JPH0745302B2 - Cylindrical alignment device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a centering device for a cylindrical body, and more particularly to a coil such as a steel plate or paper, or a cylindrical article such as a machined product or a forged or cast product. The present invention relates to a centering device that is convenient when performing centering on the transport line.

[Prior Art] Conventionally, for example, when a coil of a steel sheet is transported by a walking beam or the like, the coil is generally loaded and loaded into the transport facility by a coil car, an overhead crane, or another transfer device. However, since the coil is not centered in the width direction, it is very disadvantageous when binding, packing, or handling. That is, in order to prevent the coil from falling, it is necessary to enlarge the coil receiver, which is complicated and costly.

When unloading with a coil lifter, it is necessary to increase the pawl opening in anticipation of a core misalignment, but this makes the coil lifter large and narrows its operating range.

In a binding machine for packing equipment, when fixing a corner protector of a coil, it is necessary to bind the coil corner protector to a certain size from the end surface of the coil. Therefore, if there is a misalignment in this case,
The binding machine must have a function of detecting the actual coil end face each time.

In packaging equipment, it is difficult to match the width of the packaging paper and the peripheral iron plate. Therefore, many parts are wasted.

Due to the above, it is necessary to align the coil, but if this is done during loading and loading of the coil by a coil car, overhead crane, or other transfer machine, it will take a lot of time and time to align the coil, and the cycle There is a problem that the time becomes long.

[Problems to be Solved by the Invention] Therefore, in order to solve the above-mentioned conventional problems, the present invention does not affect the cycle time even when incorporated into a transfer facility, and has a reliable and simple configuration. The purpose of the present invention is to obtain an aligning device.

[Means for Solving Problems] A cylindrical body aligning apparatus according to the present invention has a movable table on which an object of a cylindrical body is loaded and which moves horizontally in the width direction of the object, and a moving table on the movable table. A contact type sensor device having a pair of synchronously moving sensor arms for contacting an outer surface in the width direction of a loaded object and detecting the center position in the width direction, wherein the pair of sensor arms is the object The movement of the moving table is stopped when the outer surfaces of the moving table are simultaneously contacted.

Further, a preferred embodiment of the present invention is to make the sensor arm foldable so that the sensor arm does not get in the way when the object is unloaded.

[Operation] In the cylindrical centering device according to the present invention, the pair of sensor arms synchronously move with respect to the object loaded on the moving table so as to hold the object, and the width direction of the object is increased. Contact the outer surface of. In that case, when one of the sensor arms comes into contact with the other side, the moving table is moved to the other side, which is not in contact, by detecting the side where the one of the sensor arms comes into contact first with a limit switch. Stop its movement. Thereby, the centering of the cylindrical object in the width direction can be performed.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view of a moving table, FIG. 3 is a plan view showing one side portion thereof, and FIG.
FIG. 5 is a plan view of the contact type sensor device, and FIG. 5 is a side view thereof.

In this embodiment, the aligning device according to the present invention is installed on the exit side of the walking beam type transfer device 10. In the figure, reference numeral 12 is a moving table for loading the coil 1, which can be horizontally moved in the same direction a as the carrying direction c and in the opposite direction b, that is, in the width direction of the coil 1. The structure of the moving table 12 is shown in detail in FIGS. 2 and 3.

Next, the contact-type sensor device 14 according to the present invention is attached to the machine casing 11, and the pair of sensor arms 15 and 16 are attached so as to contact the outer surface of the coil 1 in the width direction. The structure of the contact type sensor device 14 is shown in detail in FIGS. 4 and 5.

In FIGS. 2 and 3, the moving table 12 is a coil receiver.
It is composed of a pair of right and left pedestals 18 having 13. Second
The drawing shows a state in which the largest coil 1a and the smallest coil 1b are stacked. Further, each cradle 18 has support rollers 21 and 22 that roll along a lower guide rail 19 and side guide rails 20 arranged in the machine frame 11 in parallel with the conveying direction.
The guide rollers 23 and 24 move the guide. Driving of each cradle 18 is performed by a cylinder device 25 connecting the cradle 18 and the machine frame 11 as shown in FIG.

Next, in FIGS. 4 and 5, a folding type is shown as an example of the contact type sensor device 14. This sensor device
Reference numeral 14 denotes a curved arm 29, 30 having a main body 26 attached to the machine frame 11 and fan gears 27, 28 meshing with the main body 26.
Each of which is pivotally attached by a pin 31 and each arm 2
Sensor arm 15,1 having contact roller 32 at the tip of 9,30
6 is attached so as to rotate in the vertical direction about a shaft 33. Further, one arm 29 is provided with a connecting piece 34 so as to project, and the connecting piece 34 and the main body 26 are connected by a cylinder device 35 so that the arms 29 and 30 are rotated synchronously.

