JPS6330413B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a Muille spinning machine, and more particularly to its sliver carriage traverse device.

(Prior Art) Conventionally, Muille spinning machines have adopted a so-called intermittent twisting method in which twisting and winding are performed in the outward and inward strokes of the spindle carriage. Therefore, the longer the spindle stretch, the
Spindle carriage during tip formation
The number of turns in the traverse is small, and the twisting efficiency is high. In addition, with this method, even if the twisting speed is increased, the tension of the yarn is generally soft and there is less occurrence of yarn breakage, and the twisting time for one stretch can be shortened.

The traverse drive source of the sliver carriage is a traverse mechanism in which a single roller chain is connected to a spindle carriage, and the connection point moves back and forth on the chain straight line by reversing the chain wheel. With this traverse mechanism, the time required for spindle stretching can be shortened most when the speed ratio of spindle carriage and sliver carriage is 1:1, as described above.

(Problems to be solved by the invention) As mentioned above, in the Muille spinning machine, the longer the spindle stretch, the better the twisting efficiency and the shorter the twisting time, but in wool spinning, a wide variety of raw materials are used. Since roving is made, if it is set on a stretching table that is too long, the quality of the yarn may deteriorate due to uneven twisting, etc.

Also, if the speed ratio of the spindle carriage and sliver carriage is set to 1:1, the speed ratio of the inward and outward movement of the spindle carriage is approximately 2:1, so the interlocking sliver carriage The advancing speed also increases, and it is necessary to apply sudden braking to turn back or stop the sliver carriage at the fixed position at the inward advancing end.
This is to maintain a constant distance between the sliver delivery front roller and the spindle when they are closest to each other. That is, when the distance between the sliver delivery front roller and the spindle when they are closest to each other becomes narrower, the thread wound around the spindle is pulled back, producing a snarl. On the other hand, if the spacing is wide, the tension of the thread will be strong and the thread will break more often. In response to this, it is possible to install various shock absorbing and braking devices, but slight differences in adjustment may cause shocks to the sliver carriage, causing the front top roller and sliver to fall, and damage to the sliver carriage. , undesirable.

The object of the present invention is to provide a sliver carriage traverse device for a Muille spinning machine that can be set to a stretch suitable for a wide variety of roving yarns and can increase production capacity.

(Means for solving the problems) As a means for solving the above problems, the first
The invention of spindle carriage and sliver
In a mill spinning machine in which the carriage traverses in synchronized directions in opposite directions, the spindle carriage traverses with a constant stretch, and the stretch can be set to suit the roving by setting an arbitrary set speed ratio to the spindle carriage. This is a sliver carriage traverse device.

Further, a second invention is a mill spinning machine in which a spindle carriage and a sliver carriage traverse in synchronized directions in opposite directions, in which two belts or chains for driving the traverse of the sliver carriage are hung in parallel, and between the parallel The traverse block is loosely supported and combined with the sliver carriage traverse guide, and the inward traverse end of the sliver carriage traverse guide is connected to the traverse drive belt.
This is a sliver carriage traverse device characterized in that the traverse dead center of the wheel coincides with the traverse dead center.

(Example) The present invention will be described below based on drawings showing examples. In the figure, 1 is a spindle carriage, on which a spindle 2 is mounted, a sliver carriage equipped with a front roller 3, a front top roller 4, a sliver roller 5, and a sliver spool stand 6. Linked with 7. The sliver carriage 7 has a sliver carriage wheel 8 and is connected to a traverse guide 9 so that it can traverse on a rail 10. 36 is a sliver. The spindle carriage 1 has a spindle carriage wheel 11 which is driven by a head stock 37 and is able to traverse over a rail 12.

A bracket 13 is provided before and after the spindle carriage 1, and a timing belt 1 is attached to this bracket.
Both ends of 4 are fixed. The timing belt 14 is engaged with timing belt pulleys 15 and 16 on the left and right sides of the figure. The timing belt pulley 15 is attached to a shaft that is loosely supported by a bracket 17, and the other timing belt pulley 16 is attached to a back shaft 19 that is loosely supported at one end by a bracket 18. There is. Further, a traverse drive gear 21 is attached to the back shaft 19 via a bearing 20, and the other traverse drive gear 2 engages with the traverse drive gear 21.
2 is connected to a transmission 23.

