EP0723605B1 - Jacquardmaschine - Google Patents

Jacquardmaschine Download PDF

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Publication number
EP0723605B1
EP0723605B1 EP94930182A EP94930182A EP0723605B1 EP 0723605 B1 EP0723605 B1 EP 0723605B1 EP 94930182 A EP94930182 A EP 94930182A EP 94930182 A EP94930182 A EP 94930182A EP 0723605 B1 EP0723605 B1 EP 0723605B1
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EP
European Patent Office
Prior art keywords
jacquard machine
deformable
hook
state
machine according
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.)
Expired - Lifetime
Application number
EP94930182A
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German (de)
English (en)
French (fr)
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EP0723605A1 (de
Inventor
Walter Keim
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.)
Grosse Webereimaschinen GmbH
Original Assignee
Grosse Webereimaschinen GmbH
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.)
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Publication date
Priority claimed from DE19934335620 external-priority patent/DE4335620A1/de
Application filed by Grosse Webereimaschinen GmbH filed Critical Grosse Webereimaschinen GmbH
Publication of EP0723605A1 publication Critical patent/EP0723605A1/de
Application granted granted Critical
Publication of EP0723605B1 publication Critical patent/EP0723605B1/de
Anticipated expiration legal-status Critical
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/20—Electrically-operated jacquards
    • D03C3/205—Independently actuated lifting cords
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types

Definitions

  • the invention relates to a jacquard machine without the use of Harness cords comes along, and a method for operating the invention Jacquard machine.
  • boards are used for lifting and lowering the warp threads of a weaving machine connected to the jacquard machine depending on the weaving patterns to be coupled with driven knives or detached from them.
  • the boards When the boards are connected to the driven knives, they lead one compartment-forming lifting and lowering movement.
  • a board selection device depending on the weaving pattern to be woven, certain sinkers selected, which are separated from the driven knives and thus on not participate in the lifting and lowering movement.
  • the reporting of the weaving pattern is done using a variety of harness cords, which is a form-fitting Connection between the sinkers and the warp threads during the lowering movement allow.
  • One warp thread in the repeat of the weaving pattern is with one plate over one Harness cord connected.
  • the harness cords provided tension springs.
  • the plate selection device has a periodically up and down movable formed by a leaf spring element deformable element on which carries a holding element with a groove in which a patine is recorded.
  • the deformable element can have two transverse to the up and down movement Take positions, namely a basic position, in which the board in the Groove can be moved up and down, and a selection position in which the board in the Groove is pinched and can be deflected to select this board.
  • To the Deformation to achieve the selection position is an external mechanical Load-causing obstacle to the free up and down movement of the deformable Elements opposed.
  • harness cords to control the lifting and lowering movement of the Warp threads are disadvantageous because the harness cords are subject to great wear and the replacement of a broken harness cord during the operation of the Weaving machine leads to a longer production downtime.
  • each one Warp thread is a push-off device for coupling one for each warp thread provided circuit board provided with two reciprocating lifting knives.
  • the Push-off device comprises a selection device, which according to the weaving pattern selects individual boards, which are based on the lifting and lowering movement of the Do not participate in the lifting knife.
  • the boards are on their underside, the so-called Board bottom, each connected with a strand, which with the to be lifted or closed lowering warp thread is engaged.
  • From DE-AS 21 19 053 is a harnessless device for training known on looms.
  • a wire or bobbin element is provided for each warp thread, which is by means of a strand or rod is connected to the relevant warp threads.
  • the wire or Coil elements are arranged in a static magnetic field and are connected to a electrical current is applied. Depending on the current direction, the wire or Coil elements either deformed up or down or deflected. The the resulting lifting or lowering movement is opened by means of the strands or rods transfer the warp threads.
  • such an arrangement is due to the need high currents and magnetic field strengths are practically difficult to achieve.
  • the present invention is therefore based on the object of a jacquard machine to create the form-fitting in both the lifting and lowering movements works and enables a quick change of the position of the warp threads. Furthermore, it is the object of the present invention, a method for operating the Specify jacquard machine according to the invention.
  • the task is characterized by the characteristics of the Claim 1 solved.
