JPH08238459A - Length selecting apparatus for long material - Google Patents

Abstract

PURPOSE: To easily carry out visual inspection of pipes by lowering the height of an inlet side table to which pipes are to be charged in the case where the length of pipes is sorted after surface cleaning treatment. CONSTITUTION: An inlet side table to supply pipes to a transportation line which transports pipes in the longitudinal direction is installed in the inlet side of the line and an endless chain transportation body 43, which is a lifting mechanism to lift pipes on the table and transport the pipes to the transportation line, is installed between the table and the transportation line, and the height of the table in the inlet side to the transportation line is lowered and thus visual inspection of the pipes on the inlet side table can easily be carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a length selecting device for automatically dividing long objects such as pipes and shafts having different lengths into groups of the same length after a keren treatment or the like. .

[0002]

2. Description of the Related Art For example, steel pipes of various lengths are used for assembling scaffolds and formwork in construction work. However, when the pipes are collected after the construction work, the pipes are in a mixed state. Therefore, when organizing, managing, and reusing pipes, it is necessary to sort them by length after the kelen treatment.

Manual selection of pipes of various lengths requires a great deal of labor and time, and the selection cost is high. I proposed a sorting device.

By the way, the recovered pipes are a mixture of non-defective products that do not require kerlen treatment, defective products that require kerlen treatment, and defective products that have been damaged or the like. There must be.

In the conventional length selecting device, the pipe is supplied to the line for the skeletal treatment by putting the pipe on an inlet side table provided on the inlet side of the transfer line, and using the most advanced pipe of this table. Since it is supplied to the transfer line by the kicker, the entrance table has a tall structure that matches the transfer surface of the transfer line.

[0006]

As described above, when the entrance table is tall, there is a problem that it is difficult to perform a visual work to remove defective products from the pipes randomly placed on the entrance table.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an apparatus for selecting a length of a long object in which the height of the entrance table can be reduced and the visual inspection of the inserted pipe can be easily performed. .

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to an entrance side table for supplying a long object to the entrance side of a conveying line for feeding the long object in the length direction. Is provided, a working machine for long objects is arranged on the transfer line,
In a long object length selection device having a long object length selection mechanism at the front position in the long object transfer direction with respect to this working machine, between the input table and the transfer line or the transfer line and the length. At least one of the sorting mechanisms is provided with a lifting mechanism that lifts and transfers a long object.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

First, pipes for construction work which are objects of selection are roughly classified into pipes for scaffolding and pipes for thick timber. There are two types of scaffolding pipes with and without pins. There are fixed-size pipes with specified dimensions, straightening and scraping pipes, non-standard end-pipes, non-reusable defective pipes, etc. The length pipes can be sorted by length.

The drawings show several different examples of the sorting device, which will first be described on the basis of the first example of FIGS.

FIG. 1 is an overall plan view, and FIG. 2 shows a sectional structure of the above pipe supply mechanism.

In FIG. 1, the pipe supply mechanism 1 serving as the entry table is provided with a two-step stopper 41 in front of the receiving table 2 for randomly inserting the pipe A so that the pipe A can be visually inspected on the receiving bucket 2. As well as
The screw shafts 42 arranged in parallel to the ends of the pipes A are used, and the pipes A of the guide path 3 are picked up one by one by the claws of the endless chain transfer body 43, which is a lifting mechanism, and fed onto the screw shafts 42 group. There is.

A sensor 44 for detecting the number of passing pipes A for each length is arranged above the end aligning screw shaft 42 so that the number of pipes can be managed.

When the number of pipes A is to be detected for each length, the sensors 44 corresponding to the lengths of the pipes are arranged corresponding to the lengths of the pipes with reference to the end-alignment stopper, and pass through. Detect the number of pipes by length.

Further, when simultaneously detecting non-standard end length pipes, two sensors are used to detect the length of each pipe, and the two sensors are bordered by the end of the reference length pipe. Placed at a predetermined distance on both sides, if only one sensor does not detect the passing pipe or if both sensors detect the pipe, it is judged as an end pipe, and the number of each passage is adjusted to the end stopper. The number of end pipes is detected by the number detection sensor arranged in close proximity to.

