JPS641982Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention is based on a system in which the base end is pivotally supported by the rear end of the left and right main cams arranged in a figure-eight shape on the bottom surface of the base plate, and the free end is attached to the rear guide plate. The present invention relates to an auxiliary cam switching device for a knitting machine carriage that opens and closes a butt passage between the rear end of the main knitting cam and a rear guide plate by switching left and right auxiliary cams brought into elastic contact with each other.

[Conventional technology]

This type of auxiliary cam switching device opens and closes the butt passage by switching the left and right auxiliary cams individually or together by manually operating an operating member disposed on a base plate.

[Problem that the invention attempts to solve]

Therefore, for example, when double knitting is performed using a double-plate machine, it is necessary to avoid the appearance of two rows of ground yarn and colored yarn on the back side of the knitted fabric in a striped pattern. In order to show only the threads, it is best to knit with colored threads only on the main machine, and then knit with smooth stitches on the ribbing machine. To,
It is troublesome to manually operate the above-mentioned operating member to switch between the left and right auxiliary cams of the carriage on the rib machine side, and this tends to result in erroneous operation.

The present invention automatically switches the left and right auxiliary cams, that is, opens and closes the butt passage between the rear end of the main cam and the rear guide plate, in conjunction with the movement of the carriage. This is an attempt to eliminate the above-mentioned conventional drawbacks.

[Means for solving problems]

A slider having left and right lift cams for rotationally locking left and right auxiliary cams in the raised position is mounted on a bed plate running on the needle bed, and a starting piece is removably provided on the needle bed, and The slider is provided with a passive piece that slides the slider left and right by engaging with the activation piece in connection with traveling, and the left and right lift cams are caused to simultaneously flip up the left and right auxiliary cams by the left and right sliding of the slider, or An auxiliary cam switching device for a knitting machine carriage, characterized in that the free end is returned to its original position in elastic contact with a rear guide plate.

[Function] According to the present invention, in connection with moving the bed plate (carriage) onto the needle bed, the slider is slid left and right, and the left and right lift cams are caused to flip up the auxiliary cam, or the free end is guided to the rear side. The butt passage between the rear end of the main cam and the rear guide plate can be automatically returned to its original position in elastic contact with the plate, in other words, the butt passage between the rear end of the main cam and the rear guide plate can be automatically opened and closed.

〔Example〕

A is a base plate of a carriage for a rib machine that is mounted on the needle bed b of the rib machine so as to be able to move left and right, and on the back side (lower surface) of this base plate a, a group of known cams necessary for knitting are arranged in a predetermined manner. It is equipped with.

1, 1 is the left and right formation main cam arranged in a figure eight shape,
2, 2 are left and right auxiliary cams whose base ends are pivotally supported on the rear ends of the main knitting cams 1, 1. 3,3 is auxiliary cam 2,2
An upright rod is installed on the free end side of the stand and projects through the window holes 4, 4 onto the base plate a, and 5, 5 is a tension spring stretched between the upright rods 3, 3 and the base plate a. It is.

Usually, the auxiliary cams 2, 2 are provided with tension springs 5, 5.
The free end is brought into elastic contact with the rear guide plate 6, and the butt passage 7 formed between the rear end of the main cams 1, 1 and the rear guide plate 6 is closed (the first
figure).

A slider c is mounted on a base plate a so as to be slidable left and right, and has left and right lift cams 8, 8 having inclined sides in the same direction at both ends. Numerals 9 and 9 are elongated holes provided in the slider c and fitted with guide rods 10 and 10 planted in the base plate a, and 11 is a tension spring stretched between the slider c and the base plate a. slider c
moves left and right within the length of the long holes 9, 9, but is normally in a leftward movement position where the right ends of the long holes 9, 9 are engaged with the guide rods 10, 10 by the tension spring 11 ( Figure 1). At this time, the left and right lift cams 8,
8 is placed in a retracted state in which the free end is in elastic contact with the rear guide plate 6 and is located diagonally from the left to the rear of the upright rods 3, 3 of the auxiliary cams 2, 2 which close the butt passage 7. Figure 1). However, slider c,
When the left and right lift cams 8, 8 are forced to slide to the right against the tension spring 11 with a required external force, the left and right lift cams 8, 8 engage with the upright rods 3, 3, and the tension springs 5, 5 pull the auxiliary cams 2, 2. 5, thereby opening the butt passage 7 (FIG. 2), and this state is maintained by the following stopper d.

