JP2597786B2 - Pipe transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for conveying an object having a circular cross section, such as a steel pipe or a steel bar.

[0002]

2. Description of the Related Art Conventionally, in a pipe conveying apparatus in which a lift conveyor and a ducking conveyor are continuous, the driving systems thereof are each independent, and skew is prevented by, for example, climbing over a dog of a pipe when transferring from the lift conveyor to the ducking conveyor. It has been customary to install a stopper or the like between the conveyors in order to prevent the occurrence of pipe flaws due to the collision between the pipe and the dog and the breakage of the dog.

[0003]

In such a conventional system, a stopper is required between the lift conveyor and the ducking conveyor, and there are the following problems.

[0004] Noise generated due to the sound of collision between the pipe discharged from the lift conveyor and the buffer pipe in front of the stopper. At the time of transfer from the stopper to the ducking conveyor, several pieces are paid out at the same time, causing quality problems such as flaws due to mutual contact of pipes during transport of the ducking conveyor and uneven drying of rust preventive oil, and especially long transport distance. In this case, troubles during conveyance due to skew or the like also occur. . Since drive motors for the lift conveyor and the ducking conveyor are required, and a stopper is required between the conveyors, the equipment cost including the control device is relatively high.

The present invention is to provide a pipe transfer apparatus which has solved the problems of the prior art, is inexpensive and has solved the problems of quality, noise and transfer trouble during transfer.

That is, the present invention is to provide a pipe conveying apparatus which enables a pipe to be surely contained between dogs of a ducking conveyor in a state where pipes are arranged one by one when a pipe is transferred from a lift conveyor to a ducking conveyor. It is.

[0007]

Apparatus of the present invention According to an aspect of the Oite the feed pipe <br/> transportable lift conveyor and ducking conveyor is continuous, its Noriutsuri part, from the skid of the dog upper surface of ducking conveyor of Projection, while ensuring Noriutsuri more corresponding skid length gradient drop between both conveyor, both conveyor drive is mechanically interlocked, such that the dog of the phase of the pawl and ducking conveyor lift conveyor always the same Driving gear and drive motor and each conveyor
Between the drive shafts of the vehicle and the clutch / brake on the side of the lift conveyor, and a phase detector on the side of the ducking conveyor. When the lift conveyor starts up, the drive of the lift conveyor is driven by the phase detector .
This is a pipe transfer device having a control device that works in conjunction with the conveyor drive .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in FIGS. 1 is a side view of the apparatus according to the embodiment of the present invention, FIG. 2 is an enlarged view of FIG. 1a, and is a detailed side view of a transfer section to a lift conveyor and a ducking conveyor, FIG. 3 is a plan view of a drive section, and FIG. FIG. 5 is a side view of the drive unit viewed from the direction indicated by arrows AA in FIG. 3, and FIG.

In FIGS. 1 and 2, it is desirable that the interval A between the lift conveyor 1 and the ducking conveyor 2 is as short as possible. However, there is a problem of interference between the respective conveyor shafts 5 and 6, the conveyor claws 7 and the dog 4. Be constrained. Therefore, when transferring the pipe 8-2 from the lift conveyor 1 to the ducking conveyor 2, the pipe 8
Projection dimensions of H ₂ from the upper surface of the upper surface and the transfer skid 3 dog 4 in order to dog 4 move over prevention -2 length gradient difference dimension H delivery skid 3 corresponding to the distance A
_It is necessary to secure _one or more.

In the case of the embodiment, the interval A is 500 due to dimensional restrictions.
mm and H ₁ from the slope 1/20 of the delivery skid 3.
Is 25 mm and the delivery skid 3 on the top of the dog 4
The Projection dimensions of H ₂ from a 30 mm.

Next, the drive and control method of the lift conveyor 1 and the ducking conveyor 2 will be described with reference to FIGS. 3, 3 and 5. FIG.

The lift conveyor 1 and the ducking conveyor 2 are mechanically connected and driven by a drive motor 9. For driving the lift conveyor 1, the shaft 5 is driven via a clutch / brake 10, a speed reducer 12, and a chain 13. The driving of the ducking conveyor 2 is in front of the clutch / brake 10 in the lift conveyor drive system.
The shaft 6 is driven by the sprocket 11 via the speed reducer 14 and the chain 15.

[0013] In this case, the speed reducer 12, 14 and chain 1
The reduction ratio of 3, 15 is set so that the phase of the pawl 7 of the lift conveyor and the dog 4 of the ducking conveyor are always the same.

[0014] Also, set up a phase detector 18 for detecting the phase detection plate 17 and its projections having a number of projections corresponding to the dog pitch shaft end of ducking conveyor drive shaft 6, the lift conveyor startup phase detection plate Phase detection of 17 protrusions
Clutch and brake 10 at a timing detected by the vessel 18
Is controlled so as to connect.

[0015]

Next, the operation of the present invention will be described.

The ducking conveyor 2 has no functional problem even if it is continuously driven. However, the lift conveyor 1 has a material loading state of the pipe 8-1 in front of the lift conveyor and a skid 16 in the conveyance of the ducking conveyor 2. It is necessary to repeat starting and stopping depending on the material status of a certain pipe 8-3.

Normally, as shown in FIG.
-The pipe 8-1 in front is always present,
On the skid 16 in the transport of the conveyor 2
Step 8-3 is clogged up to point C, but upstream from point C
The pipe is not clogged and is still acceptable. This
, The clutch / brake 10 is connected and the lift
The pipe 8-2 conveyed from the conveyor is a dog
4, the dimension H ₂ from the delivery skid 3 becomes the dimension A
Make a gradient drop dimensions H ₁ or more delivery skid 3 the corresponding
The pipes pass over the dog one by one
Ducking in the dog without fail
Rolling on the inclined skid along the dog on the gconveyor
While being transported to the rear.

