CN1023906C - Needle for setting up fabrics - Google Patents
Needle for setting up fabrics Download PDFInfo
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- CN1023906C CN1023906C CN 92101555 CN92101555A CN1023906C CN 1023906 C CN1023906 C CN 1023906C CN 92101555 CN92101555 CN 92101555 CN 92101555 A CN92101555 A CN 92101555A CN 1023906 C CN1023906 C CN 1023906C
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- push jack
- comb
- shank
- setting
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Abstract
A set-up comb 6, disposed below the gap 3 between needle beds in a V-bed flat knitting machine, comprises a comb bed 5 and a plurality of setting-up needles 4 mounted to the comb bed 5. Each setting-up needles comprises a needle body 10 fixed to the comb bed 5 and a slider 11 slidably combined with the needle body 10. The needle body 10 has a hook accommodating protrusion 20 formed at its front end for releasably receiving therein a hook 12 formed at the upper end of the slider 11. When the slider 11 is elevated, the hooks 12 retract into the hook accommodating protrusions 20 of corresponding needle bodies 10 and thus the set-up yarn 75a, 75b engaged by the hooks 12 are disengaged from the hooks.
Description
The present invention relates to a kind of novel needle for setting up fabrics, especially for the needle for setting up fabrics of two-needle bar flatbed knitting machine.
The advantage of flatbed knitting machine is that it can carry out widening and narrowing operation, thereby makes fabric can form desirable style.
But when weaving with manufacturing process in batches, there is following problems in knitting operating process in the stage of opening.If the terminal line width that carries out folding and unfolding pin forming fabric is during less than the setting up of next section forming fabric, for example, that just need provide a large amount of drawing course between the setting up of not holding line and following a slice fabric of knitted fabric, so then these setting ups will be widened till the setting up that always arrives next sheet fabric continuously.Otherwise the setting up of following a slice fabric will suffer partial draft and just can not get the broadwise uniformity in knitted structure.
Therefore, thereby do not produce the top problem of being mentioned that will run in order to reduce the quantity of drawing course, even when the folding and unfolding pin shaping operation of carrying out in batch, also can not take place, open method and realize the open device and the needle for setting up fabrics of these methods of many kinds is proposed once.
For example, a kind of like this method is disclosed among Japan Patent publication NO.51-2979 and the Japanese Patent Application Publication bulletin NO.59-21762, wherein be provided with a hook-type open the comb 103, the comb that opens has a plurality of needle for setting up fabrics (crochet hook) 101, the front end of each crochet hook has a hook 102, as shown in figure 21, before will passing through by the front end of this method needle for setting up fabrics, back needle-bar 2f, gap between the 2r protrudes upward, and the knitting needle R of (for example on the needle-bar of back) places its progressive position on the needle-bar therein, then a yarn 105 that opens that is used for the first knitting line is fed on the faller gill 101 that opens and knitting needle row R, after this, compile pin R withdrawal, the front end of needle for setting up fabrics 101 drops to the height that is lower than gap 3 simultaneously, thereby makes the yarn 105 that opens form zigzag between needle for setting up fabrics 101 and knitting needle R, the comb that opens descended gradually and the yarn 105 that opens still keeps the hook 102 with needle for setting up fabrics 101 to be connected, can weave line next and subsequently thus.
Japanese Patent Application Publication bulletin NO.45-24306(US-PS 3,376,716) another kind of method is disclosed, the a pair of comb formula comb that opens wherein is set, this comb that opens is to be combined by YIPAISHU shape eye needle guide and YIPAISHU shape pin shape pin (not shown), so then two comb formulas open to comb and just protrude upward and be clamped in its closing position by the gap between the forward and backward needle-bar, then are in its progressive position by the gap between two comb formula eye needle guides rows and the pin shape faller gill at the knitting needle on one of them needle-bar.Therefore, the yarn that opens of the first braiding line is with the same with used mode in the method for mentioning according to previous technology, fed between two comb formula faller gills and knitting needle row, these knitting needles are moved to its retracted position then, make thus the zigzag yarn line that opens just fill up knitting needle and open the comb between.This comb that opens just drops on the position that is lower than the gap between two pins then, thereby hook the upper end of eye needle guide that makes the sinker loop of setting up just be in the comb that opens of closure state.Subsequently, till this comb that opens drops to gradually that Danone is enough line next and subsequently is woven.
In these methods of using this known devices, only the knitting needle on a needle-bar is brought to its progressive position, and needle for setting up fabrics all will protrude upward by this gap.Hook at opening of providing between each needle for setting up fabrics that stretches out by this gap the opened front end of comb of the sinker loop S of yarn 105 and the knitting needle on a needle-bar that opens between the needle for setting up fabrics that stretches out in the gap.When this comb that opens descends gradually, make line next and subsequently all can carry out knitting.Like this, there is following problems in these main technical process.
A) yarn 105 that opens usually, feed in knitting needle with open comb between, also to clamp simultaneously, as shown in figure 22 by suitable yarn gripper 106.Feeding end 105a several or tens rows having woven below of starting of yarn 105 of opening will be unclamped from yarn gripper 106 afterwards.Therefore, at setting up coil (sinker loop) S of the feeding end of starting near the yarn 105 that opens, S ... will as in knitting process (Figure 23) by opened the comb 103 drawing-offs.
B) therefore, head end one side at the yarn 105 that opens arrives needle thread loop N, N continuously ... the longitudinal coil that forms in the process does not have enough tractive tension force effects thereon equally, in view of the above, a new cast on cloth sheet 150 does not have uniform tension force equally on its whole width.Tend to cause fabric 150 places (Figure 23) distortion that is distorted like this.
