JPH0318544Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) The present invention is a sock knitting machine equipped with a double-ended cylinder that knits socks such as socks and pantyhose socks using a pair of upper and lower knitting machine cylinders. In particular, the present invention relates to a knitted fabric pull down/pause device that guides the knitted fabric downward without slack in a sock knitting machine equipped with this double-headed cylinder.

(Prior Art) A knitting fabric pull-down stop device for a sock knitting machine equipped with this type of double-ended cylinder, which has already been proposed, is constructed as shown in FIGS. 4 to 7.

That is, in FIGS. 4 to 7, a main body 1 of a sock knitting machine equipped with a double-headed cylinder is rotatably provided with an upper cylinder 2 and a lower cylinder 3, which form a pair of upper and lower cylinders. A barge member 4 is attached to the lower part.
In addition, a barge tube shaft 5 is provided at the axial center of the barge member 4.
passes through the upper cylinder 2 and protrudes upward, and an elevating rod 6 slides in the axial direction on this barge tube shaft 5. It is mounted on a shaft so that it rotates. Furthermore, as shown in FIGS. 4 and 5, a pull-down piece 7 is horizontally attached to the lower part of the lifting rod 6, and this pull-down piece 7 is attached as shown in FIG. It is inserted into the bag knitting parts such as the heel part _W1 and the toe part _W2 of the standard socks main body W, and when knitting the straight part, the whole sock book W is pulled down without sagging.

In addition, in FIG. 7, the symbol W ₃ is the mouth rubber part,
The bag knitting of the heel part _W1 , toe part _W2, etc. is performed by reciprocating the upper cylinder 2 and lower cylinder 3, and is knitted by knitting needles etc. provided on the outer periphery of both cylinders 2 and 3. It's becoming like that.

On the other hand, a control drum 8 is rotatably mounted on the main body 1 below the lower cylinder 3.
The knitting machine rotates or stops based on a knitting program signal from a knitting machine control panel (not shown). Further, on the outer periphery of this control drum 8, a first rest cam 9a for the heel portion _W1 and a toe portion are provided.
A second rest cam 9b for W ₂ is arranged in series on the same circumference, and an operating ram 11 is attached to a pin at the lower part of the support 10 that is integral with the main body 1 directly above both the rest cams 9a and 9b. It is rotatably mounted on a shaft 12. Furthermore, a push-up rod 13 is provided at one end 11a of the operating lever 11 to each of the above-mentioned rest cams 9a, 9.
A roller 13a is attached to the lower part of the push-up rod 13 so as to roll on each of the stop cams 9a and 9b.

On the other hand, on the upper part of the pillar 10, there is a lifting lever 14.
is rotatably mounted on a pin shaft 15, and one end 14a of this elevating lever 14 is connected to a spring rod 16.
It is connected to the other end portion 11b of the operating lever 11 via. Further, the other end portion 14 of the elevating lever 14
b forms a fork portion 14d having a pin 14c, and this pin 14c engages with an engagement circumferential groove 6a formed in the upper part of the lifting rod 6; , a weight 17 is screwed onto it. Further, a pair of stops 18a and 18b are attached to the top of the support column 10, and each stop 18a and 18b regulates the rotation range of the lifting lever 14.

Therefore, when knitting a standard socks knitted fabric, that is, when knitting the socks knitted fabric shown in FIG. Based on the instructions, the socks main body W is knitted using the upper cylinder 2 and lower cylinder 3 and the knitting needles attached thereto, and the opening rubber part W ₃ , heel part W ₁ , and toe part W ₂ are knitted. While knitting, the knitted socks book W is pulled down without slack by a pair of pull-down rollers 19 provided below the lower cylinder 3.

