JPH0332548Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention has a carriage that is slidably mounted on the needle bed, and is equipped with opposed needles that are capable of knitting stitches that are the reverse of the stitches knitted by the knitting needles of the needle bed. and a thread that moves laterally in the left and right direction above the hook of the opposing needle during knitting;
The present invention relates to a yarn feeding device for a knitting machine, which includes a latch presser plate for maintaining the latch of the opposing needle in an open state when feeding knitting yarn to the hook of the opposing needle.

[Prior Art] Conventionally, as this type of yarn feeding device, for example, similar to the one shown in Japanese Patent Application Laid-Open No. 58-120847, there is a device that can replace the knitting yarn at the yarn opening without cutting it. Some have thread insertion/removal grooves that are open to the outside in the thread opening and latch presser plate.

[Problems to be solved by the invention] However, according to this invention, in particular, the groove widths of the lower edge of the thread insertion/removal groove of the thread opening and the thread insertion/removal groove of the latch presser plate are set arbitrarily. In particular, if the width of the groove is equal to or larger than the width of the latch tip of the opposing needle, the latch tip may be attached to the lower edge of the thread insertion/removal groove when the thread opening and latch presser plate move laterally. The latch, thread opening, latch presser plate, etc. may be damaged due to this. In order to prevent this accident, it is necessary to configure the yarn feeding device by precisely setting the advancing position of the opposing needle and the height of the yarn opening so that the tip of the latch does not interfere with the yarn opening. There was a drawback that led to high prices.

[Purpose of the invention] However, in the present invention, when the yarn opening and the latch presser plate are laterally moved to supply the knitting yarn into the hook of the opposing needle, the tip of the latch is in contact with the yarn insertion groove and the latch of the yarn opening. The thread feed function is always performed smoothly and reliably by preventing the thread from getting caught in the thread introduction groove of the presser plate, and it is also a low-quality thread that does not require much dimensional accuracy regarding the arrangement and positional relationship between the facing needle and the thread opening. The present invention aims to provide a yarn feeding device that can be manufactured at low cost.

[Means for Solving the Problems] In order to achieve the above-mentioned objects, the present invention particularly has the following features:
The thread opening is provided with a vertically elongated thread insertion groove that opens at the front and allows the knitting yarn to be replaced without cutting it, and the latch presser plate is provided with a longitudinal thread insertion groove that is connected to the thread insertion groove and extends linearly in the front-rear direction. A thread introduction groove opened to the front outside is provided, and the groove width dimension of the thread introduction groove and the groove width dimension of the lower part of the thread insertion groove are respectively defined as the width in the left-right direction of the tip of the latch of the opposing needle. It is characterized by being set smaller than the dimensions.

[Function] According to the above means, when knitting yarn is supplied to the hook of the opposed needle, the latch presser plate is placed in the working position and moved along with the yarn head in the left-right direction above the hook of the opposed needle. The yarn opening supplies the knitting yarn to the hook of the opposing needle, and the latch presser plate presses the tip of the open latch of the opposing needle from above to maintain the open state. So, at this time,
The thread introduction groove of the latch press plate and the thread insertion groove of the thread opening cross the tip of the opening latch, and the groove width of each groove is set smaller than the width of the tip of the latch. Therefore, there is no possibility that the tip of the latch gets caught in each groove, and the yarn feeding operation is performed extremely smoothly and reliably.

[Example] Hereinafter, an example embodying the present invention will be described in detail with reference to the accompanying drawings.

In the figure, 1 is a needle bed, on the front edge of which a large number of comb teeth 2 are arranged at equal intervals, and between each of the comb teeth, knitting needles 3 are arranged so as to be movable back and forth.

In the figure, reference numeral 4 denotes a carriage that can advance forward to the pitch where the knitting needles are arranged on the needle bed 1, and has a butt guide passage 5 on the lower surface that guides the butts of the knitting needles 3 on the needle bed 1 to the knockover position. , a needle operating body 6 that moves the butt of one knitting needle 3 back and forth between the knock-over position and the flat-out position at the left and right center portions;
and is provided.

Further, on the front side of the carriage 4, there is provided an opposing needle 7 whose hook portion faces the hook portion of the knitting needle 3 and is capable of knitting a front stitch whose structure is opposite to that of the back stitch knitted by the knitting needle 3. The opposing needle 7 is movable in the front-rear direction and the up-down direction, and is also rotatable within a small angular range (approximately 60 degrees), and has a drive mechanism (not shown) at its front base for imparting each of the above-mentioned movements. A handle 8 connected to the handle 8) is fixed.

