JP2816685B2 - Length sorting device for long objects - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to length sorting for automatically dividing long objects such as pipes and shafts having different lengths into groups of the same length. It concerns the device.

[Conventional technology]

For example, in construction work, to assemble scaffolds and formwork,
Steel pipes of various lengths are used, but when the pipes are collected after the completion of the construction, the pipes are in a mixed state, so when pipes are reused, they must be sorted by length.

By the way, the manual sorting of pipes of various lengths requires a great deal of labor and time, and the sorting cost is high. A sorting device was proposed.

The sorting device described above supports the pipe with a plurality of screw shafts, and rotates the screw shaft so that the pipe abuts one end surface on a positioning guide arranged in the axial direction of the screw shaft. The screw shaft was arranged so that the pipe support release position by the screw shaft was displaced according to the length of the pipe, and a pipe take-out mechanism was provided directly below the sorting zone formed at the support release position. It has a structure.

In order to select the length of the pipe, the pipe supported by the screw shaft is transferred by rotating the screw shaft in the direction perpendicular to the longitudinal direction while the one end face is in contact with the positioning guide, and the pipe has the corresponding length. When the user faces the sorting zone, the support of the pipe by the screw shaft is released, the pipe that has fallen into the sorting zone is received by a take-out mechanism that stands by immediately below, and is transferred to a desired position.

[Problems to be solved by the invention]

By the way, in the conventional sorting apparatus as described above, the input side table for supplying pipes to the Keren working machine, which is a pre-process of length sorting, is tall, and it is difficult to perform the work of feeding long objects, Since the storage of the long objects after sorting is performed without positioning, there is a problem that the storage of the long objects in the storage unit is not uniform.

Therefore, an object of the present invention is to efficiently carry out keren treatment and subsequent length selection and storage, and to reduce the height of the input side table, thereby making it possible to easily supply long objects. It is to provide a device.

[Means for solving the problem]

In order to solve the above-described problems, the present invention provides an inlet table that supplies a long object to this line on an upstream side (hereinafter referred to as an inlet side) of a transport line that sends a long object in the length direction, A long-length work machine is disposed on the transport line, and a long-size sorting mechanism is selected at a position downstream of the long-machine transfer direction (hereinafter referred to as an “outside”) with respect to the work machine. And a screw-type long object end aligning mechanism for moving the end of the long object while sliding the end of the long object in contact with the positioning guide on the exit side of the conveyance line and in front of the storage section. This configuration employs a configuration in which a lifting mechanism for a long object is provided on at least one of the entrance side and the exit side of the line.

[Action]

The long object supplied from the entry side table and sent along the transport line is passed through the inside of the working machine, subjected to a treatment such as keeling, and then the length is sorted by the sorting mechanism.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, pipes for construction work, which are the objects of sorting,
There are two types of pipes: scaffold pipes and end pipes, and scaffold pipes are available with or without pins. There are outer end pipes, non-reusable defective pipes, and the like, and the sorting apparatus is capable of sorting fixed-length pipes by length while separating the mixed pipes.

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

FIG. 1 is a plan view of the whole, and FIG. 2 shows a cross-sectional structure of the same pipe supply mechanism.

In FIG. 1, a pipe supply mechanism 1 is provided with a forward descending guideway 3 for rolling a pipe A in front of a receiving bucket 2 into which a pipe A is randomly inputted. The receiving bucket 2 is connected to a chain block 4 or the like. The lifting allows the pipe A to swing up and down, and at the time of lifting, the pipe A moves out onto the guideway 3.

A fixed amount cutout kicker 5 that swings with a cylinder is provided in the middle of the guideway 3, and a predetermined number of pipes A on the guideway 3 arranged in a plane are discharged forward by a manual operation by a predetermined number, and the pipes A are provided in front of the guideway 3. An end aligning roller conveyor 6 is disposed in a downwardly inclined shape, and the pipe A transferred onto the conveyor 6 is brought into contact with a stopper 7 provided at an end of the conveyor 6 so that the length of the pipe A is determined with reference to one end. In order to make it easy to visually sort the end pipes, non-defective pipes, pipes that require keren, etc.