  • the invention is based on the finding that the use of a bistable Element that a first under the action of a mechanical deformation stress stable position in the stroke position of the board and a second stable Has position in the lower position of the board, easy control both the lifting and lowering movement of the boards offers.
  • the term circuit board is used here and used below for a movement element that has a positive Connection between a (board) selection device and the one to be controlled Warp thread guaranteed.
  • the board selection device acts on the bistable element that a particular one of the two states for the selected Boards is reached safely.
  • Claims 2 to 17 relate to advantageous developments of the invention Jacquard machine.
  • the bistable element can advantageously be elastically deformable, in particular in the form of a Rod or a leaf spring may be formed.
  • the mechanical deformation stress can thereby by an axially or longitudinally directed force component on the Act on the rod or leaf spring. According to claims 8 and 9, this can be done by bringing together two in the end region of the rod or the leaf spring arranged bearing points z. B. by means of an eccentric or a hydraulic or Pneumatic pistons happen.
  • Locking element can be provided that the bistable element in one of its locked position locked.
  • An unlocking element can also advantageously be provided that the bistable Releases the element after a specified locking time.
  • an initial device can be provided according to claims 14 to 17, the one depending on a corresponding control signal Initial deflection of the bistable element causes, the bistable element after the action of the mechanical deformation stress (as the first state at Commissioning of the jacquard machine) one of the two stable ones Takes on situation.
  • the initial device can e.g. B. hydraulic, pneumatic, operated electromagnetically or electrostatically.
  • the claim 21 relates to the operation of the jacquard machine as Open pocket jacquard machine.
  • the bistable elements change immediately between the two stable positions and are locked in these states. After each weft entry of the loom it is determined which sinkers for the next weft entry of the weaving machine according to the weaving pattern of its condition have to change. The position of the bistable elements is changed by unlocking and exercising the mechanical Deformation stress, so that the bistable elements the other stable Reach situation.
  • the claim 23 relates to a method for operating the jacquard machine as Closed pocket jacquard machine.
  • the bistable elements go after everyone Weft entry of the weaving machine back into a neutral position. After selection the boards to be lifted and the boards to be lowered become a corresponding one Initial deflection is exerted on each of the bistable elements so that the bistable Elements by exerting the mechanical deformation stress into a certain one of the two stable states.
  • the jacquard machine explained above looks for each warp thread of the weaving machine a bistable element, in particular an elastically deformable rod or a elastically deformable leaf spring, in front, each with a non-positive and positive connection is connected to the associated warp thread.
  • bistable element in particular an elastically deformable rod or a elastically deformable leaf spring
  • a tensioning device is provided in which the bistable elements at least are stored on one side.
  • the tensioning device is non-positively connected to a drive shaft but not positively coupled, so that the clamping device from the drive shaft is carried when the tensioning device is not stopped.
  • the tensioning device is stopped by means of a locking device when the Boards have reached their raised or lowered state by one to ensure safe weft insertion of the looms, in particular to this To be able to maintain the condition for several shots if necessary.
  • the tensioning device has a tensioning lever which is connected to the drive shaft non-positive, e.g. B. is resiliently connected.
  • the locking device can according to claim 25 in a simple manner as a shoe brake be formed and can be pivoted according to claim 26 have mounted brake lever, the suitable brake shoes from a low wear material with a high coefficient of friction, from one sawtooth-like engagement arrangement or the like., The necessary braking force for Stopping the tensioning device on suitable parts of the tensioning device, in particular the tensioning lever according to claim 24.
  • the brake shoes can be either applied directly to the brake lever according to claim 27, arranged on this or, in order to avoid shearing, to be embedded in it. Training as a shoe brake is advantageous because when the vibration path changes the tensioning device does not require any adjustment, but this is essential safe hold in the braking position.
  • the brake lever of the locking device can be advantageous according to claim 28 be biased such that one for stopping the same on the tensioning device sufficient braking force is exerted. This has the advantage that the braking force without more energy consuming units is applied and z. B. in the event of failure of Operating voltage of the machine, the clamping device is automatically stopped.
  • the shoe brake In order to release the locking device, the shoe brake must be released in a suitable manner be. This can be according to claim 29 by a camshaft and or Electromagnets are made.
