JPS592939Y2 - Automatic fusing device for steel plates - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic fusing device that can continuously cut a large number of small-sized steel plates mainly used for stiffeners of steel frames, bridges, ships, etc.

The shapes of stiffeners can be mainly categorized into those shown in Figure 8, but for drums, we will specifically explain the shape shown in B.

Conventionally, in order to cut a steel plate of this type of shape, as shown in FIG. 9, first, a base material 1 is vertically cut using a frame planer to divide the material 2' (flat steel shape) into a plurality of rows.

Then, a method is adopted in which a ruled line C is drawn, a circular cutter is used to fuse the second circle, and finally a small (horizontal) cut is made along the ruled line C using a portable planer to fuse the predetermined product B. (In the drawing, A indicates the piercing position, and the mouth indicates the path of the torch.)

). However, this conventional method requires four steps: frame planer fusing, crease drawing, circular cut fusing, and porter pull planer fusing, and if you take into account the handling between each step, it requires a huge number of steps, making it economically uneconomical. There are some shortcomings.

In addition, most of the work requires a half-stuck posture, resulting in severe worker fatigue and many complaining of lower back pain, which is also a problem from an occupational health standpoint.

In order to eliminate the above-mentioned drawbacks, automatic fusing devices have been developed, but none of them are satisfactory.

Among them, Tokko Sho 51-26196, Kaimei 53-413
In the method proposed in 96 etc., the material is clamped and transported forward, so the material is restrained by the clamp, so it is difficult to guide the material easily and smoothly, and it is difficult to position the material. , the clamp must be temporarily opened and retracted in order to release the thermal strain during the meltdown.

To do this, after the welding is completed, the material is clamped again and transported a predetermined distance, but since the material is thermally expanded,
It has to be corrected by the amount of expansion before being transported, which makes it technically difficult to incorporate a calculation mechanism into the control mechanism, and since there is only one torch, it takes a long time to fuse. .

The present invention has developed a fusing device that does not have the above-mentioned conventional drawbacks and is inexpensive even if the equipment is simple.

The gist of the present invention is as follows.

Equipped with multiple rows of chain drive devices on the material feeding table,
In addition, a material insertion table is provided in series with the material insertion table, a number of bushing units are coupled to the chain (coupled to the motor) in the material insertion table, and a pusher is installed adjacent to the fusing table connected to the slag removal unit connected to the material insertion table. , and a plurality of removable free ball plates with embedded 7-reel balls are arranged in parallel, and equipped with a torch for circular cutting, etc., and a finished product delivery conveyor is arranged in line with the fusing table, and the finished product is cut in advance to the finished length. This is an automatic steel plate fusing device characterized by being equipped with a gauge stopper for setting and a lifting piler connected to a product delivery conveyor.

As mentioned above, the present invention uses a material distribution table (hereinafter referred to as a "material supply table").

) 3, material insertion table 4, slag removal device 14, fusing table 51. The basic structure is that the elemental mechanisms of the gauge stopper 22, the product delivery conveyor 6, and the lifting piler 7 form a series of lines.

Next, details of embodiments of the present invention will be explained with reference to the drawings.

In FIG. 1, a plurality of sheets of material 2 obtained by vertically welding a base material 1 with a frame planer are arranged parallel to the welding line on a material supply table 3 on which a plurality of rows of chade 8 are installed.
The chain 8 on the material supply table 3 is driven, and only one material 2 is dropped onto the material insertion table 4 along the inclined plate 9.

A pusher 10 operated by an air cylinder (not shown) pushes the material 2 against the guide roll 11 to position it.

Driven by the variable speed motor 13, the bushing unit 15 connected to the chain 12 starts moving forward, pushing the material 2 forward.

The material 2 left the material insertion table 4, and a horizontally rotating blade 14'' was installed between the two pairs of gold brushes 14' arranged in series.
While passing through the removing unit 14, the material 2 is moved over the continuous fusing table 5 while removing the slag attached to the material 2, and then the finished product length is cut in advance on the continuous product delivery table 6. The tip of the material 2 reaches the gauge stopper 22 set at .

Although not shown, a limiter (electrode) is provided on the contact surface (front side) of the gauge stopper 22, and when the end surface of the material 2 comes into contact with it, the variable speed motor 13 decelerates.
The end surface of the material 2 comes into close contact with the surface of the gauge stopper 22 because it hits the gauge stopper 22 and is pressed with a constant torque even if the speed becomes low.

Then, the variable speed motor 13 stops for a period of time (which can be adjusted by a timer).

) While they are in close contact, the material 2 is pressed against the side guide rollers 17 using a pusher 20 installed next to the fusing table 5 until the fusing is completed.

When pressed, the gauge stopper 22 is immediately opened and kept at the position 22' (see Figure 7), the variable speed motor 13 is reversed, the bushing unit 15 is moved backward, the gauge stopper 22 is also converted, and the material 2 is The bushing unit 15 is released from the pressure and its both ends are made loose.

Then, fusing is started.

That is, by releasing both ends of the material 2, thermal distortion (generally referred to as driving) is performed to remove the earth by fusing.

) needs to be released.

Thus, as shown in FIGS. 4 and 7, a plurality of torches are ignited, and the circular cutting torch 18 cuts a semicircle, and the straight cutting torch 19 cuts a straight line, following the respective shapes.

In addition, the fusing table 5 has removable free ball plates 16 in which a plurality of free balls 16' are embedded and is arranged in parallel, and the free ball plates 16 in the flame passage portion of the torch 18 and 19 are removed in advance. It is configured so that it can be done.

When the melt cutting is completed, the product 2' passes under the converted gauge stopper 22, is placed on the product delivery conveyor 6, and is conveyed to the tipping viper 7, where it is piled.

When one cycle of fusing is completed and the product has passed, the gauge stopper 22 returns to its original position and the variable speed motor 13
restarts the start, advances the product 2' by means of the bushing unit 15, and repeats the process described above (melting).

In this way, when the fusing operation is repeated and it becomes impossible for the pushing unit 15 to push the material 2 forward any longer, the variable speed motor 13 is once reversed by a command from a limiter (not shown). The bushing unit 15 is moved back to the origin, a new material 2 is received from the material supply table 3, and the product 2' is advanced.

The above pattern is repeated to automatically cut the steel plate.

Note that the control command can be executed in a fully automatic manner by a combination of a limiter and a timer, or by an NC.

As described above, the present invention has a simple configuration and can cut steel plates of irregularly shaped small items, which conventionally required a large amount of man-hours, with significant labor savings, and therefore brings about practical benefits such as cost reduction and productivity improvement. It is something.

In the drawing, 21 is a guide plate, 23 is a fusing line (straight line)
, 24 is a fusing wire (semicircular wire), 25 is a screw, 26 is a pusher, 27 is a side guide, 28 is a chain, 29 is a lifter, 30 is a rail, 31.31' is a stock table, 32.32' is a chain , 33 is a pit.

[Brief explanation of drawings]

Figures 1 to 7 show examples of the present invention, in which Figure 1 is a plan view of the entire line configuration, Figure 2 is a side view of the same, and Figure 3 is a partial perspective view of three parts of the material supply table. , FIG. 4 is a perspective explanatory view showing the work of semicircular fusing, FIG. 5 is a plan view showing an applied example of material insertion using the bushing unit 15, and FIG. 6 is a plan view showing an example of fusing on the fusing table 5. 7 are explanatory views of the same side, FIG. 8 is an illustrative view of the shape of a substitute product according to the present invention, and FIG. 9 is a schematic explanatory view showing a conventional fusing procedure.

Claims (1)

[Scope of utility model registration request] Regarding automatic steel fusing equipment, which consists of element mechanisms such as material feeding table, material insertion table, slag removal device, fusing table, gauge stopper, product delivery conveyor, and lifting piler in a series of lines, multiple rows of Equipped with a chain drive device, and a material insertion table connected thereto, a bushing unit is coupled to the chain (coupled to the motor) on the material insertion table,
A pusher is installed next to a fusing table connected to a slag removal unit connected to a material insertion table, a removable free ball plate with a plurality of free balls embedded in it is arranged in parallel, and it is also equipped with a torch for circular cutting, etc. , a steel sheet automatic cutting machine characterized in that a finished product carrying out conveyor is arranged in line with the melt cutting table, it is equipped with a gauge stopper to set the finished product length in advance, and a lifting piler is provided in line with the finished product carrying out conveyor for cutting. Fusing device.