That is, when knitting the socks main body W, the pull-down piece 7 attached to the lower part of the lifting rod 6 is moved to the knitted parts such as the heel part _W1 and the toe part _W2 , as shown by the chain line in FIG. In this case, while the bag knitted fabric portion is being knitted, the pull-down action is not performed (inactive state), and after the knitting of the bag knitted portions such as the heel portion W ₁ and toe portion W ₂ is completed, knitting of the straight portion begins. At this time, the pull-down piece 7 is engaged with the heel W ₁ and the tip of the toe W ₂ in order to tighten the slack bag knitting of the heel W ₁ , toe W _{2 ,} etc. At the same time, the lowering action starts (see Fig. 5).

Therefore, when knitting the bag-knitted parts of the heel part _W1 and the toe part _W2 , the push-up piece 7 is placed in the recess of the barge part 4 as shown by the chain line in FIG. 4 so as not to get in the way. It is stored.

That is, when the bag knitting section of the socks main body W is reached, the control drum 8 starts rotating based on the command of the knitting program from the socks knitting fabric control panel. When the pause cam 9a or the second pause cam 9b contacts the roller 13a of the push-up rod 13, the push-up rod 13, which is integrated with the roller 13a, is pushed upward. Then, the operating lever 11 connected to the upper part of the push-up rod 13 is rotated to the right around the pin shaft 12, so that the operating lever 11 rotates the lifting lever 14 around the pin shaft 15 via the spring rod 16. Since it rotates to the right, the other end 1 of this elevating lever 14
The pin 14c of 4b raises the lifting rod 6 against the weight 17 to the position shown by the chain line and stops. Then, the pull-down piece 7 attached to the lower part of this lifting rod 6
is housed in the recess 4a of the barge member 4.

In this way, the pull-down piece ₇ of the sock knitting machine equipped with the above-mentioned double-headed cylinder can be
When knitting the bag knitted fabric portion of the socks body _W , the pull-down piece 7 is stored in the recess 4a of the barge member 4 and does not get in the way of the stockinette knitted fabric. I try not to become

That is, when knitting the straight section of the socks body W, the pull-down piece 7 guides and pulls down the knitted socks fabric without slack, and when knitting the bag-knitted fabric section of the sock body W, the pull-down piece 7 is attached to the verge. It is accommodated in the recess 4a of the member 4, and the knitted fabric pulling down operation is suspended.

(Problem to be solved by the invention) However, as shown in FIG. Since the bag knitted fabric parts such as the part _W1 and the toe part _W2 are knitted with a constant pitch interval, this does not cause any problem, but the gusset may be different from the standard knitted socks fabric as shown in Fig. 2. The sock body W of the type in which the knitted fabric W ₄ is continuously knitted is such that when the pull-down piece 7 moves up and down as it is based on the knitting program, when knitting the gusset knitted fabric W ₄ , the pull-down piece 7 However, not only is there a risk of damaging the knitted fabric, but there is also a risk of impairing the quality of the product.

The present invention was developed in view of the above-mentioned circumstances, and when knitting a gusset knitted fabric that is continuous to a standard socks knitted fabric, the pull-down piece is temporarily stored in the recess of the barge member, and the pull-down piece is To provide a sock knitting machine equipped with a double-headed cylinder that prevents damage to knitted fabric knitted by pieces and improves quality.

[Structure of the idea]

(Means for Solving the Problems and Their Effects) The present invention provides an upper cylinder and a lower cylinder in the main body, a lifting rod having a pull-down piece is fitted in the upper cylinder, and each stop cam is provided in the control drum. An operating lever is pivoted by a pin shaft to the lower part of the support that is integral with the main body directly above each of the rest cams, and a push-up rod is vertically abutted on each of the rest cams at one end of the operating rod. A lifting lever for raising and lowering the lifting rod is pivotally attached to the upper part of the column, and the other end of the lifting rod is connected to the other end of the operating lever via a spring rod, and is temporarily lowered into the recess of the barge member. In a sock knitting machine configured to store pieces, an intermittent feed cam is arranged in parallel on the control drum beside each of the rest cams, and a support shaft is mounted on the main body on the rotation path of the intermittent feed cam. An electromagnet with a switch is provided on a part of the support plate integral with the support plate, and a ram lever is mounted on a part of the actuation arm with a pin shaft attached to the main body. One end is biased by a spring and abuts, a swinging rod is pivoted to the lower part of the support column coaxially with the pin axis of the operating lever, and one end of the swinging rod is attached to the other end of the swinging rod. are connected via a release cable, the other end of this swinging rod is extended so as to operate the switch, and the position of the lever engaged with the holding plate 27 near the electromagnet is controlled by a stopper. The engaging lever is pivoted by being biased by a spring, one end of the engaging lever is connected to the output shaft of the electromagnet, and the locking portion at the other end of the engaging lever is engaged with and disengaged from the locking pin of the lifting lever. When knitting a continuous gusset knitted fabric on the standard socks knitted fabric, the pull-down piece is temporarily stored in the recess of the verge member, the knitted fabric pull-down operation is stopped, and the knitting is continued. This prevents damage to the knitted fabric.

