EP1357298A2 - Actuation valve for a double-acting pneumatic cylinder and use of such a valve for a pneumatic-cylinder actuated creel - Google Patents

Actuation valve for a double-acting pneumatic cylinder and use of such a valve for a pneumatic-cylinder actuated creel Download PDF

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Publication number
EP1357298A2
EP1357298A2 EP03008338A EP03008338A EP1357298A2 EP 1357298 A2 EP1357298 A2 EP 1357298A2 EP 03008338 A EP03008338 A EP 03008338A EP 03008338 A EP03008338 A EP 03008338A EP 1357298 A2 EP1357298 A2 EP 1357298A2
Authority
EP
European Patent Office
Prior art keywords
valve
compressed air
chamber
valves
pneumatic cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03008338A
Other languages
German (de)
French (fr)
Other versions
EP1357298B1 (en
EP1357298A3 (en
Inventor
Ralf Lohmann
Jörg Zischewski
Georg Heinen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Volkmann GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkmann GmbH and Co KG filed Critical Volkmann GmbH and Co KG
Publication of EP1357298A2 publication Critical patent/EP1357298A2/en
Publication of EP1357298A3 publication Critical patent/EP1357298A3/en
Application granted granted Critical
Publication of EP1357298B1 publication Critical patent/EP1357298B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/02—Methods or apparatus in which packages do not rotate
    • B65H49/04—Package-supporting devices
    • B65H49/14—Package-supporting devices for several operative packages
    • B65H49/16—Stands or frameworks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/3051—Cross-check valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • F15B2211/3057—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having two valves, one for each port of a double-acting output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/353—Flow control by regulating means in return line, i.e. meter-out control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7107—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being mechanically linked

Definitions

  • the invention relates to an actuating valve according to the preamble of the claim 1.
  • Such an actuating valve is required that after the respective actuated switching valve of the pneumatic cylinder or its piston on both sides remains pressurized so that when the previously operated valve is released no further venting or pressure relief of both pressure chambers takes place, the pneumatic cylinder is held in place, d. i.e., a two-sided effective pneumatic cylinder should preferably by means of manually operated switching valves moved to its respective end positions and immediately when the actuation ceases can be stopped in its feed motion.
  • This basic task is carried out e.g. B. by a conventional cylinder control a 5/3-way slide valve that can be controlled by means of two switching valves with a downstream one Exhaust air throttling solved. 3/2-way slide valves are generally used as switching valves used. This leads in particular through the use a 5/3-way slide valve due to the considerable number of required Lip seals for sealing problems between the individual valve channels to problems.
  • the invention has for its object to provide an actuating valve which does not have the disadvantages, in particular through the use of a 5/3-way slide valve are required.
  • an actuating valve according to the invention Claim 1 or claim 3 proposed.
  • a central idea of the invention is in it, instead of the 5/3-way slide valve previously used, two 3/2-way valves to be used, which considerably reduces the sealing problems become.
  • the actuating valve according to the invention is preferred for a creel for textile machines according to one or more of the claims 11-20 used.
  • Figure 2 shows a double-acting pneumatic cylinder 8, in the opposite Compressed air connecting lines connected to an actuating valve 23 Merge onto L6, R6.
  • An attached to the piston rod 8.1 Piston (not shown) can be connected through the compressed air connection line L6 or R6 are pressurized with compressed air while the opposite cylinder or pressure chamber is vented via the other line R6 or L6.
  • a pivot bearing eye 24 is attached to the Pneumatic cylinder 8.
  • Another one Swivel bearing eye 25 is attached to the piston rod 8.1 around the pneumatic cylinder to be articulated on two machine parts that are movable relative to each other.
  • Figure 1a shows the actuating valve 23 in the rest position
  • Figure 1b shows one Operating position in which the piston rod 8.1 in the direction of arrow f1 in the Cylinder 8 is retracted.
  • FIG. 1a are to a compressed air source P by means of connecting lines L2, R2 two switching valves in the form of, for example, manually operated 3/2-way valves L1, R1 connected.
  • Line branches connect to the switching valves L1, R1 L3, R3 on, which contain check valves L4, R4 and two 3/2-way valves L5, R5 lead via lines L6, R6 to the pressure chambers 8.3, 8.4 of the pneumatic cylinder 8 are connected or can be connected.
  • the same The purpose is to adjust the 3/2-way valve L5 against the force of the Return spring R8 the control line R7.
  • the switching valves L1, R1 as well as the check valves L4, R4 and the valves L5, R5 are preferably seat valves that have valve bodies equipped with sealing rings, which act against spring force are movable in valve chambers, the corresponding valve seats for the sealing rings to have.
  • the actuating valve according to the invention thus combines schematically four separate 3/2-way valves and two check valves, preferably as Seat valves are formed and linked together so that at z.
  • Actuating valve 23 shown is characterized in that the of Figures 1a and 1b described valve or control elements to save space are housed in a compact valve block.
  • this valve block consists of a lower part 25 and a Upper part 26. A guided through the upper part 26 and connectable to a compressed air source P. Channel 27 opens into a distribution chamber 28.
  • the lower part 25 are two valve bodies 31, 31 'mounted or guided against by means of buttons L9, R9 the force of return springs 33, 33 'can be inserted into the distribution chamber 28 are.
  • the valve body 31 is formed by means of a valve stem 31.1 Annular gap in a bore 25.1 of the valve block lower part 25 mounted in such a way that the section of the bore 25.1 located above the valve stem 31.1 is open to the environment, as shown in Figure 3 for the button L9, see guide shaft 31.1 'and bore 25.1'.
  • a bore section 25.4 and a valve chamber are connected to the bore 25.1 25.2, in which a push-button supported on both sides when the button R9 is pressed Sealing ring 31.2 of the valve body 31 is sealingly guided.
  • the diameter of the bore section 25.4 is larger than the diameter of the valve chamber 25.2 such that the sealing ring in the bore section when the switching valve is not actuated 25.4 is housed that laterally on this sealing ring 31.2 made a connection between the channel 35 and the environment is.
  • the valve chamber 25.2 opens into the forming a valve seat 25.3 Distributor chamber 28.
  • the valve chamber 25.2 closes above the sealing ring 31.2 a channel 35 on the side.
  • a sealing ring 31.4 of the valve body 31 is in the rest position by the spring 33 pressed against the valve seat 25.3, as in Figure 3 for the valve body 31 'is shown.
  • a stepped bore which is a double valve unit consisting of a first, lower valve body 36 and a second, upper valve body 38.
  • This step hole has a guide section 39 adjoining the channel 35 and adjoining it a valve chamber 41 connects to form a valve seat 40.
  • Valve chamber 41 closes a valve chamber via a further valve seat 42 43 to which a valve chamber 45 is connected via a valve seat 44 is, in which a ventilation channel 46 opens laterally.
  • the valve body 36 has a valve stem guided in the guide bore 39 36.1, which has a plurality of axial slots 36.2 distributed over its circumference.
  • a sealing ring 36.3 At the On top of the valve stem 36.1 is a sealing ring 36.3, which is in the rest position supported by that between the lower and upper valve bodies 36, 38 Return spring 36.4 is pressed against the valve seat 40.
  • the valve body 38 has a valve stem guided in the valve chamber 41 38.1, which is essentially a hollow cylinder with side wall openings 38.2 is formed and with its interior with the valve chamber 41 in connection can stand.
  • This valve body 38 carries a first, lower sealing ring 38.3 to interact with the valve seat 42 and a second, upper Sealing ring 38.4 for interaction with the valve seat 44.
  • the valve body 38 is also guided with a seal in the valve chamber 45 Provide piston 38.5.
  • the actuating valve contains, in addition to that in connection with the valve bodies 31, 36 and 38 described a second valve unit, constructed symmetrically thereto Valve unit, the individual parts of which are shown in FIG. 3 on the left and the same reference numerals like the valve unit shown on the right in Figure 3, whereby for this valve unit shown on the left has a superscript index line is added.
  • the two valve units correspond to the control lines L7, R7 of the figures 1a and 1b by means of control channels 47 and 35 '35' 47 'linked together.
  • valve unit shown on the right in FIG actuated.
  • the sealing ring 31.4 of the valve body 31 of lifted the valve seat 25.3 facing the distribution chamber 28, so that Compressed air flows into the channel 35 and the guide bore 39.
  • This valve chamber 43 also has a lateral opening 43.1 a connection channel 50 in connection to which the leading to the pressure chamber 8.4 Compressed air connection line R6 is connected so that the compressed air in this pressure chamber 8.4 can flow.
  • the lower valve body 36 After release of the button L9, the lower valve body 36 is released by the return spring 36.4 pressed down so that the sealing ring 36.3 against the valve seat 40 is pressed.
  • valve body 36 of the valve unit shown on the right To the one hand the valve body 36 of the valve unit shown on the right and thus to be able to adjust the sealing ring 36.3 against the valve seat 30 and on the other hand the valve body 38 'of the valve unit shown on the left and so that the valve seal 38.4 'move against the valve seat 44'
  • the textile machine 1 which is only indicated schematically in FIG. 7, is concerned for example around a cable spindles on both sides in the machine longitudinal direction equipped cabling machine.
  • this is the left side of the machine assigned coil gate 2 is shown in its upper operating position.
  • the the creel 2 assigned to the right machine side is in its lower loading or mounting position shown.
  • each creel is 2 designed as a double coil creel and equipped with four supply coils Sp or loaded, so that two adjacent cabling spindles of a single Coil creel can be operated.
  • the supply spools Sp are around so-called single supply spools for the outer thread of the cabling process.
  • each creel 2 is on the top of the cabling machine 1 a carrier 3 running in the longitudinal direction of the machine by means of a holder 4 attached.
  • the fixed link of a four-bar bracket 4 two further, opposing links 5 and 6 are articulated, on their Ends, opposite to the bracket 4, the fourth four-bar link 7 articulated is.
  • the fixed four-bar link Bracket 4 consisting of two frame parts 4.1 which are located opposite one another at a distance between which an upper axis 4.2 and a lower axis 4.3 are mounted.
  • the Four-bar link 7 is box-shaped with two opposite side walls 7.1 formed by an end wall 7.4. connected with each other are and between which an upper axis 7.2 and a lower, shown in dashed lines Axis 7.3 are stored.
  • the four-bar link 5 can be pivoted on the two upper axes 4.2 and 7.2 stored.
  • the four-bar link 6 mounted on the lower axes 4.3 or 7.3 the shape of a box profile for reasons of stability.
  • Gas spring 9 can be pivoted on the axes 4.3 and 7.2 (see FIG. 9) stored.
  • the gas pressure spring 9 by definition consists of a cylinder in the a piston rod 9.1 with possibly attached pistons for biasing the existing gas volume is retractable in the closed cylinder chamber.
  • Each pneumatic cylinder 8 is preferably operated by an actuating valve driven type described.
  • Each pneumatic cylinder 8 can be pressurized with compressed air on both sides Pneumatic cylinder designed and contains two by a piston from each other separate compressed air chambers, which are alternately pressurized with compressed air can.
  • FIG. 8 there is a frame on the end wall 7.4 forming a mounting plate 11 attached, the two on each side receiving members 12 for supply spools Sp wears.
  • An actuating valve is provided on the front of each central web 11 Via compressed air lines, not shown, on the one hand to a compressed air source and on the other hand connected to the two pressure chambers of the pneumatic cylinder 8 is.
  • the Compressed air cylinder 8 is pressurized with compressed air such that its piston rod 8.1 (see FIG. 7) with the piston attached to it moves into the cylinder chamber.
  • the gas pressure spring 9 at the same time by retracting the piston rod 9.1 biased.

