JPS5932207B2 - Kickout device for piercer or reeler exit table - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a kickout device for a piercer or reeler exit cheeple.

The exit cheeple of the piercer or reeler in the Mannesmann plug mill system is the piercer 1 (
Roller 2 for transferring the rolled pipe a exiting the reeler
, 2, and a kick-out device A for sending the rolled pipe on the transfer roller 2.2 to the next process line. Star wheels 5, 5 are attached at appropriate intervals to the drive shaft 3 supported by the bearings 4, 4, and the star wheel 55 is rotated by rotationally driving the drive shaft 3 by a drive device (not shown). Then, the rolled pipe a on the transfer rollers 2, 2 is lifted by the star wheels 5, 5 and sent out in the direction of the arrow.

By the way, in the exit cheeple as described above, the rolled pipe coming out of the piercer or reeler is transferred to the end of the exit cheeple regardless of its length, and if the length of the rolled pipe is short, it is transferred to the rear end of this pipe. The pipe is sent to the next process line by rotating only the necessary star wheels without rotating the star wheels located outside the kick-out device, but conventional kick-out devices do not require a drive shaft. The drive shaft of the star wheel, which is always used for sending out the pipe regardless of the length of the pipe arranged from near the center of the exit cheeple to the end of the pipe, is divided into several parts and each shaft is connected with a claw clutch. The shaft to which the starwheel is attached on the front side of the outlet cheeple (piercer or reeler side), which is connected to that drive and is not used all the time and is used only when pipe lengths are long, rotates this starwheel. Only if necessary, use the above drive shaft (or the preceding shaft connected to the drive shaft)
Since the above-mentioned claw clutch is used to connect the clutch, there is play in the clutch, which not only makes it impossible to rotate the star wheels attached to each shaft with accurate timing, but also causes damage to the clutch. It had maintenance drawbacks, such as frequent breakdowns.

This invention was made in view of these circumstances, and its purpose is to
The drive shaft is a single shaft that is not divided, and a star wheel, which is not always used and is used only when the length of the pipe to be rolled is long, is attached to one drive shaft so that it can be connected and released as necessary. An object of the present invention is to provide a kickout device for a piercer or drill puller, which has a simple configuration and is advantageous in terms of maintenance, in which only the required star wheel can be rotated by one drive shaft. .

Hereinafter, an example of a plane of the present invention will be explained based on the drawings.

In FIG. 2, 3 is a drive shaft disposed in the length direction of the outlet cheeple, 4 is its bearing, 5a is a star wheel that is always used for feeding out the pipe regardless of the length of the pipe to be rolled, 5
b is a star wheel disposed on the front side of the outlet cheeple that is not always used and is used only when the pipe length is long; the former star wheel 5a is fixed to the drive shaft 3; The latter star wheel 5b is attached to the first drive shaft 3 so as to be able to be coupled to and released from it as required.

That is, in FIGS. 3 to 6, 6 is a flanged bush fitted to the drive shaft 3, 7 is a sleeve fitted to the drive shaft 3, and 8 is the sleeve 7 and the flanged bush. The latter star wheel 5b is an intermediate piece that holds the flanged bushing 6 between the flanged bushing 6 and the flanged bushing 3a provided on the drive shaft 3 interposed between the two. , are rotatably coupled to each other while being restrained in the axial direction via the flanged bushing 6.

Reference numeral 9 denotes a boss portion that protrudes from the star wheel 5b so that its end face approaches the sleeve 7, and the outer periphery of the boss portion 9 and the outer periphery of the sleeve 7 on the boss portion side are engaged with gears of the same shape. It is formed at the joining parts 9a and 7a.

10 is a cylindrical body fitted to the outside of the sleeve 7 so as to be movable in the axial direction thereof, and 10a is meshed with both the gear-like retaining parts 7a and 9a formed on the inner periphery of the cylindrical body 10. The cylindrical body 10 is a gear-like retaining part, and is adapted to be moved by a shift mechanism 11 and removably engaged with the boss part 9.

The shift mechanism 11 includes a ring 13 that is loosely fitted into a circumferential groove 12 provided on the outer circumference of the cylindrical body 10 so that movement in the axial direction is restrained, and pins 14 and 14 on both sides of the outer circumferential surface of the ring 13.
At the same time, fork levers 17 and 17 are fixed to both ends of the rotating shaft 16 supported by the bearing 15 supported on the bearing stand 4a of the drive shaft 3 via the support member 15a. 17, 17 are respectively engaged with the above-mentioned pins 14 and 14, and further the above-mentioned rotating shaft 16
This rotating shaft 16, that is, the fork lever 17.
A piston rod 19a of a fork lever rotating cylinder 19, in which one end of a rotating arm 18 for rotating the fork lever 17 is fixed, and the other end of this rotating arm 18 is pivotally supported on the bearing stand 4a.
It is constructed by being pivoted to.