(Example) Hereinafter, the present invention will be described with reference to an illustrated example.

In addition, the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.

1 to 4, reference numeral 1 denotes the main body of a sock knitting machine equipped with a double-headed cylinder, and as shown in FIG. A lower cylinder 3 is rotatably provided, and this upper cylinder 2
A barge member 4 is attached to the lower part of the barge member 4.
Further, a barge tube shaft 5 is provided at the axial center of the verge member 4, passing through the upper cylinder 2 and protruding upward. 6 slides in the axial direction, but is mounted so as to rotate integrally with the barge tube shaft 5. Furthermore, a pulling piece 7 is horizontally attached to the lower part of the lifting rod 6,
As shown in FIG. 2, this pull-down piece 7 is inserted into the bag knitted fabric parts such as the heel part W ₁ and the toe part W ₂ of the standard socks main body W, and the entire socks main body W is knitted in the straight parts. At the same time, it begins to pull downward.

In addition, in FIG. 2, the symbol W ₃ is the mouth rubber part,
W ₄ is a gusset knitted fabric. Also, the above heel part _W1 and toe part
When knitting W ₂ , the upper cylinder 2 and lower cylinder 3 reciprocate and rotate, and each knitting needle, etc. provided on the outer periphery of both cylinders 2 and 3 knits.

On the other hand, as shown in FIG. 1, a control drum (control drum) 8 is rotatably mounted on the main body 1 below the lower cylinder 3. It rotates or stops based on the composition program signal from the machine control panel.
Further, on the outer periphery of the control drum 8, a first rest cam 9a for the heel _W1 and a second rest cam _9b for the toe W2 are arranged in succession on the same circumference, and both the rest cams An operating lever 11 is connected to a pin shaft 12 at the lower part of the support 10 which is integral with the main body 1 directly above 9a and 9b.
It is pivoted so that it can rotate freely. Furthermore, a push-up rod 13 is attached to one end 11a of the operating lever 11.
is positioned vertically on the rotation path of each of the above-mentioned rest cams 9a, 9b, and a roller 13a is installed below the push-up rod 13, which is connected to the above-mentioned rest cams 9a, 9b.
It is attached so that it rolls on b.

On the other hand, on the upper part of the pillar 10, there is a lifting lever 14.
is rotatably mounted on a pin shaft 15, and one end 14a (see FIG. 4) of the lifting ram 14 is connected to the other end 11b of the operating ram 11 via a spring rod 16. There is. Further, as shown in FIG. 4, the other end 14b of the lifting lever 14 forms a fork portion 14d having a pin 14c, and this pin 14c is connected to an engaging portion formed on the upper part of the lifting rod 6. It engages with the circumferential groove 6a, and a weight 17 is screwed onto the upper part of the engagement circumferential groove 6a.
Furthermore, a pair of stoppers 1 are provided at the top of the pillar 10.
8a and 18b are attached, and each stop 18
a and 18b regulate the rotation range of the elevating lever 14.

