JPS6038701Y2 - Knitting needle vibration prevention device - Google Patents

Description

[Detailed description of the invention] The present invention prevents the vibration of the knitting needles when feeding yarn to unlocked knitting needles of stockinette fabric in a knitting machine, especially a flat knitting machine, thereby ensuring reliable yarn feeding and looping. Concerning what the organization was able to obtain.

In general, stockinette knitted fabrics, particularly flat knitted fabrics knitted by flat knitting machines, are often used as fabrics for the collars, cuffs, hem openings, etc. of clothing.

This flat-knitted fabric is a fabric in which flat-knitted fabric A is continuously knitted with intervening sections B for each required dimension, as shown in Fig. 1, which shows the appearance of the finished knitted fabric. is the waste part B
By cutting and removing the material, individual pieces of flat knitted fabric a are obtained, which are used for the desired purposes such as collars, cuffs, hem openings, etc.

Regarding the knitting structure in the vicinity of this waste knitting part, one known example of the most common model pattern is shown in FIGS. 2 and 3 and FIGS. 11 and 12.

That is, FIG. 2 is a cross-sectional view of the structure near the waste section, and the 12th
The figure is a plan view of the same, and in both figures, A shows the rubber knitted part that becomes the flat knitted fabric piece a in Fig. 1, and B shows the waste knitted part shown in Fig. 1, which continues from the rubber knitted part A. The opening is a set-up part by new yarn feeding following this waste knitting part B, C is a bag knitting part knitted following the opening of the set-up part, and A is knitting continuing to this bag knitting part. The rubber knitted part that will become the next flat knitted fabric piece a is shown, and the flat knitted fabric A will be formed by repeating the rubber knitted part, waste knitted part B, set-up part, bag knitted part, elastic knitted part A.

In FIG. 12, b indicates a loose knitting loop in the loose knitting portion B, and C indicates a set-up loop at the opening of the set-up portion.

As is well known, in FIG. 3, after knitting the rubber knitting section A from the left direction on a bad day in the required course (required dimensions), as is also clear in FIG. One pass is knitted to form a waste stitch part B, and at the end of the knitting of the waste stitch part B, all the loops on one side of the bag stitch are released from the knitting needles as shown in the figure. b' in the figure indicates the final loop that has been removed.

This knitting operation results in movements as shown in FIGS. 3 and 11.

That is, in FIG. 3, 1 and 2 indicate the respective knitting needles of a knitting needle row arranged so as to be able to move back and forth across opposing needle beds in a flat knitting machine,
As shown in Figure A, after knitting each front stitch and back stitch of rubber knitting part A using both knitting needles 1 and 2, knit two coats of bag stitches using flat knitting, and then As shown in the figure, one knitting needle 1 is raised to the highest position, and its knitting loop b' is positioned below the bellows 1' (corresponding to I in Fig. 11). By lowering it, the bellows 1' are closed with the hooks 1'' and come out of the loops b', so that one side of the bag stitch in the loose knitting section B completely separates from the knitting needles 1 (corresponding to H in Fig. 11). .

The loop on the opposite side of this loose knitting part B remains locked on the bellows 2' of the other knitting needle 2.

Therefore, next, the lowered knitting needles 1 must be raised and returned to the knitting position to knit the set-up mouth bag knitting part C and the next rubber knitting part A between them and the knitting needles 2.

To do this, while raising the lowered knitting needle 1 to the knitting position, as shown in FIG. The knitting yarn 3 is fed at the knitting position of
As shown in the figure, the set-up opening is knitted together with the knitting needles 2.

However, during this yarn feeding and knitting, the knitting needles 1 are extremely susceptible to vibration and oscillation because the stitch loops are not locked at all on the needle 1 side and are located in the needle groove of the needle bed. For this reason, the bellows 1 is turned open using a brush, etc.
' may be reversed to the rack 1'' side due to vibration and closed again, and therefore, the yarn 3 is not fed to the closed knitting needle 1 of the bellow 1', and the stitches at the opening of the normal set-up part are not fed. are not formed, resulting in skipped stitches and knitting defects, and these troubles tend to occur very frequently.

In addition, in FIG. 11, the opposite knitting needle 2 side is omitted, and is present in the opposite direction at an intermediate position between the knitting needles 1 shown in the figure.

Note that in the figure, X indicates the lid opening.

The present invention was devised to solve these problems, and as described above, after the knitting loop is separated from the needle, the knitting needle is automatically prevented from vibrating when the knitting loop is opened. In addition, a vibration prevention member made of an elastic material such as a brush or a flexible foam material is used in conjunction with the knitting operation to suppress the knitting needles that are away from the restraint of the knitting fabric so that they do not vibrate.
In addition, the knitting needle is separated from the knitting needle during normal knitting of fabric, and its characteristics are that the knitting needle actuating bearing is provided with a movement mechanism equipped with a knitting needle vibration prevention member, and the one side rack of the reciprocating rack mechanism is provided with the knitting needle vibration prevention member. By providing the driving member of the movement mechanism, the vibration preventing member is provided so as to be able to move toward and away from the knitting needles.

The present invention will be described in detail with reference to the embodiments shown below. In FIGS. 4 and 5 (V), brushes 4, 4 for opening the bellows are provided with respect to the knitting needles 1, 2 in a conventional manner, In addition to this, in the present invention, as the vibration preventing member 5, a brush as shown in the figure or a member made of an elastic material such as a flexible foam material can be freely attached to and separated from the knitting needle 1 side described in Fig. 3. It is arranged movably and is provided so that it is activated only when feeding the yarn.

As is well known, in a flat knitting machine, a knitting cam is used to move each knitting needle forward and backward using a knitting cam using a bearing against rows of knitting needles that are arranged so as to be able to move forward and backward in a criss-cross pattern relative to each other in each needle groove of a fixed needle bed. Generally, a rack and pinion mechanism is used to operate the carriage, and in the present invention, a vibration prevention member 5 for the knitting needles 1 is provided on the carriage side, and this is attached to the rack. It is operated by a drive member on the side.

In other words, as is well known, the relationship structure between the bearing and the rack is the fifth one.
An example of this is shown in the figure, in which a pair of carrying rings 6 (only one of which is shown in the figure) arranged on each row of knitting needles on opposing needle beds are connected by a saddle 7. The movement accompanies the formation cam (not shown).
operates the knitting needle butt to move it forward and backward (up and down), knitting needle 1,
2 to carry out the required knitting movement, racks 8, 9 are used for switching said knitting cams.

That is, the racks 8 and 9 are pushed by the stud pins 10 and 11 on the pattern drum side using a pattern drum or the like, and if one end of the rack 9 hits the stud pin 11 side now, the racks 9 will move in the same direction. The rack 8 on the opposite side is pushed to the left in the figure via the pinion 12 on the carrying 6 side, and the upper end of the rack 8 is fixedly arranged on the rack 8 side. Fixing pieces 13 of different heights move together with the rack 8, and a roller 14 in contact with the fixing piece 13 is located at an appropriate position above or below, and the position of the knitting cam that interlocks with the roller 14 is controlled. However, it is very well known that the height of the knitting cam is changed by the racks 8, 9 pinions 12 fixing pieces 13, and the present invention will only give a schematic explanation of it. In the known carrying 6-rack 8.9 mechanism, the present invention provides the vibration prevention member 5 as shown in FIGS. 6 to 10.
As shown in detail in the figure, it is disposed on the carrying 6 side together with its movement mechanism, and its driving member is disposed on the rack 8 side.

That is, as shown in FIG.
The arm 5a of the vibration prevention member 5 is fixed to the other end of the rotating piece 15.

Furthermore, one end of a slide piece 19, which is also slidably attached to the upper side surface of the carriage 6 via the elongated hole 17 and the guide pin 18, is attached to the other end of the rotating piece 15. Movably connected, the same slide piece 1
The other end of the slide piece 19 is located close to the rank 8 side, and the operating piece 22 provided on the rack 8 is provided at the other end of the slide piece 19.
This means that they can be engaged in a freely interlocking manner.

As mentioned above, this rack 8 is used for switching formation cams.
As it moves from side to side, the actuating piece 2
2 also accompanies it, and it reciprocates between the illustrated position A and C position in FIG. 11th.
As explained in Fig. 12, after the knitting needles 1 are removed all at once, the knitting needles 1 are raised again from the lowered position as shown in Fig. 11H to knit the set-up loop C at the set-up opening. When changing the position of the knitting cam by the rack 8 in order to raise the knitting cam to the yarn feeding position shown in FIG. 7, the rack 8 is moved to the left in FIG.
This is done by a moving stroke from position C to position C, thereby establishing a positional relationship such that the set-up loop C is knitted at the set-up opening shown in FIG.

