EP2141271B1 - Métier à tricoter rectiligne avec dispositif d'étirage de tricot - Google Patents

Métier à tricoter rectiligne avec dispositif d'étirage de tricot Download PDF

Info

Publication number
EP2141271B1
EP2141271B1 EP20080011824 EP08011824A EP2141271B1 EP 2141271 B1 EP2141271 B1 EP 2141271B1 EP 20080011824 EP20080011824 EP 20080011824 EP 08011824 A EP08011824 A EP 08011824A EP 2141271 B1 EP2141271 B1 EP 2141271B1
Authority
EP
European Patent Office
Prior art keywords
take
elements
knitted fabric
knitting machine
members
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 - Fee Related
Application number
EP20080011824
Other languages
German (de)
English (en)
Other versions
EP2141271A1 (fr
Inventor
Dieter Hartnagel
Albert Kimmerle
Winfried Kapitel
Michael Sedlag
Rolf Walz
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.)
H Stoll GmbH and Co KG
Original Assignee
H Stoll 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 H Stoll GmbH and Co KG filed Critical H Stoll GmbH and Co KG
Priority to EP20080011824 priority Critical patent/EP2141271B1/fr
Priority to CN2009101512754A priority patent/CN101619519B/zh
Publication of EP2141271A1 publication Critical patent/EP2141271A1/fr
Application granted granted Critical
Publication of EP2141271B1 publication Critical patent/EP2141271B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/88—Take-up or draw-off devices for knitting products
    • D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines

Definitions

  • the invention relates to a flat knitting machine with knitted fabric removal apparatus having a plurality of front, arranged below the front needle bed extraction organs and a plurality of rear, arranged below the rear needle bed exhaust organs, the front and rear take-off organs are arranged on both sides of the trigger gap for the fabric in pairs opposite each other and the fabric between the front and rear trigger members frictionally clamped and peeled off by this.
  • the EP 0 523 662 B1 describes a trigger device with opposing grippers, which clamp the fabric frictionally between them and peel off.
  • the arranged under the rear needle bed gripper are attached to an angle bar and perform by this their pivotal movements together.
  • the grippers are individually pivotable. However, the movement of the gripper pivoted away from the fabric into its starting take-off position is common on both sides of the fabric over the entire length of the needle bed, so that the grippers are unable to exert a spreading action on the fabric. If a spreading action is to be exerted on the fabric, an additional clamping device for the fabric must be provided in this solution for the extraction device.
  • the present invention has for its object to provide a knit removal device of a flat knitting machine, which deducts the fabric safely and gently with the required for the stitch to be formed withdrawal force.
  • the object is achieved by a flat knitting machine with a fabric draw-off device with a plurality of front, arranged below the front needle bed exhaust organs and a plurality of rear, arranged below the rear needle bed exhaust organs, the front and the rear trigger members are arranged on both sides of the trigger gap for the fabric in pairs opposite one another and the knitted fabric between the front and rear exhaust members frictionally clamped and peelable by this, each of the trigger members against the fabric with an adjustable force can be applied and moved away from this, which is characterized in that each deduction process in and against the withdrawal direction of the knitted fabric is individually controlled movable, wherein the control of the movements of the individual take-off members in response to the control of the needle movement of the knitting machine takes place.
  • the extraction device is arranged immediately below the needle beds, so that the fabric can be detected and pulled as close as possible to the stitch formation area.
  • the trigger arms of the trigger pull the knit frictionally between them and pull it off. This means that there is no roughening of the surface of the knitted piece.
  • the gripping surfaces of the trigger members can be made of a corresponding material, for example a rubber-like material, to optimize the frictional engagement and / or have a suitable surface structure. Characterized in that the control of the movements of the withdrawal organs in dependence from the control of the needle movements, it can be ensured that for each stitch course or courses to be formed the optimal peel force is exerted on the fabric, ie neither too much nor too little tension is exerted on the fabric during the formation of the stitches.
  • each of the trigger members can be moved by a predeterminable distance in the withdrawal direction, be durable in this position a predetermined period of time and then be moved back into a start-trigger position.
  • the length of the distance in relation to the mesh length determines the withdrawal force.
  • the period of time in which the extraction members remain in the lowest position must be sufficient to allow the withdrawal force to act until the stitch formation is completed safely. Subsequently, the trigger members can be moved back up to again exert a trigger force on the fabric can.
  • the trigger device can then simultaneously develop a spreading effect on the fabric, ie the fabric is over its entire width constantly from the trigger device recorded so that the withdrawal forces act equally in all places.
  • front and rear extraction members are slidably mounted in grooves of front and rear guide beds in and against the withdrawal direction and against the fabric and away from it.
  • the guide through the grooves allows a very precise and controlled movement of the individual trigger elements. These can also be moved to several parallel to each other, which always run individual groups of trigger organs synchronous movements.
  • the movements of the trigger members by means of control curves, engage in the arranged on the trigger members feet.
  • the cams can not only control the linear movement of the trigger members in and against the withdrawal direction, but also the movement of the trigger members on the fabric to and from the fabric away.
  • the movement of the cams over the guide beds can advantageously be coupled with the movements of the knitting cam which controls the needle movement.
  • a number of juxtaposed upper and a number of juxtaposed lower front and rear take-off members may be provided, wherein the upper and lower take-off members are arranged alternately in the longitudinal direction of the needle beds.
  • the front and rear extractors are thus divided into upper and lower exhaust organs, which alternate in each case. This opens up further possibilities for varying the initiation and exertion of pull-off forces on the knitted fabric.
  • the gripping surfaces of the upper and lower take-off members are shaped such that the two rows of upper and lower take-off members each form almost closed, strip-shaped overall gripping surfaces. In this way it is ensured that uniform take-off ratios can be produced directly below the stitch formation area over the entire length of the needle beds.
  • the division into upper and lower trigger members offers particular advantages when first the upper trigger members are moved to their start trigger position before the lower trigger members are moved to their start-trigger position, so that the fabric is constantly clamped between the front and rear trigger members. This means that the fabric remains captured by the trigger during its entire production.
  • the trigger device can also fulfill a spreading function for the knitted fabric.
  • the safe operation of the trigger device can be increased by the fact that the linear and / or pivoting movements of the trigger members are limited. Malfunction and the exertion of excessive forces on the fabric are thereby excluded. Another measure in this direction is the provision of a fixation of the trigger members at least in their reached after the withdrawal movement withdrawal position. This can prevent that the trigger members during the deduction unintentionally move upwards and thereby reduce the pull-off force.
  • the invention also relates to a method for removing a knit fabric on a flat knitting machine in which the fabric is frictionally clamped and withdrawn below the needle beds of the knitting machine between the front and rear withdrawal members, wherein the pressure force of the trigger members adjusted according to the quality of the knitted fabric and each of the trigger members in and separately against the take-off direction of the knitted fabric and moved in response to the control of the needle movement of the knitting machine. It is advantageous if the fabric is kept constantly clamped between the front and rear exhaust members. This keeps the knitwear wide throughout its production.
  • a withdrawal device 1 can be seen, which is formed symmetrically to a median plane 100 between the front needle bed 200 and the rear needle bed 201.
  • the withdrawal device 1 is located relatively close below an intersection point 101 (needle cross), which form the undersides of the needles 300, 301 mounted in the two needle beds 200, 201 with each other.
  • the withdrawal device 1 has at least the length of the needle beds 200, 201.
  • a front guide bed 2 and below the rear needle bed 201 a rear guide bed 3 is arranged below the front needle bed 200 .
  • 3 grooves 21, 31 are incorporated over the entire length with the same width and depth and at the same distance from each other.
  • the grooves 21 of the front guide bed 2 and the grooves 31 of the rear guide bed 3 are each in pairs opposite.
  • alternately upper take-off members 4, 4 'and lower take-off members 5, 5' are arranged, wherein in the respective correspondence grooves of the guide beds 2, 3 the same type of take-off members is arranged.
  • an upper take-off member 4 of the front guide bed 2 is an upper take-off member 4 'of the rear guide bed 3 opposite.
  • Fig. 1 Section shown extends through the guide beds 2, 3, that in the front guide bed 2 can be seen in a groove 21 in which an upper trigger member 4 is longitudinally movably and pivotally guided.
  • a lower trigger member 5 ' is mounted longitudinally movable and pivotable.
  • round rods 22, 32 are mounted, of elongated holes 41, 51 of the upper and lower take-off members 4, 5; 4 ', 5' are encompassed.
  • the trigger members 4, 5; 4 ', 5' fixed in the grooves 21, 31.
  • the round rods 22, 32 form the axes for the pivoting movements of the take-off members 4, 5; 4 ', 5' and at the same time a mechanical limitation of their displacement along the grooves 21, 31.
  • the uppermost position of the trigger members 4, 5; 4 ', 5' is reached when their slots 41, 51 abut with their surfaces 42, 52 on the round bars 22, 32.
  • the deduction organs 4, 5; 4 ', 5' each have joint discs 44, 54, on which gripping pieces 6, 6 'are fixed in such a way that they can perform pivoting movements around the circumference of the joint discs 44, 54, so that the gripping surfaces 61, 61' of the gripping pieces 6, 6 'At all the thicknesses of the knit piece 400 come to this over the entire surface to the plant.
  • the pivoting movements of the gripping piece 6 of the upper trigger slide 4, 4 ' are limited by the abutment of the gripping piece edges 62, 63 on the surfaces 45, 46 of the take-off members 4, 4'.
  • the pivoting movements of the gripping pieces 6' in the lower take-off members 5, 5 ', the pivoting movements of the gripping pieces 6' by the system of Greif Divisionkanten 62 ', 63' on the surfaces 55, 56 of the take-off members 5, 5 'limited.
  • the gripping surfaces 61, 61 'of the gripping pieces 6, 6' have a high coefficient of friction due to their surface design and / or their material.
  • the take-off members 4, 5 of the front guide bed 2 can perform movements according to the arrow symbol 150 and the trigger members 4 ', 5' of the rear guide bed 3 according to the arrow symbol 150 '.
  • the arrow U indicates the movement to the intersection point 101 (needle cross) and the arrow D the movement away from the needle cross 101.
  • the arrow S symbolizes the pivoting movement for closing the gripping pieces 6 and the arrow O the pivoting movement for opening the gripping pieces 6.
  • the movement in the direction of the arrow S is effected by the force of bending springs 7, which act on the legs 47, 57 of the take-off members 4, 5 with their top surface 70.
  • the movement in the direction of the arrow S is effected in an analogous manner by means of bending springs 8, which act on the legs 47, 57 of the take-off members 4 ', 5' with their head surface 80.
  • the bending springs 7, 8 are each secured to shafts 9, 10.
  • the shafts 9, 10 are rotatably mounted in bearing pieces, not shown, which are advantageously connected to the guide beds 2, 3.
  • the bending springs 7, 8 not only cause a pivoting movement of the trigger members 4, 5; 4 ', 5' in the direction of arrows S on the fabric 400, so that the gripping pieces 6, 6 'come to rest on the fabric 400, but they also determine the force with which the gripping pieces 6, 6' press on the fabric 400 , From this force, in turn, depends on the frictional force acting between the gripping surfaces 61 and the fabric 400 when opposing withdrawal means 4, 5; 4 ', 5' move together in the withdrawal direction D. From this frictional force, in turn, the withdrawal force, which introduces the force acting in the direction of arrow A clamping force in the fabric 400, so that a continuous and uniform mesh formation can take place.
  • the legs 47, 57 of the take-off members 4, 5 are advantageously designed such that the force of the torsion springs 7, 8 in each height position of the trigger members 4, 5 changed so that the gripping pieces 6, 6 'in each height position of the trigger members 4, the fifth Press against the fabric 400 with the same force.
  • each knit fabric Since knits can be formed of different materials and in different types of weaving, the manufacture of each knit fabric requires a peel force specific to each fabric section, advantageously for each knit series to be formed or at least for the knitting ranks formed during movement of the sled over the fabric width , should be adjustable.
  • a change in the withdrawal force is achieved, for example, by the pressure force of the withdrawal members 4, 5; 4 ', 5' is changed. In the example shown, this can be effected by rotation of the shafts 9, 10 in the opposite direction by the same angle of rotation.
  • a stop bar 11 On the side and over the length of the grooved portion of the front guide bed 2, a stop bar 11 and in a similar manner to the rear guide bed 3, a stop bar 12 is attached. At these stop strips 11, 12, the legs 47, 57 of the lower and upper take-off members 4, 5; 4 ', 5' to the plant when their gripping surfaces 61, 61 'have reached at least the area of the center plane 100. As a result, the center plane 100 next position of the trigger members 4, 5; 4 ', 5' mechanically limited. This type of limitation is merely exemplary.
  • the movement of the front extraction elements 4, 5 in the front guide bed 2 in the withdrawal direction D is effected by acting on feet 48, 58 of the take-off members 4, 5 by a control cam KD1.
  • the rear take-off elements 4 ', 5' in the rear guide bed 3 are moved in the withdrawal direction D by acting on feet 48, 58 by means of a control cam KD2.
  • the cams KD1, KD2 can be switched so that they either act on the feet 48, 58 or not act on them.
  • the cams KD1, KD2 can be adjusted in the vertical direction, so that the trigger members 4,5; 4 ', 5' can be moved to any position within its vertical range of motion.
  • the trigger members 4, 5; 4 ', 5' but at least the trigger members 5, 5 'in the respective height position, in which they were brought by the control cams KD1, KD2, as long as fixed, until over other cams, a movement in the opposite direction is introduced into it.
  • the type of fixation is not shown here.
  • the movement of the front trigger members 4, 5 in the direction of the arrow U against the withdrawal direction D is by the admission of their Feet 48, 58 effected by a control cam KU1.
  • a control cam KU1 In the rear take-off members 4 ', 5' this is effected by a control cam KU2.
  • the cams KU 1, KU 2 can be designed so that the trigger members 4, 5; 4 ', 5' through them always in the starting trigger position, ie their highest position in which they are the needle cross 101 closest to be moved.
  • the feet 58 are acted upon by the control curves KU1, KU2 in order to bring the lower take-off members 5, 5 'up into the start-trigger position.
  • the knitted fabric 400 always remains tensioned by the draw-off device 1 and is held wide by it.
  • control cams here the cams KS1, KS2 for the upper take-off members 4, 4 'and the cams KS3, KS4 for the lower take-off members 5, 5'.
  • the control cams KS1, KS2, KS3, KS4 each solve a movement of the take-off members 4, 5; 4 ', 5' away from the knit 400, d. H. in the direction of arrow O, off.
  • the cams KS1, KS2, KS3, KS4 act on second feet 49, 59 of the trigger members 4, 5; 4 ', 5'.
  • the pivoting movements of the trigger members 4, 5; 4 ', 5' are each introduced before the trigger members 4, 5; 4 ', 5' are moved to their uppermost position.
  • the cams KS1, KS2, KS3, KS4 can be switched in a preferred embodiment between an active position in which they act on the feet 49, 59 of the trigger members, and a passive position.
  • the front upper take-off members 4 move together with the upper rear take-off members 4 'located opposite them in the withdrawal direction D and counter to the withdrawal direction U.
  • the front and rear lower take-off members 5, 5' are normally moved synchronously.
  • the upper and lower take-off members 4, 5; 4 ', 5' only one guide bed 2, 3 to move in the withdrawal direction D on the cams KD1, KD2.
  • one of the switchable control curves KH1 or KH2 be brought into operation.
  • the cams KD1, KU1, KH1, KS1, KS3 move across the front guide bed 2 in synchronism with each knitting system causing movement of the needles 300 of the front needle bed 200.
  • the control cams KD2, KU2, KH2, KS2, KS4 move along the rear guide bed 3 of the fume cupboard 1 in synchronism with each knitting system causing the movement of the needles 301 of the rear needle bed 201.
  • Deduction device 1 shown is a preferred embodiment of a take-off device according to the invention. But it is also conceivable, for example, that the upper and lower take-off members 4, 5 only one guide bed 2, 3 to push the fabric 400 to a running over the entire length of the Nadelraumin slide bar and bring through their controlled withdrawal movements in the knitted fabric necessary for the stitch formation clamping force ,
  • Fig. 2 is a plan view of a portion of the rear guide bed 3 from the center plane 100 of the knitting machine ( Fig. 1 ) seen from.
  • the trigger members 4 ', 5' are in their uppermost position. It can be seen the introduced into the guide bed 3 grooves 31, which preferably all have the same distance from each other. In the grooves 31 lower take-off members 5 'and upper take-off members 4' are longitudinally movable and pivotally mounted in a continuous change.
  • the trigger members 4 ', 5' carry gripping pieces 6, 6 ', which can perform a limited pivoting movement in relation to their vertical position.
  • the gripping pieces 6, 6 ' are shaped such that their gripping surfaces 61, 61' add up to an overall closed strip-shaped gripping surface 600 ', which is as long as the needle space length NRL and has a certain functional height FH.
  • the mutual distances of the individual gripping surfaces 61, 61 ' should be limited to the technologically required level.
  • the height of the overlap HU is determined by technical requirements.
  • the upper take-off members 4, 4 'with their adjacent lower take-off members 5, 5' form a functional unit, which is referred to below as the reference numeral 50 for the front take-off members and the reference numeral 50 'for the rear take-off members.
  • the extraction device 1 lie on the front of the knitted fabric 400 ( Fig. 1 ) the total withdrawal surface 600 formed from the individual gripping surfaces 61, 61 'of the withdrawal members 4, 5 of the front guide bed 2 (FIG. Fig. 1 ) and at the back of the fabric 400 from the individual gripping surfaces 61, 61 'of the rear take-off elements 4', 5 'of the rear guide bed 3
  • the total withdrawal surface 600 formed from the individual gripping surfaces 61, 61 'of the withdrawal members 4, 5 of the front guide bed 2 (FIG. Fig. 1 ) and at the back of the fabric 400 from the individual gripping surfaces 61, 61 'of the rear take-off elements 4', 5 'of the rear guide bed 3
  • the withdrawal device 1 exerts an excellent spreading effect on the knitted fabric. This favors the knitting conditions mainly in the edge region of the knitted fabric.
  • the predetermined tensioning force is introduced through the draw-off device 1 into the stitches of the needles which do not currently form stitches. The stitches of the needles forming stitches are peeled off, and the predetermined tension force is introduced for each stitch course to be formed.
  • the Fig. 3 - 7 show in one of the Fig. 1 Corresponding sectional view of the operation of the trigger device 1.
  • the trigger device 1 provides for knits that are produced in one system, the possibility that acts for each knitting a predetermined withdrawal force. For knitted fabrics made with multiple knitting systems, all knitting lines created by the movement of the sled across the knitting width have the same given withdrawal force. It is, however, brought to individual effect for each knitting series.
  • the movements of the trigger members 4, 5; 4 ', 5' and in particular the withdrawal function units 50, 50 ' take place in dependence on the needle movements. Since the needle movements are initiated by knitting locks and the movements of the withdrawal function units 50, 50 'by control cams, work these cams in dependence and synchronous to the knitting locks.
  • a cam arrangement on the trigger device 1 is required.
  • the withdrawal process is dynamic.
  • the functional units 50, 50 'exercise movements synchronously with the knitting locks over the entire width of the knitted fabric.
  • Fig. 3 - 7 The sequence of movements of a trigger function unit 50 in the front guide bed 2 and the opposite trigger function unit 50 'in the rear guide bed 3 is now shown and described.
  • Fig. 4 the trigger units 50, 50 'are in their lowermost position. This position is an extreme position and can only be taken on very coarse pitched knit fabrics and special throw-off lines. In other crocheted ends the movement of the trigger members 4, 5; 4 ', 5' already above.
  • a special pull-off force can be specified for each stitch row before the beginning of each stitch row.
  • a withdrawal force can be predetermined before the beginning of the first course, which is constant for all courses that are formed in the same slide pass, but is initiated individually for each of the rows of knits.
  • the specification of the withdrawal force is effected as follows: Before the withdrawal function units 50, 50 'carry out their joint movement in withdrawal direction D, the pressure force is applied to the gripping pieces 6, 6', which is necessary to reduce the frictional force between the gripping surfaces 61, 61 '. and to achieve the fabric 400, which corresponds to the predetermined withdrawal force. As a result of this pull-off force, the tension force acting in the direction of the arrow A is generated in the knitted fabric 400, which is necessary for optimum stitch formation. Before each new slide passage, the pull-off force can be increased or decreased by turning the shafts 9, 10 and thus optimally adapted to the pattern of the knitted fabric.
  • the travel distance of the take-off function units 50, 50 ' corresponds to the length of the stitch formed in the current stitching operation, plus an overpath that depends primarily on the type of weave of the knitted fabric and the material of the knitting yarn.
  • the distance of movement of the withdrawal function units 50, 50 ' can also be shorter than in the normal case. This is one way to reduce the tension in the fabric 400 for each stitching operation.
  • the movement of the extraction units 50, 50 'in the direction of the arrows D begins as soon as the stitches of the instant stitch formation process are formed to their desired size, and ends at the latest when the needles with the stitches of the course formed in this stitch formation process are again in their home position ,
  • Fig. 5 shows the deduction organs 4, 5; 4 ', 5' in the same height position as in Fig. 4 ,
  • the upper take-off elements 4, 4 ' lead around the round bars 22 and 32, respectively, from a pivoting movement in the direction of the arrows O.
  • the gripping pieces 6 of the take-off members 4, 4 ' are lifted off the fabric 400.
  • the clamping force in the fabric 400 is now held only by the gripping pieces 6 'of the lower take-off members 5, 5'.
  • the upper trigger slides 4, 4' are brought in the direction of arrows U in their uppermost position.
  • the feet 49 of the upper take-off members 4, 4 ' are acted upon by the control cams KS1, KS2.
  • the opening movement and the subsequent movement of the upper take-off members 4, 4 'in their uppermost position begin at the earliest when the needles, which have formed stitches in this stitch forming operation, are again in their basic position.
  • Fig. 6 shows the upper take-off members 4, 4 'in their uppermost position. However, they have now been moved against the fabric 400 again and press against this with the force generated by the bending springs 7, 8.
  • Fig. 7 are those of the lower and upper deduction organs 4, 5; 4 ', 5' formed withdrawal function units 50, 50 'in the same height position as in Fig. 6 ,
  • the lower take-off members 5, 5 ' acted on their feet 59 by the cams KS3, KS4.
  • the region 400 'of the fabric 400 below the gripping pieces 6 of the upper take-off members 4, 4' is characterized without clamping force. In the knitted area above, however, the necessary for the stitch formation clamping force in the direction of arrow A prevails unabated, which is effected by the upper take-off members 4, 4 '.
  • the lower take-off members 5, 5 ' By the action of their feet 58 by means of the control curves KU1, KU2, the lower take-off members 5, 5 'are brought in their uppermost position in the direction of the arrows U. During this movement, the feet 59 of the lower take-off members 5, 5 'remain loaded by the cams KS3, KS4, ie the lower take-off members 5, 5' remain lifted from the knitted fabric 400. As soon as the lower take-off members 5, 5 'have reached their uppermost position, the bending springs 7, 8 push the take-off members 5, 5' back against the knitted fabric.
  • the withdrawal function units 50, 50' are in the in Fig. 1 described position.
  • the opening movement of the lower take-off members 5, 5 'and their subsequent movement into the uppermost position begin as soon as the upper take-off members 4, 4' are in their uppermost position and rest against the fabric again.
  • Fig. 8 shows a knitting lock 500, wherein in the figure in each case the beginning and the end of the associated movements of the lower and upper take-off members 4, 5; 4 ', 5', as in the Fig. 3 - 7 have been described, are shown.
  • the area NBM between the point N1 and the point N4 denotes the needle movement to form a loop when the knitting cam 500 moves in the direction of arrow V.
  • the area ABM between the points A1, A5 denotes the deduction movement for the stitch formed in this course and for the stitch to be made in the next course.
  • the needles receive a propelling movement by the ejection member 501.
  • the upper take-off members 4, 4 'of the haul-off device 1 a tension force is introduced into the fabric, which is optimal for the stitches to be formed of this course series.
  • the needles have reached their most advanced position and are brought into their return movement by a limit member 502.
  • the needles have been withdrawn by the needle punch 503 in accordance with the size of the loop formed.
  • a propelling movement is initiated by the ejection member 504 in the needles.
  • the withdrawal force is generated by the withdrawal device, which forms the tension in the fabric, which is optimal for the formation of the stitch of the next row of knitting.
  • the trigger units 50, 50 move down to a position which is a predetermined distance from their start trigger position ( Fig. 4 ).
  • the needle is in its home position.
  • the upper take-off members 4, 4 ' are pivoted away from the fabric and moved to their uppermost position. After reaching this position, they are swung back to the fabric ( Fig. 5 . Fig. 6 ).
  • the Fig. 9 - 12 show different knits.
  • the representation corresponds to that in Fig. 3 shown situation.
  • a knitted fabric consisting of a knit surface 400 is shown, which is formed with needles 300, 301 of the front and back needle bed 200, 201.
  • the simultaneous movement of the front and rear extraction members 4, 5; 4 ', 5' and thus the front and rear extraction function units 50, 50 ' is done by the application of the feet 48, 58 of the take-off members 4, 5; 4 ', 5' by means of the control cams KD1, KD2.
  • a knitted fabric consisting of a knitted surface 400 is shown, which is formed with needles 301 of the rear needle bed 201.
  • the movement of the extraction units 50, 50 ' is identical to that in FIG Fig. 9 shown movement.
  • a knitted surface 400 knitted fabric in Fig. 11 is formed with needles 300 of the front needle bed 200. Again, the movement of the withdrawal function units 50, 50 'is identical to that in FIG Fig. 9 shown movement.
  • the knit consists of a knit surface 400 formed with needles 300 on the front needle bed 200 and a knit surface 401 formed with needles 301 on the back needle bed 201.
  • the feet 48, 58 of the front take-off members 4, 5 are acted upon by the control cams KD1.
  • the rear take-off organs 4 ', 5' must remain in their uppermost position and are held by the application of their feet 48, 58 by means of the control curves KH2 in this position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (14)

  1. Métier à tricoter rectiligne, comprenant un dispositif de tirage de tricot ayant plusieurs organes (4, 5) de tirage avant disposés en dessous de la fonture (201) avant et plusieurs organes (4', 5') de tirage arrière disposés en dessous de la fonture (201) arrière, les organes (4, 5 ; 4', 5') de tirage avant et arrière étant disposés en étant opposés par paire l'un à l'autre des deux côtés de la fente de tirage pour le tricot (400) et le tricot (400) pouvant être serré à frottement entre les organes de tirage avant et arrière et pouvant être tiré par ceux-ci, chacun des organes (4, 5 ; 4', 5') de tirage étant appliqué par une force réglable sur le tricot (400) et pouvant en être éloigné, caractérisé en ce que chaque organe (4, 5 ; 4', 5') de tirage peut être déplacé en étant commandé individuellement dans le sens (D) de tirage du tricot (400) et dans le sens contraire, la commande des mouvements des organes (4, 5; 4', 5') individuels s'effectuant en fonction de la commande du mouvement des aiguilles du métier à tricoter.
  2. Métier à tricoter rectiligne suivant la revendication 1, caractérisé en ce que les mouvements d'une paire d'organes (4, 5 ; 4', 5') de tirage avant et arrière peuvent s'effectuer en synchronisme ou respectivement seulement un organe (4, 5 ; 4', 5') de tirage d'une paire d'organes (4, 5 ; 4', 5') de tirage avant et arrière est mobile.
  3. Métier à tricoter rectiligne suivant la revendication 1 ou 2, caractérisé en ce que chacun des organes (4, 5 ; 4', 5') de tirage est mobile dans le sens (D) de tirage sur une course pouvant être prescrite peut être maintenu en cette position pendant une durée qui peut être prescrite et peut être ramené ensuite dans une position de tirage de départ.
  4. Métier à tricoter rectiligne suivant l'une des revendications précédentes, caractérisé en ce que le dispositif de tirage du tricot s'étend sur toute la longueur des fontures (200, 201).
  5. Métier à tricoter rectiligne suivant l'une des revendications précédentes, caractérisé en ce que les organes (4, 5 ; 4', 5') de tirage avant et arrière peuvent coulisser dans le sens (D) de tirage et dans le sens contraire dans des rainures de plateaux (2, 3) de guidage avant et arrière et sont montés basculant vers le tricot (400) et en s'en éloignant.
  6. Métier à tricoter rectiligne suivant l'une des revendications précédentes, caractérisé en ce que le déplacement des organes (4, 5 ; 4', 5') de tirage s'effectue au moyen de cames (KD1, KD2, KU1, KU2, KH1, KH2, KS1 - KS4) de commande, dans lesquelles pénètrent des pieds (48, 58, 49, 59) disposés sur les organes (4, 5 ; 4', 5') de tirage.
  7. Métier à tricoter rectiligne suivant l'une des revendications précédentes, caractérisé en ce qu'il est prévu une rangée d'organes de tirage avant et arrière supérieurs (4, 4') disposés les uns à côté des autres et inférieurs (5, 5') disposés les uns à côté des autres, les organes (4, 5 ; 4', 5') de tirage supérieurs et inférieurs étant disposés en alternance respectivement dans la direction longitudinale des fontures (200, 201).
  8. Métier à tricoter rectiligne suivant la revendication 7, caractérisé en ce que les surfaces (61, 61') de préhension des organes (4, 5 ; 4', 5') de tirage supérieurs et inférieurs sont formées de manière à ce que les deux rangées d'organes (4, 5 ; 4', 5') de tirage supérieurs et inférieurs forment respectivement des surfaces (600; 600') de préhension presque fermées et en forme de bande.
  9. Métier à tricoter rectiligne suivant la revendication 7 ou 8, caractérisé en ce que d'abord les organes (4, 5 ; 4', 5') de tirage supérieurs peuvent être déplacés pour venir dans leur position de tirage de départ, avant que les organes (5, 5') de tirage inférieurs puissent être déplacés pour venir dans leur position de tirage de départ, de sorte que le tricot (400) est serré constamment entre des organes (4, 5 ; 4', 5') de tirage avant et arrière.
  10. Métier à tricoter rectiligne suivant l'une des revendications précédentes, caractérisé en ce qu'il est prévu des ressorts (7, 8) pour la production de la force d'application des organes (4, 5 ; 4', 5') de tirage sur le tricot (400), la force élastique des ressorts (7, 8) étant réglable.
  11. Métier à tricoter rectiligne suivant l'une des revendications précédentes, caractérisé en ce que les déplacements linéaires et/ou en basculement des organes (4, 5 ; 4', 5') de tirage sont limités.
  12. Métier à tricoter rectiligne suivant l'une des revendications précédentes, caractérisé en ce que les organes (4, 5 ; 4', 5') de tirage peuvent être immobilisés au moins dans leur position de tirage atteinte après le déplacement de tirage.
  13. Procédé de tirage d'un tricot sur un métier à tricoter rectiligne, dans lequel on serre à frottement et on tire le tricot en dessous des fontures du métier à tricoter entre des organes de tirage avant et arrière, la pression d'application des organes de tirage étant réglée en fonction de la qualité du tricot, caractérisé en ce que l'on déplace, de manière commandée individuellement et en fonction de la commande du mouvement des aiguilles du métier à tricoter, chacun des organes de tirage dans le sens de tirage du tricot et dans le sens contraire.
  14. Procédé suivant la revendication 13, caractérisé en ce que l'on maintient le tricot constamment serré entre des organes de tirage avant et arrière.
EP20080011824 2008-07-01 2008-07-01 Métier à tricoter rectiligne avec dispositif d'étirage de tricot Expired - Fee Related EP2141271B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20080011824 EP2141271B1 (fr) 2008-07-01 2008-07-01 Métier à tricoter rectiligne avec dispositif d'étirage de tricot
CN2009101512754A CN101619519B (zh) 2008-07-01 2009-07-01 针织品抽出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080011824 EP2141271B1 (fr) 2008-07-01 2008-07-01 Métier à tricoter rectiligne avec dispositif d'étirage de tricot

Publications (2)

Publication Number Publication Date
EP2141271A1 EP2141271A1 (fr) 2010-01-06
EP2141271B1 true EP2141271B1 (fr) 2011-08-31

Family

ID=39651436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080011824 Expired - Fee Related EP2141271B1 (fr) 2008-07-01 2008-07-01 Métier à tricoter rectiligne avec dispositif d'étirage de tricot

Country Status (2)

Country Link
EP (1) EP2141271B1 (fr)
CN (1) CN101619519B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102787442A (zh) * 2012-09-04 2012-11-21 宁波慈星股份有限公司 一种横机的勾线装置
CN103526448B (zh) * 2013-11-01 2014-12-31 宁波慈星股份有限公司 针织横机中的毛刷支架机构
CN103556381A (zh) * 2013-11-14 2014-02-05 宁波慈星股份有限公司 一种电脑针织横机的起底针板组装工艺
JP6586367B2 (ja) * 2016-01-05 2019-10-02 リンテック株式会社 引出装置および引出方法
CN110923933B (zh) * 2019-12-10 2023-11-28 桐乡市强隆机械有限公司 用于电脑横机的织物下拉装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2803135C2 (de) 1978-01-25 1986-10-09 H. Stoll Gmbh & Co, 7410 Reutlingen Gestrickabzugsvorrichtung für Flachstrickmaschinen
IT1202184B (it) * 1985-09-18 1989-02-02 Emm Emiliana Macch Maglieria Dispositivo per la tesatura verticale del tessuto in una macchina rettilinea automatica per maglieria
JPH05214645A (ja) * 1991-07-18 1993-08-24 Emm Srl フラット編機等の自動編機における生地の垂直方向引っ張り装置
KR100521798B1 (ko) * 1996-11-06 2006-01-12 가부시키가이샤 시마세이키 세이사쿠쇼 횡편기에있어서편지인하장치

Also Published As

Publication number Publication date
CN101619519B (zh) 2011-09-14
CN101619519A (zh) 2010-01-06
EP2141271A1 (fr) 2010-01-06

Similar Documents

Publication Publication Date Title
DE3313554C2 (fr)
EP0424717B1 (fr) Machine à tricoter rectiligne
EP2141271B1 (fr) Métier à tricoter rectiligne avec dispositif d'étirage de tricot
DE3311361A1 (de) Strickmaschine zur herstellung von maschenware
EP2843095A1 (fr) Métier à tricoter rectiligne doté de guide-fils mobiles transversalement par rapport à la planche d'aiguilles
CH615964A5 (fr)
DE4129845A1 (de) Rundstrickmaschine zur herstellung von plueschwaren
EP0857802B1 (fr) Métier à tricoter rectiligne
EP0990724B1 (fr) Dispositif pour pincer et sectionner des fils dans un métier à tricoter
DE2531762C2 (de) Maschenbildende Maschine
DE3917934A1 (de) Flachstrickmaschine
EP1522617B1 (fr) Métier à tricoter rectiligne comprenant au moins une fonture
DE2909963A1 (de) Verfahren zur maschinellen maschenbildung sowie strick- oder wirkmaschine zur ausfuehrung des verfahrens
DE102010017946B4 (de) Schlosssystem für eine Flachstrickmaschine
EP1467010B1 (fr) Métier à tricoter rectiligne avec au moins deux fontures
DE3327416C2 (de) Rundstrickmaschine mit zur Maschenlängenänderung mittels Nocken verstellbaren Schloßteilen
DE3843837C2 (fr)
EP1522618B1 (fr) Platine pour un métier à tricoter rectiligne
EP1347088B1 (fr) Machine à tricoter rectiligne comportant des platines ajustables
DE2347697C2 (de) Fadenwechselvorrichtung für eine Doppelzylinder-Rundstrickmaschine
EP2302118A1 (fr) Procédé et machine à tricoter destinés à la fabrication de marchandises tricotées selon le motif rayure
DE8023724U1 (de) Strickmaschine zur herstellung von rechts/links-gestrickten mit eingelegten futterfaeden
DE3240370C2 (fr)
CH618749A5 (en) Knitting machine
DE2524827C2 (de) Strickmaschine zur Herstellung von Maschenware aus maschenbildenden Fäden, Kettfäden und gegebenenfalls Schußfäden

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100119

17Q First examination report despatched

Effective date: 20100212

AKX Designation fees paid

Designated state(s): DE IT TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: FLAT KNITTING MACHINE WITH KNITTED FABRIC TAKE-DOWN DEVICE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE IT TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008004645

Country of ref document: DE

Effective date: 20111027

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20120601

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008004645

Country of ref document: DE

Effective date: 20120601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20130619

Year of fee payment: 6

Ref country code: TR

Payment date: 20130627

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130813

Year of fee payment: 6

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008004645

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150203

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140701

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008004645

Country of ref document: DE

Effective date: 20150203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140701