JPH05125644A - Knitting needle controller in transferring loop in flat knitting machine - Google Patents

Abstract

PURPOSE:To readily and surely prevent excessive lifting and lowering of a knitting needle on a receiving side in transfer by installing a surface for preventing the knitting needle on the receiving side from excessively lifting and a surface for preventing the knitting needle from excessively lowering in a dead space under a transfer raising cam. CONSTITUTION:A dead space 20 capable of passing a butt of a knitting needle is formed under a transfer raising cam 19 and a surface 26 for preventing the knitting needle from excessively lifting and a surface 27 for preventing the knitting needle from excessively lowering are installed. The surface 26 for preventing the knitting needle from excessively lifting is capable of preventing the knitting needle on the receiving side pushed up with a lifting cam surface 21 of a transfer receiving cam 22 from excessively lifting. The surface 27 is capable of preventing the knitting needle on the receiving side pushed down with a lowering cam surface 23 of the transfer raising can from excessively lowering.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knitting needle control device at the time of transferring stitches performed by using a flat knitting machine.

[0002]

2. Description of the Related Art In recent years, it has been required to make the knitting structure and pattern of a knitted fabric complicated and colorful in accordance with the diversification of fashion. In order to meet such demands, for example, a flat knitting machine in which a needle bed having a plurality of knitting needles arranged in parallel is arranged in front and back in a state where the needle bed gaps of the knitting needles are butted against each other In order to knit with the rear knitting needles or to knit a knitted fabric using both knitting needles, it is necessary to perform a so-called "transfer" in which the loop hooked on the knitting needles is transferred.

In this "transfer", a loop expanding member formed on the side surface of the knitting needle expands the loop on which the knitting needle on the delivery side is hooked by a loop expanding member, so-called "blade", and is expanded. The transfer side knitting needle is lowered while the loop is hooked on the receiving side knitting needle, the loop is cleared from the hook of the delivery side knitting needle, and transfer is performed.

By the way, when roughly divided into knitting needles in a flat knitting machine, a latch, which is pivotally supported at its base end portion, a so-called "vera", is provided at an opening portion of a hook formed at the tip of the knitting needle,
This "Bella" can be opened and closed with a latch needle that opens and closes the opening of the hook with a brush or a knitting thread that passes through it, and with a "slider" that operates the opening of the knitting needle with a cam provided on the carriage. There is a compound needle.

In a flat knitting machine equipped with a latch needle, when a stitch is transferred from the knitting needle of the rear needle bed to the knitting needle of the front needle bed while the carriage is traveling to the left, a knitting needle as a delivery side knitting needle (Tr) is used. The locus of the knitting needle with the receiving side knitting needle (Rcv) is as shown in FIG. 1, and the locus of the knitting needle between the delivering side knitting needle (Tr) and the receiving side knitting needle (Rcv) is shown in FIG. As shown in.

[0006]

However, as can be seen from FIGS. 1 and 2, whether the transfer is performed by a flat knitting machine having a latch needle or by a flat knitting machine having a compound needle. In addition, since the receiving side knitting needle is moved within a relatively short time (T1), it tends to be excessively lowered.

If the receiving side knitting needle descends excessively,
Not only is the knitting needle lowered, but the phase of the butt of the knitting needle is out of phase with the presser for operating it, which poses a problem that the knitting needle cannot be operated accurately. Such a problem causes an excessive rise even when the receiving side knitting needle is pushed up when the traveling speed of the carriage increases.

The present invention has been proposed in view of the above problems, and it is an object of the present invention to reliably prevent an excessive elevation of the receiving side knitting needle during transfer with a simple structure.

