EP2034063B1 - Flachstrickmaschine - Google Patents

Flachstrickmaschine Download PDF

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Publication number
EP2034063B1
EP2034063B1 EP20070017432 EP07017432A EP2034063B1 EP 2034063 B1 EP2034063 B1 EP 2034063B1 EP 20070017432 EP20070017432 EP 20070017432 EP 07017432 A EP07017432 A EP 07017432A EP 2034063 B1 EP2034063 B1 EP 2034063B1
Authority
EP
European Patent Office
Prior art keywords
hold
stitch
knitting machine
flat knitting
needle
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
EP20070017432
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2034063A1 (de
Inventor
Gerhard Dipl.-Ing. Götz
Jürgen Dipl.-Ing. Mohr
Sven Dipl.-Ing. Wirth (BA)
Stefan Mayer
Michael Dipl.-Ing. Sedlag
Martin Dipl.-Ing. Wörnle (FH)
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 DE200750005768 priority Critical patent/DE502007005768D1/de
Priority to EP20070017432 priority patent/EP2034063B1/de
Priority to CN2008102128080A priority patent/CN101381923B/zh
Publication of EP2034063A1 publication Critical patent/EP2034063A1/de
Application granted granted Critical
Publication of EP2034063B1 publication Critical patent/EP2034063B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D04B15/06—Sinkers

