초록 ▼

The invention relates to a valve particularly for transferring small portions of glue onto folding tabs of (cigarette) packs. A closing element (15) of the valve is actuated by different elements, that is to say, is moved between the open and closed positions, on the one hand by two permanent magnet

The invention relates to a valve particularly for transferring small portions of glue onto folding tabs of (cigarette) packs. A closing element (15) of the valve is actuated by different elements, that is to say, is moved between the open and closed positions, on the one hand by two permanent magnets (24, 25) arranged a short distance from each other and having aligned poles such that the closing element is permanently kept in the closed position by the permanent magnets (24, 25). On the other hand, an actuating element, which is configured as an electromagnet (23), acts to move the closing element (15) into the open position in a controlled way by overcoming the closing forces. The closing element (15) is designed in a particular way, that is to say, with channels extending along the outside in the longitudinal direction for the medium or the glue.

대표청구항 ▼

1. A valve for fluid media having a valve housing (11), a discharge or valve opening (13), and a closure element (15) which is movable within the valve housing (11) and which, with an end-sided closing piece (16), when the valve is closed, is held in sealing contact with a valve seat (14), the impro

1. A valve for fluid media having a valve housing (11), a discharge or valve opening (13), and a closure element (15) which is movable within the valve housing (11) and which, with an end-sided closing piece (16), when the valve is closed, is held in sealing contact with a valve seat (14), the improvement comprising: a) permanent magnets (24, 25), wherein the closure element (15) is movable in a closing direction into a closing position within the valve housing (11) by a repelling force between the permanent magnets (24, 25) and is urgable into the closing position by the repelling force of the permanent magnets (24, 25) acting in the closing direction so that the closing position of the valve is the normal setting;b) an electromagnet (23), wherein the closure element (15) is movable in an opening direction into an opening position within the valve housing (11) by the electromagnet (23) having an opening force in the opening direction that overcomes the repelling force of the permanent magnets (24, 25), and wherein the repelling force that acts between the permanent magnets (24, 25) in the closing position of the closure element (15) is weaker than the opening force of the electromagnet (23) that acts upon the closure element (15); andc) a first permanent magnet (24) of the permanent magnets (24, 25) being arranged within the valve housing (11) embedded in a fixed support arranged in an inner space (20) of the housing (11) and a second permanent magnet (25) of the permanent magnets (24, 25) being arranged opposite to the first permanent magnet (24) and embedded in the closure element (15), such that the same magnetic poles of the permanent magnets (24, 25) are facing each other and the permanent magnets (24, 25) therefore repel each other,wherein the fixed support is held adjustably in the valve housing (11) by an adjusting screw (41) that protrudes from the valve housing (11), and wherein the adjusting screw (41) is connected to the fixed support by entry and press fitting and/or gluing of a free end of the adjusting screw (41) into an axial recess (42) of the fixed support. 2. A valve for fluid media having a valve housing (11), a discharge or valve opening (13), and a closure element (15) which is movable within the valve housing (11) and which, with an end-sided closing piece (16), when the valve is closed, is held in sealing contact with a valve seat (14), the improvement comprising: a) permanent magnets (24, 25), wherein the closure element (15) is movable in a closing direction into a closing position within the valve housing (11) by a repelling force between the permanent magnets (24, 25) and is urgable into the closing position by the repelling force of the permanent magnets (24, 25) acting in the closing direction so that the closing position of the valve is the normal setting;b) an electromagnet (23), wherein the closure element (15) is movable in an opening direction into an opening position within the valve housing (11) by the electromagnet (23) having an opening force in the opening direction that overcomes the repelling force of the permanent magnets (24, 25), and wherein the repelling force that acts between the permanent magnets (24, 25) in the closing position of the closure element (15) is weaker than the opening force of the electromagnet (23) that acts upon the closure element (15);c) a first permanent magnet (24) of the permanent magnets (24, 25) being arranged within the valve housing (11) embedded in a fixed support arranged in an inner space (20) of the housing (11) and a second permanent magnet (25) of the permanent magnets (24, 25) being arranged opposite to the first permanent magnet (24) and embedded in the closure element (15), such that the same magnetic poles of the permanent magnets (24, 25) are facing each other and the permanent magnets (24, 25) therefore repel each other; andd) cooling means arranged within the valve housing (11), the cooling means being upright heat pipes (38) and being arranged in the valve housing (11) such that a discharge opening of the cooling means is exposed,wherein the fixed support is held adjustably in the valve housing (11) by an adjusting screw (41) that protrudes from the valve housing (11), and wherein the adjusting screw (41) is connected to the fixed support. 