JPH08232121A - Double twister - Google Patents

Abstract

PURPOSE: To enable the easy adjustment of belt tension with a simple structure. CONSTITUTION: The subject double twister is provided with a driving motor 22 for circulating an endless belt 21 making frictional contact with each spindle and a belt tension-adjusting means expanding in an extending direction A of the belt 21, which is placed between a partition board 24 of an end box 23 for storing the motor 22 and the main body 25 of the motor 22. The belt tension- adjusting means is consisting of a pantagraph-type jack 26 expanding with the rotation of a screw rod 48 placed in the direction crossing to the direction A. The motor 22 is fixed on a base board 31 freely slidable along lateral rods 28, made by sheet metal work, constructing the end box 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double twister having a drive motor for driving a spindle of each weight.

[0002]

2. Description of the Related Art As shown in FIG. 3, a double twister 1 is constructed by arranging a large number of weights 4 equipped with a yarn twisting portion 2 and a winding device 3 side by side. A motor 5 is housed in an end box 11 installed at one end of the weight row, and an endless belt 6 is circulated and run by its rotational drive, and the spindle 12 of the yarn twisting portion 2 is simultaneously rotated at a high speed by its frictional contact. It has become. A speed reducer 7 and a gear train 8 housed in a case 13 are provided at the other end of the weight train, and the circulation running of the endless belt 6 is changed to an appropriate rotation so that the winding drum 9 of the winding device 3 and The traverse guide 10 is driven.

[0003]

By the way, the spindle 1
For the endless belt 6 that is in frictional contact with the belt 2, it is necessary to adjust the distance between the pulleys around which the tension is set to a predetermined value. Conventionally, the mounting base of the motor 5 is moved back and forth by bolts and nuts to adjust the belt tension. Therefore, there is a problem that the mounting base and the like need to be solid, the number of parts is increased, and the tension adjustment work is troublesome.

Therefore, the present invention was devised to provide a double twister which can easily adjust the belt tension with a simple structure.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a drive motor for circulating running an endless belt frictionally contacting a spindle of each weight, and a wall portion of an end box accommodating the drive motor and a drive motor main body are provided. And a belt tension adjusting means for expanding and contracting in the extension direction of the endless belt. The belt tension adjusting means is preferably a pantograph-type jack that expands and contracts by rotating a screw rod extending in a direction intersecting the extension direction.
Further, it is preferable that the drive motor is attached to a base plate that is slidable along a horizontal beam of sheet metal processing that constitutes the end box.

[0006]

With the above structure, the belt tension adjusting means changes the position of the drive motor main body by the expansion and contraction operation thereof to increase or decrease the tension of the endless belt. The belt tension adjusting means, which is a pantograph type jack, operates by operating a screw rod from the side of the end box to set the belt tension to a desired value. The base plate slides along the lateral beam in accordance with the operation of the belt tension adjusting means, and holds the drive motor.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show an embodiment of a double twister according to the present invention. This double twister is a drive motor 22 for circulating the endless belt 21 that frictionally contacts a spindle (not shown) of each weight.
And a pantograph type jack 26 which is a belt tension adjusting means provided between a partition plate 24 which is a wall portion inside the end box 23 which houses the drive motor 22 and a drive motor main body 25. .

The end box 23 is provided at one end of the weight row and is mainly composed of columns 27 standing upright at the four corners and sheet metal-working horizontal beams 28 provided between the columns 27. It is attached between the pillars 27 on the weight side B.
The cross beam 28 has a substantially U-shaped cross section, and extends in parallel with the belt extending direction (weight direction) A at the lower end of the column 27. Round holes 30 for inserting bolts are formed at appropriate intervals on an upper surface 29 of the lateral beam 28, and both side ends are placed on the upper surface 29 and a base plate 31 for mounting a motor is spanned. Two long holes 32 extending in the belt extension direction A are provided at both ends of the base plate 31, and bolts 33 are inserted into the long holes 30 and the round holes 32 to tighten the nuts.
The base plate 31 can be fixed at any position. The front end 34 of the base plate 31 is bent downward and the rear end 35 is bent upward to be reinforced. A guide member that engages with the inner surface of the lateral beam 28 may be attached to the back side of the base plate 31.

