JPS60146055A - Knitting machine stitch adjustment device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a stitch adjustment device for a knitting machine, and more particularly, to a stitch adjustment device for a knitting machine, in particular, it adjusts one knitting needle among rows of knitting needles each time a carriage installed on a needle bed is advanced. A stitch adjusting hook of a knitting machine in which the knitting needle is once advanced to the knockover position and all of the knitting yarn is supplied from the yarn feeder to the hook, and then the single knitting needle is retreated to the rear of the knockover position to knit the stitch. ) device.

BACKGROUND ART Conventionally, in this type of knitting machine, as shown in Japanese Patent Application Laid-Open No. 58-8167, one
The main knitting needle is once retreated to the maximum retracted position of the knockover position, and then the one knitting needle is returned to the front from the maximum retracted position according to the predetermined stitch size to adjust the stitch size. A method has been proposed that allows the decision to be made. By the way, according to this, when knitting particularly small stitches, due to friction of the knitting yarn, etc., the stitches may not return to the predetermined size of the small stitches but remain large, resulting in unbalanced stitches. This shortcoming is pointed out.

OBJECT OF THE INVENTION The object of the present invention is to provide a stitch adjustment device for a knitting machine that can reliably knit stitches of a predetermined size without causing loosening of the knitted stitches even when knitting particularly small stitches. It is about providing.

Structure of the Invention In order to achieve all of the above-mentioned objects, the present invention provides a method for moving one knitting needle supplied with knitting yarn from the yarn feeder into a carriage between a minimum retraction position and a maximum retraction position of the knockover position. a needle retracting member that is retracted to one intermediate retracted position determined by , and one knitting needle that has been retracted to the intermediate retracted position is moved forward or backward between the minimum retracted position and the maximum retracted position h. The knitting apparatus is equipped with a needle positioning member and an adjustment part that can arbitrarily change the stopping position of one knitting needle moved by the needle positioning member depending on the size of the knitted stitch.

EXAMPLE An example of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, a large number of knitting needles 2 and comb teeth 3 are arranged alternately on a needle bed 1 of this knitting machine. Further, a rack 4 having a large number of teeth having the same pitch as the arrangement pitch of the knitting needles 2 is provided on the upper surface of the cylindrical portion of the needle bed 1.

As shown in FIG. 1, a carriage 5 is mounted on the needle bed 1 so as to be movable in the left and right directions. A plurality of cam wheels 6 are provided at the center of the upper part of the carriage 5 so as to be rotatable together, and the upper and lower surfaces of the cam wheels 6 are provided with a carriage feed cam γ and a needle as illustrated in FIGS. 1 and 6. A large number of control cams are formed, such as an operating cam 8 for a positioning member, a main needle operating cam 9a, and an auxiliary needle operating cam 9b. As shown in FIG. 3, a motor 10 is mounted on the carriage 5, and the cam wheel 6 is moved clockwise in FIGS. It is designed to rotate.

As shown in FIG. 1, a carriage feeding device 11 is provided at the rear of the carriage 5 and has teeth that can be engaged with and detached from the hook 4 on the needle bed 1. Then, while the cam ○ is rotated once, the teeth of the carriage feeder 17 are rotated by the cam ring 6.
It is held and released from the carriage 4 by the cam action of the control cam (not shown) above, and is urged to move laterally via the operating lever 18 by the cam action of the carriage feed cam 7 on the cam ring 6. , so that when a moving force is applied to the tooth body while the tooth body is engaged with the rack 4, the carriage 5 is moved one pitch of the fine needles 2 to the right or left. It has become.

As shown in FIG. 2, on the lower surface of the carriage 5, there is a working butt passage 19 for guiding the butt 21) of the knitting needle 2 in the working position on the needle bed 1, and a working butt passage 19 for guiding the butt 21) of the knitting needle 2 in the rest position.
A resting butt passage 20 for guiding the batt 2b is formed. In front of the operating bat passage 19, an adjustment plate 21 is disposed at the center of the lower surface of the carriage 5 so that its position can be adjusted in the front and back direction, and a bat guide groove that opens rearward toward the operating bat passage 19 is provided in the center of the adjustment plate 21. 22 is formed, and a projecting piece 23 is extended to the left front side.

A needle retracting portion 24 is supported on the adjustment plate 21 so as to be movable in the front-back direction, and at the rear end there is a needle retracting portion 24 supported on the needle bed 1 guided beyond the butt guide groove 22 along the working butt passage 19.
A butt clamping part 24a is formed to clamp the notch 1-2b't of the book knitting needle 2 from the front and back, and an engaging pin 24b is provided protruding from the lower front end. An actuating plate 25 having a rectangular 'I' shape is connected to the right side of the adjusting plate 21, and a pin 25a is protruded from the upper surface of the actuating plate 25.