Further, 20 is a stopper rod that is moved toward and away from the star wheel 5b by the operation of the cylinder 19, which is provided at the piston rod pivot end of the rotating arm 18 and protrudes toward the star wheel 5b side. A stopper mechanism 22 that is a protrusion that is engaged with the stopper rod 20 protruding from the side surface of the star wheel 5b, and that uses this protrusion 21, the stopper rod 20, and the cylinder 19 to stop the star wheel 5b in a fixed position. is configured.

The kick-out device configured as described above drives the star wheel 5b located at a position away from the rear end of the pipe depending on the length of the pipe to be rolled, when sending the pipe from above the exit cheeple to the next process line. The star wheel 5b is in a free state with respect to the shaft 3 and is in a position facing the pipe.
is connected to the drive shaft 3, and the drive shaft 3 is rotated by 180 degrees by a drive device (not shown) provided at the end of the outlet cheeple. and a star wheel 5b,
These star wheels 5a are rotated 180 degrees with a star wheel 5a that is always used regardless of the length of the pipe and is arranged from near the center of the outlet cheeple fixed to the drive shaft 3 to the terminal end.

5b, the pipe is sent out from above the exit cheeple to the side thereof, and the star wheel 5b
To disengage the piston rod 1 with respect to the drive shaft 3, operate the fork lever rotation cylinder 19 to move the piston rod 1
9a, and rotate the rotating arm 18 and fork lever 17, which are integrally attached to the rotating shaft 16, counterclockwise in FIG. 3 to engage the fork lever 17 and the pin 14. ring 1 which is
3, the cylinder body 10 is moved in a direction away from the star wheel 5b, and the boss portion 9 of the star wheel 5b and the cylinder body 10 engage with each other, that is, the mutual gear-like engaging portions 9a, 1
The star wheel 5b, which is released from the drive shaft 3 in this manner, is provided with a stopper rod 20 provided on the star wheel 5b, which is pushed out by the rod pushing operation of the cylinder 19. By engaging with the protrusion 21 and stopping the star wheel 5b in a fixed position, it remains stationary at the same position even if the first drive shaft 3 rotates.

In addition, each of the above-mentioned star wheels 5a. 5b has a shape in which a pair of pipe receiving portions are provided at an angle of 180° as shown in FIG. The star wheels 5a and 5b rotated together with 3 are stopped in the same posture as the star wheel 5b that was not rotated.

In addition, when the length of the pipe to be delivered is long and the star wheel 5b, which has been left in a free state with respect to the drive shaft 3, is to be rotated, the cylinder 19 is moved in a rond retracting motion to reverse the above-mentioned operation. Therefore, the cylinder body 10 is engaged with the boss portion 9 of the star wheel 5b, and the stopper rod 20 is moved back to release the lock of the star wheel 5b.
The sleeve 7 fixed to the drive shaft 3 via the boss portion 9 and the boss portion 9 are coupled to rotate integrally by engagement of the gear-like engaging portions 7a, 9a, and 10a.

In the above example, the outer part 10, the sleeve 7, and the boss part 9 are engaged by gear engagement, but this may be done by spline engagement.

Since this invention is made as described above, it is possible to rotate only the necessary star wheel by pointing the star wheel into one shaft without dividing the drive shaft, and also to rotate the star wheel that is not used by the stopper mechanism. By fixing the star wheel in a fixed position, when this star wheel is connected to a drive shaft and rotated, it can be rotated while accurately matching the timing of other star wheels. The structure is simple and there are few failures, so it is advantageous in terms of maintenance.

[Brief explanation of the drawing]

Is Figure 1 the Piasa or Leela exit tape? FIGS. 2 to 6 are schematic plan views showing an example of the present invention. FIG. 2 is a front view, and FIGS. 3 and 4 are partially enlarged views. A front view and a side view, and FIGS. 5 and 6 are a longitudinal sectional front view and a longitudinal sectional side view showing further enlarged mechanical parts for coupling and releasing the star wheel to and from the drive shaft. 3... Drive shaft, 5a, sb... Star wheel, 7... Sleeve, 9...
・Boss part, 10... Cylindrical body, 7a, 9a, 10a
...Gear-like engagement part, 11 ... Shift mechanism, 13 ... Ring, 14 ... Pin,
17... Fork lever, 18... Rotating arm, 19... Fork lever rotating cylinder, 20... Stopper rod, 21...・
Projection, 22... Stopper mechanism.

Claims (1)

[Claims] 1 Among the star wheels attached to the drive shaft, those that are not always used are rotatably fitted to the drive shaft, and this star wheel is provided with a boss portion with a retaining portion formed on the outer periphery, and A sleeve is fitted onto the shaft in close proximity to the boss portion and has an engaging portion that is the same as the aforementioned engaging portion on the outer periphery of the boss portion side, and is further fitted on the outside of this sleeve and engages with both of the retaining portions on the inner periphery. A cylindrical body having an engaging portion that engages with the boss portion and that is moved in the axial direction by a shift mechanism to removably engage with the boss portion is fitted, and the cylindrical body is interlocked with the shifting operation of the cylindrical body in the shift mechanism. A kick-out device for a piercer or a reeler exit cheeple, characterized in that a stopper mechanism is attached for stopping the star wheel in a fixed position.