JPS5922145Y2 - Carriage for two-color simultaneous knitting on hand knitting machine - Google Patents

Description

[Detailed description of the invention] The present invention involves separately supplying different knitting yarns from the front and rear yarn openings at the center of the carriage to each of the front and rear knitting needles that are in the state of being pulled out. This invention relates to a carriage for two-color simultaneous knitting of a hand knitting machine, which is guided to the same knitting cam located on the rear side in the carriage movement direction to perform two-color simultaneous knitting.

The conventional knitting principle for obtaining a pattern by simultaneously knitting two colors of knitting yarns on a hand knitting machine will be explained with reference to FIG.

That is, in FIG. 1, 2 is a carriage, 2 is a main knitting cam, 3 is a central partition, 4 is a tuck cam, and 5 is an auxiliary mesh cam.

Further, 6 is a front yarn opening, and 7 is a rear yarn opening, which are used to supply front knitting yarn 8 and rear knitting yarn 9 of different colors to each knitting needle.

Now, in the above, the knitting needles are used depending on the pattern to be knitted.
The respective bats advance through the front knitting path 10 and the rear knitting path 11 with the carriage 1 laterally moving in a properly distributed state.

The locus of each bat at this time is as shown by 12.13, and the auxiliary net cam 5 has been previously switched from the position shown by the two-dot chain line to the position shown by the solid line by the operator's operation.

Therefore, the bat can be inserted into the front formation passage 10 and the rear formation passage 11.
By passing through the knitting needles, each knitting needle is divided into front knitting needles and back knitting needles, with the forward side facing the worker being the front knitting needle, and the hook tip trajectory of the front knitting needle is shown as 14 in the figure, and the hook tip trajectory of the back knitting needle is shown as 15 in the figure. It will look like a dashed line.

Note that 16 is a sinker line.

Then, in the process of the carriage 1 moving in the direction of arrow 17, the front knitting yarn 8 and the rear knitting yarn are attached to the upper surfaces of the front knitting needles and the rear knitting needles at the position where the knitting needles pass through the front yarn opening 6 and the rear yarn lower of the intermediate shaft of the carriage 1, respectively. Immediately after this, near the illustrated line 18, the front knitting yarn 8 is located between the open bell of the front knitting needle and the hook, and the front knitting needle is pulled in at the knitting position P. Sometimes, the back knitting yarn 9 is in a state where it can be caught in the hook, and the rear knitting yarn 9 is positioned at the stem behind the open bellows with respect to the front knitting needles, and the position between the hook and the open bellows with respect to the back knitting needles. Therefore, when the rear knitting needles are pulled in at the knitting position P, the rear knitting yarn 9
Only the front knitting yarn 8 is caught in its hook, and the front knitting yarn 8 is now able to slip down.

However, since the front knitting yarn 8 and the back knitting yarn 9 are stretched from the front yarn opening 6 and the rear yarn lower to the knitting position P, respectively, as shown in the figure, so as to be gradually inclined backward, if the hook tip of the rear knitting needle As shown in the horizontal portion 158 of the locus 15, when the front knitting yarn moves sideways without retreating, the front knitting yarn 8 is finally located between the hook of the rear knitting needle and the bellows, and this front knitting yarn 8 will also be caught in the hook together with the rear knitting yarn 9.

In order to prevent this, conventionally, an auxiliary line cam 5 is provided, and this is switched in advance as shown by the solid line in the figure, so that the rear knitting needle is moved from the vicinity shown by the straight line 18 to the part 15b of the trajectory 16 by the auxiliary line cam 5. By gradually retracting the hook so that the hook is always positioned behind the front knitting yarn 8, the front knitting yarn 8 is prevented from being grabbed.

By the way, according to the above-mentioned conventional method, since the auxiliary line cam 5 is required, the sideways are complicated and the switching operation is required due to the necessity of the switching mechanism, and the operation is troublesome. Then, the movement of the knitting needles differs from that of the rubber knitting carriage by the amount of retraction of the knitting needles by the auxiliary line cam 5, which causes irregularities in the rubber stitches.Furthermore, if the moving speed of the carriage is fast, the knitting needles move along the auxiliary line cam 5. When being drawn in, the inertia may cause the stitches to be drawn in more than necessary, resulting in irregular stitches, and this also has the disadvantage that great care must be taken in the placement position of the auxiliary line cam 5.

The present invention was made to eliminate the above-mentioned drawbacks, and its purpose is to eliminate the need for an auxiliary line cam, etc. that retracts the rear knitting needles when knitting two-color simultaneous knitting. With this precept, there is no need to perform a switching operation, making the operation easy, making the groove path easier, and making it possible to ensure yarn feeding during flat knitting.Furthermore, it is possible to obtain uniform rubber stitches, etc. To provide a carriage for two-color simultaneous knitting wire for a hand knitting machine.

