CN1306092C

CN1306092C - Plat knitting machine with adjustable sinker

Info

Publication number: CN1306092C
Application number: CNB031079059A
Authority: CN
Inventors: M·赛拉; H·－G·哈尔藤霍夫; J·莫尔
Original assignee: H Stoll GmbH and Co KG
Current assignee: H Stoll GmbH and Co KG
Priority date: 2002-03-23
Filing date: 2003-03-24
Publication date: 2007-03-21
Anticipated expiration: 2023-03-24
Also published as: ES2273935T3; CN1446969A; EP1347088B1; DE50208648D1; EP1347088A1

Abstract

A flatbed knitting machine has two facing needle beds (1, 2) with longitudinally movable needles (4) with sliding plates (10) held in or freed from their positions by locking stations. The locking stations incorporate a number of different profiled radial cams (31, 33, 35, 37, 40) forming interfaces (21) with the plates (10). The cams define the optimum position of the plates (10) with respect to the movement of the respective needle (4).

Description

Straight-bar machines with adjustable sinker

Technical field

But the present invention relates to have the straight-bar machines of the needle-bar of opposed and its pin longitudinal sliding motion, between needle-bar, be provided with the sinker that to adjust by the needle cam of a cam carrier.

Background technology

The task of these sinkers is to block the coil that hangs on the pin when enduring needle movement.In addition, they also will make the coil that has moved back circle no longer upwards be pushed from needle-bar tooth mouth slit.The fact shows that this task can't only be finished by the coil apparatus that moves back of straight-bar machines.

From the applicant's DE3935763C2, know a kind of sinker holding device, wherein except a fixed looping mechanism, be respectively equipped with a rotating sinker holding.The motion of these sinker holdings and affiliated pin is irrespectively controlled by a unmodifiable cam track, as the applicant's DE4337776A1 is disclosed.It is real that require and be best cam track to variant knitting operation that the design of these cam tracks will be taken into account those exactly, described knitting operation for example be lopping or form tuck, deliver coil, receiving coil or deliver simultaneously and receiving coil.But concerning the knitwear of complexity, this to take into account measure usually be not enough.

Thereby the applicant's DE19704664A1 discloses a kind of sinker holding device, and wherein these sinker holdings are controlled by a changeable cam track of its some part.By this device, can satisfy different requirements better than previous solution to the sinker holding motion that is used for knitting functions such as lopping and barring-on.Certainly, this improvement only limits to barring-on, and wherein in check opening movement can carry out in one section cam track.This improved device can not satisfy the knitting technology requirement of making complicated knitwear and especially cylinder knitting finished product.

Summary of the invention

Task of the present invention is to propose a kind of straight-bar machines, wherein makes very complicated knitwear if any, also can realize the sinker holding motion best.

In order to finish this task, the invention provides a kind of straight-bar machines, it has the needle-bar that opposed and pin can be longitudinally-slidable, between described needle-bar, be provided with the sinker that to adjust by the needle cam of a cam carrier, this needle cam is formed for being arranged on a plurality of control cam tracks that control surface on these sinkers applies effect, these control cam tracks produce a sinker position concerning the motion of affiliated knitting needle respectively, it is characterized in that, be not subjected to the time spent of doing of described control cam track when the control surface of described sinker, described sinker remains on its maximum open position by spring, and wherein said spring and described sinker are integral.

In a preferred implementing form, needle cam is can be for each presumable and be used for lopping or form tucked loop, be used to deliver coil, be used for receiving coil and the knitting needle motion that is used for delivering simultaneously with receiving coil forms an independent control cam track, so that sinker under the location best.Like this, the sinker of selecting according to the motion of corresponding knitting needle is independently controlled cam track with regard to always having four.Thereby, just can produce knitwear with the quality that can't obtain so far.

In addition, needle cam can form one or more additional control cam tracks that are used for the sinker opening movement, and this opening movement is not to need because of knitting needle motion, but needs as thread-carrier or knocking over part because of other element.For example for fear of the collision thread-carrier, this opening movement of sinker is essential.

This straight-bar machines also has and is used for only starting selectively the needle selection spare of those required sinkers.On the contrary, in the former straight-bar machines, all sinkers all move together.

Sinker can rotatably be provided with by known way, and here, they can stepless rotation between a maximum open position and maximum closed position.In addition, to the normal operation mode of sinker advantageously, when the time spent of doing of the uncontrolled cam track of control surface of sinker, these sinkers remain on its maximum open position by spring.In this way, guaranteed that sinker is always on the resting position of a regulation.In addition, spring can be made the form that one and preferred design become flexural spring with sinker.