The drive motor 22 is erected so that its output shaft 36 faces downward, and the flange 37 of the housing of the drive motor main body 25 is superposed on the central upper surface of the base plate 31 and fixed by bolts and nuts 38. ing. The output shaft 36 projects below the base plate 31, and a drive pulley 39 is directly connected to the tip of the output shaft 36. A pair of guide pulleys 40 are provided at positions on both sides of the drive pulley 39 that are appropriately separated from each other on the weight side.
It is wound between 9, 40 and a driven pulley (not shown) provided at the other end of the weight train. Guide pulley 40
Are supported on the lower portion of the horizontal beam 28 via a bracket 41.

The jack 26 is composed of four link members 42, 43, 44, 45 assembled in a rhombus shape, and the abutting brackets 46, 47 are provided at the link connecting portions on one diagonal, and Screw rod 4 on the other diagonal link joint
Nut portions 49 and 50 that are screwed to the screw 8 are provided. One of the abutting brackets 46 is attached to the inner wall of the partition plate 24 by the bolts 51, and the other abutting bracket 47 is attached to the housing lower portion 5 of the drive motor body 25.
It is in contact with the front end of the peripheral surface of No. 2. Ie screw rod 4
8 extends in a direction perpendicular to the extension direction A, and one end 5
By rotating 3 with the operation crank 54, the coupling angle of the link members 42 ... 45 is changed and the endless belt 21 is expanded and contracted in the extension direction A.

Therefore, in order to increase the tension of the endless belt 21, the screw rod 48 is rotated in the direction in which the jack 26 extends, and the drive motor 22 is pressed in the direction away from the weight side B. When the desired belt tension is reached, the base plate 31 is fastened by bolts at that position.
Is fixed on the cross beam 28. In this state, since the jack 26 receives the reaction force of the belt tension, the bolt 3
No load is applied to 3 in the shearing direction, and no force that deforms the base plate 31 is exerted. If it becomes necessary to lower the belt tension, bolt 33
Is temporarily loosened so that the base plate 31 can slide on the cross beam 28, and then the screw rod 48 is reversely rotated to shorten the jack 26. When the desired belt tension is reached, the base plate 31 is bolted at this position.

As described above, since the jack 26 is provided between the drive motor main body 25 and the partition plate 24 of the end box 23 so as to directly press the drive motor 22, the position of the drive motor 22 is expanded and contracted. The tension adjustment work of the endless belt 21 can be performed very easily. Further, the base plate 31 need only be relatively thin enough to support the weight of the drive motor 22, and no other brackets are required. Therefore, the base plate 31 can have a simple and lightweight structure with a small number of parts. The base plate 31 can be slid using the upper surface 29 of the lateral beam 28 of the end box 23.
Position 2 can be set in a stable state with a simple configuration. Further, since the jack 26 of this embodiment can be operated from the side, even if a control panel or the like is already provided at the rear portion of the end box 23 (the side opposite to the weight side B), the work can be easily performed. .

In this embodiment, a manually operated jack 2 used for a vehicle as belt tension adjusting means.
Although 6 is shown, any structure may be used as long as it has an appropriate pressing force.

[0015]

In summary, according to the present invention, the excellent effect that the tension of the endless belt can be easily adjusted with a simple structure is exhibited.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a double twister according to the present invention.

FIG. 2 is a cross-sectional view of a main part of FIG.

FIG. 3 is a side view showing a conventional double twister.

[Explanation of symbols]

 21 Endless Belt 22 Drive Motor 23 End Box 24 Partition Plate (Wall) 25 Drive Motor Main Body 26 Jack (Belt Tension Adjusting Means) 28 Horizontal Beam 31 Base Plate 48 Screw Rod A Belt Extension Direction

Claims (3)

[Claims] 1. A drive motor for circulatingly traveling an endless belt frictionally contacting a spindle of each weight, and a drive motor provided between a wall portion of an end box accommodating the drive motor and the drive motor main body. A double twister comprising a belt tension adjusting means that expands and contracts in the extension direction. 2. The double twister according to claim 1, wherein the belt tension adjusting means is a pantograph-type jack which expands and contracts by rotating a screw rod extending in a direction intersecting with the extending direction. 3. The double twister according to claim 1, wherein the drive motor is attached to a base plate that is slidable along a horizontal beam of sheet metal processing that constitutes the end box.