A single kicker 8 that lifts the foremost pipe on the conveyor 6 at the end of the end alignment roller conveyor 6 on the inclined downward side.
A non-defective product transfer line X is provided in front of the kicker 8.
And the Keren straightening line Y and the defective product storage section Z are set,
Both lines X and Y are formed by a roller conveyor 9 for feeding the pipe A in the axial direction, and a carriage 10 for storing the pipe is disposed in the defective product storage section Z.

On the roller conveyor 9, a first movable guiding piece 11 for transferring the pipe discharged from the single picker 8 to the non-defective product transfer line X, and a Keren straightening line Y
Or a second movable guide piece for transferring out to the defective product storage part Z
12 are arranged, and by operating these guiding pieces 11 and 12, each pipe can be sorted into a non-defective pipe, a Keren straightening pipe and a defective pipe.

At the position in front of the roller conveyor 9 in the non-defective line X and the Keren straightening line Y, an output single-side picking device 13 which receives pipes sent along both lines X and Y and supplies the pipes one by one to a sorting mechanism 21. Are arranged, and a kelen straightening machine 14 is provided in the middle of the keren straightening line Y.

As shown in FIG. 3, the outlet side single picking device 13 includes pipe guiding gutters 15 and 16 whose lower front surfaces are open along the non-defective line X and the Keren straightening line Y. A take-off machine 18 is provided at the tip of the slope 17 at the tip of the slope 17 at which the pipes rolling on the slope 17 are intermittently lifted one by one and sent out to the front sorting mechanism 21. Are arranged.

The unloader 18 is formed by arranging a large number of endless chains 19 side by side, protruding claws 20 for lifting the pipes A at regular intervals on each chain 19, and sequentially forming the pipes A parallel to each other on the inclined table 17. It is designed to be lifted.

The sorting mechanism 21 arranges a number of horizontal rails 22 in parallel, and a pipe A falls between the respective horizontal rails 22. On the sorting zone 23, a number of screw shafts 24 separate the pipe A from the sorting zone 23. 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 sent forward by the screw shaft 24 has one end. It moves while sliding on the positioning guide 25, and serves as a reference for length selection.

The screw shaft 24 has a reference screw shaft 24a arranged in parallel with the position adjacent to the positioning guide 25, an inclined screw shaft 24b obliquely crossing over the sorting zone 23, and a plurality of arranged at a position behind the inclined screw shaft 24b. Short screw shaft 24c
The reference screw shaft 24a and the inclined screw shaft 2
As the sorting zone 23 located between the sorting zone 23 and 4b is located at the front, the sorting zone 23 is sequentially longer.

Therefore, one end of the positioning guide 25 is in contact with the screw shaft 24.
When the pipe A is sent to the sorting zone of the corresponding length, the support by the inclined screw shaft 24b is released, and the pipe A falls into the sorting zone. The length can be sorted.

As shown in FIG. 5, below each of the sorting zones 23, there are provided intermediate shelves 31 for stocking the pipes A dropped from the zones 23, and a take-out mechanism 32 for exposing the pipes A under each of the intermediate shelves 31 is provided. Is provided.

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

A stopper mechanism 33 for controlling the discharge and stop of the pipe A is provided at the lower end discharge port of the intermediate shelf 31. The stopper mechanism 33 opens the lower discharge port of the intermediate shelf 31 so that the take-out mechanism 32 that stands by immediately below is provided. Can be filled with the pipe A.

As described above, when the intermediate shelves 31 are installed at the lower part of each sorting zone 23, when the pipes become full on the carriage 32a of the unloading mechanism 32 and are carried out, the pipes falling from the sorting zone 23 are temporarily stored. Yes, there is no need to stop the operation of the sorting device.

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

In FIG. 19, the middle shelf 31 on the left side of the figure is for a short pipe, and the zigzag width between both folded portions is shortened in the pipe rolling path 31a formed in a zigzag shape, and each folded portion is formed in a square shape. By giving a little resistance to the movement of the short pipe A rolling on the rolling path 31a, the short pipe with good rolling properties is prevented from being inclined in the rolling direction, and the short pipes are surely arranged in parallel. I can stock it.

The middle shelf 31 on the right side of the figure is for a long pipe,
The width between the folded portions on both sides of the pipe rolling path 31a is increased, and the folded portions are formed in an arc shape so that a long pipe having poor rolling properties can be smoothly rolled.

