JPH0417848B2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application: The present invention provides a method for rationally inverting and stacking shaped steel sections as a pretreatment for supplying sized steel sections to equipment for bundling them. Regarding. This is an inversion processing method that is particularly effective for processing small section steel.

Prior art: When handling shaped steel products cut to a regular length (hereinafter simply referred to as "shaped steel"), they are stacked and bundled for convenient transportation. When stacking them, it is necessary to invert them depending on the external shape of the shaped steel.

Therefore, as a pre-treatment process for this bundling, in the middle of the conveyor line, the materials to be bound are intermittently fed through a counting section and moved in a reverse direction according to the work procedure, and the required amount is bundled at once. I am trying to send it to the department. The reversing means for aligning and sending out the materials to be bound may be a reversing method using a swing arm equipped with a magnet, or a lifting magnet, as disclosed in, for example, Japanese Patent Laid-Open No. 62-27231. A method is known in which a part of the shaped steel on the transfer machine is pushed up from below in combination with a magnet, the direction is changed, the shape is attracted to the magnet, and the shape is reversed.

Problems to be solved: In the former method, since a swing arm is used, the movement interval at the reversing part becomes large, and a heavy object is swung around, which requires a large amount of power. Operating costs also increase.

The latter method is good for handling comparatively large shaped steel sections, but it is difficult to expect smooth operation when processing small shaped steel sections, which is problematic.

For this reason, in the conventional method, the reversal operation for aligning and bundling small steel sections is difficult.
There are many problems in terms of workability, economy, etc.

Means for Solving the Problems: The present invention solves the above-mentioned problems and provides a reversing operation method for bundling that allows even small steel sections to be rationally and accurately reversed and stacked. Our goal is to provide the following.

That is, in the present invention, the steel materials to be processed that are sent by the conveyor are counted in the section up to the reference stop position, and after the required number of steel materials are lined up adjacently, they are moved in a circular motion across the top and bottom of the conveyor line at the required speed. A comb-shaped intermediate displacement operating body that lifts the steel material onto the transfer table of the transfer machine and moves forward a predetermined pitch by a certain amount only when a reversal operation is necessary. The object to be processed is brought into contact with its downward facing surface on the rear side of the center of gravity, and is caused to fall into the rectangular notch of the intermediate displacement operating body so that the outer surface of the flange on one side of the object to be processed faces downward, and then the transfer stage is raised. At the intermediate displacement operating body part, the intermediately displaced workpieces are scooped up, and at a position where they have been advanced by a predetermined pitch, they are transferred by a serrated final reversing operating body that moves up and down in the same way as the intermediate displacement operating body. The lower surface of the steel material to be treated in an upright state near the rear end of the flange portion received from the table is brought into contact with the apex of the sawtooth and turned upside down.Then, the material to be bound in a steady state is lifted by a transfer machine and sent out first. Combine and stack on top.

In the method of the present invention, in order to stack the angle irons, they are transported so that the tip of the flange is in contact with the conveying surface of the conveyor, and after counting and alignment, one flange part is erected in the advancing direction by the intermediate displacement operation part. Then, at the final reversal position, it is reversed in the opposite direction to the initial position, and sent to the stacking position.

In addition, in order to stack channel steel or similar shaped steel, they are transported with the web side positioned on the transport surface, and after counting and alignment, the intermediate displacement operation section is used to position the web side in the direction of travel. It is turned over so that it stands up backwards, and then, at the final reversal position, it is reversed in the opposite direction to the initial position, and sent to the stacking position.

Effect: For example, when stacking angle iron,
The shaped steel sections that are sized and sent one after another by the conveyor are counted at a position in front of the transfer table of a transfer machine that repeats circular motion intermittently at a predetermined time. Feed the required number of feeds with the reference stopper position at the front end within the time given below the conveyance surface. The transfer table moves circularly at a predetermined radius while keeping its upper surface horizontal, and scoops up the required number of shaped steel sections that are aligned on the conveyor transfer surface. At this time, each section steel is aligned with the flange tip facing down.

A comb-shaped intermediate displacement operating body is disposed at the position where the transfer table moves below the transfer reference plane in one cycle so as to be able to move up and down intermittently without interfering with the movement of the transfer table. When reversal is required, this intermediate displacement operating body is raised to a predetermined height. Incidentally, at the same time as this intermediate displacement operating body, the final reversing operating body disposed at the front position corresponding to the transfer pitch of the transfer table also rises.

During the descending process, the inner end of the rear flange comes into contact with the comb teeth of the intermediate displacement operating body, and as the transfer platform descends, the shaped steel is scooped up by its own weight. The shaped steel enters the valley between the comb teeth and is rotated 135 degrees, forming an inverted L-shape with respect to the direction of travel. When the transfer table rotates for one cycle and rises, the section steel displaced by the intermediate displacement operating body is directly scooped up onto the transfer table and transferred onto the next final reversing operation body. The lower surface of the shaped steel transferred onto the final reversing operation body contacts the serrated peaks of the reversing operation body, and as the transfer platform descends, the ridgeline of the shaped steel turns into the valley. It settles down and becomes inverted.

