KR0122597B1 - Electro magnetic needle selection device for circuit knitting machine - Google Patents

Abstract

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Description

Electronic needle needle device in circular knitting machine

Figure shows an embodiment of the present invention,

1 is a longitudinal sectional view showing a main portion of a knitted portion.

2A and 2B are arrangement diagrams showing the relationship between a single needle, a spring jack, a bullfighting arm lever, a locking jack (FIG. 2A), a cam, and an electromagnet (FIG. 2B).

3 is a plan view of the canceling cam.

4 is a side cross-sectional view showing the relationship between the cleaning cam and the lower permanent magnet.

5 is a side cross-sectional view showing the relationship between the locking jack, the control electromagnet, the upper and lower permanent magnets.

6 to 10 are longitudinal sectional views showing a main portion of the knitting for explaining the operation state.

* Explanation of symbols for main parts of the drawings

1: small cylinder 2: single needle

3: spring jack 5: control cam

6: Selection Cam 9: Large Cylinder

10: two-arm lever (11) lever 11: cancelling cam (cancelling cam)

13: Locking Jack 14: Locking Jack

15: control electromagnet 16: control electromagnet

19: permanent magnet 20: permanent magnet

The present invention relates to an electron beam needle device for flat patterning of circular knitting machines. Background Art Conventionally, numerous inventions and designs have been known as an electron beam needle device of a circular knitting machine that enables selection of three positions of knit, tuck, and welt.

For example, according to the invention of Japanese Patent Application No. 53-1865, which is related to the applicant's patent, permanent magnets are compounded and installed at the upper and lower portions of the jack, respectively, and are balanced by the magnetic force around the center of the jack. This balance is broken, and the control electromagnet is operated with the signal output from the program, thereby breaking the balance and making a selection. According to this conventional technique, the upper permanent magnet attracts and contacts the upper part of the jack to the pole surface of the magnet, and maintains its position until the jack is completely engaged with the lifting cam when no signal is input to the control electromagnet. do. On the other hand, the lower permanent magnet inherits the jack drawn out by the control electromagnet, pulls it further, and secures the position until the jack completely exits the lifting cam. Between the lower permanent magnet and the support point in the center of the jack, two electromagnets are arranged on a vertical line. There are two types of jacks, each having two different types of contacts with different heights in the vertical direction, namely the low position contact and the high position contact. These two types of jacks are alternately arranged in the cylinder grooves, and control electromagnets are arranged on the same straight line up and down to face each row of the low position contactors and the high position contact rows.

With this configuration, the knit and the welts are selected in the needle threader of the first yarn feeder, and the jaws and welts are selected as the needle needle of the second yarn yarn. In this conventional technique, two pin needle devices are arranged one by one, so that the distance between the yarn feeding holes becomes longer because of the two needle needle devices. In order to enable the manufacture of an electronic pattern knitting machine having a large number of yarn feeders, a control electromagnet necessary for the needle tip is required by an increase in the number of yarn feeders. Therefore, miniaturization of the control electromagnet is considered, but the control electromagnet cannot be made smaller than a certain size in order to obtain the necessary magnetic force due to the tip needle.

In addition, since the jack directly operates the needle, the cam stroke for moving the jack up and down requires at least 12 mm. Although the cam control width is narrowed as much as possible to reduce the upper and lower strokes of the jack, or to eliminate the upper and lower strokes, the distance between the individual feed ports must be shortened, but it is difficult to sufficiently satisfy this request with the above-described prior art. .

The present invention has been made to solve such a problem, and an object thereof is to provide an electronic pattern circular knitting machine which enables a large number of yarn feeding holes while shortening the cam control range. According to the electron beam needle device of the present invention, a large rotary cylinder disposed on the same axis, a knitting needle accommodated in a groove of a small cylinder, a control cam for controlling the knitting needle, and an elastic body provided directly below the knitting needle. Two types of locking jacks, each having a spring jack and an optional cam to which the spring jack hangs or strips, a contact of varying height, which is received in a groove of a large cylinder and which swings in a radial direction; Two sets of control electromagnets, which are set in multiple stages in the longitudinal direction and also in the horizontal direction, are combined to face the upper part of the front locking jack, and the upper permanent magnet which fixes the position of the locking jack; It is arranged on the lower part of the locking jack, and is arranged on the upper part of the upper cylinder and the permanent magnet in the lower part to balance the magnetic force related to the locking jack, and interlocks between the spring jack and the locking jack. Selects a bullfighting arm lever, a canceling cam that presses the bullfighting arm lever inwards, and a welt to remove the lower part of the spring jack from the engagement of the selection cam, or the lower part of the spring jack to the selection cam. And a first needle tip means for selecting the latter to engage with the jaw / knit in advance, and a second needle tip means for selecting the latter tuck / knit by engaging or peeling the lower portion of the spring jack on the selection cam. . Preferably, the lever ratio of one of the bullfighting arm levers and the other arm is 1: 1: 1-2, and the shape thereof is L-shaped.

Further, by arranging large and small cylinders in combination, it is preferable to be a knitting machine which enables a needle needle of 32 gauge or more. According to the present invention, when the first and second needle restraints are not energized, the upper end of the locking jack is held by the upper permanent magnet, and the arm of the bullfighting arm lever is pushed out by the elastic force of the spring jack by the cansling cam. The other arm, which rotates downward in accordance with the rotational movement in the direction, is inserted into the back surface of the locking jack, so that the lower portion of the spring jack is engaged with the selection cam, so that the selection for shifting to the knit / jaw in advance is selected. By the same operation, the needle needle of the knit is made by the second needle needle means.

In addition, during energization of the first and second precipitating means, the magnetic balance of the upper permanent magnet and the lower permanent magnet is broken to attract the contacts of the corresponding locking jacks, so that one arm of the bullfighting arm lever is moved inwardly by the cansling cam. Welt that the lower side of the spring jack escapes the engagement of the selection cam, as the other arm, which is rotated upwardly as it is pushed out, is pulled out of the back surface of the locking jack, and then abuts on its top by elastic force of the spring jack. Is selected by the first needle tip means, and the jaw is selected by the second needle tip means by the same operation.

As a result, in comparison with the conventional apparatus for selecting three positions of knit, tuck, and welt as secondary yarn, in the present invention, the distance between the needle points can be shortened by providing a bullfighting arm lever between the locking jack and the spring jack. The number of the yarns can be increased by selecting three positions of knit and tuck welt as primary yarns.

EMBODIMENT OF THE INVENTION Below, the Example of this invention is described according to an accompanying drawing. 1 is a longitudinal cross-sectional view showing the main part of the knitting portion, and in the drawing, reference numeral 1 denotes a small cylinder. In the outer periphery of the small cylinder 1, a plurality of needle grooves 1a extending in the axial direction arranged in a circle are formed.

Each needle groove 1a is housed with a needle needle 2 that slides freely in the vertical direction, and each needle needle 2 has at least one batt 2a for operation.

Immediately below the knitting needle 2, a spring jack 3 having an inherent elasticity for selectively raising the knitting needle 2 is housed.

As shown in FIG. 2A, the spring jack 3 includes a shoulder 3a, an upright outer edge 3b, a stem 3c, a selection bat 3d, a lowering bat 3e, It has a vertical lower extension part 3f.

The shoulder 3a pushes up the knitting needle 2 in contact with the bottom of the knitting needle 2 when the spring jack 3 is raised. The upright outer edge part 3b is pressurized so that the back part of the knitting needle 2 may always be pushed outward by the elastic force of the spring jack 3. Step 3c is a relatively thin elastic body that is automatically returned to its original position when the vertical lower extension 3f of the spring jack 3 is pushed inward.

As shown in FIG. 1, the first cam holder 4 facing the small cylinder 1 includes at least one control cam 5 and a spring jack 3 for controlling or operating the knitting needle 2. The selection cam 6 which engages or disengages the selection bat 3d of d, and the lowering cam 7 which lowers the spring jack 3 are provided. The first cam holder 4 is attached on the cam ring 8. Moreover, the bullfighting arm lever 10 is accommodated in the upper end part of the base cylinder 9 of the lower side corresponding to each spring jack 3 so that rotational movement in the radial direction of the base cylinder 9 is possible.

As shown in FIG. 2A, the bullfighting arm lever 10 has an upright arm 10a having an inner rim portion having an arc shape, and a horizontal arm 10b having an arc-shaped protrusion 10c at its lower end. And a circular support point 10d and a bow-shaped portion 10e that is continuous to the circular support point 10d and connects both arms 10a and 10b.

The lever ratio of the upright arm 10a and the horizontal arm 10b is preferably 1: 1-1: 1, and particularly preferably 1: 1.