C) if sinker loop S
1, S
2Extended under the stretching of the comb 103 that opens, the 150a place, top at the selvedge place (Figure 23) of close fabric 150 does not apply enough tensile forces, tends to take place easily coil like this and come off in the line of braiding.
In the above-mentioned mentioned method and apparatus that opens, also have been found that to have following problem, the yarn that wherein opens must feed on the comb that opens under the following conditions, and the front end of the comb that promptly opens will protrude in the top in the gap between the forward and backward needle-bar significantly.
The inventor once proposed a kind of new method that opens, it can eliminate of the prior art above-mentioned a) to c) problem, allow fabric under the situation of bearing uniform tension force on its whole width, to descend, and can not cause aforesaid at the sagging that plays head end place sinker loop near the setting up coil.
This new method of opening that on flatbed knitting machine fabric is opened is characterized in that, when on the row that opens has the flatbed knitting machine of forward and backward needle-bar, opening,
A kind of rib-loop row form with 1 * 3 hitch structure be to form the yarn that opens in the following manner than stroke setting up, promptly a reach stroke rib-loop row open yarn and a rollback stroke rib-loop row open yarn mutually across the indention pad between the forward and backward needle-bar and above the gap between two needle-bars
After this, reach that pin on the comb that opens is acted on be positioned at top, above-mentioned gap and the line of rollback stroke open on the cross section of yarn, so as the height that the cross section of duplicate rows rib-loop row yarn is dropped to be lower than this gap and
After the end of rollback stroke rib-loop row, a two-stroke setting up yarn is fed the knitting needle place that is lined with a two-stroke row yarn, weave thus and form the tubular line, and carry out the braiding of solenoid line subsequently in rapid succession.
But, when the device that opens that this new method of opening is applied to above-mentioned prior art (in this device, must stretch out the thread feed needle for setting up fabrics that will open under the condition in the gap between the forward and backward needle-bar), found following problem at the front end of needle for setting up fabrics.
D) be used for the needed space of yarn feeder above this gap, the front end of the comb that partly opened stops up, and therefore, on the position above this gap, the yarn feeder that must be able to move the yarn that opens is with away from the comb that opens.Like this, being used to feed the yarn feeder that opens will quantitatively with on the position be restricted, because they must be displaced on the height that is higher than this gap, so that avoid and open comb mutual interference mutually.When the yarn feeder of yarn comes in contact with the comb that opens that stretches out if open, might produce pin broken needle or the crooked accident of making above the gap.
E) when the comb that will open is shifted the height that is higher than the gap onto, if yarn feeder is arranged on passage, the top of the comb that then opens is just made a mess of by yarn feeder easily.Therefore, when the comb that will open is pushed the top in this gap to, must make all yarn feeders keep leaving the in-scope that opens and comb.This just means and each yarn feeder will must be moved in advance on the position, next door far away that breaks of comb that can not opened.
F) the conventional comb that opens has the hook-type needle for setting up fabrics, these needle for setting up fabrics must be pushed up to substantially exceed the height of yarn for the gap between two needle-bars of yarn that open.Therefore, these needle for setting up fabrics all are quite long.If when segment length's fabric was descended by this comb that opens, then the fabric that is connected with needle for setting up fabrics just was subjected to sizable power on fabric narrowing direction.Therefore, the existing problem of comb that opens to the prior art that has long needle for setting up fabrics is that these pins occur bending and deformation easily.
When if needle for setting up fabrics deforms, be difficult to make open comb and coil disengaging by mechanical device.
(g) shortcoming that comb exists is to have the routine of hook-type needle for setting up fabrics to open, and the setting up coil that it can not utilization handle itself be connected with last planar coil is separated from, and therefore, a kind of device of needs is separated from the coupled last end-coil of the coil that opens.But, this mechanism can not directly place needle-bar below.For hook and the fabric that makes the comb that opens is separated from, must adopt a kind of device on the comb hook height that opens, to grip braided fabric, promptly this device is used to clamp and the tractive fabric.Therefore, for existing technique device, when weaving short fabric, it is impossible making the lower end disengagement of open comb and fabric.
(h) in this respect, the above-mentioned pair of comb formula shortcoming that comb has that opens is that it might make the row sinker loop that opens that is connected with the comb upper end that opens unclamp by the pin formula pin that descends, and passes through the pin hole knocking over of eye needle guide simultaneously.Even braiding knits leaf length the comb that opens is thrown off by the lower edge of fabric like this.But, adopt the difficulty of this device of just having mentioned that opens to be, need be to comparing the insertion of each pin shape pin front end with its corresponding formed eyelet of arcuate front ends of long eye needle guide and withdrawing from all and will accurately control with certain-length, this is actually and need will has higher accuracy for two comb rows' that bear relative displacement arrangement.
The purpose of this invention is to provide a kind of novel needle for setting up fabrics and a kind of novel needle for setting up fabrics that can realize this novel method that opens easily that can eliminate existing all problems in above-mentioned prior art opens device in aforementioned (d) to (h).
