JPH08238460A - Length selecting apparatus for long material - Google Patents

Abstract

PURPOSE: To provide a length selecting apparatus for long materials by which pipes can be stored in a saved space by positioning one ends of long materials in the middle of transportation of pipes 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 a surface preparing and treating apparatus 14 is installed in the middle of the line and a length selecting mechanism 21 is installed in the outlet side of the line. A roller conveyer 6, which becomes a gathering-in- one-side system, is installed between the inlet side table and the transportation line and before supplied to the transportation line, pipes are gathered in one side by the conveyer 6 and in the case where the pipes are stored in a storage frame, one end parts of the pipes are made to be the reference, so that the space for storage can be saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a length selection device for automatically dividing long objects such as pipe-shaped objects having different lengths into groups of the same length after a keren treatment or the like. It is a thing.

[0002]

2. Description of the Related Art For example, steel pipes of various lengths are used for building work to assemble scaffolding and formwork. Since they are in a mixed state, they must be sorted by length after reprocessing the pipe when reusing the pipe.

Manual selection of pipes of various lengths requires a great deal of labor and time, and the cost for selection is high. Therefore, the applicant of the present invention describes the length of pipes according to Japanese Patent Application No. 61-55570. Proposed a sorting device.

By the way, the collected pipes having different lengths are mixed, and in order to automatically perform the length selection from the squeeze process, the input table is used for the transfer line and the transfer line is used for the selection mechanism. It is necessary to transfer the pipe to and to remove the defective pipe between the table on the input side and the transfer line.

By the way, in the conventional length selecting device, since the pipe thrown into the entrance table is simply supplied to the carrying line as it is, the short pipe is automatically removed between the entrance table and the carrying line. In this case, there is a problem that the position of the short pipe in the length direction is not determined and a wide space is required to receive the short pipe.

Further, even when the pipe is stored after passing through the sorting mechanism, there is the same problem as described above.

Therefore, an object of the present invention is to perform width adjustment of a long object at a portion before storing a long object in a storage frame.
An object of the present invention is to provide a length selection device for long objects which can store pipes in a small space.

[0008]

In order to solve the above problems, the invention of claim 1 supplies a long product to the entrance side of a conveying line for feeding the long product to this line. A long object is provided with an entry-side table, a work machine for long objects is arranged on the transfer line, and a length selection mechanism for long objects is provided at a front position in the moving direction of the work machine. In the length selection device, a configuration is provided in which a width-shifting mechanism that supports and transfers a long object is provided in front of the long object storage frame.

[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 sorting devices, which will first be described on the basis of the first embodiment 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, a pipe supply mechanism 1 serving as an entrance table is provided with a forward descending guideway 3 for rolling the pipe A in front of a receiving bucket 2 for randomly inserting the pipe A. Can be swung up and down by being lifted by the chain block 4 or the like, and the pipe A can be rolled out onto the guide path 3 at the time of lifting.

A fixed cutout kicker 5 that swings by a cylinder is provided in the middle of the guide path 3, and the guide paths 3 are arranged in a plane.
A certain number of upper pipes A are discharged to the front by a manual operation, and an end-aligning roller conveyor 6 serving as a width-shifting mechanism is arranged in front of the guide path 3 in an inclined downward slope and transferred into the conveyor 6. By bringing the pipe A into contact with the stopper 7 provided at the end of the conveyor 6, the length direction is aligned with one end as a reference, and an end pipe by visual observation,
Make it easy to select non-defective pipes, pipes that require keren, etc.

A single picking kicker 8 for picking up the foremost pipe on the conveyor 6 is provided at the tip of the descending slope of the end-aligning roller conveyor 6, and in front of the kicker 8, a non-defective product conveying line X and a kerren straightening line Y are provided. The defective product storage unit Z is set, and both lines X and Y are formed by the roller conveyor 9 that feeds the pipe A in the axial direction, and the defective product storage unit Z stores the truck 10 (long product storage frame). ) Has been placed.

On the roller conveyor 9, a first movable guiding piece 11 for transferring the pipe discharged from the single picking kicker 8 to a non-defective product conveying line X, and also a kerren straightening line Y or a defective product storage section. A second movable guide piece 12 for squeezing out to Z is arranged, and these guide pieces 11, 1
By operating 2, the pipes can be sorted into non-defective pipes, keren straightening pipes, and defective pipes.

In front of the roller conveyor 9 on the non-defective product line X and the cleansing line Y, both lines X and Y are provided.
An outlet-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, and a kelen straightening machine 14 is provided in the middle of the kelen straightening line Y.

