EP3428461B1 - Hydraulikzylinder und anlage, bei der ein solcher hydraulikzylinder eingesetzt wird - Google Patents

Hydraulikzylinder und anlage, bei der ein solcher hydraulikzylinder eingesetzt wird Download PDF

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Publication number
EP3428461B1
EP3428461B1 EP17181477.5A EP17181477A EP3428461B1 EP 3428461 B1 EP3428461 B1 EP 3428461B1 EP 17181477 A EP17181477 A EP 17181477A EP 3428461 B1 EP3428461 B1 EP 3428461B1
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EP
European Patent Office
Prior art keywords
control module
sensor
information
pressure
hydraulic actuator
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.)
Active
Application number
EP17181477.5A
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English (en)
French (fr)
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EP3428461A1 (de
Inventor
José Rodrigues Da Costa
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.)
Hydraulique Production Systems SAS
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Hydraulique Production Systems SAS
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
Priority to ES17181477T priority Critical patent/ES2865264T3/es
Application filed by Hydraulique Production Systems SAS filed Critical Hydraulique Production Systems SAS
Priority to EP17181477.5A priority patent/EP3428461B1/de
Priority to PT171814775T priority patent/PT3428461T/pt
Priority to US16/630,897 priority patent/US11149764B2/en
Priority to CA3069767A priority patent/CA3069767A1/fr
Priority to PCT/EP2018/067885 priority patent/WO2019011714A1/fr
Priority to CN201880055338.3A priority patent/CN111356845B/zh
Publication of EP3428461A1 publication Critical patent/EP3428461A1/de
Application granted granted Critical
Publication of EP3428461B1 publication Critical patent/EP3428461B1/de
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Anticipated expiration legal-status Critical

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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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2892—Means for indicating the position, e.g. end of stroke characterised by the attachment means
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1438—Cylinder to end cap assemblies
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1438—Cylinder to end cap assemblies
    • F15B15/1442—End cap sealings
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages

Definitions

  • the invention relates to an improvement of a hydraulic cylinder, and to an installation implementing one or more cylinders according to the invention.
  • the immobilization of a mold causes a loss of earnings and a delay in production. Handling a mold sometimes requires the intervention of bulky devices, such as lifting bridges, and which involves the full attention of one or more operators to be properly controlled.
  • jacks are used in particular to unmold the produced parts before grasping them and extracting them from the mold.
  • Cylinders are often prone to failures, because their rod is under high stress and it can sometimes break. Sometimes the cylinders have leaks and they can no longer perform their function of ejecting the molded parts.
  • EP 1 435 462 discloses an actuator comprising a body, a piston assembly and a rod assembly slidably disposed within the body.
  • a sensor arrangement includes a sensor, an electronic sensor module, and an interactive element. The interactive element is movable relative to the sensor, a position of the interactive element indicative of a position of the piston assembly and the rod assembly being communicated to the electronic module of the sensor by the sensor.
  • the invention aims to provide a new jack which makes it possible to anticipate a possible breakage or a possible sealing problem, which could make it inoperative.
  • the jack is intelligent because it is capable of transmitting information specific to its operation in real time to an external module, capable of processing and transmitting data to an operator, so as to prevent a possible problem that could lead to immobilization of a mold over a long period.
  • said connector is at least partially enclosed in a second sealed closure part which is fixed at least partially to an end wall of the jack, and the second sealed closure part is adjacent to the sealed receiving element. sensor head, to allow connection of the connector to the sensor head.
  • the invention also relates to an installation which uses one or more jacks in accordance with the invention.
  • said at least one cylinder is a hydraulic cylinder according to the invention, as defined above, and said at least one hydraulic cylinder communicates with said press control module. by sending it information specific to its operating state.
  • the press can be equipped with at least one solenoid valve connected to said fluid supply circuit of a hydraulic cylinder, and said control module can transmit operating commands to said solenoid valve, in particular in response to information. transmitted by said hydraulic cylinder.
  • said press can include at least one pressure sensor placed downstream of the solenoid valve and said at least one pressure sensor can communicate with said control module.