On the other hand, as shown in FIG. 1, an intermittent feed cam 20 is arranged in parallel on the outer periphery of the control drum 8 beside the first pause cam 9a and the second pause cam 9b. An operating arm rod 22 that is mounted on the support shaft 21 of the main body 1 extends above the rotation path of the cam 20 . A contact piece 22a is formed at the free end of the operating arm rod 22 to protrude downward, and this contact piece 22a is located on the circuit path of the intermittent feed cam 20. Further, a bell-crank-shaped hammer rod 23 is rotatably mounted on the main body 1 near the contact piece 22a by a pin shaft 24, and one arm rod 23 of the hammer rod 23 is rotatably mounted on the main body 1 near the contact piece 22a.
a is in contact with the upper surface of the contact piece 22a, biased by the elasticity of a spring 25, and
3b is connected to one end of a bell crank-shaped swinging rod 28 coaxially pivoted to the main body 1 by the pin shaft 12 of the operating lever 11 via the release cable 26.

On the other hand, a flat support plate 27 is substantially integrally fixed in the middle of the support column 10, and an electromagnet 29 is provided in a part of the support plate 27. Further, the swinging rod 28 is mounted on the pin shaft 12 coaxially with the operating lever 11, and a lower end 28a of the swinging rod 28 is connected to one end of the release cable 26. The above swinging rod 2
The upper end portion 28b of 8 is extended so as to turn on and off a switch 30 that operates the electromagnet 29.

An engagement lever 31 is rotatably attached to the support plate 27 near the electromagnet 29 around a support shaft 32, and is also attached to rotate to the left around the support shaft 32 by the elasticity of a spring 33. Forced. moreover,
The lower end 31a of this engaging lever 31 is connected to the electromagnet 2.
The locking portion 31b formed at the upper end of the engagement lever 31 is connected to the output shaft 29a of the lifting lever 14 via a connecting rod 34. It is now possible to disconnect.
Furthermore, each stopper 35 is attached to the upper part of the support plate 27, and this stopper 35 is
As shown in FIG. 1, the rotation of the locking lever 31, which is biased by the spring 33, about the support shaft 32 is restricted to a vertical position.

The operation of the present invention will be explained below.

(1) When knitting a standard socks knitted fabric, that is, when knitting the socks knitted fabric shown in FIG. 2, the knitting process shown in FIG. According to the present invention, the socks body W is knitted by the upper cylinder 2 and the lower cylinder 3 and the knitting needles attached thereto, and also includes a mouth rubber part W ₃ , a heel part W ₁ , and a toe part W Organize ₂ . or,
A pair of pull-down rollers 19 provided below the lower cylinder 3 are adapted to pull down the knitted socks main body W without sag.

That is, the pulling piece 7 of the lifting rod 6 does not act to pull down the stockinette fabric during knitting of the bag knitted fabric portion.
As shown by the chain line in FIG. 4, the pull-down piece 7 is housed in the recess 4a of the verge member 4, and is used when starting to knit the straight part of the socks body W after knitting the bag knitted fabric part. As shown in Figure 4, in order to tighten the bag knitted fabric part that has loosened due to bag knitting, the bag engages with and pulls down the bag knitted fabric part (see Figure 5). ).

In this way, the pull-down piece ₇ of the sock knitting machine equipped with the above-mentioned double-headed cylinder can be
To eliminate the slack in the knitted socks fabric that occurs when knitting W ₂ , when knitting the bag knitted fabric portion of the socks main body W, the pull-down piece 7 is stored in the recess 4a of the verge member 4 and does not get in the way of the stockinette knitted fabric. I try not to become

(2) When knitting a gusset knitted fabric After knitting the standard socks knitted fabric shown in Fig. 2, when knitting a gusset knitted fabric as the next knitting process, as shown in Figs. 3 and 4. As shown, lifting rod 6
The pull-down piece 7 has been lowered to the lowest position, and the pull-down piece 7 completes the pull-down operation by inserting the toe portion _W2 of the socks body W so as not to loosen it.

