JPS5938478Y2 - Carriage for lace knitting in knitting machines - Google Patents

Description

[Detailed description of the invention] The present invention is based on a carriage for lace knitting in a knitting machine that performs a stitch passing action of passing a part of the stitch suspended from a front selection knitting needle to a specific rear selection knitting needle. It is about improvement.

Conventionally, as shown in FIG. 7A, the front portion of the front selection knitting needle N1 with the stitches K suspended on the open collar is guided by a needle actuating member behind the front selection knitting needle N1. After horizontally moving above a specific back-selecting knitting needle N2 in a crossed state, the back-selecting knitting needle N2 is advanced by a forward cam to engage a portion of the stitch with its hook, and then, as shown in FIG. As shown in FIG. A carriage for lace knitting has been proposed in which the front portion of the front selection knitting needle N1 is returned from the lateral movement position to the original position by a needle return member using a needle 11 extending over N2.

However, according to this, in particular, the front selection knitting needle N
When returning the front part of 1 from the lateral movement position to the original position,
Due to the vibration of the front selection knitting needle itself that occurs with its sudden return, the stitches often slide backward on the front selection knitting needle N1 and open the latch R, as shown in Figure 7. The needles may come off at the rear of the end, and as a result, the two braided needles Nl and N2
When the stitch is moved backward from the knockover position 1, the stitch 11 that originally hung between the hooks of both set needles Nl and N2 is placed in the stitch.
A fatal drawback has arisen in that what should have been the knitting needle is knocked over from the front selection knitting needle N1 and transferred to the rear selection knitting needle N2.

However, in order to eliminate the drawbacks of the conventionally proposed ones, the present invention focuses on moving the butt of the front sorting knitting needle when it is subjected to the action of the needle return member to a position slightly behind the tongue removal position.
an auxiliary retraction cam that is retracted by a small amount with An intermediate horizontal bat guide groove that joins the bats and guides those bats laterally at a position slightly behind the flattening position, and the butts of the double knitting needles that have passed through the intermediate horizontal bat guide groove are combined together. and a main retraction cam that retracts to the rear of the knockover position, thereby reliably preventing the stitch from being pulled out due to the return of the lateral movement of the front portion of the front sorting knitting needle, thereby achieving the stitch wrapping effect. In addition, the guide cam bottom of the butt of both knitting needles for the stitch passing action can be simplified.

An embodiment embodying the present invention will be described in detail below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a needle bed, on the front edge of which a large number of comb teeth 2 are arranged in rows at equal intervals, and knitting needles N are arranged between each of the comb teeth 2.

Each of the knitting needles N is inserted into longitudinal guide grooves 3 and 4 provided at the front and rear of the needle bed 1, respectively, and is movable back and forth as well as up and down. It is possible to bend in the direction.

Reference numeral 5 denotes a push-up spring that always pushes up each of the knitting needles N individually to an upper position.

Reference numeral 6 designates a sponge rubber material which provides each knitting needle N with appropriate resistance against sliding back and forth.

In the figure, reference numeral 7 denotes a lace knitting carriage mounted on the upper surface of the needle bed 1 so as to be able to slide from side to side, and on its lower surface are the butts of the knitting needles at the knitting preparation position X (hereinafter referred to as rear selection knitting needles NX) and the front selection Cams that operate to guide the butt of the knitting needle (hereinafter referred to as front selection knitting needle NY) at position Y (suspended above the proximal end of the latch with the stitch open) are arranged symmetrically around the center. ing.

That is, in the figure, 8 is a rear body needle passage forming cam, 9 is a front body needle passage forming cam, 10 is a pair of left and right outer cams, 11 is the same pair of intermediate cams, 12 is the same pair of outer cams, and 13 is the same The pair of sorting cams 14 are the same pair of switching cams.

Each of the cams except for the pair of switching cams 14 is integrally formed of a synthetic resin material or the like and is fixed to the lower surface of the lace knitting carriage 7.

At the left and right center portions of the forerunner needle passage forming cam 9, the butt of the forward sorting knitting needle NY is positioned from the approximate knock-out position (the position where the stitch K escapes backward from the rear end of the opened latch) to the knockover position (the stitch K). 1 in front of the position where the K comes off the hook forward)
A chevron-shaped front main retraction cam 9A is formed to be retracted.

Furthermore, each of the outer cams 10 is formed with an advancing cam surface 10A that advances the butt of the front selection knitting needle NY at approximately the flat-out position 1.

Further, each of the intermediate cams 11 is configured to move the backward sorting knitting needle NX forward at a position slightly backward 1 from the flattening position for the stitch K suspended on the front sorting knitting needle NY, as will be made clear from the following explanation. forward cam 1 that pushes the hook into
1A is formed.

Furthermore, each inner cam 12 is provided with a rear selection knitting needle NX.
an outer retraction cam surface 12A that retracts the butt of the front selection knitting needle NY at the knitting preparation position is formed.

Furthermore, each switching cam 14 has a guide pin 15 with an operating knob fixed thereto, and a carriage 7 for lace knitting.
A guide hole 16 formed in the guide hole 16 and a holding spring 17 that comes into elastic contact with the guide pin 15 allow the guide pin 15 to move within a certain range in the diagonal front and rear directions and to be held at the front and back ends of the movement.

Each of the switching cams 14 has a front end portion of the forward cam 11A and a rear end portion of the auxiliary backward cam 14C, which will be described later. The middle lateral bat guide groove 14A, which guides the bat in the lateral direction at a position slightly behind the position where the bat is pulled out, and the respective guide passages for the two knitting needles NX and NY at the forward movement position. An opening/closing piece 14B that closes the communication portion 18 and closes the guide passage of the butt of the rear sorting knitting needle NX instead of opening the communicating portion 18 at the backward movement position, and an opening/closing piece 14B that closes the butt of the rear sorting knitting needle NX at the forward movement position. Part 11: When the butt of the front sorting knitting needle NY is removed from the communicating portion 18 by using the guide cam surface 14D that guides it to the same passage and the rearward movement position, the butt of the front sorting knitting needle NY is moved back with a slight backward knurl from the position and placed in the intermediate transverse butt guide groove 14A. Auxiliary retraction cam 1 to guide
4C is formed.

Among the cams, a needle selection cam mechanism for newly selecting both the knitting needles NX and NY and leading them to the knitting preparation position X and the front selection position Y is provided symmetrically.

That is, 19 in the figure is a lowering cam, and both knitting needles NX, N aligned between the intermediate cam 11 and the rear body needle passage forming cam 8
Y is sequentially pushed down to a lower position to temporarily hold each knitting needle in a position where it can engage with hook-shaped needle selection pieces 20A of a plurality of needle selection plates 20 (only one is shown) in the needle bed.

Reference numeral 21 denotes a sorting cam that is arranged at an angle on the outside of each of the lowering cams 19, and after being lowered, the butt of each knitting needle, which is locked to the hook-shaped needle selection piece 20A, passes through it. The butt of each knitting needle, which has returned to the upper position without being locked by the needle piece 20A, is moved back.

In addition, 22 in the figure is a one-way guide cam, and the above-mentioned knitting preparation position
The butt of the rear-selecting knitting needles NX introduced from the rear-selecting knitting needle NX is advanced, and the butt of the rear-selecting knitting needle NX that has been rearwardly sorted by the sorting cam 20 passes through the butt 11 of the rear-selecting knitting needle NX.

The front portion of the lace knitting carriage 7 is bent into a substantially U-shaped cross section, and the two knitting needles NX, N are attached to the U-shaped portion.
A member is provided for raising the front portion of the Y and for bending it laterally.

That is, numeral 23 in the figure is a needle raising cam in the form of an upright wall plate, which raises the front part of the front sorting knitting needle NX above the upper end of the comb teeth 2.

Reference numeral 24 denotes a needle bar curved piece that cooperates with the needle raising cam 23 to intercept the needle actuating member, and moves the front part of the front selection knitting needle NY raised by the needle raising cam 23 above the adjacent rear selection knitting needle NX. Bend at point 1 where it intersects.

