JPH0545693B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for feeding an empty tube or a thinly wound tube to a tube chuck of a winding device.

(Prior art and its problems) In general, as a device for supplying empty tubes or thin thread-wound tubes to a plurality of winding devices installed along the longitudinal direction of the machine base, for example,
It is described in Japanese Patent Application Laid-open No. 15524/1983.

The tube feeding device described in the publication is
A movable arm having a tube gripper is rotatably attached to a traveling carriage.

In the tube feeding device as described above, the tube gripper moves on an arcuate trajectory, so if the axis of the tube chuck of the take-up device and the tube gripper of the tube feeding device do not match, the bochin cannot be fed reliably. Can not.

Therefore, the parts constituting the winding device are assembled by high-precision processing, and the winding device is attached to the machine base without any errors. Further, the tube feeding device is installed at a constant distance from each winding device.

Therefore, we use high-precision processing machines, advanced processing,
There was a problem in that it required workers with assembly skills and a lot of working time.

(Purpose) The present invention has been studied for the purpose of solving the above-mentioned problems and providing a device that can reliably feed tubes even if there are variations in the axial center position of the tube chuck of a winding device. This is the result obtained.

(Means for Solving the Problems) That is, the present invention connects a first movable arm having a tube gripper to a second movable arm rotatably mounted on a truck.
a first abutting member rotatably attached to the movable arm and abutting a rotation regulating member installed on the cradle support portion of the winding device on the first movable arm;
The present invention provides a tube feeding device in which second movable arms are respectively fitted with second abutting members that abut against the circumferential surface of a tube chuck of a winding device.

(Example) The configuration of an example of a doffing machine equipped with a tube feeding device of the present invention will be described based on the drawings.

Reference numeral 1 denotes a machine base on which a drive roller 31 and a winding device 32 are installed, and a tray 33 for temporarily storing a fully wound tube is installed below the winding device 32. The winding device 32 described above includes a cradle 35 on which a tube chuck 36 is rotatably mounted, and a bracket 34 on which the cradle 35 is rotatably mounted via a shaft 37 and attached to the machine base 1.
The hollow tube 40 attached to the tube chuck 36 is brought into contact with the drive roller 31 with a predetermined surface pressure. Reference numeral 2 denotes a cart that runs along rails 1a and 1b formed on the machine base 1, and is moved by a drive device (not shown) and stops at a predetermined doffing position of the winding device. There is. 3 is a drive device such as a pulse motor, a DC servo motor, or a fluid cylinder, rack, and pinion mechanism, and a link 4 is attached to an output shaft 3a. 6 has the end connected to link 4 by pin 5.
The first movable arm is connected to the first movable arm, and a receiver 10 for holding a fully wound tube 41 is attached to the other end. A part of the first movable arm 6 is formed of a thin plate-like body 6a, and is adapted to absorb dimensional errors in the longitudinal direction of the tube by elastic deformation, and to restrict the rotation range of the first movable arm 6. A seat portion 6b is formed to correspond to the first abutting member. Reference numeral 8 denotes a link whose end is connected to approximately the center of the first movable arm 6 by a pin 7, and whose other end is attached to a bearing 9 installed on the truck 2. 11
is a drive device such as a rotary actuator or a DC servo motor attached to the end of the first movable arm 6 in a position close to the receiver 10, and a second movable arm 6 is attached with a gripper 13 for grasping the empty tube. An arm 12 is attached to the output shaft. A second abutting member 19 is attached to the gripper 13 and comes into contact with the circumferential surface of the tube chuck 36 of the cradle 35. Reference numeral 14 denotes a screw body screwed onto the bracket 34 that supports the cradle 35, so that the seat portion 6b formed on the first movable arm 6 comes into contact with the bracket 34 and the rotation range of the first movable arm 6 is restricted. It's getting old. Then, the protrusions of each winding device 32 are adjusted so that the axes of the empty tube 40 gripped by the gripper 13 and the tube chuck 36 of the cradle 35 coincide when the seat portion 6b abuts the screw body 14. The screw body 14 can also be screwed into the position of the seat portion 6b of the first movable arm 6, and in this case, the seat portion is formed on the bracket 34. 15 is a fluid cylinder installed on the truck 2, and a cradle operating arm 16 is connected to the piston rod via a metal fitting 18. An end of the cradle operating arm 16 is rotatably attached to the cart 2, and a roller 17 is attached to the other end.

The above-mentioned drive device, fluid cylinder, etc. are controlled by a control device (not shown) having an operation setting input circuit, a memory circuit, a comparison calculation circuit, an operation command circuit, etc.

The operation of supplying empty tubes by the doffing machine described above will be explained.

First, the cart 2 is moved to the empty tube supply position of each winding device 32, and the second contact member 19 attached to the gripper 13 comes into contact with the circumferential surface of the tube chuck 36 of the cradle 35, and then the first
The seat portion 6b, which is the first contact portion of the movable arm 6, is connected to the screw body 1.
The amount of protrusion of the screw body 14 is adjusted so that the axes of the empty tube 40 and the tube chuck 36 are aligned with each other. Set and input the operation order.