As shown in FIG. 4, a needle actuating lever 26 of the present machine is supported on the carriage 5 via a support shaft 27 so as to be able to move up and down and rotate.One cam ring 6 is mounted on the lower surface of the approximately central portion of the lever 26. A cam follower 26a that can be engaged with the machine needle actuating cam 9a formed on the upper surface of the cam follower 26a is provided in a protruding manner. Further, a connecting link 28 is provided between the tip of the actuating bar 26 and the pin 25a of the actuating plate 25.

When this machine needle actuating lever 26 is directed to the downward position, the cam follower 26B engages with the machine needle actuating cam 9a, and is activated by the cam action of the actuating cam 9a as the cam wheel 6 rotates. The lever 26 is rotated, and the needle retraction portion 24 is moved back and forth via the connecting link 28 and the actuating plate 25, and one knitting needle 2 on the needle bed 1 is once advanced to the flattening position, and then the knocking It is now possible to retreat to the rear of the over position. Furthermore, in this embodiment, as is clear from FIG.
When the knitting needle 2 is retracted, the knitting needle 2 is moved to the minimum retraction position P1 and the maximum retraction position P1 of the knockover position.
3, so as to retreat to one intermediate retraction position P2 set close to the minimum retraction position P1,
The shape of the machine needle operating cam 9a is set.

As shown in Fig. 1.2.4, an auxiliary needle support 29 is supported at the front and back movement portions of the carriage 5, and the auxiliary needle support 29
9, one sub-knit layer 30 is rotatably supported with its hook 30a facing rearward. As shown in FIG. 4, a secondary needle operating lever 31 is mounted on a support shaft 32 on the carriage 5.
A cam follower 31B is supported on the upper surface of the central portion of the convex portion so as to be vertically movable and rotatable through the cam ring 6. It is installed protrudingly. Further, the tip of the operating lever 31 is connected to a link 33.
It is connected to the secondary needle support 29 via.

When the secondary needle operating lever 31 is placed in the upper position, the cam follower 31a engages with the secondary needle operating cam 91), and as the cam wheel 6 rotates, the cam action of the f'i moving cam 9b causes the cam follower 31a to engage with the secondary needle operating cam 91). The operating lever 31 is rotated, and the sub needle support 29 is moved back and forth via the link 33, so that the sub knitting needle 30 is moved back and forth while facing one knitting needle 2 on the needle bed 1 from the front. It has become. Further, in this embodiment, the sub-knitting needles 30 are rotated by the action of a predetermined control cam on the cam ring 6, and as the hooks 2a, 30a of both knitting needles 2, 30 are connected and moved, fine stitches are transferred, etc. is now being carried out.

As shown in Figure 1.2, on the carriage 5 there is
4 is supported by the support part 35 so that it can move in the left and right direction. As shown in FIG. 1, a thread operating lever 36 is rotatably supported on the carriage 5 by a support shaft 3T.
A cam follower 36a is provided at the front end of the cam follower 36a, which is connected to the support portion 35 of the road head 34, and at the right end thereof, engages with a predetermined control cam on the cam wheel 6. Then, as the cam wheel 6 rotates, the thread removal operation lever 36 is rotated by the cam action of the control cam, and the thread feeder 34 is moved to the flat needle removal position on the fine needle 2 on the needle bed 1 or on the carriage 5. sub knitting needle 3
The knitting yarn is moved horizontally above the hooks 2a and 30a of No. 0, thereby supplying knitting yarn to the hooks 2a and 30a.

On the other hand, as shown in FIGS. 2 and 5, on the adjustment plate 21 at the bottom of the carriage 5, a needle positioning member 3B is supported by a pair of pins 39 through elongated holes 3sa and 2 so as to be movable left and right. An engagement recess 38b that can be engaged with the engagement pin 24b on the sword retraction member 24 is formed on its right side.

As shown in FIG.
As shown in FIG. 5, the engagement recess 38b is moved between the right engagement position where it engages with the engagement pin 24b, and the left non-engagement position where the engagement recess 38b does not engage with the engagement pin 24b. Based on the movement of the needle positioning member 38 to the locking position, the needle retraction member 24 is moved forward or backward, and one knitting needle 2 that has been retracted to the intermediate retraction position P2 is moved to the minimum retraction position P1.
It is adapted to be moved forward or backward when the position is opened to the maximum retracted position P3.

As shown in FIG. 2, at the front end of the carriage 5, an adjustment member 40 for setting and changing the size of knitting stitches is attached to a support shaft 41.
A substantially spiral cam groove 40a that engages with a pin 42 provided on the projection piece 23 of the adjustment plate 21 is formed on the lower surface thereof. As the adjusting member 40 is rotated, the cam action of the cam groove 40a moves the 'A joint plate 21 in the front-rear direction, changing the front-rear position of the needle positioning member 38, and changing the position of the needle 0L.
The stopping position of one knitting needle 2, which is regulated by the positioning member 38, is set at will according to the size of the stitches to be knitted.

As shown in Fig. 2.4.5, on the carriage 5, an operating lever 43 for a needle positioning member is rotatably supported by a support shaft 44, and at one end thereof, a pin 45 is used to insert the needle through a long hole 38C. A cam follower 43a is connected to the positioning member 38 and engages with the needle positioning member operating cam 8 on the cam holder 6 at the other end. As the cam wheel 6 rotates, the actuating lever 43 is rotated by the cam action of the actuating cam 8, and the needle positioning portion 38 is moved between the right engaging position shown in FIG. 2 and the left engaging position shown in FIG. It is adapted to be moved between the disengaged position and the disengaged position.

The operation of the knitting machine configured as described above will now be described. Now, in this knitting machine, when knitting the front opening for rubber knitting, for example, the cam ring 6 shown in FIG.
FIG. 7 (1) corresponds to the rotation angle positions (1) to (14) of
The operations shown in a)(1b) to FIG. 7(14B)(14b) are performed, and one stitch of stitches is knitted per rotation of the cam wheel 6.

That is, one knitting needle 2 on the needle bed 1 is moved forward from the state shown in FIGS.
As shown in Figures (2a) and (2b), the bellows are advanced to the position. Note that, prior to this movement of the knitting needles 2, the needle 61 positioning member 38 is moved from the engaged position shown in FIG. 2 to the non-engaged position shown in FIG. 5 by the action of the operating cam 8 shown in FIG. The retaining portion 38b has been removed from the engagement pin 241) of the needle retraction member 24. Next, Figure 7 (3B) (3
As shown in 1)), the sub knitting needles 30 on the carriage 5 are rotated h, and then as shown in the cylinder 7 [14 (4a) (4b), both knitting needles 2 and 30 are connected to the main machine needle operating cam 9a and the sub needles. Operating cam 9
By the action of b, both hooks 2a+3 are moved backward.
The joining of 0a and the transfer of stitches from knitting needle 2 to sub-knitting needle 30 are performed. Furthermore, as shown in FIGS. 7(5a) and 7(5b), the sub-knitting needles 30 advance to the DI position where both hooks 2
The bond between a and 30B is released, and then Fig. 7 (6a) (
As shown in 6b), the secondary mari needle 30 is rotated back.

In this state, as shown in FIGS. 7(7a') and 7b, the yarn feeder 34 is moved across the upper part of the hook 3011 of the sub-knitting needle 30 from the left side to the right side, and the hook 30aK knitting yarn is supplied. Then, as shown in FIGS. 7(8a) and 8b, the sub knitting needles 30 are moved back (forward) beyond the knockover position to knit the front opening, and then the front opening is knitted.
As shown in 9b), the sub-knitting needles 30 are slightly rotated and raised, and the knitted stitches are lifted and tightly adhered to the hooks of the sub-knitting needles 30, thereby preventing them from floating or slipping out. Furthermore, as shown in FIGS. 7(10a) and (10b), Ki! After the IMa needle 3D is rotated back to its original position, Fig. 7 (1)
As shown in 1a) and 11b, the sub-knitting needles 30 are advanced to the flat removal position, and in this state, the sub-knitting needles 30 are advanced to the flat removal position, and in this state, the sub-knitting needles 30 are
12b), the sub-knitting needle 30 is rotated again, and the hooks 2a, 3 (la) of both knitting needles 2, 30 are connected.Then, as shown in FIGS. 7(13a) and 7(13b), both knitting needles The stitches are transferred from the sub-knitting needle 30 to the knitting needle 2 by the forward movement of the hooks 2 and 30, and then the sub-knitting needle 30 is rotated back to release the connection between the hooks 2B and 30a.

