JP3032770B2 - Length sorting device for long objects - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art For example, steel pipes of various lengths are used in construction work for assembling scaffolds and formwork. When the pipes are reused, they must be sorted by length after the kerane treatment.

[0003] The manual sorting of pipes of various lengths requires a great deal of labor and time, and the sorting cost is high. Therefore, the applicant of the present invention disclosed in Japanese Patent Application No. 61-55570. A sorting device was proposed.

[0004] By the way, the collected pipes are mixed with pipes having different lengths, and in order to automatically select the lengths from the Keren processing, a transport line from the entrance table and a sorting mechanism from the transport line. It is necessary to transfer the pipe to the pipe and remove the defective product between the entry table of the pipe and the transport line.

[0005] In the conventional length sorting apparatus, since only the pipe put in the entrance table is supplied to the transport line as it is, the short pipe is automatically removed between the entrance table and the transport line. In this case, there is a problem that the position in the length direction of the short pipe is not determined, and a large space is required to receive the short pipe.

[0006] The same problem as described above also occurs when storing pipes after passing through the sorting mechanism.

Therefore, an object of the present invention is to adjust the width of a long object in a portion before the long object is stored in a storage frame,
An object of the present invention is to provide an apparatus for selecting a length of a long object that can store a pipe in a small space.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 supplies a long object to an entrance side of a transport line for feeding a long object in the length direction. An entry-side table is provided, and a work machine for a long object is arranged on the transport line, and a long material sorting mechanism is provided at a front position in a moving direction of the long object with respect to the work machine. In the length sorting device, the movable guiding piece is actuated by a sensor that detects the type of the long object in front of the long object storing frame, and the long object is guided to the open side of the movable guiding piece, thereby obtaining a long object. A sorting mechanism that sorts the objects to the long object storage frame, and a width shifting mechanism that supports and transports the long objects are provided, and the width shifting mechanism supports the long objects and diameters the long objects. Transporting in the longitudinal direction while transporting in the longitudinal direction, and being disposed at the end of the transporting body, and providing the transport in the longitudinal direction. End of the long object is obtained by adopting the configuration that is formed by the contact with the stopper.

[0009]

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

First, pipes for construction work to be sorted are roughly divided into scaffold pipes and end pipes. Scaffold pipes are provided with pins and without pins. There are fixed length pipes with specified dimensions, pipes that require straightening or keeling, nonstandard pipes, non-reusable defective pipes, etc. Shaku pipes can be sorted by length.

The drawings show several different embodiments of the sorting device, which will first be described with reference to the first embodiment of FIGS.

FIG. 1 is an overall plan view, FIG. 2 is a side view of a pipe feeding mechanism of the above, and FIG. 3 is a side view of a sorting mechanism.

In FIG. 1, a pipe supply mechanism 1 serving as an entrance table is provided with a two-stage stopper 41 at a position near a tip end of a receiving bucket 2 into which pipes A are randomly charged. A pipe A is provided in front of the receiving bucket 2 so as to allow visual inspection.
A taxiway 3 is provided for descending forward and a taxiway 3 is provided.
Of the pipe A is lifted one by one by the claw of the endless chain carrier 43, and supplied to a width adjusting mechanism for aligning the ends of the pipe A. The width adjusting mechanism uses the screw shafts 42 arranged in parallel. ing.

The end-aligned screw shafts 42 are arranged such that the ends of the pipes A are brought into contact with stoppers 7 provided at the ends so that the lengths thereof are aligned with respect to one end, and the ends are visually inspected. Make it easy to sort pipes, good quality pipes, pipes that require keren, etc. Above the end alignment screw shaft 42, a sensor 44 for detecting the number of passing pipes for each length of the passing pipe A is disposed so that the number of pipes can be managed.

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

When simultaneously detecting non-standard end pipes, two sensors are used to detect the length of each pipe, and the two sensors are located at the end of the standard length pipe. It is located at a position on both sides, separated by a predetermined distance, 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, The number of the end pipes is detected by a number detection sensor which is determined to be an end pipe and the number of the passing pipes is arranged 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 bogie 1 of the defective article storage section Z is opened.
The end pipe is automatically stored at zero.

A non-defective product transport line X, a de-rectification line Y, and a defective product storage portion Z are set in front of the end alignment screw shaft 42. Both the lines X and Y are formed by a roller conveyor 9 for feeding the pipe A in the axial direction. A trolley 10 (long object storage frame) for storing pipes is disposed in the defective product storage section Z. When the end pipe is detected, the front gate 45 opens in conjunction with the detection, and the defective product storage section Z is opened. The end pipe is automatically stored in the carriage 10 of Z.

Both lines X and Y are located at a position in front of the roller conveyor 9 in the non-defective line X and the keratin correction line Y.
A delivery single-side picking device 13 that receives the pipes sent along and supplies the pipes one by one to the sorting mechanism 21 is disposed, and a Keren straightening machine 14 is provided in the middle of the Keren straightening line Y.

As shown in FIG. 4, the outlet-side single-drawing device 13 includes pipe guiding gutters 15 and 16 whose lower front surfaces are open along a non-defective line X and a de-rectification line Y. , 16 are provided with a downwardly inclined table 17 below the tip,
An unloader 18 is arranged at the tip end of the inclined table 17 to intermittently lift the pipes rolled on the inclined table 17 one by one and send the pipes to a sorting mechanism 21 in front.

The unloader 18 is formed by arranging a large number of endless chains 19 side by side, and protrudingly protruding claws 20 for lifting the pipes A at regular intervals on each chain 19.
The pipes A arranged in parallel on the pipe 7 are sequentially lifted.

The sorting mechanism 21 has a number of horizontal rails 22 arranged in parallel, and a plurality of screw shafts 24 are mounted on a sorting zone 23 where a pipe A falls between the horizontal rails 22.
Are disposed so as to be fed in the direction parallel to 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 is sent forward by the screw shaft 24. One end of the pipe moves while sliding on the positioning guide 25, and serves as a reference for length selection.

The screw shaft 24 is provided with a reference screw shaft 24a disposed in parallel with a position near the positioning guide 25.
And the inclined screw shaft 2 obliquely crossing 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. The longer the sorting zone 23 between the reference screw shaft 24a and the inclined screw shaft 24b is located, the longer it is. I have.

Therefore, when the pipe A whose one end is fed to the positioning guide 25 by the contact screw shaft 24 reaches the sorting zone of the corresponding length, the support by the inclined screw shaft 24b is released, and the sorting is performed. It will fall into the zone, and the length can be automatically sorted just by transferring each pipe.

In the case shown in the figure, the sorting mechanism 21 has two types of pipes, for example, a scaffold pipe having no pin and a pin, or
Separating each of the scaffold pipe and the end pipe, etc., so that the lengths of the two types of pipes can be separately selected,
The unloader 18 is extended to the center of the upper surface of the sorting mechanism 21,
The sorting mechanism 21 has two units arranged on both sides from the center so that the pipe feeding directions are reversed, and a sorting mechanism 51 is provided at the end of the unloader 18 immediately above the two sorting mechanisms 21 and 21, and the sorting mechanism 21 is provided. A corresponding pipe is supplied to 21. At the tip of the unloader 18, the type of pipe is detected based on the outer shape or the presence or absence of a pin, and a sorting mechanism 51 is provided.
May be arranged.

As shown in FIG. 5, intermediate shelves 31 for storing the pipes A dropped from the zones 23 are provided below the respective sorting zones 23.
A take-out mechanism 32 is provided to carry out the work.

The intermediate shelf 31 shows two different examples in the case of FIG. 5, and the intermediate shelf 31 on the right side of FIG. 5 is formed by bending the pipe rolling path in a zigzag manner, and on the left side of FIG. The intermediate shelf 31 is formed in a hopper shape in which the lower portion is squeezed, and the pipes dropped from the sorting zone are sequentially stored.

A pipe A is provided at the lower outlet of the intermediate shelf 31.
Mechanism is provided to control the discharge and stop of the pipe. By opening the lower end discharge port of the intermediate shelf 31 with the stopper mechanism 33, the pipe A can be filled in the carriage 32a of the take-out mechanism 32 which stands by immediately below. .

As described above, when the intermediate shelves 31 are installed at the lower part of each sorting zone 23,
Sorting zone 2 when the pipe is full and discharged at a
The pipe falling from 3 can be temporarily stored and there is no need to stop the operation of the sorting device.

FIGS. 11 to 14 show specific structures of the intermediate shelf 31 and the take-out mechanism 32. FIG.

In FIG. 11, an intermediate shelf 31 on the left side of FIG. 11 is for a short pipe, and a zigzag-shaped pipe rolling path 31a reduces the zigzag width between the both folded portions and makes each folded portion square. Forming and rolling path 31a
By giving a little resistance to the movement of the short pipe A which rolls, the short pipe with good rolling properties is not inclined in the rolling direction, and the short pipes can be reliably stocked in a parallel state. I have.

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 increased, and the folded portion is formed in an arc shape, so that the rolling property is poor. The long pipe can be rolled smoothly.

Next, the truck 3 constituting the take-out mechanism 32
Reference numeral 2a denotes 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 which are also upwardly U-shaped and are detachably mounted in the inclined state. When the carts 32a are placed individually and the cart 32a is located immediately below the intermediate shelf 31, the pipe A discharged from the intermediate shelf 31 is stored in the two holding frames 61 and 62.

As shown in FIG. 15, the movable pipe holding frame 62 serves as a shape holding frame when the pipe A on the carriage 32a is bound and taken out with the wire 63, and the upper opening of the holding frame 62 is detachable. Can be closed by a lid 64, and the group of pipes A to be lifted and conveyed by the wire 63 is held in a square shape.

As shown in FIG. 13, the fixed pipe holding frame 61 is provided with an alignment plate 65 for stacking pipes on the side wall on the inclined downward side.

The alignment plate 65 is provided with a plurality of arc-shaped concave portions 66 on the side edges protruding inward of the holding frame 61 so as to fit a part of the pipe A 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. 13, the alignment plate 65 is movable obliquely upward and outward along the oblong elongated hole 67, and when the pipe A is taken out from the holding frame 61, the alignment plate 65 is in the same position. The recess 66 escapes upward as shown by the dashed line in the drawing, so that the recess 66 does not hinder the removal of the pipe A.

11 and 14, a 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 into the holding frames 61 and 62 from the lower end of the pipe rolling path 31a is held by the holding frames 61 and 6.
The pipe A is guided toward the descending side of No. 2 so that the pipes A can be stacked smoothly.

The pipe guide arm 68 is mounted on the carriage 32
At the time of the movement of “a”, the holding frames 61 and 62 may be moved outward from the movement range as shown in FIG.

In the first embodiment of the present invention, the pipe A put into the receiving bucket 2 is rolled out from the receiving bucket 2 onto the guiding path 3 and the pipe A of the guiding path 3 is connected endlessly. The pipes A which are lifted one by one by the nails of the chain carrier 43 and supplied onto the group of screw shafts 42, and the pipes A whose ends are aligned and arranged side by side with the group of screw shafts 42 are visually selected, and the pipes A sent forward are good products. The pipe A is distributed to a corresponding part of the non-defective product transport line X, the non-defective product line Y, or the defective product storage portion Z while checking whether the product is a corrected product or a defective product.

Good product transfer line X or Keren straightening line Y
Is supplied to the output single-side picking device 13 by the roller conveyor 9, and the pipe A is supplied to the sorting mechanism 21 one by one by the single-line picking device 13, and is sent forward by the screw shaft 24. When the pipe A reaches the sorting zone 23 of the corresponding length, the support is released and falls, and the intermediate shelf 31 is dropped.
Stocked in.

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 conveyed to a desired place by the movement of the carriage 32a.

As described above, in the first embodiment,
The workability can be improved by automating the feeding of the pipe.

Next, a second embodiment shown in FIGS. 6 and 7 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 denoted by the same reference numerals, and only different parts will be described in detail. .

The second embodiment shown in FIG. 6 and FIG.
Using the pipe supply mechanism 1 of the embodiment,
The length of one type of pipe can be separately selected. A number of horizontal rails 22 are arranged in parallel, and each horizontal rail 2
A large number of screw shafts 24 are arranged on the sorting zone 23 where the pipe A falls between the two so as to feed the pipe A in a direction parallel to the sorting zone 23, and at one end side of the sorting zone 23 group, A positioning guide 25 for pressing one end of the pipe A is provided. The pipe sent forward by the screw shaft 24 moves while one end thereof slides on the positioning guide 25, and serves as a reference for length selection.