  • the locking device In the released state, the locking device can be by means of a z. B. on the brake lever acting electromagnet according to claim 30 be fixed until it has to be locked again.
  • the Electromagnet can also be energized only briefly for control purposes, then must to ensure safe holding in the released state, e.g. B. can according to claim 31, a permanent magnet can be provided which, after activation by the electromagnet can hold the brake lever.
  • the locking device according to claim 32 in a simple manner designed as an electromagnetically, pneumatically or hydraulically actuated plunger be the movement path of the tensioning device when actuated accordingly blocked.
  • a locking device designed as a shoe brake can be designed according to claim 33 advantageously be further developed by means of a toggle lever, which is in its extended Position by means of a brake shoe stops the tensioning device and in its angled position releases the jig.
  • a brake lever, power arm and Active arm of the lever device to that required to stop the tensioning device Braking force must be adjusted.
  • To operate the toggle lever can be according to claim 35 at one end of the Knee lever arranged toggle lever drive shaft can be provided, which like that Drive shaft for the clamping device executes a rocking movement such that the Toggle lever is transformed between its extended and angled position.
  • Holding device may be provided.
  • the holding device can be adjusted in a simple manner
  • Claim 37 may be formed by an electromagnet, according to claim 38 with a restoring device associated with the toggle lever can cooperate.
  • the toggle lever can be designed so that it is in its extended position snaps into place. This can be achieved in a simple manner by extending the toggle lever become.
  • the stopped clamping device can an electromagnetically, pneumatically, hydraulically or the like actuatable plunger be provided according to claim 39.
  • Fig. 1 shows a first embodiment of the board control in the Jacquard machine according to the invention. Only the arrangement for one is shown single board that multiple according to the number of boards used is available.
  • the board control has a bistable element (in the present Embodiment as an elastically deformable rod 1).
  • a Hydraulic device 2a and 2b and a linkage 3a and 3b is the rod 1 with a Axial force pair resilient, so that on the rod 1 a mechanical deformation stress acts.
  • the rod 1 is in the bearing points 4a and 4b rotatably mounted on the linkage 3a and 3b.
  • the upper stable position the rod is shown in the figure as a solid line, while the lower one stable position is indicated in the figure as a broken line.
  • the circuit board 6 has an eyelet 7 for receiving a warp thread.
  • a fastening device for a strand or on the underside of the board the like to provide the connection between the warp threads and the Board 6 mediates.
  • an initial device 8 can be provided for the initial conditions Embodiment is also designed as a hydraulic device. On the Operation of the initial device 8 will be discussed further below.
  • a Locking element 9 is provided, which is rotatably mounted on the linkage 3a. On On the side of the linkage 3b, the locking element 9 has a pawl end 10, in which the linkage 3b after reaching any of the two stable Position of the rod 1 snaps into place.
  • the elastically deformable rod 1 in its upper stable position is also the one with this over the board 6 connected warp thread in a raised state while the Warp thread is in a lowered state when the elastically deformable rod 1, assumes its lower stable position. While locking the rod 1 by the locking element 10 is the shed of the loom consequently open.
  • the locking state is determined by means of an unlocking element 11, that executed in the illustrated embodiment as a controllable electromagnet is finished.
  • the electromagnet 11 causes a lifting of the Locking element 9, so that the movement of the linkage 3a and 3b released becomes.
  • the initial device 8 is used in the above-described operation of the Jacquard machine according to the invention as an open compartment jacquard machine only for safe reaching of the raised or lowered state Commissioning of the machine and can also be omitted. If the Initial device 8 is through a suitable pre-deformation of the rod 1 ensure that when the rod is put into operation first one of the two assumes a stable position. For this basic or pre-deformation can already the gravity of the board 6 should be sufficient. Finally, you can do without it be that all bistable elements so the rods 1 at startup assume the predefined position if an empty cycle without Weft entry of the weaving machine is made in which the Initial positional states of the bistable elements 1 are produced.
  • a sensor element or a pair of sensor elements 30a, 30b can be provided to detect whether the elastically deformable rod 1 is in the raised or lowered position.
  • the sensor elements 30a, 30b can e.g. as electrical contacts but also as non-contact proximity sensors be trained.
