JPH0341581B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a knitting machine using a single-pull knitting method, in which a carriage is moved step by step on a needle bed while knitting a stitch for each knitting needle. It concerns an adjustment device.

[Prior art] Conventionally, in this type of knitting machine, for example,
As shown in Japanese Patent Laid-Open No. 57-210048 and Japanese Patent Application Laid-open No. 58-8167, regardless of the size of the stitch to be knitted, one knitting needle is once retracted to the maximum pull-in position of the knock-over position, and then It has been proposed that the one knitting needle is returned to the front from the maximum retracted position depending on the size of the stitch to determine the size of the stitch.

[Problems to be Solved by the Invention] However, according to the previously proposed method, when knitting particularly small stitches, when returning one knitting needle that has been retreated to the maximum retraction position of the knockover position to the front, , due to mutual friction of the knitting yarns between the new stitch just knitted and the old stitch one row below that has been knocked over, that one knitting needle does not return completely to the predetermined front position, and therefore The knitted stitches sometimes do not return to small stitches of a predetermined size and remain large stitches, resulting in the disadvantage that the stitches become irregular.

Therefore, the present invention provides a knitting machine that can reliably knit stitches of a predetermined size that has been adjusted in advance, without the knitted stitches remaining largely loose even when knitting particularly small stitches. The object of the present invention is to provide a stitch adjustment device.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention particularly provides a carriage, regardless of the size of the stitches knitted by one knitting needle fed with knitting yarn from a yarn feeder. a needle retraction member that retracts the one knitting needle to a predetermined intermediate retraction position between a minimum retraction position and a maximum retraction position of the knockover position; and a needle retraction member that retracts the one knitting needle to the intermediate retraction position. The device is movable between engagement and non-engagement positions, and by moving to the engagement position, the needle retraction member is moved forward from the intermediate retraction position between the minimum retraction position, the maximum retraction position, and the rear. Alternatively, a needle positioning member is moved backward to determine its stop position, and the position of the needle positioning member is adjusted in the moving direction of the needle retraction member to adjust the stop position of the needle retraction member according to the size of the knitted stitches. It is characterized by comprising an adjustment member that can be changed arbitrarily.

[Function] According to the above means, when knitting stitches of any size, one knitting needle that receives knitting yarn from the yarn feeder is moved to the determined knockover position by the needle retracting member. After knitting a stitch by retracting the stitches to one intermediate retraction position, the needle positioning member whose position has been adjusted in advance by the adjusting member is moved from a non-engaged position to an engaged position with respect to the needle retracting member. , the needle retraction member is advanced or retracted from the intermediate retracted position and stopped at a predetermined position, thereby:
The size of the knitted stitches is finally determined to be the planned size.

[Embodiment] An embodiment 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 in alternate rows on a needle bed 1 of this knitting machine. It is located. Further, on the rear upper surface of the needle bed 1, a rack 4 having a large number of teeth of the same pitch as that of the knitting needles 2 is provided.

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. At the center of the upper part of the carriage 5, a plurality of cam wheels 6 are provided so as to be integrally rotatable, and on the upper and lower surfaces of the cam wheels 6, a carriage feed cam 7 and a needle as illustrated in FIGS. 1 and 6 are provided. actuation cam 8 for positioning member;
A large number of control cams are formed, such as a main needle operating cam 9a and an auxiliary needle operating cam 9b. As shown in FIG. 8, a motor 10 is mounted on the carriage 5, and the cam wheel 6 is moved clockwise in FIGS. 1 and 3 via a plurality of gears 11, 12, 13, 14, 15, and It is designed to rotate.

As shown in FIG. 1, a carriage feeding device 17 is provided at the rear of the carriage 5 and has teeth that can be engaged with and detached from the rack 4 on the needle bed 1. and,
While the cam ring 6 is rotated once, the teeth of the carriage feed device 17 are engaged with and disengaged from the rack 4 by the cam action of a control cam (not shown) on the cam ring 6, and When the carriage feed cam 7 is forced to move laterally via the actuating lever 18 by the cam action of the carriage feed cam 7, and a moving force is applied to the tooth body while the tooth body is engaged with the rack 4, the carriage 5 moves to the right. The knitting needles 2 are moved forward or leftward by one pitch.

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

A needle retracting member 24 is supported on the adjustment plate 21 so as to be movable in the front and back direction, and one needle on the needle bed 1 guided to the rear of the butt guide groove 22 along the working butt passage 19 is provided at the rear end. A butt holding part 24a is formed to hold the butt 2b of the 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 substantially horizontal T-shaped bottom 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 operating 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, and one cam wheel 6 is mounted on the lower surface of the approximately central portion of the lever 26. Machine needle actuating cam 9 formed on the top surface
A protruding cam follower 26a that can be engaged with a is provided. Furthermore, the tip of the actuating lever 26 and the actuating plate 2
A connecting link 28 is provided between the pin 25a of No.5.