The front portion of the front sorting knitting needle NY, which has been affected by the needle bar bending piece 24, comes off the inner side of the needle raising cam 23 at a certain bending position and descends, and also comes off from the needle bar bending piece 24. The needles are connected to the side surfaces of the hooks of the adjacent backward sorting knitting needles NX in a crossed manner.

In the figure, reference numeral 25 denotes an auxiliary needle-raising cam in the form of an upright wall plate, which is provided slightly behind and inside the needle-raising cam 23, and is used to move the front part of the rear sorting knitting needles NX slightly below the upper end of the comb teeth 2.
The cross-joint with the front selection knitting needle NY is made easy and reliable.

In the figure, reference numeral 26 denotes a needle return member in the form of an upright wall plate provided inside the needle raising cam 23, which returns the front part of the front selection knitting needle NY connected to the hook of the rear selection knitting needle NX to the comb teeth 2.
It is raised above the upper end and released from the hook of the rear sorting knitting needle NX, allowing it to return to its original position by lateral movement.

The apex of the needle return member 26 is arranged slightly inside the starting end of the auxiliary retreat cam 14C of the switching cam 14 disposed at the rear position, so that the front portion of the front selection knitting needle NY is returned to the needle return position. When the needle 1 is raised by the member 26 and returned to its original position, the front selection knitting needle NY is moved back by the auxiliary retreat cam 14C.

In the figure, reference numeral 27 denotes magnets fixed to the left and right sides of the lower front surface of the lace knitting carriage 7, which erects the latch R of the rear sorting knitting needles NX.

Reference numeral 28 denotes a flat plate-shaped extension fixed to the inside of each magnet 27, which connects to the hook of the rear selection knitting needle NX after the front selection knitting needle NY is advanced by the forward cam surface 10A of the outer cam 10. During this time, it engages with the bottom surface of the tip of the opened latch R, and prevents the stitches on the latch R from being removed.

This embodiment is configured as described above.

The effect of passing the stitch K suspended from the front selection knitting needle NY to the rear selection knitting needle NX will be explained below.

That is, the groups of knitting needles are sorted in advance by the sorting cam 21 of the lace knitting carriage 7 and the like into front sorting needles NY and rear sorting needles N.
Sort into X and Chi<.

Further, the switching cam 14 is placed at the rearward movement position and removed.

By sliding the lace knitting carriage 7, the butts of the two knitting needles NX and NY are guided to the path indicated by the dashed line shown in FIG. The front portion of the knitting needle NX is bent by the needle bar bending piece 24 at the point 11 raised by the needle raising cam 23, and joined to the hook of the rear sorting knitting needle NX which has already been raised onto the auxiliary needle raising cam 25 in a crossed state.

Next, in this cross-joined state, the backward selection knitting needle NX is advanced by the forward cam 11A of the intermediate cam 11, and its tip hook enters into the stitch in the state immediately before the flatness removal on the front selection knitting needle NY. As a result, stitch K is on both knitting needles NX, N
It spans Y.

Subsequently, the front part of the front selection knitting needle NY in which the stitches have been wrapped and cross-joined is returned to its original position by the upward action of the needle return member 26. Since the auxiliary retraction cam 14C starts to move backward, the hanging position of the stitch on the front selection knitting needle NY is shifted from the previous state to the tip hook side, and the earliest stitch is not pulled out. It is made impossible to do so (see Figure 4).

The butts of the backward knitting needles NX and NY merge and are guided through the intermediate lateral batt guide groove 14A at a position slightly behind the flattening position, and then behind the front survival cam 9A and the inner cam 12 on the opposite side. It is retreated to the knitting preparation position X by the main retreat cam 12B, and the stitch is made into a groove which is hung between the hooks of both knitting needles NX and NY.

As described above, the stitch wrapping action is completed, but both knitting needles NX and NY that have completed this action are guided to the knitting preparation position X without being sorted, for example, when the next process is plain knitting, and When it performs the so-called stitch crossing action once every three days,
Sorted back and forth again to formation preparation position X and forward sorting position Y
The switching cam 14 is placed in the forward movement position and the button
As a result, as shown on the left side of FIG. A stitch transfer action is performed to completely transfer stitch K to rear selection knitting needle NX.