For example, when the pipe 8-3 on the skid 16 in the transport of the ducking conveyor 2 becomes full due to the capacity balance between the preceding and following processes, the clutch / brake 10 is disconnected and the lift conveyor stops. .

At the time of starting and stopping, there is no need to control the timing of stopping. However, at the time of starting, in order to pay out the pipe stably between the dogs, at the moment when the dog surely comes out of the upper surface of the delivery skid 3 at H ₂ = 30 mm,
Need to receive a pipe. If the timing is changed, the dog may or may not get over the dog arrangement in the pipe length direction, which may cause skew.

In order to stably deliver the pipe between the dogs, it is necessary to connect the pawl 7 of the lift conveyor and the dog 4 of the ducking conveyor so that the phase is always the same at an appropriate position. Lift conveyor claw 7 rises
And the delivery skid 3 at a position like the pipe 8-2.
At the time of delivery, the pipes pass over the delivery skid 3
Rolls naturally in the direction of the dog due to the skid gradient.
When the pipe 8-2 comes to the position where it collides with the dog, the dog
The transfer dimension H ₂ from the delivery skid 3 is
Connection timing between the conveyor 2 and the lift conveyor 1
Depends on Depending on the connection timing,
In some cases, it may vary from 0 to 30 mm.
You. At 0mm the pipe gets over the dog and at 30mm
Has no problem over the dog, but halfway through
If a collision occurs at an extreme point, for example, about 15 mm,
This causes transport troubles such as That is,
Ducking conveyor 2 is a long pipe when viewed in a plane
The direction is arranged in several lines at a pitch of 1 to 3 m. Ma
Also, slight bending in the length direction of the pipe, bending due to its own weight
In the presence of a collision at about 15 mm
In the case, one of the ends of the ducking conveyor rides dog 4
In some cases, the number of other articles may not be exceeded. In that state
When rolling on the skid 16, the pipe is skewed surely
However, it may cause transport trouble.

At this time, the clutch / brake 10 is connected by the control device 19 at an appropriate timing by the pawl 7 installed at the end of the driving shaft 6 of the ducking conveyor and the phase detector 18 of the dog 4 , so that the original position is reliably returned. It is possible to do. The original position is the same as the position of the pawl 7 of the lift conveyor 1
The position of the dog 4 on the feeding conveyor 2 is
Delivery of dog 4 when 2 comes to the position where it collides with the dog
Projection dimensions H ₂ is 0mm or 30mm from the skid 3
Means the position.

The lift conveyor according to the present invention is not limited to the one described above, and the same effect can be obtained by a rotating device such as a star wheel type. The same effect can be obtained even when the ducking conveyor is replaced with a normal chain conveyor with claws.

[0023]

As described above, according to the apparatus of the present invention, in a pipe conveying apparatus in which a lift conveyor and a ducking conveyor are continuous, it is possible to reliably supply pipes to the ducking conveyor and eliminate pipe collision noise. No quality problems such as flaws and uneven drying of rust preventive oil due to mutual contact of pipes during transport of the ducking conveyor are eliminated, and transport troubles due to skew or the like can be prevented. Further, only one drive motor is required, and a stopper is not required, so that the above effects can be obtained at low cost, and the practical effect is extremely large.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus according to an embodiment of the present invention;

FIG. 2 is an enlarged side view of a transfer section to a lift conveyor and a ducking conveyor in an enlarged view of FIG. 1a,

FIG. 3 is a plan view of a driving unit,

FIG. 4 is a side view of the lift conveyor driving section taken along the line AA in FIG. 3;
Arrow view,

FIG. 5 is a side view of the ducking conveyor driving unit, and FIG.
-B arrow view,

FIG. 6 is a diagram showing a clutch and brake ON / OFF timing control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lift conveyor 2 ... Ducking conveyor 3 ... Delivery skid 4 ... Dog 5 ... Lift conveyor shaft 6 ... Ducking conveyor shaft 7 ... Claw 8-1, 8-2, 8-
DESCRIPTION OF SYMBOLS 3 ... Pipe 9 ... Drive motor 10 ... Clutch brake 11, 13, 15 ... Chain 12, 14 ... Reducer 16 ... Skid 17 ... Phase detection plate 18 ... Phase detector 19 ... Clutch, brake ON / OFF timing control device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Fumihiko Niiyama 1 Kimitsu, Kimitsu City Nippon Steel Corporation Kimitsu Works (72) Inventor Hiroshi Tokugawa 2-1-1-15 Edamitsu Hachiman-ku, Kitakyushu-shi Hikaru Mishima Co., Ltd. (72) Inventor Tomoyuki Tanaka 2-1-1-15 Emitsu, Yawatahigashi-ku, Kitakyushu-shi Mishima Kosan Co., Ltd.

Claims (1)

(57) [Claims] 1. A Oite the feed pipe transportable lift conveyor and a ducking conveyor is continuous, its Noriutsuri unit,
As for the allowance from the skid on the dog upper surface of the ducking conveyor, the transfer skid length gradient drop between the two conveyors must be equal to or greater than the equivalent, and both conveyors must be driven mechanically.
Interlocking is established a reduction gear such that the dog of the phase of the pawl and ducking conveyor lift conveyor always the same between the drive motor and the conveyor drive shaft, further clutch and brake is installed on the lift conveyor side, ducking the conveyor side by installing a phase detector, a pipe conveying apparatus characterized by having a control device, such as a lift conveyor drive works with ducking conveyor driven by the lift conveyor startup the phase detector.