To achieve these goals, according to the present invention, provide a kind of needle for setting up fabrics, this needle for setting up fabrics is made up of a shank and the push jack that matches with it, and this push jack can be in the vertical enterprising line slip of shank, and this needle for setting up fabrics comprises:
(a) upper end of this push jack has a hook forward-facing, makes the bonding part that itself is connected on the push jack lowering or hoisting gear and have one in its lower end;
(b) this shank has an aft-opening vertical channel to hold the push jack that slides within it on its back portion, and have one and be used for shank is immovably fixed mating part on comb bed in vertical direction, above-mentioned push jack is can be contained in the above-mentioned vertical channel to upper and lower motion in a predetermined stroke with respect to shank at least;
(c) this shank forms a groove forward-facing by partial cut near the previous section of its upper end; And
(d) this shank front side in the top has the recess of a hook-shaped protuberance forward-facing, so then when push jack be advanced to be in the shank at it during high raised position, the hook portion of above-mentioned push jack just is contained in wherein, and when push jack is descended a little by the highest above-mentioned raised position, the hook portion of push jack just is emerging in the place ahead of shank on a groove that just has been lower than above-mentioned protuberance, the top of above-mentioned hook-shaped protuberance recess is forward-facing downward-sloping, and its underpart is forward-facing acclivitous.
Therefore, needle for setting up fabrics of the present invention can offer the device that opens of the flatbed knitting machine that is used for two-needle bar, it comprises a comb that opens that can move up and down that is configured in below, gap between two needle-bars, this comb that opens comprises a comb bed and a plurality of needle for setting up fabrics that is installed in this comb bed, with one be installed in comb bed and go up and be used to promote this needle for setting up fabrics, the drive unit of following motion, the described device that opens comprises:
The shank of each needle for setting up fabrics is fixed on the comb bed, and the part of shank is protruded upward by the comb bed;
On above-mentioned push jack can carry out with respect to shank and comb bed with a predetermined stroke, following motion, this push jack has a hook that stretches out forward in the upper part;
An above-mentioned shank that is protruded upward by comb bed partly is to be made of a recess by a hook-shaped protuberance forward-facing thereon.Like this when this push jack is pushed to its raised position, the above-mentioned hook portions of push jack just is contained in the protuberance recess, thereby make above-mentioned hook portions remain on off-position with respect to the braiding yarn, and when this push jack is descended by its raised position, then the hook portion of push jack is just withdrawed from by the protuberance recess, and be in respect to the operating position that weaves yarn, the recess top of above-mentioned hook-shaped protuberance is forward-facing downward-sloping, and its underpart is forward-facing acclivitous; With
Above-mentioned push jack is equipped with the push jack lifting device, and this device is used to promote push jack to be done with respect to the upper and lower motion of shank with the comb bed, thereby the hook portions of push jack is withdrawed from by the above-mentioned hook-shaped protuberance recess that is contained in shank.
Each needle for setting up fabrics of the present invention comprises a shank and a push jack, has the recess of a hook-shaped protuberance forward-facing in the upper end of shank, and also has a hook forward-facing in the upper end of push jack, and this hook can be done the slip with respect to shank.When push jack is in lower position with respect to shank and needle-bar, the hook portions of push jack just withdraws from the recess of the hook-shaped protuberance of shank, thereby hook portions is stretched out on the position that is lower than hook-shaped protuberance recess forward from the front of shank, and when push jack upwards promoted with the comb that opens with respect to shank, then hook portions just entered in the recess of hook-shaped protuberance.At the recess of the hook-shaped protuberance forward-facing of shank upper end, be forward downward-sloping above it, and its underpart is inclined upwardly forward, therefore, when push jack rose or descend, then hook portions was just withdrawed from downwards or is returned back up in the protuberance by protuberance.Therefore, the comb that opens that disposes the needle for setting up fabrics of a plurality of this structures can make its hook portions by push jack be connected with the yarn that opens or breaks away from by the rising of push jack or decline.
When open yarn (rib stitch line yarn) and backward stroke line of each hook portions that makes the comb that opens and the line of above-mentioned this reach stroke opens the cross section of yarn (rib stitch line yarn) when being meshed, the lifting device of push jack is driven, thereby make each relevant push jack rise to the height that is higher than shank, meanwhile push jack is kept in this state, the comb that opens is raised so that upwards promote the height that needle for setting up fabrics surpasses this gap, subsequently, the upper end of needle for setting up fabrics is directed to arrive by the downward-sloping forward upper face of the recess of hook-shaped protuberance and is positioned at the open position of cross section back of row yarn (rib-loop line yarn) of two-stroke, and the recess of this hamulus portion is just brought to the height place of cross section top.With the comb that opens upwards promote arrive such state always till, and then actuating push jack lifting device is so that make push jack drop to the below of shank and comb bed.The hook of push jack just withdraws from so that be exposed at the below of protuberance in the recess by hook-shaped protuberance.This hook and the two-stroke row yarn that opens is engaged at their cross section.Subsequently, with the same mode of the device that opens of routine, making open comb with the proportional state of weaving textile speed under descend gradually, satisfactory like this tension force can be added on the braided fabric that ensues after mouthful row.
When in the above described manner the comb that opens being broken away from the fabric that has woven, just start the push jack lifting device so that this push jack is risen to the top of shank and comb bed, the hook portions of this push jack is entered in the recess of hook-shaped protuberance of shank, thereby the setting up yarn of fabric and this hook are separated from.The forward-facing acclivitous surface that just forms along the bottom at protuberance of the setting up yarn that breaks away from this hook upwards comes off and can the portion of being highlighted not catch like this.The fabric lower end that has woven like this, just breaks away from from the comb that opens fully.
Fig. 1 is the vertical cross-section side view of an embodiment of the device that opens used therein of expression needle for setting up fabrics of the present invention;
Fig. 2 is the front view that expression one opens and combs;
Fig. 3 is an exploded perspective illustration of taking from the part III of Fig. 2;
Fig. 4 is the cutaway view that the line IV-IV along Fig. 2 cuts;
Fig. 5 is the side view of a push jack;
Fig. 6 is the side view of a shank;
Fig. 7 is the side view of a needle for setting up fabrics;
Fig. 8 is the rearview of this needle for setting up fabrics;
Fig. 9 is the cutaway view that the line IX-IX along Fig. 8 cuts;
Figure 10 is the cutaway view that the line X-X along Fig. 8 cuts;
Figure 11 is the cutaway view that the line XI-XI along Fig. 2 cuts, in order to show that push jack is in the lifting state;
Figure 12 is the cutaway view that the line XII-XII along Fig. 2 cuts, in order to show that push jack is in the decline state;
Figure 13 is the enlarged drawing of part X III among Figure 11;
Figure 14 is the enlarged drawing of part X IV among Figure 12;
Figure 15 a to Figure 15 c is with way of example demonstration each step according to the novel formed setting up of method that opens;
The side view in each stage of the braiding process of Figure 16 a to 16c demonstration needle for setting up fabrics and setting up yarn;
Figure 17 is the double rib line that is meshed with needle for setting up fabrics of the expression view that yarn observes from the top certain angle that opens;
Figure 18 and Figure 19 are the side views of representing to be undertaken by the comb that opens through the fabric of braiding tractive;
Figure 20 represents to open the side view of device when its comb that opens breaks away from fabric;
Figure 21 to Figure 23 shows prior-art devices: wherein Figure 21 is a partial side view that opens device; Figure 22 is the view of expression according to the formed setting up of method of routine;
And Figure 23 is the structure chart of expression according near the method part initial feeding end of the fabric of braiding of routine.
The aforesaid novel method of opening can provide some improvement parts to realize by combination on the basis of the existing device that opens, and these improvement parts can be to be imagined easily by the personnel that have the knack of this professional technique.But, adopt needle for setting up fabrics of the present invention that the novel method that opens more successfully is achieved.
Therefore, in the following description, be applied to an embodiment of the device that opens wherein, will explain by way of example subsequently and utilize this device that opens to carry out the novel method that opens that opens through the fabric of braiding with at first setting forth needle for setting up fabrics of the present invention.
Referring to Fig. 1 to Figure 14, comprise all aspects of describing this embodiment among the figure, the comb 6 that opens is arranged on the flatbed knitting machine 1, below the gap 3 between a pair of v type needle bed 2f, 2r, and on can carrying out, following motion, have a comb bed 5 on the comb 6 that opens, a plurality of needle for setting up fabrics 4 are settled thereon.Flatbed knitting machine 1 has two side frame 1a, is fixed with guide pillar 7,7 Fig. 2 that protrude upward on the frame), be combined with slide block 8 on the guide pillar and be slidingly matched with it.Comb 6 comb bed 5 its underparts that open are fixed on slide block 8 both sides.With one can upper and lower motion driving chain 9 be connected to and slide on 8 so that driving the comb 6 between raised position that sets and down position (Fig. 1) that opens is in vertical motion, carry out between the falling head (for example shown in Figure 20) that sets vertically moving thereby (Fig. 1) raised position that each needle for setting up fabrics of the comb 6 that opens can be protruded upward a upper end that makes them exceed gap 3 and a upper end that makes them are in.
The comb 6 that opens will be described in more detail, each needle for setting up fabrics 4 comprises a shank 10 and a push jack 11, (Fig. 6) is the flat structure in the side view of shank, push jack also is the flat structure in side view (Fig. 5), and push jack 11 is slidingly matched with its vertical enterprising line slip campaign (Fig. 7 to Figure 10) at shank with shank 10.
Have directed hook 12 forward on the top of push jack 11 and have a bonding part 13 in its lower end, this part is used for push jack 11 is connected to a push jack hoisting mechanism, also will be described below this mechanism, and bonding part 13 is local notched.
For the hook portions 12 that makes push jack 11 can be moved to by the recess 20 of hook-shaped protuberance in the groove 17, vice versa, on shank 10 front sides that are shaped on groove 17, be provided with a perforate 18, this perforate is to form by (Figure 13 and Figure 14) cut in the bottom of vertical trench 14.In addition, in this embodiment, the bottom 14a that is positioned at the groove 14 of hook-shaped protuberance recess 20 front ends of push jack still keeps not being cut open (Figure 13 and Figure 14).Therefore, each needle for setting up fabrics 4 of present embodiment is assemblings like this, promptly when the hook portion 12 of push jack 11 enters the hook-shaped protuberance of push jack recess 20, when its motion by its exposing after the position passes through perforate 18 uncovered below the protuberance recess 20 groove 17 in, the front end of hook 12 just leans against on the bottom 14a of groove, thereby the top that makes push jack 11 is crooked a little backward, and the front end that makes hook 12 thus is adjacent to facing to channel bottom 14a by the strain on push jack 11 tops.
The top 20b of hook-shaped protuberance recess 20, just the top of shank 10 is forward-facing downward-sloping, thereby make it can pass back needle-bar 2r and a gap that opens between the row yarn 50, also be shot through with on the gap before and after these row yarn 50 pads that open are placed between needle-bar 2f, the 2r double rib.Boost and cross the setting up yarn and do not hook yarn 50 in upper end that thus can needle for setting up fabrics 4.The lower end 20a of hook-shaped protuberance recess 20 also will be described below, be forward-facing acclivitous so that it can be broken away from setting up yarn 50 from needle for setting up fabrics.
On comb bed 5 many needle for setting up fabrics that are arranged in parallel 4 are installed, each needle for setting up fabrics is to be made of the shank 10 of top described structure and push jack 11, and the installing mechanism of this structure below will be described.As shown in Figure 3, dorsal part at comb bed 5 has many needle trays that are arranged in parallel 21, needle tray 21 is used for fixing the shank 10 of single needle for setting up fabrics 4, the structural design of each needle tray 21 will make its needle for setting up fabrics that can insert a correspondence 4, the upper part of shank 10 can protrude upward the top edge that exceeds comb bed 5 in such a way, and the remainder of shank 10 just is fitted in the needle tray 21.
The back side at comb bed 5 is by two dovetail groove 22a along needle tray 21 extending transverselies, 22b constitutes, in the back of each shank 10 (Fig. 3), two panel 23a, 23b removably are fitted in dovetail groove 22a, the 22b, thereby make the needle for setting up fabrics 4 that is fixed on the pecten 5 be fitted in (Fig. 4) in the needle tray 21 in their shank 10 parts.
Besides, at the back side of the comb bed 5 that disposes a plurality of needle for setting up fabrics that are arranged in parallel 4 in the above described manner with below a plurality of needle for setting up fabrics 4, be provided with a push jack lifting device 24, this device can carry out upper and lower motion with respect to corresponding shank 10 and comb bed 5 with each push jack 11, make the hook portions 12 of push jack 11 enter into states in the hook-shaped protuberance recess 20 of corresponding shank 10 thus and transfer to and withdrawing from, to also being described below this.
To shown in Figure 4, a lifting arm 25 is perpendicular to the needle tray of vertically arranging 21 as Fig. 2, and can be configured in up or down pin handle row below, it is adjacent with the back of comb bed 5.Lifting bar 25 has one and is used for the groove 26 that engages with the bonding part 13 of each push jack 11, by this joint push jack 11 is connected on the lifting bar 25.The a pair of gripper shoe 27 that can support to upper and lower motion lifting bar 25 is fixed on the lifting bar 25 by a clamping screw 28, gripper shoe 27 is can being supported on to upper and lower motion in a pair of gathering sill 29, and the commutation groove is suitably to process on the dorsal part by the comb bed.In other words, this lifting bar 25 is can carry out the upper and lower gripper shoe of moving 27 along the back side of comb bed 5 and be supported on the comb bed 5 by a pair of.
Each gripper shoe 27 has a triangle follower 30 that stretches out backward.Be provided with the triangle seat board 32 of a band triangular groove 31 in this back to support plate 27, each triangular groove is meshed with a corresponding triangle follower 30, so that promote lifting bar 25 upper and lower motions.
It is laterally to be slidably supported along the gathering sill 33 at comb bed 5 back sides that groove Triangulum 32 is arranged, and this triangle follower 30 is in the triangular groove 31 that is contained in the triangle seat board 32.
Push jack lowering or hoisting gear in the present embodiment is to arrange like this, promptly when triangle seat board 32 carries out traverse motion with a predetermined stroke on comb bed 5, lifting bar 25 just is in vertical motion in a distance alpha scope, thereupon, be connected each push jack 11 on the lifting bar 25 just with predetermined stroke α, be in vertical motion with respect to each corresponding shank 10 and comb bed 5.
In Fig. 3 and Fig. 4, label 34 is that one of expression is used to make lifting bar 25 to remain on pressing plate in the gathering sill 33, and label 35 is clamping screws of expression pressing plate 34.
Being used to promote Triangulum 32 carries out traverse motion on comb bed 5 driving mechanism with reference to Fig. 2 to one below is described.An arm plate 38 that has reverse U shape cam path 37 that is used to hold cam-follower 36 is installed in Triangulum 32.On comb bed 5 carriage 39 is installed, the motor 41(that a band reduction gear is installed on carriage 39 is not shown), it serve as the lever 43 that turns round fulcrum with 42 that this motor has an output shaft 40 and one.One end of lever 43 has an elongated slot 44, and the other end of lever is to be rotatably mounted on the cam-follower 36.The crank 46 of the band crank-pin 45 that maintenance engages with elongated slot 44 is installed on the output shaft 40 of motor, and the pivot pin 45 of crank 46 is to be connected on the cam path 37 of arm plate 38 by the lever 43 that hingedly is supported on carriage 39 pivots 42.
The sensor of the anglec of rotation that one of label 47 expression is used to detect the moving half-turn of revolution of crank 46 rotates so that stop crank in the half-turn scope.
The course of work according to the push jack lowering or hoisting gear of the top institute description scheme of present embodiment is carried out in the following manner.
In this embodiment, when crank 46 was the anglec of rotation that is in shown in Fig. 2, the triangle follower 30 of each lifting bar 25 was the left ends that are in the corresponding triangular groove of each shown in the figure 31, and lifting bar 25 is at position, its underpart (Fig. 2).Then, when crank 46 rotation half-turns, be connected above it triangle seat board 32 just the promotion by lever 43 by its in position shown in Figure 2 to left movement (observing forwardly), then lifting bar 25 just rises to a predetermined raised position by the triangle follower 30 that a maintenance engages with the triangular groove 31 of Triangulum 32 in view of the above.And then when crank 46 rotated half-turn again, Triangulum 32 just with opposite direction motion, made lifting bar 25 drop to down position recited above by the triangle follower 30 that engages with the triangular groove 31 of Triangulum 32 accordingly thus.When lifting bar 25 is actuated to the upper and lower motion of aforesaid way, each push jack 11 that its lower end is connected with lifting bar 25 just carries out upper and lower motion with predetermined stroke α with respect to shank 10 and comb bed 5, be contained in thereby the hook 12 that makes push jack 11 is moved upward by its position that appears in the hook-shaped protuberance recess 20 of shank 10 (Figure 11), perhaps by motion downwards in the protuberance recess 20 in case arrive the groove 17 that is positioned at protuberance recess 20 belows appear position (Figure 12).
