JPH0114339Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a wire stacking device, and more specifically, to a device for stacking hot rolled wire rods formed into a coil shape on a conveyor.

(Prior art) Recently, hot-rolled wire rods are formed into continuous coils and stacked on an operating conveyor with the wire rod loops staggered. As a result, cooling treatment methods for adjusting the metallographic structure and mechanical properties of wire rods have become widely used. In order to stack these coiled wire rods on a conveyor, conventionally a gangboard-shaped loop receiving member (lower guard) is placed below the formed wire outlet of the laying cone, and the bottom of each wire rod loop is stacked on the conveyor. After sliding on the loop receiving member, they fell onto the conveyor and were piled up. Furthermore, there has been proposed a method in which the loop receiving member is provided with a protrusion for hooking the bottom of the loop (Utility Model Application No. 57-185426).

(Problem to be solved by the invention) However, when using the above loop receiving member, the pitch (eccentricity ), which causes variations in the temperature of the wire during the subsequent cooling process, resulting in nonuniform structure, mechanical properties, etc. of the wire, and a problem in that the coil shape also becomes nonuniform. Even if the loop receiving member is provided with the above-mentioned protrusion, the above-mentioned problem has not been solved because the time it takes for each loop to reach the protrusion varies.

This invention solves the above-mentioned conventional problems, and provides a wire stacking device that stacks wires on a conveyor in a uniform loop pitch and achieves uniform structure, mechanical properties, and coil shape after cooling treatment. This is what I am trying to do.

(Means for Solving the Problem) However, the wire rod stacking device of this invention has a loop receiving member in the form of a gangplank provided below the outlet of the laying cone that forms the rolled wire into a coil shape. A plurality of claws are provided on the outer periphery between the plate material and a conveyor that conveys the formed coiled wire in a stacked manner with each wire loop being shifted. Rollers provided at equal pitches are mounted rotatably around a horizontal axis, and are provided with a drive device for driving the rotation of the rollers and a shift device for moving the mounting position of the rollers horizontally and vertically. This is a special wire stacking device.

(Function) In the wire rod stacking device of this invention, the bottom of each wire rod loop of the coiled wire discharged from the laying cone, after sliding on the loop receiving member, is aligned with the discharge speed and the speed of the following conveyor. It is caught on the claw of a roller that is driven at an outer circumferential speed, and is conveyed at a constant speed to the transfer position to the conveyor. Because this conveyance speed is uniform, the time interval between transfers to the conveyor is constant. As a result, the loop pitch of the wire rods stacked on the conveyor is made uniform. As mentioned above, the bottom of the wire rod loop discharged from the laying cone first slides on the loop receiving member so that its vertical position is almost aligned, and furthermore, the roller on the advancing side of this wire rod loop is moved horizontally and Since the position can be adjusted in the vertical direction, wire rod loops that fall at different positions depending on the speed and weight of the wire ejected from the laying cone can be reliably caught in the claw, and wire rods of various sizes and release speeds can be caught. Enables smooth stacking.

(Example) An example of this invention will be described below with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes a laying cone, which is connected to a finishing stand of a wire rod rolling mill via a suitable cooling device. Reference numeral 2 denotes a conveyor for conveying wire rods, and includes roller conveyor units 4 and 5 mounted on a tiltable base frame 3 whose one end (not shown) is pivotally supported.
The frame 6 of the roller conveyor unit 4 closest to the laying cone 1 is fastened to the base frame 3 by bolts 8 inserted into elongated holes 7 provided in the frame 6, as shown by arrows X in FIG. The mounting position can be changed in the longitudinal direction of the base frame 3.
The roller conveyor unit 5 is fixedly attached to the base frame 3. Reference numeral 9 denotes a roller having serrated claws arranged at equal pitches on the outer periphery of the central portion, and is supported by a bearing 11 at the end of the frame 6 on the side of the laying cone 1 so as to be rotatable around a horizontal axis. Reference numeral 12 denotes a variable speed motor which is a driving device for rotationally driving the roller 9, which is attached to a support 13 fixed to the base frame 3, and has a driving sprocket 14 fixed to its output shaft and a driven sprocket 15 fixed to the shaft of the roller 9. A chain 16 is wrapped around it. 17 is a sprocket-like tension wheel that applies tension to the chain 16;
It is pivoted to a lever 18 which is pivoted to a lever 19.
is a weight hanging from the lever 18. Reference numeral 20 denotes a shift device for moving the roller 9 to the horizontal mounting position, in which a threaded rod 22 rotatably attached to the arm 21 fixed to the base frame 3 is moved to the arm 2 fixed to the frame 6.
3, and a handle 24 for rotational operation is fixed to the threaded rod 22. Further, 25 is a shift device for moving the vertical mounting position of the roller 9, and a screw jack 26 whose housing part is installed on the foundation.
A threaded rod 27 is connected to the base frame 3, and a motor 28 is provided to drive a nut screwed onto the threaded rod 27 via a worm speed reducer. Reference numeral 29 denotes a known loop receiving member (lower guard) in the form of a plank provided between the discharge port 1a of the raining cone 1 and the upper part of the roller 9.
It is.