At the tip of the end aligning screw shaft 42, a good product conveying line X, a forced cleaning line Y, and a defective product storing section Z are provided.
Is set, and both lines X and Y are formed by a roller conveyor 9 that feeds the pipe A in the axial direction, and a truck 10 for storing the pipe is arranged in the defective product storage portion Z.

On the roller conveyor 9, the first movable guiding piece 11 for transferring the pipe discharged from the end aligning screw shaft 42 to the non-defective product conveying line X, the same kerren straightening line Y or defective product storage. The second movable guiding piece 12 for migrating to the part Z is arranged, and these guiding pieces 1
By operating 1 and 12, each pipe can be sorted into a non-defective pipe, a keren straightening pipe, and a defective pipe.

At the front position of the roller conveyor 9 on the non-defective product line X and the cleansing line Y, both lines X, Y
The delivery side single take-up device 13 that receives the pipes sent along the line and supplies the pipes to the sorting mechanism 21 one by one is arranged so as to be a part of the line. Is provided.

As shown in FIG. 3, the delivery-side single take-up device 13 has pipe guiding gutters 15 and 16 having lower front surfaces open along the non-defective line X and the kelen straightening line Y, and both guiding gutters 15 are arranged. , A downward tilting sloping base 17 is provided below
At the tip of the tilt table 17, there is arranged a take-out machine 18 that intermittently lifts the pipes rolling on the tilt table 17 one by one and sends them to the sorting mechanism 21 in front.

The unloader 18 is formed by arranging a large number of endless chains 19 side by side, and projecting claws 20 for lifting the pipe A at regular intervals on each chain 19, and the tilt table 1
The pipes A parallel to each other on the 7 are sequentially lifted.

In the sorting mechanism 21, a large number of horizontal bars 22 are arranged in parallel, and the pipes A are dropped between the horizontal bars 22, and a large number of screw shafts 24 are installed on the sorting zone 23. The pipes are arranged so as to be fed in the parallel direction of the sorting zone 23, and a positioning guide 25 for pressing one end of the pipe A is provided on one end side of the sorting zone 23 group, and the pipe is fed forward by the screw shaft 24. The one end moves while slidingly contacting the positioning guide 25, and serves as a reference for length selection.

The screw shaft 24 is a reference screw shaft 24a which is arranged in parallel with a position close to the positioning guide 25.
And the inclined screw shaft 2 that diagonally crosses over the sorting zone 23.
4b and a plurality of short screw shafts 24c arranged at the rear position of the inclined screw shaft 24b, and the sorting zone 23 between the reference screw shaft 24a and the inclined screw shaft 24b is located in the front, and becomes longer in sequence. There is.

Therefore, the pipe A whose one end is fed to the positioning guide 25 by the abutting screw shaft 24 is released from the support by the inclined screw shaft 24b when it faces the selecting zone of the corresponding length, so that the selection is performed. It will fall into the zone and the length can be automatically selected simply by transferring each pipe.

Below each of the sorting zones 23, as shown in FIG. 5, an intermediate shelf 31 for stocking the pipe A dropped from the zone 23 is provided.
A take-out mechanism 32 for carrying out the paper is provided.

In the case of FIG. 5, the intermediate shelf 31 shows two different examples. The intermediate shelf 31 on the right side of the figure is formed by bending the pipe rolling path in a zigzag shape, and the left side of the figure. The intermediate shelf 31 is formed in a hopper shape with the lower part squeezed, and the pipes falling from the sorting zone are sequentially stocked.

The pipe A is provided at the lower end discharge portion of the intermediate shelf 31.
Is provided with a stopper mechanism 33 for controlling the discharge and stop of the pipe A, and by opening the lower end discharge port of the intermediate shelf 31 by this stopper mechanism 33, the trolley 32a of the take-out mechanism 32 standing immediately below can be filled with the pipe A. .

As described above, when the intermediate shelf 31 is installed in the lower part of each sorting zone 23, the dolly 32 of the take-out mechanism 32 is provided.
Sorting zone 2 when the pipe becomes full and is discharged
The pipe falling from 3 can be temporarily stored, and it is not necessary to stop the operation of the sorting device.

6 to 9 show specific structures of the intermediate shelf 31 and the take-out mechanism 32.

In FIG. 6, the intermediate shelf 31 on the left side of FIG. 6 is for a short pipe, and the zigzag width between the folded portions on both sides is shortened in the pipe rolling path 31a formed in a zigzag shape, and each folded portion is formed into a square shape. By forming a small resistance to the movement of the short pipe A rolling on the rolling path 31a, the short pipe having good rolling property is prevented from inclining in the rolling direction, and the short pipes are arranged in parallel. I am making sure that I can stock it.

Further, the middle shelf 31 on the right side of the figure is for a long pipe, and the width between the folded portions on both sides of the pipe rolling path 31a is lengthened, and the folded portions have an arc shape, so that the rolling property is poor. The long pipes can be rolled smoothly.

Next, the carriage 3 constituting the take-out mechanism 32.
2a includes a plurality of upwardly U-shaped pipe holding frames 61 fixed on the carriage 32a in an inclined state, and a plurality of movable pipe holding frames 62 that are also upwardly U-shaped and detachably attached in an inclined state. When the carriage 32a is placed just below the intermediate shelf 31, the pipe A discharged from the intermediate shelf 31 is stored in both the holding frames 61 and 62.

As shown in FIG. 10, the movable pipe holding frame 62 serves as a shape-retaining frame when the pipe A on the carriage 32a is bound by the wire 63 and taken out, and the upper opening of the holding frame 62 is removable. The lid 64 can be closed, and the pipe A group that is lifted up by the wire 63 and conveyed is held in a square shape.

As shown in FIG. 8, the fixed pipe holding frame 61 is provided with an aligning plate 65 for stacking pipes on the side wall on the inclined downward side.

The alignment plate 65 is provided with a plurality of arcuate recesses 66 at the side edges projecting inward of the holding frame 61, the arcuate recesses 66 into which a part of the pipe A fits, and which are arranged vertically in accordance with the stacking pattern of the pipes. The end shapes of the pipes A that are stored and stacked in the frames 61 and 62 are aligned so that the stored pipes can be stacked smoothly.

As shown in FIG. 8, the aligning plate 65 is movable slantingly upward along the slanted elongated hole 67, and when the pipe A is taken out from the holding frame 61,
The alignment plate 65 escapes upward as shown by the alternate long and short dash line in the figure, and the recess 66 does not hinder the removal of the pipe A.

In FIGS. 6 and 9, the pipe guide arm 68 is swingably suspended at the lower end of the pipe rolling path 31a in the intermediate shelf 31, and the pipe guide arm 68 is suspended from the lower end of the pipe rolling path 31a into the holding frames 61, 62. The falling pipe A is guided toward the downward side of the holding frames 61 and 62 so that the pipes A can be stacked smoothly.

This pipe guide arm 68 is used for the carriage 32.
When moving a, the holding frames 61 and 62 may be allowed to escape outward from the moving range as shown in FIG.

The sorting mechanism 21 is composed of two types of pipes,
For example, the scaffolding pipe has no pin and the scaffolding pipe has a pin, or the scaffolding pipe has thick end pipes and the like, which are separated from each other so that the lengths of the two types of pipes can be separately selected. The sorting mechanism 21 is extended to the center of the upper surface of the sorting mechanism 21, and the sorting mechanism 21 is arranged such that the two pipes are arranged in opposite directions from the central portion so that the pipe feeding directions are opposite to each other. The sorting mechanism 51 is provided at the tip of the sorting mechanism 2
Corresponding pipes are supplied to Nos. 1 and 21. A sensor 46 that detects the type of pipe based on the outer shape or the presence or absence of a pin and operates the sorting mechanism 51 may be arranged at the tip of the unloader 18.