3. The valve as claimed in claim 2, wherein the closure element (15) is an elongated cylinder having on an outer periphery longitudinally running channels (36) with web-shaped or rib-shaped projections (37) respectively located between a plurality of the channels (36), the projections (37) respectively located between the plurality of the channels (36) serving for the support of the closure element (15) on an inner face (35) of the valve housing (11). 4. The valve as claimed in claim 3, further comprising: e) the fixed support serving as a stop for the closure element (15) in the opening position;f) the first permanent magnet (24) having smaller transverse dimensions than the fixed support;g) the second permanent magnet (25) having smaller transverse dimensions than the closure element (15);h) spacers, wherein the permanent magnets (24, 25), when the closure element (15) is in a position withdrawn from the valve seat (14), are fixed at a distance apart from one another by the spacers for the purpose of protecting the permanent magnets (24, 25), the spacers being distributed along an end surface of the closure element (15) about a periphery of the closure element (15), and the spacers being arranged outside of the region of the second permanent magnet (25) of the closure element (15); andi) a distancing piece (26) arranged on the closure element (15), the distancing piece (26) comprising projections and interruptions, wherein the spacers are formed by the projections comprising the distancing piece, which delimit the interruptions on the distancing piece (26) when arranged on the closure element (15), and wherein the interruptions are radially directed apertures (27) on the distancing piece (26), the interruptions serving for the throughflow of the fluid media. 5. The valve as claimed in claim 2, wherein the valve housing (11) has a rectangular or square cross section, and the heat pipes (38) are arranged respectively in the region of corners of the valve housing (11). 6. The valve as claimed in claim 5, wherein the heat pipes (38) are tubular and a free pipe section (39) of the heat pipes (38) projects from a top side of the valve housing (11), and further comprising transversely directed fins (40) fitted in the region of the pipe section (39) for dispersion of heat from the heat pipes (38). 7. The valve as claimed in claim 6, further comprising: e) the fixed support serving as a stop for the closure element (15) in the opening position;f) the first permanent magnet (24) having smaller transverse dimensions than the fixed support;g) the second permanent magnet (25) having smaller transverse dimensions than the closure element (15);h) spacers, wherein the permanent magnets (24, 25), when the closure element (15) is in a position withdrawn from the valve seat (14), are fixed at a distance apart from one another by the spacers for the purpose of protecting the permanent magnets (24, 25), the spacers being distributed along an end surface of the closure element (15) about a periphery of the closure element (15), and the spacers being arranged outside of the region of the second permanent magnet (25) of the closure element (15); andi) a distancing piece (26) arranged on the closure element (15), the distancing piece (26) comprising projections and interruptions, wherein the spacers are formed by the projections, which delimit the interruptions on the distancing piece (26) when arranged on the closure element (15), and wherein the interruptions are radially directed apertures (27) on the distancing piece (26), the interruptions serving for the throughflow of the fluid media. 8. The valve as claimed in claim 5, further comprising: e) the fixed support serving as a stop for the closure element (15) in the opening position;f) the first permanent magnet (24) having smaller transverse dimensions than the fixed support;g) the second permanent magnet (25) having smaller transverse dimensions than the closure element (15);h) spacers, wherein the permanent magnets (24, 25), when the closure element (15) is in a position withdrawn from the valve seat (14), are fixed at a distance apart from one another by the spacers for the purpose of protecting the permanent magnets (24, 25), the spacers being distributed along an end surface of the closure element (15) about a periphery of the closure element (15), and the spacers being arranged outside of the region of the second permanent magnet (25) of the closure element (15); andi) a distancing piece (26) arranged on the closure element (15), the distancing piece (26) comprising projections and interruptions, wherein the spacers are formed by the projections, which delimit the interruptions on the distancing piece (26) when arranged on the closure element (15), and wherein the interruptions are radially directed apertures (27) on the distancing piece (26), the interruptions serving for the throughflow of the fluid media. 9. The valve as claimed in claim 2, further comprising: e) the fixed support serving as a stop for the closure element (15) in the opening position;f) the first permanent magnet (24) having smaller transverse dimensions than the fixed support;g) the second permanent magnet (25) having smaller transverse dimensions than the closure element (15);h) spacers, wherein the permanent magnets (24, 25), when the closure element (15) is in a position withdrawn from the valve seat (14), are fixed at a distance apart from one another by the spacers for the purpose of protecting the permanent magnets (24, 25), the spacers being distributed along an end surface of the closure element (15) about a periphery of the closure element (15), and the spacers being arranged outside of the region of the second permanent magnet (25) of the closure element (15); andi) a distancing piece (26) arranged on the closure element (15), the distancing piece (26) comprising projections and interruptions, wherein the spacers are formed by the projections, which delimit the interruptions on the distancing piece (26) when arranged on the closure element (15), and wherein the interruptions are radially directed apertures (27) on the distancing piece (26), the interruptions serving for the throughflow of the fluid media. 10. A valve for fluid media having a valve housing (11), a discharge or valve opening (13), and a closure element (15) which is movable within the valve housing (11) and which, with an end-sided closing piece (16), when the valve is closed, is held in sealing contact with a valve seat (14), the improvement comprising: a) permanent magnets (24, 25), wherein the closure element (15) is movable in a closing direction into a closing position within the valve housing (11) by a repelling force between the permanent magnets (24, 25) and is urgable into the closing position by the repelling force of the permanent magnets (24, 25) acting in the closing direction so that the closing position of the valve is the normal setting;b) an electromagnet (23), wherein the closure element (15) is movable in an opening direction into an opening position within the valve housing (11) by the electromagnet (23) having an opening force in the opening direction that overcomes the repelling force of the permanent magnets (24, 25), and wherein the repelling force of the permanent magnets (24, 25) in the closing position of the closure element (15) is weaker than the opening force of the electromagnet (23) that acts upon the closure element (15);c) a first permanent magnet (24) of the permanent magnets (24, 25) being arranged within the valve housing (11) embedded in a fixed support arranged in an inner space (20) of the housing (11) and a second permanent magnet (25) of the permanent magnets (24, 25) being arranged opposite to the first permanent magnet (24) and embedded in the closure element (15), such that the same magnetic poles of the permanent magnets (24, 25) are facing each other and the permanent magnets (24, 25) therefore repel each other;d) the fixed support serving as a stop for the closure element (15) in the opening position;e) the first permanent magnet (24) having smaller transverse dimensions than the fixed support;f) the second permanent magnet (25) having smaller transverse dimensions than the closure element (15);g) spacers, wherein the permanent magnets (24, 25), when the closure element (15) is in a position withdrawn from the valve seat (14), are fixed at a distance apart from one another by the spacers for the purpose of protecting the permanent magnets (24, 25), the spacers being distributed along an end surface of the closure element (15) about a periphery of the closure element (15), and the spacers being arranged outside of the region of the second permanent magnet (25) of the closure element (15); andh) a distancing piece (26) arranged on the closure element (15), the distancing piece (26) comprising projections and interruptions, wherein the spacers are formed by the projections, which delimit the interruptions on the distancing piece (26) when arranged on the closure element (15), andwherein the interruptions are radially directed apertures (27) on the distancing piece (26), the interruptions serving for the throughflow of the fluid media,wherein the closure element (15) is an elongated cylinder having on an outer periphery longitudinally running channels (36) with web-shaped or rib-shaped projections (37) respectively located between a plurality of the channels (36), the projections (37) respectively located between the plurality of the channels (36) serving for the support of the closure element (15) on an inner face (35) of the valve housing (11), andwherein the fixed support is held adjustably in the valve housing (11) by an adjusting screw (41) that protrudes from the valve housing (11), and wherein the adjusting screw (41) is connected to the fixed support by entry and press fitting and/or gluing of a free end of the adjusting screw (41) into an axial recess (42) of the fixed support. 