Next, the carriage 32a that constitutes the take-out mechanism 32 has an upward U-shaped pipe holding frame 61 fixed in an inclined state on the carriage 32a, and also has an upward U-shaped, and is detachably mounted in the inclined state. When a plurality of movable pipe holding frames 62 are respectively placed and the cart 32a is located directly below the intermediate shelf 31,
The pipe A discharged from the intermediate shelf 31 is stored in both holding frames 61,61.

The movable pipe holding frame 62 is, as shown in FIG.
When the pipe A on 32a is bound by a wire 63 and taken out, it becomes a shape retaining frame. The upper opening of the retaining frame 62 has a detachable lid 64.
The pipes A that are lifted and conveyed by the wire 63 are held in a square shape.

As shown in FIG. 21, an alignment plate 65 for stacking pipes is attached to the fixed pipe holding frame 61 on the side wall on the inclined downward side.

This alignment plate 65 is provided with a plurality of arc-shaped concave portions 66 on the side edges projecting inward of the holding frame 61, in which a part of the pipe A fits, in accordance with the stacking pattern of the pipes.
The end shapes of the pipes A that are stored and stacked in the pipes 61 and 62 are aligned so that the stored pipes can be stacked smoothly.

As shown in FIG. 21, the alignment plate 65 is movable outward and obliquely upward along the oblong elongated hole 67, and when the pipe A is taken out from the holding frame 61, the alignment plate 65
Escapes upward as indicated by the dashed line in FIG.

In the case of FIGS. 19 and 22, the pipe guide arm 68 is swingably suspended at the lower end of the pipe rolling path 31a on the intermediate shelf 31, and falls into the holding frames 61 and 62 from the lower end of the pipe rolling path 31a. Pipe A is guided toward the downside of the holding frames 61 and 62,
The pipes A can be stacked smoothly.

When the carriage 32a moves, the pipe guide arm 68
As shown in FIG. 2, the holding frames 61 and 62 may be moved outward from the moving range.

The first example of the present invention is configured as described above, and the pipe A put into the receiving bucket 2 is
The pipe A is discharged onto the guide roller 3 and discharged by the fixed quantity cutout kicker 5 by the fixed quantity into the front end aligning roller conveyor 6, where the ends are aligned and parallel at this position.
Are visually inspected, and while checking whether the pipe A sent forward by the single picking kicker 8 is a non-defective product, a corrected product, or a defective product, the transfer line X of the non-defective product, the correction line Y of the defective product, and the storage unit Z of the defective product are checked. The pipe A is distributed to any corresponding part.

The pipes A supplied to the non-defective product transfer line X or the kelen straightening line Y are sent to the output single-side picking device 13 by the roller conveyor 9, and the pipes A are supplied to the sorting mechanism 21 one by one by the single-line picking device 13. When the pipe A sent forward by the screw shaft 24 reaches the sorting zone 23 having a corresponding length, the support is released and falls, and is stored in the intermediate shelf 31.

The pipe in the intermediate shelf 31 is stored in the carriage 32a of the take-out mechanism 32 which stands by immediately below by opening the stopper mechanism 33, and is carried out to a desired place by the movement of the carriage 32a.

Next, a second example shown in FIGS. 6 to 8 will be described.
In the second example of the present invention and each example thereafter, the first example
About the same part as the first example shown in FIGS.
The same reference numerals are given and only different portions will be described in detail.

In the second example, the feeding of pipes is automated to improve workability. The supply mechanism 1 of the example receives the two-stage stopper 41 at the tip of the receiving bucket 2, and The pipe A can be visually inspected and a screw shaft 42 arranged in parallel with the pipe A
, The pipe A of the guide path 3 is lifted one by one by the claw of the endless chain carrier 43 and supplied to the screw shaft 42 group.

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

When detecting the number of pipes A for each length, the number of sensors 44 corresponding to each pipe length is arranged corresponding to each pipe length based on the end alignment stopper, and the number of passing pipes is determined. Is detected for each length.

Also, when simultaneously detecting non-standard end pipes,
Two sensors are used for detecting the length of each pipe, and the two sensors are arranged at a predetermined distance at both sides of the end of the reference length pipe, and the pipes passing therethrough are separated. When only one sensor detects, it is judged to be the reference length, and when the sensor does not detect the pipe or when both sensors detect the pipe, it is judged to be the end pipe. The number of end pipes is detected by the number detection sensor arranged in the vertical direction.

When the end pipe is detected, the front gate 45 opens in conjunction with the detection, and the end pipe is automatically stored in the carriage 10 of the defective product storage section Z.

