The cam system that is used for straight-bar machines
Technical field
The present invention relates to a kind of cam system for straight-bar machines, it has at least one pin triangle (Nadelschloss), lopping and transfer cam that described pin triangle is configured to make up, utilize described pin triangle, but the triangular portions (Schlossteil) by the part transposition, can produce the different channel plot (Durchgangskurve) for the transmission pin of the knitting needle that is arranged in the needle-bar needle tray, in order to realize the lopping of carrying out of knitting needle, form tuck, the function of barring-on and adapter ring (Maschen ü bernahme), described pin triangle has two sitch cams about its center line symmetric arrangement.
Background technology
For example by US 4,729, the lopping and the transfer cam that are used for straight-bar machines of 230 known this combinations, it has a plurality of adjustable triangular portions that is positioned at the sitch cam inboard.Utilize these cam systems, knitting needle can be according to desirable function: lopping, form tuck, barring-on or adapter ring is endured out and rollback again.But also can't utilize at present the triangular portions on the pin triangle, the out position of enduring of regulating knitting needle according to the style that remains to be woven or the yarn that uses.
Summary of the invention
Thereby the objective of the invention is to, a kind of cam system is provided, it allows the very out position of adaptive adjustment knitting needle so individually.Here, the structure width of pin triangle can not become big.
This purpose is by the cam system of the described type of the beginning part, take following measure to realize, but the additional triangular portions that transposition is namely arranged in the sitch cam disposed inboard utilizes these additional triangular portions can regulate the very out position of knitting needle, is used for carrying out lopping, barring-on and/or pad yarn.
Utilization is arranged in the additional triangular portions of sitch cam inboard, can be according to the very out position of adaptive adjustment knitting needle best of the corresponding requirements on the knitting technology.Thereby can when regulating knitting position, consider employed hosiery yarns, style to be formed is arranged, and the pinhock shape of also considering employed knitting needle, particularly knitting needle.Straight-bar machines can be shortened thus to the adjustment time of new variety, and the operational reliability of machine can be improved.Additional triangular portions is arranged in the sitch cam inboard can makes that the structure of pin triangle is narrow.So just a plurality of knitting systems can be arranged on the machine, and can shorten the knitting time.
Set an additional triangular portions preferably can for each sitch cam.But set a plurality of additional triangular portions also can for each sitch cam.
But additional triangular portions preferably can be the slide plate (Schieber) of straight line transposition.Can transfer relatively simply thus and establish additional triangular portions.
Can actuate additional triangular portions in different ways.The transposition of can relevant sitch cam with it coming together of these additional triangular portions, and/or be independent of described sitch cam and carry out transposition.If jointly mobile with sitch cam, then can be so that additional triangular portions be related with the movable machinery ground of sitch cam.In this case, oneself driving mechanism of additional triangular portions will be saved.Can preestablish additional triangular portions in this case with respect to the relative position of sitch cam.On the contrary, if the driving mechanism that oneself is set for additional triangular portions stepper motor for example, the motion that then can be independent of remaining triangular portions is transferred and is established additional triangular portions.In this case, can and style to be generated be arranged according to employed knitting needle, employed yarn, the selectively adaptive adjustment knitting needle of freedom is endured out position, is used for carrying out lopping, barring-on and pad yarn.
A kind of decision design according to cam system, pin triangle accent is made as stitch cam, this stitch cam has sitch cam forward on the cam system moving direction and relevant additional triangular portions, can regulate the maximum of knitting needle and endure out position, is used for carrying out lopping.In this case, additional triangular portions preferably is in identical height and position with sitch cam in triangle.When the pad yarn, can utilize the additional triangular portions of the inboard that is arranged at the sitch cam after the cam system moving direction leans in addition, regulate the very out position of knitting needle.It is the basic premise of knitting machine reliability service that the reliable ground cushion of yarn is placed in the pinhock.Utilize the additional triangular portions of back sitch cam, can optimize needed knitting needle position for this reason according to employed yarn and knitting needle pinhock shape.The pin triangle does not have view and is made as stitch cam and still transfers and be made as transfer cam, can utilize this function of additional triangular portions.If the pin triangle is made as transfer cam by accent, then for example also can be when forming so-called compound coil the pad yarn.