  • said mold can comprise more than two hydraulic cylinders
  • the press can comprise at least one drilled block comprising at least two solenoid valves and at least two pressure sensors, each pressure sensor being associated with a solenoid valve and each solenoid valve being associated with a hydraulic cylinder.
  • said control module can be associated with a communication interface that said installation comprises, said control module being able to transmit information to said communication interface, said information being transcribed on a screen intended for an operator.
  • said communication interface may be able to receive and transmit orders to the control module in response to information transmitted by an operator.
  • the method can, in parallel with step e) or k), implement the following step: m) Said control module transmits to said solenoid valve an operating command.
  • the retranscription of said hydraulic jack state response or said pressure state response by said communication interface can be written information edited on a screen and / or a sound signal emitted by said interface. and / or an item displayed on a screen in a predetermined color.
  • the figure 1 shows a jack according to the invention, comprising a body 1 of generally parallelepipedal exterior shape.
  • the body 1 has a cylindrical internal housing 2.
  • a wall 3 delimits the cylindrical internal housing and has a different wall thickness at different places of the body 1. This difference in wall thickness is due to the fact that the cylindrical housing, d 'axis X, is produced eccentric with respect to the axis X1 of the body 1 of the cylinder.
  • the upper part P1 of the body 1 has a wall 3 which is less thick than the part P2 of the lower body 1.
  • the figures 2 and 4 show that the wall is of the same thickness on the side parts P3 and P4 of the body (as it is positioned in the figures).
  • the internal housing 2 has a piston.
  • the piston 4 is mounted so as to move in the housing 2 under the effect of pressures exerted on either side of the piston by introducing fluid on either side of the piston into the housing.
  • the piston 4 makes a tight seal against the internal surface of the wall of the housing 2, so that it defines two internal chambers 5 and 6 which are tight and isolated from one another.
  • longitudinal passages 7 and 8 have been made in the thickness of the part P2.
  • the passages 7 and 8 have a longitudinal part whose axis is parallel to the X axis of the cylindrical housing 2.
  • the inlet 9 or 10 of each of the passages 7 and 8, respectively, is located at one end of the body 1, on opposite edges 11 and 12 of the body 1.
  • the passages 7 and 8 each comprise a bent part so as to present an outlet, respectively 13 and 14, which opens out into each of the chambers 5 and 6 respectively.
  • the passages 7 and 8 allow the introduction or the evacuation of a fluid in each of the chambers 5 and 6, respectively.
  • two radial bores 15 and 16 are made through the wall of the body, in the thickest part P2 comprising the two longitudinal passages 7 and 8. These radial bores 15 and 16 are visible in figure 1 only. They are made radially in the wall 3 of the body and they each laterally connect the outside of the body 1 to a longitudinal passage: the radial bore 15 connects the outside of the body 1 to the longitudinal passage 7 and the radial bore 16 connects the outside. from body 1 to longitudinal passage 8.
  • the end walls 17 and 18 are rectangular in shape and have substantially the same cross-sectional shape as that of the body 1.
  • Each of the end walls 17 and 18 has a through opening 20 and 21, respectively, the usefulness of which will be discussed later.
  • annular groove 22 or 23 is made in the wall thickness, around each of the inlets 9 and 10, in the edges 11 and 12 of the body 1.
  • an O-ring seal 24 or 25 is placed in each of the grooves 22 or 23, respectively, and is crushed between the bottom of the grooves 22 or 23 and the end walls 17 or 18. In this way, the inlets 9 and 10 are sealed.
  • the seal between the surface of a mold (not shown) and the surface 26 of the cylinder body having the radial holes 15 and 16 is carried out in the same way:
  • the radial bores 15 and 16 have inlets which are located on the surface 26 of the body 1 of the jack.
  • Each of the entries of the radial bores 15 and 16 is surrounded by a groove 27 and 28, respectively, and each groove 27 and 28 receives an O-ring 29 and 30 respectively.
  • Sealing is obtained by fixing the jack on the surface of the mold, by pressing the surface 26 of the jack against the surface of the mold, for example by screwing, which compresses the joints 29 and 30, ensuring the seal.
  • the cylinder is fixed by screwing through through holes 31 formed in the body 1 of the cylinder through the wall 3 and shown in figure 2 .
  • the jack comprises a rigid rod 32, integral with the piston 4 and coaxial with the internal cylindrical housing 2.