As shown in FIG. 3, the delivery-side single take-up device 13 has pipe guide gutters 15 and 16 whose lower front faces are open along a non-defective line X and a keren straightening line Y, and both guide 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 fixed intervals in each chain 19, and the tilt table 1
The pipes A parallel to each other on the 7 are sequentially lifted.

The sorting mechanism 21 has a large number of horizontal rails 22 arranged in parallel with each other, and the pipes A are dropped between the horizontal rails 22. A large number of screw shafts 24 are provided on the sorting zone 23 to secure the pipes A. 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 of the inclined screw shaft 24b, and the selection zone 23 between the reference screw shaft 24a and the inclined screw shaft 24b is located in the front, and becomes longer sequentially. 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 comes into contact with 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 pipes 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.

A 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 shelves 31 are installed in the lower portion 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.

19 to 22 show specific structures of the intermediate shelf 31 and the take-out mechanism 32.

In FIG. 19, an intermediate shelf 31 on the left side of FIG. 19 is for a short pipe, and a zigzag-shaped pipe rolling path 31a has a zigzag width shortened between the folded portions on both sides and each folded portion has a square shape. Formed and rolling path 31a
By giving a little resistance to the movement of the short pipe A rolling, the short pipe with good rolling property is prevented from inclining in the rolling direction, and the short pipes can be reliably stocked in parallel. There is.

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 upward U-shaped pipe holding frames 61 fixed on the carriage 32a in an inclined state, and a plurality of movable pipe holding frames 62 detachably attached in an inclined state, respectively. When the carts 32a are placed one by one and are located directly below the intermediate shelf 31, the pipe A discharged from the intermediate shelf 31 is stored in both holding frames 61 and 62.

As shown in FIG. 23, the movable pipe holding frame 62 serves as a shape-retaining frame when the pipe A on the carriage 32a is bound and taken out by the wire 63, and the upper opening of the holding frame 62 is detachable. 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. 21, 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, which are fitted in a part of the pipe A, on the side edges protruding inward of the holding frame 61 so as to fit in 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. 21, the aligning plate 65 is movable obliquely outward and upward along the slanted long hole 67, and when the pipe A is taken out from the holding frame 61, the aligning plate 65 remains the same. The recess 66 does not interfere with the take-out of the pipe A by escaping upward as shown by the dashed line in the figure.

19 and 22, the pipe guide arm 68 is provided at the lower end of the pipe rolling path 31a in the intermediate shelf 31.
Is swingably suspended, and the pipe A that falls from the lower end of the pipe rolling path 31a into the holding frames 61, 62 is held by the holding frames 61, 6
The pipe A is guided toward the downstream side 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 moved outward as shown in FIG.

The first embodiment of the present invention has the above-mentioned structure, and the pipe A thrown into the receiving bucket 2 is transferred to the guide path 3 by the raising of the receiving bucket 2 and is quantitatively determined by the fixed amount cutout kicker 5. The number of pipes A is discharged to the front edge-aligning roller conveyor 6, and the pipes A whose ends are aligned and juxtaposed in parallel at this position are visually selected, and the single-picker kicker 8 is used.
Pipe A, which is sent forward by
The pipe A is distributed to the corresponding part of the non-defective product conveyance line X, the kerren correction line Y, or the defective product storage Z while checking whether the product is defective.

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 housed in the carriage 32a of the take-out mechanism 32 which stands by immediately below and is transported to a desired place by the movement of the carriage 32a.

Next, a second embodiment shown in FIGS. 6 to 8 will be described. In the second embodiment and subsequent embodiments of the present invention, the same parts as those in the first embodiment shown in FIGS. 1 to 5 are designated by the same reference numerals, and only different parts will be described in detail. .

In this second example, pipe feeding is automated to improve workability. The pipe supply mechanism 1 is provided with a two-step stopper 41 at the tip of the receiving bucket 2 and has a receiving bucket. 2 allows the pipe A to be visually inspected, and uses a screw shaft 42 arranged in parallel with a width-shifting mechanism for aligning the ends of the pipe A so that the pipe A of the guide path 3 can be removed by the claws of the endless chain carrier 43. The screws are lifted one by one and supplied onto the screw shaft group 42.

A sensor 44 for detecting the number of passing pipes for each length of the pipe A is disposed 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 kinds of lengths of pipes are arranged corresponding to the lengths of the pipes with reference to the end aligning stopper, and the pipes are passed. Detect the number of pipes by length.