  • Sensor elements 30a, 30b are particularly advantageous because when the machine is started up it can be determined with certainty in which of the two stable positional states one is each of the elastically deformable rods 1 in the present exemplary embodiment trained bistable element. The state of those elastic deformable rods 1, which are in relation to the subsequent weft entry of the Weaving machine is not in the intended position, can then during the subsequent cycle of the acting deformation force in the other Situation can be transferred.
  • Fig. 2 is another embodiment of the board control in the Jacquard machine according to the invention shown.
  • an elastically deformable one Rod 1 or an elastically deformable leaf spring is the bistable element in shown embodiment from a scissor-like linkage 1a and 1b, the engages rotatably in the bearing points 4a and 4b in the linkage 3a and 3b.
  • the Bearing points 4a and 4b are as in the embodiment shown in FIG. 1 can be brought together and separated by means of a hydraulic device 2a and 2b.
  • the device also has the locking mechanism already described with reference to FIG. 1. and unlocking device 9-11.
  • the scissor-like linkage 1a and 1b has an upper, first stable shown in FIG.
  • a targeted selection of a specific one of the two stable situation states can either by means of the hydraulic or pneumatic piston 8 shown in FIG. 1, or as shown in Fig. 2, by means of two electromagnets 8a and 8b.
  • a control pulse is applied to the electromagnets 8a, that is to say it excites a control pulse downward initial deformation of the bistable element 1a and 1b, so that the bistable element la and 1b after merging the two bearing points 4a and 4b changes to the lower stable position.
  • bistable element la 1b after merging the two bearing points 4a and 4b in the upper stable Position state over when a corresponding control pulse on the electromagnet 8b acts, so this is excited (and the other electromagnet 8a is de-energized).
  • a significant difference from the embodiment shown in FIG. 1 for the embodiment shown in Fig. 2 is that the elastic Tension energy of the bistable element for changing the Deformation stress states can not be exploited. But it can elastic tensioning of the warp threads can be used in a corresponding manner. Furthermore, the movement sequence described with reference to FIG. 1 can thereby be achieved be that at least when lifting the board 6 during a first Movement phase of the bearings 4a, 4b by actively operating the pusher 2a, 2b apart, while after passing through the dead center again be brought together.
  • FIGS. 1 and 2 in can be modified in many ways in accordance with the inventive concept.
  • a section of the elastically deformable bistable element be magnetostrictive or electrostrictive, so that the action of a magnetic or electric field causes the necessary initial deformation.
  • the Thruster 2a, 2b is not necessarily hydraulic or pneumatic to train.
  • the periodic exertion of the mechanical deformation stress on the bistable element can e.g. B. also by means of a gear or an eccentric driven shaft can be effected.
  • bistable element is stationary at least at two points but can be rotated to store.
  • the locking element 9 can alternatively each of the two ends of the Lock bistable element 1 separately and independently.
  • the Unlocking element 11 can of course also mechanically in a classic manner be controllable.
  • the embodiment is the initial device 8 as a hydraulic or pneumatic piston educated.
  • the initial device 8 causes a slight initial deflection that bistable element 1 as shown in Fig. 3B, towards the lowered one Positional state or as shown in FIG. 3D, in the direction of the raised Can deform the state of the situation.
  • the deformation force required here can be minimal be. It is only required that the subsequent action of the mechanical deformation stress, which means in the illustrated embodiment the hydraulic or pneumatic thruster 2a, 2b is generated, the bistable element, i. H. the rod 1, in one clearly by the initial deflection certain situation.
  • Fig. 4 shows a cascade arrangement of the invention Board control devices 13 - 1 to 13 - 5.
  • several (in the exemplary embodiment shown five) circuit boards 6 - 1 to 6 - 5 are provided, engage in the different warp threads 12 in each case.
  • the assigned Board control devices 13-1 to 13-5 are arranged one above the other.
  • the individual Board control devices 13-1 through 13-5 operate as shown in FIGS. 3A through 3E explained. However, the individual control devices 13 - 1 to 13 - 5 can also how be explained with reference to FIGS. 1 and 2.
  • the single ones Board control devices 13 - 1 to 13 - 5 operate as shown in FIGS. 1 and 2 and 3A to 3E explained.
  • the weaving machine in FIG. 4 arrangement shown can be repeated any number of times to each to be able to control individual warp threads individually.