9 in the figure is a substantially cylindrical thread opening provided in the front part of the carriage above the opposed needle 7;
- Similar to the one shown in Publication No. 120847, a lateral movement member (not shown) for driving this in the left and right direction is connected through the intermediate part, and can be integrally moved in the left and right direction together with the lateral movement member (not shown). and is connected to a member (not shown) that drives in the vertical direction, thereby making it possible to move the knitting needle array left and right by approximately three pitches, and to move between the high position and the high position shown in FIG. 5a. It is possible to move up and down between the low position shown in FIG. 4b and FIG. 7b. The front part of the lower surface of the thread opening 9 has an inclined surface 10 cut out diagonally forward and upward.
is formed, and a slit-like thread insertion groove 11 that opens forward over the entire length in the vertical direction is formed, and the width h of the lower side portion 11A is smaller than the width dimension H of the tip of the latch 7A of the opposing needle 7. is also set small.

In the figure, reference numeral 12 denotes a flat latch presser plate fitted to the yarn opening 9. When the knitting yarn T is fed to the hook of the opposite needle 7 by the yarn opening 9, the latch 7A of the opposite needle 7 is opened. Press the tip to maintain its open state. The latch plate 12 is shown in Fig. 5b.
a lower operative position in which the latch 7A remains open, as shown in Figures 4b, 6b and 7b; As shown in the above-mentioned Japanese Patent Application Laid-Open No. 58-120847, an elevating drive member (not shown) for moving and arranging it to each of the working and non-working positions is provided. They are connected together, and are movable in the left-right direction together with the thread tip 9 by the lateral movement member. In addition, a lower part 11A of the thread insertion groove 11 of the thread port 9 is provided in a portion of the latch presser plate 12 corresponding to the front of the thread port 9.
A thread introduction groove 1 that communicates with and has a width h equal to that width h.
3 is linearly extended in the front-rear direction and opened to the front outside, and a guide edge 14 is formed on the opening side of the guide edge 14, which is inclined in a substantially figure-8 shape.

In the figure, reference numeral 15 denotes a substantially gutter-shaped needle guide member provided on the lower side of the front part of the carriage, which guides the insertion of the opposing needle 7 and one knitting needle 3 in a state where they are lined up from side to side. A pair of left and right sinkers 16 are formed. Reference numeral 17 denotes a fabric presser brush fixed to the lower surface of the needle guide member 15. The needle guide member 15 and the knitting fabric presser brush 17 are integrally movable in the front-rear direction. Reference numeral 18 denotes a latch opening brush that maintains the latches of the knitting needles 3 and opposing needles 7 in an open state.

This embodiment is configured as described above.

In this embodiment, both the back stitch knitting using the knitting needles 3 and the front stitch knitting using the opposing needles 7 can be carried out for the first stitch.
Since it is implemented in exactly the same manner as that shown in Publication No. 120847, a detailed explanation thereof will be omitted, but an outline of the method of organizing the table will be particularly explained below.

That is, the butt of one knitting needle 3 is made to correspond to the needle actuating body 6, the carriage 4 is fixedly arranged here, and the knitting needle 3 is first moved from the state shown in FIGS. 4a and 4b to the needle actuating body 6. After the old stitch K has been removed, the opposing needle 7 is rotated and slightly raised to move its hook to the knitting needle 3.
In this state, connect both knitting needles 3 and 7 to the hook of
By integrally retreating, the old stitch K
The hook is knocked over from the knitting needle 3 and transferred to the opposing needle 7, and at the same time, the hook is removed from the opposing needle 7, and the hooks of both the knitting needles 3 and 7 are uncoupled. Then, the counter needle 7 is returned forward to the position shown in FIG.
2 keeps the latch of the opposing needle 7 in an open state, and in this state, by moving the thread opening 9 and the latch presser plate 12 laterally on the opposing needle 7, the knitting yarn T is transferred from the thread opening 9 to the hook of the opposing needle 7. feed on top. Then, as shown in FIGS. 6a and 6b, by moving the opposing needles 7 forward, the old stitch K is knocked over and a new front stitch K1 is knitted using the knitting yarn T. After that, in the same way as above, by joining the hooks of both knitting needles 3 and 7 behind the comb teeth 2 and moving both knitting needles 3 and 7 forward as one, the front stitch K1 is separated from the opposing needle 7. Move to knitting needle 3 and untie the hooks of both knitting needles 3 and 7. Thus, by changing the state shown in Fig. 7a and b, the table K1
One formation operation is completed.

In the knitting process for the above surface stitch K1, especially when the yarn opening 9 and the latch presser plate 12 are laterally moved above the hook of the facing needle 7, the lower part 11A of the yarn insertion groove 11 and the yarn introduction The groove 13 crosses the opening latch 7A of the opposing needle 7, and since the groove width h of each groove 11A, 13 is smaller than the width H of the tip of the latch 7A, the tip of the latch 7A crosses the opening latch 7A. There is no possibility that the yarn gets caught in the grooves 11A, 13, and therefore, the yarn feeding operation can be carried out smoothly and reliably. Moreover, since the front lower surface of the yarn opening 9 is cut off by the inclined surface 10, the yarn opening 9 may be placed at a slightly lower position due to assembly errors, or the position of the facing needle 7 may be incorrect during yarn feeding. The opposing needle 7 may be slightly shifted backward (needle bed 1 side) from the position shown in FIG.
The tip of the latch 7A is connected to the inclined surface 10 of the thread opening 9.
When the latch 7A is engaged with the latch 7A, the action of the inclined surface 10 forces the latch 7A forward.
The tip of the latch 7A is the thread insertion groove 11 of the thread opening 9.
It will not get caught on the lower side part 11A. Therefore, the lower surface of the yarn opening 9 can be placed at a lower position closer to the opposing needle 7, thereby making it possible to extremely ensure the yarn feeding action.