[0009]

In order to solve the above problems, a knitting needle control device at the time of transfer in a flat knitting machine of the present invention has a plurality of knitting needles arranged in a pair of front and rear needle beds. A knitting needle and / or a transfer acting on the butt of the knitting needle in a carriage that projects a bat on the upper surface of the knitting needle or a flexible jack connected to the knitting needle, and operates the bat to adjust the knitting needle Between the left and right needle raising cams that form a lock and form one knitting and / or transfer lock, a transferable or fixed transfer raising cam that acts on the butt of the knitting needle and guides the delivery side knitting needle to the stitch passing track is provided. Placed below the transfer lasing cam,
A transfer receiving cam having a raising cam surface that forms a void through which the bat can pass and that acts on the bat to guide the knitting needle to the stitch receiving track, and a transfer raising cam that faces the void. In a flat knitting machine equipped with a carriage configured to form a lowering cam surface for guiding the butt of the knitting needle to the stitch receiving track on the lower surface, the excessive knitting of the receiving side knitting needle pushed up by the raising cam surface of the transfer receiving cam A feature is that an excessive rise prevention surface to prevent it and an excess fall prevention surface to prevent excessive lowering of the receiving side knitting needle pressed by the lowering cam surface of the transfer raising cam are provided in the empty space below the transfer raising cam. It is what

Further, the excessive lowering prevention surface is formed above the transfer receiving cam, and is formed on the main plate portion of the cam in the void where the stitch receiving track on the trailing side is formed from the lowering cam surface of the transfer raising cam. is there.

Further, another feature is that an excessive lowering prevention surface is formed on the upper surface of the raising cam surface on the trailing side from the lowering cam surface of the needle raising cam formed on the shoulder portion of the transfer receiving cam.

[0012]

[Function] A needle bed, in which a plurality of knitting needles are arranged in parallel, is arranged in a front and rear pair with the needle bed gaps of the knitting needles abutting, and a loop is applied by a flat knitting machine in which a loop expanding member is formed on one side of each knitting needle. When transferring from the stopped knitting needle on the delivery side to the facing knitting needle for receiving the loop, first, the knitting needle on the delivery side having the loop hooked by the needle raising cam and the transfer raising cam of the carriage rises.

Next to the raising of the delivery side knitting needle, the receiving side knitting needle is raised by the raising surface of the transfer receiving cam, and the hook portion of the receiving side knitting needle hooks the loop of the delivery side knitting needle expanded by the loop expanding member. To do. At this time, the receiving-side knitting needle is vigorously raised by the raising cam surface and tries to rise further upward from the regular position, but this is prevented by the excessive rise preventing surface to prevent excessive rise.

After that, when the delivery side knitting needle is lowered while closing / closing the hook, the loop hooked on the delivery side knitting needle is reliably transferred to the receiving side knitting needle.
Then, when the receiving side knitting needle descends in a short time, it tries to descend to a position below the normal position due to its inertia, but the excessive descending prevention surface receives this and the excessive lowering is prevented.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment for carrying out the present invention will be described below with reference to the drawings. <Embodiment 1> The flat knitting machine used in this embodiment has a needle bed (not shown) provided with a large number of knitting needles that are moved forward and backward by a carriage with the needle bed gaps of the knitting needles abutting each other. In a flat knitting machine arranged in a "H" shape, a carriage 1 and a knitting needle 2 which is operated to move back and forth are configured as shown in FIGS. 3 and 5.

That is, the knitting needle 2 is a so-called compound needle in which a slider 3 is slidably mounted, and a knitting needle main body 5 having a hook 4 formed at its tip as shown in FIG.
A jack 6 connected to the rear end of the knitting needle body 5, and a select jack 7, a select spring 8, and a selector 9 are arranged in this order above the rear portion of the jack 6 to form the slider 3 and the jack 6. The butt 10, 11, 12, 13 projected from the upper surface of each member of the select jack 7 and the selector 9 is moved forward and backward by the corresponding cam group of the carriage 1, and the knitting needle 2 is moved forward and backward. ing.

The knitting needle 2 is provided on one side surface of the knitting needle body 5.
An expansion member 14 for expanding the loop hooked on the loop is provided. The loop expansion member 14 is formed by bending a thin metal plate into a square groove shape in plan view, It is fixed to one side surface portion of the knitting needle main body 5 and is urged so that the other end portion on the hook 4 side contacts the one side surface portion of the knitting needle main body 5.

The side surface of the knitting needle main body 5 near the hook 4 of the loop expanding member 14 is formed as an inclined surface 15, and at the tip of the hook 4 of the knitting needle 2 on the side that interferes with the loop expanding member 14 in a side view. Also has an inclined surface 16 (see FIG. 4). Both carriages 1 respectively arranged on the front and rear needle beds are connected together by a connecting rod (not shown) so as to accompany them.

