JPS6036610Y2 - Loading device of drawing machine - Google Patents

Description

[Detailed description of the invention] The present invention is a top arm type load that presses the top roller, turning roller, etc. placed on each bottom roller in the drafting section of a wire drawing machine toward the bottom roller at both ends of each. The present invention relates to an apparatus, and in particular to an improvement in a pressing mechanism for a turning roller disposed in front of a front bottom roller.

In recent years, the speed of filament machines has been increased, and the maximum spinning speed has reached 50 mm per minute.

One of the factors that made this high-speed drawing machine possible is the provision of a turning roller in front of the front bottom roller that changes the direction of movement of the fleece after drafting from horizontal to diagonally downward. can.

However, as shown in FIG. 1, this turning roller 1 has left and right bearings 2 fitted into both ends of the turning roller 1, which are fitted into diagonally upward fitting grooves 3a provided in the left and right slide metals 3. Pressure is applied to the front bottom roller 6 in the axial direction at both ends thereof by a pressurizing deflection lever 4 and a top arm type loading device 5, in which a bearing 2 is pivotally supported on the left and right slide metals 3.

In this way, the pressure direction change lever 4 for the turning roller 1
In the conventional device in which the turning roller 1 is pivoted on the slide metal 3, the turning roller 1 is
When attaching or detaching, it is necessary to unhook this pressure deflection lever 4 together with the loading device 5 each time. In particular, if you forget to engage this pressure deflection lever 4, the turning roller 1 may be in an unloaded state. As a result, since the fleece cannot be sent out between the turning roller 1 and the front bottom roller 6, a large amount of fleece is stagnated between the turning roller 1 and the front top roller 7, and the fleece is not fed out again between the turning roller 1 and the front top roller 7. Fiber wrapping occurs on the front top roller 7, etc., and sliver breakage occurs downstream, causing the machine to stop.

In view of the above, in the present invention, a plurality of pressurizers biased downward by springs are attached to a swingable top arm pivotally supported above the roller stands on both sides of the drafting section so as to be movable up and down. A loading device for a wire drawing machine in which a top arm is locked in a pressurizing position so that each top roller and turning roller of a drafting section is pressed against each bottom roller,
A pressure change lever whose upper end is pivoted to the top arm is attached below the pressure element for the turning roller attached to the foremost part of the top arm.The pressure change lever is attached to the front side of the front bottom roller. The turning jig, which is placed diagonally from above, presses both ends of the turning jig in the axial direction of the front bottom roller. , the pressure direction change lever for the turning roller can be automatically unlatched by simply operating the top arm of the loading device, making it easy to attach and detach the turning roller, which is relatively frequently done. The purpose is to provide a loading device for a wire-stretching machine that can eliminate troubles caused by forgetting to do so.

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in FIGS. 2 and 3.

Slide metal 3A fixed on the left and right roller stands 9A and 9B.

3B, a front bottom roller 6A is pivotally supported, and a front top roller 7A is placed on the front bottom roller 6A, and the bearings 8A and 3B at both ends are connected to the fitting grooves 3b of the left and right slide metals 3A and 3B. is mated to.

In addition, on the front side of this front bottom roller 6A, there are fitting grooves 3 that are diagonally upward for the left and right slide metals 3A and 3B.
A turning roller IA fitted with bearings 2A at both ends is provided at C.

A second bottom roller 11A is pivotally supported on the left and right slide metals IOA and IOB mounted on the roller stands 9A and 9B behind the front roller slide metals 3A and 3B (on the right side in FIG. 2). A second top roller 12A is placed on the IIA, and bearings 13A and 13B at both ends thereof are fitted into left and right slide metals IOA and LJlloa of IOB.

Furthermore, the slide metal IOA for this second roller,
A back bottom roller 15A is pivotally supported by left and right slide metals 14A and 14B mounted on roller stands 9A and 9B at the rear of the IOB.
A back top roller 16A is placed on top of the back top roller 16A, and the bearings 17A and 17B at both ends are connected to the left and right slide metals 14A.
, 14B are fitted into the fitting grooves 14a.

