JPS6215258Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to a rotor cleaning device for removing residual fibers and impurities adhering to the inside of the rotor of an open-end spinning machine.

Prior Art When yarn breakage occurs in an open-end spinning frame, it is necessary to remove residual fibers and the like inside the rotor prior to the yarn splicing operation. Therefore, conventionally, for example, a yarn splicing machine is equipped with a rotor cleaning device, and the cleaning device is provided with a removing member such as a brush or a scraper, and a roller that can come into contact with the outer peripheral surface of the rotor is mounted on the motor shaft of the rotor drive motor. By directly fixing the removing means into the rotor and driving the motor with the removing means inserted into the rotor, the rotor is rotated through the rollers and a cleaning operation is performed. However, with this conventional configuration, when rotors with different outer diameters are used depending on the type of yarn to be spun, the engagement position between the roller of the cleaning device and the rotor changes, so it is difficult to accommodate this change. It was necessary to change the installation position of the drive motor each time.

Purpose This invention was made in order to solve the above-mentioned conventional problems, and its purpose is to make the rotor drive member in a rotor cleaning device come into contact with and separate from the outer peripheral surface of the rotor at an engaging portion provided in a part of the rotor drive member. By providing a pressing member that supports the rotor so as to correspond to the rotor and presses the engaging portion against the outer circumferential surface of the rotor, there is no need to change the installation position of the motor even if the diameter of the rotor used is changed. To this end, it is an object of the present invention to provide a rotor cleaning device for a novel open-end spinning machine that can quickly clean the rotor.

Embodiment Hereinafter, an embodiment embodying this invention will be described based on the drawings.

As shown in FIG. 1, a spinning unit 1 of an open-end spinning machine includes a support section 3 rotatably attached to a machine frame 2, and a support shaft 4 that can open and close the front surface of the support section 3. The opening/closing body part 5 is pivoted to the
These two body parts 3 and 5 are constructed so as to be integrated by suitable joining means during the spinning operation of the spinning machine. A spinning rotor 7 having an oblique outer circumferential surface is attached to a rotating shaft 6 supported in the support body 3, and during the spinning operation, one end of the outer circumferential surface of the rotating shaft 6 is driven by a common drive for all spindles. By contacting the belt 8, the rotor 7 is rotated at high speed.

On the other hand, the yarn splicing machine 11, which can run in front of the frame 2 of an open-end spinning frame while being supported by it, has an opening/closing device for the spinning unit 1 (not shown), and when it stops in front of the yarn cutting weight, The opening/closing device operates to rotate the opening/closing body portion 5 around the support shaft 4. As a result, the rotating shaft 6 is separated from the drive belt 8 and is pressed against the braking member 10 to be braked. Further, a cylinder 12 is installed in the yarn splicing machine 11, and a cleaning device main body 15 is attached to the cylinder rod 13 via an attachment member 14. The cylinder 12 is driven prior to the operation of the yarn splicing device (not shown), and the cleaning device main body 15
moves obliquely downward, and its front surface is joined to the front surface of the support section 3 which is in an open state. At this time, the cleaning device main body 15 slightly pushes back the support portion 3 and rotates it counterclockwise in FIG. 1, so that the rotating shaft 6 is separated from the brake member 10.

Next, the configuration of the cleaning device main body 15 of this embodiment will be explained. As shown in FIG.
A U-shaped bracket 16 is fixed to the bracket 16, and a rotor drive motor 17 is attached to the end face on the side of the yarn splicing machine 11, and a tip end face can be joined to the front face of the support body 3 on the end face on the rotor 7 side. A cover body 18 is attached.

A shaft coupling 21 is fixed to the motor shaft 19 of the drive motor 17 by a set screw 20, and a guide slit 2 is formed in the cylindrical end portion 22 of the shaft coupling 21 along the motor axis.
3 is formed. The cylindrical part 2 of this shaft joint 21
A drive shaft 24 as a rotor drive member is fitted into the guide slit 23 so as to be movable along the motor axis, and a protrusion at one end of a detent pin 25 inserted and fixed at the base end of the drive shaft 24 is fitted into the guide slit 23. has been done. The drive shaft 24 extends into the cover body 18 through an insertion hole 26 provided in the shoulder portion of the cover body 18, and a roller 27 that can come into contact with the outer peripheral surface of the rotor 7 is fixed to the tip thereof.

