JPH11139556A - Long object transfer device and long object transfer method with it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer device with a simple structure for a long object conveying facility. SOLUTION: This long object transfer device is constituted of a transfer carriage 1 having a rotatively rocking load bar 11 and traveled on a track 31 and a transfer carriage moving device connecting a transfer carriage with an endless cord 21. The load bar 11 having a load section 12 at one end, connected to the endless cord 21 at the other end, and journalled at the center section and a wheel 13 are journalled to a carriage frame 14 respectively, the transfer carriage 1 can be traveled in the horizontal direction by the endless cord 21 of the transfer carriage moving device, and the load bar 11 can be rotatively rocked.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer apparatus for moving a long object conveyed on a transfer line in a direction perpendicular to the transfer line and reloading it on another transfer line provided in parallel. The present invention relates to a method of transferring a used long object.

[0002]

2. Description of the Related Art In a steel product production plant, long materials such as raw materials, semi-finished products, products and jigs used for processing the same are transported in various directions by various transport lines. In particular, in factories that produce long products such as steel pipes and shaped steel, if these transport lines are not devised, there are problems such as production stagnation and wasting a large area of the factory site.

[0003] The transfer of long objects will be described by taking a seamless steel pipe manufacturing plant using the Mannesmann pipe manufacturing method as an example.

In this pipe making method, a solid round billet heated to a high temperature is used as a material to be rolled, and the round billet is supplied to a piercing mill (a so-called piercer), and the shaft core is formed into a hole. At the end, a hollow shell is manufactured. Then, the produced hollow shell as it is, or if necessary, through an elongator having the same configuration as the piercing mill, diameter expansion and thinning were performed, and then to a subsequent drawing mill such as a plug mill or a mandrel mill. Supply and stretch rolling. After that, it is passed through a stretch reducer, a reeler, a sizer, and the like to correct the shape and size, and then through a refining process to produce a seamless steel pipe product.

At this time, in a piercing mill (piercer), a plug to be used for rolling is held by a cored bar. As for the diameter size of the core metal to be used, an appropriate size core metal must be selected according to the billet to be drilled and the size of the hollow shell after drilling. In recent years, in order to produce seamless steel pipes with high efficiency, the production of steel pipes with a wide range from small diameter to large diameter has become a target. You have to prepare different kinds of cores.

[0006]

As described above, when many types of metal cores are prepared in a piercing mill, the core metal can be effectively replaced and the plug life can be improved. Then, the core bar changing device is installed in the piercing and rolling mill.

FIG. 5 is a view schematically showing an example of a core bar changing device. The core bar changing device 6 is installed on the outlet side of the piercer 7 and sequentially supplies the core bar M with the plug 65 attached thereto. For this reason, the cored bar changing device 6 supplies a cored bar with a plug to a piercing and rolling mill, and a rolling line 71 for discharging the cored bar after rolling, and a plug mounted at the tip while rotating the cored bar. A cooling line 63 for inserting and cooling the
It includes a kick-up device 61 for transferring the core metal to the adjacent rolling line and cooling line, and a manipulator 62 for transferring the core metal in the opposite direction.The core metal M to be supplied to the piercing mill along the arrow in the drawing. Is used cyclically. Further, an inspection line 66 for inspecting the surface condition of the plug is provided if necessary.

[0008] As shown in FIG.
Then, a core metal stock table 8 for preparing a core metal to be used next or collecting the core metal after rolling is provided. Is provided. In this core metal stock table 8, since it is necessary to effectively prepare long and various kinds of metal cores and supply them to the metal core changing device 6, or to collect the core metal that has been rolled in a short time, It is indispensable that the cored bar can be fed laterally with simple equipment and the transfer between the transport line 5 and the cored bar stock table is reliably performed. Conventionally, kick-up devices and traversing devices such as chain conveyors and walking beams have been used as transport equipment having such functions.However, the equipment becomes large-scale, and equipment costs increase. In addition, there are problems such as complicated control equipment.

