JPS62222912A - Walking beam type coil conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to the equipment arrangement of steel manufacturing equipment that handles strip strips, and in particular, to supplying raw materials to the equipment in the form of coils and removing products from the equipment. The present invention relates to iron manufacturing equipment suitable for conducting the process in the form of a wound coil.

[Background of the invention]

The arrangement according to the prior art is introduced in the 3rd edition of Steel Handbook, Hitachi Review Vol. 67 No. 4, the arrangement of coil force is introduced in Japanese Patent Application No. 52-72016, and the coil conveyance equipment is introduced in Japanese Patent Application No. 55-4047. be. Details of the conventional arrangement will be explained below.

As an example of the equipment arrangement of conventional steelmaking equipment, the planar arrangement of a six-layer quadruple rolling equipment is shown in FIG. 7, and the side arrangement is shown in FIG. 8.

On the entry side of the rolling equipment, the coil 1 carried by a crane or forklift is placed at a non-coil position, point a, on the entry coil conveyor 2, and by the operation of the entry coil conveyor 2, the coil 1 is moved at every pitch as shown in the figure. It is transported to the rolling mill 6 side.

The coil is moved upwards from the coil that is already ready to run at the intersection of the moving direction center of the inlet coil conveyor 2 and the pass center point of the rolling mill, and is stopped at the middle position C of the payoff reel at the intersection due to the coil force 3. , the strip is taken out from the coil, the tip of the strip is taken care of, and the coil being unwound on the payoff reel 4 is finished rolling and the payoff reel 4 is emptied.

In this example, the payoff reel 4 is a double mandrel type, and when there is no coil being unwound on the payoff reel 4, the waiting coil is moved to the payoff reel 4 by the coil force 3.
The coil is guided to the center of the mandrel of the payoff reel 4, the mandrel of the payoff reel 4 is closed toward the center of the path, and the mandrel is expanded to press the coil onto the payoff reel 4.

The strip taken out at the standby position point C passes through the entry side deflector roller 5 and the rolling mill 6 group, undergoes a predetermined processing operation, passes through the exit side deflator roller 7, and is again wound into a coil by the winder 8. It will be done.

On the other hand, on the exit side of the rolling mill, the coil wound on the winding drum by the winder 8 is placed on a coil force 10, and the coil force 1
0, the coil is carried to the midpoint C between the winding drum 9 and the center of the output coil conveyor 10, and the coil is conveyed to the center of the output coil conveyor 10.
After being raised to a predetermined position where it is convenient to move, the coil force 10 travels again and reaches the intersection d between the center of travel of the coil force 10 and the center of the output coil conveyor 11, and the output coil conveyor 11 By operating the coil, the coil is transferred onto the output coil conveyor 11. The coils on the output coil conveyor 11 are transferred one pitch at a time, and are usually transported to the next process by a crane or hoist at a point e.

These are the coil conveyor, coil force, payoff reel, and winding machine that handle the rolled material in this series of rolling equipment.

Among these, the payoff reel and winding machine are used to unwind and wind the coil itself, and rather, the specifications of the machine are determined by the rolling performance specifications of the rolling equipment, but the coil conveyor and coil force are simply coil coils. must be handled more rationally and without waste.

From this point of view, the conventional technology regarding the coil conveyor and coil force on the exit side will be explained.

A walking beam type coil conveyor, which has a simple mechanical structure and is easy to maintain, is often used, and its structure is shown in FIG. This figure shows an example of receiving a coil from a coil force and delivering a coil to a coil force.

FIG. 10 shows a view taken along the line X--X in FIG. 9. Figure 11 explains the operation of the walking beam type coil conveyor.
Figure 2 shows a conceptual diagram comparing the operation of a walking beam type coil conveyor, the energy required for operation, and the energy actually consumed.

FIG. 9 shows that after the coil force 10 stops at the intersection of the traveling center of the coil force 10 and the center of the output coil conveyor, the beam 13 of the output coil conveyor completes its movement toward the coil conveyor 3, and from now on, the cylinder 14 is extended and the coil is moved to riff 1.