Further, a compression spring 29 is fitted on the outer periphery of the drive shaft 24 between the flange 28 formed at the center of the drive shaft 24 and the tip end surface of the shaft coupling 21, and the spring force always keeps the drive shaft 24 is biased in the protruding direction,
The roller 27 is pressed against the outer peripheral surface of the rotor 7. When the drive motor 17 is operated, the motor shaft 19 and the drive shaft 24 are rotated together, and the rotor 7 is rotated via the roller 27 in a direction opposite to that during the spinning operation.

On the other hand, a pair of elastic support rods 30 and 31 are disposed within the cover body 18 so as to be movable in the axial direction of the rotating shaft 6, and are attached to a part of the yarn splicing machine 11 at their base ends. A scraper 32 and a brush 3 as removal members are connected to the bent portions at both ends.
3 are installed respectively. When the drive member is activated, both the support rods 30 and 31 are moved toward the rotor 7, and the scraper 32 and brush 33 enter the rotor 7 so that their tips come into contact with the fiber collecting surface of the rotor 7. As the rotor 7 is rotated by the roller 27, residual fibers and the like attached to the inner peripheral surface of the rotor 7 are peeled off and removed. In the figure, reference numeral 34 denotes a discharge port, which is connected to a suction device (not shown) to discharge the removed material to the outside of the cover body 18.

Next, the operation of the rotor cleaning device configured as above will be explained.

Now, when the spun yarn of the open-end spinning machine is cut for some reason, the yarn splicing machine 11 moves the machine frame 2 based on a detection signal from a yarn breakage detector (not shown).
The spinning unit 1 travels in front of the spinning unit and stops in front of the thread cutting weight, and an opening device (not shown) is activated to open the opening/closing body portion 5 of the spinning unit 1 as shown in FIG. One end of the brake member 10 is brought into pressure contact with the brake member 10 and braked. Next, as shown in FIG. 1, the cylinder 12 is operated, and the cleaning device main body 15 is moved from the standby position to the front side of the support body 3 of the spinning unit 1, so that the front surface of the cover body 18 is moved from the standby position to the front side of the support body 3. The rotating shaft 6 is left in a free state. And at this time, the second
A roller 27 provided on the drive shaft 24 as shown in the figure.
is pressed against the outer peripheral surface of the rotor 7 by the spring force of the compression spring 29.

After that, both the support rods 30 and 31 are moved toward the rotor 7, and the scraper 32 and the brush 3 are moved toward the rotor 7.
3 are arranged in contact with the fiber convergence surface of the rotor 7, respectively. Then, in this contact state, the drive motor 17 is started, the drive shaft 24 is rotated via the shaft coupling 21, and the rotor 7 is rotated following the rotation of the roller 27. Therefore, residual fibers and the like adhering to the inner peripheral surface of the rotor 7 are peeled off and removed, and are sucked by the above-described suction device and discharged out of the cover body 18 from the discharge port 34.

When the cleaning work is completed, the operations of the above-mentioned parts are performed in the reverse order, and the cleaning device main body 15 is returned to the standby position. Next, the thread splicing work is performed, and after waiting for the completion of the thread splicing work, the open end is again opened. The spinning machine starts spinning operation.

By the way, in the open-end spinning machine,
It is necessary to use a rotor suitable for the type of spun yarn, and therefore, as the outer diameter of the rotor 7 changes, the engagement position of the roller 27 with respect to its outer peripheral surface changes. However, in the rotor cleaning device of this embodiment, the drive shaft 24 is supported movably along the motor axis and is pressed toward the rotor 7 by the spring force of the compression spring 29.
For example, as shown by the chain line in FIG. 2, when using a rotor 7a with a larger outer diameter, the cover body 1
8 are arranged opposite to the front surface of the support body part 3,
The base end of the drive shaft 24 sinks into the cylindrical portion 22 of the shaft coupling 21 against the spring force of the compression spring 29, and the roller 27 is pressed against the outer peripheral surface of the rotor 7a at the position where it has moved toward the drive motor 17 side. be done. Further, when a rotor (not shown) with a small outer diameter is used, the spring force of the compression spring 29 moves the roller 27 toward the rotor, and presses the roller 27 against the outer peripheral surface of the rotor at that position.

Therefore, according to the cleaning device of this embodiment, the rotation of the drive motor 17 can be transmitted to the rotor 7 while accurately dealing with the change in the outer diameter of the rotor 7. This eliminates the need to change the installation position of the drive motor 17 each time the drive motor 17 is replaced, and thereby the cleaning operation can be performed quickly.

Further, according to the configuration of this embodiment, even if the circumferential surface of the roller 27 wears out over time due to contact rotation with the rotor 7 and its outer diameter becomes smaller, the compression spring 29 allows the drive shaft 24 to protrude. Hey, roller 2
7 and the rotor 7 are maintained in pressure contact, so there is no risk that the transmission function will deteriorate. Moreover, as in this embodiment, if the rotation direction of the rotor 7 during the cleaning operation is set opposite to the rotation direction of the rotor 7 during the spinning operation, the scraper 32 and the brush 3
The action of removing the remaining fibers etc. due to the method No. 3 can be performed more effectively.

It should be noted that this invention is not limited to the above-mentioned embodiment, but can also be embodied in the following modifications.

(1) As shown in FIG. 3, a conical roller 36 is attached to the tip of the drive shaft 24 so that its circumferential surface is joined to the oblique outer circumferential surface of the rotor 7. In this way, in addition to the above-mentioned effects, the transmission efficiency can be further improved.

(2) As shown in FIG. 4, when the outer peripheral surface of the rotor 37 is parallel to its axis, changes in the outer diameter of the rotor 37 can be effectively dealt with by making the roller 38 conical. I can do it.

(3) In addition, in the above embodiment, the cleaning device main body 15
Although it is installed in the traveling type yarn splicing machine 11, it may be installed in a yarn splicing device equipped in each spinning unit 1, for example.

Effects As detailed above, this invention supports the rotor drive member in a rotor cleaning device in such a way that it can come into contact with and separate from the outer peripheral surface of the rotor at the engagement portion provided in a part thereof, and also By providing a pressing member that presses the joint against the outer circumferential surface of the rotor, it is possible to accurately deal with changes in rotor diameter and quickly clean the rotor. This is a preferred idea for industrial use as a cleaning device.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of this invention; Figure 1 is a side view of an open-end spinning machine showing the operating state of the rotor cleaning device, and Figure 2 is a side view of the rotor cleaning device. FIG. FIGS. 3 and 4 are side views of essential parts showing modifications of this invention, respectively. 7... Rotor, 15... Cleaning device main body, 17...
... Drive motor, 19 ... Motor shaft, 24 ... Drive shaft as rotor drive member, 27 ... Roller as engaging part, 29 ... Compression spring, 32 ... Scraper as removal member, 33 ... Brush .

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In an open-end spinning machine in which the spinning rotor can be opened and cleaned when thread breakage occurs, a cleaning device main body movable between an opposing working position and a standby position spaced apart from the rotor; a removal member for removing attached residual fibers and foreign objects; a rotor drive motor installed in the device main body; a rotor drive member movably supported by the device main body so as to be able to come into contact with and separate from the outer peripheral surface; and a pressing member that is engaged with the rotor drive member and presses the engaging portion against the outer peripheral surface of the rotor. A rotor cleaning device for an open-end spinning machine, characterized by comprising: 2. The rotor cleaning device for an open-end spinning machine according to claim 1, wherein the cleaning device main body is installed in a yarn splicing machine that is movably supported on a machine frame. 3 Either one of the motor shaft and the rotor drive member of the drive motor has a shaft joint, and the shaft joint is formed with a cylindrical portion for fitting and supporting the other so as to be movable along the motor axis. A rotor cleaning device for an open-end spinning machine according to claim 1, which is a utility model. 4. The rotor cleaning device for an open-end spinning machine according to claim 1, wherein the pressing member is a compression spring fitted to the rotor drive member. 5. The rotor cleaning device for an open-end spinning machine according to claim 1, wherein the engaging portion has an oblique peripheral surface.