The sinker of forward and backward needle-bar can be designed to be identical and can to enter same closed position.But, also forward and backward needle-bar can be designed to be different and/or make them move to different closed positions.

In order to guarantee best gripping function, when the sinker of forward and backward needle-bar was all on its maximum closed position, described sinker just upwards was enclosed in the needle-bar tooth mouth slit between the knocking over steel wire on the needle-bar.

More advantageously, can under moving to, cam carrier adjust in the process on the needle-bar at these sinkers on the closed position.Therefore, the sinker motion can be adapted to the coil size separately and the yam count of knitting needle.

For needle-bar is offsetted smoothly, when needle-bar offsetted, the motion of control cam track can make sinker be opened to such position always, promptly on this position, they can touch the sinker of opposite needle-bar again, but have brought into play big as far as possible gripping effect.

Can differently select the shape of sinker holding.In a preferred design, sinker has a working face of being made up of a plurality of parts, and one of them partial action is in the coil of attached needle-bar, and a partial action is in the coil below the knocking over steel wire.In addition, this sinker also has a part that acts on the coil of opposite needle-bar.

Description of drawings

Below describe the sinker of straight-bar machines of the present invention and the preferred embodiment of sinker controlling organization with reference to the accompanying drawings in detail.Be illustrated as:

Fig. 1 is that figure cuts open in the straight-bar machines office perpendicular to the machine longitudinal axis in the lopping district;

Sectional view when Fig. 2 amplifies expression sinker complete opening corresponding to Fig. 1;

Fig. 3 is the sectional view corresponding to Fig. 2 when the sinker of a needle-bar is closed fully;

View when Fig. 4 represents that a sinker holding is in unselected inactive state corresponding to Fig. 2;

Fig. 5 is the part figure at the tip of sinker holding shown in Figure 3;

Fig. 6 is the schematic diagram that is used for the control cam track of lopping, and it has an affiliated control cam track that is used for sinker;

Fig. 7 is a schematic diagram of coil being handed to the control cam track of opposite needle-bar, and it has an affiliated control cam track that is used for sinker;

Fig. 8 is the schematic diagram of control cam track and spacing track cooperating.

The specific embodiment

In Fig. 1 sectional view, show the preceding needle-bar 1 and the back needle-bar 2 of the straight-bar machines in the lopping district.Be provided with looping mechanism 3 and sinker holding 10 on knitting needle 4 next doors.In addition, clamped the knocking over steel wire 5 that is used for coil along needle-

bar

1,2.

Sinker holding 10 has a needle selection spare that has needle selection slide block 23, and this needle selection slide block can move on double-head arrow 50 directions.By a telecontrol equipment that is not shown specifically, can adjust one group of different needle track in the control cam track 30, these needle tracks act on the working face of the needle selection spare 20 of sinker 10 on double-head arrow 40 directions, thereby they can make sinker holding 10 rotate to different closed positions and enable possition by needle selection spare 20.Needle selection spare 20 is positioned on the needle selection position of Fig. 1, and therefore, control cam track group 30 can act on the sinker holding 10.By unshowned selection mechanism, needle selection spare 20 can move to this position from a resting position shown in Figure 4 by needle selection slide block 23.

After Fig. 2 needle-bar 2 for example show the functional part of sinker holding control device.Sinker holding 10 can support rotatably around axis 6.In addition, this rotatablely moving limited by a round bar 7 that passes a long arc-shaped holes 12.But the maximum enable possition of sinker holding 10 is by stop surface 13 restrictions of slotted hole 12, but and the maximum closed position is limited by stop surface 14.Sinker holding 10 and a butterfly spring 11 form a unit.Abutment face 11.1 of butterfly spring 11 usefulness is abutting under the pretightning force effect on the round bar 8, makes the face 13 of slotted hole 12 contact round bar 7 all the time thus, and sinker holding then is fixed on its maximum open position.