The movable beam 13 is supported by a roller 16 attached to a lever 15, and the lever 15 is rotated about a bin 17 by a cylinder 14. This action changes the height of the roller 16 from the pin 17; if the cylinder 14 is now extended, the roller 16 will be in a higher position, and therefore the movable beam 13 will be in a higher position.
also rises, and finally lifts the coil above Koishika 10.

At the end of the stroke of the cylinder 14, the movable beam 13 is at its highest position, and at this position, the bottom surface of the outer periphery of the minimum coil diameter that can be handled on the movable beam 13 and the highest position of the coil fall prevention saddle 19 attached to the fixed beam 18 are at the highest position. A gap in the height direction is created between them, allowing the movable beam 13 to retreat. Retraction is carried out by retracting the cylinder 20, at the rear end of the stroker of the cylinder io, the coil on the movable beam 13 is on the saddle 19 on the fixed beam 18, and in this position retracting the cylinder 14 causes the movable beam to 13
The coil on the lower saddle 21 is left behind on the saddle 19 on the fixed beam 18 as it continues to descend until it finally reaches the bottom and waits for the next coil to be carried by the coil force 10. . The coil force 10 can run immediately after the movable beam 13 has retreated.

Figure 11 is a model of the operating sequence of the coil conveyor. (,) shows the state in which the coil placed on the coil force 10 has arrived in the standby state, b) shows the state in which the movable beam 13 is extended, and ( c) shows the state in which the coils on the fixed beam 18 and the coil car 10 are raised to the highest position; (d)
shows the state in which the movable beam 13 is pulled back from the state in (c).

FIG. 12 illustrates the operation of a walking beam coil conveyor, the work required for its operation, and a comparison of the amount of oil supplied by a pump to the cylinders used to operate an actual walking beam coil conveyor.

(a) shows the operation, (b) shows the work required for the movement, and (e) shows the amount of oil in the cylinder. 5 shown in the figure (a) is a stroke to raise the movable beam 13, g is a stroke to lower the movable beam and the coil at the same time, h is a stroke to retreat the movable beam 13 and the coil, and i is a stroke to raise the movable beam 13 and the coil. j is the process of lowering only the movable beam 13, p1 is the process of lowering only the movable beam 13, k is
indicates the stroke of moving the movable beam 13 forward.

As is clear from the figure, the actual consumption of pressure oil is large compared to the required work due to the amount of pressure oil.

Regarding the coil conveyor on the entry side, the operation and power relationship are the same, although the operation is reversed.

A conventional example of the input coil force is shown in FIG.

The input coil force 3 is provided to place the coils conveyed by the input coil conveyor 2 on the payoff reel. Roughly speaking, since the wheels 23 and the lifter 2/I, which can be moved by the cylinder 22, are connected to each other, the guide and the cylinder 25
The chino 2 is powered by the main body 26 containing the
A space 30ti into which the cradle roll 29 and the movable beam of the coil conveyor can be entered.
[It consists of a lid 24.

The coils carried by the incoming coil conveyor are located at almost the same position as the building foundation of the steel factory.

Therefore, the lifter 24 is raised close to the ground by the cylinder 25, receives the coil from the coil conveyor, and continues by a stroke S until the height of the drum of the payoff reel and the center of the inner diameter of the coil are at the same position. It descends and stops, and then the cylinder 22 strokes it to the middle position between it and the payoff reel 4 to unwind the tip of the strip and take care of the shape of the tip of the strip. Wait until the unwinding is completed.

The payoff reel has a double mandrel shape and its outer shape is shown in FIG. (a) shows the state when the coil is inserted, and (b) shows the state where the coil is attached to the mandrel.The mandrel 33 has a mandrel 33 that can be expanded and contracted by a cylinder 32 on both sides around the center of the rolling pass, and a motor is connected to the mandrel through a reducer 34. 35. When the coil is completely unwound, the mandrel 33 is contracted and opened on both sides by the cylinder 36, and the coil enters between the mandrels 33 and moves the mandrel to the center of the path again. Then, the mandrel 33 is expanded by the cylinder 32, and the coil is installed. is completed.

On the other hand, after the coil car 3 inserts the coil into the madrel 33, it immediately descends by a stroke S until a gap at the height between the top surface of the lifter and the bottom surface of the coil is created, and then moves again to the intersection with the center of the coil conveyor. and prepare for receiving the next coil.

FIG. 15 shows a conventional example of how coils are handled from a winder on the exit side of a rolling mill to an exit coil conveyor.

A winder 8 winds the strip into a coil. When winding is completed, the output coil force 1 waiting under the coil
0 lifter 34 rises until it contacts the outer periphery of the coil, supporting the weight of the coil, then the winding 1519 contracts and the coil rides the coil force 10.

Next, the coil car 10 is moved by the cylinder 36 to an intermediate position Q between the drum position and the center of the exit coil conveyor.
The coil on the lifter 34 is raised to the height where it meets the output coil conveyor 11, and is again moved to the center point m of the output coil conveyor by the cylinder 36, and is ready for coil delivery to the output coil conveyor 11. is completed.

The above conventional techniques have the following drawbacks.

(1) Person, exit walking type coil conveyor m(a)
Compared to the power required for operation, the energy consumption of hydraulic oil supplied for operation is large.

(b) The cylinder is capable of operating by receiving the weight of the coil, and operates even when there is no coil, and its mechanical structure is large compared to the required capacity.

(2) Inlet coil force (a) The lift stroke of the coil becomes large, the stroke of the lift cylinder becomes large, and the coil car mechanical structure becomes large and the machine price becomes high.

(b) The machine is tall and large, and the cost of the foundation is large.

(3) Output side coil force (a) The lift stroke of the coil becomes larger, the lift cylinder becomes larger, the coil car machine becomes larger, and the machine price becomes higher.

(b) The machine is large in height and the cost of the foundation is large.

(C) Since a large capacity cylinder is used even in no-load operation, much energy is wasted in hydraulic oil.

[Purpose of the invention]

An object of the present invention is to provide a compact and energy-saving conveying equipment that eliminates the need for lifting the coil and effectively utilizes the potential energy of the coil itself to transport the coil, and iron manufacturing equipment that utilizes the same. It's about doing.

[Summary of the invention]

Iron-making machinery has been increasing in size over the past few years, and with improvements in productivity and yield, the weight of the coils handled has continued to increase. On the other hand, technically, we have been able to compensate for this by changing the size of the machines and increasing the pressure of the hydraulic power source, but the cost has increased in relation to the load value of these machines, so we have taken a comprehensive outlook and stacked up the required functions. . This is a result of noting that thick coils can have large potential energy.

Example of invention C] An embodiment of the present invention will be described below.

Figure 1 shows the side layout of the rolling equipment. The basic idea of this invention is to utilize the potential energy of the coil and prevent the loss of device energy, that is, to eliminate the need to move the coil from a low place to a high place, and when moving the coil from one position to the next. , the next position should be the same or lower than the previous position.

Regarding the input side equipment, the last machine that handles the rolled material as a coil is the payoff reel 36, and if we include the condition that the coil is not raised during all operations, the absolute position of the coil 37 on the pass center line is as follows. When the coil 37 is received in its current position, the lower surface of the outer diameter of the coil is higher than the drum of the payoff reel, but from the standpoint of energy saving, this does not have much meaning.

FIG. 2 shows an entry side oblique walking conveyor, in which a fixed beam 42 and a moving beam 43 fixed to the foundation are sloped downward toward the coil delivery side. Saddles 44 and 45 attached to both beams are adjusted and attached so that the axial center of the coil is horizontal. Further, the saddle 45 on the moving beam side is damaged by the jack 46.

) Now, to move the coil forward, move the cylinder 47 forward and rotate the arm 48 around the pin 49.

Stand the arm 48 close to vertical. In this state, there is a gap between the upper surface of the moving beam 48 and the lower surface of the coils, except for coils with extremely small diameters.

Next, the saddle 45 is raised by the jack 46,
The coil is moved away from the fixed beam 43. At this time, most of the weight of the coil is received by the lever 48, so the cylinder 4
No force is applied to 7. In this condition, cylinder 50
moves the moving beam 43 forward and moves the coil forward.