Therefore, when knitting the loose knitting part B by bag knitting shown in the figure, the bag knitting part C that follows this, and the rubber knitting part A that follows this, other than knitting the set-up loop C, the actuating piece 22 It is assumed that the rack 8 moves back and forth between the illustrated positions A and B.

According to the present invention, as mentioned earlier, the loose knitting part B is made by bag knitting.
After knitting with the knitting needles 1 and 2, the knitting needle 1 side leaves the loop b' on one side and then knits the set-up opening. When the rack 8 moves to change the cam, the actuating piece attached to it 22 moves together from position B to position C.

At this time, one end of the actuating piece 22 is engaged with the left end side of the elongated hole 23 of the slide piece 19 as viewed in FIG. At this time, the connecting elongated hole 20 with the rotating piece 15 is
has one end engaged with the pin 21 of the rotating piece 15 as shown in FIG. The prevention member 5 is pressed into contact with the needle rod portion of the knitting needle 1 as shown in FIG. 10 through the displacement of the arm 5a.

Therefore, in this inhibited state, the yarn 3 for the opening of the set-up portion shown in FIG. There is no possibility that the yarn will be reversed again to the `` side'' and closed, and reliable yarn feeding and smooth knitting operation of the set-up loop C can be performed.

In this way, as shown in Figure 12, when the desired set-up section opening has been knitted together with the knitting needles 2, knitting is then transferred to the bag knitting section, but at this time, the rack 8 is moved to the seventh position in order to switch the knitting cam.
In the figure, the actuating piece 22 is moved to the right in the figure, and the actuating piece 22 is moved from position C to position A in the figure, so the slide piece 19 is also slid to the right in the figure, and the rotating piece 1
5 is operated in the opposite direction through the elongated hole 20 pin 21, and the 8th and 1st
As shown by the dotted line in Figure 0, the vibration prevention member 5 is retracted from the knitting needle 1, and the actuating member is not used during the knitting of the bag knitting section A and the knitting operation of the next loose knitting section B. 22 reciprocates between positions A and B within the elongated hole 23, and the waist member 5 is held in the retracted position.

As described above, the present invention utilizes the carriage 6 and the reciprocating rack 8 in this type of flat knitting machine to prevent vibrations by suppressing the knitting needles 1, which are completely free from the knitted fabric and are therefore prone to vibration and oscillation. Since the member 5 and its series of movement mechanisms are arranged, it is possible to stably restrain the knitting needles 1 and ensure error-free yarn feeding and knitting, making it easy to knit loops without dropped stitches or knitting defects. It can be obtained.

In addition, during other knitting operations, the loops are locked on all the knitting needles and the restrained waist needles are also stable, so it is sufficient to keep the preventing member 5 away from the knitting needle position, and as a result, the preventing member 5
In particular, by using the carriage and rack, the preventive member can be operated accurately only when necessary, and it is also advantageous that it can be easily added to a conventional flat knitting machine. be.

In addition, when carrying out the implementation, please use the pattern card 2 as shown in Figure 13.
4, it is also possible to arrange a detection member 25 such as a microswitch on the implant pin 10 side, and thereby operate the vibration prevention member 5 using a drive member 26 such as an air cylinder.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the side of the horizontally striped fabric, Fig. 2 is a side sectional view of the structure near the same knitting part, Fig. 3 is an explanatory diagram of the knitting operation, and Figs. 4 and 5 are explanatory diagrams of the arrangement of the prevention member of the present invention. FIG. 5 is an explanatory diagram of the carriage and rack, FIG. 6 is an exploded perspective view of the main parts of the prevention member movement mechanism, FIG. 7 is an overall perspective view of the embodiment of the device of the present invention, and FIG. 8.9. FIG. 10 is an explanatory diagram of the operation of the prevention member, FIG. 11 is an explanatory diagram of the operation of the knitting needle, FIG. 12 is a plan view of the tissue in the vicinity of the same knitting part, and FIG. 13 is another embodiment. A...Flat knitted fabric, a...Flat knitted fabric piece,
B...Discarded part, 5...Vibration prevention member,
15... Rotating piece, 19... Slide piece, 22... Operating piece, mouth... Set-up part,
C... Setup loop.

Claims (1)

[Scope of utility model registration request] A movement mechanism equipped with a knitting needle vibration prevention member is provided on the carriage for operating the knitting needles, and a drive member for the movement mechanism is provided on one side rack of the reciprocating rack mechanism, so that the vibration prevention member is provided so as to be able to move toward and away from the knitting needles. A knitting needle vibration prevention device characterized by: