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US 2020/0048014 A1Published application
Suction device
AssigneeSMC Corporation
InventorsToru NAKAYAMA, Toru SUGIYAMA, Noriyuki MIYAZAKI, Masaru SAITOH, Yukiya GOTO
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AssigneeSMC Corporation
InventorsToru NAKAYAMA, Toru SUGIYAMA, Noriyuki MIYAZAKI, Masaru SAITOH, Yukiya GOTO
Estimating the term…
A suction device includes an adapter having in the interior thereof a supply passage to which a negative pressure fluid is supplied, a bellows connected to a distal end of the adapter, and a pad member disposed at a distal end of the bellows and to which a workpiece is attracted under suction. In addition, the suction device attracts the workpiece under suction by a negative pressure fluid which is supplied to the pad member through the supply passage and the bellows. An attachment which is capable of being tilted with respect to the axis of the bellows is provided in the interior of the bellows. In the attachment, a main body portion thereof is disposed in facing relation to a suction surface of a skirt, and a shaft portion is inserted into the supply passage at a time that the workpiece is attracted under suction.
A suction device, comprising a body having in the interior thereof a passage to which a negative pressure fluid is supplied, a bellows connected to an end of the body, and a suction member disposed at an end of the bellows and to which a workpiece is attracted under suction, wherein the suction device attracts the workpiece under suction by the negative pressure fluid which is supplied to the suction member through the passage and the bellows;
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
With vacuum or magnetic holding means: with vacuum
Devices for picking-up and depositing articles or materials: incorporating pneumatic, e.g. suction, grippers
With vacuum: details of suction cup structure, e.g. grooves or ridges
By suction means: for handling bulk or bags
Term end not estimated
This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2018-149077 filed on Aug. 8, 2018, the contents of which are incorporated herein by reference.
The present invention relates to a suction device capable of attracting-under-suction and transporting a workpiece under a supply action of a negative pressure fluid.
Heretofore, a suction device has been known for attracting-under-suction and transporting a workpiece by a supplied negative pressure fluid. In such a suction device, for example, the workpiece, which is inclined with respect to a suction pad, is attracted under suction, and in such a case, the suction pad may not be kept in close contact with the workpiece, and the negative pressure fluid does not effectively act with respect to the workpiece, thus resulting in a suction defect.
FIG. 1 is an overall cross-sectional view of a suction device according to a first embodiment of the present invention;
FIG. 2 is an enlarged cross-sectional view in the vicinity of a pad member and an attachment in the suction device of FIG. 1;
FIG. 3 is an explanatory drawing of operations, showing a state in which a workpiece is attracted under suction and moved upwardly by the suction device of FIG. 1;
A suction device 10, as shown in FIGS. 1 to 4, includes an adapter (body) 12 connected through piping to a non-illustrated negative pressure supply device, a bellows 14 connected to a lower end of the adapter 12, a pad member (suction member) 16 formed at a lower end (distal end) of the bellows 14, and an attachment (tilting member) 18 accommodated in the interior of the bellows 14 and the pad member 16.
The adapter 12 is formed, for example, in a cylindrical shape from a metal material, and on a lower end thereof, a connecting part 20 is formed to which the bellows 14 is connected, whereas on an upper end thereof, a threaded portion 24 is formed to which a joint 22 is connected. Between the connecting part 20 and the threaded portion 24 in the adapter 12, a flange member 26 is formed that projects in a direction perpendicular to the axial direction (the direction of arrows A and B).
In addition, a seal ring 28 is attached to the flange member 26 via an annular groove on an end surface on the side of the threaded portion 24 (in the direction of the arrow A). Moreover, when the joint 22 is connected with respect to the adapter 12, the joint 22 abuts against the seal ring 28, thereby preventing the negative pressure fluid from leaking between the two members.