Abstract

The operating valve for a double acting pneumatic cylinder (8) with working chambers (8.3,8.4) uses a 3/2 way valve as a switching valve (L1). The non-operational switching valves of the 3/2 valve (L5) take the compressed air through-flow position when the switching valve is in the air vent position for one branch (L3).

Description

Die Erfindung betrifft ein Betätigungsventil gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an actuating valve according to the preamble of the claim 1.

Von einem derartigen Betätigungsventil wird verlangt, daß nach Freigabe des jeweils betätigten Schaltventils der Pneumatikzylinder bzw. dessen Kolben beidseitig so druckluftbeaufschlagt bleibt, daß bei Freigabe des zuvor betätigten Ventils keine weitere Entlüftung bzw. Druckentlastung beider Druckkammern erfolgt, sondern eine Selbsthaltung des Pneumatikzylinders bewirkt ist, d. h., ein zweiseitig wirksamer Pneumatikzylinder soll mittels vorzugsweise handbetätigter Schaltventile in seine jeweiligen Endlagen bewegt und bei Wegfall der Betätigung unmittelbar in seine Vorschubbewegung angehalten werden können.Such an actuating valve is required that after the respective actuated switching valve of the pneumatic cylinder or its piston on both sides remains pressurized so that when the previously operated valve is released no further venting or pressure relief of both pressure chambers takes place, the pneumatic cylinder is held in place, d. i.e., a two-sided effective pneumatic cylinder should preferably by means of manually operated switching valves moved to its respective end positions and immediately when the actuation ceases can be stopped in its feed motion.

Diese Grundaufgabe wird z. B. durch eine konventionelle Zylindersteuerung über ein mittels zwei Schaltventilen ansteuerbaren 5/3-Wege-Schieberventil mit nachgeschalteter Abluftdrosselung gelöst. Als Schaltventile werden in der Regel 3/2-Wege-Schieberventile verwendet. Dies führt insbesondere durch die Verwendung eines 5/3-Wege-Schieberventils aufgrund der beträchtlichen Anzahl der erforderlichen Lippendichtungen zu Abdichtungsproblemen zwischen den einzelnen Ventilkanälen zu Problemen.This basic task is carried out e.g. B. by a conventional cylinder control a 5/3-way slide valve that can be controlled by means of two switching valves with a downstream one Exhaust air throttling solved. 3/2-way slide valves are generally used as switching valves used. This leads in particular through the use a 5/3-way slide valve due to the considerable number of required Lip seals for sealing problems between the individual valve channels to problems.

Der Erfindung liegt die Aufgabe zugrunde, ein Betätigungsventil zu schaffen, welches nicht die Nachteile aufweist, die insbesondere durch die Verwendung eines 5/3-Wege-Schieberventils bedingt sind.The invention has for its object to provide an actuating valve which does not have the disadvantages, in particular through the use of a 5/3-way slide valve are required.

Zur Lösung dieser Aufgabe wird erfindungsgemäß ein Betätigungsventil gemäß Anspruch 1 bzw. Anspruch 3 vorgeschlagen. Ein Kerngedanke der Erfindung besteht darin, statt des bisher verwendeten 5/3-Wege-Schieberventils zwei 3/2-Wegeventile zu verwenden, wodurch die Abdichtungsprobleme beträchtlich reduziert werden.To achieve this object, an actuating valve according to the invention Claim 1 or claim 3 proposed. A central idea of the invention is in it, instead of the 5/3-way slide valve previously used, two 3/2-way valves to be used, which considerably reduces the sealing problems become.

Gemäß weiterer Erfindung wird vorgeschlagen, insgesamt für sämtliche Ventileinheiten auf Schieberventile zu verzichten und statt dessen sog. Sitzventile zu verwenden, wie es in den Ansprüchen 2 und 4 zum Ausdruck gebracht ist. Ein Betätigungsventil gemäß dem Ansprüchen 3 bis 10 kennzeichnet sich insbesondere durch seine kompakte und damit die Bedienung erleichternde Konstruktion aus.According to a further invention, it is proposed in total for all valve units to dispense with slide valves and to use so-called seat valves instead, as expressed in claims 2 and 4. An actuating valve according to claims 3 to 10 is particularly characterized due to its compact and thus easy operation.

Aus Gründen der Vereinfachung ist in den Ansprüchen 4 bis 10 hinsichtlich der Bezugszeichen zum Teil nur Bezug genommen auf das eine, beispielsweise in Figur 3 rechts dargestellte Ventilsystem, da der Aufbau des in Figur 3 links dargestellten Ventilsystems identisch mit dem rechts dargestellten Ventilsystem ist. For the sake of simplification, claims 4 to 10 regarding the In some cases, reference numerals only refer to one, for example in FIG 3 valve system shown on the right, since the structure of that shown in Figure 3 on the left Valve system is identical to the valve system shown on the right.

Gemäß weiterer Erfindung wird das erfindungsgemäße Betätigungsventil bevorzugt für ein Spulengatter für Textilmaschinen gemäß einem oder mehreren der Patentansprüche 11 - 20 verwendet.According to a further invention, the actuating valve according to the invention is preferred for a creel for textile machines according to one or more of the claims 11-20 used.

Die Erfindung wird im folgenden anhand der Zeichnung näher beschrieben:

  • Figur 1a zeigt ein Prinzipschaltbild des Betätigungsventils in der Ruhestellung;
  • Figur 1b zeigt das Schaltbild in einer der beiden Betriebspositionen;
  • Figur 2 zeigt eine Seitenansicht des an einen zweiseitig wirkenden Pneumatikzylinder angeschlossenen Betätigungsventils;
  • Figur 3 zeigt eine Schnittansicht des Betätigungsventils;
  • Figur 4 zeigt eine Schnittansicht gemäß der Pfeile IV-IV in Figur 3;
  • Figur 5 zeigt in vergrößerter Darstellung eine der beiden Ventileinheiten des erfindungsgemäßen Betätigungsventils.
  • Figur 6a zeigt in vergrößerter Darstellung einen Teil des Ventilgehäuses im Schnitt;
  • Figur 6b zeigt zwei der Ventilkörper außerhalb des Ventilgehäuses.
  • Figur 7 zeigt in schematischer Darstellung eine Seitenansicht einer in Maschinenlängsrichtung beidseitig mit Arbeitsstellen versehenen Textilmaschine, beispielsweise Kabliermaschine, an deren Oberseite die jeweils gegenüberliegenden Maschinenseiten bedienende Spulengatter verschwenkbar gelagert sind;
  • Figur 8 zeigt eine Ansicht von zwei sich gegenüberliegenden Spulengattern in der unteren Beladeposition gemäß einer ersten Ausführungsform der Erfindung;
  • Figur 9 zeigt eine gegenüber Figur 8 abgewandelte Ausführungsform.
    • The invention is described in more detail below with reference to the drawing:
  • Figure 1a shows a schematic diagram of the actuating valve in the rest position;
  • Figure 1b shows the circuit diagram in one of the two operating positions;
  • FIG. 2 shows a side view of the actuating valve connected to a double-acting pneumatic cylinder;
  • Figure 3 shows a sectional view of the actuating valve;
  • Figure 4 shows a sectional view according to the arrows IV-IV in Figure 3;
  • Figure 5 shows an enlarged view of one of the two valve units of the actuating valve according to the invention.
  • Figure 6a shows an enlarged view of part of the valve housing in section;
  • Figure 6b shows two of the valve bodies outside the valve housing.
  • FIG. 7 shows a schematic representation of a side view of a textile machine, for example a cabling machine, provided with work stations on both sides in the machine longitudinal direction, on the top of which the respective opposite machine sides serving creel are pivotally mounted;
  • FIG. 8 shows a view of two opposing coil gates in the lower loading position according to a first embodiment of the invention;
  • FIG. 9 shows an embodiment modified compared to FIG. 8.