Next, in order to knit a gusset knitted fabric by storing the pull-down piece 7 of the lifting rod 6 in the recess 4a of the barge member 4 from the state shown in FIG. 3 to the state shown in FIG. The intermittent feed cam 20 integrated with the control drum 8 starts rotating based on the command of the knitting program from the ground control panel.
This intermittent feed cam 20 is the contact piece 2 of the operating arm rod 22.
Push 2a upward. Then, this operating arm lever 2
Since the one-arm lever 23a of the ram 23 that is in contact with the free end of the ram 23 due to the elasticity of the spring 25 is rotated to the right around the pin shaft 24, the release cable 26 connected to the other arm 23b of the ram 23 is rotated to the right around the pin shaft 24. Since the swinging rod 28 is rotated to the right around the pin shaft 12, this swinging rod 28
28b actuates the switch 30.

Then, the switch 30 excites the electromagnet 29, so that the output shaft 29a of the electromagnet 29 rotates the engaging lever 31 to the left around the support shaft 32 against the elasticity of the spring 33 via the connecting rod 34. stoppa 35
comes into contact with.

That is, the engagement lever 38 is held substantially vertically, as shown in FIG.

On the other hand, as in the case of knitting the standard socks knitted fabric, since the control drum 8 is rotating based on the command of the knitting program from the control panel, the first rest cam of the control drum 8 is 9a
Since the push-up rod 13, which is integrated with the roller 13a, is pushed upward, the operating lever 11 connected to the upper part of the push-up rod 13 is rotated to the right around the pin shaft 12. Then, the operating lever 11 rotates the lifting lever 14 to the right around the pin shaft 15 via the spring rod 16, so that the pin 14c of the lifting lever 14
At the same time as the lifting lever 6 is raised against the weight of the weight 17, the locking pin 14e of the lifting lever 14 is engaged with the engaging portion 31b of the engaging lever 31 (see FIG. 1).

In this way, the pulling piece 7 of the lifting rod 6 is
The pull-down piece 7 is housed in the recess 4a of the barge member 4 so as not to interfere with the knitted stockinette fabric, and the pull-down piece 7 is suspended from pulling down the knitted fabric.

Note that the first rest cam 9a and the second cam of the control drum 8
The pause cam 9b rotates based on the command of the knitting program on the control panel, the push-up rod 13 integrated with the roller 13a descends, and the contact piece 2 of the operating arm 22
2a leaves the intermittent feed cam 20, as shown in FIG.
is removed from the engaging portion 31b of the engaging lever 31, so the lifting lever 6 connected to the engaging lever 31 is lowered using the weight 17. In other words, the pulling piece 7 of the lifting rod 6 is adapted to start pulling down the knitted fabric in the straight section.

[Effects of the invention] As described above, according to the invention, the main body 1 is provided with an upper cylinder 2 and a lower cylinder 3, and the upper cylinder 2 is provided with a lifting rod 6 having a pull-down piece 7.
and each rest cam 9a, 9b is fitted to the control drum 8.
An operating lever 11 is pivotally connected to the lower part of the support 10 integral with the main body 1 directly above each of the stop cams 9a, 9b with a pin shaft 12, and a push-up rod 13 is attached to one end of the operating lever 11. Each rest cam 9a, 9b
A lifting lever 14 for raising and lowering the lifting rod 6 is pivotally connected to the upper part of the pillar 10, and a spring rod 16 is connected to the other end of the lifting rod 14 to connect the operating rod 11 and the like. In the sock knitting machine in which the pull-down piece 7 is connected to the end portion and temporarily stored in the recess of the barge member 4, each of the above-mentioned pause cams 9a, 9
An intermittent feed cam 2 is mounted on the control drum 8 beside b.
0 are arranged in parallel, and an operating arm rod 22 is mounted on the rotation path of the intermittent feed cam 20 by a support shaft 21 on the main body.
An electromagnet 29 with a switch 30 is provided on a part of the supporting plate 27 integral with the support column 10, and an electromagnet 29 with a switch 30 is provided on a part of the operating arm 22 and mounted on the main body 1 with a pin shaft 24. One end of the lever 23 that has been
The swinging rod 28 is pivoted coaxially with the pin shaft 12 of the operating lever 11 at the lower part of the support column 10, and the swinging rod 28 is attached to the other end of the operating lever 23.
8 is connected via the release cable 26, and the other end of the swinging rod 28 is connected to the switch 30.
The stopper 35 is extended to operate the lever 31 and engages the support plate 27 near the electromagnet 29.
One end of this engagement lever 31 is connected to the output shaft 31b of the electromagnet 29 to the locking pin 14 of the lifting lever 14.
Since it is provided in such a way that it can be connected to and removed from the knitted fabric, it not only eliminates the risk of damaging the knitted fabric, but also improves quality and has the advantage of being applicable to existing sock knitting machines. It has a great effect. Furthermore, since the present invention uses the electromagnet 29, it is possible to freely adjust the operating stroke and timing compared to, for example, an intermittent feed mechanism using a ratchet mechanism, and based on this, the knitting growth of the gusset knitted fabric is increased. can be adjusted freely.

