JPH0479086U

JPH0479086U -

Info

Publication number: JPH0479086U
Application number: JP12113790U
Authority: JP
Priority date: 1990-11-19
Filing date: 1990-11-19
Publication date: 1992-07-09

Description

[Brief explanation of drawings]

第１図ないし第４図はこの考案に係わる自己負
圧式バキユームカツプの一実施例を示し、第１図
は自己負圧式バキユームカツプのバキユームカツ
プ本体をワークに接触させた直後の状態を示す断
面説明図、第２図は第１図の自己負圧式バキユー
ムカツプのバキユームカツプ本体をさらにワーク
に接触させた際に弁体が弁座から離間した状態を
示す断面説明図、第３図は第１図の自己負圧式バ
キユームカツプにワークを吸着した状態を示す断
面説明図、第４図は第１図の自己負圧式バキユー
ムカツプからワークを解放した状態を示す断面説
明図、第５図は第１図の自己負圧式バキユームカ
ツプの適用例を概略的に示す側面説明図、第６図
はこの考案に係わる自己負圧式バキユームカツプ
の他の実施例を示す断面説明図、第７図は従来の
自己負圧式バキユームカツプの使用状態を示す断
面説明図、第８図は第７図に示す従来の自己負圧
式バキユームカツプの構成を示す断面説明図であ
る。１，３１……自己負圧式バキユームカツプ、２
……バキユームカツプ本体、１０，４０……チエ
ツクバルブ、１１，４１……弁座、１３，４３…
…弁体、１３ａ……ピストン部（受圧部）、４３
ａ……受圧面（受圧部）、１５，４５……エアコ
ンプレツサ（空気圧付与手段）、Ｓ……空間、Ｐ
……シート材（ワーク）、Ｗ……ワーク。 1 to 4 show an embodiment of the self-negative pressure type vacuum cup according to this invention. Figure 2 is a cross-sectional explanatory diagram showing the state in which the valve body of the self-negative pressure type vacuum cup shown in Figure 1 is further brought into contact with a workpiece, and the valve body is separated from the valve seat. Figure 3 is a cross-sectional view of the self-negative pressure type vacuum cup shown in Figure 1. 4 is a sectional explanatory diagram showing a state in which a workpiece is suctioned to the self-negative pressure type vacuum cup shown in FIG. 1, FIG. FIG. 6 is a cross-sectional view showing another embodiment of the self-negative pressure type vacuum cup according to the invention; FIG. 7 is a cross-sectional view showing how the conventional self-negative pressure type vacuum cup is used. 8 are cross-sectional explanatory views showing the structure of the conventional self-negative pressure type vacuum cup shown in FIG. 7. 1, 31...Self-negative pressure vacuum cup, 2
...Vacuum cup body, 10,40...Check valve, 11,41...Valve seat, 13,43...
...Valve body, 13a...Piston part (pressure receiving part), 43
a...Pressure receiving surface (pressure receiving part), 15, 45...Air compressor (air pressure applying means), S...Space, P
...Sheet material (work), W...work.

Claims

[Claims for Utility Model Registration] A vacuum cup body is provided, and a valve body and a valve seat are provided to maintain a negative pressure in the space formed between the vacuum cup body and the workpiece when the workpiece is adsorbed to the vacuum cup body. In a self-negative pressure vacuum cup equipped with a check valve, a pressure receiving part is provided on the valve body of the check valve, compressed air is supplied to the valve body side, air pressure is applied to the pressure receiving part of the valve body, and the valve body is A self-negative pressure type vacuum cup, characterized in that an air pressure applying means is provided for moving the compressed air in a direction away from a valve seat to supply the compressed air to a space formed between the vacuum cup main body and a workpiece.