In addition, when replacing the knitting yarn T with respect to the thread opening 9, the thread introduction groove 13 of the latch presser plate 12 and the thread opening 9
This can be easily carried out through the thread insertion groove 11 of. In this case, since there is a roughly eight-shaped guide edge 14 at the entrance of the yarn introducing groove 13, no matter where the knitting yarn T is inserted from any position within the width of this guide edge 14, the yarn exit can be inserted in an instant. It can be inserted into 9.

[Effects of the invention] As detailed above, the present invention is intended for knitting in which the carriage 4 is provided with the opposed needles 7, the movable thread opening 9, and the latch presser plate 12, and particularly,
A vertically elongated yarn insertion groove 11 is provided in the latch press plate 12 to allow the knitting yarn T to be replaced without cutting it, and the yarn insertion groove 11 is opened in the front.
A thread introduction groove 13 is provided which communicates with the thread introduction groove 13 and is linearly extended in the front-rear direction and opened to the front outside. h and the opposing needle 7, respectively.
This is set smaller than the horizontal width H of the tip of the latch 7A.

Therefore, when the latch presser plate 12 and thread opening 9 placed in the working position on the opposing needle 7 are moved laterally in order to feed the knitting yarn T into the hook of the opposing needle 7, the tip of the latch 7A of the opposing needle 7 is moved laterally. passes through the thread insertion groove 11 and the thread introduction groove 13 smoothly without being caught,
The yarn feeding action can always be carried out smoothly and reliably without damaging the latch 7A, latch presser plate 12, etc. Furthermore, even if the positional relationship between the thread port 9 and the opposing needle 7 is slightly deviated in the vertical or front-back direction due to an assembly error, and the tip of the latch 7A of the opposing needle 7 interferes with the front lower edge of the thread port 9, the above-mentioned Since the yarn does not get caught in the lower side of the narrow thread insertion groove 11, it does not require much dimensional accuracy in the arrangement and positional relationship between the facing needle 7 and the thread opening 9.
The yarn feeding device can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a bottom view of the carriage with some parts omitted, Fig. 2 is an enlarged front view of the thread opening and latch presser plate, Fig. 3 is an enlarged top view of the thread opening and latch presser plate, and Figs. 4 a and b. 7a to 7b are action explanatory diagrams. In the figure, 1 is the needle bed, 3 is the knitting needle, 4 is the carriage, and 7
7A is a latch, 9 is a thread opening, 11 is a thread insertion groove, 12 is a latch presser plate, 13 is a thread introduction groove, T
is a knitting yarn, h is a groove width dimension, and H is a width dimension.

Claims (1)

[Scope of Claim for Utility Model Registration] A carriage 4 is slidably mounted on a needle bed 1 in which a large number of knitting needles 3 are individually arranged in a row so as to be movable back and forth, and a hook portion thereof faces the hook portion of the knitting needles 3. The opposing needles 7 are capable of knitting the opposite stitches to the stitches knitted by the knitting needles 3 by moving in the front-back direction, and the opposing needles 7 are capable of knitting stitches that are the reverse side of the stitches knitted by the knitting needles 3. a vertically long cylindrical yarn opening 9 for supplying knitting yarn T to the hook;
The latch 7A is fitted into the thread port 9 in a substantially horizontal state so as to be movable in the left and right direction integrally with the thread port 9, and the open state of the latch 7A of the opposing needle 7 is maintained by pressing the tip of the open latch 7A. A flat latch presser plate 12 is provided which is movable between an active position where the latch 7A acts on the tip of the latch 7A and an upper non-active position where the latch 7A does not act on the tip of the latch 7A. In a knitting machine in which the latch presser plate 12 is placed in the working position so as to move in the left-right direction above the hook of the opposing needle 7 together with the yarn opening 9, the knitting yarn T can be replaced at the yarn opening 9 without being cut. In addition, a vertically elongated thread insertion groove 11 is provided that opens forward and is provided in the latch presser plate 12, and a thread that communicates with the thread insertion groove 11, extends linearly in the front-rear direction, and opens outward in the front. An introduction groove 13 is provided, and the groove width h of the thread introduction groove 13 and the groove width h of the lower part of the thread insertion groove 11 are defined as the width in the left-right direction of the tip of the latch 7A of the opposing needle 7, respectively. A yarn feeding device for a knitting machine, characterized in that it is set smaller than a dimension H.