The angle-shaped steel thus inverted is lowered by a waiting lifting magnet to attract and lift it, and is assembled and stacked on top of the previously aligned shaped steel in a steady position.

In addition, for sections to be sent to the stacking position without being turned over, the required number of steel sections are received on the transfer table with the ridges facing upward, and then they are intermittently fed forward to the stacking position. and alternate with the reversing operation.

If the shaped steel to be handled is a channel steel, the shaped steel that is sized and sent one by one on a conveyor (in this case, the web is supported on the conveying surface) is counted in the same way as for angle shaped steel. When the required number of webs are arranged at once above the transfer table of the transfer machine, and the webs scooped up by the transfer table are moved to the position of the intermediate displacement operating body, the rear half of the web comes into contact with the comb teeth, and the shape is The steel enters the valley between the comb teeth and stands up. Next, when the transfer stage rises, the section steel that has become upright is scooped up and transferred onto the final reversing operation body, and the lower surface of the section steel that is in the upright state closer to the web abuts against the serrated peaks of the reversal operation body. As the supporting transfer table descends, the center of gravity moves forward, and as a result, the channel steel becomes inverted.

Therefore, the upper surface of this inverted channel steel is attracted by a lifting magnet, lifted up, and transferred to a stacking position. For sections to be sent to the stacking position without being turned over, the required number of sections are counted in the same position and processed in the same manner as angle sections.

Examples: Hereinafter, the present invention will be explained with reference to the drawings of examples.

FIG. 1 shows a schematic diagram of the manner in which angle iron is handled.

The shaped steel 20 that has been sized to the required dimensions and sent by the conveyor 1 is placed at a counting position 2 on the conveyor line.
A transfer machine placed at the end of the conveyor 1 controls the shape bars 20 to be fed one by one at a required interval in front of the conveyor 1, and counts the number of shaped bars 20 to be moved using, for example, a photo sensor. 3. The reference stopper 4 provided at the upper position prevents the movement of the section steel at the forefront position, and thereafter the required number of sections are aligned.

When the required number of sections are aligned, the transfer table 3' of the transfer machine 3 rises above the conveyor transfer surface 1'. This transfer table 3' is designed to move in a circular motion with a required radius, and is relatively narrow and operates at a position away from the running section of the transport body of the conveyor 1 (usually a conveyor chain). are arranged in parallel. As the transfer table 3' rises, the aligned shaped steel 20 is scooped up as it is, and as it is, the transfer table 3' turns downward due to the circular movement (as shown by the trajectory a).
When it reaches a position where it has advanced a preset required pitch (a length slightly shorter than its circularly moving diameter), it is formed on the comb teeth that have been raised from below the conveyance surface 1' by separate power. At the tip of the comb teeth 5' of the intermediate displacement operating body 5, as shown in FIG.
By bringing the lower end of the flange 21 on the rear side in the traveling direction into contact with each other, as the transfer table 3' gradually descends, each section steel 20 is moved by its own weight to form the comb teeth 5' of the intermediate displacement operating body 5. It enters into the rectangular cut valley 5'' between the parts, is received by the upper surface of the alignment roller table 6 which is arranged in parallel on the horizontal line at the relevant position, and is rotated by about 135 degrees as shown by the chain line A, The flange portion 21', which was located on the front side with respect to the forward movement direction, is now in a downward position.

In this way, when the transfer table 3' starts the next upward stroke, the shaped steel 20, which has been once separated from the transfer table 3', is placed in an inverted L-shape position on the transfer table 3' (first half).
When it is scooped up by
At that position, the final reversing operation body 7, which has a required number of saw teeth 7' formed in an equilateral mountain shape, protrudes, so that each section 20 has its lower sideward flange 21' By bringing the tip of the section 20 into contact with the ridge of the sawtooth 7', the shaped steel 20 slides into the trough 7'' of the final reversing operation body 7 under its own weight as the transfer table 3' descends, as in the previous step. , eventually reverses.

The shaped steel 20 that has been inverted in this way is attracted to the plate surface by lowering the lifting magnet 50, and is moved to a stacking position installed on the side.
Stack the inverted sections of the shaped steel sections aligned with the ridges facing up in each valley section (the second section).
(see figure).

Note that for sections that are not reversed, the intermediate displacement operating body 5
Further, the final reversing operation body 7 is lowered below the conveying surface 1', sent out by the transfer machine 3, and lifted up by the lifting magnet 50 to be stacked.

Next, a mode for stacking channel steel is shown in FIG. 3.