  • This rigid rod 32 comes out and enters the body 1 of the cylinder, following the movement of the piston and makes it possible to move objects placed against its free end 33.
  • the free end of the rigid rod 33 may include a threaded blind hole 34 to fix an element therein, for example.
  • a first sealed closure part 35 closes the opening 20 of the end wall 17 of the jack.
  • the rigid rod 32 passes through the first sealed closure piece 35.
  • the rod 32 is guided axially through the first tight closure piece 35 by means of a series of several rings 36 internal to the first tight closure piece 35, the rings projecting. and distributed over the entire length of the sealed closure part 35.
  • first sealed closure part 35 bears at least partially against the internal wall of the cylindrical housing 2 (see figures 1 and 2 ).
  • a second sealed closing part 37 closes the opening 21 made in the end wall 18, opposite to the end wall 17.
  • the jack according to the invention thus produced, is waterproof and efficient.
  • the objective behind the invention is to equip the jack with means making it possible to know precisely its state, and more particularly, the position of the rod and of the piston in the internal cylindrical housing: thus, the jack conforms to the invention can provide elements specific to its state of operation.
  • the jack comprises a position sensor, capable of delivering information on the position of the rod 32 or of the piston 4 in the cylindrical internal housing 2.
  • the position sensor 38 comprises a sensor head 39, integral with a sensor rod 40 around which is placed (fitted) a magnet 41.
  • the position sensor 38 also comprises a connector 42 connected to the sensor head 39.
  • the magnet 41 is fitted around the rod 40 so as to be able to move along the rod 40.
  • the sensor head identifies its position on the rod 40: this is how the sensor generates position information.
  • the various elements that the sensor comprises are arranged in the following manner in the jack:
  • the sensor head 39 is enclosed in an element 43 internal to the body 1 of the jack.
  • the internal element 43 being sealed and fixed in the cylindrical housing 2 of the cylinder body.
  • the internal element 43 forms a bottom stop for the piston 4 of the jack.
  • the sensor rod 40 integral with the sensor head 39, comes out of the internal element 43 through an opening 44 formed in the internal element 43.
  • the sensor rod 40 passes through the piston 4 and it is received at least partially in the rod 32 of the jack according to the invention.
  • the magnet 41 fitted around the sensor rod 40, is received in the piston and is fixed there by means of a nut 45. Thus, when the piston 4 moves, the magnet 41 is also moved. This is how the sensor can know precisely the position of the piston in the internal housing 2. It is thus possible to control the stroke of the piston.
  • the connector 42 is connected to the sensor head 39 by any known means: the connector 42 receives the information generated by the sensor head 39 (in particular concerning the stroke of the jack) and it comprises a cable (not shown) which makes it possible to transmit the information it receives at a remote information processing module.
  • the connector 42 is at least partially enclosed in the second sealed closure part 37 mentioned above.
  • the second sealing piece 37 is adjacent to the internal sealed element 43 comprising the sensor head 39.
  • the sensor head 39 protrudes from one side of the sealed internal element 43.
  • the protruding part of the sensor head 39 is received in the second sealing piece 37.
  • the second sealing piece sealed closure 37 comprises at least partially the connector 42 and the sensor head 39.
  • the second sealed closure part comprises a chamber 46.
  • the chamber 46 provides a space suitable for receiving the connection parts of the sensor head 39 and of the connector 42, for example wires connecting the two elements.
  • the jack incorporating the position sensor also protects the latter and the position sensor is easily integrated into the elements of the jack.
  • the jack according to the invention makes it possible to transmit precise information on its operating state, and in particular on the stroke of the piston in the cylindrical housing 2.
  • Such information collected is invaluable for an operator who can anticipate a failure such as a seizure of the cylinder, a broken rod, a leak ...
  • the figure 5 shows an example of installation according to the invention, which comprises a mold 47, comprising two half-molds 48 and 49 mounted in a press 50. These elements are here represented very roughly by blocks.
  • the clamping press 50 is of the type comprising two plates 51 and 52, one 51 of the plates supporting the half-mold 48 and the other 52 of the plates supporting the other half-mold. 49.
  • One 51 of the plates is fixed while the other plate 52 is mounted to move relative to the first, to allow the opening and closing of the mold.