In the flatbed knitting machine of present embodiment, as shown in Figure 1, below needle- bar 2f, 2r, be provided with a master file and get mechanism 48 and an auxiliary spooler 49, this mechanism is used for comb 6 the level height that opens that is lower than gap 3 and is higher than decline at one, when fabric holds when descending together with the comb 6 that opens by the fabric 50 that device opened and be used for the fabric 50 that is installed on the comb 6 that opens is taken off of opening of the present invention.
The structure that this master file is got mechanism 48 is identical with known usually process structure, therefore, in addition this structure is not described in detail and illustrates.For the effect herein of this mechanism, as long as it is just enough to mention following situation, be that master file is got mechanism 48 and comprised a pair of winding roller 51,52, when dropping to the gap that is lower than between the winding roller 51,52 with convenient fabric 50, roller 51,52 just clamps fabric 50 betwixt, thus when fabric just can be when unclamping from the comb 6 that opens with the fabric take-down that is contained on the comb 6 that opens.
Auxiliary spooler 49 comprises a pair of roller 53,54, this to roller be arranged near the below of needle-bar 2f, 2r and get at master file mechanism 48 a pair of roller 51,52 above.The axle 56 of a roller 54 of auxiliary spooler 49 also can be rotated with the certain position that flatly is supported on frame 1a, and the axle 57 of another roller 53 is to be supported on the free end (working position) of crossing a pair of lever 59 every sides rotationally, lever 59 rotatably is supported on the axle 58 of roller 52, and roller 52 is in the horizontal direction with on the certain position that is supported on frame 1a rotationally.Therefore, roller 53 can towards or move away from roller 54.Each free end of opposite side (stress point) at lever 59 is supported on the cam-follower 60 rotationally, follower 60 be with to be supported on the work that matches of cam 61 on the frame 1a rotationally, one spring 62 is installed between lever 59 and the frame 1a rightly, and cam-follower 60 is to keep rolling to contact with cam 61 under the effect at spring 62.Therefore, by the rotation of cam 61 changing the anglec of rotation, roller 53 just can and roller 54 breaks away from and position contacting between mobile (Fig. 1 and Figure 18 to Figure 20).When this left mutually to roller 53,54, the comb 6 that opens just can upper and lower motion (Fig. 1) between roller 53,54, and when roller 53,54 passed through fabrics 50 and is in contact with one another, then fabric 50 just was clamped between the roller 53,54 (Figure 18 to Figure 20).
In addition, for fabric 50 is descended by auxiliary spooler 49, roller the 53, the 54th at that time, rotate in the direction of arrows (seeing Figure 18) and simultaneously fabric 50 be clamped between the roller 53,54, a roller rotating drive mechanism as described below is connected on the roller 53,54.
The axle 56 of roller 54 is to be connected on the inversion axis 63 by a pair of intermeshing omnidirectional mechanism (not shown), axle 63 is with on the certain position that is supported on frame 1a rotationally, and the axle 57 of reversing shaft 63 and another roller 53 is connected with each other by a synchronous belt 72 and a timing belt pulley, synchronous belt 72 is by the axle 63 that is contained in separately, timing belt pulley 68 on 57 1 sides, 69 drag, and timing belt pulley 71 is mounted on the output shaft 70 of a unshowned motor, and this drags is with the belt pulley 66 of floating on the certain position that is supported on lever 59 rotationally through two, 67 carry out.
Below in conjunction with an example fabric method of opening of the present invention is described, wherein this method is by adopting the device that opens in the foregoing description to realize.
When adopting described above opening during device, fabric just can open in the following manner.
For fabric is opened, the comb 6 that opens remains on the spare space below the gap 3 (for example in position shown in Figure 20).
To be positioned at the knitting needle R on the needle-bar 2r of back then, per three pins are spaced, before knitting needle F on the needle-bar 2f also have equally and be spaced, the work knitting needle of a needle-bar is placed between the two adjacent knitting needles facing to another needle-bar, they all can be pushed ahead an operating position, and being encased inside after knitting needle R, the F place at the setting up yarn 75a indention of reach stroke, pin R, F just return, and just 3 places form (Figure 15-a) in the gap with a rib-loop line 75a with 1 * 3 isolating construction thus.
Then, the spaced knitting needle F of same three pins, the R on knitting needle R, F opposite move forward to the operating position, be lined with reach stroke rib-loop line yarn 75a on it, a rollback stroke setting up yarn 75b zigzag be encased inside knitting needle F, R after, knitting needle F, R then return, and 3 places form the rib-loop row 75b of 1 * 3 isolating construction in the gap thus.Like this, reach and setting up yarn 75a, the 75b of rollback stroke be before just pad is placed on, (Figure 15-b) that is interweaved of 3 places, crack betwixt also between back needle-bar 2f, the 2r.
This rib- loop row 75a, 75b is in case 3 places form in the gap, the comb 6 that opens just upwards promotes, the hook-shaped protuberance recess 20 that then is positioned at each needle for setting up fabrics 4 upper end thus just the inclined surface 20b by its top be guided through yarn 75a, the cross section of 75b (Figure 16-2) rises to corresponding rib-loop line yarn 75a, and the top one of the cross section of 75b is highly located.
This moment, push jack 11 is owing to be in the recess of hook-shaped protuberance usually, and hook 12 is in the hook-shaped protuberance recess 20, and fabric 50 is then thrown off from hook 12 when formation opens the stage at that time.
When push jack 11 descended with respect to shank 10 and comb bed 5 with a predetermined stroke, the push jack hooks 12 of ensconcing in the recess 20 of hook-shaped protuberance just withdrawed from therefrom, so that be emerging in groove 17 (Figure 16-b) of the front that is positioned at shank 10.
Then, descend, make the hook 12 of push jack 11 they be caught (Figure 17) thus at the cross section of setting up yarn 75a, 75b with the comb 6 that opens that is in the push jack hook 12 in the groove 17; And in this state, the comb 6 that opens is dropped on a upper end (hook-shaped protuberance recess 20) that makes needle for setting up fabrics and the irrelevant position of disturbing of yarn feeder passage (Figure 16-c).
When arriving this state, shown in Figure 15-c, be used to after above-mentioned after the stroke setting up yarn 75b, open yarn 75c, 75d of two-stroke row will feed on R, R, F, the F of forward and backward needle-bar, being woven into the tubular row, and be begun by pin R, form the start-up portion of the rib-loop line 75a of first stroke at this pin place, thus, ensue a mouthful line 75c, the fabric after the 75d i.e. braiding serially goes down.
Like this, just a fabric can be played good mouthful according to method of the present invention.Forming setting up 75c, 75d and forming continuously in the braiding process of braided fabric 50, the comb 6 that opens is to descend gradually pari passu according to the braiding speed of fabric 50, the knit operation process of fabric 50 is successfully realized, meanwhile, keep setting up 75c, 75d and the fabric 50 that weaves in rapid succession all is in (Figure 18 and Figure 19) under the desired tension force condition thereon.
The device that opens is to settle like this, after fabric 50 has been woven into a length that requires, when each push jack 11 carries out corresponding shank 10 and combs bed 5 upwards promoting with a predetermined stroke α by a push jack lifting device 24, also woven a segment length on the fabric 50, setting up yarn 75a, the 75b that be meshed with each hook 12 this moment falls facing to the lower end 20a of protuberance recess 20.In the time of like this in hook 12 is contained in each corresponding protuberance 20, yarn is just thrown off with hook 12.Because the bottom 20a of each hook-shaped protuberance recess 20 is forward-facing downward-sloping, catch so just can not be highlighted portion 20 by the setting up yarn 75a, the 75b that throw off on the hook 12.Thereby (Figure 20) thrown off with the comb 6 that opens in the lower end of fabric 50.
When the above-mentioned novel method of opening adopted a kind of elastomeric yarn to implement as the setting up yarn, the upper end of the needle for setting up fabrics 4 that each engages with setting up yarn 75a, 75b can drop to one very reposefully to be made on the height that is lower than gap 3 that yarn do not take place to disturb with the reach of knitting needle.In addition, fabric 50 is being carried out in the knit operation process, one evenly and the elastic stretching power of appropriateness just is applied on the whole width of fabric 50, thereby fabric 50 through braiding can be descended reposefully and any coil does not take place come off.
In Figure 18 to Figure 20, show such a case among the figure, promptly drop to one when being lower than master file and getting the height of a pair of roller 51,52 of mechanism 48 when the lower end of fabric 50, open comb 6 just with fabric 50 disengagements.But, adopt the device that opens of the present invention, upwards promote with respect to the shank 10 of correspondence as long as simply push jack 11 is carried out, thereby make each and setting up yarn 75a, the hook 12 of the push jack 11 that 75b engages enters the recess of the hook-shaped protuberance that is positioned at corresponding shank 10 upper ends, and the setting up end of the fabric 50 that is engaged by hook 12 and the comb 6 that opens are thrown off, and ignore comb 6 the upper end (recess 20 of hook-shaped protuberance) and do not need the lower end of fabric 50 is reduced to of opening, for example be lower than a pair of roller 53 of assisting spooler, on 54 the height.
This means, no matter how the length that opens of fabric 50 lacks, when needing at which position, open comb 6 just can with fabric 50 disengagements.
As under the situation as shown in giving an example, auxiliary spooler 49 is arranged near the below in gap 3 and is higher than the place that master file is got mechanism 48, just the fabric 50 of braiding can utilize the comb 6 that opens to drop on the height of an a pair of roller 53,54 that is lower than auxiliary spooler 49 (Figure 18), the comb 6 that opens is thrown off with fabric 50, and fabric 50 still remains between the roller 53,54, and fabric 50 just can utilize auxiliary spooler 49 tractives to drop to one to be in master file and to get on the position in the working range of roller 51,52 of mechanism 48 like this.
Can clearly be seen that by top description, the above-mentioned novel method of opening is such, and the fabric that is woven is to carry out downward tractive from the directive effect that is in pad gap rib-loop row yarn crossovers point between forward and backward needle-bar in the two-stroke rib-loop line of the fabric of previous formation by the comb that opens.Therefore, according to this method that opens, setting up is to form like this, promptly the initial yarn coil that opens is to form outside the position of a needle for setting up fabrics, make the position that can be dropped to a yarn feeding end that opens the most close by the lower end of braided fabric thus, and opening of forming outside by a kind of needle for setting up fabrics of another two-stroke setting up (tubular line) woven after the coil continuously, knits the tubular line thereby subsequently fabric is woven in rapid succession always.Therefore, this coil that this a kind of needle for setting up fabrics outside forms, when it is driven when descending by a needle for setting up fabrics, the drafting force of the comb that opens that it is suffered can not driven drafting force suffered when descending by other needle for setting up fabrics greater than other coil.Therefore, a uniform tensile force just is applied on the whole width of the fabric that engages with the comb that opens.
Therefore, according to this novel method, can normally weave and can not take place fabric as the sort of distortion that in the method for prior art, often runs into, nor can for example come off as the difficulty in the method for prior art, running near fabric limit part generation coil.
According to this novel method that opens, for fabric is descended, making open the comb act on the pad be placed on before, on the crossover sites of the two-stroke setting up that had before formed on top, the gap fabric between the back needle-bar, when opening yarn feeding knitting needle, the comb that opens does not need to stretch out the top, gap as the yarn feeder passage, and therefore method of the present invention is compared with various conventional methods and had various advantages.Be to utilize to open to comb to hook and drop on the height that is lower than this gap just, thereby fabric can be being played good mouth by being on the desired location the previous institute of the yarn two-stroke setting up that forms (rib-loop line) by the yarn feeder feeding.When opening comb when stretching out in the top in gap, need all yarn feeders not remained on waiting on the position of the comb working range outside that opens for fear of as the situation that might collide with the comb that opens that in conventional method, occurs.Can design the needle for setting up fabrics of the comb that opens shortlyer, even because they can also can hook the setting up yarn under the short situation of length; By a kind of like this arrangement scheme, can be with nuclear and the knocking over reposefully of each coil of opening.
Carry out structural design according to above-mentioned requirements, and be suitable for carrying out in the manner described above work, needle for setting up fabrics then of the present invention can successfully be implemented the above-mentioned novel method that opens.
Needle for setting up fabrics of the present invention is a kind of like this device, promptly make it produce upper and lower sliding motion with respect to the shank that matches with it by promoting push jack, thereby make hook portions withdraw from and be contained in this protuberance recess, be convenient to replenish and make the comb that opens be easy to throw off with the setting up coil so that can urge the beginning yarn that opens by corresponding protuberance recess in each push jack upper end; Therefore, this device that opens can make the comb that opens carry out accurately and smoothly engaging with fabric and throw off mutually.In addition, this device that opens is compared with the existing various devices that open and is had tangible advantage aspect the structural strength.
In addition, needle for setting up fabrics of the present invention need be as the coil knocking over mechanism that is adopted in prior-art devices, and this mechanism must act on the fabric by certain altitude above the comb that opens.Therefore, both made under the short situation of fabric length, the combization that opens also can be thrown off by the lower end of fabric.
Claims (1)
1, a kind of needle for setting up fabrics is made up of a shank and the push jack that matches with it, and push jack can is characterized in that this needle for setting up fabrics comprises in the vertical enterprising line slip of shank:
(a) upper end of this push jack has a hook forward-facing, makes the bonding part that itself is connected on the push jack lowering or hoisting gear and have one in its lower end;
(b) this shank has an aft-opening vertical channel to hold the push jack that slides within it on its back portion, and have one and be used for shank is immovably fixed mating part on comb bed in vertical direction, above-mentioned push jack is can be contained in the above-mentioned vertical channel to upper and lower motion in a predetermined stroke with respect to shank at least;
(c) this shank forms a groove forward-facing by partial cut near the previous section of its upper end; And
(d) this shank front side in the top has the recess of a hook-shaped protuberance forward-facing, so then when push jack be advanced to be in the shank at it during high raised position, the hook portion of above-mentioned push jack just is contained in wherein, and when push jack is descended a little by the highest above-mentioned raised position, the hook portion of push jack just is emerging in the place ahead of shank on a groove that just has been lower than above-mentioned protuberance, the top of above-mentioned hook-shaped protuberance recess is forward-facing downward-sloping, and its underpart is forward-facing acclivitous.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1030354A JPH02210046A (en) | 1989-02-08 | 1989-02-08 | Set up method in flat knitting machine and set up device in same machine |
| JP30354/89 | 1989-02-08 | ||
| CN90100422A CN1018370B (en) | 1989-02-08 | 1990-01-23 | Method and means for setting up fabric on flat knitting machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90100422A Division CN1018370B (en) | 1989-02-08 | 1990-01-23 | Method and means for setting up fabric on flat knitting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1065301A CN1065301A (en) | 1992-10-14 |
| CN1023906C true CN1023906C (en) | 1994-03-02 |
Family
ID=25742601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92101555 Expired - Lifetime CN1023906C (en) | 1989-02-08 | 1992-03-07 | Needle for setting up fabrics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1023906C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182667B (en) * | 2007-07-25 | 2010-09-22 | 孙平范 | Bottom rising device of knitting horizontal machine |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408744C (en) * | 2005-11-28 | 2008-08-06 | 冯加林 | Bearded needle |
| EP2072649B1 (en) * | 2007-12-20 | 2011-10-19 | Groz-Beckert KG | Take-off cam part |
| CN101812766B (en) * | 2010-04-02 | 2011-10-19 | 江苏雪亮电器机械有限公司 | Base knitting plate structure of computer flat knitting machine |
| CN101812769A (en) * | 2010-04-02 | 2010-08-25 | 江苏雪亮电器机械有限公司 | Knitting fabric guide plate and needle raising plate lifting linkage mechanism of computer flat knitting machine |
| CN101812764B (en) * | 2010-04-02 | 2011-09-07 | 江苏雪亮电器机械有限公司 | Needle raising plate lifting mechanism of computer flat knitting machine |
| JP6214616B2 (en) * | 2015-11-12 | 2017-10-18 | 株式会社島精機製作所 | Set-up device for flat knitting machine |
-
1992
- 1992-03-07 CN CN 92101555 patent/CN1023906C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182667B (en) * | 2007-07-25 | 2010-09-22 | 孙平范 | Bottom rising device of knitting horizontal machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1065301A (en) | 1992-10-14 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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Granted publication date: 19940302 |