Further, when simultaneously detecting non-standard end length pipes, two sensors are used for detecting the length of each pipe, and the two sensors are bordered by the end of the reference length pipe. It is placed at a predetermined distance on both sides, and when only one sensor detects a passing pipe, it is judged as the reference length, and when the sensor does not detect the pipe or when both sensors detect the pipe. It is determined that the pipe is an end pipe, and the number of end pipes is detected by the number detection sensor arranged so that the number of passing pipes is close to the end alignment stopper.

When the end pipe is detected, the front gate 45 is opened in conjunction with the detection of the end pipe, and the truck 1 of the defective product storage section Z is opened.
Zero length pipes are automatically stored.

The sorting mechanism 21 is composed of two types of pipes,
For example, scaffolding pipes without pins and with pins, or scaffolding pipes and thick timber pipes are separated so that the lengths of two types of pipes can be selected separately. The sorting mechanism 21 extends to the center of the upper surface of the sorting mechanism 21, and the sorting mechanism 21 is arranged such that two pipes are arranged on opposite sides from the center so that the pipe feeding directions are opposite to each other. The sorting mechanism 51 is provided in the
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.

The third embodiment shown in FIGS. 9 and 10 is a combination of the sorting mechanism 21 of the first embodiment and the pipe supply mechanism 1 of the second embodiment. The same parts as those of the embodiment will be denoted by the same reference numerals to replace the description.

In the fourth embodiment shown in FIGS. 11 to 13, a screw shaft 42 serving as a width-shifting mechanism is provided between the take-out mechanism 18 and the sorting mechanism 21, and the reference screw shaft in the sorting mechanism 21 is vertically arranged in two stages. For example, the lower reference screw shaft 24a is used for scaffolding pipes, the upper reference screw shaft 24a is used for thick end pipes, and two sorts of pipe lengths can be sorted by one sorting mechanism 21. In addition, a distribution mechanism 51 for supplying the pipe A to either of the upper and lower reference screw shafts 24a, 24a is provided between the single delivery device 13 and the selection mechanism 21.

The fifth embodiment shown in FIGS. 14 and 15 is
The pipe supply mechanism 1 and the sorting mechanism 21 are vertically lapped to reduce the installation space. One end of the end-aligning roller conveyor 6 has a conveyor 52 for picking up an end ruler or a defective pipe and a kelen. The straightening machine 14 is arranged.

The sixth embodiment shown in FIGS. 16 to 18 is a simplification of the pipe supply mechanism according to the first embodiment, in which the receiving bucket 2 is of a fixed type inclined forward and downward, and the guideway 3 is provided. The state-of-the-art pipes are supplied by the push-up kicker 53 onto the kelen straightening line Y one by one.

[0051]

As described above, according to the present invention, since the long object width adjusting mechanism is provided in front of the long object storage frame,
The end of the long object can be positioned and supplied to the storage frame, and space saving of the long object can be achieved.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment 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 plan view showing a second embodiment.

FIG. 7 is a side view of the pipe supply mechanism in the above.

FIG. 8 is a side view of the sorting mechanism.

FIG. 9 is a plan view showing a third embodiment.

FIG. 10 is a side view of the sorting mechanism in the above.

FIG. 11 is a plan view showing a fourth embodiment.

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

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

FIG. 14 is a plan view showing the fifth embodiment.

FIG. 15 is a front view of the above.

FIG. 16 is a plan view showing a sixth embodiment.

FIG. 17 is a side view of the pipe supply mechanism in the above.

FIG. 18 is a side view of the sorting mechanism in the above.

FIG. 19 is a front view showing a specific structure of an intermediate shelf and a take-out mechanism.

FIG. 20 is a side view of the above.

FIG. 21 is an enlarged front view of the main part of the pipe holding frame.

FIG. 22 is a front view when the pipe is taken out by the take-out mechanism.

FIG. 23 is a perspective view showing a binding state of pipes.

[Explanation of symbols]

 1 Pipe Supply Mechanism 2 Receiving Bucket 3 Taxiway 6 Edge Aligning Roller Conveyor 13 Outlet Single Picking Device 14 Keren Corrector 21 Sorting Mechanism 23 Sorting Zone 24 Screw Shaft 25 Positioning Guide

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 having a long object length selection mechanism at the front position in the long object moving direction with respect to the work machine, the long object is supported in front of the long object storage frame. An apparatus for selecting a length of a long object, which is provided with a width-shifting mechanism for transferring the material.