When the machine needle operating lever 26 is placed in the lower position, the cam follower 26a engages with the machine needle operating cam 9a, and as the cam wheel 6 rotates, the cam action of the operating cam 9a causes the cam follower 26a to engage with the machine needle operating cam 9a. The actuating lever 26 is rotated, the needle retracting member 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 knitting needle 24 is moved back and forth. It is designed to be retreated to the rear of the position. Furthermore, in this embodiment, as is clear from FIG. 6, when the knitting needle 2 is retracted, the knitting needle 2
The needle actuating cam 9a of the machine is moved so as to be moved back to one intermediate retracting position P2 set close to the minimum retracting position P1 between the minimum retracting position P1 and the maximum retracting position P3 of the knockover position. The shape is set.

As shown in FIGS. 1, 2, and 4, a sub-needle support 29 is supported at the front part of the carriage 5 so as to be movable back and forth, and one sub-knitting needle 30 is mounted on the sub-needle support 29 with its hook 30a. It is rotatably supported with the camera facing backwards. As shown in FIG. 4, an auxiliary needle operating lever 31 is supported on the carriage 5 via a support shaft 32 so as to be movable up and down and rotatable, and on the upper surface of the approximately central portion thereof is the lower surface of one cam ring 6. A cam follower 31a is provided in a protruding manner and can be engaged with a secondary needle actuating cam 9b formed in the cam follower 31a. Further, the tip end of the operating lever 31 is connected to the secondary needle support 29 via a link 33.

When the secondary needle actuating lever 31 is placed in the upper position, the cam follower 31a engages with the secondary needle actuating cam 9b, and as the cam wheel 6 rotates, the actuating lever is activated by the cam action of the actuating cam 9b. 31 is rotated, the auxiliary needle support 29 is moved back and forth via the link 33, and the auxiliary knitting needle 30 is attached to one knitting needle 2 on the needle bed 1.
It is designed to be moved back and forth while facing from the front. Further, in this embodiment, the sub knitting needles 30
is 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, stitches are transferred, etc.

As shown in FIGS. 1 and 2, a yarn feeder 34 is supported on the carriage 5 via a support member 35 so as to be movable in the left-right direction. As shown in FIG. 1, a yarn feeder operating lever 36 is rotatably supported on the carriage 5 by a support shaft 37, and its front end is connected to a support member 35 of the yarn feeder 34, and a cam wheel 6 is attached to its right end. A cam follower 36a is provided which engages a predetermined control cam above. Then, as the cam wheel 6 rotates, the control cam action rotates the yarn head actuating lever 36, and the hook 2a of the knitting needle 2 on the needle bed 1 or the sub-knitting needle 30 on the carriage 5, with the yarn feeder 34 advanced to the flat pull-out position. , 30a in the left and right direction, thereby causing the hook 2
Knitting yarn is supplied to a and 30a.

On the other hand, as shown in FIGS. 2 and 5, a needle positioning member 38 is supported by a pair of pins 39 on the adjusting plate 21 at the bottom of the carriage 5 so as to be movable left and right through an elongated hole 38a. An engagement recess 38b is formed in which the engagement pin 24b on the needle retraction member 24 can engage. The needle positioning member 38 is positioned at the right engagement position where the engagement recess 38b engages the engagement pin 24b on the needle retraction member 24 as shown in FIG. 2, and at the right engagement position as shown in FIG. The engagement recess 38b is moved between a left non-engagement position where it does not engage the engagement pin 24b, and the needle is moved based on the movement of the needle positioning member 38 to the engagement position. The 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 forward or backward between the minimum retraction position P1 and the maximum retraction position P3. .

As shown in FIG. 2, at the front end of the carriage 5, an adjustment member 40 for changing the setting of the size of the stitches is rotatably supported by a support shaft 41.
The lower surface thereof has a substantially spiral cam groove 4 that engages with a pin 42 provided on the projecting piece 23 of the adjustment plate 21.
0a is formed. And this adjustment member 4
0, the adjusting plate 21 is adjusted to move in the front-back direction by the cam action of the cam groove 40a, and the front-back position of the needle positioning member 38 is changed, so that one needle regulated by the needle positioning member 38 is adjusted. knitting needle 2
The stopping position of the knitting stitches can be arbitrarily set depending on the size of the knitted stitches.