In order to use the stacking device 30 having the above configuration, the outer peripheral speed of the roller 9 (the moving speed of the claws 10) must be adjusted to the discharge speed of the wire loop 31 discharged from the discharge port 1a of the laying cone 1 (the speed in the axial direction of the laying cone). The speed of the variable speed motor 12 is adjusted so that
The wire rod loop 31 that has slid on the top is set so that it is securely latched onto the claw 10. Note that the conveyance speed of the conveyor 2 is also made to match the discharge speed of the wire rod loop 31.

After setting the speed and position as described above, when the rollers 9 and the conveyor 2 are operated, the bottom of the wire rod loop 31 discharged from the laying cone 1 slides on the loop receiving member 29 and is then latched onto the claw 10 of the roller 9. After being conveyed at a constant speed, it is transferred onto the conveyor 2. Each wire rod loop 31 is urged to fall onto the roller conveyor unit 4 by the inertia force due to the discharge speed from the laying cone 1, its own weight, the tensile force caused by the preceding wire rod loop, etc. After being conveyed, the claws 10 are unlatched at regular intervals, so that the loop pitches P of the wire loops transferred and stacked on the conveyor 2 are made uniform.

If the size or speed of the wire rod is changed, the mounting position and rotational speed of the roller 9 are adjusted in the same manner as above. In this case, each wire loop is
In addition to being hooked to each claw 10 as shown, there may be cases where the hook is hooked to every other claw 10 or every other claw 10.

This invention is not limited to the above-mentioned embodiment; for example, the shape of the pawl 10 may be a convex pawl with a protruding pin, etc., other than a sawtooth shape. Further, in the above embodiment, the position of the rollers 9 was adjusted together with the conveyor 2, but the conveyor 2 was fixed on the foundation.
A structure may be adopted in which only the roller 9 can be adjusted horizontally and vertically.

(Effects of the invention) As explained above, according to this invention, wire rods of various sizes and discharge speeds can be stacked on the conveyor with uniform loop pitch, and the structure and mechanical properties of the wire rods after cooling treatment on the conveyor can be stacked. The properties and coil shape are made uniform, which greatly contributes to improving the quality of the wire.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of a stacking device showing an embodiment of this invention, and FIG. 2 is a plan view thereof. 1...Rain cone, 2...Conveyor, 9...
...Roller, 10...Claw, 11...Bearing, 12...
Variable speed motor (drive device), 20...shift device,
25...Shift device, 29...Loop receiving member, 3
0...Stacking device.

Claims (1)

[Scope of utility model registration request] A loop receiving member in the form of a gangplank is provided below the outlet of the laying cone that forms the rolled wire into a coil shape.
A plurality of claws are provided between this loop receiving member and a conveyor that conveys the formed coiled wire rod in a stacked manner with each wire rod loop being shifted from each other, which hooks the bottom of the wire rod loop discharged from the above-mentioned laying cone. rollers provided at equal pitches on the outer periphery are mounted rotatably around a horizontal axis, and are provided with a drive device for driving the rotation of the rollers and a shift device for moving the mounting position of the rollers horizontally and vertically. A wire stacking device characterized by: