JPS6124542Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a drive device for a package reversing roller, and is capable of rotating the package reversing roller while supporting a cam that operates each part of the yarn splicing mechanism without providing a dedicated motor for the package reversing roller. By using the shaft as the drive source and transmitting power from the shaft to the package reversing roller, the space occupied by the motor is eliminated and more space is provided within the thread splicing carriage.

An example of implementing the present invention will now be described with reference to the drawings.

Reference numeral 1 denotes a yarn splicing cart frame from which a fixed bracket 2 is suspended. The fixed bracket 2 is provided with a fixed shaft 3, and the fixed shaft 3 is provided with a first swinging bracket 4.
and sprockets 6 and 7 that swingably support the second swing bracket 5 and are integrally constructed.
is pivoted so that it can rotate freely. A reversing roller shaft 8 is provided at the tip of the first swing bracket 4, and a reversing roller 9 and a sprocket 10 are fixed to the shaft 8.
A chain 11 is installed between the sprocket 10 and the sprocket 6.

A cam roller shaft 12 is provided at the tip of the second swing bracket 5, and a cam roller 13 is fixed to the shaft 12. A sprocket 14 is integrally provided on the cam roller 13, and a chain 15 is installed between the sprocket 14 and the sprocket 7.

Reference numeral 20 denotes a yarn splicing mechanism drive shaft, which pivotally supports a plurality of cams for operating various parts of the yarn splicing mechanism (not shown); 21 denotes a cam for rotating a reversing roller fixed to the shaft 20; It has a notch 22 on the outer periphery of which the cam roller 13 is pressed. 23
is a spring that is engaged with a pin 24 at the tip of the second swing arm 5, and the elastic force of the spring 23 causes the cam roller 13 to come into pressure contact with the outer peripheral edge of the cam 21 for rotating the reverse roller. Reference numeral 25 denotes a stopper, which is brought into contact with the cam roller 13 and stops its rotation when the cam roller 13 is positioned within the notch 22 of the cam 21 for rotating the reverse roller. The yarn splicing mechanism drive shaft 20 is provided with a first swinging bracket swinging cam (not shown), and a rod 26 connected to the cam has its end pivotally supported by the first swinging bracket. ,
Rotation of a first swing bracket swing cam (not shown) causes the rod 26 to reciprocate and the first swing bracket 4 to swing.

30 is a package.

When there is no need to rotate the package 30 now, the reverse roller rotation cam 21 is inserted into its notch 22.
is positioned opposite to the cam roller 13 and stopped. At this time, the stopper 25 fixes the circumferential surface of the cam roller 13 at a position where it remains separated from the cam for rotating the reverse rotation roller. When the yarn splicing signal is received, the yarn splicing mechanism drive shaft 20 starts rotating, and the rod 26 is rotated by the rotation of a cam (not shown).
moves to the left in FIG. 1, rotates the first swing bracket 4 clockwise around the fixed shaft 3, and presses the reversing roller 9 against the package 30 (dashed line in FIG. 1). At the same time as this rotation starts, the cam roller 13 that is in pressure contact with the circumferential surface of the cam 21 rotates due to the rotational drive of the cam 21 for rotating the reverse roller, and the sprocket 14, chain 15, sprockets 7, 6, chain 11, and The drive system of the sprocket 10 on the first swing bracket 4 side rotates, and the package reversing roller 9 integrated with the sprocket 10 rotates in the direction of the arrow in FIG.

The rotation of the reversing roller rotation cam 21 causes the reversing roller 9 to rotate in the direction of the arrow, and the package 1 to be pressed into contact with the reversing roller 9 rotates in the direction of the arrow.
By rotating the yarn in the opposite direction to the direction of rotation during winding, the yarn end can be easily unwound.

Next, as the yarn splicing mechanism drive shaft 20 rotates, the rod 26 is pulled to the right by the action of a cam (not shown), and the first swing bracket 4 moves the reversing roller 9 away from the package 30 to the position shown by the solid line in FIG. return. At this time, the notch 2 of the cam 21 for rotating the reverse roller
A cam roller 13 is located within the cam 2, and its rotation is stopped when it comes into contact with the stopper, and its circumferential surface is separated from the circumferential surface of the notch 22 of the reverse rotation roller rotation cam 21 to stop.

As described above, the device of the present invention transmits the rotation of the cam for rotating the reversing roller fixed to the yarn splicing mechanism drive shaft to the reversing roller by the sprocket and chain supported by the first and second swing brackets. As a result, there is no need to provide a drive motor to rotate the reversing roller, and the space occupied by the motor within the apparatus is eliminated, making it possible to provide more space within the yarn splicing carriage.

[Brief explanation of the drawing]

FIG. 1 is a side view, and FIG. 2 is a partially cutaway front view. 3...Fixed shaft, 4...First swing bracket,
5... Second swing bracket, 8... Reverse roller shaft, 9... Package reverse roller, 12... Cam roller shaft, 13... Cam roller, 20... Thread splicing mechanism drive shaft, 21... Reverse roller rotation cam for.

Claims (1)

[Scope of utility model registration request] A cam for rotating a reversing roller is provided on the yarn splicing mechanism drive shaft provided on the yarn splicing cart, and the first swing bracket and the second swing bracket are swingably supported by a fixed shaft separately provided on the thread splicing cart. At the tip of the first swing bracket, a package reversing roller is supported by a reverse roller shaft, and at the tip of the second swing bracket, a cam roller is supported by a cam roller shaft, and the cam roller is connected to the cam for rotating the reversing roller. A drive system using gears or a chain is provided between the cam roller shaft and the reversing roller shaft, and the first swing bracket has a swing bracket fixed to the thread splicing mechanism drive shaft. A cam pivots a rod that moves back and forth, and as the yarn splicing mechanism drive shaft rotates, the first swing bracket swings via the rod to press the reversing roller against the package and to rotate the reversing roller. A package reversing roller driving device that transmits the rotation of the cam roller accompanying the rotation of the cam to the package reversing roller to reverse the package.