As shown in FIGS. 2, 4, and 5, an operating lever 43 for the needle positioning member is mounted on the support shaft 4 on the carriage 5.
The pin 4 is rotatably supported by the pin 4 at one end.
5, the needle positioning member 38 is inserted through the elongated hole 38c.
A cam follower 43a that engages with the needle positioning member operating cam 8 on the cam ring 6 is provided at the other end. And cam wheel 6
As the needle positioning member 38 rotates, the operating lever 43 is rotated by the cam action of the operating cam 8, and the needle positioning member 38 moves between the right engagement position shown in FIG. 2 and the left disengagement position shown in FIG. It is now being moved between

The operation of the knitting machine configured as described above will now be described. Now, when this knitting machine is used to knit the front stitch for rubber knitting, for example,
Rotational angle positions (1) to (14) of cam section 6 shown in Fig. 6
Corresponding to Fig. 7 1a, 1b to Fig. 7 14a, 1
The operation shown in 4b is performed, and one stitch of stitches is knitted by one rotation of the cam wheel 6.

That is, from the state of FIG. 7 1a, 1b, the needle bed 1
The upper one knitting needle 2 is advanced by the forward movement of the needle retraction member 24 based on the action of the machine's needle actuating cam 9a, and is advanced to the collar removal position as shown in FIGS. 7, 2a and 2b. Note that, prior to this movement of the knitting needles 2, the needle positioning member 38 is moved from the engagement position shown in FIG. 2 to the fifth position by the action of the operating cam 8 shown in FIG.
The engaging recess 3 is moved to the non-engaging position shown in the figure.
8b has separated from the engagement pin 24b of the needle retraction member 24. Next, the sub knitting needles 30 on the carriage 5 are rotated as shown in FIGS. 7 3a and 3b, and then both knitting needles 2 and 30 are connected to the main machine needle operating cam 9a and the sub knitting needles 30 as shown in FIGS. 7 4a and 4b. The needle is moved backward by the action of the needle actuating cam 9b, and the hooks 2a and 30a are joined together and the stitches are transferred from the knitting needle 2 to the sub-knitting needle 30. Furthermore, as shown in FIG. 7, 5a and 5b, the sub-knitting needle 30 advances to the flattening position and the connection between both hooks 2a and 30a is released, and then, as shown in FIG. 7, 6a and 6b, the sub-knitting needle 30 returns. Rotated.

In this state, as shown in FIGS. 7a and 7b, the yarn feeder 34 is moved across from the left to the right above the hook 30a of the sub-knitting needles 30, and the knitting yarn is supplied to the hook 30a. As shown in FIGS. 7, 8a and 8b, after the surface stitches in which the sub-knitting needles 30 are moved back (moved forward) past the knock-over position are knitted,
As shown in FIGS. 7, 9a and 9b, the sub-knitting needles 30 are slightly rotated and raised, and the knitted stitches are lifted and tightly attached to the hooks of the sub-knitting needles 30,
This prevents it from floating or slipping off. Furthermore, after the sub-knitting needles 30 are rotated back as shown in FIGS. 7, 10a and 10b, the sub-knitting needles 30 are advanced to the flattening position as shown in FIGS. 7, 11a and 11b, and in this state, the As shown in FIGS. 12a and 12b, the sub knitting needle 30 is rotated again, and both knitting needles 2, 30
hooks 2a and 30a are connected. Then, as shown in FIG. 7 13a and 13b, both knitting needles 2 and 30
By moving forward, the stitches are transferred from the sub-knitting needle 30 to the knitting needle 2, and then the sub-knitting needle 30 is rotated back to release the connection between the hooks 2a and 30a.

From this state, the knitting needles 2 are moved backward by the needle retraction member 24 based on the action of the machine needle actuating cam 9a.
It is retreated to an intermediate retraction position P2 between the minimum retraction position P1 and the maximum retraction position P3 shown in FIG. 6, and is placed at the position shown by the chain line in FIG. 714b. At this time, the needle positioning member 38 is moved rightward from the non-engaged position shown in FIG. 5 to the engaged position shown in FIG. 2 by the action of the operating cam 8 shown in FIG. The needle retraction member 24 is moved forward or backward by engagement with the engagement pin 24b. Therefore, the knitting needles 2 are further retracted from the intermediate retracted position, as shown in FIGS. 7 14a and 14b, for example, according to the arrangement position of the needle retraction member 24, which is adjusted and set in advance by the adjustment member 40. It is stopped, and a stitch of a predetermined size is formed according to the amount of pull-in.