The stopper d locks the slider c by locking the hanging pin 14 on the lower surface of the slider c with the outer hook 13' of the locking piece 13 attached to the base plate a with a shaft 12 below the slider c. It is moored in the above state, i.e. in the right movement position. The locking piece 13 is supported and biased in a predetermined manner by a coil spring 15 wound around the shaft 12 so that it can freely swing horizontally and vertically with respect to the shaft 12, and the slider c is
The tension spring 11 is pulled from the left movement position shown in the figure with the required external force.
2, the hanging pin 14 first collides with the outer peripheral surface of the outer hook portion 13' of the locking piece 13, as shown in FIG. At the same time, the locking piece 13 horizontally rotates against the coil spring 15, and when the hanging pin 14 is moved from the tip of the outer hook part 13' to the outer surface of the inner hook part 13'', the coil The biasing force of the spring 15 causes the slider c to horizontally rotate a little toward the original position, and then the external force is released and the slider c returns slightly to the left, that is, toward the original position, due to the tensile force of the tension spring 11, and as a result, the hanging pin 14 is engaged with the inner peripheral surface of the outer hook portion 13', and the tension spring 11 eventually pulls the slider c.
Moor it in the right movement position shown in Figure 2 against the

During this mooring, the auxiliary cams 2, 2 are flipped up as described above to open the butt passage 7.

The mooring of the slider c by the stopper d is performed as follows.

Even when the slider c is moored in the rightward movement position, the slider c has a margin for moving slightly to the right side by the amount of return during the mooring operation, between the left end of the elongated holes 9 and the guide rod 1.
0 and 10 (Fig. 2), and if the slider c is forcibly moved further to the right by the distance 9' and 9' with the required external force, The hanging pin 14 that was engaged with the inner peripheral surface of the outer hook portion 13' reaches the inside of the outer hook portion 13', and the locking piece 1
3 is horizontally rotated to the original position by the biasing force of the coil spring 15, so that the inner end of the diagonal tongue piece 13 of the locking piece 13 faces and matches the hanging pin 14 (FIGS. 4 and 5). Therefore, if we remove the above external force, slider c
is slid to the left by the tensile force of the tension spring 11 and returned to the original left-moving position (Fig. 1). In order to engage the piece 13, it is pushed down against the coil spring 15, and the hanging pin 14 slides on the locking piece 13 and is released from it.

As the slider c is released from the mooring by the stopper d as described above and returns to its original leftward movement position, the left and right auxiliary cams 2, 2 are raised to the above-mentioned position by the tensile force of the tension springs 5, 5. Finally, the free end comes into elastic contact with the rear guide plate 6 to close the butt passage 7.

Next, a configuration for transmitting and receiving an external force applied when sliding the slider c back and forth between the leftward movement position and the rightward movement position as described above will be described.

e is a passive piece attached to the shaft 16 on the slider c, overlapping with the auxiliary piece 17, and these two pieces 17 and e
A coupling spring 18 is installed between them, and the auxiliary piece 1
A tension spring 19 is stretched between the slider 7 and the slider c to bring the auxiliary piece 17 into elastic contact with the stop piece 20. f is a starting piece having a chevron-shaped head detachably attached to a frame 21 fixed to one side of the needle bed b.

The first slider where slider c is in its original left movement position.
When the bed plate a shown in the figure is moved to the left on the needle bed b, the passive piece e collides with the right side of the chevron-shaped head of the actuating piece f, and resists the tension spring 11 that pulls the slider c to the right movement position. In addition to sliding (this causes the left and right auxiliary cams 2, 2 to open the butt passage 7 as described above),
Stopper d locks slider c in its rightward movement position.