  • the movable plate 52 is, as is known to those skilled in the art, slidably mounted along guide rods (symbolically illustrated by the element bearing the reference 53 on the figure 5 ).
  • the press is preferably equipped with means for blocking the movable plate in position (not shown), for example jaws which are blocked on the guide rod or rods.
  • At least one of the two half-molds comprises at least one cylinder 100 such as that described and illustrated in figures 1 to 4 .
  • the half-mold 49 mounted on the movable plate 52 comprises 8 jacks 100.
  • the invention is not limited to the presence of a particular number of jacks on a half-mold and that it extends to any installation which would include a mold comprising at least one jack 100.
  • the jacks 100 that the mold 47 comprises are used, for example, to demold the molded parts inside the mold, or else to move elements internal to the mold, either to facilitate demolding or to promote the extraction of the molded parts.
  • the press 50 comprises a control module 54, which controls the operation of the mold 47 in particular, for example the movement of the movable plate to ensure the opening or closing of the mold.
  • each jack 100 communicates with the control module 54 and transmits to it information specific to its operating state.
  • the connectors 42 of each of the actuators 100 are connected by a network of wires 55 to the control module so as to transmit the information specific to each actuator 100 on the position of the piston in the sensor. In this way, the control module is permanently informed of the stroke of the cylinder at any time T.
  • control module If the control module detects an anomaly (as will be seen below), it can inform an operator: for example, if the actuator always gives the same travel information, during a predetermined period of time, then the control module The control can identify that there is a problem with a leak or a broken cylinder rod, and more importantly identify the faulty cylinder.
  • the installation comprises a communication interface 56, for example a computer equipped with a screen and a sound emission device.
  • the communication interface 56 is provided on the press 50 in the context of this exemplary embodiment, but it could also be provided outside the press 50, on a device external to the press and connected to the latter everywhere. known.
  • the communication interface 56 also includes means making it possible to transmit operating orders to the control module: for example, the orders may relate to putting the machine on standby, or a particular movement of the movable plate 52 ... These orders are given by an operator who orders the transmission of these orders via the communication interface.
  • the assembly formed by the communication interface and the control module forms the management interface 57 of the installation.
  • the cylinders 100 included in the installation can transmit indications on their stroke to the control module.
  • the jacks 100 can operate at different fluid pressures.
  • the installation according to the invention provides for placing, on the press, at least one drilled block 58 comprising at least two solenoid valves 59.
  • the pressure comprises two drilled blocks 58 each comprising four solenoid valves 59.
  • Each jack 100 is connected to a solenoid valve 59.
  • the jacks 100 are connected by group of four jacks to a drilled block 58 comprising four solenoid valves.
  • the drilled block comprises four sets of elements 60, each of the sets 60 comprising a solenoid valve 59, a non-return valve 61 placed downstream of the solenoid valve 59 and a pressure sensor 62, placed downstream of the non-return valve 61.
  • the pressure sensor 62 communicates with the control module 54: for the circuit which concerns it, the pressure sensor 62 transmits information on the pressure of the circuit in real time or at predetermined intervals.
  • control module can detect abnormal pressure information and inform the operator thereof via the communication interface.
  • the control module can also control the opening of the solenoid valve 59 for a given circuit, so as to increase the pressure in a circuit and thus increase the pressure in a hydraulic cylinder 100.
  • the control module can transmit operating orders to the solenoid valve 59, associated with the given circuit, for example to increase the pressure in the hydraulic cylinder. and correct its course.
  • the installation according to the invention operates according to a predetermined cycle of opening and closing of the mold, and of injection of material into the mold.
  • the installation implements a method in accordance with the invention aimed at continuously indicating to an operator whether the hydraulic cylinders are in good working order.
  • the position sensors 38 of each of the hydraulic cylinders 100 generate position information 63 ( figure 6 ) which defines the position of the piston in the cylindrical internal housing 2 of the cylinder in which it is located.
  • the position information 63 is therefore information on the stroke of the jack.
  • the position information 63 is transmitted via the network 55 to the control module.
  • the network is a network of electrical conductors operating at an intensity of 4.2 mA.