An object of the present invention is to develop a device capable of integrally exhibiting the functions of a conventional kick-up device and a traversing device, and to transfer a long object which has a simple structure and is easy to operate and control. An apparatus and a transfer method are provided.

[0010]

The present inventors have noticed that the above-mentioned object is achieved by adopting a structure for moving a kick-up device provided in various places of conventional transfer. The present invention has been completed. The gist of the present invention is a long object transfer device and a transfer method for the long object shown in FIGS. 2 and 3.

A long object transfer device including a transfer truck 1 having a loading rod 11 that rotates and swings and traveling on a track 31 and a transfer truck moving device 2 in which the transfer truck is connected by an endless cable 21.

The transfer cart 1 has a loading section 12 at one end, a loading rod 11 having the other end connected to an endless cable 21 and a central portion pivotally supported, and a wheel 13 formed by a truck frame 14 respectively. This is a device that is supported by a shaft and is capable of moving in the horizontal direction and rotating and swinging the loading rod by the endless cable 21 of the transfer carriage moving device 2.

[0013] A transfer truck having a loading portion and a rotatable swinging loading rod and wheels is connected by an endless cable, and one end of the endless cable is connected to the loading rod, and the other end is connected to the loading rod. Connected to the bogie frame, the endless cable is moved by a driven pulley sliding on the drive pulley, the endless cable is moved by the drive pulley, the transfer carriage is run, and the loading rod is moved by the tension of the endless cable due to the sliding of the driven pulley. A length characterized by rotating and swinging, placing a long object on the mounting portion by rotating and swinging the mounting rod, and reloading the long object by running the transfer cart and rotating and swinging the loading rod. How to transfer the shaku.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION With regard to a transfer device of the present invention, a core bar for mounting a piercer plug of a piercing rolling mill used for manufacturing a seamless steel pipe is used as the long object (hereinafter, simply referred to as “core bar”) Will be described).

FIGS. 1A and 1B are diagrams schematically showing a metal core transport line in which a long object transfer device of the present invention is installed, wherein FIG. 1A is a plan view and FIG. 1B is an elevation view. The core metal M is placed on a transport line 5 composed of a plurality of driven or non-driven hourglass rollers 35, 36, and is transported in the axial direction by rotation of the hourglass rollers. As shown in FIG. 1, the long object transfer device 3 is provided with a plurality (four in this case) of drum-shaped rollers 35 and 36 at right angles to the core metal conveyance direction. The core metal is transported from the placed cradle 4 in a direction perpendicular to the transport line 5 and is replaced on the drum-shaped roller of the transport line.
The plurality of long object transfer devices (hereinafter, referred to as “transfer devices”) are connected by a drive shaft 24 of a drive pulley 22, and have a structure that can be operated in synchronization with each other.

FIGS. 2A and 2B are views showing an example of the transfer apparatus of the present invention. FIG. 2A is a plan view, FIG. 2B is an elevation view, and FIG. 2C is a side view. The transfer device 3 for transferring a long object (core metal) includes a transfer truck 1 having a loading rod 11 that rotates and swings and running on a track 31 and the transfer truck 1 connected by an endless cable 21. Truck moving device 2
It is constituted by.

FIGS. 3A and 3B are views showing an example of the transfer cart of the present invention, wherein FIG. 3A is a plan view, FIG. 3B is an elevation view, and FIG. 3C is a side view. The transfer cart 1 has a structure in which a loading rod 11 and wheels 13 are incorporated into a bogie frame 14 by respective axes, and one end of the loading rod 11 and the bogie frame 14 are connected to an endless cable 21.

The loading rod 11 has a loading portion 12 opened upward at one end, and a metal fitting 15 connected to an endless cable 21 and a spring 17 connected to a bogie frame 14 are provided at the other end. The portion is rotatably supported by a support shaft 18 via a bearing 19 for rotationally swinging. As the loading rod rotates and swings,
The loading section 12 is raised by a height necessary for loading as indicated by the arrow, and the core metal is replaced. Further, when the rotation is not oscillated, the loading section 12 is lowered by the spring 17.

