JPS63117875A - Bobbin supporting device for wire twisting machine - Google Patents

Abstract

PURPOSE:To facilitate the installation and removal of a bobbin and a flier by providing a bobbin stopper and a flier stopper on a supporting shaft having a bobbin installing part on its base end side while having a flier installing part on its tip end side, and interlocking both stoppers. CONSTITUTION:When a bobbin 19 is emptied by drawing out an element wire, a screw rod 33 is rotated to retract a bobbin stopper 27 and a flier stopper 29, thereby, removing a flier 21 and a bobbin 19. After that, the screw rod 33 is reversed and, after the bobbing stopper 27 and the flier stopper 29 are projected out, a fully wound bobbin and a flier 21 are installed. Since the outer end face of the bobbin stopper 27 is formed to be continued to the taper face 23 of a supporting shaft 13, the bobbin stopper 27 is temporarily retracted when the bobbin 19 passes, and automatically projected out when the bobbin 19 is installed in a defined position, checking the movement of the bobbin 19. The flier 21 can be installed in a similar manner.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a bobbin support device for a wire twisting machine, and particularly to a wire twisting machine that twists a plurality of wires wound around a bobbin while unwinding them with a flyer. The present invention relates to a suitable bobbin support device.

[Prior art and its problems]

Conventionally,! 2! In order to reduce the number of bobbins to be installed in the i-wire machine, after winding multiple strands of wire into the bobbin with one twist per round, the bobbin is installed in the wire twisting machine, and when the wires are being twisted, they are twisted by a flyer. A method has been proposed in which a plurality of strands are pulled out in parallel and twisted while untwisting once per round. This is described, for example, in JP-A-59-30438, JP-A-60-106637, and JP-A-61-89392.

In the case of such a wire twisting method, the bobbin is mounted on a support shaft supported in a cantilever manner by the frame of the wire twisting machine, and a flyer is installed on the open end side of the support shaft.

Therefore, in order to attach and detach the bobbin, it is necessary to remove or move the flyer, which not only complicates the structure of that part, but also impairs the workability of attaching and detaching the bobbin.

[Means for solving problems and their effects]

The present invention provides a bobbin support device that solves the problems of the prior art as described above, and has a structure in which the base end is fixed to the frame of a wire twisting machine, and the bobbin mounting part is attached to the base end. , a support shaft having a flyer attachment part on the tip side; and a support shaft provided on the bobbin attachment part of the support shaft, which prevents movement of the bobbin in the axial direction by protruding from the circumferential surface of the attachment part, and within the circumference of the bobbin attachment part. a bobbin stopper that enables the bobbin to be attached and removed by retracting the bobbin; a flyer stopper that enables the flyer to be attached or removed by retracting within the surface; and a stopper actuator that is provided within the support shaft and causes the bobbin stopper and the flyer stopper to protrude or retract together from the respective circumferential surfaces. It is characterized by having a mechanism.

According to the above configuration, since the bobbin stopper and the flyer stopper are interlocked, the bobbin and the flyer can be easily attached and detached.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

In the figure, 11 is the frame of the wire twisting machine, 13 is a hollow support shaft whose base end is fixed to the frame 11, 15 is a bobbin attachment part formed on the base end side of the support shaft 13, and 17 is the support shaft 13. 19 is a bobbin attached to the bobbin attachment section 15, and 21 is a flyer attached to the flyer attachment section 17. Flyer attachment part 1
7 has a smaller outer diameter than the bobbin mounting part 15, and there is a tapered surface 2 between which the bobbin 19 can be easily mounted.
It is 3. Further, the tip of the flyer mounting portion 17 also has a tapered surface 25 to facilitate mounting of the flyer 21.

Further, 27 is a bobbin stopper provided at 906 intervals on the tip side of the bobbin mounting part 15, and 29 is a bobbin stopper provided in the flyer mounting part 1.
Flyer stoppers provided at the same intervals on the tip side of 7,
31 is an inner cylinder integral with the support shaft 13 coaxially arranged within the support shaft 13, 33 is a rotatable screw rod coaxially arranged within the inner cylinder 31, and 35 is a screw rod at the center as shown in FIG. The first piece 37 is screwed with the screw rod 33, and the second piece 37 is similarly screwed with the screw rod 33.
9 is a first compression spring that pushes the bobbin stopper 27 outward, and 41 is a second compression spring that pushes the flyer stopper 29 outward.

The bobbin stopper 27 and the first piece 35 are engaged with each other on an inclined surface as shown in the figure, and the first piece 35 is in the retracted position (left side).
When the bobbin stopper 27 is in the position shown in FIG.