  • Said control module 54 compares the position information 63 that it receives with a reference position information that has been communicated to it. This is the comparison step bearing the reference 64 on the figure 6 : for example, if the cylinder 100 must have a stroke of 300 mm to function correctly, then the reference position information is 300 mm and the position information 63 that it receives is compared to it.
  • control module may consider that the position information 63 conforms or not to the reference position information.
  • control module 54 Based on the comparison between the reference position information and that which it receives, the control module 54 generates two responses: either the position information 63 is compliant and the response generated is yes, or the position information 63 does not comply and the response generated is no.
  • control module transmits to the communication interface 56 a compliance information 65 which causes, on the display screen of the interface 56, the delivery of a message 66 indicating to the operator that the cylinder is operating normally.
  • the control module can act in at least two ways: firstly, it transmits to the communication interface 56 a non-conformity information 67 which leads, on the screen of display of the interface 56, the issuance of a message 68 indicating to the operator that the cylinder has an operating problem. In parallel with this, the control module can analyze the nature of the non-conformity (the analysis step bears the reference 69) and generate orders aimed at modifying the operation of the installation.
  • the analysis of the position information 63 can indicate a problem of underpressure in the jack 100.
  • the control module 54 can generate an operating command 71 to the assembly 60, aimed at to open the solenoid valve 59 to increase the internal pressure.
  • the installation according to the invention can implement a method aimed at monitoring other parameters.
  • the pressure sensor 62 of each assembly 60 (contained in the drilled blocks 58) continuously generates pressure information 72 which it transmits to the control module 54 via a network 73 of cables operating at a current of 4.20 mA.
  • the control module 54 compares this pressure information with a pressure threshold value, so as to identify whether or not the pressure detected is in accordance with the pressure that must be had in a particular cylinder supply duct with fluid. .
  • This comparison step is also identified by the reference 64.
  • control module informs the operator by ordering the transmission of a normality message 66 on the communication interface 56: this is a response 65 of the control module transmitted to the communication interface 56.
  • the response of the communication interface to signal a problem can also be different or complementary to a message displayed on a screen: the interface could emit an audible signal sufficiently audible by the operator to alert him of a problem and the '' bring up the communication interface screen.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (12)

  1. Hydraulikzylinder mit:
    - einem Körper (1) mit einer eine zylindrische Aufnahme (2) begrenzenden Wand (3) mit einer zylindrischen Aufnahmeachse (X), in dem ein Kolben (4) verschieblich montiert ist, wobei der Kolben (4) die zylindrische Aufnahme (2) in zwei dichte und gegeneinander isolierte Kammern (5 ,6) trennt,
    wobei die Wand (3) des Körpers mindestens zwei Durchführungen (7, 8) aufweist, um ein Fluid in jede der zwei Kammern (5,6) einzuführen bzw. abzuleiten,
    - zwei Endwänden (17, 18), wobei jede Endwand ein Ende der zylindrischen Aufnahme (2) dicht verschließt,
    - einer steife Stange (32), die mit dem Kolben (4) fest verbunden ist und koaxial zur zylindrischen Aufnahme (2) verläuft, wobei die Stange (32) durch eine in einer der beiden Endwände (17, 18) gebildete Durchführungsöffnung (20) durchgeführt wird,
    - einem Positionssensor (38) mit einem Sensorkopf (39), einem mit dem Sensorkopf (39) fest verbundenen Sensorstift (40) und einem Magnet (41) und
    - einem mit dem Sensorkopf (39) verbundenen Stecker (42),
    wobei der Positionssensor wie folgt in dem Zylinder angeordnet ist:
    - der Sensorstift (40) ist zumindest teilweise in die starre Stange (32) des Hydraulikzylinders eingeführt
    - und der Magnet (41) ist in dem Kolben (4) eingeschlossen,
    so dass
    - der Sensorkopf (39) in einem dichten, dem Körper (1) internen Element (43) eingeschlossen ist, wobei das dichte Element (43) einen Bodenanschlag für den Kolben (4) bildet,
    - der Magnet um den Sensorstift (40) derart gesteckt ist, dass er entlang des Sensorstifts (40) beweglich ist,
    und so dass der Zylinder ein zweites dichtes Verschlussteil (37) umfasst, das eine Öffnung (21) verschließt, welche in der der Öffnung (20) für die Durchführung der Kolbenstange entgegengesetzten Endwand gebildet ist, wobei der Stecker (42) zumindest teilweise in dem zweiten dichten Verschlussteil (37) eingeschlossen ist, das zumindest teilweise an einer Endwand (18) des Zylinders befestigt ist, und so dass das zweite dichte Verschlussteil (37) an dem dichten Element (43) zur Aufnahme des Sensorkopfes angrenzt, um die Verbindung des Steckers (42) mit dem Sensorkopf (39) zu ermöglichen.