In this state, the carriage 5 is moved stepwise to the right by the action of the carriage feed cam 7, and the yarn feeder 34 is moved to the right of the sub-knitting needles 30 by the action of a predetermined control cam on the cam ring 6. It is then moved back to the left, resulting in the states shown in FIGS. 1a and 1b.

In addition, when knitting the back stitch for rubber knitting, as shown by the broken line in FIG.
and the cam followers 26a, 3 of the secondary needle operating lever 31.
1a is the operating cam 9a, 9b during the rotation of the cam wheel 6.
As a result, only one knitting needle 2 on the needle bed 1 is moved back and forth without the auxiliary knitting needle 30 being moved back and forth, and the knitting needle 2 is moved back and forth to the yarn feeder with the knitting needle 2 advanced to the flat pull-out position. With the movement of 34, the hook 2
Knitting yarn is supplied to a, and then the knitting needles 2 are retreated to the back of the knockover position to knit the back stitch. Also during this back stitch knitting, the stopping position of the knitting needles 2 when retreating is regulated by the needle positioning member 38, as in the case of the front stitch knitting, 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 described in detail above, the present invention allows the minimum and maximum retraction positions of the knockover position to be adjusted by moving the needle retraction member backward under exactly the same conditions when knitting stitches of any size. One knitting needle is once retracted to a predetermined intermediate retracted position between the two positions, and then the needle positioning member, which has been adjusted in advance by the adjustment member, is moved from the non-engaged position with respect to the needle retraction member. By moving to the engagement position, the needle retraction member is moved forward or backward from the intermediate retracted position to determine the planned stop position of the knitting needles, and the stitch is finally determined to the planned size. As a result, even when knitting particularly small stitches, the knitted stitches do not remain loose as in the conventional method mentioned earlier, and the stitches of a predetermined size that have been adjusted in advance can be knitted. can be organized reliably. Furthermore, since the stop position of the needle retraction member can be arbitrarily changed by adjusting the position of the needle positioning member in the movement direction of the needle retraction member using the adjustment member, stitches of any size can be knitted using the single-pull knitting method. Even in such cases, it is possible to take appropriate measures to prevent deviations in the stitch size.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a part of the needle bed and carriage of a knitting machine embodying the present invention, Fig. 2 is a bottom view of the carriage, and Fig. 3 is a carriage showing the drive transmission structure from the motor to the cam wheel. FIG. 4 is a partial plan view of the carriage showing the structure of the operating lever operated by the operating cam on the cam ring, and FIG. 5 is a partial bottom view of the carriage showing the operating state shown in FIG. 2. ,
Fig. 6 is a cam diagram of the main cams on the cam wheel, Fig. 7 1a and 14a are partial plan views of the knitting machine sequentially showing the knitting operation of the front stitch based on one revolution of the cam wheel, Fig. 7 1b
14b is a partial side view of the knitting machine. In the figure, 1 is the needle bed, 2 is the knitting needle, 2a is the hook, and 5
is a carriage, 24 is a needle retraction member, 30 is a sub-knitting needle,
34 is a yarn feeder, 38 is a needle positioning member, and 40 is an adjustment member.

Claims (1)

[Scope of Claims] 1. Every time the carriage 5 installed on the needle bed 1 is fed forward, one knitting needle 2 among the rowed knitting needles is once advanced to the slip-out position and the hook 2a is connected to the yarn feeder. 3
In this knitting machine, the knitting yarn is supplied from the yarn feeder 34 to the carriage 5, and then the knitting needle 2 is moved back to the rear of the knockover position to knit the stitches. A needle retracting member 24 for retracting one knitting needle 2 received by the knitting needle 2 to a predetermined intermediate retracting position between the minimum retracting position and the maximum retracting position of the knockover position, regardless of the size of the stitches to be knitted.
The one knitting needle 2 is movably moved between the engagement and non-engagement positions with respect to the needle retraction member 24 that has been retracted to the intermediate retracted position, and when the one knitting needle 2 is moved to the engagement position, the needle a needle positioning member 38 for moving the retraction member 24 forward or backward from the intermediate retraction position between the minimum retraction position and the maximum retraction position and determining a stop position thereof;
and the needle positioning member 38 to the needle retraction member 2.
The needle retraction member 24 is adjusted in position in the moving direction of 4.
A stitch adjustment device for a knitting machine, comprising an adjustment member 40 that allows the stop position of the knitting machine to be arbitrarily changed depending on the size of the stitches to be knitted. 2. The stitch adjustment device for a knitting machine according to claim 1, wherein the intermediate retraction position is set to a position close to the minimum retraction position.