As shown in FIG. 5, each of the carriages 1 and 1 is provided with a transfer lock 17 acting on the butt of the knitting needle 2 at a substantially central portion thereof. The cam 18 is formed, and the needle raising cam 18, 18 is formed.
A transfer raising cam 19 which acts on the butt 11 of the knitting needle 2 and guides the knitting needle 2 to the stitch passing path is provided between them.

A space 20 through which the butt 11 of the knitting needle 2 can pass is formed in the lower portion of the transfer lasing cam 19. The vacant space 20 acts on the butt 11 of the knitting needle 2 to receive the knitting needle with a stitch receiving trajectory. Lifting cam surface 2 to guide
1 and the transfer receiving cam 22 and the void 20.
A lowering cam surface 23 for guiding the butt 11 of the knitting needle 2 to the stitch receiving path is formed on the lower surface of the transfer lasing cam 19 facing the.

Slider guide cams 24 are provided above the needle raising cams 18 formed on the sides and below the transfer raising cams 19.

The upper half portion of the transfer receiving cam 22 is formed into a substantially trapezoidal shape, and the side surfaces of both end portions of the upper side are formed into a raising cam surface 21 for raising the knitting needle 2, and a space facing the raising cam surface 21. As shown in FIG. 6, the cam base plate 25 of 20 is provided with an excessive rise prevention surface 26 in which the corresponding portion is formed in a stepped shape. Further, above the transfer receiving cam 22, the cam base plate 25 of the space 20 on the trailing side of the transfer receiving cam 22 is provided with an excessive lowering prevention surface 27 for preventing the knitting needle 2 pushed down by the lowering cam surface 23 from excessively lowering. It is formed at a position different from the excessive rising prevention surface 26 in the traveling direction of the carriage 1.

Reference numeral 28 in the drawing is a presser disposed below the transfer receiving cam 22 that acts on the butt 12 of the select jack 7.

With the flat knitting machine constructed as described above, for example, the loop of the knitting needle 2 (delivery side knitting needle 2a) of the rear needle bed shown in FIGS. 8 to 13 is transferred to the front knitting needle 2 (delivery side knitting needle 2b). The case will be described below. Assuming that the carriage 1 travels on the needle bed from right to left, FIG.
As shown in FIG. 3, the bats 10, 11, 12 of the slider 3, the jack 6, and the select jack 7 are the carriage 1
As shown by the arrows A, B, and C, the cam group passes from left to right.

When the rear knitting needle 2a comes to the position of relative to the carriage 1, the butt 11 of the jack 6 is pushed up by the action of the needle raising cam 18, the rear knitting needle 2a rises, and the butt 10 of the slider 3 remains. As a result of the relative movement, the slider 3 gradually retracts as a relative movement, and the hook 4 opens.

At this time, the butt 12 of the select jack 7 of the knitting needle 2b at the front is sunk by the presser 28, the bats 11 and 10 of the jack 6 and the slider 3 are in the inoperative position, and the needle raising cam 18 acts. Without jumping.

When the rear knitting needle 2a reaches the position of the carriage 1, the butt 11 of the jack 6 is pushed up by the needle raising cam 18 and the butt 10 of the slider 3 is left.
The hook 4 is fully opened with the slider 3 retracted (see FIG. 8). When the rear knitting needle 2 a comes to the position of the carriage 1, the slider 3 and the jack 6 are raised by the transfer raising cam 19.

At this time, the front knitting needle 2b has one (left) raising cam surface 21 formed at both end portions of the upper side of the transfer receiving cam 22 so that the upper end of the hook 4 is located on the side surface of the knitting needle main body as shown in FIG. Overlaps the inclined part 15 part of the section,
It rises to a position where it does not interfere with the lower edge portion of the loop expanding member 14. At this time, the knitting needle 2b in front of the raising cam surface 21
Is attempted to rise further from the normal position by vigorous elevation, and the excessive rise prevention surface 26 receives this to prevent excessive rise.