    • Figur 2 zeigt einen zweiseitig wirkenden Pneumatikzylinder 8, in den an entgegengesetzten Enden an ein Betätigungsventil 23 angeschlossene Druckluft-Anschlußleitungen L6, R6 einmünden. Ein an der Kolbenstange 8.1 angebrachter (nicht dargestellter) Kolben kann durch die Druckluft-Anschlußleitung L6 oder R6 mit Druckluft beaufschlagt werden, während die gegenüberliegende Zylinder- bzw. Druckkammer über die andere Leitung R6 bzw. L6 entlüftet wird. An dem Pneumatikzylinder 8 ist ein Schwenklagerauge 24 angebracht. Ein weiteres Schwenklagerauge 25 ist an der Kolbenstange 8.1 angebracht, um den Pneumatikzylinder an zwei relativ zueinander beweglichen Maschinenteilen anzulenken.Figure 2 shows a double-acting pneumatic cylinder 8, in the opposite Compressed air connecting lines connected to an actuating valve 23 Merge onto L6, R6. An attached to the piston rod 8.1 Piston (not shown) can be connected through the compressed air connection line L6 or R6 are pressurized with compressed air while the opposite cylinder or pressure chamber is vented via the other line R6 or L6. To the Pneumatic cylinder 8, a pivot bearing eye 24 is attached. Another one Swivel bearing eye 25 is attached to the piston rod 8.1 around the pneumatic cylinder to be articulated on two machine parts that are movable relative to each other.

    Figur 1a zeigt das Betätigungsventil 23 in der Ruhestellung; Figur 1b zeigt eine Betriebsstellung, bei der die Kolbenstange 8.1 in Richtung des Pfeiles f1 in den Zylinder 8 eingefahren wird.Figure 1a shows the actuating valve 23 in the rest position; Figure 1b shows one Operating position in which the piston rod 8.1 in the direction of arrow f1 in the Cylinder 8 is retracted.

    Gemäß Figur 1a sind an eine Druckluftquelle P mittels Anschlußleitungen L2, R2 zwei Schaltventile in Form von zum Beispiel von Hand betätigbaren 3/2-Wegeventilen L1, R1 angeschlossen. An die Schaltventile L1, R1 schließen Leitungszweige L3, R3 an, die Rückschlagventile L4, R4 enthalten und zu zwei 3/2-Wegeventilen L5, R5 führen, die über Leitungen L6, R6 an die Druckkammern 8.3, 8.4 des Pneumatikzylinders 8 angeschlossen bzw. anschließbar sind. Von dem Leitungszweig L3 zweigt zwischen dem Schaltventil L1 und dem Rückschlagventil L4 eine Steuerleitung L7 ab, die zu dem 3/2-Wegeventil R5 führt, um bei Beaufschlagung dieser Steuerleitung L7 mit Druckluft das 3/2-Wegeventil R5 entgegen der Kraft der Feder R8 in die Entlüftungsposition zu verstellen. Dem gleichen Zweck dient zum Verstellen des 3/2-Wegeventils L5 entgegen der Kraft der Rückstellfeder R8 die Steuerleitung R7. Die Schaltventile L1, R1 sowie die Rückschlagventile L4, R4 und die Ventile L5, R5 sind vorzugsweise Sitzventile, die mit Dichtungsringen bestückte Ventilkörper aufweisen, welche gegen Federkraft in Ventilkammern verschiebbar sind, die entsprechende Ventilsitze für die Dichtungsringe haben.According to Figure 1a are to a compressed air source P by means of connecting lines L2, R2 two switching valves in the form of, for example, manually operated 3/2-way valves L1, R1 connected. Line branches connect to the switching valves L1, R1 L3, R3 on, which contain check valves L4, R4 and two 3/2-way valves L5, R5 lead via lines L6, R6 to the pressure chambers 8.3, 8.4 of the pneumatic cylinder 8 are connected or can be connected. From the line branch L3 branches between the switching valve L1 and the check valve L4 from a control line L7, which leads to the 3/2-way valve R5 to act upon this control line L7 with compressed air, the 3/2-way valve R5 the force of the spring R8 in the venting position. The same The purpose is to adjust the 3/2-way valve L5 against the force of the Return spring R8 the control line R7. The switching valves L1, R1 as well as the check valves L4, R4 and the valves L5, R5 are preferably seat valves that have valve bodies equipped with sealing rings, which act against spring force are movable in valve chambers, the corresponding valve seats for the sealing rings to have.

    Bei Betätigung des Schaltventils L1 mittels des Betätigungselementes bzw. Tasters L9 in Richtung des Pfeiles f2 wird die Verbindung zwischen der Leitung L2 und dem Leitungszweig L3 hergestellt, wodurch das Rückschlagventil L4 geöffnet wird und Druckluft durch die Leitung L6 in den Druckraum 8.3 einströmt. Gleichzeitig wird über die von dem Leitungszweig L3 abzweigende Steuerleitung L7 das 3/2-Wegeventil R5 in Richtung des Pfeils f3 in die Entlüftungsposition verstellt, in der der Druckraum 8.4 über die Leitung R6 und eine Abluftdrossel R10 entlüftet wird. When switching valve L1 is actuated using the actuating element or button L9 in the direction of arrow f2 becomes the connection between line L2 and the line branch L3, whereby the check valve L4 opens and compressed air flows through line L6 into pressure chamber 8.3. simultaneously the control line L7 branching off from the line branch L3 3/2-way valve R5 adjusted in the direction of arrow f3 to the venting position, in which the pressure chamber 8.4 via line R6 and an exhaust throttle R10 is vented.

    Bei Freigabe des Tasters L9 wird das Schaltventil L1 von der Rückstellfeder L11 wieder in die in Figur 1a dargestellte Ruhe- und Entlüftungsposition zurückgestellt, wodurch die Steuerleitung L7 entlüftet und damit das 3/2-Wegeventil R5 unter dem Einfluß der Rückstellfeder R8 wieder in seine Ausgangsstellung zurückgestellt wird.When button L9 is released, the switching valve L1 is released by the return spring L11 returned to the resting and venting position shown in FIG. 1a, which vents the control line L7 and thus the 3/2-way valve R5 returned to its initial position under the influence of the return spring R8 becomes.

    Das erfindungsgemäße Betätigungsventil vereinigt somit schematisch betrachtet vier separate 3/2-Wegeventile sowie zwei Rückschlagventile, die vorzugsweise als Sitzventile ausgebildet und derart miteinander verknüpft sind, daß bei z. B. Handbetätigung eines der beiden Schaltventile L1, R1 Druckluft in eine der beiden Druckkammern des Pneumatikzylinders einströmt, während die andere Druckkammer definiert über eine Abluftdrossel entlüftet wird, so daß bei Freigabe des zuvor betätigten Schaltventils der Pneumatikzylinder beidseitig mit Druckluft beaufschlagt bleibt und damit eine Selbsthaltung des Pneumatikzylinders bzw. dessen Kolbens erzielt wird.The actuating valve according to the invention thus combines schematically four separate 3/2-way valves and two check valves, preferably as Seat valves are formed and linked together so that at z. B. Manual operation one of the two switching valves L1, R1 compressed air into one of the two Pressure chambers of the pneumatic cylinder flows in while the other pressure chamber Defined via an exhaust air throttle, so that when the previously actuated switching valve of the pneumatic cylinder acted on both sides with compressed air remains and thus a self-holding of the pneumatic cylinder or its Piston is achieved.

    Durch Betätigung des Schaltventils R1 mittels des Tasters L9 wird die Druckkammer 8.4 mit Druckluft beaufschlagt, während die Druckkammer 8.3 über die dem 3/2-Wegeventil L5 zugeordnete Drossel L10 entlüftet wird.By actuating the switching valve R1 using the button L9, the pressure chamber 8.4 pressurized with compressed air, while the pressure chamber 8.3 over the 3/2-way valve L5 associated throttle L10 is vented.

    Das in den Figuren 3, 4, 5, 6a und 6b in einer bevorzugten konstruktiven Ausführungsform dargestellte Betätigungsventil 23 zeichnet sich dadurch aus, daß die anhand der Figuren 1a und 1b beschriebenen Ventil- bzw. Steuerelemente raumsparend in einem kompakten Ventilblock untergebracht sind.3, 4, 5, 6a and 6b in a preferred constructive embodiment Actuating valve 23 shown is characterized in that the of Figures 1a and 1b described valve or control elements to save space are housed in a compact valve block.

    Dieser Ventilblock besteht gemäß Figur 3 aus einem Unterteil 25 sowie einem Oberteil 26. Ein durch das Oberteil 26 geführter und an eine Druckluftquelle P anschließbarer Kanal 27 mündet in eine Verteilerkammer 28. In dem Unterteil 25 sind zwei Ventilkörper 31, 31' gelagert bzw. geführt, die mittels Taster L9, R9 gegen die Kraft von Rückstellfedern 33, 33' in die Verteilerkammer 28 einschiebbar sind. According to FIG. 3, this valve block consists of a lower part 25 and a Upper part 26. A guided through the upper part 26 and connectable to a compressed air source P. Channel 27 opens into a distribution chamber 28. In the lower part 25 are two valve bodies 31, 31 'mounted or guided against by means of buttons L9, R9 the force of return springs 33, 33 'can be inserted into the distribution chamber 28 are.

    Der Ventilkörper 31 ist mittels eines Ventilschaftes 31.1 unter Bildung eines Ringspaltes in einer Bohrung 25.1 des Ventilblock-Unterteils 25 derart gelagert, daß der oberhalb des Ventilschaftes 31.1 befindliche Abschnitt der Bohrung 25.1 zur Umgebung hin offen ist, wie es in Figur 3 für den Taster L9 dargestellt ist, siehe Führungsschaft 31.1' und Bohrung 25.1'.The valve body 31 is formed by means of a valve stem 31.1 Annular gap in a bore 25.1 of the valve block lower part 25 mounted in such a way that the section of the bore 25.1 located above the valve stem 31.1 is open to the environment, as shown in Figure 3 for the button L9, see guide shaft 31.1 'and bore 25.1'.

    An die Bohrung 25.1 schließen sich ein Bohrungsabschnitt 25.4 und eine Ventilkammer 25.2 an, in der bei Betätigung des Tasters R9 ein beidseitig abgestützter Dichtungsring 31.2 des Ventilkörpers 31 abdichtend geführt ist. Der Durchmesser des Bohrungsabschnitts 25.4 ist größer als der Durchmesser der Ventilkammer 25.2 derart, daß der Dichtungsring bei nichtbetätigtem Schaltventil so in dem Bohrungsabschnitt 25.4 untergebracht ist, daß seitlich an diesem Dichtungsring 31.2 vorbei eine Verbindung zwischen dem Kanal 35 und der Umgebung hergestellt ist. Die Ventilkammer 25.2 mündet unter Bildung eines Ventilsitzes 25.3 in die Verteilerkammer 28. An die Ventilkammer 25.2 schließt oberhalb des Dichtungsrings 31.2 seitlich ein Kanal 35 an.A bore section 25.4 and a valve chamber are connected to the bore 25.1 25.2, in which a push-button supported on both sides when the button R9 is pressed Sealing ring 31.2 of the valve body 31 is sealingly guided. The diameter of the bore section 25.4 is larger than the diameter of the valve chamber 25.2 such that the sealing ring in the bore section when the switching valve is not actuated 25.4 is housed that laterally on this sealing ring 31.2 made a connection between the channel 35 and the environment is. The valve chamber 25.2 opens into the forming a valve seat 25.3 Distributor chamber 28. The valve chamber 25.2 closes above the sealing ring 31.2 a channel 35 on the side.

    Ein Dichtungsring 31.4 des Ventilkörpers 31 wird in der Ruheposition von der Feder 33 gegen den Ventilsitz 25.3 gedrückt, wie es in Figur 3 für den Ventilkörper 31' gezeigt ist.A sealing ring 31.4 of the valve body 31 is in the rest position by the spring 33 pressed against the valve seat 25.3, as in Figure 3 for the valve body 31 'is shown.

    An den Kanal 35 schließt sich gemäß den Figuren 4 und 6a eine Stufenbohrung an, die eine Doppel-Ventileinheit, bestehend aus einem ersten, unteren Ventilkörper 36 und einem zweiten, oberen Ventilkörper 38, aufnimmt. Diese Stufenbohrung hat einen an den Kanal 35 anschließenden Führungsabschnitt 39, an den sich unter Bildung eines Ventilsitzes 40 eine Ventilkammer 41 anschließt. An diese Ventilkammer 41 schließt sich über einen weiteren Ventilsitz 42 eine Ventilkammer 43 an, an die über einen Ventilsitz 44 eine Ventilkammer 45 angeschlossen ist, in die seitlich ein Entlüftungskanal 46 mündet.4 and 6a is followed by a stepped bore which is a double valve unit consisting of a first, lower valve body 36 and a second, upper valve body 38. This step hole has a guide section 39 adjoining the channel 35 and adjoining it a valve chamber 41 connects to form a valve seat 40. To this Valve chamber 41 closes a valve chamber via a further valve seat 42 43 to which a valve chamber 45 is connected via a valve seat 44 is, in which a ventilation channel 46 opens laterally.

    Der Ventilkörper 36 hat einen in der Führungsbohrung 39 geführten Ventilschaft 36.1, der über seinen Umfang verteilt mehrere Axialschlitze 36.2 aufweist. An der Oberseite des Ventilschaftes 36.1 befindet sich ein Dichtungsring 36.3, der in Ruhestellung von der zwischen den unteren und oberen Ventilkörpern 36, 38 abgestützten Rückstellfeder 36.4 gegen den Ventilsitz 40 gedrückt wird.The valve body 36 has a valve stem guided in the guide bore 39 36.1, which has a plurality of axial slots 36.2 distributed over its circumference. At the On top of the valve stem 36.1 is a sealing ring 36.3, which is in the rest position supported by that between the lower and upper valve bodies 36, 38 Return spring 36.4 is pressed against the valve seat 40.

    Der Ventilkörper 38 hat einen in der Ventilkammer 41 geführten Ventilschaft 38.1, der im wesentlichen als Hohlzylinder mit seitlichen Wandöffnungen 38.2 ausgebildet ist und mit seinem Innenraum mit der Ventilkammer 41 in Verbindung stehen kann. Dieser Ventilkörper 38 trägt einen ersten, unteren Dichtungsring 38.3 zum Zusammenwirken mit dem Ventilsitz 42 sowie einen zweiten, oberen Dichtungsring 38.4 zum Zusammenwirken mit dem Ventilsitz 44. Der Ventilkörper 38 ist weiterhin mit einem in der Ventilkammer 45 abdichtend geführten Kolben 38.5 versehen.The valve body 38 has a valve stem guided in the valve chamber 41 38.1, which is essentially a hollow cylinder with side wall openings 38.2 is formed and with its interior with the valve chamber 41 in connection can stand. This valve body 38 carries a first, lower sealing ring 38.3 to interact with the valve seat 42 and a second, upper Sealing ring 38.4 for interaction with the valve seat 44. The valve body 38 is also guided with a seal in the valve chamber 45 Provide piston 38.5.

    Das Betätigungsventil enthält neben der in Verbindung mit den Ventilkörpern 31, 36 und 38 beschriebenen Ventileinheit eine zweite, symmetrisch dazu aufgebaute Ventileinheit, deren Einzelteile in Figur 3 links dargestellt sind und gleiche Bezugsziffern wie die in Figur 3 rechts dargestellte Ventileinheit tragen, wobei für diese links dargestellte Ventileinheit den Bezugsziffern ein hochgestellter Index-Strich hinzugefügt ist.The actuating valve contains, in addition to that in connection with the valve bodies 31, 36 and 38 described a second valve unit, constructed symmetrically thereto Valve unit, the individual parts of which are shown in FIG. 3 on the left and the same reference numerals like the valve unit shown on the right in Figure 3, whereby for this valve unit shown on the left has a superscript index line is added.

    Die beiden Ventileinheiten sind entsprechend den Steuerleitungen L7, R7 der Figuren 1a und 1b durch an die Kanäle 35, 35' anschließende Steuerkanäle 47 bzw. 47' miteinander verknüpft. So hat gemäß den Figuren 3 und 4 der von dem Kanal 35 abzweigende Steuerkanal 47 einen quer durch das Ventilblock-Oberteil 26 verlaufenden Anschlußkanal 47.1, der mit seiner Mündungsöffnung 47.2 oberhalb des Ventilkörpers 38' in die Ventilkammer 45' mündet.The two valve units correspond to the control lines L7, R7 of the figures 1a and 1b by means of control channels 47 and 35 '35' 47 'linked together. Thus, according to FIGS. 3 and 4, that of the channel 35 branching control channel 47 a extending through the valve block upper part 26 Connection channel 47.1, with its mouth opening 47.2 above of the valve body 38 'opens into the valve chamber 45'.

    Durch Eindrücken des Tasters R9 wird die in Figur 3 rechts dargestellte Ventileinheit betätigt. Dadurch wird der Dichtungsring 31.4 des Ventilkörpers 31 von dem der Verteilerkammer 28 zugewandten Ventilsitz 25.3 abgehoben, so daß Druckluft in den Kanal 35 und die Führungsbohrung 39 einströmt. Dadurch wird der untere Ventilkörper 36 gegen die Kraft der Rückstellfeder 36.4 nach oben verschoben, und der Dichtungsring 36.3 wird von dem Ventilsitz 40 abgehoben, so daß Druckluft durch die Radialschlitze 36.2 in die Ventilkammer 41 und damit auch durch die Wandöffnungen 38.2 des Ventilschaftes 38.1 in die Ventilkammer 43 einströmt. Diese Ventilkammer 43 steht über eine seitliche Öffnung 43.1 mit einem Anschlußkanal 50 in Verbindung, an den die zur Druckkammer 8.4 führende Druckluftanschlußleitung R6 angeschlossen ist, so daß die Druckluft in diese Druckkammer 8.4 einströmen kann.By pressing the button R9, the valve unit shown on the right in FIG actuated. As a result, the sealing ring 31.4 of the valve body 31 of lifted the valve seat 25.3 facing the distribution chamber 28, so that Compressed air flows into the channel 35 and the guide bore 39. This will the lower valve body 36 is pushed upward against the force of the return spring 36.4, and the sealing ring 36.3 is lifted off the valve seat 40, so that compressed air through the radial slots 36.2 in the valve chamber 41 and thus also through the wall openings 38.2 of the valve stem 38.1 into the valve chamber 43 flows. This valve chamber 43 also has a lateral opening 43.1 a connection channel 50 in connection to which the leading to the pressure chamber 8.4 Compressed air connection line R6 is connected so that the compressed air in this pressure chamber 8.4 can flow.

    Um den Kolben 8.2 der Pneumatik-Zylindereinheit 8 verschieben zu können, ist es notwendig, daß die andere Druckkammer 8.3 entlüftet wird. Dieses erfolgt in der Weise, daß durch den Steuerkanal 47, den daran anschließenden Anschlußkanal 47.1 und die Mündungsöffnung 47.2 Druckluft in die Ventilkammer 45' oberhalb des Ventilkörpers 38' einströmt, der dadurch nach unten gedrückt wird, wodurch der Dichtungsring 38.4' von seinem Ventilsitz 44' weggerückt wird. Dadurch wird durch die Anschlußleitungen L6 und 50' eine Verbindung zwischen der Druckkammer 8.3 und dem unterhalb des Dichtungskolbens 38.5' befindlichen Abschnitt der Ventilkammer 45' hergestellt, so daß die Druckkammer 8.3 durch den an die Ventilkammer 45' anschließenden Entlüftungskanal 46' entlüftet wird.In order to be able to move the piston 8.2 of the pneumatic cylinder unit 8, it is necessary that the other pressure chamber 8.3 is vented. This takes place in the Way that through the control channel 47, the adjoining connection channel 47.1 and the mouth opening 47.2 compressed air into the valve chamber 45 'above of the valve body 38 'flows, which is thereby pressed down, whereby the sealing ring 38.4 'is moved away from its valve seat 44'. Thereby is through the connecting lines L6 and 50 'a connection between the Pressure chamber 8.3 and the one located below the sealing piston 38.5 ' Section of the valve chamber 45 ', so that the pressure chamber 8.3 through the venting duct 46 'adjoining the valve chamber 45' is vented.

    Um in der Druckkammer 8.3 einen plötzlichen Druckabfall zu verhindern, ist dem Entlüftungskanal 46' entsprechend der Drossel L10 der Figuren 1a und 1b eine (nicht dargestellte) Abluftdrossel zugeordnet. Gleiches gilt auch für den Entlüftungskanal 46.In order to prevent a sudden drop in pressure in the pressure chamber 8.3, this is the Vent channel 46 'corresponding to the throttle L10 of Figures 1a and 1b Exhaust throttle (not shown) assigned. The same applies to the ventilation duct 46th

    Nach Freigabe des Tasters L9 wird der untere Ventilkörper 36 von der Rückstellfeder 36.4 nach unten gedrückt, so daß der Dichtungsring 36.3 gegen den Ventilsitz 40 gedrückt wird.After release of the button L9, the lower valve body 36 is released by the return spring 36.4 pressed down so that the sealing ring 36.3 against the valve seat 40 is pressed.

    Da nach Freigabe des Tasters R9 die Druckluftzufuhr durch das Entlüftungskanalsystem 47, 47.1 sowie 47.2 in die Ventilkammer 45' oberhalb des Ventilkörpers 38' entfällt, wird dieser Ventilkörper 38' von der Rückstellfeder 36.4' wieder nach oben verschoben, so daß der Dichtungsring 38.4' gegen den Ventilsitz 44' gedrückt wird. As the button R9 is released, the compressed air supply through the ventilation duct system 47, 47.1 and 47.2 in the valve chamber 45 'above the valve body 38 'is omitted, this valve body 38' by the return spring 36.4 'again shifted upwards so that the sealing ring 38.4 'against the valve seat 44' is pressed.

    Damit wird die oben in Verbindung mit den Figuren 1a und 1b beschriebene automatische Selbsthaltung des Pneumatikzylinders 8 bewirkt.This makes the automatic described above in connection with FIGS. 1a and 1b Self-holding of the pneumatic cylinder 8 causes.

    Um einerseits den Ventilkörper 36 der rechts dargestellten Ventileinheit und damit der Dichtungsring 36.3 gegen den Ventilsitz 30 verstellen zu können und andererseits den Ventilkörper 38' der links dargestellten Ventileinheit nach oben und damit die Ventildichtung 38.4' zur Anlage gegen den Ventilsitz 44' verschieben zu können, ist es erforderlich, das in dem Kanalsystem 35, 47, 47.1 und 47.2 bestehende Druckluftpolster abzubauen. Zu diesem Zweck dient das oben in Verbindung mit dem sich in Ruhestellung befindlichen Taster L9 beschriebene Entlüftungssystem zwischen dem Kanal 35 und der Umgebung.To the one hand the valve body 36 of the valve unit shown on the right and thus to be able to adjust the sealing ring 36.3 against the valve seat 30 and on the other hand the valve body 38 'of the valve unit shown on the left and so that the valve seal 38.4 'move against the valve seat 44' To be able to, it is necessary to use the existing in the channel system 35, 47, 47.1 and 47.2 Remove compressed air cushion. This is in connection with the above with the ventilation system described in the rest position button L9 between channel 35 and the surrounding area.

    Bei der in Figur 7 nur schematisch angedeuteten Textilmaschine 1 handelt es sich beispielsweise um eine in Maschinenlängsrichtung beidseitig mit Kablierspindeln ausgerüstete Kabliermaschine. Gemäß Figur 7 ist das der linken Maschinenseite zugeordnete Spulengatter 2 in seiner oberen Betriebsstellung dargestellt ist. Das der rechten Maschinenseite zugeordnete Spulengatter 2 ist in seiner unteren Belade- bzw. Bestückungsposition dargestellt. Gemäß Figur 8 ist jedes Spulengatter 2 als Doppelspulengatter ausgebildet und mit vier Vorlagespulen Sp bestückt bzw. beladen, so daß jeweils zwei benachbarte Kablierspindeln von einem einzelnen Spulengatter bedient werden können. Bei den Vorlagespulen Sp handelt es sich um sog. Einfach-Vorlagespulen für den Außenfaden des Kablierprozesses.The textile machine 1, which is only indicated schematically in FIG. 7, is concerned for example around a cable spindles on both sides in the machine longitudinal direction equipped cabling machine. According to FIG. 7, this is the left side of the machine assigned coil gate 2 is shown in its upper operating position. The the creel 2 assigned to the right machine side is in its lower loading or mounting position shown. According to FIG. 8, each creel is 2 designed as a double coil creel and equipped with four supply coils Sp or loaded, so that two adjacent cabling spindles of a single Coil creel can be operated. The supply spools Sp are around so-called single supply spools for the outer thread of the cabling process.

    Jedes Spulengatter 2 ist gemäß Figur 7 an der Oberseite der Kabliermaschine 1 an einem in Maschinenlängsrichtung verlaufenden Träger 3 mittels einer Halterung 4 befestigt. An dieser das feststehende Glied eines Viergelenks bildenden Halterung 4 sind zwei weitere, sich gegenüberliegende Glieder 5 und 6 angelenkt, an deren Enden, gegenüberliegend zu der Halterung 4, das vierte Viergelenkglied 7 angelenkt ist.According to FIG. 7, each creel 2 is on the top of the cabling machine 1 a carrier 3 running in the longitudinal direction of the machine by means of a holder 4 attached. On this, the fixed link of a four-bar bracket 4, two further, opposing links 5 and 6 are articulated, on their Ends, opposite to the bracket 4, the fourth four-bar link 7 articulated is.

    Aus Stabilitätsgründen besteht die das feststehende Viergelenkglied bildende Halterung 4 aus zwei sich mit Abstand gegenüberliegenden Rahmenteilen 4.1, zwischen denen eine obere Achse 4.2 und eine untere Achse 4.3 gelagert sind. Das Viergelenkglied 7 ist kastenförmig mit zwei sich gegenüberliegenden Seitenwänden 7.1 ausgebildet, die durch eine Stirnwand 7.4. miteinander verbunden sind und zwischen denen eine obere Achse 7.2 und eine untere, gestrichelt dargestellte Achse 7.3 gelagert sind.For stability reasons, there is the fixed four-bar link Bracket 4 consisting of two frame parts 4.1 which are located opposite one another at a distance between which an upper axis 4.2 and a lower axis 4.3 are mounted. The Four-bar link 7 is box-shaped with two opposite side walls 7.1 formed by an end wall 7.4. connected with each other are and between which an upper axis 7.2 and a lower, shown in dashed lines Axis 7.3 are stored.

    Auf den beiden oberen Achsen 4.2 und 7.2 ist das Viergelenkglied 5 schwenkbar gelagert. Das auf den unteren Achsen 4.3 bzw. 7.3 gelagerte Viergelenkglied 6 hat aus Stabilitätsgründen die Form eines Kastenprofils.The four-bar link 5 can be pivoted on the two upper axes 4.2 and 7.2 stored. The four-bar link 6 mounted on the lower axes 4.3 or 7.3 the shape of a box profile for reasons of stability.

    Bei der Ausführungsform gemäß Figur 8 sind zwei nebeneinander liegende Pneumatikzylinder 8 sowie eine zwischen diesen beiden Pneumatikzylindern 8 befindliche Gasdruckfeder 9 auf den Achsen 4.3 und 7.2 (s. Figur 9) schwenkbar gelagert. Die Gasdruckfeder 9 besteht per Definition aus einem Zylinder, in den eine Kolbenstange 9.1 mit ggf. daran angebrachten Kolben zum Vorspannen des in der geschlossenen Zylinderkammer vorhandenen Gasvolumens einfahrbar ist.In the embodiment according to FIG. 8 there are two pneumatic cylinders lying next to one another 8 and one located between these two pneumatic cylinders 8 Gas spring 9 can be pivoted on the axes 4.3 and 7.2 (see FIG. 9) stored. The gas pressure spring 9 by definition consists of a cylinder in the a piston rod 9.1 with possibly attached pistons for biasing the existing gas volume is retractable in the closed cylinder chamber.

    Jeder Pneumatikzylinder 8 wird bevorzugt von einem Betätigungsventil der oben beschriebenen Art angesteuert.Each pneumatic cylinder 8 is preferably operated by an actuating valve driven type described.

    Gemäß Figur 9 ist neben der Gasdruckfeder 9 nur ein Pneumatikzylinder 8 auf den Achsen 4.3 und 7.2 verschwenkbar gelagert.According to FIG. 9, in addition to the gas pressure spring 9, only one pneumatic cylinder 8 is on the Axes 4.3 and 7.2 are pivoted.

    Jeder Pneumatikzylinder 8 ist als sog. zweiseitig mit Druckluft beaufschlagbarer Pneumatikzylinder ausgebildet und enthält zwei durch einen Kolben voneinander getrennte Druckluftkammern, die wechselweise mit Druckluft beaufschlagt werden können.Each pneumatic cylinder 8 can be pressurized with compressed air on both sides Pneumatic cylinder designed and contains two by a piston from each other separate compressed air chambers, which are alternately pressurized with compressed air can.

    An der eine Halterungsplatte bildenden Stirnwand 7.4 ist gemäß Figur 8 ein Gestell 11 befestigt, das beidseitig jeweils zwei Aufnahmeglieder 12 für Vorlagespulen Sp trägt.According to FIG. 8, there is a frame on the end wall 7.4 forming a mounting plate 11 attached, the two on each side receiving members 12 for supply spools Sp wears.

    An der Vorderseite jedes Mittelstegs 11 ist ein Betätigungsventil vorgesehen, das über nicht dargestellte Druckluftleitungen einerseits an eine Druckluftquelle und andererseits an die beiden Druckkammern des Pneumatikzylinders 8 angeschlossen ist.An actuating valve is provided on the front of each central web 11 Via compressed air lines, not shown, on the one hand to a compressed air source and on the other hand connected to the two pressure chambers of the pneumatic cylinder 8 is.

    Zum Herunterschwenken des Spulenhalters in die in Figur 7 dargestellte untere Position zum Bestücken des Spulengatters 2 mit neuen Vorlagespulen Sp wird der Druckluftzylinder 8 derart mit Druckluft beaufschlagt, daß seine Kolbenstange 8.1 (s. Figur 7) mit dem daran befestigten Kolben in die Zylinderkammer einfährt. Dabei wird gleichzeitig die Gasdruckfeder 9 durch Einfahren der Kolbenstange 9.1 vorgespannt.For swiveling the bobbin holder down into the lower one shown in FIG Position for loading the coil gate 2 with new supply spools Sp is the Compressed air cylinder 8 is pressurized with compressed air such that its piston rod 8.1 (see FIG. 7) with the piston attached to it moves into the cylinder chamber. there is the gas pressure spring 9 at the same time by retracting the piston rod 9.1 biased.

    Nach Beendigung des Belade- bzw. Bestückungsvorganges wird durch entsprechende Ventilbetätigung die Kolbenstange 8.1 wieder aus dem Zylinder ausgefahren, wodurch das Spulengatter 2, unterstützt durch die Gasdruckfeder 9, in seine obere Position verschwenkt wird. After the loading or loading process is completed by the appropriate Valve actuation, the piston rod 8.1 is moved out of the cylinder again, whereby the creel 2, supported by the gas pressure spring 9, in its upper position is pivoted.

    Bezugszeichenliste

    8
    Pneumatikzylinder
    8.1
    Kolbenstange
    8.2
    Kolben
    8.3
    Druckkammer
    8.4
    Druckkammer
    23
    Betätigungsventil
    25
    Unterteil
    25.1
    Führungsbohrung
    25.2
    Ventilkammerbohrung
    25.3
    Ventilsitz
    26
    Oberteil
    27
    Kanal (zur Druckluftquelle)
    28
    Verteilerkammer
    31, 31'
    Ventilkörper
    31.1
    Ventilschaft
    31.2 31.3
    Dichtungsring
    31.4
    Dichtungsring
    33,33'
    Rückstellfedern
    35
    Kanal
    36
    unterer Ventilkörper
    36.1
    Ventilschaft
    36.2
    Radialschlitze
    36.3
    Ventildichtung
    36.4
    Rückstellfeder
    38
    oberer Ventilkörper
    38.1
    Ventilschaft
    38.2
    Wandöffnungen
    38.3
    Ventildichtung
    38.4
    Ventilbohrung
    38.5
    Kolben
    39
    Führungsbohrung
    40
    Ventilsitz
    41
    erste Ventilkammer
    42
    Ventilsitz
    43
    Ventilkammer
    44
    Ventilsitz
    45
    Ventilkammer
    46
    Entlüftungskanal
    47, 47'
    Steuerkanäle
    47.1
    Anschlußkanal
    47.2
    Mündungsöffnung
    LIST OF REFERENCE NUMBERS
    8th
    pneumatic cylinder
    8.1
    piston rod
    8.2
    piston
    8.3
    pressure chamber
    8.4
    pressure chamber
    23
    actuation valve
    25
    lower part
    25.1
    guide bore
    25.2
    Valve chamber bore
    25.3
    valve seat
    26
    top
    27
    Duct (to compressed air source)
    28
    distribution chamber
    31, 31 '
    valve body
    31.1
    valve stem
    31.2 31.3
    sealing ring
    31.4
    sealing ring
    33.33 '
    Return springs
    35
    channel
    36
    lower valve body
    36.1
    valve stem
    36.2
    radial slots
    36.3
    valve seal
    36.4
    Return spring
    38
    upper valve body
    38.1
    valve stem
    38.2
    wall openings
    38.3
    valve seal
    38.4
    valve bore
    38.5
    piston
    39
    guide bore
    40
    valve seat
    41
    first valve chamber
    42
    valve seat
    43
    valve chamber
    44
    valve seat
    45
    valve chamber
    46
    vent channel
    47, 47 '
    control channels
    47.1
    connecting channel
    47.2
    mouth

    Claims (20)

