JPS591752Y2 - Steel sorting equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a device for sorting steel materials, and in particular, it sorts steel materials of different lengths that are continuously conveyed on a cut line with a cutting machine, according to the length. Therefore, the method of sorting and loading steel materials into predetermined numbers on each temporary storage table is related to improvements in equipment.

There are cases where a short steel material of a certain length is cut out from a long steel material of a certain length.

At this time, in order to increase the yield, it is necessary to sort and stack several kinds of short steel materials of different lengths into predetermined numbers according to their lengths.

FIG. 1 shows an example of a conventional apparatus for sorting short steel materials used in such applications.

In the figure, 14 is a cutting machine for cutting a long steel material 10 (for example, a round steel material) of a certain length that has been conveyed on a roller conveyor 16, and 18 is a short steel material cut by the cutting machine 14. A kicking device 22 is for dropping short steel materials 12 into each container-shaped temporary steel storage table 20 according to the length, and when a predetermined number of short steel materials 12 are accumulated on each steel temporary storage table 20, the kicking device 22 lifts them up.
This is an overhead crane for transporting steel materials to the storage shelves 24.

In such a conventional short steel material sorting device, the short steel materials 12 cut by the cutter 14 are transferred to a roller conveyor 16.
The kicking device 18 is transported to a temporary steel stand 20 for each length.
It is dropped by.

As shown in FIG. 2, a predetermined number of short steel materials 12 accumulated on the steel material temporary storage table 20 are suspended by a wire 23 from an overhead crane 22, and transported to a steel material storage shelf 24 and stored therein.

In this case, the short steel material 1 dropped into the steel material temporary storage stand 20
2 has its end face aligned at a fixed position on the roller conveyor 16 by a stopper, but this short steel material is kicked out from the steel material support table that constitutes the roller conveyor 16 by the kicking device 18 and placed on the steel material temporary storage table 20. Due to the fall, the position of the end face within the steel material temporary storage stand 20 may be slightly shifted, and the condition of the steel material temporary storage stand 20 is poor due to the impact of the fall, and as shown in FIG. When lifting with the wire 23, it was extremely unstable and the work was dangerous.

It is also necessary to count which steel material temporary storage table 20 the cut short steel materials 12 of each length are dropped into, or how many holes the short steel materials 12 have in which steel material temporary storage table 20.

Therefore, it takes a lot of man-hours and labor to correct the unevenness of these end faces and count them, and furthermore, when the short steel material 12 collides with the stopper or when the short steel material 12 is dropped into the steel material temporary holding table 20, the noise is intense. In addition, it has many drawbacks, such as the short steel materials 12 being damaged due to collisions between the short steel materials 12.

The present invention was developed to eliminate the above-mentioned drawbacks of the conventional methods, and allows steel materials to be stored in a fixed position in a container-shaped temporary storage table.Therefore, safety during lifting and movement is high, and steel materials can be easily managed. The purpose is to provide suitable steel sorting equipment.

This invention cuts long steel materials that are continuously conveyed on a line into short steel materials of different lengths, and sorts and loads them into predetermined numbers on multiple temporary storage tables according to the length. Steel sorting is carried out using a device that includes a roller conveyor that conveys each of the steel materials, a length measuring means that measures the length of the long steel materials, and a cutting dimension that is given in advance, and drives the roller conveyor to separate the long steel materials. a cutting dimension setting means for conveying only the cutting dimension;
a cutting machine installed downstream of the length measuring means and configured to cut the long steel material on the roller conveyor into predetermined short steel materials;
A phototube is provided downstream of the cutting machine to detect the tip of the short steel material, and center position calculation is performed to determine the longitudinal center of the short steel material from the detection signal of the phototube and the cutting dimension output by the cutting dimension setting means. means for decelerating and stopping the roller conveyor, and center position deceleration and stopping means for always stopping the longitudinal center of the short steel material at a constant position; By providing a lifting means for hoisting the short steel material located at This is what I did.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In this embodiment, as shown in FIG. 4, two frames 32 are arranged at the downstream end of the roller conveyor 16 in a direction perpendicular to the roller conveyor 16, and a roller conveyor
A lifting equipment 30 consisting of a lifting machine 34 such as an electromagnetic crane that moves in a direction perpendicular to the moving direction of the short steel material 12 on the top 6 is provided, and the roller conveyor 16 is located at a position that coincides with the center of the lifting equipment 30. A phototube 36 for detecting the tip of the short steel material 12 is disposed on the side surface, and a temporary steel material storage stand 37 is placed inside the pedestal 32 on both sides of the roller conveyor 16 line at a distance of at least the club width of the lifting machine 34. Multiple pieces are arranged.

In the figure, reference numeral 38 indicates a cutting dimension setting means for instructing the cutting length of the short steel material, a center position calculation means for determining the center position of the cut short steel material, and a center position deceleration stop for moving the center position of the short steel material to a certain position. A computer serves as a lifting means control device for automatically operating the means and the lifting machine, 40 is an operation panel, and 42 is a length measuring means.

The other points are the same as those in the previous embodiment, so the explanation will be omitted.

The steel material temporary storage table 37 is, for example, in the shape of a container and has a substantially U-shaped cross section, as shown in FIG. 5, for example.

゛The operation will be explained below with reference to FIG.

First, according to the cutting order, the long steel material 10 is cut into the short steel material 1.
In order to cut the short steel material 12 into 2 pieces, the cutting length of the short steel material 12, the number of the steel material temporary storage table 37 that stores the cut short steel material 12, and the number of pieces stored in each steel material temporary storage table are sent to the computer 38 via the operation panel 40. is input.

The length of the long steel material 10 having a predetermined length that has been conveyed on the roller conveyor 16 is measured by the length measuring means 42 on the roller conveyor 16, and the length measurement data is fed back to the computer 38. Ru.

The computer 38 compares the length measurement data with the cutting length of the short steel material 12 input from the operation panel 40, moves the long steel material 10 by an amount commensurate with the cutting length, and cuts the long steel material 12 in the cutting machine 14. The steel material 10 is cut.

The short steel material 12 cut by the cutter 14 is conveyed again by the roller conveyor 16, and its leading end is detected by a phototube 36.

The detection signal of this phototube 36 is input to a computer 38.

The computer 38 controls a drive device (not shown) based on the cut dimensions of the short steel material 12 and the detection signal from the phototube 36, and reduces the speed of the roller conveyor 16 at a predetermined rate according to the length of the short steel material 12, thereby reducing the length of the short steel material 12. The roller conveyor 16 is stopped so that its directional center always coincides with the center of the lifting equipment where the phototube 36 is placed.

Next, the lifting machine 34 waiting at the center of the lifting equipment 30
Then, an instruction is issued from the computer 38, and the short steel material 12
The user is instructed as to which steel material temporary storage stand 37 the material should be placed on.

Based on instructions from the computer 38, the lifting machine 34 lifts the short steel material 12 at a position that coincides with the center of the lifting equipment 30, and lifts the short steel material 12 at a position that coincides with the center of the lifting equipment 30, and aligns the short steel material with the center position of the steel temporary storage table 37 specified according to the length. The short steel material 12 is conveyed to the position where the centers of the steel materials 12 coincide with each other, and there, the short steel material 12 is placed on the steel material temporary storage table 3.
Put it in during 7.

When lowering the short steel materials 12 into the temporary steel storage table 37 using this lifting machine 34, the short steel materials 12 are always lowered in the order of A, B, and C as shown in FIG. It is considered that the packaging of the short steel materials 12 inside is stable.

After the lifting machine 34 puts the short steel material 12 into the steel material temporary storage table 37, it returns to a certain position that coincides with the center of the lifting equipment 30 again.

By repeating such an operation, the short steel materials 12 are sequentially introduced into the steel material temporary storage table 37, and when the number of short steel materials 12 introduced into the steel material temporary storage table 37 reaches a predetermined number, the computer 38 sends a buzzer or red light to the operation panel 40. A lamp command is output, and in response to the instruction, the temporary steel storage table 37 into which short steel materials are introduced is switched, and the temporary steel storage table 37 becomes full.
Then, using the overhead crane 22, a predetermined number of short steel materials 12 are lifted up with their end faces aligned and in a stable packaging state, and transported to a steel material storage shelf 24 for storage.

In the above embodiment, the present invention is applied to a device for sorting short steel materials, but the scope of application of the present invention is not limited to this, and it can be similarly applied to a device for sorting general steel materials. it is obvious.

As explained above, according to the present invention, the steel material is stopped so that its longitudinal center is always at a fixed position, the stopped steel material is lifted at the fixed position, and the steel material is placed at a predetermined position on each steel material temporary storage stand according to the length. Since the end faces of the steel materials stored in the steel material temporary storage table are aligned, the appearance of the product is stable when it is moved to a steel material storage shelf, etc., and safety is high.

Also, managing steel materials (sorting steel storage shelves, counting the number of steel materials, etc.)
This eliminates the need for a large amount of labor, and also prevents the so-called mixing of different materials, in which steel materials of different lengths are mixed into other steel storage shelves.

In addition, since no kicking device is used, it has excellent effects such as preventing noise and scratches caused by impact when dropping the steel material into a temporary holding table.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an example of a conventional short steel material sorting device, FIG. 2 is a side view showing the state of movement of loaded short steel materials, and FIG. 3 is a side view showing the moving state of loaded short steel materials. FIG. 4 is a top view showing a state in which short steel materials are temporarily stored in the right direction in a conventional example; FIG. FIG. 5 is a cross-sectional view showing a temporary steel storage table in which short steel materials are stored in the embodiment, and FIG. 6 is a flowchart showing the processing flow of the apparatus for sorting short steel materials in the embodiment. 12... Short steel material, 16... Roller conveyor, 22... Overhead crane, 24...
... Steel storage shelves, 30 ... Lifting equipment, 34 ...
... Lifting machine, 36 ... Phototube, 37 ...
... Steel temporary storage stand, 38 ... Computer, 4
0......Operation panel.

Claims (1)

[Scope of utility model registration request] Steel material sorting equipment is used to cut long steel materials that are continuously conveyed on a line into short steel materials of different lengths, divide them into predetermined numbers of steel materials, and load them onto multiple temporary storage tables according to the length. , a roller conveyor for conveying each of the steel materials, a length measuring means for measuring the length of the long steel material, a cutting dimension given in advance, and driving the roller conveyor to convey the long steel material by the cutting dimension. a cutting dimension setting means; a cutting machine provided downstream of the length measuring means for cutting the long steel material on the roller conveyor into predetermined short steel materials; and a cutting machine provided downstream of the cutting machine. a phototube for detecting the tip of the short steel material; a center position calculation means for determining the longitudinal center of the short steel material from the detection signal of the phototube and the cutting dimension output from the cutting dimension setting means; center position deceleration and stopping means for always stopping the longitudinal center of the steel material at a fixed position; lifting means for hoisting the short steel material whose installation center coincides with the fixed position and whose longitudinal center is at this fixed position; A device for sorting steel materials, comprising a lifting means control device that moves the lifting means to a predetermined temporary holding table according to the length of the short steel materials.