When the first piece 35 moves forward due to the rotation of the screw rod 33, the bobbin stopper 23 moves inward and its outer end retracts from the circumferential surface of the bobbin mounting portion 15, allowing the bobbin 19 to be attached and detached. Further, when the first piece 35 retreats, the bobbin stopper 23 moves outward by the action of the first compression spring 35, and its outer end protrudes from the circumferential surface of the bobbin mounting portion 15, returning to the illustrated state.

The relationship between the flyer stopper 29 and the second piece 37 is exactly the same. Since both the first piece 35 and the second piece 37 move with the same rotation of the screw wand 330, the bobbin stopper 27 and the flyer stopper 29 move in and out of the circumferential surfaces of the respective mounting portions 15 and 17 at the same time. Therefore, the bobbin 19 and flyer 21 can be attached and detached at the same time. Note that the screw rod 33 is rotated by rotating a gear 43 attached to its end by an electric motor (not shown) via a transmission mechanism.

As mentioned above, in this embodiment, the screw rod 33,
The first and second pieces 35.37 and the first and second compression springs 39.41 constitute a stopper operating mechanism.

Although various configurations of the flyer 21 are possible, in this embodiment, a fixing ring 45 that fits into the flyer mounting portion 17 is used.
A rotating ring 47 is attached to the outer periphery of the rotating ring 47 via a bearing, and guide rolls 51A, 51B, and 51G are attached to the rotating ring 47 via arms 49A, 49B, and 49C.

Next, the operation of this device will be explained. A plurality of wires are wound around the bobbin 19 with one twist per turn. This twisted wire group 53a is drawn out in the axial direction of the bobbin 19 through guide rolls 51A, 51B, and 51C. Then, the flyer 21 rotates according to the amount of the drawn wire, and the twisted wire group 5 is drawn from the bobbin 19.
3a is unwound, and when the unwound homogeneous wire group 53a passes through the guide roll 51C at the center of rotation, it is untwisted once per rotation of the flyer, and the parallel wire group 53a is untwisted once per rotation of the flyer.
It becomes 3b and is pulled out. Thereafter, this group of parallel strands 53b is divided into individual strands and twisted.

When the bobbin 19 is emptied by drawing out the wire, the screw rod 33 is rotated to retract the bobbin stopper 27 and flyer stopper 29, and the flyer 2
1 and bobbin 19. Thereafter, the screw rod 33 is reversely rotated to project the bobbin stopper 27 and flyer stopper 29, and then the fully wound bobbin and flyer 21 are attached. Since the outer end surface of the bobbin stopper 27 is formed so as to be continuous with the tapered surface 23 of the support shaft 13, the bobbin stopper 27 retracts once when the bobbin 19 passes, and automatically when the bobbin 19 is installed in the fixed position. The bobbin 19 protrudes to prevent movement of the bobbin 19. The same applies when attaching the flyer 21.

Incidentally, the bobbin 19 and the support shaft 13, and the fixing ring 45 of the flyer 21 and the support shaft 13 are prevented from relative rotation by suitable concave and convex fittings (not shown).

〔Effect of the invention〕

As explained above, according to the present invention, the bobbin and the stopper are mounted on the same support shaft, and the bobbin stopper and the flyer stopper are interlocked, so it is extremely easy to attach and detach the bobbin and the flyer, and the workability is excellent. At the same time, there is an advantage that the structure is simple.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing a bobbin support device for a wire twisting machine according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the bobbin mounting portion of the support device. 11 - frame, 13 - support shaft, 15 - bobbin attachment part,
17-flyer attachment part, 19-bobbin, 21-flyer, 27-bobbin stopper, 29-flyer stopper, 33-screw land, 35-first piece, 37-second piece, 39-first compression Spring, 41 - second compression spring.

Claims (1)

[Scope of Claims] A support shaft whose base end is fixed to a frame of a wire twisting machine, and has a bobbin attachment part on the base end side and a flyer attachment part on the distal end side; , a bobbin stopper that protrudes from the circumferential surface of the mounting portion to prevent the bobbin from moving in the axial direction, and that retracts within the circumferential surface to enable attachment and detachment of the bobbin; a flyer stopper which is provided within the support shaft and which prevents movement of the flyer in the axial direction by protruding from the circumferential surface of the mounting portion and which enables attachment and detachment of the flyer by retracting within the circumferential surface; A bobbin support device for a wire twisting machine, comprising: a stopper actuation mechanism that causes the bobbin stopper and flyer stopper to protrude or retract together from the respective circumferential surfaces.