11. The valve as claimed in claim 10, further comprising cooling means arranged within the valve housing (11), the cooling means being upright heat pipes (38) and being arranged in the valve housing (11) such that a discharge opening of the cooling means is exposed. 12. The valve as claimed in claim 11, wherein the valve housing (11) has a rectangular or square cross section, and the heat pipes (38) are arranged respectively in the region of corners of the valve housing (11). 13. The valve as claimed in claim 12, wherein the heat pipes (38) are tubular and a free pipe section (39) of the heat pipes (38) projects from a top side of the valve housing (11), and further comprising transversely directed fins (40) fitted in the region of the pipe section (39) for dispersion of heat from the heat pipes (38). 14. A valve for fluid media having a valve housing (11), a discharge or valve opening (13), and a closure element (15) which is movable within the valve housing (11) and which, with an end-sided closing piece (16), when the valve is closed, is held in sealing contact with a valve seat (14), the improvement comprising: a) permanent magnets (24, 25), wherein the closure element (15) is movable in a closing direction into a closing position within the valve housing (11) by a repelling force between the permanent magnets (24, 25) and is urgable into the closing position by the repelling force of the permanent magnets (24, 25) acting in the closing direction so that the closing position of the valve is the normal setting;b) an electromagnet (23), wherein the closure element (15) is movable in an opening direction into an opening position within the valve housing (11) by the electromagnet (23) having an opening force in the opening direction that overcomes the repelling force of the permanent magnets (24, 25), and wherein the repelling force of the permanent magnets (24, 25) in the closing position of the closure element (15) is weaker than the opening force of the electromagnet (23) that acts upon the closure element (15);c) a first permanent magnet (24) of the permanent magnets (24, 25) being arranged within the valve housing (11) embedded in a fixed support arranged in an inner space (20) of the housing (11) and a second permanent magnet (25) of the permanent magnets (24, 25) being arranged opposite to the first permanent magnet (24) and embedded in the closure element (15), such that the same magnetic poles of the permanent magnets (24, 25) are facing each other and the permanent magnets (24, 25) therefore repel each other;d) the fixed support serving as a stop for the closure element (15) in the opening position;e) the first permanent magnet (24) having smaller transverse dimensions than the fixed support;f) the second permanent magnet (25) having smaller transverse dimensions than the closure element (15);g) spacers, wherein the permanent magnets (24, 25), when the closure element (15) is in a position withdrawn from the valve seat (14), are fixed at a distance apart from one another by the spacers for the purpose of protecting the permanent magnets (24, 25), the spacers being distributed along an end surface of the closure element (15) about a periphery of the closure element (15), and the spacers being arranged outside of the region of the second permanent magnet (25) of the closure element (15); andh) a distancing piece (26) arranged on the closure element (15), the distancing piece (26) comprising projections and interruptions, wherein the spacers are formed by the projections, which delimit the interruptions on the distancing piece (26) when arranged on the closure element (15), and wherein the interruptions are radially directed apertures (27) on the distancing piece (26), the interruptions serving for the throughflow of the fluid media,wherein the fixed support is held adjustably in the valve housing (11) by an adjusting screw (41) that protrudes from the valve housing (11), and wherein the adjusting screw (41) is connected to the fixed support by entry and press fitting and/or gluing of a free end of the adjusting screw (41) into an axial recess (42) of the fixed support. 15. The valve as claimed in claim 14, further comprising cooling means arranged within the valve housing (11), the cooling means being upright heat pipes (38) and being arranged in the valve housing (11) such that a discharge opening of the cooling means is exposed. 16. The valve as claimed in claim 15, wherein the valve housing (11) has a rectangular or square cross section, and the heat pipes (38) are arranged respectively in the region of corners of the valve housing (11). 17. The valve as claimed in claim 16, wherein the heat pipes (38) are tubular and a free pipe section (39) of the heat pipes (38) projects from a top side of the valve housing (11), and further comprising transversely directed fins (40) fitted in the region of the pipe section (39) for dispersion of heat from the heat pipes (38).