Further, each sensor arm 15, 16 is pivotally attached to the frame 37 by a pin 36 at its intermediate portion, and dogs are provided at the base ends thereof to open and close the limit switches 38, 39, respectively, and a return spring 40 is provided. It is installed between the frame 37. The frame 37 has its base end attached to each of the arms 29, 30 via a shaft 33, and the cylinder device 41 is provided to further fold the sensor arms 15, 16 in the vertical direction by using the frame 37. It is interposed between each frame 37 and each arm 29, 30.

Next, the operation of the above embodiment will be described.

As shown in FIG. 1, when the coil 1 is transferred by the walking beam type transfer device 10 and loaded on the moving table 12 at a predetermined position, a pair of sensor arms 1 of the sensor device 14 is provided.
When the rod 41a of the folding cylinder device 41 is extended, the frames 5 and 16 rotate the frame 37 downward and are extended in a straight line so as to be positioned on both sides of the coil 1. Next, when one arm 29 is swung around the pin 31 by the extension of the rod 35a of the swiveling cylinder device 35, the sector gear 27 provided at the base end of the arm 29 causes the sector gear 28 of the other arm 30 to rotate. Are meshed with each other, the turning of one arm 29 causes the other arm 30 to simultaneously turn in synchronization.

By the way, since the coil 1 is loaded on the moving table 12 without adjusting the centering in the width direction, when the pair of sensor arms 15 and 16 synchronously rotate as described above, the coil 1 moves on the moving table 12. On the other hand, the front side sensor arm 15 contacts the coil side surface first when the front side is loaded, and the rear side sensor arm 16 first contacts the coil side surface when the rear side is loaded. Therefore, this contact causes the respective sensor arm 15 or 16 to rotate around the pin 36, and the dog at the base end is mounted on the frame 37.
Or turn ON 39. This limit switch 38 or 39
Drive cylinder device of the moving table 12 in response to the closing signal of
Each movement in the backward direction b or the forward direction a is performed on 25. This operation is performed by switching the solenoid valve (not shown) of the drive cylinder device 25 in each direction. That is, when the front-side sensor arm 15 first comes into contact, the moving table 12 is retracted, whereby the other sensor arm 16 comes into contact with the limit switch 39.
Continue retreating until is turned on. Both sensor arms 15,1
Since 6 rotates in the direction sandwiching coil 1, the time until both limit switches 38, 39 are turned on is extremely short. Therefore, when both limit switches 38 and 39 are both turned ON, the supply of fluid pressure to the drive cylinder device 25 is stopped and the moving table 12 is stopped. At this point, the center of the coil 1 in the width direction is positioned and the alignment is completed. Also,
When the rear side sensor arm 16 first comes into contact, the procedure is exactly the same as the above except that the moving table 12 is moved in the opposite direction. Finally, after separating both sensor arms 15 and 16 from the coil 1, both sensor arms 15 and 16 are again folded upward, and the coil 1 which has been aligned is transferred to the next step, for example, the packing step.

In this way, the above alignment operation can be completed within the range of one cycle time of the walking beam.

Next, FIG. 6 shows another embodiment of the contact type sensor device 14, and is a plan view of a non-folding type. Both sensor arms 15 and 16 remain straight, so that arm 2 above
The 9, 30 and frame 37 have the same structure as the above-mentioned embodiment except that they are integrally structured, and therefore, the same reference numerals are given and the description thereof is omitted.

In the above embodiment, the case where the limit switch is used for detecting the contact position with the coil outer surface of the sensor arm has been described, but other detectors (non-contact type limit switch, photoelectric element, etc.) may be used. Good.

Further, the synchronous rotation mechanism of the sensor arm is not limited to the case of the gear, but a link mechanism or other ordinary means can be used.

[Effects of the Invention] As described above, according to the present invention, a pair of sensor arms are synchronously moved and brought into contact with the outer surface in the width direction of a cylindrical body loaded on a moving table, and the front and rear of the contact are simultaneously performed. Since the center is adjusted by moving the moving table so as to be in contact with each other, the cycle time of centering is short and accurate centering can be performed. Further, since it has a relatively simple structure, it has a great effect such that it can be manufactured at a low cost and can be easily incorporated into a transfer facility.

[Brief description of drawings]

1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view of a moving table according to the present invention, FIG. 3 is a plan view showing one side of the moving table, and FIG. 4 is a contact type sensor according to the present invention. FIG. 5 is a plan view of the device, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a plan view showing another example of the contact type sensor device. 1 …… Cylinder 12 …… Movable table 14 …… Contact type sensor device 15,16 …… Sensor arm

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-49-80466 (JP, A) JP-A-54-125365 (JP, A) JP-A-58-44916 (JP, A)

Claims (2)

[Claims] 1. A moving table on which an object is loaded and which moves horizontally in the width direction of the object, and a center position in the width direction of the object that contacts the width-direction outer surface of the object loaded on the moving table. A contact-type sensor device having a pair of sensor arms for synchronously detecting the movement of the movable table, and stopping the movement of the moving table when the pair of sensor arms simultaneously contact the outer surface in the width direction of the object. A centering device for cylindrical bodies. 2. The cylindrical centering device according to claim 1, wherein the pair of sensor arms are foldable.