The upright arm 10a is pushed inwardly by the vertical lower extension part 3f of the spring jack 3 which abuts when the rotary arm is pushed inwardly by the cansling cam 11. . When the horizontal arm 10b is rotated downward, the arc-shaped protrusion 10c is inserted between the rear portion of the top portion of the locking jacks 13 and 14 and the bottom of the groove of the cylinder 9 when the arc-shaped protrusion 10c is described later. Moreover, when it rotates upward against the elastic force of the spring jack 3, it will come out of the back surface of the locking jacks 13 and 14, and will contact with the top part.

The bow portion 10e is in contact with the protection means 12 for preventing the bullfighting arm lever 10 from moving upward.

As shown in FIG. 3, the canceling cam 11 becomes the projection part 11a which protruded inwardly, and the circular arc-shaped part (it looks almost straight in the figure) 11b which is a little longer, The projection part 11 11a has a short straight portion 11c and an inclined portion 11d.

The holding and holding means 12 of the canceling cam 11 and the tour arm lever 10 are attached to the upper cam ring 8. Furthermore, the protection means 12 can be attached to the cansling cam 11 without being attached to the upper cam ring 8. Two kinds of locking jacks 13 and 14 are accommodated in the grooves of the large cylinder 9 corresponding to the bullfighting arm lever 10.

The difference between the locking jacks 13 and 14 is that each has a contactor having a different height described later.

The locking jacks 13 and 14 can move freely with their support points almost at the center so that they do not move in the up and down direction and can swing relative to the radial direction of the large cylinder 9.

The large cylinder 9 is arranged on the same axis with respect to the small cylinder 1, but the diameter thereof is larger than that of the cylinder 1.

For example, if the large cylinder 9 is a 28G knitting machine, the small cylinder 1 corresponds to the 32G knitting machine in the case of a single cylinder. As a result, the combination of small and large cylinders enables production of an electronic pattern knitting machine of 32G or more, which has not been possible in the prior art.

Two control electromagnets 15 and 16 are stacked on top of the large cylinder 9 so as to face the locking jacks 13 and 14 and are attached to the second cam holder 17. The control electromagnets 15 and 16 have the same structure as the invention of Japanese Patent Application No. 53-1865 of the applicant. The second cam holder 17 is attached to the lower cam ring 21. On the lower side of the cylinder 9, there is a drive gear 22 which is provided in one body and rotates at the same speed as the small cylinders 1 and 9 when driven by a drive source arranged in a machine. On the lower cam ring 21, there is a support 23 arranged at equal intervals, and the upper cam ring 8 is fixed.

As described above, the locking jacks 13 and 14 each have a high contact 13a and a low contact 14a different in height, and have the following parts. That is, the lower end portion is provided with extension portions 13c and 14c which engage with the clearance cam 18 and are pushed into the large cylinder 9 and are in contact with the horizontal arm 10b of the bullfighting arm lever 10 ( 13d) and (14d), and with lowering batts (13e) and (14e) capable of swinging with support for evacuation (13b) and (14b) as support points. Upper side outer edge parts 13f and 14f which are attracted are provided. As shown in FIG. 4, the grooming cam 18 has a portion 18a inclined inward, a straight portion 18b, and a portion 18c inclined outward.

The two control electromagnets 15 and 16 mentioned above are equipped with the two magnet pole surfaces 15a and 16a of a vertical line arrangement, respectively, as shown in FIG. Each of the contacts 13a and 14a facing the magnet pole faces 15a and 16b is in contact with the surface. The coils of the control electromagnets 15 and 16 are connected to a current source for supplying a pulse current in accordance with a previously recorded program. The upper permanent magnet 19 and the lower permanent magnet 20 are compounded and installed on the lower side with the control electromagnets 15 and 16 interposed therebetween.

The upper outer edge portions 13f and 14f of the locking jacks 13 and 14 are always magnetized to the upper permanent magnet 19, and the extensions 13c and 14c are magnetically to the lower permanent magnet 20. Aspirated. The upper permanent magnet 19 has magnet pole surfaces 19a and 19b, and each has a notch 19c for weakening magnetic force at the center of the magnet pole surface. The lower permanent magnets 20 are two permanent magnets 20a which are disposed directly under the above-described rearranging cam 18 as shown in FIG. 4 and form a working surface having a shape substantially the same as that of the rearranging cam 18. ) And (20b), for example, notches 20c and the like are provided for weakening the magnetic force in the center portions of the permanent magnets 20a and 20b. The notch 20c and the notch 19c of the upper permanent magnet 19 are on the same vertical line.

As shown in FIG. 2, when the control electromagnet of the structure mentioned above does not input a pulse electric current into the 1st control electromagnet 15 and the 2nd control electromagnet 16 by the 1st needle needle A (normally). At the time of rotation), it works as follows. In FIG. 2B, when the rotating cylinders 1 and 9 rotate in the direction of the arrow, the locking jacks 13 and 14 have upper outer edge portions 13f and 14f attached to the permanent magnet 19. As shown in FIG. In this state, the guide path 21 is moved laterally with the lowering bets 13e and 14e as the guides. On the other hand, the spring jack 3 is at the lowest position, and the selection bat 3d at its lower end is engaged with the selection cam.

Further, when the locking jacks 13 and 14 move, the locking jacks 13 and 14 follow the clearance cams 18 and the inclined surface 18a shown in FIG. ), And the upper end outer edge portions 13f and 14f are rotated to the outside of the cylinder, and the lower end portions 13c and 14c are gradually pushed into the grooves of the large cylinder 9 by this.

Further, when the locking jacks 13 and 14 are moved, the magnetic force of the permanent magnet 20 is applied, and the lower ends 13c and 14c are attracted by magnetism, so that the balance of the first locking jacks 13 and 14 is balanced. This is to be maintained. When the straight portion 18b is reached, the lower ends 13c and 14c are pushed to the deepest portion of the cylinder groove. Immediately after the extensions 13c and 14c of the locking jacks 13 and 14 are pushed to the deepest part of the groove of the large cylinder 9, the locking jacks 13 and 14 are notches 19c, The first needle position A on the vertical line of 20c is reached, and then the magnetic force of both permanent magnets 19 and 20 is temporarily weakened by the gap portion 19c which is excavated. As shown, the upper outer peripheral portions 13f and 14f are sucked and supported only on the magnet pole surface 19b, and at the position of the notch 20c of the lower permanent magnet 20, the extension portions 13c and 14c. Is temporarily released from magnetic aspiration. At this point of time, the high contact 13a and the low contact 14a facing the first control electromagnet 15 and the second control electromagnet 16 are the first control electromagnet 15 and the second control electromagnet 16. Move sideways without being affected by). When the locking jacks 13 and 14 pass through the notches 19c and 20c at the first needle point position A, the vertical arm 10a of the bullfighting arm lever 10 moves to the canceling cam 11. As it is pushed inward by the projection part 11a, the horizontal arm 10b rotates upwards. In accordance with the rotational movement of the horizontal arm 10b, the arc-shaped protrusion 10c exits from the state inserted into the top part of the top of the locking jacks 13 and 14, and the top of the locking jacks 13 and 14, respectively. In contact with, the selection batt 3d of the spring jack 3 temporarily deviates from the engagement of the selection cam 6. When the locking jacks 13 and 14 pass through the straight portion 11a of the canceling cam 11, the arc-shaped projection 10c is immediately formed by the rotational movement of the horizontal arm 10b. It is inserted in the back surface of the top part of the locking jacks 13 and 14 by elastic force. At this time, the selection bat 3d is engaged with the selection cam 6 again, and the spring jack 3 is raised. As a result, the knitting needle rises from the state of FIG. 6 to the position of the jaw or the position of the knit as shown in FIG.

Further, when the locking jacks 13 and 14 reach the second needle position B with the rotation of the cylinders 1 and 9, the first control electromagnet 15 and the second control electromagnet 16 ), The high contact 13a or the low contact 14a is not influenced by the first control electromagnet 15 and the second control electromagnet 16 at the time of non-energization. Then, as shown in FIG. 8, it rises to the position of a knit.

The locking jacks 13 and 14 conduct electricity to either the first control electromagnet 15 or the second control electromagnet 16 at the second needle position B of the notches 19c and 20c. In this case, the magnet pole surface 15a or 16a overcomes the suction force of the magnet pole surface 19A to magnetically suck the high contact 13a or the low contact 14a of the locking jacks 13 and 14. As a result, the extension portions 13c and 14c of the locking jacks 13 and 14 are pulled outward and the upper end portion thereof is pushed into the groove of the large cylinder 9. When passing through the second needle point position B, it is pushed into the cylinder by the vertical lower extension 3f of the spring jack 3 like the vertical arm 10a of the bullfighting arm lever 10. In connection with this, the horizontal arm 10b is rotated upwards, and the arc-shaped protrusion 10c falls on the back surface of the locking jacks 13 and 14, and the top part of the locking jacks 13 and 14 is rotated. Touches. Accordingly, the spring jack 3, in which the vertical lower extension 3f is pushed into the cylinder, passes through the front face of the selection cam 6 from which the selection batt 3d is released from engagement of the selection cam 6. As a result, the spring jack 3 moves laterally as it is, and as shown in FIG. 9, the knitting needle does not rise any more and becomes the position of the jaw. Thereafter, the spring jack 3 is brought down by the downward inclined portion 7a of the lowering cam 7 after the selection batt 3d is again engaged with the selection cam by the elastic force of the spring jack 3. do. On the other hand, the knitting needle 2 is also led to the lowest point by the stitch cam 5a.

