JPS5943392Y2 - Mechanism for fixing the lap drum to the rotating shaft - Google Patents

Description

[Detailed Description of the Invention] (Purpose of the Invention) The present invention is characterized in that the wrap drum and rotating shaft of a sliver wrap machine or ribbon wrap machine are fixed using a friction joint. It is about the mechanism.

(Prior Art) The wrap drum used in sliver wrap machines or ribbon wrap machines has a large diameter and is heavy, and the torque during rotation is extremely large. was used to fix the lap drum and rotating shaft.

However, if the lap drum gets scratched, the lap drum must be removed from the rotating shaft in order to be re-polished.
Conventionally, the key was driven in and fitted, making it impossible to easily remove the lap drum from the rotating shaft.

On the other hand, the rotating shaft that fixes the lap drum is supported by bearings added to each frame located on both sides of the lap drum.

This frame is divided into upper and lower parts above the rudder bearing so that the lap drum and rotating shaft can be increased or removed, and the rotating shaft of the lap drum is attached to the upper and lower frames for use.

In addition, since the lap drum is fixed to the rotation shaft via a key, the lap drum and rotation shaft must be removed from the integral lower frame. To remove it, you have to remove the upper frame.

However, various devices and covers have been installed on this upper frame, making it very difficult to remove the lap drum.

(Structure of the invention) The present invention was made in view of the above-mentioned problems.
The wrap drum of the sliver wrap machine or ribbon wrap machine is fixed to the rotating shaft via a friction joint, and the end of the fitting hole provided in the boss of the wrap drum is
By fitting the large diameter portion provided on the rotating shaft without any gaps, it is possible to easily attach and remove the lap drum and the rotating shaft, which are performed periodically, and at the same time improve the concentricity between the rotating shaft and the lap drum. It is to let.

Hereinafter, the present invention will be explained in more detail with reference to FIGS. 1 and 2.

In a sliver wrap machine or a ribbon wrap machine, a pair of wrap drums 3 are attached diagonally below the bobbin 1, and the wrap drums 3 rotate in the same direction and at almost the same speed, applying strong pressure to the wrap fleece 2 wound around the bobbin 1. It gradually rises as the fleece 2 is rolled up.

The rotating shaft 6 is inserted into the fitting hole 5 provided in the boss 4 of the lap drum 3, and the large diameter portion 7 provided in the rotating shaft 6 is fitted into one end of the fitting hole 5. A friction joint 8 is fitted between the inner peripheral surface of the other end and the outer peripheral surface of the rotating shaft 6.
The tightening is done by tightening the bolt 9, and the tightening that occurs between the members constituting the friction joint 8 and the boss 4 and rotatable shaft 6 of the lap drum 3 is done by pressure.
is fixed to the rotating shaft 6.

Bearings 11 are attached to each frame 10 located on both sides of the lap drum 3, and the rotating shaft 6 is rotated by the bearings 11.
Both ends are rotatably supported.

The frame 10 can be divided into upper and lower parts above the bearing 11.

Additionally, the rotating shaft 6 is provided with a large diameter portion 7, and the large diameter portion I is fitted into one end of the fitting hole 5 provided in the boss 4 of the lap drum 3 due to the concentricity of the friction joint 8. Because of bad
This is to improve the concentricity between the rotating shaft 6 and the lap drum 3, and to allow the friction joint to be used with a →.

In addition, 12 in the figure is a driven gear fitted to the rotating shaft 6.

Reference numeral 13 indicates lap plates attached to both ends of the bobbin 1.

(Effect of the invention) Since the present invention has the above-mentioned configuration, the rotation shaft 6 can be easily removed from the lap drum 3 by loosening the bolt 9 to tighten the friction joint 8, and the rotation shaft 6 can be easily removed from the lap drum 3. The lap drum 3 can be removed from between both frames 10 while being separated from the shaft 6. Therefore, there is no need to remove the upper frame 10 when adding or removing the lap drum 3, making it easy to fit into narrow spaces. The lap drum 3 and rotating shaft 6 can be added or removed even if

Moreover, the fitting hole 5 provided in the boss 4 of the lap drum 3
In addition, since the large diameter portion 7 provided on the rotating shaft 6 is fitted without any gap, it is possible to improve the concentricity between the rotating shaft 6 and the lap drum 3, which are sometimes buttoned during installation, and to reduce friction during use. Can be installed with just one fitting.

According to this invention, compared to the conventional key drive-fitting method, there is no need for a space to drive the key, and the lap drum 3 and rotation shaft 6 can be attached and detached in a narrow space. In addition, since the time required for attaching and removing the lap drum 3 is drastically reduced, the time for stopping the machine for attaching and removing the lap drum 3 can be greatly reduced. In turn, the impact on production can be kept to a minimum.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing the positional relationship between the lap drum 3 and the bobbin 1, and FIG. 2 is an enlarged sectional view taken along the line X--X in FIG. 1. Explanation of symbols of main parts, 3... Lap drum,
4...Boss of lap drum, 5...Double hole, 6...Rotating shaft, T...Large diameter part of rotating shaft, 8...・Risaku joint.

Claims (1)

[Scope of utility model registration request] A lap drum 3 of a sliver wrap machine or a ribbon wrap machine is fixed to a rotating shaft 6 via a friction joint 8, and the rotating shaft 6 A mechanism for fixing a lap drum to a rotating shaft, characterized in that a large-diameter portion 7 provided on the shaft is fitted without a gap.