Definitions

  • the invention relates to a flat knitting machine with at least one needle bed, in which needles are mounted longitudinally displaceable, wherein between the needles immobile mesh images and movable hold-down plates are arranged.
  • Such flat knitting machines are for example from the DE 3935763 A1 and the DE 4102207 A1 known.
  • the hold-down of these flat knitting machines which also cooperate with fixed mesh images, have a fixed pivot point around which the mesh acting on the section of the hold-down plate performs a pivoting movement, which takes the same course during the opening movement of the board and during the closing movement.
  • the mesh acting on the section of these hold-down boards is designed so that it is located in the deepest closed position of the hold-down above the plane defined by the needle bottom and alone or with the opposite hold-down plate closes the comb gap.
  • This configuration of the hold-down can be acted upon with these only as long as the stitch of the needle to which the respective hold-down board belongs, as the needle is in its advancing movement. As soon as the needle starts its retraction movement, the associated hold-down plate must be folded into its outermost opening position, so that a trouble-free thread insertion into the hook of the needle is possible. This means that throughout the retraction movement of the needle through the Hold-down boards no longer influence the stitch formation can be taken.
  • the present invention has for its object to provide a flat knitting machine of the type mentioned in such a way that with the hold-down the already formed mesh of the associated needle can be held down as possible throughout the formation process of a new stitch.
  • the object is achieved with a flat knitting machine according to claim 1.
  • This flat knitting machine is thus characterized by the fact that the closing movement and the opening movement of the hold-down boards no longer run on the same path. This makes it possible to act with the hold-down boards as long as the stitch that is in the hook when Nadelaustrieb until the successor pocket is uliert. In their closed positions, in which the stitch is applied, the tip of the hold-down plate is located below the plane defined by the needle bottoms, whereby the hold-down function over the holddown plates of the known flat knitting machines is significantly extended.
  • the highest security can be achieved if the hold-down boards are designed and movable so that their tip acts on a stitch leg of a stitch located in the hook of the needle during the entire movement of the needle to form the following stitch.
  • the hold-down boards are lockable in an out-of-action position with their tip behind the stitch pattern, it is ensured that they do not automatically move in front of the stitches and thus may interfere with the thread insert.
  • the hold-down boards may comprise at least one spring element which determines the force exerted by the hold-down board on the stitch.
  • the spring element also ensures that there is no yarn breakage, if the held-down stitch experiences, for example, by the Nadelaustrieb a stronger force upwards.
  • the movement of the hold-down boards can be initiated in different ways.
  • the hold-down can be moved by means arranged on the carriage of the flat knitting machine cams.
  • the hold-down boards may be formed in one piece or in several parts.
  • Fig. 1 is a needle bed 1 with a basic bed 2, are fixed in the needle bed webs 3 shown.
  • the needle bed webs 3 form the guide grooves for needles 7 and installation spaces for hold-down plates 4 of a first embodiment.
  • spacers 5 are fixed, which are dimensioned in thickness so that the hold-down plates 4 rest against the needle bed webs 3 largely free of play and can perform pivoting and displacement movements.
  • the knitting area of the needle bed 1 is formed by a stitch pattern segment 6 with openings for the needles 7, the edges 61 of these openings having the function of stitches.
  • Fig. 2 From the sectional view in Fig. 2 1, the stitch forming area of the needle bed 1 with the basic bed 2, a needle bed bar 3, a needle 7, and a hold-down board 4 and the stitch pattern segment 6 are shown. Out Fig. 2 the construction of the hold-down board 4 and its storage in the needle bed becomes clear.
  • the hold-down plate 4 is located in a groove 31 formed by the needle bed webs 3. Through all holding-down plates 4 passes through a first round rod 8, which forms an axis for pivoting movements of the hold-down plates 4. During these movements, the hold-down plate comes with circular-segment-shaped contact surfaces 42 and 43 to rest on the round rod 8. The contact surfaces 42, 43 are fixed by a nose 49 of a web 48 on the round rod 8. The web 48 can move equal to a bending spring when the hold-down plate 4 from the position in which the surface 42 abuts the round rod 8, in the position in which the surface 43 abuts the round rod 8, is moved.
  • a second extending over the entire length of the needle bed round rod 9 is provided, which serves as an abutment for surfaces 44, 45 and an edge 46 of the hold-down 4.
  • the edge 46 rests against the round rod 9, which means that the tip 41 of the hold-down plate 4 has reached its lowest closed position.
  • the edge 46 causes a mechanical limitation of this closed position.
  • the surface 44 comes to rest on the round bar 9 when the tip 41 of the hold-down plate 4 moves back behind the front edge of the stitch pattern 61. This non-operating position of the hold-down board 4 is then fixed by the surface 44.
  • the surface 45 touches the round rod 9 in the outermost opening position of the board 4 when the tip 41 has to move in front of the mesh images 61.
  • the surface 45 also represents the mechanical limit of the outermost opening position.
  • a bar 10 is mounted in the needle bed webs 3, which also extends over the entire length of the needle bed 1. It forms a support surface for an end region 47 'of a bending spring 47 integrated in the hold-down plate 4.
  • the opening movement of the hold-down plate 4 is effected via control cams, not shown, which act on the hold-down plate 4 to control surfaces 50 and 52.
  • the closing movement is partly caused by cams, not shown here, which act on the hold-down plate 4 to control surfaces 51 and 53.
  • the last section of the closing movement into the lowest closing position of the hold-down plate causes the force of the pretensioned bending spring 47, which is supported by its end region 47 'on the strip 10.
  • the dot-dash line 100 indicates the center of the comb gap.
  • the dot-dash line 200 indicates the plane defined by the needle bottom.
  • FIG. 4 shows how the tip 41 of the hold-down board 4 holds down a loop 150 by pushing the stitch foot 151 down.
  • Fig. 3 are different, the Fig. 2 corresponding sectional views showing the hold-down plate 4 in different positions during its opening movement from the lowest closed position to the outermost opening position. This movement preferably takes place when the needle 7 is in its most retracted position.
  • Fig. 3a shows the hold-down board 4 in its lowest closed position.
  • the hold-down plate 4 rests with its surface 42 on the round rod 8 and is fixed by the nose 49 of the web 48 in this position.
  • the board 4 was in the direction of the arrow R as far as the round rod 8 pivoted until its edge 46 came to rest on the rod 9.
  • the lowest closed position of the hold-down plate 4 and thus also its tip 41 is mechanically limited.
  • the hold-down plate 4 From the in Fig. 3a shown lowest closing position, the hold-down plate 4 by a preferably perpendicular to the plane defined by the needle bottom level 200 acting (arrow F1) of its control surface 52 by means not shown control cams in a pivoting movement about the rod 8 in the direction of arrow R '( Fig. 3b ).
  • This pivoting movement ends at the latest when the upper side of the tip 41 of the hold-down plate 4 passes through the plane 200 in the region of the stitch pattern 61.
  • the hold-down plate 4 By a preferably acting parallel to the plane 200 acting (arrow F2) of the control surface 50 and the support of the reaction forces (arrow F1 ') on the control surface 52 by control cams, not shown, the hold-down plate 4 then performs a movement in which its tip 41 behind the Front of the mesh image 61 is moved. This position is in Fig. 3c shown.
  • the hold-down plate 4 bears against the surface 43 on the round rod 8 and is fixed in this position by the nose 49 of the web 48.
  • the surface 44 of the hold-down plate 4 is pressed against the round rod 9 by the force of the bending spring 47 integrated in the hold-down plate 4. This means that the hold-down board 4 is locked in this position, which is its off-mode position.
  • the tip 41 of the hold-down board 4 is behind the stitch pattern 61 and is therefore ineffective.
  • the hold-down plate 4 which rests with its surface 43 on the round rod 8, by means of a preferably perpendicular to the plane 200 acting (arrow F1) of the control surface 52 by means not shown control cams pivotal movement in the direction of the arrow R '.
  • their tip 41 reaches the outermost opening position, which in Fig. 3d is shown.
  • This position is held as long as the hold-down board 4 is urged on the control surface 52 by the cams in the direction of the arrow F1.
  • the outermost opening position is mechanically limited by the system of the surface 45 on the round rod 9.
  • Fig. 4 is now also in four individual representations, the closing movement of the hold-4 from the in the Fig. 3d and 4a shown extreme opening position shown in the lowest closed position.
  • the hold-down plate 4 rests with the surface 43 on the round rod 8 and is fixed by the nose 49 of the web 48 in this position.
  • the surface 45 of the hold-down plate 4 abuts on the round rod 9.
  • the hold-down plate 4 By acting preferably parallel to the plane 200 (arrow F3) of the control surface 53 and the support (arrow F1 ') on the control surface 52 by means not shown cams, the hold-down plate 4 is brought into a rotational movement, which is superimposed on a translational movement. In this way, a portion of the closing movement of the board 4 is performed until the underside of the tip 41 is in the region of the plane 200. This position is in Fig. 4b shown.
  • the board 4 is now with the surface 42 on the round rod 8 and is fixed by the nose 49 of the web 48. From this position, it is displaced by a preferably perpendicular to the plane 200 acting on the control surface 41 (arrow F4) and the limitation of movement (arrow F1 ') on the control surface 52 in a pivoting movement about the rod 8 in the direction of the arrow R.
  • the hold-down plate 4 is moved by cams so far in the direction of the arrow R until the top of its tip 41 forms an intersection in the region of the mesh image 61 with the plane 200. The closing position reached after that is in Fig. 4c shown.
  • Fig. 4d is the lowest closing position of the hold-down board 4 reached thereafter.
  • Fig. 5 shows in a view from above a section of a needle bed 1 'with a second type of hold-down 4', which are each mounted in a sliding bearing 5.
  • a basic bed 2 ' are shown therein with stored needle bed webs 3'.
  • the needle bed webs 3 ' form the guide grooves for needles 7' and for the sliding bearing 5 with the hold-down boards 4 '.
  • the mesh images are again formed by a mesh image segment 6 '.
  • the hold-down plate 4 ' is positively connected to the sliding bearing 5 such that it can perform a pivoting movement with respect to the sliding bearing 5. Laterally, the hold-down plate 4 'and the sliding bearing 5 are held by the groove 31' of the needle bed webs 3 '.
  • Round rods are also stored in the needle bed 1 ', in this case the round rods 8', 9 'and 12. They are all guided in the needle bed webs 3' and extend over the entire length of the needle bed 1 '.
  • the round rods 8 'and 9' form the height fixing and sliding planes for the sliding bearing 5, which includes them with slots 60 and 62, respectively.
  • the sliding bearing 5 has circular segment-shaped recesses 53 and 54, in which the hold-down plate 4 'with a circular segment-shaped portion 43' is pivotally mounted.
  • the beginning of the closing movement of the hold-down plate 4 ' is initiated by applying a control surface 47' by means not shown control cams.
  • the further pivoting movement of the hold-down plate 4 'in the direction of the arrow S downwards is triggered by acting on a surface 44' of the hold-down plate 4 'by means of an end region 58' of a bending spring 58 connected to the sliding bearing 5.
  • the pivoting movement ends when the underside of an arm 42 'of the hold-down plate 4' bears against a surface 52 of the sliding bearing 5 and thus the hold-down plate 4 'has reached its lowest closed position.
  • the opening movement of the hold-down plate 4 'in the direction of the arrow S' is effected by acting on its control surface 46 'by means of a control cams, not shown here.
  • the outermost opening position of the hold-down plate 4 ' is limited by the abutment of its surface 45' on a surface 55 of the sliding bearing 5.
  • Fig. 6 shows the hold-down plate 4 'in its deepest closed position in which the tip 41' of the arm 42 'of the hold-down plate 4' a mesh 150 'lowers by the tip 41' on the mesh foot 151 'presses.
  • the compressive force is determined by a spiral spring 58, which rests with its end portion 58 'on the surface 44' of the hold-down plate 4 '.
  • the dot-dash line 100 ' indicates the center the comb gap between the needle bed 1 'and an opposite needle bed, not shown here.
  • Fig. 7 is the opening movement of the hold-down 4 'in four different positions based on sectional views accordingly Fig. 6 illustrated by the needle bed 1 '.
  • This opening movement and the subsequent, in Fig. 8 illustrated closing movement is preferably performed when the needle 7 'is in its most retracted position.
  • Fig. 8 now illustrates the closing movement of the hold-down plate 4 'from its outermost opening position to the lowest closed position.
  • Fig. 8a the hold-down board 4 'is shown in its outermost opening position.
  • the sliding bearing 5 is in its most retracted position, in which it is fixed by the locking of the notch 59 'of its arm 59 with the rod 12.
  • the hold-down plate 4' so far in the direction of arrow S 'was pivoted until its surface 45' came to rest on the surface 55 of the sliding bearing 5 and thus the outermost opening position was reached.
  • the surface 55 forms a mechanical limit for the outermost opening position.
  • the sliding bearing 5 is moved by acting on its control surface 57 by means not shown control cams in the direction of the arrow H in its foremost position.
  • the control surface 46 'of the hold-down plate 4' is acted upon by control cams not shown in such a way that the pivot position of the hold-down plate 4 'does not change during the displacement of the slide bearing 5 ( Fig. 8b ).
  • the hold-down plate 4 'by applying its control surface 46', 47 'by control cams, not shown in the direction of Arrow S is pivoted so far until the top of its tip 41 'in the region of the stitch pattern 61' passes through the plane 200 ' Fig. 8c shown and achieved by cams closing position of the hold-down plate 4 'is this by the force of the prestressed bending spring 58, which acts with its end portion 58', the surface 44 'of the hold-down plate 4', further pivoted in the direction of the arrow S.
  • the size of the pivoting movement depends on the size of the mesh, which is held down.
  • Fig. 9 the action of the hold-down board 4 'on the stitch forming process is illustrated.
  • Fig. 9a the needle 7 'is in its rest position.
  • the hook 71 'of the needle 7' hangs a loop 150 '.
  • the needle 7 ' is retracted in the direction of the arrow R until the loop 160 reaches the predetermined size.
  • the chopped loop 150 ' is now above the creased loop 160 (FIG. Fig. 9d ).
  • the tip 41 'of the hold-down plate 4' continues to act on the mesh foot 151 'during the further retraction movement and causes a slight tension in the loop 160.
  • the thread of the loop 160 is continuously braked, resulting in a uniform formation of all stitches with this Needle 7 'are formed leads.
  • the hold-down plate 4 After the stitching position of the stitch 160 is reached, the hold-down plate 4 'performs its opening movement immediately followed by its closing movement to allow the stitch foot 161 of the stitch 160 to be loaded before the needle 7' begins its propelling motion to form a new stitch.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
EP20070017432 2007-09-06 2007-09-06 Flachstrickmaschine Active EP2034063B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE200750005768 DE502007005768D1 (de) 2007-09-06 2007-09-06 Flachstrickmaschine
EP20070017432 EP2034063B1 (de) 2007-09-06 2007-09-06 Flachstrickmaschine
CN2008102128080A CN101381923B (zh) 2007-09-06 2008-09-05 针织横机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070017432 EP2034063B1 (de) 2007-09-06 2007-09-06 Flachstrickmaschine