Further, according to the rotation of the cylinders 1 and 9, the first control electromagnet 15 or the second control at the next needle point position, that is, the first needle point position A of the notches 19c and 20c. When either of the electromagnets 16 is electrically energized, the magnet pole surface 15a or 16a overcomes the suction force of the magnet pole surface 19A to attract the high contact 13a or the low contact 14a by magnetic force. As a result, the extension portions 13c and 14c of the locking jacks 13 and 14 are pulled outward, and the upper end portion thereof is pushed into the groove deep of the large cylinder 9. When passing through the first needle position A, together with the vertical arm 10a of the bullfighting arm lever 10, the vertical lower extension 3f of the spring jack 3 is also cylinderd by the canceling cam 11. Pushed into me. Along with this, the horizontal arm 10b is rotated upward, and the arc-shaped protrusion 10c is separated from the back surface of the locking jacks 13 and 14 so that the top portion of the locking jacks 13 and 14 is rotated. Abuts on the top. Therefore, the selection batt 3d of the spring jack 3 into which the vertical lower extension 3f is pushed into the cylinder is released from the engagement of the selection cam 6 and passes through the front surface of the selection cam 6. As a result, the spring jack 3 moves laterally as it is, and as shown in FIG. 10, the knitting needle does not rise any more and is in a welt position. Thereafter, neither the spring jack 3 nor the knitting needle 2 moves laterally as it is.

According to the present invention, a bullfighting arm lever is provided between the spring jack and the locking jack, and furthermore, a control cam for raising or lowering the locking jack is not required, because the locking jack only performs rocking motion in the radial direction of the cylinder. Compared with the conventional apparatus which selects three positions of knit, tuck, and welt as the yarn feeder, the distance between the needle positions can be shortened. Therefore, three positions of knit, tuck and welt can be selected as the first yarn, and the number of yarns can be increased.

Moreover, the locking jack only swings in the radial direction of the cylinder, so that the locking jack withstands the use for a long time, which significantly increases the service life.

Claims (4)

Large and small rotary cylinders 9 and 1 coaxially arranged, the knitting needle 2 accommodated in the groove of the small cylinder 1, the control cam 5 for controlling the knitting needle 2, and the knitting needle 2 Spring jack 3 of an elastic body provided directly below the head), and a selection cam 6 caught or peeled by the spring jack 3, and a height accommodated in the groove of the large cylinder 9 and oscillated in the radial direction. Are provided with two types of locking jacks 13 and 14 having different contacts 13a and 14a, and a plurality of stages in the longitudinal direction with respect to the contacts 13a and 14a and at the same time in the horizontal direction. The two pairs of control electromagnets 15, 16, 15 and 16 and the locking jacks 13 and 14 are provided so as to face each other, and the locking jacks 13, The upper permanent magnet 19 for fixing the position of (14) and the lower portion of the locking jacks 13 and 14 are compounded and installed to balance the magnetic force related to the locking jacks 13 and 14. The lower permanent magnet 20 for holding the upper and upper cylinders 9 Oh, the bullfighting arm lever 10 which bridges between the spring jack 3, the locking jack 13, and 14, and interlock | operates, and which presses the one arm of this bullfighting arm lever 10 to push inward. Selection of the welting cam 11 and the welt to remove the lower part of the spring jack 3 from the engagement of the selection cam 6, or the lower part of the spring jack 3 to the selection cam 6 A first needle tip means for selecting to shift to the jaw / knit in advance, and a second needle tip means for selecting the latter tuck / knit by hanging or peeling the lower portion of the spring jack 3 on the selection cam 6; Electron needle needle device in circular knitting machine. The electron beam needle point device according to claim 1, wherein the arm (10a) on one side of the bullfighting arm lever (10) and the arm (10b) on the other side have a lever ratio of 1: 1: 1: 1. The electron beam needle device according to claim 1 or 2, wherein the bullfighting arm lever (10) is L-shaped. The electron needle needle device in a circular knitting machine according to any one of claims 1 and 2, wherein a needle needle of at least 32 gauge is possible in the small cylinder (1).

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