    Betätigungsventil für einen Pneumatikzylinder (8), der zwei durch einen an einer Kolbenstange (8.1) angebrachten Kolben voneinander getrennte Druckkammern (8.3; 8.4) aufweist, welches Betätigungsventil zwei an eine Druckluftquelle (P) anschließbare 3/2-Wegeventile als Schaltventile (L1; R1) sowie ein zwischen diesen Schaltventilen und dem Pneumatikzylinder (8) angeschlossenes Ventilsystem enthält, durch das bei Betätigung eines der beiden Schaltventile jeweils die eine Druckkammer mit Druckluft beaufschlagt und die andere Druckkammer über eine Abluftdrossel druckentlastet wird, dadurch gekennzeichnet, daß das Ventilsystem zwei dem Pneumatikzylinder unmittelbar vorgeschaltete 3/2-Wegeventile (L5; R5) sowie zwei Rückschlagventile (L4; R4) aufweist, die jeweils einzeln in eines der Schaltventile (L1 bzw. R1) mit einem der beiden 3/2-Wegeventile (L5 bzw. R5) verbindenden Leitungszweigen (L3; R3) liegen, an die jeweils eine zu dem anderen der beiden 3/2-Wegeventile (R5 bzw. L5) führende Steuerleitung (L7 bzw. R7) angeschlossen sind, über die die beiden 3/2-Wegeventile (L5; R5) zwischen ihren Druckluftdurchlaßstellungen und ihren druckentlastenden Stellungen verstellbar sind derart, daß a) bei nichtbetätigten Schaltventilen (L1; R1) die 3/2-Wegeventile (L5; R5) ihre Druckluftdurchlaßstellungen einnehmen, während die Schaltventile eine die Leitungszweige (L3; R3) entlüftende Stellung einnehmen, während b) bei Betätigung jeweils eines der beiden Schaltventile dieses eine Druckluftdurchlaßstellung zu dem daran angeschlossenen Leitungszweig einnimmt. Actuating valve for a pneumatic cylinder (8), which has two pressure chambers (8.3; 8.4) separated from each other by a piston attached to a piston rod (8.1), which actuating valve has two 3/2-way valves that can be connected to a compressed air source (P) as switching valves (L1; R1) and a valve system connected between these switching valves and the pneumatic cylinder (8), by means of which when one of the two switching valves is actuated, one pressure chamber is pressurized with compressed air and the other pressure chamber is depressurized via an exhaust air throttle, characterized in that the valve system two Pneumatic cylinder immediately upstream 3/2-way valves (L5; R5) and two check valves (L4; R4), each individually in one of the switching valves (L1 or R1) with one of the two 3/2-way valves (L5 or R5 ) connecting line branches (L3; R3) for which one to the other of the two 3/2-way valves (R5 or L5) for Control cable (L7 or R7) are connected, via which the two 3/2-way valves (L5; R5) are adjustable between their compressed air passage positions and their pressure relief positions in such a way that a) in the case of non-actuated switching valves (L1; R1), the 3/2-way valves (L5; R5) assume their compressed air passage positions, while the switching valves assume a position which bleeds the line branches (L3; R3), while b) each time one of the two switching valves is actuated, this assumes a compressed air passage position to the line branch connected to it. Betätigungsventil nach Anspruch 1, dadurch gekennzeichnet, daß die Schaltventile (L1, R1) sowie die Rückschlagventile (L4, R4) und die Ventile (L5, R5) Sitzventile sind, die mit Dichtungsringen bestückte Ventilkörper aufweisen, welche gegen Federkraft in Ventilkammern verschiebbar sind, die entsprechende Ventilsitze für die Dichtungsringe haben. Actuating valve according to claim 1, characterized in that the switching valves (L1, R1) as well as the check valves (L4, R4) and the valves (L5, R5) are seat valves which have valve bodies fitted with sealing rings which can be displaced in valve chambers against spring force, have the appropriate valve seats for the sealing rings. Betätigungsventil mit zwei an einen zwei Druckkammern aufweisenden, zweiseitig wirksamen Pneumatikzylinder (8) anschließbaren Druckluft-Anschlußkanälen (50; 50') sowie zwei von außen betätigbaren Schaltventilen zum wechselweisen Anschließen jeweils eines der beiden Druckluft-Anschlußkanäle an eine Druckluftquelle P und zur gleichzeitigen, über eine Abluftdrossel gesteuerten Entlüftung des jeweiligen anderen Druckluft-Anschlußkanals, wobei jedem Druckluft-Anschlußkanal (50; 50') eine Ventileinheit vorgeschaltet ist, die jeweils zwei mit Dichtungsringen bestückte Ventilkörper (36, 36'; 38, 38') umfaßt, die koaxial zueinander in als Stufenbohrungen ausgebildeten Ventilkammern (41, 43, 45 bzw. 41', 43' 45') untergebracht sind und zwischen denen eine beide Ventilkörper (36, 36'; 38, 38') in ihre Schließstellungen beaufschlagende Rückstellfeder (33; 33') angebracht ist.Actuating valve with two, on one side having two pressure chambers effective pneumatic cylinder (8) connectable compressed air connection channels (50; 50 ') and two externally actuated switching valves for alternating Connect one of the two compressed air connection channels to a compressed air source P and for simultaneous ventilation controlled by an exhaust air throttle of the respective other compressed air connection channel, each compressed air connection channel (50; 50 ') upstream of a valve unit, each with two Sealing rings equipped valve body (36, 36 '; 38, 38') comprises the coaxial to each other in valve chambers (41, 43, 45 or 41 ', 43' 45 ') and between which one of the two valve bodies (36, 36 '; 38, 38 ') return spring (33; 33') acting in its closed positions is appropriate. Betätigungsventil nach Anspruch 3, dadurch gekennzeichnet, daß alle Ventile als Sitzventile ausgebildet sind und in einem gemeinsamen Ventilblock untergebracht und derart miteinander verknüpft sind, daß bei Betätigung eines der beiden Schaltventile eine der beiden Druckkammern des Pneumatikzylinders mit Druckluft beaufschlagbar ist, während die andere Druckkammer vorzugsweise über eine Abluftdrossel entlüftet wird, so daß bei Freigabe des zuvor betätigten Schaltventils der Pneumatikzylinder beidseitig mit Druckluft beaufschlagt bleibt und damit eine Selbsthaltung des Pneumatikzylinders bzw. dessen Kolbens erzielt ist.Actuating valve according to claim 3, characterized in that all valves are designed as seat valves and are housed in a common valve block and are linked to one another such that when one of the two switching valves is actuated, one of the two pressure chambers of the pneumatic cylinder can be pressurized with compressed air, while the other pressure chamber is preferably is vented via an exhaust air throttle so that when the previously actuated switching valve is released, the pneumatic cylinder remains pressurized on both sides and thus the pneumatic cylinder or its piston is held in place. Betätigungsventil nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Ventilblock (25, 26) eine für beide Schaltventile gemeinsame, an eine Druckluftquelle anschließbare Verteilerkammer 28 aufweist derart, daß bei Betätigung eines der beiden Schaltventile eine Verbindung zu dem diesem Schaltventil zugeordneten Druckluft-Anschlußkanal (50; 50') hergestellt wird.Actuating valve according to Claim 3 or 4, characterized in that the valve block (25, 26) has a distribution chamber 28 which is common to both switching valves and can be connected to a compressed air source in such a way that, when one of the two switching valves is actuated, a connection to the compressed air connection channel assigned to this switching valve (50; 50 ') is produced. Betätigungsventil nach Anspruch 5, dadurch gekennzeichnet, daß jedes Schaltventil eine unter Bildung eines Ventilsitzes (25.3) in die Verteilerkammer (28) mündende Ventilkammer (25.2) zur Aufnahme eines Ventilkörpers (31) aufweist, der gegen die Kraft einer Rückstellfeder (33) in die Verteilerkammer (28) einschiebbar ist und an seinem, in die Verteilerkammer (28) einschiebbaren Ende einen Dichtungsring (31.4) zum Zusammenwirken mit dem Ventilsitz (25.3) aufweist, und daß in die Ventilkammer (25.2) seitlich ein zu dem zugeordneten Druckluft-Anschlußkanal (50) führender Kanal (35) einmündet.Actuating valve according to claim 5, characterized in that each switching valve has a valve chamber (25.2) opening into the distribution chamber (28) to form a valve seat (25.3) for receiving a valve body (31) which acts against the force of a return spring (33) in the Distribution chamber (28) can be inserted and has at its end, which can be inserted into the distribution chamber (28), a sealing ring (31.4) for cooperation with the valve seat (25.3), and that into the valve chamber (25.2) laterally one to the associated compressed air connection channel ( 50) leading channel (35) opens out. Betätigungsventil nach Anspruch 6, dadurch gekennzeichnet, daß an die Ventilkammer (25.2) an dem nicht in die Verteilerkammer (28) einmündenden Ende ein Bohrungsabschnitt (25.4) anschließt, dessen Durchmesser größer ist als der Durchmesser der Ventilkammer (25.2), und daß der Ventilkörper (31) an seinem, diesem Bohrungsabschnitt (25.4) zugewandten Ende einen Dichtungsring (31.2) trägt, der bei Eindrücken des Ventilkörpers (31) in die Verteilerkammer (28) abdichtend in der Ventilkammer (25.2) geführt ist, während er bei nichtbetätigtem Schaltventil so in dem Bohrungsabschnitt (25.4) untergebracht ist, daß seitlich an diesem Dichtungsring (31.2) vorbei eine Verbindung zwischen dem Kanal (35) und der Umgebung hergestellt ist.Actuating valve according to Claim 6, characterized in that a bore section (25.4), the diameter of which is larger than the diameter of the valve chamber (25.2), adjoins the valve chamber (25.2) at the end which does not open into the distributor chamber (28), and that the valve body (31) at its end facing this bore section (25.4) carries a sealing ring (31.2) which, when the valve body (31) is pressed into the distributor chamber (28), is sealingly guided in the valve chamber (25.2), while it is so when the switching valve is not actuated is accommodated in the bore section (25.4) that a connection between the channel (35) and the environment is made laterally past this sealing ring (31.2). Betätigungsventil nach Anspruch 7, dadurch gekennzeichnet, daß in dem Ventilblock (25, 26) zur Aufnahme der aus einem ersten Ventilkörper (36) und einem zweiten Ventilkörper (38) bestehenden Doppel-Ventileinheit eine Stufenbohrung angebracht ist, die einen an den Kanal (35) anschließenden Führungsabschnitt (39) hat, an den sich unter Bildung eines Ventilsitzes (40) eine erste Ventilkammer (41) anschließt, an die über einen Ventilsitz (42) eine zweite Ventilkammer (43) anschließt, die einen größeren Durchmesser hat als die Ventilkammer (41) und eine seitliche Öffnung zu dem Druckluft-Anschlußkanal (50) hat und an die über einen Ventilsitz (44) eine dritte Ventilkammer (45) anschließt, in die ein zur Umgebung offener Entlüfungskanal (46) mündet, daß der erste Ventilkörper (36) einen in der Führungsbohrung (39) geführten Ventilschaft (36.1) aufweist, der an seinem Umfang mindestens einen Axialschlitz aufweist und an seiner Oberseite einen mit