If the pin triangle is made as transfer cam by accent, then can utilize sitch cam forward on the cam system moving direction to regulate the very out position of knitting needle, be used for carrying out the coil predraft, and can utilize relevant additional triangular part to assign to regulate the very out position of knitting needle, be used for carrying out barring-on.
A kind of decision design according to cam system, the pin triangle can have two shake-up positions that are spaced apart from each other on each direction of motion of cam system, touch the position at these, as stitch cam or establish the position as the accent of transfer cam and decide, one of channel plot that knitting needle transmission pin respectively can be different with two engages on the pin triangle.With knitting needle remain be divided into two needle selection positions that are used for the pin heel by four different motion processes that the pin triangle causes, wherein in each needle selection position, but establish the triangular portions of transposition by accent, can form one of two feasible channel plot respectively, thus, cam system utilizes beguine just to be enough to be competent at according to the few triangular portions of the pin triangle of prior art.According to a kind of preferred design, first touches location arrangements in before sitch cam forward on the cam system moving direction, and second touches location arrangements after this sitch cam.So sitch cam is with the additional triangular portions that is positioned at its inboard, to per two different channel plot formation lateral limitation of knitting needle transmission pin.
Here further preferably, when the pin triangle is made as stitch cam by accent, touch the position first and make knitting needle transmission pin engage with this pin triangle, can utilize knitting needle to carry out lopping, carry out described joint and touch the position second, can utilize knitting needle to form tuck.Correspondingly, when the pin triangle is set as transfer cam by accent, touches the position first and make knitting needle transmission pin engage with this pin triangle, can utilize knitting needle to carry out barring-on, carry out described joint and touch the position second, can utilize knitting needle to carry out adapter ring.Thereby be made as stitch cam or transfer cam according to the pin triangle by accent, can touch the position first and between lopping or barring-on, select, and can touch the position second and forming between tuck and the adapter ring and select.
Utilize the pin triangle of cam system of the present invention, preferably can move the knitting needle that has only a transmission pin.Compare with the knitting needle with a plurality of actuating pin, have only the knitting needle length of a transmission pin shorter.
Further advantageously, can make the position of knitting needle transmission pin from be deposited in needle-bar carry out the transition to the position that protrudes from needle-bar in the shake-up position.This point for example can utilize needle selection and/or sinker cam unit to carry out.But also can be under the non-needle selection situation of knitting needle, by the elastic segments of depressing cam part or knitting needle knitting needle transmission pin is deposited in the needle-bar.
Description of drawings
The contrast accompanying drawing is introduced the preferred embodiment of cam system of the present invention in detail below.
Accompanying drawing illustrates:
Fig. 1 a is the schematic diagram with knitting needle of intact transmission pin;
Fig. 1 b is for being transferred the schematic diagram of the pin triangle that is made as stitch cam, the passage of the intact transmission pin of knitting needle shown in it;
Fig. 2 a is the schematic diagram with knitting needle of the transmission pin of being touched;
Fig. 2 b is the schematic diagram that is made as the pin triangle of stitch cam by accent of Fig. 1, the possible channel plot of the knitting needle transmission pin of being touched shown in it;
Fig. 3 has wherein carried out feasible transposition to triangular portions for the schematic diagram that is made as the pin triangle of stitch cam by accent of Fig. 1;
Fig. 4 a is the schematic diagram with knitting needle of intact transmission pin;
Fig. 4 b is the schematic diagram that is set as the pin triangle of transfer cam by accent of Fig. 1, the passage of intact transmission pin shown in it;
Fig. 5 a is the schematic diagram with knitting needle of the transmission pin of being touched;
Fig. 5 b is the schematic diagram that is made as the pin triangle of transfer cam by accent according to Fig. 4, the possible channel plot of the transmission of knitting needle shown in it pin;
Fig. 6 has wherein carried out feasible transposition to triangular portions for the schematic diagram that is made as the pin triangle of transfer cam by accent of Fig. 4.