  • interrupting Lines are the lower stable position of the bistable elements 1 - 1 to 1 - 5 and the lowered state of the sinkers 6 - 1 to 6 - 5 and the warp threads 12 shown. When all the warp threads 12 in the raised or lowered State, the shed 14 is formed between them.
  • FIG. 5 shows a further exemplary embodiment of the invention Board control device.
  • the circuit board 6 is not directly with the bistable element 1, but by means of a lever device 22 which is rotatably mounted at a point 23, with the bistable element, here again a rod 1, non-positively connected.
  • the bistable element here again a rod 1, non-positively connected.
  • the one on the rod 1 mechanical deformation stress acting on a driven one Shaft 20 seated eccentric 21 performed periodically. The eccentric 21 opposite end of the rod 1 is clamped in place.
  • a respective one of the two stable position states of the rod 1 can be reliably selected. Before acting of the eccentric 21 on the rod 1, this undergoes an initial deflection either in Direction to the raised or lowered position.
  • the use of the Lever device 22 in the illustrated embodiment has the advantage that the board stroke or the force for lifting and lowering the board 6 can be varied can.
  • FIG. 6 shows the course over time of the sinker stroke in different operating modes of the jacquard machine according to the invention. It is assumed that after the jacquard machine has been started up, every other board is first raised and the other boards are lowered. Then those blanks are selected which must have the state they have just taken - in FIG. 6 the raised state - in the subsequent weft insertion of the weaving machine. The time course of the position of these boards is shown by a dash-dotted line. The other previously raised boards are lowered during the time period t 1 to t 3 . The weft insertion of the weaving machine can take place within a predetermined time tolerance range around the time t 3 .
  • FIG. 7 A section through a first development of the invention Board drive device is shown in Fig. 7. Furthermore, from the figure to see further essential elements of the proposed jacquard machine. How already explained, the jacquard machine has a mechanically deformable bistable Element 1, which in the illustrated embodiment as an elastically deformable rod is trained. However, the bistable element 1 can also have other configurations, e.g. B. in the form of a leaf spring. There is one for each warp thread 12 of the weaving machine such bistable element 1 is provided, each of which only schematically illustrated circuit board 6 and an eyelet 7 is connected to the warp thread 12. By Deform the bistable element 1 in either the lowered state la or the raised state 1b, the associated warp thread 12 is either lowered or raised to form a suitable shed.
  • the bistable element 1 By Deform the bistable element 1 in either the lowered state la or the raised state 1b, the associated warp thread 12 is either lowered or raised to form a suitable shed.
  • the bistable element 1 is part of a board drive device of the jacquard machine.
  • the board drive device has for deformation of the bistable elements 1 furthermore a tensioning device 31, still to be explained, by means of which the bistable elements 1 with an essentially axially acting elastic Deformation stress are applied.
  • the jacquard machine also has a board detection device 30 to the lowered state la or raised state 1b of the bistable Detect elements separately for each bistable element.
  • the board detector 30 schematically by two Sensor element arrangements 30a, 30a 'and 30b, 30b' formed, for. B. Hall sensors, Piezo elements or the like, shown. If the bistable element in question 1 is in its lowered state shown in full lines, the lie Sensor element parts 30b and 30b 'opposite, so that this state can be detected. The agreement with the sample data can be determined and the Need to be checked. This is especially after one Initialization required. In the same way, the raised state is determined by means of the Sensor element parts 30a and 30a 'detected.
  • the clamping device has for applying the mechanical deformation tension 31 a clamping lever 32.
  • Bearing elements 33 are in the clamping lever 32 Storage of the bistable elements 1 is provided.
  • the jig can either take up several or all of the bistable elements 1 of the jacquard machine, a separate clamping lever 32 is expediently provided for each bistable element 1, the tensioning lever in the width extension, not shown, of Jacquard machine are arranged or can be staggered side by side.
  • the Tension lever 32 is non-positively but positively coupled to a drive shaft 34 and rotatable on an axis 39 arranged concentrically with the drive shaft 34 stored.
  • a corresponding coupling between the clamping lever 32 and the Drive shaft 34 can either be simple by friction or advantageous via a coupling spring, in particular a leaf spring.