The screw shaft 24 is provided with a reference screw shaft 24a arranged in parallel with the position near the positioning guide 25.
And the inclined screw shaft 2 obliquely crossing 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. The longer the sorting zone 23 between the reference screw shaft 24a and the inclined screw shaft 24b is located, the longer it is. I have.

Therefore, when the pipe A whose one end is fed to the positioning guide 25 by the contact screw shaft 24 reaches the sorting zone of the corresponding length, the support by the inclined screw shaft 24b is released, so that the sorting is performed. It will fall into the zone, and the length can be automatically sorted just by transferring each pipe.

The third embodiment shown in FIGS.
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 shafts in the sorting mechanism 21 are arranged in upper and lower two stages. For example, the lower reference screw shaft 24 a is used for a scaffold pipe, Of the reference screw shaft 24a for the thick pipe, and one sorting mechanism 21
To sort the length of the two types of pipes, and to distribute the pipe A between the output single-side picking device 13 and the sorting mechanism 21 to any of the upper and lower reference screw shafts 24a, 24a. A mechanism 51 is provided.

[0049]

As described above, according to the present invention, on the entry side of the transport line for feeding long objects in the longitudinal direction, an entry table for supplying long objects to this line is provided, and A long object work machine is disposed, and a long object length sorting device provided with a long object length sorting mechanism at a position forward of the long object moving direction with respect to the work machine. In the foreground, the movable guiding piece is activated by a sensor that detects the type of long object,
A sorting mechanism is provided to guide the long object to the open side of the movable guide piece, thereby distributing the long object to the long object storage frame. Can,
The flexibility of arrangement of the long object storage frame and space saving can be achieved.

In addition, a width shifting mechanism for supporting and transporting the long object is provided in front of the long object storage frame, and the width shifting mechanism is provided to support the long object and to move the long object in the radial direction. Since it is formed by a transport body that feeds in the length direction while being transported to and a stopper that is arranged at the end of the transport body and the end of the long object fed in the length direction abuts, In front of the long object storage frame, the position of the end of the long object can be fixedly positioned with a stopper, and the long object can be supplied to the storage frame,
The long objects supplied to the storage frame are aligned at the ends, and when the long objects are stored in the storage frame, there is no displacement in the length direction of the long objects, and the long objects are stored based on the aligned ends. By doing so, it is not necessary to make the storage frame longer than necessary, and the storage frame can be made shorter to save space for storing long objects.

[Brief description of the 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 a pipe supply mechanism portion of the same.

FIG. 3 is an enlarged plan view showing a main part of a sorting mechanism.

FIG. 4 is a side view of the delivery side single-piece picking device in the above.

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 sorting mechanism in the above.

FIG. 8 is a plan view showing a third embodiment.

FIG. 9 is a side view of the sorting mechanism of the above.

FIG. 10 is a front view of a sorting mechanism of the above.

FIG. 11 is a front view showing a specific structure of an intermediate shelf and a take-out mechanism;

FIG. 12 is a side view of the above.

FIG. 13 is an enlarged front view of a main part of the pipe holding frame.

FIG. 14 is a front view of the take-out mechanism when the pipe is taken out.

FIG. 15 is a perspective view showing a binding state of pipes.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe supply mechanism 2 Receiving bucket 3 Guideway 6 Edge alignment roller conveyor 13 Single exit side picking device 14 Keren straightening machine 21 Sorting mechanism 23 Sorting zone 24 Screw shaft 25 Positioning guide

Claims (1)

(57) [Claims] 1. An input side table for supplying a long object to a transfer line for feeding a long object in the length direction is provided on an input side of the transfer line, and a work machine for the long object is arranged on the transfer line. In a long object length sorting device provided with a long object length sorting mechanism at a position forward of the long object moving direction with respect to the work machine, before the long object storage frame, the type of the long object is set. The movable guiding piece is actuated by the detecting sensor, and the long object is guided to the open side of the movable guiding piece, thereby distributing the long object to the long object storage frame, and supporting the long object. A conveying mechanism for supporting the long object and feeding the long object in the length direction while transferring the long object in the radial direction; and an end of the conveying body. And a stopper that abuts the end of a long object fed in the length direction. Length sorting device.