The present invention will be explained in detail below with reference to an embodiment shown in FIGS. 2 to 4.

In the figure, reference numeral 20 denotes a carriage base plate of the carriage 19. Front and rear sliding legs 21 and 22 are fixed to the lower surface of the carriage base plate. A rear knitting path A-C that guides the butt of the knitting needle A (located at the rear of Cams are arranged.

That is, the cams are arranged symmetrically with respect to the center of the carriage, and 23 is the front body needle passage forming plate;
4 is the rear body needle passage forming plate, 25 is the image forming plate 23.2
A pair of organizing main cams arranged in an abbreviated shape between 4 and 4, 26
27.28 is the auxiliary raising cam supported on the rear end of the main cam 25 so as to be able to flip up; 27.28 is the image forming plate 23.24;
There are central and intermediate partition walls disposed in front and back between the two main cams 25.

A pair of tuck cams 2 are provided at both ends of the middle partition wall 28 to open and close the unorganized passage D=E just before the rear body needle passage forming plate 24, respectively, and to form a tuck passage FG when closed.
There are 9.

A pair of side partition walls 30 are provided in front of the main knitting cam 25 to form a butt passage behind the front body needle passage forming plate 23.

An auxiliary retraction cam 31 and a movable retraction cam 32 are rotatably supported at the inner ends of the side partitions 30 from the inner side thereof around a common shaft 33.

A coil spring (not shown) is provided on the shaft 33,
This coil spring keeps the auxiliary retraction cam 31 in elastic contact with the front body needle passage forming plate 23 at all times, and the tip of the movable retraction cam 32 is always connected to the main knitting cam 25.
It is held in a position where it is in elastic contact with the front end of the

The auxiliary retraction cam 31 is pushed open by the butt of a knitting needle advancing from the outside in the rose I/passage in front of the side partition wall 30, and also retracts the butt of a knitting needle entering from the opposite side to move the movable retraction cam 32. lead to.

Further, the movable retraction cam 32 is rotated by the butt of a knitting needle that advances from the outside in the butt passage in front of the main knitting cam 25, and moves the butt of the knitting needle to the center and intermediate partition walls.
At the same time, the butts of the knitting needles retracted by the auxiliary retracting cam 31 are guided to the inner surface of the main knitting cam 25.

34 is an opening/closing cam for opening and closing the butt passage between the side bulkhead 30 and the front body needle passage forming plate 23; 35 is an opening/closing cam for opening and closing the front knitting passage on both left and right sides of the front body needle passage forming plate 23; This is a pull-up cam for

36, 37, and 38 are handling cams.

Now, 39 is a needle-top valve body which is arranged and fixed so as to pass through the central and one-side spacing walls 27 and 28 and extend to the left and right by the same dimension,
The portion located between the opposing central and intermediate partition walls 27 and 28 forms four notched portions 40, and this recessed portion 40
A pair of push-down cam portions 41 that protrude downward are formed on the left and right portions of the push-down cam portions 41, and a blocking wall 42 that is higher than both push-down cam portions 41 is formed on the rear side of the carriage 19 of both push-down cam portions 41. is forming.

A butt passage 43 is formed between each end of the two cylinder stop walls 42 and the left and right ends of the middle partition wall 28 facing each other.

The structure of the lower surface of the carriage base plate 20 is as described above.

Next, reference numeral 44 denotes a silk presser arm, which is attached to the front edge of the carriage base plate 20 so as to protrude forward, and a magnet 45 for opening the bellows is fixed to the lower surface of the arm.

Reference numeral 46 denotes a yarn opening forming plate provided at the center of the lower surface of the knitted fabric presser arm 44, which forms a front yarn opening 47 and a rear yarn opening 48, respectively, as shown in FIG.

These two thread openings 47, 48 are located one behind the other in the center of the carriage 19.

Reference numeral 49 denotes a needle bed, which has comb teeth 50 on its front surface and groove plates 51 on its upper surface.

Reference numerals 52 and 53 denote front and rear support plates in which vertically elongated needle insertion grooves 54 and 55 are formed, respectively, and are attached to the front and rear of the needle bed 49 with a gap between them.

Reference numeral 56 denotes knitting needles having rosettes 1 to 57 in the middle, and with the butts 57 inserted into the needle grooves of the groove plate 51, the needles 56 are bridged over the respective needle insertion grooves 54 and 55 of the front and rear support plates 52 and 53, respectively.