In the second example shown in FIGS. 11 to 13, the reference screw shafts in the selection mechanism 21 are arranged in two upper and lower stages, for example, the lower reference screw shafts 24a are used for scaffolding pipes, and the upper reference screw shafts 24a are used. Is used for heavy-weight pipes, and a single sorting mechanism 21 is capable of sorting two types of pipe lengths. Pipe A is used as a vertical reference between the output side single take-up device 13 and the sorting mechanism 21. Screw shaft 2
Distribution mechanism 51 for supplying to either 4a or 24a
Is provided.

The sorting apparatus according to the present invention has the above-mentioned structure. The pipe A put into the receiving packet 2 is taken out onto the guide path 3 of the receiving bucket 2 and is picked up by the endless chain carrier 43 to be screwed. Supplied on 42,
At the tip of the screw shaft 42, the pipe A is distributed to the corresponding part of the non-defective product conveying line X, the cleansing line Y, and the defective product storage Z. It should be noted that on the receiving bucket 2, the pipe A is visually inspected for non-defective products, kerren-corrected products, and defective products.

Good product conveying line X or cleansing line Y
The pipes A supplied to the feeding mechanism are fed to the exit side single take-up device 13 by the roller conveyor 9, and the pipes A are fed one by one to the sorting mechanism 21 by the single take-up device 13 and sent forward by the screw shaft 24. When the pipe A faces the sorting zone 23 of the corresponding length, the support is released and falls, and the intermediate shelf 31
Stocked inside.

The pipe in the intermediate shelf 31 is a stopper mechanism 3.
When the carriage 3 is opened, it is stored in the carriage 32a of the take-out mechanism 32 which stands by immediately below and is carried out to a desired place by the movement of the carriage 32a.

[0044]

As described above, according to the present invention, since the mechanism for lifting a long object is provided between the entrance table or the conveying line and the sorting mechanism, the height of the entrance table can be reduced to increase the length. Objects can be supplied to the transfer line, and therefore, visual inspection work of long objects on the entrance table can be easily performed in a comfortable posture.

[Brief description of drawings]

FIG. 1 is a plan view of a sorting device according to the present invention.

FIG. 2 is a side view of the pipe supply mechanism portion of the above.

FIG. 3 is a side view of the single delivery side picking device in the above.

FIG. 4 is an enlarged plan view showing a main part of a sorting mechanism.

FIG. 5 is an enlarged sectional view of an intermediate shelf portion in the above.

FIG. 6 is a front view showing a specific structure of an intermediate shelf and a take-out mechanism.

[Fig. 7] Side view of the above

FIG. 8 is an enlarged front view of a main part of a pipe holding frame.

FIG. 9 is a front view of the take-out mechanism when taking out the pipe.

FIG. 10 is a perspective view showing a binding state of pipes.

FIG. 11 is a plan view showing a second example.

FIG. 12 is a side view of the sorting mechanism in the above.

FIG. 13 is a front view of a sorting mechanism.

[Explanation of symbols]

 1 Pipe Supply Mechanism 2 Receiving Bucket 3 Taxiway 6 End Alignment Roller Conveyor 13 Outlet Single Picking Device 14 Keren Straightening Machine 21 Sorting Mechanism 23 Sorting Zone 24 Screw Shaft 25 Positioning Guide 32 Extracting Mechanism 43 Endless Chain Carrier

Claims (1)

[Claims] 1. An entrance side table for supplying a long product to the line is provided on the entrance side of a conveyance line for feeding the long object in the longitudinal direction, and a working machine for the long object is arranged on the conveyance line. In a long object length selection device that has a long object length selection mechanism at the front position in the long object transfer direction with respect to the work machine, between the input table and the transfer line or the transfer line and the length selection device. A length selecting device for a long object, wherein a lifting mechanism for lifting and transferring a long object is provided in at least one of the mechanisms.