  • a coupling spring in particular a leaf spring.
  • An undercut 35 a recess
  • the drive shaft 34 executes an oscillating or rocking movement indicated by the arrow 36 which the clamping lever 32 takes part, if one to be described Locking device is not actuated.
  • this has one in the illustrated development Recess 37 in which the lower end 38 of the clamping lever 32 is freely movable is.
  • the board drive device has a Locking device on to the clamping device - in the illustrated development the clamping lever 32 - to be able to stop when the bistable elements 1 either have reached their raised state 1b or lowered state 1a.
  • FIG. 7 has a particularly simple solution an electromagnet 40 actuatable plunger 41, which the path of movement of Clamping lever 32 blocked at a suitable point.
  • the bistable elements 1 remain thereby in its tensioned state 1a or 1b until the plunger 41 by means of the Electromagnet 40 is removed from the path of movement of the clamping lever 32 and the Tension lever 32 is carried again by the drive shaft 34.
  • the plunger 41 instead of electromagnetic, pneumatic or hydraulic or operated in another suitable manner.
  • a return spring 42 may be provided to push the plunger 41 back.
  • the locking device 8 shows a further development of the locking device.
  • the locking device 8 has a brake lever 51 rotatably mounted on an axis 50.
  • a tension spring 52 is, for example, via a tension spring 52 only shown schematically biased such that the brake lever 51 via a brake shoe 53 to Stopping the clamping lever 32 exerts sufficient force on the same.
  • a suitable brake booster is achieved for brake lever 51.
  • Around the cocking lever To release 32 after completing the locking process is a suitable one Device for lifting the brake lever 51 required. This is in the 8, a camshaft 54 is provided which rotates about an axis 55 rotates, synchronously with the rocking movement.
  • the cam 56 of the camshaft 54 raises the brake lever 51 to release the tension lever 32 so far that the brake shoe 53 is brought out of engagement with the clamping lever 32.
  • To hold the brake lever A corresponding holding device is required in the raised position.
  • This can be implemented in a simple manner by an electromagnet 57 which with one arranged on the opposite side of the brake lever 51 Permanent magnets 58 can cooperate to hold the loosened energy Allow (vented) brake lever 51 in this position.
  • "offering" e.g. B.
  • a wear-resistant material is preferably included for the brake shoe 53 to provide a high coefficient of friction.
  • the brake shoe 53 can either, as in the training shown, on the underside of the brake lever 51 or on the Be attached to the top of the clamping lever 32. It can also be a sawtooth Engagement arrangement can be provided with a brake shoe cushion, like this is indicated schematically in Figure 8 on the corresponding surface of the clamping lever 32.
  • FIG. 9 The development shown in FIG. 9 largely corresponds to that described above 7 explained further development. 8 are in the training 9 two brake shoes 53a and 53b arranged one behind the other.
  • the brake shoes designed as spherical segments can be correspondingly Depress recesses 59a and 59b so that they can be installed quickly and easily of these wearing parts is guaranteed. Thanks to the secure fit of the brake shoes 53a and 53b, shearing thereof becomes large during operation of the device avoided.
  • FIGS. 10 to 13 to be described below differ from the training described above in that a further embodiment of the locking device designed as a shoe brake Toggle lever 60 is used.
  • the tensioning device 31 shown in FIG. 10 has the one already based on FIGS 9 described elements, namely a clamping lever 32, bearings 33 for the bistable elements 1 and a rocking drive shaft 34. Reference is therefore made to the above description.
  • the toggle lever 60 consists of the toggle elements 60a and 60b, the lower one Toggle element 60b elastic, e.g. B. can be designed as a U-shaped leaf spring.
  • the toggle lever elements 60a and 60b are rotatable relative to one another in the bearing element 60c stored.
  • the upper toggle element 60a is engaged with the brake lever 51 and is also pivotally connected to it via the bearing element 61.
  • Of the Brake lever 51 is in turn pivotally mounted on the axis 50 and acts on the Brake shoe 53 on the clamping lever 32 of the clamping device. 10 shown state of the locking device with the toggle lever 60 extended (more unstable State) acts on the brake lever 51 and the brake shoe 53, a braking force Clamping lever 32, which stops it.
  • the toggle lever 60 is angled (stable state) and lifts the brake shoe 53 via the brake lever 51 to such an extent that the clamping lever 32 is released.
  • the clamping lever 32 is thus in the released state according to FIG. 11 as described above carried by the drive shaft 34 and performs the The rocking movement described above from what is interrupted in FIG Lines are indicated.
  • a toggle drive shaft 62 provided that a synchronous to the rocking movement of the drive shaft 34 rocking movement executes.
  • the rocking movement of the toggle lever drive shaft 62 the toggle lever 60 in any case from its angled one shown in FIG State transferred to the stretched state shown in FIG. 10. If he Toggle lever 60 reversed from the stretched state shown in Fig. 10 in the in Fig. 11 shown is transferred depends on whether an Holding device 70 is activated. The toggle lever 60 is held by the holding device 70 held in its stretched state as long as the tensioning lever 32 is stopped is required.
  • To release the clamping lever 32 is by deactivating the Holding device 70 of the toggle lever 60 released so that the brake shoe 53 of the Brake lever 51 disengages from the tensioning lever 32.
  • the holding device 70 must exert a sufficiently high holding force on the toggle lever 60 so that the Deformation of the lower one, which is elastically formed in the illustrated further development Toggle element 60b during the rocking movement of the toggle drive shaft 62 cannot release the toggle lever 60.
  • the holding device 70 can, according to the development according to FIGS. 10 and 11 be designed in a simple manner as an electromagnet 71.
  • FIG. 12 and 13 Another development of the holding device for the toggle lever 60 is shown in FIG. 12 and 13.
  • the development according to FIGS. 12 and 13 is with the above 10 and 11 described further development largely identical, so that a detailed description can be dispensed with.
  • Fixing the Toggle lever 60 in the stretched state shown in FIG. 12 is in this Training achieved in that the toggle lever 60 is slightly stretched and thus is set in this state.
  • a corresponding setting could alternatively also can be realized by a snap mechanism.
  • To release the toggle lever 60 points the holding device 70 in the illustrated embodiment by one Electromagnet 72 actuated plunger 73, which when actuated against the toggle lever Presses 60 and releases it.
  • the actuation of the plunger 73 could of course done pneumatically or hydraulically in the same way.
  • an electromagnet interact with a permanent magnet.
  • the movement of the toggle lever drive shaft 62 during the rocking movement of the The toggle lever drive shaft 62 with the toggle lever 60 fixed in the extended position is in 10 and 12 indicated by broken lines.
  • Driver 63 on the toggle lever drive shaft 62 can be a permanent magnet 64 be provided, which the cooperating lower toggle element 60b of the holding device 70 securely during the rocking movement of the toggle lever drive shaft 62 lifts off when the holding device is not used to hold the toggle lever 60 in the extended position State is controlled.
  • the driver 63 adjusts during the rocking movement "Offer" the knee lever to the holding device 70 safely.
  • the board drive device described above is suitable, as can be seen, excellent for driving a jacquard machine based on the principle of FIGS. 1 to 6 is working. It can also be provided on both sides at both ends of the bistable element 1 be. Furthermore, instead of electromagnetic components, other controllable components, e.g. B. piezo elements may be provided. The control function is essential.
  • the jacquard machine can also be used as a quasi-closed-pocket jacquard machine work.
  • the circuit boards that do not have their status remain Switching does not have to be in the raised or lowered state, but rather lowered or raised until the neutral position of the bistable Element is approximately reached. However, there remains some deflection in Direction to the situation previously assumed. Those boards that are yours Should change state, but exceed the neutral state of the bistable Elementes and get a slight deflection towards the other stable state of the bistable element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP94930182A 1993-10-19 1994-10-17 Jacquardmaschine Expired - Lifetime EP0723605B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19934335620 DE4335620A1 (de) 1993-10-19 1993-10-19 Jaquardmaschine
DE4335620 1993-10-19
DE4429765 1994-08-22
DE4429765A DE4429765A1 (de) 1993-10-19 1994-08-22 Platinenantriebseinrichtung für Jacquardmaschine
PCT/EP1994/003417 WO1995011327A1 (de) 1993-10-19 1994-10-17 Jacquardmaschine

Publications (2)

Publication Number Publication Date
EP0723605A1 EP0723605A1 (de) 1996-07-31
EP0723605B1 true EP0723605B1 (de) 1999-08-18

Family

ID=25930525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94930182A Expired - Lifetime EP0723605B1 (de) 1993-10-19 1994-10-17 Jacquardmaschine

Country Status (6)

Country Link
US (1) US5794665A (zh)
EP (1) EP0723605B1 (zh)
CN (1) CN1046323C (zh)
CZ (1) CZ287016B6 (zh)
DE (2) DE4429765A1 (zh)
WO (1) WO1995011327A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185475B1 (en) * 1998-07-14 2001-02-06 Sumagh Textile Company Limited Method for manufacturing jacquard with colored image
BE1016559A4 (nl) * 2005-03-21 2007-01-09 Wiele Michel Van De Nv Jacquardinrichting.