At this time, the tip of the beam 43 is attached to the coil car 52 and the lid 5
When the jack 46 is lowered, the coil is placed on the cover 53 of the coil car 52, and the other coils are placed on the saddle 44 on the fixed beam 42. The moving beam 43 then reaches its lowest end by pulling the cylinder 47 and returning the lever 48 to its original position.

When the cylinder 50 is pulled in this state, the moving beam 43 returns to its initial position.

The relationship between conveyor operation, required power, and hydraulic oil consumption for this operation is shown in Figure 4. That is, ゛) Cylinder 4
It is only necessary to provide the output of 7 with the ability to operate only the moving beam 43, and the consumption of oil amount is significantly reduced.

The coil car that receives the coil from the entrance conveyor is coil 3.
7, and the process from this position to mounting the coil on the drum of the payoff reel 36 will be explained with reference to FIG. Receive the coil at the position of the coil 37, or move the coil 52 forward with the cylinder 56 while the lid remains as it is.
Stop at position 4. At this position, the strip is pulled out and the tip of the strip is maintained. When the payoff reel 36 is empty, the cylinder 56 is advanced again to the coil position 57. Next, the lifter 53 is lowered by the cylinder 55 and the inner diameter of the coil is Align it with the core of the payoff reel mandrel to complete the coil device.

〔Effect of the invention〕

According to the present invention, it is possible to downsize the machine, save energy, and reduce the depth of the foundation.

As shown in Figure 6, the arrangement of the exit winding station is such that the winding center is located at a position that is more than half the maximum coil diameter relative to the lower surface height of the coil from the building foundation surface required by the exit conveyor. Determine the position of the winder.

In this way, it is possible to reduce the cylinder diameter, and at the same time, it is possible to downsize the machine and reduce the foundation depth.

[Brief explanation of drawings]

FIG. 1 is a side skeleton view of the arrangement of one embodiment of the present invention;
FIG. 2 is a side view of the walking beam conveyor according to the present invention, FIG. 3 is a side view of the other side of the walking beam conveyor according to the present invention, and FIG. 4 is a diagram showing the power and cylinders required for operating the coil conveyor according to the present invention. FIG. 5 is a side view of the oblique coil car according to the present invention. FIG. 6 is a side view showing the relationship between the outlet winder and the coil installation position according to the present invention. Figure 7 is a plan view of the equipment layout of the prior art, Figure 8 is a side skeleton diagram of the equipment layout of the prior art, Figure 9 is a side view of a conventional walking beam type conveyor, and Figure 10 is a diagram showing the x-x arrows in Figure 9. View, 11th
The figure is a skeleton diagram explaining the operation of a conventional walking beam type conveyor, and Figure 12 is a comparison of the operation of a conventional walking beam type conveyor, the work required to move the coil conveyor, and the amount of oil used in the cylinder to move the conveyor. Diagram showing. FIG. 13 is a side view of a conventional inlet coil car, FIG. 14 is an explanatory diagram of the operation of a double mandrel type payoff reel, and FIG. 15 is a conceptual diagram of the operation of the outlet coil car and the tension reel. 35...Motor, 36...Cylinder, 37.39.
... Coil, 38... Output winder mandrel, 4o.
...Building floor surface.

Claims (1)

[Claims] 1. A strip processing facility, and a device for coiling the strip, transporting it from a coil receiving point to an entrance of the processing facility, and unwinding the strip, in order to supply the strip to the processing facility. A fixing device for receiving the coil in steel manufacturing equipment comprising input equipment including an unwinder and exit equipment for winding the strip into a coil again at the exit side of the processing equipment and transporting it to a delivery point to the next process. a walking beam type coil conveyor consisting of a table and a moving beam that is raised by a cylinder to levitate the coil from the fixed table in order to move the coil one pitch, and is moved in the transfer direction by the cylinder at the rising end; A walking beam type coil conveyor, characterized in that the coil receiver on the moving beam can be moved up and down relative to the moving beam by the cylinder or the like. 2. A walking beam type coil conveyor according to claim 1, characterized in that the fixed base and the moving beam are installed so as to be inclined downwardly in the direction in which the coil is moved.