In the above, the passive piece e resists the coupling spring 18 while keeping the auxiliary piece 17 in elastic contact with the stop piece 20, and the first
While rotating counterclockwise in the figure, it passes over the chevron-shaped head of the activation piece f from the right side to the left side, and then returns to its original position.

When the bed plate a with the slider c moored to the right movement position is folded back to the left of the needle bed b and runs from the left to the right, the passive piece e collides with the left side of the chevron-shaped head of the actuating piece f. , at this time, the passive piece e resists the tension spring 19, rotates clockwise in FIG. There is no need to displace the slider c inside.

Next, the bed plate a with the slider c moored to the right moving position is turned back on the right side of the needle bed b, and is moved from the right to the left to move the passive piece e to the actuating piece f.
When it collides with the right side of the chevron head, slider c
moves to the right by the distance 9', 9', and when the passive piece e crosses the chevron head to the left,
The slider c returns to its original position, which is the leftward movement position, by the tensile force of the tension spring 11 (this causes the auxiliary cams 2, 2 to close the butt passage 7).

Therefore, as shown in Fig. 8, the needle bed b of a rib machine equipped with a carriage equipped with the above-mentioned bed plate a is double-branched with a double plate machine installed opposite to the needle bed g of the main machine. When knitting colored yarn for knitting, perform the required knitting on the needle bed g side of this machine, and knit on the needle bed b side of the rib machine.
On the side, the left and right auxiliary cams 2 open the butt passage 7 so that only two rows are smooth, and close the butt passage 7 so that two rows of required knitting are performed on both needle beds b and g when knitting the ground thread. 2 can be opened and closed automatically as the carriage (base plate a) travels.

1 and 2, when the slider c is in the leftward movement position, the left and right auxiliary cams 2, 2 whose free ends are in elastic contact with the rear guide plate 6 are manually operated separately. It is a manually operated member that locks the device in the flip-up position or releases the lock. It is clear that the device of the present invention can be applied not only to rubber machines but also to this machine.

[Effect of idea]

As is clear from the above, according to the device of the present invention, the switching of the left and right auxiliary cams, that is, the opening and closing of the butt passage between the rear end of the main cam and the rear guide plate, is performed in relation to the traveling of the carriage. Unlike conventional manual switching and opening/closing, there are no drawbacks such as cumbersome operation or erroneous operation. This is extremely convenient when the cam arrangement for stitching is required repeatedly.

Further, in the device of the present invention, since the actuating piece is detachable from the needle bed, it is only necessary to attach it when the slider is to be slid from side to side.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a rubber machine. Fig. 1 is a plan view of the left and right auxiliary cams with their free ends in elastic contact with the rear guide plate, and Fig. 2 is a plan view of the left and right auxiliary cams. 3 and 4 are plan views of the stopper, FIG. 5 is a sectional view of the same, and FIG. 6 is a plan view showing the engaged state of the actuating piece and the passive piece. FIG. 7 is a cross-sectional view of the main part showing the mechanism for attaching and removing the starting piece, and FIG. 8 is a plan view of a double-plate machine in which the rubber machine is installed opposite to the main machine. 1, 1... Left and right main cam, 2, 2... Left and right auxiliary cam, 6... Rear guide plate, a... Base plate, 8, 8
...Left and right lift cam, c...Slider, f...
Activating piece, e...passive piece.

Claims (1)

[Scope of utility model registration request] The left and right auxiliary cams are pivoted to the rear end of the left and right main cams arranged in a figure eight shape, and the free ends of the left and right auxiliary cams are brought into elastic contact with the rear guide plate, and the left and right auxiliary cams are rotated to the flip-up position. A slider having left and right lift cams to be engaged is mounted, and a starting piece is removably provided on the needle bed on which the bed plate runs, and engages with the starting piece in relation to the running of the bed plate. An auxiliary cam switching device for a knitting machine carriage, characterized in that the slider is provided with a passive piece that causes the left and right lift cams to simultaneously flip up the left and right auxiliary cams or return them to their original positions by sliding the slider left and right.