CN100350087C (zh) * 2006-05-11 2007-11-21 李加林 一种具有不同特质的彩色提花织物的制作方法
ATE479786T1 (de) * 2007-03-27 2010-09-15 Textilma Ag Vorrichtung zur steuerung der querbewegung der kettfäden einer textilwebmaschine
DE102010026609B3 (de) * 2010-07-09 2011-11-17 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren und Vorrichtung zur Webmusterbildung bei Geweben mit Zusatzschusseffekten
DE102010034969B3 (de) 2010-08-20 2011-11-03 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Webblatt und Webmaschine zur Webmusterbildung bei Geweben mit Zusatzmustereffekten
BE1019710A3 (nl) * 2010-12-21 2012-10-02 Wiele Michel Van De Nv Gaapvormingsinrichting voor een weefmachine.
CN102634901B (zh) * 2012-04-19 2013-08-07 浙江理工大学 无通丝积极式选针机构
DE202013100677U1 (de) * 2013-02-14 2014-05-21 GITEC Grosse Internationale Technologie GmbH Stellvorrichtung
CN104032437A (zh) * 2014-06-30 2014-09-10 徐心亿 一种提花机的控制装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE515910C (de) * 1931-01-15 Mueller Fritz Harnischlose Jacquardmaschine
DE2119053B2 (de) * 1971-04-20 1973-10-04 Peter Dipl.-Kfm. 8000 Muenchen Doehler Einrichtung zur Fachbildung an Webstühlen
CH552691A (de) * 1972-05-19 1974-08-15 Sulzer Ag Jacquardmaschine.
CH552088A (de) * 1972-05-19 1974-07-31 Sulzer Ag Jacquardmaschine.
SE396098B (sv) * 1973-03-05 1977-09-05 Lauritzen William Eger Nyboe Anordning for mekanisk manovrering av trad- eller garnstyrningsorgan
CH668783A5 (de) * 1985-09-05 1989-01-31 Vnii Legkogo I Textilnogo Schaftmaschine fuer webmaschinen.
DE3639199A1 (de) * 1986-11-15 1988-06-01 Schleicher Oskar Fa Vorrichtung zur phasenverschiebung des einlesezeitpunktes der platinen von fachbildemaschinen, insbesondere jacquardmaschinen
IT1216766B (it) * 1988-02-15 1990-03-08 Bobbio Benedetto Macchina di armatura a doppia levata, provvista di dispositivi perfezionati per il movimento degli arpini.
JPH0694619B2 (ja) * 1988-10-05 1994-11-24 ワツクデータサービス株式会社 編機用選針装置
FR2690695A1 (fr) * 1992-04-30 1993-11-05 Staubli Verdol Boîtier étanche pour l'électro-aimant d'un dispositif pour la formation de la foule d'un métier à tisser.
GB2273719A (en) * 1992-12-24 1994-06-29 Bonas Machine Co Heald control system

Also Published As

Publication number Publication date
EP0723605A1 (de) 1996-07-31
DE4429765A1 (de) 1996-02-29
DE59408644D1 (en) 1999-09-23
WO1995011327A1 (de) 1995-04-27
CN1133621A (zh) 1996-10-16
CZ110296A3 (en) 1997-03-12
CZ287016B6 (en) 2000-08-16
US5794665A (en) 1998-08-18
CN1046323C (zh) 1999-11-10

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