CN1757806A

CN1757806A - Latch needle of knitting machine

Info

Publication number: CN1757806A
Application number: CN 200510108413
Authority: CN
Inventors: T·斯托尔
Original assignee: H Stoll & CoKg GmbH
Current assignee: Carlmeyerstol R & D Co ltd; H Stoll GmbH and Co KG; Karl Mayer R&D GmbH
Priority date: 2004-10-07
Filing date: 2005-10-08
Publication date: 2006-04-12
Anticipated expiration: 2025-10-08
Also published as: DE502004008493D1; EP1645669B1; CN100529222C; EP1645669A1

Abstract

A latch needle for a knitting machine has a latch (3) which is mounted so as to be pivotable in a latch groove (19) of the latch needle and has a needle opening tongue (5), a tongue spoon (6) and a transition region (7) between the needle opening tongue (5) and the tongue spoon (6). The transition region (7) extends from the part of the latch (3) which projects from the needle groove (19) when the hook space of the latch needle is closed and/or opened to the wall which is the wall of a groove (14) of the latch spoon (6) which is required for a hook (2).

Description

The latch needles of knitting machine

Technical field

The present invention relates to a kind of latch needles that is provided with for knitting machine with needle latch, described needle latch is bearing in the glossal canal of latch needles swingably, and have out needle latch sheet, needle latch spoon and open the needle latch sheet and the needle latch spoon between transitional region.

Background technology

For the latch needles of knitting machine, for using needle latch on the run-on point on the shank that is bearing in latch needles in the pinhock space that opens and closes latch needles.This needle latch is handled by coil, and coil is in the pinhock space of latch needles or on the shank behind the needle latch.

In order to open the pinhock space, displace (austreiben) latch needles to form new coil.Coil in this pinhock is sliding on the pin neck at latch needles on the shank direction.Swing on its position of opening by this motion needle latch.Then coil is being opened on the needle latch sheet and is being sliped off on the needle latch spoon and arrive needle back from the needle latch spoon.

For closing the pinhock space by needle latch and with the coil knocking over, the latch needles of pulling back thus can be with the coil knocking over.At this, on the direction of the coil on the needle back of needle latch back, slide at pinhock.By this motion coil needle latch is swung to its closed position.Coil is being opened and sliping off and arriving its coil band (Maschenverband) on needle latch sheet and the needle latch spoon on pinhock when pin continues motion.

For latch needles according to prior art, from open the needle latch sheet to the transitional face of needle latch spoon to suddenly.Thus, if when coil slides on the needle latch spoon from opening the needle latch sheet, coil can sudden enlargement, particularly when opening needle latch, but when closing needle latch also is.The unexpected expansion of coil causes yarn tension suddenly to raise, and yarn tension can cause the coil fracture.Have only by reducing knitting speed and could stop this coil fracture.This is disadvantageous especially, because the production time that the knitting speed that reduces has improved knitted fabric.

Fig. 2 is the part according to the latch needles of prior art.Known latch needles on open position with similar according to the latch needles according to the present invention of Fig. 1 d.Needle latch 20 is bearing on the point of rotation of shank swingably.Open needle latch sheet 23 and the transitional region 22 between needle latch spoon 24 has the regio pectoris, the width of vertically seeing transverse to latch needles of this regio pectoris is identical with the back of the body sector width of transitional region.Transitional region 22 has a little extension and discontinuous relatively.

Summary of the invention

Task of the present invention be to reduce coil on transitional region from opening the resistance that the needle latch sheet slides into the needle latch spoon.

This task solves by the needle latch of the knitting machine of the described type of beginning, wherein transitional region begins to extend to wall by the part (Austritt) that needle latch when the sealing and/or the pinhock space of opening latch needles stretches out from glossal canal, and this wall is the wall of the required groove of the pinhock of needle latch spoon.The transitional region of this prolongation has enlarged the binding face of the coil between the needle latch spoon of the shank of less width and broad, and be used for coil from shank to the mild transition of needle latch spoon.

In a preferred implementation, transitional region transverse to needle latch longitudinally width begin to narrow down from the needle latch spoon in the direction of opening the needle latch sheet.The abutment face of coil enlarges to the width of needle latch spoon continuously from opening the needle latch sheet, to avoid unexpected transition.