The specific embodiment
Fig. 1 a, 2a, 4a and 5a are the schematic diagram of knitting needle 200, and this knitting needle has the transmission pin 210 that is arranged on its end, and this transmission pin can limitedly swingingly be arranged on the elastic segments 220 of shank 230.Knitting needle 200 is arranged in needle-bar 250.Shown knitting needle 200 only is exemplary.Also can utilize the pin triangle shown in the figure to actuate the needle construction that other has the transmission pin, the position that described transmission pin can be in being deposited to needle-bar and rise to transposition between the position above the needle-bar.
In Fig. 1 a, the transmission pin 210 of knitting needle 200 is not touched.In this state, this transmission pin does not protrude from shank 230, thereby can not engage with the pin triangle 100 shown in Fig. 1 b.Transmission pin 210 thus between its moving period on the direction of arrow 110 along the horizontally extending line 300 shown in the chain-dotted line through pin triangles 100.Knitting needle 200 is not endured out.
Pin triangle 100 according to Fig. 1 b is made as stitch cam (Strickschloss) by accent.This stitch cam has in sitch cam forward on the direction of motion 110 (Abzugteil) 120 and the sitch cam 130 after leaning on.The triangular portions 140 of jumper shape, 150 and sitch cam 120,130 be rigidly connected.Be respectively arranged with the additional triangular portions 160,170 of slide plate shape structure in sitch cam 120,130, in institute's demonstration example, these additional triangular portions directly abut on the relevant sitch cam 120,130.Triangle 100 is symmetrical structure about its center line M, so that two directions of motion of the cam system under pin triangle 100 realize identical knitting needle motion, is provided with trapezoidal static triangular portions 180 in the center of this triangle.At this adjustable triangular portions 190 is arranged above the static triangular portions, the triangular portions that this is adjustable is trapezium structure as triangular portions 180.Transposition triangular portions 190 and the preceding sitch cam 120 that has the additional triangular portions 160 in relevant inboard just can be turned pin triangle 100 and be transfer cam by stitch cam.Can be the transmission pin 210 that position AS1 or AS2 touch knitting needle 200 two different positions, but situation shown in Figure 1 be really not so, that is to say, is not to utilize pin triangle 100 to come mobile knitting needle 200.
Fig. 2 b illustrates pin triangle 100 and also is made as stitch cam by accent.All triangular portions 120,130,140,150,160,170,180 and 190 all is positioned at and position identical shown in Fig. 1 b.But according to Fig. 2 a, the transmission pin 210 of knitting needle 200 is touched now, thereby this transmission pin protrudes from shank 230, thereby can be clamped by pin triangle 100.If position AS1 touches in shake-up, then transmission pin 210 is endured out by preceding sitch cam 120 along chain-dotted line ST, through the passage between sitch cam 120 and the jumper shape triangular portions 140, through additional triangular portions 160, next be attached triangular portions 170 and move down again with back sitch cam 130 then.If transmission pin 210 moves along channel plot ST, then can utilize relevant knitting needle 200 to form coil.On the contrary, if sitch cam 120 and the shake-up position AS2 after the relevant additional triangular portions 160 just touch the transmission pin 210 of knitting needle 200 before being arranged in, then transmission pin 210 is through the additional triangular portions 160 of preceding kinking trigonometric sum, next move along channel plot FA, next this channel plot stretches downwards again along back sitch cam 130 along triangular portions 160, one side of 190.If transmission pin 210 moves along channel plot FA, then can utilize relevant knitting needle 200 to form tuck.
The upper end with relevant additional triangular portions 160 of preceding sitch cam 120 jointly forms a coil and endures out regional MB, and when lopping, this coil is endured out the very out position that knitting needle is determined in the zone.The lower end of additional triangular portions 170 has then formed a pad yarn zone FB, when the pad yarn, utilizes this pad yarn zone to determine the knitting needle position.