  2. Zylinder nach Anspruch 1, dadurch gekennzeichnet, dass der Sensorkopf (39) teilweise in das zweite dichte Verschlussteil (37) aufgenommen ist.
  3. Hydraulikzylinder nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das zweite dichte Verschlussteil (37) eine Kammer (46) aufweist, die zwischen dem Sensorkopf und dem Stecker angeordnet ist, wobei die Kammer (46) geeignet ist, die den Sensorkopf mit dem Stecker verbindenden Verbindungsteile aufzunehmen.
  4. Anlage für die Herstellung von mindestens einem in mindestens eine Form eingespritzten Teil, wobei die Anlage umfasst:
    - mindestens eine Form, die mit mindestens einem Zylinder ausgerüstet ist, insbesondere um ein in der Form durch Spritzgießen hergestelltes Teil zumindest teilweise auszuwerfen,
    - mindestens eine Presse, insbesondere um das Öffnen und Schließen der Form sicherzustellen, wobei die Presse mindestens ein Steuermodul aufweist, um den Betrieb der Form zu steuern,
    dadurch gekennzeichnet,
    dass der mindestens eine Zylinder ein Hydraulikzylinder nach einem beliebigen der vorhergehenden Ansprüche ist, und
    dass der mindestens eine Hydraulikzylinder mit dem Steuermodul der Presse kommuniziert, indem er ihm Informationen über seinen Betriebszustand übermittelt.
  5. Anlage nach Anspruch 4, dadurch gekennzeichnet, dass die Presse mit mindestens einem Magnetventil ausgerüstet ist, das mit dem Fluidversorgungskreislauf eines Hydraulikzylinders verbunden ist, und dass das Steuermodul Betriebsbefehle an das Magnetventil übermittelt, insbesondere als Antwort auf die von dem Hydraulikzylinder übermittelten Informationen.
  6. Anlage nach Anspruch 5, dadurch gekennzeichnet, dass die Presse mindestens einen Drucksensor aufweist, der nach dem Magnetventil angeordnet ist, und dass der mindestens eine Drucksensor mit dem Steuermodul kommuniziert.
  7. Anlage nach einem der vorstehenden Ansprüche 4 bis 6, dadurch gekennzeichnet, dass die Form mehr als zwei Hydraulikzylinder nach einem beliebigen der Ansprüche 1 bis 3 aufweist, dass die Presse mindestens einen gebohrten Block mit mindestens zwei Magnetventilen und mindestens zwei Drucksensoren aufweist, wobei jeder Drucksensor einem Magnetventil und jedes Magnetventil einem Hydraulikzylinder zugeordnet ist.
  8. Anlage nach einem der vorstehenden Ansprüche 4 bis 7, dadurch gekennzeichnet, dass das Steuermodul einer in der Anlage enthaltenen Kommunikations-schnittstelle zugeordnet ist, wobei das Steuermodul geeignet ist, der Kommunikationsschnittstelle Informationen zu übermitteln, welche auf einem Bildschirm für eine Bedienperson wiedergegeben werden.
  9. Anlage nach Anspruch 8, dadurch gekennzeichnet, dass die Kommunikationsschnittstelle geeignet ist, Befehle zu empfangen und dem Steuermodul als Antwort auf die von einer Bedienperson übermittelten Informationen zu übermitteln.