dem Ventilsitz (40) zusammenwirkenden Dichtungsring (36.3) trägt, daß der zweite Ventilkörper (38) einen in der Ventilkammer (41) geführten Ventilschaft (38.1) aufweist, der im wesentlichen als Hohlzylinder mit seitlichen Wandöffnungen (38.2) ausgebildet ist, um in der Öffnungsstellung des ersten Ventilkörpers (36) eine Verbindung zwischen der Ventilkammer (41) und der Ventilkammer (43) herzustellen, daß der zweite Ventilkörper (38) einen ersten Dichtungsring (38.3) zum Zusammenwirken mit dem Ventilsitz (42) sowie einen zweiten Dichtungsring (38.4) zum Zusammenwirken mit dem Ventilsitz (44) trägt, und daß der Ventilkörper (38) mit einem in der Ventilkammer (45) abdichtend geführten Kolben (38.5) versehen ist derart, daß bei Druckluftbeaufschlagung des zweiten Ventilkörpers (38) dieser entgegen der Kraft einer sich zwischen den ersten und zweiten Ventilkörpern (36, 38) abstützenden Rückstellfeder (36.4) derart verstellbar ist, daß der Dichtungsring (38.4) von dem Ventilsitz (44) abgehoben und damit eine Verbindung zwischen dem Entlüfungskanal (46) und der zweiten Ventilkammer (43) und damit dem Druckluft-Anschlußkanal (50) herstellbar ist.Actuating valve according to claim 7, characterized in that in the valve block (25, 26) for receiving the double valve unit consisting of a first valve body (36) and a second valve body (38) there is a stepped bore which connects one to the channel (35 ) adjoining guide section (39), to which a first valve chamber (41) is connected to form a valve seat (40), to which a second valve chamber (43) is connected via a valve seat (42) and has a larger diameter than the valve chamber (41) and has a lateral opening to the compressed air connection channel (50) and to which a third valve chamber (45) connects via a valve seat (44), into which a ventilation channel (46) open to the environment opens that the first valve body ( 36) has a valve stem (36.1) guided in the guide bore (39), which has at least one axial slot on its circumference and one on the top with the valve seat (40) men acting sealing ring (36.3) that the second valve body (38) has a valve stem (38.1) guided in the valve chamber (41), which is designed essentially as a hollow cylinder with side wall openings (38.2) to in the open position of the first valve body ( 36) to establish a connection between the valve chamber (41) and the valve chamber (43) such that the second valve body (38) has a first sealing ring (38.3) for cooperation with the valve seat (42) and a second sealing ring (38.4) for cooperation with the Valve seat (44) carries, and that the valve body (38) is provided with a piston (38.5) sealingly guided in the valve chamber (45) such that when the second valve body (38) is pressurized with compressed air, the latter acts against the force of one between the first and second valve body (36, 38) supporting return spring (36.4) is adjustable such that the sealing ring (38.4) is lifted from the valve seat (44) and so that a connection between the ventilation duct (46) and the second valve chamber (43) and thus the compressed air connection duct (50) can be established. Betätigungsventil nach Anspruch 8, dadurch gekennzeichnet, daß dem Entlüftungskanal (46) eine Abluftdrossel zugeordnet ist.Actuating valve according to claim 8, characterized in that an exhaust air throttle is assigned to the ventilation duct (46). Betätigungsventil nach Anspruch 8, dadurch gekennzeichnet, daß an den Kanal (35) ein Kanalsystem (47, 47.1) anschließt, das in die Zyliderkammer (45') der dem zweiten Druckluft-Anschlußkanal (50') vorgeschalteten Doppel-Ventileinheit einmündet derart, daß der zweite Ventilkörper (38') dieser zweiten Doppel-Ventileinheit entgegen der Kraft der dieser zweiten Doppel-Ventileinheit zugeordneten Rückstellfeder (36.4') derart verstellbar ist, daß eine Verbindung zwischen der zweiten Druckluft-Anschlußleitung (50') und dem Entlüftungskanal (46') dieser zweiten Doppel-Ventileinheit herstellbar ist.Actuating valve according to claim 8, characterized in that a channel system (47, 47.1) adjoins the channel (35), which opens into the cylinder chamber (45 ') of the double valve unit upstream of the second compressed air connection channel (50') in such a way that the second valve body (38 ') of this second double valve unit can be adjusted against the force of the return spring (36.4') assigned to this second double valve unit in such a way that a connection between the second compressed air connection line (50 ') and the ventilation duct (46' ) this second double valve unit can be produced. Spulengatter, das mittels eines Gelenkvierecks an einer an dem Maschinengestell einer Textilmaschine angeordneten, das feststehende Glied des Viergelenks bildenden Halterung verschwenkbar gelagert ist und mittels eines einerseits an der Halterung und andererseits an einem der beweglichen Viergelenkglieder angelenkten Pneumatikzylinders aus einer unteren Beladeposition in eine obere Betriebsposition verschwenkbar ist, dadurch gekennzeichnet, daß zum Verschwenken des Spulengatters (2) aus der Betriebsposition in die Beladeposition der Pneumatikzylinder (8) ein zweiseitig mit Druckluft beaufschlagbarer Pneumatikzylinder ist und der Pneumatikzylinder mittels eines Betätigungsventils nach einem der Ansprüche 1 - 10 ansteuerbar ist..Bobbin creel, which is pivotably mounted by means of a four-bar linkage on a bracket arranged on the machine frame of a textile machine, forming the fixed member of the four-bar linkage, and pivotable from a lower loading position into an upper operating position by means of a pneumatic cylinder articulated on the one hand on the bracket and on the other hand on one of the movable four-bar links is characterized in that for pivoting the creel (2) from the operating position into the loading position of the pneumatic cylinders (8) is a pneumatic cylinder which can be acted upon on both sides by compressed air and the pneumatic cylinder can be controlled by means of an actuating valve according to one of claims 1 - 10. Spulengatter nach Anspruch 11, gekennzeichnet durch eine beidseitig an dem Viergelenk angelenkte Gasdruckfeder (9), die beim Verschwenken des Spulengatters (2) in die Beladeposition gespannt wird.Coil creel according to claim 11, characterized by a gas pressure spring (9) articulated on both sides of the four-bar linkage, which is tensioned into the loading position when the coil creel (2) is pivoted. Spulengatter nach Anspruch 12, dadurch gekennzeichnet, daß die Gasdruckfeder (9) im wesentlichen parallel zum Pneumatikzylinder (8) angeordnet und mit ihren Enden auf den beidseitigen Schwenkachsen des Pneumatikzylinders (8) gelagert ist.Coil creel according to claim 12, characterized in that the gas pressure spring (9) is arranged essentially parallel to the pneumatic cylinder (8) and its ends are mounted on the swivel axes of the pneumatic cylinder (8) on both sides. Spulengatter nach Anspruch 11, dadurch gekennzeichnet, daß die Gasdruckfeder (9) zwischen zwei Pneumatikzylindern (8) angeordnet ist.Coil creel according to claim 11, characterized in that the gas pressure spring (9) is arranged between two pneumatic cylinders (8). Spulengatter nach Anspruch 11, dadurch gekennzeichnet, daß an dem der Halterung (4) gegenüberliegenden Viergelenkglied (7) Aufnahmeglieder (12) zum Aufstecken von Vorlagespulen (Sp) angebracht sind.Spool creel according to claim 11, characterized in that receiving members (12) for attaching supply spools (Sp) are attached to the four-joint member (7) opposite the holder (4). Spulengatter nach Anspruch 11, dadurch gekennzeichnet, daß an dem der Halterung (4) gegenüberliegenden Viergelenkglied (7) ein Gestell (11) befestigt ist, an dem beidseitig Aufnahmeglieder (12) zum Aufstecken von Vorlagespulen (Sp) angebracht sind.Coil creel according to claim 11, characterized in that a frame (11) is fastened to the four-link member (7) opposite the holder (4), on which receiving members (12) for attaching supply spools (Sp) are attached on both sides. Spulengatter nach Anspruch 11, dadurch gekennzeichnet, daß jeder Pneumatikzylinder (8) mit seinem einen Ende an dem Viergelenkglied (7) befestigt ist, das dem die Halterung bildenden stationären Viergelenkglied (4) gegenüberliegt.Coil creel according to claim 11, characterized in that each pneumatic cylinder (8) is fastened at one end to the four-bar link (7) which is opposite the stationary four-bar link (4) forming the holder. Spulengatter nach einem der Ansprüche 11 bis 17, dadurch gekennzeichnet, daß das die Halterung bildende feststehende Viergelenkglied (4) zwei im Abstand voneinander liegende Rahmenteile (4.1) enthält, zwischen denen zwei Gelenke des Viergelenks bildende Achsen (4.2) bzw. (4.3) gelagert sind. Coil creel according to one of claims 11 to 17, characterized in that the fixed four-bar link (4) forming the holder contains two spaced-apart frame parts (4.1) between which two articulations of the four-bar axes (4.2) and (4.3) are mounted are. Spulengatter nach einem der Ansprüche 11 bis 18, dadurch gekennzeichnet, daß mindestens ein Viergelenkglied (6) kastenförmig gestaltet ist.Coil creel according to one of claims 11 to 18, characterized in that at least one four-bar link (6) is box-shaped. Spulengatter nach Anspruch 15 und 16, dadurch gekennzeichnet, daß das Viergelenkglied (7) zwei sich mit Abstand gegenüberliegende Wandabschnitte (7.1) aufweist, die durch eine Stirnwand (7.3) als Halterung für das Gestell (11) miteinander verbunden sind.Coil creel according to Claims 15 and 16, characterized in that the four-bar link (7) has two wall sections (7.1) which are at a distance from one another and are connected to one another by an end wall (7.3) as a holder for the frame (11).
    EP03008338.0A 2002-04-26 2003-04-10 Actuation valve for a double-acting pneumatic cylinder Expired - Lifetime EP1357298B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10218589 2002-04-26
    DE10218589 2002-04-26

    Publications (3)

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    EP1357298A2 true EP1357298A2 (en) 2003-10-29
    EP1357298A3 EP1357298A3 (en) 2005-09-28
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    EP03008338.0A Expired - Lifetime EP1357298B1 (en) 2002-04-26 2003-04-10 Actuation valve for a double-acting pneumatic cylinder

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    US (1) US6848641B2 (en)
    EP (1) EP1357298B1 (en)
    CN (1) CN1325802C (en)
    DE (1) DE10253340B4 (en)
    HK (1) HK1061060A1 (en)

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    Also Published As

    Publication number Publication date
    DE10253340A1 (en) 2003-11-20
    HK1061060A1 (en) 2004-09-03
    DE10253340B4 (en) 2007-02-15
    EP1357298B1 (en) 2013-06-12
    US6848641B2 (en) 2005-02-01
    US20030201355A1 (en) 2003-10-30
    CN1472443A (en) 2004-02-04
    EP1357298A3 (en) 2005-09-28
    CN1325802C (en) 2007-07-11

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