[Brief explanation of the drawing]

FIG. 1 is a side view of a knitted fabric lifting and stopping device in a sock knitting machine equipped with a double-ended cylinder according to the present invention, FIG. 2 is a side view of a knitted fabric knitted according to the present invention, and FIG. FIG. 4 is a side view showing the essential parts of the present invention. FIG. FIG. 7 is a side view of the knitted fabric, which is a perspective view of the pull-down piece incorporated therein. 1... Main body, 2... Upper cylinder, 3... Lower cylinder, 6... Lifting rod, 7... Lowering piece,
8...Control drum, 9a...First rest cam, 9b
...Second pause cam, 10...Strut, 11...Operating lever, 13...Pushing rod, 14...Elevating lever, 14e...Lock pin, 16...Spring rod, 20...Intermittent feed Cam, 22...operating arm rod,
26...Release cable, 27...Support plate, 2
8... Swinging rod, 29... Electromagnet, 30... Switch, 31... Engaging lever, 31b... Engaging portion.

Claims (1)

[Scope of utility model registration request] Main body 1 includes upper cylinder 2 and lower cylinder 3
The upper cylinder 2 is fitted with a lifting rod 6 having a pull-down piece 7, and the control drum 8 is provided with rest cams 9a, 9b.
An operating lever 11 is pivotally attached to the lower part of the support 10 which is integral with the main body 1 directly above the main body 1, and a push-up rod 13 is vertically attached to one end of the operating lever 11 to each of the rest cams 9a and 9b. A lifting lever 14 for raising and lowering the lifting rod 6 is pivotally connected to the upper part of the support column 10, and a spring rod 1 is attached to the other end of the lifting rod 14.
connected to the other end of the operating lever 11 via 6;
In a sock knitting machine in which the pull-down piece 7 is temporarily housed in the recess of the verge member 4, an intermittent feed cam 20 is arranged in parallel on the control drum 8 beside each of the pause cams 9a, 9b, and this intermittent feed An electromagnet 29 is provided with an operating arm 22 mounted on the main body via a support shaft 21 extending over and in contact with the rotation path of the cam 20, and a switch 30 is provided on a part of the support plate 27 integral with the support 10. A swing rod 28 is provided at the lower part of the support column 10, and one end of a lever rod 23, which is mounted on the main body 1 by a pin shaft 24, is urged by a spring 25 and abuts on a part of the operating arm rod 22. The pin shaft 1 of the above operating lever 11
2, one end of the swinging rod 28 is connected to the other end of the lever 23 via a release cable 26, and the other end of the swinging rod 28 is connected to the switch 30. The engaging lever 31 is pivotally attached to the support plate 27 near the electromagnet 29 by being biased by a spring 33 so as to restrict its position with a stopper 35. is connected to the output shaft 29a of the electromagnet 29, and the engaging lever 3
1. A sock knitting machine equipped with a double-headed cylinder, characterized in that a locking portion 31b at the other end of the lifting lever 14 is configured to lock and disengage from a locking pin 14e of the lifting lever 14.