Fig. 3 illustrates the transposition scheme of each triangular portions of pin triangle 100 now, and this pin triangle is as be made as stitch cam by accent in Fig. 1 and 2.Before sitch cam 120 can be along double-head arrow 125,165 direction transposition as additional triangular portions 160, wherein two parts 120,160 motion can be mechanically related, but also can be independent of one another.By this transposition campaign, triangular portions 120,160 and 140 can be in the position shown in the solid line, perhaps for example can be in the position shown in the dotted line.When lopping, utilize triangular portions 120 and 160 can determine the height of enduring out of knitting needle.Additional triangular portions 170 also can be regulated the knitting needle position thus point-blank along double-head arrow 175 transposition when the pad yarn.
In Fig. 1 a, Fig. 4 a illustrates knitting needle 200 and is in intact position.Transmission pin 210 can not be clamped by pin triangle 100.Thereby as among Fig. 1, this transmission pin is at horizontal rail 300 process triangles 100.But opposite with Fig. 1 b, Fig. 3 b illustrates pin triangle 100 and is set as transfer cam by accent.Be made as the situation of stitch cam than accent, preceding sitch cam 120 with triangular portions 140 and additional triangular portions 160 upwards transposition one segment distance.Triangular portions 190 is upwards transposition also, thereby produces a passage between two triangular portions 180 and 190.
Fig. 5 a illustrates the knitting needle 200 with the transmission pin 210 of being touched now.Transmission pin 210 can be clamped by pin triangle 100 now, and shown pin triangle also is made as transfer cam by accent.Here, touching position AS1 or touching the heel of position AS2 shake-up pin.If AS1 touches in the position, transmission pin 210 moves along channel plot ü G, this channel plot stretches upwards along sitch cam 120, between sitch cam 120 and jumper shape triangular portions 140, pass, through additional triangular portions 160, stretch downwards again at additional triangular portions 170 and sitch cam 130 places, back in the back.If transmission pin 210 moves along curve ü G, then knitting needle 200 is endured out, in order to carry out barring-on.On the contrary, if touch transmission pin 210 at position AS2, the transmission pin 210 of then being touched not yet is through preceding sitch cam 120 and additional triangular portions 160, move along channel plot ü N then, between triangular portions 180 and 190, pass, arrive sitch cam 130, and move down again at this sitch cam place.If transmission pin 210 moves along channel plot ü N, then can utilize knitting needle 200 to carry out adapter ring.
If touch transmission pin 210 at position AS1, this transmission pin and then move along curve ü G, then the upper end of preceding sitch cam 120 forms coil predraft zone VB, the upper end of additional triangular portions 160 forms barring-on zone M ü, when carrying out barring-on, the very out position of knitting needle 200 is determined in this barring-on zone.The lower end of the additional triangular portions 170 after the direction of motion 110 of pin triangle 100 is leaned on also forms pad yarn zone FB, and the very out position of knitting needle is determined in this pad yarn zone when the pad yarn, for example be used for braiding compound coil (Split-Masche).
Fig. 6 illustrates the pin triangle 100 corresponding to Fig. 3, and it is made as transfer cam by accent.Triangular portions 190 has promoted leaves static triangular portions 180, and remains on this position.Before sitch cam 120 can move with the triangular portions 140 of the jumper shape direction straight line along double-head arrow 125.The additional triangle 160 that is positioned at sitch cam 120 inboards also can transposition on the direction of double-head arrow 165.Here, this transposition can be carried out with the transposition of sitch cam 120 relatedly, but also can irrespectively independently carry out with it. Triangular portions 120 and 160 can be in the position shown in the solid line thus, and for example can be in the position shown in the dotted line.Here also can for example make additional triangular portions 160 be in the position higher than sitch cam 120.So the position of the coil predraft zone VB shown in Fig. 5 b is lower than barring-on zone M ü.Also can for example make additional triangular portions 160 be in the position lower than sitch cam 120.So the position of the coil predraft zone VB shown in Fig. 5 b is higher than barring-on zone M ü.
The additional triangle 170 that is positioned at sitch cam 130 inboards, back also can produce the diverse location of pad yarn zone FB thus along the direction transposition point-blank of double-head arrow 175.