The needle selection spare 20 that can be connected with sinker holding 10 with longitudinal sliding slides into the needle selection position by needle selection slide block 23, needle selection slide block 23 is stressed on the direction of arrow 51 by a unshowned selecting arrangement, and this needle selection position is exactly in the zone of influence that is arranged at the control cam track group 30 on the chain of command 21 of needle selection spare 20.Thereby sinker holding 10 is rotated away from a control cam track.Control cam track group 30 is formed by controlling

cam track

31,33,35 and 37, and these needle tracks make sinker 10 produce closing movements.The

spacing track

32,34 and 36 that restricted sinker is opened between these

control cam tracks

31,33,35 and 37.Shown in these

control cam tracks

31,33,35 and 37 in, make sinker 10 realize optimal movements when for example needle track 31 can and form tucked loop in lopping, needle track 33 can be realized the optimal movement that coil is delivered; Needle track 35 is used for delivering and receiving of coil, and needle track 37 is used for coil and receives.Spacing track 32 is attached troops to a unit in control cam track 31, and spacing track 34 is attached troops to a unit in needle track 33, and spacing track 36 is attached troops to a unit in needle track 35.

Also show another control cam track 40, it bears a stage clip 41 on arrow 42 directions power.Control needle track 40 causes the sinker opening movement, and this motion and knitting needle tracks do not have getting in touch on the function, and resembles as need such motion with the thread-carrier yarn feeding.

Fig. 3 there is shown the effect of the chain of command 21 of

control cam track

31 and 32 pairs of needle selection spares 20 of spacing track in the cross section corresponding to Fig. 2.Control cam track 31 and affiliated spacing track 32 slide on the direction of

arrow

41 and 42 by a device that is not shown specifically.Thus, sinker 10 realized around the rotatablely moving of axis 6, and touches round bar 7 up to the face 14 of slotted hole 12, and sinker 10 is located on its maximum closed position.Spacing track 32 is used to limit the opening movement of sinker 10, as Fig. 8 shown in detail like that.No matter be control needle track 31 or spacing track 32, they can steplessly slide, and so, always can produce the optimum movement locus of sinker 10.

Fig. 4 shows sinker 10 on its resting position with the view corresponding to Fig. 2.Needle selection spare 20 slides on the off-position along the direction of arrow 52 by needle selection slide block 23.Chain of command 21 no longer is positioned at control cam track group 30 times, thereby control

needle track

31,33,35 and 37 now just can't influence sinker 10 again.Now, control cam track 40 can not act on sinker 10, this be because the affiliated working face 22 of needle selection spare 20 equally to lower slider.Shown on the resting position, sinker 10 is on its maximum open position because of the effect of spring 11.

Fig. 5 shows an amplification part of sinker 10 shown in Figure 3.As shown in the figure, sinker 10 has a working face 15, and this working face is made up of a plurality of parts 16,17 and 18.Working face 16 acts on the coil of the back needle-bar 2 under the sinker holding 10.Part 18 acts on the coil that is positioned under the knocking over steel wire 5.And act in the part on the tip of sinker 10 17 on the coil of opposed needle-bar 1.

It is the cooperating situation of best sinker 10 control cam tracks 31 that Fig. 6 shows that the needle track 60 that is used for lopping moves with a pair of this.The direction of motion of controlling

cam track

60 and 31 is shown in the direction of arrow 55.The central axis of a whole set of knitting equipment is represented with 65.As long as owing to satisfy the requirement of lopping interests by the sinker holding 10 that moves of control needle track 31, thus can design

best part

70,70 ' and 70 ", in these parts, these sinker holdings 10 must be on the closed position.This be equally applicable to

part

80,80 ' and 80 ", in these parts, caused the closing movement of sinker 10.Equally,

part

90,90 ' and 90 " on, the lift of needle track 31 can satisfy the requirement of the opening movement that causes sinker 10 best.In addition, so form control cam track 31, promptly also can satisfy the not directly requirement relevant with lopping.Thereby 70 li of parts, sinker holding just enters closing position, can penetrate reliably in the pinhock of first knitting needle so that make at the yarn that floats on a plurality of knitting needles, and this knitting needle forms coil with this yarn.Part 80 ' in, cause a closing motion for this reason, in part 90 ' lining, cause an opening movement.

Fig. 7 shows the example that is used for coil is handed to control cam track 33 under cam track 60 of knitting needle of opposed needle-bar and.The

cam track

60 and 33 the direction of motion are again on the direction of arrow 55.Central axis with 65 indication equipments.

The sinker holding 10 that moves by control cam track 33 must only satisfy the requirement of delivering coil.Thereby, can design part 70 best, in this part, sinker holding must be on closing position.