The shaped steel 30, which has been adjusted to the required dimensions and sent by the conveyor 1, is counted in the required number and arranged in a position above the transfer table 3' of the transfer machine 3, as in the case of the angle-shaped steel. In this state, the webs 31 are arranged with the web 31 side in contact with the conveying surface 1'.

Eventually, the transfer table 3' moves in a circular motion with a required radius (as shown by the locus a), and scoops up the aligned shaped steel 30 (see FIG. 3, F). When the transfer table 3' continues to descend and reaches a position where it has moved forward by the required pitch, the comb teeth of the intermediate displacement operating body 10 formed on the comb teeth, which have been separately raised by power from below the transfer surface, move forward. By bringing the rear lower surface of the channel steel web 31 in the traveling direction into contact with the tip of the channel steel 10', as shown in FIG. The intermediate displacement operating body 10 enters the comb teeth 10' and the valleys 10'', and is received by the upper surface of the alignment roller table 6 that is arranged in parallel on the horizontal line at the relevant position, as shown by the chain line H. The web 31 is placed in an upright position with one flange portion 32 positioned on the lower side.

In this way, the shaped steel 30 once deposited on the alignment roller table 6 is scooped up in an upright position when the transfer table 3' changes to the next upward stroke (as shown by trajectory b), and then changes to the downward stroke again. When it moves to the pre-pitch position, the final reversing operation body 11, which has the required number of scalene-shaped sawteeth 11', is moved to the pre-pitch position.
is protruding, so as shown in Figure 3,
Each section steel 30 comes into contact with the web side of the lower flange 32 against the ridge of the sawtooth 11'.
As in the previous process, the section steel 30 is moved by lowering the transfer table 3'.
The lower flange 32 falls into the valley 11'' due to its own weight, tilts forward, and finally turns over.

The shaped steel 30 that has been inverted in this way is lifted as it is by a lifting magnet (not shown), and combined with the shaped steel that has been aligned with the web facing down at the stacking position, for example, as shown in Fig. 4. Stack.

For steel sections that are not to be turned over, the required number is sent out in the same position as angle steel.

In addition, the dimensions between the comb teeth of the intermediate displacement operating body that are directly involved in the reversing operation, the pitch of the saw teeth of the final reversing operating body, etc. are based on the dimensions of the steel section being handled.
Use one that corresponds to the shape. Further, it is preferable that the tips of the comb teeth be rounded on the front side in the direction of movement, as shown in the above embodiment, so that the displacement can be performed smoothly.

Effects of the invention: As described above, according to the present invention, the workpiece can be shaped by a simple operation, without having to perform a separate rotation operation on the workpiece, while sequentially moving the workpiece through intermittent motion. Reversing steel is now easier. Therefore, in the case of small steel sections, it is possible to handle and reliably turn over a large number of sections at once, and therefore highly efficient turning work can be carried out.
It has become possible to further improve economic efficiency.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the reversal operation mode of angle iron according to the method of the present invention, Fig. 2 is a diagram showing the embodiment of stacked angle iron, Fig. 3 is a diagram showing the reversal operation mode of channel steel, and Fig. 4 The figure is a diagram showing an embodiment in which channel steel is stacked. 1...Conveyor, 1'...Conveyor conveyance surface, 2
...Counting position, 3...Transfer machine, 3'...Transfer table,
4... Reference stopper, 5, 10... Intermediate displacement operating body, 5', 10'... Comb teeth, 5'', 10''... Square cut valley, 6... Alignment roller table, 7, 1
1...Final reversal operation body, 7', 11'...Sawtooth,
7″, 11″…tanibe, 20…angle iron, 21,2
1'...flange part, 30...channel steel, 31...
Web, 32...flange section, 50...lifting magnet.

Claims (1)

[Claims] 1. Steel material to be treated is supplied by a conveyor,
After counting in the section up to the standard stop position and arranging the required number of pieces, they are scooped up on the transfer table of the transfer machine that moves in a circular motion across the top and bottom of the transfer surface, and selectively raised when they have moved forward a predetermined pitch. The comb teeth of the comb-shaped intermediate displacement operating body are brought into contact with the downward facing surface of the steel material on the rear side of the center of gravity of the steel material to be treated, and the steel material is tipped over into the rectangular notch of the intermediate displacement operating body to remove the steel material to be treated. The steel material is aligned so that the outer surface of one side of the flange faces downward, and then the transfer table is raised to scoop up the upright steel material to be processed, and the serrated final material is selectively raised again at a position where it has moved forward a predetermined pitch. An inversion of shaped steel products, characterized in that the lower surface of the upright steel to be processed near the rear end of the flange is brought into contact with the apex of the sawtooth on the inversion operation body, and the steel material is inverted and inverted, and then transported by a transfer machine. Method.