IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0935770
(2007-11-06)
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등록번호 |
US-8474660
(2013-07-02)
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발명자
/ 주소 |
|
출원인 / 주소 |
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대리인 / 주소 |
Wood, Herron & Evans, L.L.P.
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인용정보 |
피인용 횟수 :
1 인용 특허 :
11 |
초록
▼
An apparatus for dispensing an adhesive generally comprises a dispensing module, a liquid supply component, and an actuating assembly. The actuating assembly includes a housing proximate the dispensing module and a three-way solenoid valve operatively coupled to the housing. A piston positioned with
An apparatus for dispensing an adhesive generally comprises a dispensing module, a liquid supply component, and an actuating assembly. The actuating assembly includes a housing proximate the dispensing module and a three-way solenoid valve operatively coupled to the housing. A piston positioned within a piston chamber of the housing is configured to reciprocate along a piston axis when operated by pressurized air controlled by the solenoid valve. The piston is operatively coupled to a valve element within the dispensing module by a pivot arm.
대표청구항
▼
1. An apparatus for dispensing an adhesive, comprising: a dispensing module having a liquid inlet, a liquid passage in communication with said liquid inlet, an outlet in communication with said liquid passage to define a flow path from said liquid inlet to said outlet, a valve seat located in said f
1. An apparatus for dispensing an adhesive, comprising: a dispensing module having a liquid inlet, a liquid passage in communication with said liquid inlet, an outlet in communication with said liquid passage to define a flow path from said liquid inlet to said outlet, a valve seat located in said flow path, and a valve element movable within said liquid passage into and out of engagement with said valve seat to selectively allow and prevent flow of the adhesive through said outlet;a liquid supply component coupled to said dispensing module and having a supply passage for directing adhesive to said liquid inlet, said liquid supply component being constructed as a component independent from said dispensing module; andan actuating assembly, comprising: a housing at least partially received in said liquid supply component, said housing constructed as a component independent from said dispensing module, said housing including a piston chamber and a piston configured to reciprocate within said piston chamber along a piston axis, said piston being operatively coupled to said valve element; anda three-way solenoid valve operatively coupled to said housing and configured to operate said piston, said solenoid valve having an inlet port for receiving pressurized air, a first outlet port continuously communicating with said inlet port, a second outlet port selectively communicating with said inlet port, and an exhaust port selectively communicating with said second outlet port. 2. The apparatus of claim 1 wherein said solenoid valve further includes a poppet movable between a first position and a second position, said first outlet port communicating with said inlet port when said poppet is in said first position and said second position, said second outlet port communicating with said inlet port when said poppet is in said second position, and said exhaust port communicating with said second outlet port when said poppet is in said first position. 3. The apparatus of claim 2 wherein said poppet of said solenoid valve is movable along an axis generally transverse to said piston axis. 4. The apparatus of claim 1 wherein said piston further includes a piston head sealingly engaging said piston chamber, said piston head having a top surface and a bottom surface, said first outlet port being configured to direct pressurized air to said bottom surface, and said solenoid valve being configured to selectively direct pressurized air through said second outlet port and to said top surface to operate said piston. 5. The apparatus of claim 4, further comprising: a thermal isolator positioned between said solenoid valve and said housing, said thermal isolator being formed from a thermally insulating material to reduce heat transfer from said housing and said dispensing module to said solenoid valve. 6. The apparatus of claim 5 wherein said thermal isolator further includes a first passage extending from said first outlet port of said solenoid valve to a portion of said piston chamber communicating with said bottom surface of said piston head, a second passage extending from said second outlet port of said solenoid valve to a portion of said piston chamber communicating with said top surface of said piston head, and a third passage configured to direct pressurized air from said exhaust port of said solenoid valve to outside said thermal isolator. 7. The apparatus of claim 1 wherein said solenoid valve further includes an outer body having fins configured to dissipate heat transferred to said solenoid valve. 8. The apparatus of claim 1 wherein said piston within said housing comprises a piston head, an intermediate portion extending from said piston head, and a piston shaft extending from said intermediate portion, said piston head and said intermediate portion each having a seal adapted to sealingly engage said piston chamber, said piston chamber having a bearing surface adapted to guide said piston shaft as said piston moves within said piston chamber. 9. The apparatus of claim 1, further comprising: a pivot arm extending into said dispensing module and coupled to said valve element,wherein said housing of said actuating assembly includes an opening configured to receive a portion of said pivot arm such that said piston is operatively coupled to said valve element by said pivot arm. 10. An apparatus for dispensing an adhesive, comprising: a dispensing module having a liquid inlet, a liquid passage in communication with said liquid inlet, an outlet in communication with said liquid passage to define a flow path from said liquid inlet to said outlet, a valve seat located in said flow path, and a valve element movable within said liquid passage into and out of engagement with said valve seat to selectively allow and prevent flow of the adhesive through said outlet;a liquid supply component coupled to said dispensing module and having a supply passage for directing adhesive to said liquid inlet, said liquid supply component being constructed as a component independent from said dispensing module; andan actuating assembly, comprising: a housing at least partially received in said liquid supply component, said housing constructed as a component independent from said dispensing module, said housing including a piston chamber and a piston configured to reciprocate within said piston chamber along a piston axis, said piston being operatively coupled to said valve element; anda three-way solenoid valve operatively coupled to said housing along said piston axis and configured to operate said piston, said solenoid valve having an inlet port for receiving pressurized air, a first outlet port continuously communicating with said inlet port, a second outlet port selectively communicating with said inlet port, and an exhaust port selectively communicating with said second outlet port. 11. The apparatus of claim 10 wherein said liquid supply component defines a recess and said housing is at least partially received within said recess. 12. The apparatus of claim 11 wherein said housing including a reduced diameter section defining a portion of said supply passage so that adhesive can flow around said housing between said reduced diameter section and said liquid supply component. 13. The apparatus of claim 10, further comprising: a pivot arm extending into said dispensing module and coupled to said valve element,wherein said housing of said actuating assembly includes an opening configured to receive a portion of said pivot arm such that said piston is operatively coupled to said valve element by said pivot arm.
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