Wheels 13 that can be driven via bearings are mounted on the bogie frame 14, and metal fittings mounted on the bogie frame 14 are provided.
A track which is connected to an endless cable 21 by a bracket 16 and a fitting 15 attached to the loading rod 12, and is constituted by, for example, a flange portion of a channel steel.
Drive on 31.

FIGS. 4A and 4B are views showing an example of the driven pulley side of the transfer bogie moving device of the present invention, wherein FIG. 4A is a plan view, FIG. 4B is an elevation view, and FIG. 4C is a side view. . The transfer cart moving device 2 is an endless cable
21, a drive pulley 22 and a slidable driven pulley 23 (see FIG. 2 for the drive pulley 22).

The endless cable 21 includes a chain, a wire, a rope,
A belt or the like that can be put on a pulley in a loop and can transmit power can be used. A drive pulley and a driven pulley corresponding to an endless cable are used. When a chain is used as the endless cable, a sprocket is used as the drive pulley and the driven pulley.

The drive pulley 22 is fixed to a drive shaft 24 common to the plurality of transfer devices 3 as shown in FIG. 1, and further, as shown in FIG. Fixed to 32. When the drive pulleys 22 of the transfer devices 2 rotate in synchronization with each other, the endless cable 21 is moved, and the transfer cart 1 is caused to travel.

The driven pulley 23 has a bearing 26 as shown in FIG.
, And the support shaft 27 is supported by two axle boxes 28 from both sides. Driven pulley
23 is rotated by the movement of the endless cable 21.

The axle box 28 of the driven pulley is inserted between two sliding members 29 provided up and down as shown in FIG. 4 (b), and one end of the axle box is connected to a sliding device 33 such as a hydraulic device. And the sliding member 29 and the sliding device 33 are fixed to the support 32 of the transfer device. When the driven pulley 23 is moved in the horizontal direction by the sliding device 33 as shown in FIG. 2 (b), tension is applied to the endless cable 21 and the transfer rod 11 of the transfer vehicle 1 connected to one end of the endless cable is moved. By rotating and swinging, the loading portion 12 is raised. Further, when the drive pulley 22 is rotated with the loading portion 12 raised, the endless cable 21 moves, and the transfer carriage 1 holding the core moves and moves from the cradle 4 to the transfer line 5. it can.

For example, a hydraulic cylinder is used as the sliding device 33 of the driven pulley shown in FIGS. 2 and 4, and one hydraulic cylinder is installed on each driven pulley, and the supply and discharge of the hydraulic pressure are synchronized. By doing so, the core metal can be raised at the same time. In addition, by providing a rack and a sliding member on a column of the transfer device, sharing a shaft of a driven pulley with a plurality of transfer devices, providing a pinion gear meshing with the rack on the common shaft, and rotating the common shaft. A driven pulley can also be slid.

Next, a method for transferring the core metal from the cradle to the transfer line using the transfer device of the present invention will be described. The transfer device is connected to the drive shaft of the drive pulley as shown in FIG. 1, and the hydraulic supply and discharge of the slide device shown in FIG. 2 are synchronized, and the following operation of the plurality of transfer devices is performed. Are performed simultaneously.

With the loading section 12 lowered as in the case of the transfer cart 1 shown on the right side of FIG. 2 (b), it is moved below the cradle 4 on which the metal core M is placed, and The rotation of the drive pulley 22 is adjusted so that the loading portion is located below the cored bar. When hydraulic pressure is supplied to the hydraulic device of the sliding device 33, the driven pulley moves horizontally while rotating, and
21 is tensioned. The tension of the endless cable is
When the tension becomes greater than the tension of the spring 17 connected to 14, the loading rod is rotated and oscillated, and the core metal is placed on the loading portion. Loading section 12
Has a shape opened upward as shown in the figure,
Although the mounting can be performed by the rotation of the core metal, the core metal can be mounted at the center of the loading portion by driving the sliding device and the drive pulley.