  10. Verfahren zur Umsetzung einer Anlage nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass es die folgenden Schritte umfasst:
    n) Der Sensor (38) des Hydraulikzylinders (100) erzeugt eine Positionsinformation (63).
    o) Die Positionsinformation (63) wird dem Steuermodul (54) übermittelt.
    p) Das Steuermodul (54) vergleicht die Positionsinformation (63) mit einer Referenz-Positionsinformation.
    q) Das Steuermodul (54) erzeugt eine Antwort (65, 67) über den Hydraulikzylinderzustand.
    r) Das Steuermodul (54) übermittelt die Antwort (65, 67) über den Hydraulikzylinderzustand an eine Kommunikationsschnittstelle (56).
    s) Die Kommunikationsschnittstelle (56) gibt die Antwort über den Hydraulikzylinderzustand so wieder, dass sie für eine Bedienperson verständlich ist.
    u) Der mindestens eine Drucksensor (62) erzeugt eine Druckinformation (72).
    v) Der mindestens eine Drucksensor (62) übermittelt die Druckinformation (72) an das Steuermodul (54).
    w) Das Steuermodul (54) vergleicht die Druckinformation (62) mit einem Druckschwellwert und erzeugt eine Antwort (65, 67) über den Druckzustand.
    x) Das Steuermodul übermittelt die Antwort (65, 67) über den Druckzustand an eine Kommunikationsschnittstelle (56).
    y) Die Kommunikationsschnittstelle (56) gibt die Antwort über den Druckzustand derart wieder, dass sie für eine Bedienperson verständlich ist.
  11. Verfahren nach Anspruch 10, dadurch gekennzeichnet, dass parallel zum Schritt r) oder zum Schritt x) folgender Schritt umgesetzt wird:
    t) das Steuermodul (54) übermittelt dem Magnetventil (59) einen Betriebsbefehl (71).
  12. Verfahren nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die Wiedergabe der Antwort über den Hydraulikzylinderzustand oder die Antwort über den Druckzustand durch die Kommunikationsschnittstelle (56) eine schriftliche Information (66, 67, 70) ist, die an einem Bildschirm editiert wird und/oder ein akustisches Signal, das von der Schnittstelle (56) ausgegeben wird, und/oder ein Element (66, 67, 70), das an einem Bildschirm mit einer vorbestimmten Farbe angezeigt wird.
EP17181477.5A 2017-07-14 2017-07-14 Hydraulikzylinder und anlage, bei der ein solcher hydraulikzylinder eingesetzt wird Active EP3428461B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP17181477.5A EP3428461B1 (de) 2017-07-14 2017-07-14 Hydraulikzylinder und anlage, bei der ein solcher hydraulikzylinder eingesetzt wird
PT171814775T PT3428461T (pt) 2017-07-14 2017-07-14 Cilindro hidráulico e instalação que implementa pelo menos um tal cilindro hidráulico
ES17181477T ES2865264T3 (es) 2017-07-14 2017-07-14 Cilindro hidráulico e instalación que utiliza por lo menos dicho un cilindro hidráulico
CA3069767A CA3069767A1 (fr) 2017-07-14 2018-07-03 Verin hydraulique et installation mettant en oeuvre au moins un tel verin hydraulique
US16/630,897 US11149764B2 (en) 2017-07-14 2018-07-03 Hydraulic cylinder and facility implementing at least one such hydraulic cylinder
PCT/EP2018/067885 WO2019011714A1 (fr) 2017-07-14 2018-07-03 Verin hydraulique et installation mettant en oeuvre au moins un tel verin hydraulique
CN201880055338.3A CN111356845B (zh) 2017-07-14 2018-07-03 液压作动筒和使用至少一个这种作动筒的设备

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EP17181477.5A EP3428461B1 (de) 2017-07-14 2017-07-14 Hydraulikzylinder und anlage, bei der ein solcher hydraulikzylinder eingesetzt wird

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CN (1) CN111356845B (de)
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US11067105B1 (en) * 2020-02-21 2021-07-20 Caterpillar Inc. Flange mount cylinder sensor

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CN111356845B (zh) 2022-08-05
WO2019011714A1 (fr) 2019-01-17
US20200232486A1 (en) 2020-07-23
CN111356845A (zh) 2020-06-30
EP3428461A1 (de) 2019-01-16
ES2865264T3 (es) 2021-10-15
US11149764B2 (en) 2021-10-19
CA3069767A1 (fr) 2019-01-17
PT3428461T (pt) 2021-04-27

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