As detailed above, the present invention includes needle actuating members 23, 24.
The object is a lace knitting carriage having a forward cam 11A, and a needle return member 26. In particular, the needle return member 26 is used after the stitch K is passed over the forward and backward selection knitting needles NY and NX.
An auxiliary retraction cam 14 that retracts the butt of the front sorting knitting needle NY by a slight backward swivel of the flattening position when subjected to the action of
C, the front sorting knitting needles NY that have been retracted by the auxiliary retraction cam 14C, and the rear sorting knitting needles NX that have been advanced by the forward cam 11A are merged, and these butts are removed slightly behind the position. An intermediate lateral bat guide groove 14A that guides the bat in the lateral direction at a position, and the intermediate lateral bat guide groove 14
The main retraction cams 9A and 12B are provided for retracting the butts of both knitting needles NX and NY that have passed through A to the rear of the knockover position.

Therefore, when the front portion of the front selection knitting needle NY returns from the lateral movement position to the original position by the action of the needle return member 26, the front selection knitting needle NY is retreated to the rear of the flat removal position by the auxiliary retraction cam 14C. Therefore, even if vibration or the like occurs on the front selection knitting needle NY due to the return, the action of flattening on the stitches on the front selection knitting needle NY can be reliably prevented regardless of this. It is possible to prevent the fatal defect of a stitch transfer operation due to unevenness, and to always carry out the stitch wrapping operation precisely as specified.

Moreover, since the butts of both the knitting needles NX and NY are guided together along a common locus by the intermediate transverse batt guide groove 14A and the main retraction cams 9A and 12B, the guide cam structure is extremely simple. can do.

[Brief explanation of the drawing]

Figure 1 is a bottom view of the carriage for lace knitting, Figure 2 is a side view of the front part of the carriage for lace knitting, and Figure 3 is a side view of the front part of the carriage for lace knitting.
Figure 4 is a side sectional view of the main parts of the knitting machine, Figure 5 is an enlarged sectional view taken along line ■-V in Figure 1, Figure 6
The figure is a cross-sectional view taken along the line ■--■ in FIG. FIG. 7 (4-4) is an explanatory diagram of the drawbacks of the conventional device. 7... Carriage for race edition, IIA... Forward cam,
14C... Auxiliary retraction cam, 23... Needle raising cam, 2
4... Needle bending piece, 26... Needle return member, 9A...
Front main retraction cam, 12B... Rear main retraction cam, 14A
...Intermediate lateral bat guide groove.

Claims (1)

[Scope of Claim for Utility Model Registration] A specific rear selection knitting needle NX in which the front part of the front selection knitting needle NY, whose stitches K are suspended on an open collar R, is guided behind the front selection knitting needle NY. a needle actuating member 23, 24 that laterally moves upward in an intersecting state; and the two set needles N
While X and NY are arranged in a crossed state, a forward cam 1 advances the butt of the backward sorting knitting needle NX at a position slightly backward from the flattening position 1 and plunges its hook into the stitch.
1A, and a needle return member 26 that returns the front portion of the front selection knitting needle NY from the horizontally moved position to the original position after the hook of the rear selection knitting needle NX enters into the stitch.
In a lace knitting carriage equipped with
When removing the butt of Y, there is an auxiliary retracting cam 14C that retracts the bat a little behind the position 1, and a rear end of the auxiliary retracting cam 14C and a front end of the forward cam 11A facing the front end of the forward cam 11A and retracting with the auxiliary retracting cam 14C. Intermediate lateral movement in which the butts of the front sorting knitting needles NY and the rear sorting knitting needles NX advanced by the forward cam 11A are merged, and these butts are guided in the lateral direction at a position slightly behind the flattening position. It is characterized by comprising a bat guide groove 14A and main retracting cams 9A and 12B that retract the bats of both set needles NX and NY that have passed through the intermediate lateral bat guide groove 14A to the rear of the knockover position. Carriage for lace knitting on knitting machines.