The mandrel is placed on the loading portion, and the sliding device is driven to rotate the loading rod to raise the mandrel. In this state, the drive pulley is driven to move the endless cable to move the mandrel. The carriage is moved to the transfer line side. When the core metal arrives on the drum rollers 35 and 36 of the transport line, reduce the hydraulic pressure of the sliding device, loosen the tension of the endless cable, rotate the transfer rod with a spring, and place the core metal on the drum rollers. Is placed. As described above, the core can be placed on the hourglass roller by rotating the core metal, but the sliding device and the drive pulley are driven to place the core metal at the center of the hourglass roller. can do.

In the transfer apparatus of the present invention, a plurality of transfer units are provided at right angles to the transfer line while the drum-shaped rollers and the cradle of the transfer line are installed. Can be driven between the cradle provided on both sides of the transport line by rotating the drive pulley.

[0030]

According to the transfer apparatus of the present invention, a long object is placed on the carriage and the bogie frame is connected to the bogie frame by an endless cable, and the long object is moved up and down by moving the endless cable. The structure is simple because it can travel in a direction perpendicular to the transport line, and the function of the conventional kick-up device and the traversing device can be simultaneously exhibited. For this reason, when transferring the above-described core metal, which is a long object, one transfer device requires one transfer device.
By providing the transfer carts, it is possible to easily transport between the long object loading devices (cradles) provided on both sides of the transport line. Similarly, according to the transfer method using such an apparatus, long materials can be easily transferred from the transport line.

[Brief description of the drawings]

FIGS. 1A and 1B are diagrams schematically showing a metal core transfer line in which a long object transfer device of the present invention is installed, wherein FIG. 1A is a plan view and FIG. 1B is an elevation view.

FIG. 2 is a view showing an example of a transfer cart according to the present invention, and (a).
Is a plan view, (b) is an elevation view, and (c) is a side view.

FIG. 3 is a view showing an example of a transfer cart according to the present invention, and (a).
Is a plan view, (b) is an elevation view, and (c) is a side view.

FIG. 4 is a view showing an example of a driven pulley side of the transfer carriage moving device of the present invention, wherein (a) is a plan view, (b) is an elevation view, and (c) is a side view.

FIG. 5 is a diagram schematically illustrating an example of a core bar changing device.

[Explanation of symbols]

 1. Transfer trolley 2. 2. Transfer carriage moving device 3. Long object transfer device Cradle 5. Transport line 6. Core bar exchange device 7. Piercer 8. Stock table M. Core metal 11． Loading rod 12． Loading section 13. Wheels 14． Bogie frame 15,16. Hardware 17. Spring 18. Support shaft 19. Bearing 21. Endless cable 22. Drive pulley 23. Driven pulley 24. Drive shaft 25,26. Bearing 27. Support shaft 28. Axle box 29. Sliding member 31. Orbit 32. Prop 33. Sliding devices 51,52. Hourglass roller 61. Raising device 62. Manipulators 63, 63a, 63b. Cooling line 64. Plug 65． Cooling device 66. Inspection line 71. Piercer rolling line

Claims (3)

[Claims] 1. A long object transfer device comprising: a transfer vehicle having a loading rod that swings and swings and traveling on a track; and a transfer vehicle moving device in which the transfer vehicles are connected by endless cables. 2. A loading rod having a loading portion at one end, the other end connected to an endless cable, and a central portion pivotally supported;
The long object transfer device according to claim 1, wherein the wheel and the bogie frame are each supported by a bogie frame, and the bogie frame is connected to an endless cable. 3. A transfer truck having a loading portion and rotating and swinging, and a wheel rotatably supported by a bogie frame, is connected by an endless cable, one end of the endless cable is connected to the loading rod, and One end is connected to the bogie frame, the endless cable is moved by a driven pulley that slides on the drive pulley, the transfer carriage is moved by the movement of the endless cable by the drive pulley, and the load is applied by the tension of the endless cable due to the sliding of the driven pulley. The rod is rotated and oscillated, and a long object is placed on the mounting part by the rotation of the mounting rod, and the long object is reloaded by the traveling of the transfer cart and the rotation of the loading rod. To transfer long objects.