This is equally applicable to wherein cause the part 80 of closing motion.90 li of parts, cause opening movement.If so make Fig. 6, overlapping about in the of 7, promptly central axes is then obviously seen the part 70 (sinker is closed), 80 (importing closing motion) and the

part

70,80 of the relative needle track 33 of 90 (causing opening movement) and 90 slip of controlling cam track 31.

Fig. 8 with control cam track 31 be example show the cooperating situation of a spacing track 32 of this needle track and sinker opening movement.Make control cam track 31 on arrow 41 directions, enter the operating position by a unshowned telecontrol equipment.By its profile, strictness defines the process of sinker control.The closed degree of depth of sinker 10 is moved how far to come along arrow 41 directions by control cam track 31 and is determined.Spacing track 32 moves into the operating position by unshowned telecontrol equipment with it abreast on arrow 42 directions.In addition, but spacing track is allowed as the shape reality according to control cam track 31 with surface 32 ' define the maximum opening movement.Spacing track 32 can infinitely enter control cam track section 31 ' and 31 " between each position on.

Claims

1. straight-bar machines, it has the needle-bar (1 that opposed and pin (4) can be longitudinally-slidable, 2), between described needle-bar, be provided with the sinker (10) that to adjust by the needle cam of a cam carrier, this needle cam is formed for being arranged on a plurality of control cam tracks (31 that control surface (21) on these sinkers (10) applies effect, 33,35,37), these control cam tracks produce sinker (a 10) position concerning the motion of affiliated knitting needle (4) respectively, it is characterized in that, when the control surface (21 of described sinker (10), 22) be not subjected to described control cam track (31,33,35,37) do the time spent, described sinker (10) remains on its maximum open position by spring (11), and wherein said spring (11) is integral with described sinker (10).

2. by the described straight-bar machines of claim 1, it is characterized in that, this needle cam is presumable and be used for lopping or form tucked loop, be used to deliver coil, be used for receiving coil and the knitting needle motion that is used for delivering simultaneously with receiving coil forms an independent control cam track (31 for each, 33,35,37), so that the affiliated sinker (10) in location.

3. by the described straight-bar machines of claim 1, it is characterized in that this needle cam forms one or more additional control cam tracks (40) that are used for the sinker opening movement, this opening movement needs because of thread-carrier or knocking over part.

4. by the described straight-bar machines of claim 2, it is characterized in that this needle cam forms one or more additional control cam tracks (40) that are used for the sinker opening movement, this opening movement needs because of thread-carrier or knocking over part.

5. by one of claim 1 to 4 described straight-bar machines, it is characterized in that this straight-bar machines has the needle selection spare (20) that is used for only starting selectively those required sinkers (10).

6. by one of claim 1 to 4 described straight-bar machines, it is characterized in that described sinker (10) rotatably is being provided with.

7. by the described straight-bar machines of claim 6, it is characterized in that described sinker (10) can stepless rotation between a maximum open position and maximum close position.

8. by one of claim 1 to 4 described straight-bar machines, it is characterized in that the sinker (10) of described forward and backward needle-bar (1,2) can move on the identical or different closing positions.

9. by one of claim 1 to 4 described straight-bar machines, it is characterized in that, when the sinker (10) of described forward and backward needle-bar (1,2) all is in the maximum close position, described sinker (10) has just upwards sealed the needle-bar tooth mouth slit between the knocking over steel wire (5) on the described needle-bar (1,2).

10. by one of claim 1 to 4 described straight-bar machines, it is characterized in that, is adjustable in the process of the described sinker (10) on closing position above cam carrier moves to affiliated needle-bar (1,2).

11. by one of claim 1 to 4 described straight-bar machines, it is characterized in that, when described needle-bar offsets, can so make described control cam track (31,33,35,37) motion, promptly described sinker (10) is opened to a position always, on this position, they can't touch the sinker (10) of opposite needle-bar (1,2) again, but still performance gripping effect.

12. by one of claim 1 to 4 described straight-bar machines, it is characterized in that, described sinker (10) has a working face (15), it is by a plurality of parts (16,17,18) form, first wherein (16) acts on the coil of the needle-bar (2) in described preceding needle-bar and the back needle-bar, and second portion (18) acts on the coil under knocking over steel wire (5).

13., it is characterized in that described sinker (10) also has third part (17) by the described straight-bar machines of claim 12, it acts on the coil of another needle-bar (1) in described preceding needle-bar and the back needle-bar.