When the front knitting needle 2b is raised to the normal position, the loop 30 which is about to rise as the rear knitting needle 2a advances is received by the hook 4 portion of the knitting needle 2b. When the rear knitting needle 2a reaches the position of with respect to the carriage 1, the loop 30 is expanded to a state in which the outer circumference of the loop expanding member 14 is wound, and the loop 30 is set to the regular position (see FIG. 10).

When the rear knitting needle 2a reaches the position of the carriage 1, the front knitting needle 2b rises, and as shown in FIG. 11, the side surface portion of the knitting needle main body 5 of the rear knitting needle 2a and the expanding member provided on the side surface portion. The hook 4 portion of the front knitting needle 2b is in a state of being penetrated between the hook 14 and the needle 14.

When the rear knitting needle 2a comes to the position of the carriage 1, the rear knitting needle 2a descends, and accordingly, the loop 30 is hooked on the hook 4 of the front knitting needle 2b. Then, after the slider 3 closes the hook 4 as shown in FIG. 12 while the rear knitting needle 2a moves to the position from the carriage 1, the rear knitting needle 2a is further lowered and pushed down by the cam surface 23. When the hook 4 of the rear knitting needle 2a, which is lowered and the loop 30 is closed, is cleared, the loop 30 hooked on the rear knitting needle 2a is moved to the front knitting needle 2 as shown in FIG.
Move to b.

At the position from this point onward, the receiving side knitting needle descends in a short time as indicated by reference numeral T1 in FIG. 14, so that the inertia of the receiving side knitting needle, the jack, etc., forces it to descend and goes beyond the normal descending position. Trying to
Since the excessive lowering prevention surface 24 receives this, the rear knitting needle 2a is always kept in the normal lowering position.

<Embodiment 2> The flat knitting machine used in this embodiment is a flat knitting machine formed in substantially the same manner as in the above embodiment.
The carriage 1 for advancing and retracting each knitting needle of the needle bed, particularly the transfer lock 17, is constructed as shown in FIGS. 15 and 16. That is, the transfer lock 17 is a so-called "knit run lock" having a knitting function, and is a mountain-shaped cam 29 in which the raising cam surfaces 21 are formed at both end portions of the upper side of the transfer receiving cam 22 formed in a substantially trapezoidal shape. The protruding cam surface 21.
The portion of the needle lasing cam 18 facing the upper surface of the lowering cam surface 31 also serves as the excessive rising prevention surface 26 for preventing the knitting needle 2 pushed up by the lifting cam surface from rising excessively.
And the apexes 29 on both sides of the chevron-shaped cam are made to act as the excessive descent prevention surface 27.

In this way, the transfer receiving cam 22
The raising cam surface 21 and the raising cam surface 21 on both ends of the upper side.
Excessive descent prevention surface 2 at the top 29 of the mountain-shaped cam formed with
7 is formed, the locus of the receiving side knitting needle 2b (Rc
As shown in FIG. 17, v) once rises to a position where it interferes with the loop expanding member 14 of the delivery side knitting needle 2a to securely receive the loop 30, and then descends to descend.
It avoids the interference with 4 and goes up again to receive the loop 30.

Other configurations and operations are similar to those of the first embodiment.

In each of the above-described embodiments, the case where the carriage 1 travels from right to left has been described as an example, but conversely, when the carriage 1 travels from left to right, the same operation as described above is performed. Loop 30 hooked on the knitting needle 2a at the rear
Can be transferred to the front knitting needle 2b, of course,
The loop hooked on the front knitting needle 2b is connected to the back knitting needle 2a.
It goes without saying that you can move to.

Furthermore, in the above embodiment, the knitting needle is described as a compound needle having a slider, but it goes without saying that the present invention can be applied to a latch needle.

[0038]

As described above, according to the present invention, when the receiving side knitting needle is raised by the raising cam surface, or when the transfer side knitting needle loop is transferred to the receiving side knitting needle, the receiving side knitting needle is lowered. In order to lower the knitting needle in a short time, the inertia of the receiving side may cause the receiving side knitting needle to move up and down excessively. It can be surely prevented.

As a result, it is possible to prevent the phase of the knitting needle bat and the presser for operating the same from being deviated, and it is possible to maintain accurate operation of the knitting needle and produce a high-quality knitted fabric. ..

Further, the structure for preventing the receiving side knitting needle from excessively descending is a simple structure in which the excessive descending preventing surface is formed in the carriage, and the carriage is inexpensive and can be implemented at a small size. There is also the advantage that you can.

[Brief description of drawings]

FIG. 1 is a view showing a locus of a knitting needle during transfer in a conventional latch needle flat knitting machine.

FIG. 2 is a diagram showing a locus of a knitting needle during transfer in a conventional compound needle flat knitting machine.

FIG. 3 is a side view showing the structure of a compound needle.

FIG. 4 is a partial cross-sectional view of a hook of a knitting needle during transfer.

FIG. 5 is a perspective view showing a cam group of the carriage according to the first embodiment.

6 is a sectional view taken along line XX of FIG.

FIG. 7 is an explanatory diagram of a locus when the knitting needle passes through the cam group of the carriage according to the first embodiment.

FIG. 8 is a side view showing a state of a delivery side knitting needle and a receiving side knitting needle during transfer.

FIG. 9 is a side view showing a state of a delivery side knitting needle and a receiving side knitting needle during transfer.

FIG. 10 is a side view showing a state of a delivery side knitting needle and a receiving side knitting needle at the time of transfer.

FIG. 11 is a side view showing a state of a delivery side knitting needle and a receiving side knitting needle during transfer.

FIG. 12 is a side view showing a state of a delivery side knitting needle and a receiving side knitting needle during transfer.

FIG. 13 is a side view showing a state of a delivery side knitting needle and a receiving side knitting needle during transfer.

FIG. 14 is a diagram showing a locus of a knitting needle at the time of transfer of the present invention according to the first embodiment.

FIG. 15 is a perspective view showing a cam group of the carriage according to the second embodiment.

16 is a sectional view taken along line YY of FIG.

FIG. 17 is a diagram showing a locus of a knitting needle during transfer of the present invention according to a second embodiment.

[Explanation of symbols]

1 ... Carriage 2 ... Knitting needle (2a ... Rear knitting needle, 2b ... Front knitting needle) 11 ... Butt 18 ... Needle raising cam 19 ... Transfer raising cam cam 21 ... Lifting cam surface 22 ... Transfer receiving cam 23 ... Lowering cam surface 25 ... Cam base plate 26 ... Excessive rise prevention surface 27 ... Excessive fall prevention surface

Claims (3)

[Claims] 1. A plurality of knitting needles are arranged on a pair of front and rear needle beds, a butt is projected on the upper surface of the knitting needle or a flexible jack connected to the knitting needle, and the bat is operated. A knitting needle and / or transfer lock acting on the butt of the knitting needle is provided on the carriage for adjusting the knitting needle to move back and forth, and a knitting needle butt is formed between the left and right needle raising cams forming one knitting and / or transfer lock. Arranging a retractable or fixed transfer raising cam that acts to guide the delivery side knitting needle to the stitch passing track, forms a void through which the bat can pass, in the lower portion of the transfer raising cam, and in the void,
A transfer receiving cam having a raising cam surface that acts on the bat to guide the knitting needle to the stitch receiving trajectory, and a lowering cam surface that guides the butt of the knitting needle to the stitch receiving trajectory on the lower surface of the transfer raising cam facing the void. In a flat knitting machine equipped with a carriage configured by forming a ridge, an excessive rise prevention surface that prevents an excessive rise of the receiving side knitting needle pushed up by the raising cam surface of the transfer receiving cam and a lowering cam surface of the transfer raising cam. A knitting needle control device at the time of transfer in a flat knitting machine, characterized in that an excessive lowering prevention surface for preventing excessive depression of the knitting needle on the receiving side that has been pushed down is provided in a space below the transfer raising cam. 2. An excessive lowering prevention surface is formed above the transfer receiving cam, and is formed on a bottom plate portion of the empty cam where a stitch receiving track on the trailing side is formed from the lowering cam surface of the transfer raising cam. The knitting needle control device at the time of transfer in the flat knitting machine according to claim 1. 3. The excessive lowering prevention surface is formed on the upper surface portion of the raising cam surface which is the trailing side from the lowering cam surface of the needle raising cam formed on the shoulder portion of the transfer receiving cam. A knitting needle control device at the time of transfer in the described flat knitting machine.