Publications (2)

Publication Number Publication Date
EP2034063A1 EP2034063A1 (de) 2009-03-11
EP2034063B1 true EP2034063B1 (de) 2010-11-24

Family

ID=39266151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070017432 Active EP2034063B1 (de) 2007-09-06 2007-09-06 Flachstrickmaschine

Country Status (3)

Country Link
EP (1) EP2034063B1 (zh)
CN (1) CN101381923B (zh)
DE (1) DE502007005768D1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106894152B (zh) * 2017-03-31 2018-11-23 浙江丰帆数控机械有限公司 一种针织横机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3935763A1 (de) * 1989-10-27 1991-05-02 Stoll & Co H Flachstrickmaschine
DE19704644B4 (de) * 1997-02-07 2006-06-14 H. Stoll Gmbh & Co. Flachstrickmaschine und Verfahren zur Herstellung eines Gestricks
DE19725073B4 (de) * 1997-06-13 2004-11-25 H. Stoll Gmbh & Co. Strickmaschine, insbesondere Flachstrickmaschine
EP1347088B1 (de) * 2002-03-23 2006-11-08 H. Stoll GmbH & Co. Flachstrickmaschine mit verstellbaren Platinen
JP4175976B2 (ja) * 2003-07-30 2008-11-05 株式会社島精機製作所 可動シンカーを備える横編機
JP4519636B2 (ja) * 2004-12-28 2010-08-04 株式会社島精機製作所 可動シンカを備える横編機

Also Published As

Publication number Publication date
DE502007005768D1 (de) 2011-01-05
EP2034063A1 (de) 2009-03-11
CN101381923B (zh) 2011-04-13
CN101381923A (zh) 2009-03-11

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