The transmission 23 is provided with a timing pulley 24, and a timing belt 26 is engaged between it and a timing pulley 25 provided on the right side of the rail 10 (as shown). A shaft 27 to which a timing pulley 25 is coupled and supported is loosely supported by a bearing 28 and has two chain wheels 29 attached to opposite ends. Similarly, two chain wheels 30 are provided on the opposite side of the chain wheel 29, and two chains 31 are suspended in parallel between them. A sliver carriage traverse block 32 is held at one location of the parallel chains 31 and is loosely supported by a pin. Chain
The wheel 30 is loosely supported by studs 34 and 35 supported by a bracket 33, and is supported by a chain 31.
The sliver carriage 7 can be turned back at the traverse dead center. That is, the chain 31 is hung so that the traverse block 32 coincides with the traverse dead center. As a result, the reverse drive of the chain 31 causes the traverse block 32 to slide within the longitudinal groove 9a of the traverse guide 9 connected to the sliver carriage 7, causing the sliver carriage 7 to traverse. The position of the outward end of the sliver carriage 7 is on the straight line of the traverse chain and can be arbitrarily set by changing the traverse speed ratio with respect to the spindle carriage 2. The chain 31 may alternatively be an endless belt.

In the Muille spinning machine configured as described above, by providing a transmission between the traverse mechanism of the spindle carriage and the traverse mechanism of the sliver carriage, the spindle carriage and sliver carriage can be adjusted from 1:0 to 1:1. Any speed ratio within the range of 1 can be set to suit any roving.

In addition, by setting the speed ratio to 1:1, the traverse speed is twice that of a Muille spinning machine that has only a spindle carriage traverse or only a sliver carriage traverse.
Production can be doubled by increasing the speed of spindle rotation.

Furthermore, by connecting two roller chains for traverse drive of the sliver carriage in parallel, it is possible to
A traverse block can be loosely supported at the location and combined with the sliver carriage traverse guide to align the inward end home position of the sliver carriage with the traverse dead center of the traverse chain wheel. Thereby, the sliver carriage can gradually automatically decelerate near its end position during inward movement, and turn around with the traverse dead center of the traverse chain wheel as the inward movement end position. After turning around, the vehicle returns to a constant traverse speed. In addition, the outgoing end stop position of the sliver carriage is on the straight line of the traverse chain, as mentioned above.
It can be arbitrarily determined according to the setting of the spindle/carriage speed ratio in accordance with the conditions of the roving, etc.

(Effects of the Invention) As explained above, the present invention provides a transmission between the traverse mechanism of the spindle carriage and the traverse mechanism of the sliver carriage in a Mieur spinning machine. Carriage 1:0
It is possible to set the stretch to suit any kind of roving by setting an arbitrary speed ratio in the range of ~1:1, which has the effect of improving production capacity.

In addition, a traverse block is loosely supported on the sliver carriage traverse drive roller chain, and the sliver carriage traverse
In combination with a guide, by aligning the inward end position of the sliver carriage with the traverse dead center of the traverse chain wheel, the sliver carriage automatically decelerates gradually near its end position during inward movement. However, the traverse dead center of the traverse chain wheel can be used as the inward movement end position and can be turned back.

[Brief explanation of the drawing]

FIG. 1 is a side view of a Muille spinning machine including an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view showing details of its main parts, and FIG. 4 is a plan view thereof. 1...Spindle carriage, 7...Sliver carriage, 9...Sliver carriage.
Traverse guide, 30... Traverse drive belt/wheel, 31... Traverse drive belt, 32... Traverse block, 36...
Sliver.

Claims (1)

[Claims] 1. In a mill spinning machine in which the spindle carriage and the sliver carriage traverse synchronously in opposite directions, the spindle carriage traverses with a constant stretch, and the roving carries the roving with an arbitrary set speed ratio. A sliver carriage traverse device characterized by being able to be set to an appropriate stretch. 2. In a mill spinning machine in which the spindle carriage and the sliver carriage traverse synchronously in opposite directions, two belts or chains for driving the traverse of the sliver carriage are laid in parallel, and a traverse block is loosely connected between the parallel belts or chains. A sliver carriage supported and combined with a sliver carriage traverse guide, the inward traverse end of said sliver carriage traverse guide being aligned with the traverse dead center of a traverse drive belt wheel.・Traverse device.