In addition, another embodiment can have back, and this back has the width transverse to the needle latch longitudinal extension of transitional region, and this width is littler than the respective width of the tongue chest of transitional region.

Description of drawings

Schematically illustrated a preferred embodiment of the present invention in the accompanying drawings, and described this embodiment in detail by accompanying drawing.

Accompanying drawing is:

Fig. 1 a is in the side view according to needle latch of the present invention under the latch needles closed condition;

The vertical view of the needle latch of Fig. 1 b Fig. 1 a;

Fig. 1 c is in the side view according to the needle latch of Fig. 1 a under the latch needles open mode;

The vertical view of the needle latch of Fig. 1 d Fig. 1 c;

Fig. 2 is by the vertical view of the known needle latch of prior art.

The specific embodiment

Fig. 1 a to 1d and Fig. 2 illustrate latch needles for part and parcel of the present invention, i.e. the end of latch needles, the place of needle latch effect just.

According to pinhock 2 and needle latch 3 that Fig. 1 a latch needles 100 has shank 1, is fixedly linked with shank 1, needle latch is bearing on the run-on point 4 swingably.

Needle latch 3 comprise out needle latch sheet 5, needle latch spoon 6 and open needle latch sheet 5 and needle latch spoon 6 between transitional region 7.Transitional region 7 be identically formed on the both sides of needle latch 3 and opening between needle latch sheet end 8 and the spoon end 9 along the longitudinal extension of needle latch 3 and between tongue chest 10 and back 11 transverse to longitudinal extension.

The edge of transitional region 7 is transverse to vertically being determined by tongue chest 10 and back 11 and being formed by the structure of needle latch spoon 6 with the supporting 4 that can swing in the vertical.Therefore transitional region 7 has the parallelogram shape (parallelogrammartig) in side view and the vertical view.This shape has starting point 12 on tongue chest 10, open needle latch sheet 5 and come out by glossal canal 19 when closing needle latch on the starting point, and this shape also has terminating point 13, and this terminating point is thick given by the arm of the groove 14 that is used for pinhock 2.This shape has starting point 15 (Fig. 1 c) on back 11, and by coming out in the glossal canal 19, this shape also has terminating point 16 when opening needle latch sheet 5 opening needle latch on this starting point, and this terminating point is thick given by the arm of the groove 14 that is used for pinhock 2.

By Fig. 1 b as seen, transitional region 7 its transverse to the width longitudinally of needle latch 3 on from the spoon end 9 of needle latch spoon 6 to the narrowed width of opening needle latch sheet 5.Transitional region 7 has with respect to the less back of the body zone 17 of width, regio pectoris 18 (seeing Fig. 1 d).Fig. 1 b is the view of the back of needle latch 3, and needle latch sheet 5 parts of opening of needle latch are contained in the glossal canal 19 in the shank 1.

Can see from tongue chest 10, extend on relatively flat ground, the side of tongue chest 10 to the transition of needle latch spoon 6 from opening needle latch sheet 5 according to Fig. 1 d.Transitional region 7 is by dotted line clearly expression once more in Fig. 1 d.

Claims

1, a kind of latch needles (100) that is used for knitting machine, it has a needle latch (3), this needle latch be bearing in the glossal canal (19) of latch needles swingably and have one open needle latch sheet (5), a tongue piece spoon (6) and open needle latch sheet (5) and tongue piece spoon (6) between a transitional region (7), it is characterized in that, transitional region (7) extends to wall by the part that needle latch (3) when closing and/or opening the pinhock space of latch needles (100) stretches out from needle tray (19), this wall is the wall for the required groove (14) of a pinhock (2) of tongue piece spoon (6).

2, latch needles according to claim 1 is characterized in that, the width of transitional region (7) transverse to needle latch (3) vertically (6)s narrowed down to the direction of opening needle latch sheet (5) from the tongue piece spoon.

3, latch needles according to claim 1, it is characterized in that, transitional region (7) has a back of the body (17) of transitional region (7), and this back of the body has a width transverse to the longitudinal extension of needle latch (3), and this width is littler than the respective width of the chest (18) of transitional region (7).