Once the above preparations are completed, the winding operation begins.
Then, a preset amount of yarn is inserted into the tube 40.
As shown in FIG.
When the third doff, the drive device 11 operates and the fifth
As shown in FIG.-1, the second movable arm 12 is rotated counterclockwise. When the second movable arm 12 is rotated to a predetermined position, the drive device 3 is activated and the link 4 is rotated clockwise as shown in FIG. The empty tube 40 thus formed is moved to the tube chuck 36 of the cradle 35 through a trajectory that does not interfere with the full tube on the tray 33. As shown in FIG. 5-3, when the empty tube 40 comes to the tube chuck 36 portion of the cradle 35, the gripper 1
The second abutting member 19 attached to the cradle 3 abuts against the tube chuck 36 of the cradle 35, but the link 4 and the first movable arm 6 continue to be rotated by the drive device 3. Therefore, the second movable arm 12 also tries to rotate, but since the second abutting member 19 is in contact with the tube chuck 36, it cannot rotate any further. On the other hand, the drive device 11 is in a non-operating state and is in a state where it can freely rotate when the output shaft is rotated by an external force. Therefore, with the second contact member 19 in contact with the circumferential surface of the tube chuck 34, the second movable arm 12 rotates clockwise about the output shaft of the drive device 11 as a fulcrum, and together with the first movable arm 6. is moved downward. Next, when the seat 6b of the first movable arm 6 comes into contact with the screw body 14 screwed onto the support bracket 34 of the cradle 35, the second movable arm 12 is stopped at that position together with the first movable arm 6. Ru. At this time, the axis of the empty tube 40 gripped by the gripper 13 and the axis of the tube chuck 36 of the cradle 35 coincide. The empty tube 40
When the axis alignment operation is completed, a cradle operating mechanism (not shown) installed on the carriage 2 is activated to reduce the cradle 32 in the longitudinal direction of the tube, and the empty tube 40 is gripped by the tube chuck 36. , the grip by the grippers 13 is released. After the empty tube 40 has been supplied, the drive device 3 is activated, the link 4 is rotated counterclockwise as shown in FIG. 5-4, the movable arm 6 is moved to the standby position, and the drive device 11 is activated, the gripper 13 is rotated together with the second movable arm 12 and returned to the standby position. At this time, the grippers 13 are in an open state. When the operation of supplying the empty tube 40 to the cradle 35 is completed, the body supply path is switched, the piston rod of the fluid cylinder 15 is protruded, the cradle operation lifting arm 16 is rotated downward, and the empty tube 40 is transferred to the driving roller 31. is brought into contact with. When the empty tube 40 is rotated at a predetermined speed, the yarn is wound around the yarn.

When the above-mentioned operation of supplying the empty tube 40 is completed, the drive device (not shown) of the trolley 2 is operated and the empty tube 40 is moved to the empty tube supply section (not shown) installed at the end of the machine platform 1. . Then, the drive device 3 is activated, the link 4 is rotated counterclockwise, and the first movable arm 6 is moved to a predetermined position. Next, the drive device 11 operates to move the gripper 1 together with the second movable arm 12.
3 is rotated and moved to the empty tube 40 feeding position, the gripper 13 is closed and the empty tube 40 is gripped. Then, when the drive devices 3 and 11 are activated and the movable arm 6 and the second movable arm 12 are returned to the standby position, they are moved toward the next doffing target winding device.

(Effects of the Invention) As described above, the present invention includes a second movable arm having a tube gripper rotatably attached to a first movable arm rotatably attached to a truck, and A first abutting member that abuts a rotation regulating member installed on the cradle support portion of the winding device is attached to the second movable arm, and a second abutting member that abuts the circumferential surface of the tube chuck of the winding device is attached to the second movable arm. As a result, even if there is variation in the tube chuck of the cradle of the take-up device, the current position of the rotation regulating member installed on the cradle support portion of the take-up device and the first section member attached to the first movable arm can be maintained. You can align the axes of the tube chuck and the empty tube by simply adjusting the can be reliably supplied.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing one embodiment of a doffing machine having a tube feeding device of the present invention. FIG. 2 is a view taken along the Z arrow in FIG. FIG. 3 is an enlarged schematic diagram of the gripper section. FIG. 4 is a schematic plan view showing the gripper positioned on the tube chuck portion of the cradle. FIG. 5 is a schematic diagram showing the empty tube supply operation by the tube supply device of the present invention. FIG. 6 is a schematic front view showing another embodiment of the tube feeding device of the present invention. 1: machine base, 2: trolley, 3, 11: drive device,
4, 8: link, 5, 7: pin, 6: first movable arm, 9: bearing, 10: receiver, 12: second movable arm, 13: gripper, 14: screw body, 15: fluid cylinder, 16 : Cradle operating arm, 1
7: roller, 19: second contact member, 31: drive roller, 32: winding device, 33: tray, 34: bracket, 35: cradle, 36: tube chuck.

Claims (1)

[Claims] 1. A second movable arm having a tube gripper is rotatably attached to a first movable arm rotatably attached to a trolley, and a second movable arm is attached to the first movable arm at a cradle support portion of a winding device. A tube feeding device characterized in that a first abutting member that abuts a rotation regulating member and a second abutting member that abuts a circumferential surface of a tube chuck of a winding device are attached to a second movable arm, respectively.