The front sliding leg 21 of the carriage 19 is connected to the groove plate 5.
is slidably engaged with the front edge of 1 without floating;
Further, the rear sliding leg 22 is slidably fitted into a rail 58 formed on the rear support plate 53.

In the knitting needle 56, 59 is a bellow, 60 is a hook, 61 is a leaf spring for pushing up the knitting needle 56, and 52a is a fulcrum tensioned along the lower part of the front needle insertion groove 54. It is a steel wire that exhibits

Next, to explain the operation of the above configuration, in FIG.
2 is a front knitting yarn fed from the front yarn opening 47, and 63 is a rear knitting yarn fed from the rear yarn opening 48, which has a different color from the front knitting yarn 62.

64 is the locus of the tip of the hook 60 of the front knitting needle 56a when the bat 57 passes through the front knitting path B-C; 65
is the locus of the tip of the hook 60 of the rear knitting needle 56b when the batt 57 passes through the rear knitting path A-C.

In two-color simultaneous knitting, the knitting needles 56 are distributed to the front and rear knitting needles 563 and 56b at an appropriate ratio, and the respective butts 57 are moved in the direction of the arrow 66 of the carriage 19 to separate the front and rear knitting paths B-C and A. -C, and in this process two-color simultaneous knitting is performed.

First, to describe the knitting operation by the rear knitting needles 56b, the locus of the tip of the hook 60 in this case is as shown by the chain double-dashed line 65, and the knitting operation by the rear knitting needles 56.b. The butt 57 is the rear formation path A.
-C is retreated by the left side surface of the central partition wall 27 in FIG. As shown in FIG. 40, the butt 57 is attached so that the tip of the hook 60 is attached to the front knitting yarn 62 as shown in FIG.
Before reaching the point of contact, the needle upper valve body 39 is pressed downward as shown in FIG. 4 by the push-down cam portion 41 on the right side, that is, the rear side in FIG.

As a result, the rear knitting needle 56 has a steel wire 52 at the b end and a steel wire 5 at the a end.
It is lifted upward centering around 2a and reaches a position above the front knitting yarn 62.

If this state is not maintained, the rose I.57 will further push down the cam portion 4
1, at a position where it can come into contact with the main knitting cam 25 on the rear side (right side in FIG. 2) away from the push-down cam part 41,
The back knitting needle 56 b returns to the horizontal position, and in this position the front knitting yarn 62 is located directly below the back knitting needle 56 b, so that the back knitting needle 56 b carries only the back knitting yarn 63 to its hook 60.
In the vicinity of the 12 knitting positions, the main knitting cam 25 on the right side of FIG.

Next, the tip of the hook 60 of the front knitting needle 568 is connected to the butt 57 of the front knitting needle 568.
When passing through the front knitting path B-C, the front knitting yarn 62 follows the trajectory shown by the two-dot chain line 64, so immediately after passing through the front yarn opening 47, the front knitting yarn 62 moves toward the front knitting needle 56 as shown in FIG.
It is positioned on the upper surface between the hook 60 and the bellows 59 of a and is in a state where it can be grabbed by the hook 60, but the rear knitting yarn 63 is opened by the front knitting needle 561 (under the action of the magnet 45). Since it is located on the upper surface of the stem behind the flat position, it slides down from the front knitting needle 56a when the front knitting needle 56a is pulled in by the knitting main cam 25 near the 12 knitting positions.

As described above, two-color simultaneous knitting operation can be performed without any trouble.

Therefore, according to the above device according to the present invention as described in detail,
In two-color simultaneous knitting, there is no need to provide the conventional auxiliary line cam 5 as a means for supplying each knitting yarn, so the cam can be switched between two-color simultaneous knitting and normal knitting. No operation is required, which simplifies the knitting work and, of course, simplifies the construction of the entire carriage.

On the other hand, in the knitting operation, when the rear knitting needles are retracted by the auxiliary line cam 5 as in the past, the amount of retraction becomes large due to inertia, but in the present invention, the rear knitting needles 56b are not retracted in advance, so the amount of retraction increases due to inertia. The amount of retraction does not change, so there is no need to worry about the position of the auxiliary line cam 5 when installing it, unlike in the conventional case.

In addition, since the rear knitting needles 56 b move straight across without retreating, the hook 60 and the rear knitting yarn 63 are connected even in plain knitting.
The relative position of the yarn is maintained well, and in this respect yarn feeding is further ensured.

Furthermore, since the auxiliary line cam that supplies only one knitting yarn to each knitting needle 56 as in the conventional case is not provided, the butt 57 is inserted between the center and the center spacer walls 27 and 28 into the knitting main cam 25.
Since the knitting needles are traversed in a straight line toward the rubber knitting without any backward movement, the knitting needles can be guided in the same manner as a rubber knitting carriage in rubber knitting, etc., and thereby the rubber stitches will not be uneven. It is possible to obtain uniform rubber stitches.

In addition, when performing tuck knitting, the tuck cam 29 is
If the switch is switched as shown by the two-dot chain line in the figure to close the non-woven passage D-E, and at the same time the auxiliary raising cam 26 is switched as shown by the two-dot chain line, the tack passage FG becomes effective and the butt 57 is moved to the carriage. When moving 19 in the opposite direction to arrow 66,
After being pulled up by the tack cam 29, the needle upper body 39
It reaches the recess 40 through the butt passage 43, and is guided from there to pass through the push-down cam part 41 on the left side in FIG. 2 and reach the knitting main cam on the left side.

Furthermore, when performing flat knitting with the above device, it can be done by passing the butts 57 of all the knitting needles 56 through the rear knitting path A-C. 56 is pressed against the blocking wall 42 by the inclined surface in the longitudinal direction of its lower surface when passing through one of the push-down cam parts 41 of the needle upper body 39, so that it does not move significantly in the longitudinal direction. Yarn feeding becomes more reliable than before.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and in particular, the different body on the needle is not limited to a cam as shown in the figure, but may be any other body as long as it has the function of lifting the tip of the rear knitting needle during the movement of the carriage. good.

As described above, according to the present invention, there is no need for an auxiliary line cam for retracting the rear knitting needles during two-color simultaneous knitting, and therefore there is no need to switch between two-color simultaneous knitting and normal knitting. This simplifies the knitting work, simplifies the structure of the entire carriage, and ensures yarn feeding during flat knitting.Furthermore, when used for rubber knitting, uneven rubber stitches can be obtained. It is possible to provide a carriage for two-color simultaneous knitting for a hand knitting machine that is highly effective in terms of reliability.

[Brief explanation of the drawing]

Figure 1 is a bottom view showing the components of a conventional knitting cage for two-color simultaneous knitting, and Figures 2 to 4 show an embodiment of the present invention. A bottom view of the knitting carriage, FIG. 3 is a vertical sectional view taken along line III--III in FIG. 2, and FIG. 4 is a vertical sectional view taken along line IVIV in FIG. 2 together with the needle bed. In the figure, 19 is a carriage, 20 is a carriage base plate, 21 is a front sliding leg, 22 is a rear sliding leg, 25 is a knitting main cam, and 26
2 is an auxiliary raising cam, 27 is a central partition wall, 28 is an intermediate partition wall, 2
9 is a tuck cam, 31 is an auxiliary retraction cam, 32 is a movable retraction cam, 34 is an opening/closing cam, 35 is a lifting cam, 36 to 3
8 is a handling cam, 39 is a needle upper body, 40 is a concave portion, 41 is a push-down cam portion, 42 is a blocking wall, 43 is a rose 1 to a passage, 44 is a knitted fabric presser arm, 45 is a magnet, 47 is a front thread opening, 48
49 is the needle bed, 50 is the comb tooth, 51 is the groove plate, 5
2a is steel wire, 56a is front knitting needle. 56 b is the back knitting needle, 57 is the butt, 59 is the bellows, 60
61 is a hook, 62 is a front knitting yarn, and 63 is a back knitting yarn.

Claims (1)

[Scope of utility model registration request] At the center position of the carriage, different knitting yarns 62 and 63 are separately supplied to the front and rear knitting needles 56a and 56b from the front and rear yarn openings 47 and 48 at the center of the carriage, and then both of the knitting needles 56a and 56b are pulled out. 56b is guided to the same knitting cam 25 located on the rear side in the direction of movement of the carriage to perform two-color simultaneous knitting. 5
6 b is provided with a butt passage that guides the bat 57 from the central position of the carriage in a direction substantially parallel to the carriage movement direction without moving it back and forth and moves laterally toward the knitting cam 25, and a hook at the tip of the rear knitting needle 56 b. The butt 5 of the rear knitting needle 56b is placed on the lower surface of the carriage near the position where the part 60 contacts the fed knitting yarn 62 from the front yarn opening 47.
7 a push-down cam that engages with the upper end and presses the butt 57 downward to lift the tip hook portion 60 of the rear knitting needle 56b so that the tip hook 60 moves laterally over the front knitting yarn 62; A carriage for two-color simultaneous knitting of a hand knitting machine, characterized in that it is provided with a needle upper body 39 having a section 41 formed thereon.