From this state, the knitting needle 2 moves backward to the intermediate retraction position P2 between the minimum retraction position P1 and the maximum retraction position P3 shown in FIG. Figure 7 (14b)
It is placed at the position shown by the chain line. At this time, the needle positioning member 3B is moved rightward from the non-engaging position shown in FIG. 5 toward the locking position shown in FIG. 2 by the action of the operating cam 80 shown in FIG. The needle diameter retraction member 24 is moved forward or backward by engagement with the dowel pin 24b. Therefore, the knitting needles 2 are adjusted in accordance with the arrangement position of the needle diameter retraction member 24, which is adjusted in advance by the adjustment member 40.
As shown in Figures (14a) and (14b), the needle is further drawn in from the intermediate drawing position and then stopped, forming a stitch of a predetermined size according to the amount of drawing.

In this state, the carriage 5 is moved stepwise to the right by the action of the carriage feed cam 1, etc., and the yarn feeder 34 is moved to the secondary wheel needle by the action of a predetermined control cam on the cam wheel 6. 30 was moved back to the left from the right side of Figure 7C.
The state becomes IB)<Ib).

In addition, when knitting the back stitch for rubber knitting, as shown by broken lines in FIG. It is separated from the operating cams 9a and 9b, and as a result,
Only one knitting needle 2 on the needle bed 1 is moved back and forth without the secondary loop needle 30 being moved back and forth, and with the knitting needle 2 being advanced to the flat extraction position, as the yarn feeder 34 moves. The Cook 2aK knitting yarn is supplied, and then the knitting needles 2 are retreated to the rear of the knockover position to knit the long stitches.

Also during this back stitch knitting, the needle positioning member 38 restricts the stretching position of the knitting needles 2 when they retreat, and a stitch of a predetermined size is formed.

It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiments, and the configuration of each part can be arbitrarily changed and embodied without departing from the spirit of the invention.

Effects of the Invention As detailed above, this invention has the advantage that even when knitting particularly small stitches, it is possible to reliably knit stitches of a predetermined size without causing loosening of the knitted stitches. be effective.

[Brief explanation of drawings]

Figure 1 is a plan view showing a part of the needle bed and carriage of a knitting machine embodying this invention, Figure 2 is a bottom view of the carriage, and Figure 3 is a bottom view of the carriage.
The figure is a partial plan view of the carriage showing the drive transmission configuration from the motor to the cam wheel, FIG. 4 is a partial plan view of the carriage showing the configuration of the operating lever operated by the operating cam on the cam wheel, and Figure 2 is a partial bottom view of the carriage showing the operating state, Figure 6 is a cam diagram of the main cams on the cam wheel, and Figures 7 (1a) and (14a) are the knitting operations of the front row based on one rotation of the cam wheel. Partial plan views of the knitting machine sequentially shown in Fig. 7 (l
b) to (141)) are also partial side views of the knitting machine. Needle bed 1, loop needle 2, hook 2a, carriage 5, needle diameter retraction member 24, secondary loop needle 30, yarn feeder 34, needle position, loss member 38
, Adjustment member 400 Patent applicant Brother Industries, Ltd. Agent Patent attorney On 1) Hironobu Figure 7 (2a) (3a) (42) Figure 7 (6a) Figure 7

Claims (1)

[Claims] 1. Each time the carriage (5) installed on the needle bed (1) is advanced, one knitting needle (2) among the rows of knitting needles is moved once to the flattening position. and attach the yarn feeder (3) to the hook (2a).
In a knitting machine that knits a stitch by retracting one knitting needle (2) to the rear of a knockover position after supplying knitting yarn from (4), the carriage (5) is provided with the yarn feeder (5). One knitting needle (2) supplied with pongee yarn from 34) is transferred to the knockover 4
A needle retracting member (24) that retracts the knitting needle (24) to one intermediate retracting position where the minimum retracting position of Xl and the maximum retracting position of 4MM are determined, and one knitting needle (2) that has been retracted to the intermediate retracting position. A needle positioning member (38) that moves forward or backward between the minimum retracted position and the maximum retracted position, and the stop position of one knitting needle (2) moved by the needle positioning member (3B) are determined for knitting stitches. A stitch adjustment device for a knitting machine, characterized in that it is provided with an adjustment section U' (40) that can be arbitrarily changed depending on the size of the stitch. 2. The needle positioning member (38) is connected to the needle retraction member (
24) and a disengaged position where the needle positioning member (3B) is moved to the engagement position.
24) forward or backward to remove the one knitting needle (24).
2. A stitch adjustment device for a knitting machine according to claim 1, characterized in that the device determines the stop position of the knitting machine. 8. The stitch adjustment device for a knitting machine according to claim 1 or 2, wherein the intermediate retraction position is set to a position close to the minimum retraction position.