In addition, left and right brackets 18A, 18 are installed at the rear of the left and right roller stands 9A, 9B where such drafting parts are arranged.
B is installed, and these left and right brackets 18A, 18B
Left and right swingable top arms 2OA and 20B whose rear ends are pivotally supported by pins 19 are attached to the upper ends of the arms.

The left and right top arms 20A, 20B have a plurality of arms (four in the illustrated example) that are biased downward by springs 21.
Pressure elements 22a, 22b, 22c, and 22d are mounted so as to be movable up and down, and the upper ends are pinned to the top arms 20A and 20B below the pressure elements 22a for turning rollers mounted on the frontmost parts of the top arms 20A and 20B. A pressurization and direction change lever 4A pivotally supported via 23 is attached.

As shown in FIG. 2, the left and right top arms 20A, 20B are locked with a locking pin 24 at their front end connected to a swingable lever 25 pivoted to the front roller slide metals 3A, 3B. When the hook 26 is engaged and the bundle 27 is placed in the pressurized position shown in FIG.
Pressure elements 22b, 22c, 22d attached to 0A, 20B
The elasticity of the spring 21 causes the front, second, and back top rollers to move? A, 12A, 16A are pressed against the respective bottom rollers 6A, 11A, 15A at both ends of the waist.
The turning roller IA is pressurized from the front side at both ends of the turning roller IA through A in the axial direction of the front bottom roller 6A.

The top arms 2GA, 2 of this embodiment configured in this way
As mentioned above, in 0B, the pressure change lever 4A, whose upper end is pivoted to the top arms 20A and 20B, is attached below the turning roller presser 22a attached to the frontmost part of the 0B. When attaching or detaching the turning roller IA by pulling out the sliver or winding the fibers, remove the locking hook 26 that was locked to the locking pin 24 at the front end, and attach the front ends of the left and right top arms 20A, 20B to the third When lifted as shown in the figure, the attached pressurizing and deflecting lever 4A also moves upward and disengages from the bearing 2A of the turning roller 1A, allowing the turning roller 1A to be taken out immediately.

Furthermore, when the turning roller IA is placed on the front bottom roller 6A and the front ends of the top arms 20A and 20B are pushed down, the attached pressure direction change lever 4A is simultaneously lowered and its lower end is moved as shown in FIG. Since it comes into contact with the bearing 2A of the turning roller 1A, if the locking hook 26 is locked to the locking pin 24 at the front end in this state, the pressurized state shown in FIG. I'll never forget it.

As described above, the present invention provides a loading device for a drawing machine that is equipped with a turning roller on the front side of the front bottom roller of the drafting section. A pressure change lever is attached whose upper end is pivoted to the top arm, so just by swinging the top arm up and down, the pressure change lever for the turning roller can be automatically unlatched and removed. It is easy to attach and detach the sliver, and it also eliminates troubles such as fiber wrapping and sliver breakage caused by forgetting to engage the pressure change lever.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing a loading device in a conventional wire-stretching machine.
FIG. 2 is a cross-sectional view showing a pressurized state in an embodiment of the present invention, and FIG. 3 is a cross-sectional view showing the loading device in a released state. 1, IA... Turning roller, 4, 4A...
...Pressure direction change lever 6,6A...Front bottom roller, 20A, 20B...Top arm, 21...Spring, 22a, 22b
...pressurizer.

Claims (1)

[Scope of utility model registration request] A plurality of pressurizers biased downward by springs are attached to the swingable top arm pivoted above the roller stands on both sides of the drafting section so as to be movable up and down, and the top arm is engaged in the pressurizing position. In a loading device for a wire-stretching machine, the top roller and turning roller of the drafting section are pressed against each bottom roller by stopping the drawing section, and a turning roller presser mounted on the foremost part of the top arm is provided with: Equipped with a pressurized direction lever whose upper end is pivoted to the top arm,
A loading device characterized in that a turning roller placed obliquely from above on the front side of a front bottom roller is pressurized at both ends thereof in the axial direction of the front bottom roller via the pressure and direction change lever.