) and recesses (6) of the suction pad (7), a plate-like body (
If 2) is present, the pore (8) force 5 is blocked by the plate-like body (2), and the plate-like body (2) is adsorbed.

In addition, a plate-shaped body (2) is placed at the position of the pore (8) of the suction pad (7).
), the suction pad (
7) is attracted to the fourth part (6) which becomes the suction port of the vacuum air pipe (4). At this time, since the pores (8) are formed in a position different from the outlet of the vacuum air pipe (4), the adsorbed suction pad (7) blocks the outlet of the vacuum air pipe (4), and the vacuum pump (5) Prevents suction loss. This results in plate-like bodies of different sizes (2)
However, it can be adsorbed by the same adsorption device (1).

When removing the plate-shaped body (2), use a vacuum pump (5).
), the suction of the plate-shaped body (2) is stopped and removed from the suction device (1).

[Problem to be solved by the invention]

The conventional suction device is constructed as described above, and the sheet-like suction pad (7) is provided with many pores (8), so that all the parts that come into contact with the plate-like body (2) are covered with the sheet-like suction pad (7). If the surface of the plate-like body (2) is sticky, the adhesion of the rubber of the suction pad (7) and the stickiness of the plate-like body (2) will be different. Therefore, even if the suction by the vacuum pump (5) is stopped, there is a problem that the plate-shaped body (2) cannot be removed.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a suction device that has a simple structure and can be easily removed even with sticky objects.

[Means to solve the problem]

An adsorption device according to the present invention includes a sheet-like adsorption pad and adsorbs an object to be adsorbed by reducing pressure.
The contact portion of the suction pad with the object to be suctioned is covered with a non-adhesive sheet.

[For production]

In the suction device of this invention, the part of the sheet-like suction pad that comes in contact with the object to be adsorbed is covered with a non-adhesive sheet, and the suction pad has a double structure, so that the object to be adsorbed is sticky. Even in such cases, it can be reliably removed simply by releasing the reduced pressure.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
Figure (a) is a front view of the adsorption device of the example, and (b) is its B.
-B sectional view, in which the same reference numerals as in FIG. 2 indicate the same or corresponding parts. (9) is a non-adhesive sheet pasted on the sheet-like suction pad (7) made of a rubber-like material, so as to cover the contact part of the suction pad (7) with the plate-like material (2). An opening (10) is provided at a position corresponding to the recess (6) of the base plate (3), which allows suction from the pores (8) of the suction pad (7) and
) The vacuum air piping (4) outlet can be blocked by deformation. The other configurations are the same as the adsorption device shown in FIG.

In the suction device configured as described above, when the suction device (1) is moved to a location where the plate-like object (2) is located, or when the plate-like object (2) is conveyed to the surface of the suction device (1). When this happens, operate the vacuum pump (5) to remove the plate (
2), the non-adhesive sheet (9) has an opening (10
) is formed, air is sucked through the openings (10), pores (8) and recesses (6) without adversely affecting the adsorption of the plate (2). ) is adsorbed. At this time, most of the contact parts with the plate-shaped body (2) are non-adhesive sheets (9), so when removing the plate-shaped body (2), by stopping the vacuum pump (5), the plate-shaped body The adsorption of the body (2) is stopped and the plate-like body (2) can be easily removed.

In the above embodiment, a plate-shaped object is used as the object to be attracted, but an object of other shape that can be attracted may be used as the object to be attracted.

〔Effect of the invention〕

As described above, according to the present invention, since the contact portion of the sheet-like suction pad with the object to be attracted is covered with a non-adhesive sheet, the object to be attracted can be easily removed with a simple structure. be.

[Brief explanation of drawings]

FIG. 1(a) is a front view showing an adsorption device according to an embodiment of the present invention, FIG. 1(b) is a sectional view taken along line B-B, FIG. 2(a) is a front view of a conventional device, and FIG. 2(b) is a front view thereof. It is an AA sectional view. In each figure, the same reference numerals indicate the same or corresponding parts, (1)
is an adsorption device, (2) is a plate-like body, (3) is a base plate, (4) is a vacuum air piping, (5) is a vacuum pump, (6) is a recess, (7) is an adsorption pad, and (8) is The pores (9) are the non-adhesive sheet, and (10) are the openings.

Claims (1)

[Claims] (1) An adsorption device that includes a sheet-like suction pad and adsorbs an object under reduced pressure, characterized in that a portion of the suction pad that comes into contact with the object is covered with a non-adhesive sheet.