In addition, the sorting mechanism 21 separates each of the two types of pipes, for example, the scaffolding pipes with no pins and pins, or separates the scaffolding pipes and end pipes, and separates the lengths of the two types of pipes. And the unloader 18 is sorted by the sorting mechanism.
Extending to the center of the upper surface of 21, the sorting mechanism 21 arranges two units on both sides from the center so that the pipe feed direction is reversed,
A sorting mechanism 51 is provided just above the two sorting mechanisms 21 and 21 at the end of the unloader 18 so as to supply corresponding pipes to the sorting mechanisms 21 and 21. At the tip of the unloader 18,
A sensor 46 that detects the type of the pipe based on the outer shape or the presence or absence of the pin and activates the sorting mechanism 51 may be provided.

The third example shown in FIGS. 9 and 10 is a combination of the sorting mechanism 21 of the first example and the pipe supply mechanism 1 of the second example, and is the same as the first and second examples. The description is replaced by the same reference numerals given to the parts.

In the fourth example shown in FIGS. 11 to 13, the reference screw shafts in the sorting mechanism 21 are arranged in upper and lower stages, for example, the lower reference screw shaft 24a is used for a scaffold pipe, and the upper reference screw shaft 24a is For single-end pipes, two types of pipe lengths can be sorted by one sorting mechanism 21. A distributing mechanism 51 for supplying one of the shafts 24a, 24a is provided.

The fifth example shown in FIG. 14 and FIG.
And the sorting mechanism 21 are wrapped up and down to reduce the installation space, and a conveyor for taking out an end scale or a defective pipe is provided at one end of the end alignment roller conveyor 6.
52 and the Keren straightening machine 14 are arranged.

The sixth example shown in FIGS. 16 to 18 is a simplified version of the pipe supply mechanism in the first example, in which the receiving bucket 2 is of a fixed type inclined forward and downward, The pipes are supplied one by one onto the Keren straightening line Y by a push-up kicker 53.

〔effect〕

As described above, according to the present invention, since the working machine is arranged in the middle of the transport line for transferring the long object supplied from the entrance table toward the length sorting mechanism, the long object can be removed and the length can be reduced. Sorting and storage can be performed continuously, improving the efficiency of Keren treatment and length sorting, and aligning the ends of long objects by the end alignment mechanism at a fixed position, so that long objects supplied to the storage unit can be The tips will be aligned, and the installation of the lifting mechanism can provide a height difference between the transport line and the entrance table or the transport line and the length sorting mechanism, and the supply or removal of long objects will be low. The position is easier.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first example of a sorting device according to the present invention, FIG. 2 is a side view of a pipe supply mechanism part in the same, FIG.
FIG. 4 is an enlarged plan view showing a main part of the 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 example, and FIG. FIG. 8 is a side view of the sorting mechanism, FIG. 9 is a plan view showing a third example, FIG. 10 is a side view of the sorting mechanism in the above example, and FIG. 11 is a fourth example. FIG. 12 is a side view of the sorting mechanism in the above, FIG. 13 is a front view of the sorting mechanism, FIG. 14 is a plan view of the fifth example, FIG. FIG. 16 is a plan view showing the sixth example, FIG. 17 is a side view of the pipe feeding mechanism in the above, FIG. 18 is a side view of the sorting mechanism in the same, and FIG. FIG. 20 is a front view showing the structure, FIG.
FIG. 21 is an enlarged front view of a main part of the pipe holding frame, FIG. 22 is a front view at the time of taking out a pipe by a take-out mechanism, FIG.
The figure is a perspective view showing a binding state of pipes. DESCRIPTION OF SYMBOLS 1 ... Pipe supply mechanism, 2 ... Receiving bucket, 3 ... Guideway, 6 ... End aligning roller conveyor, 13 ... Outgoing single-side picking device, 14 ... Keren straightening machine, 21 ... Sorting mechanism 23 ... sorting zone, 24 ... screw shaft, 25 ... positioning guide, 31 ... intermediate shelf, 32 ... take-out mechanism.

Claims (1)

(57) [Claims] An input table for supplying a long object to this line is provided upstream of a conveying line for feeding the long object in the longitudinal direction, and a work machine for the long object is disposed on the conveying line. At the downstream position in the long object transfer direction with respect to the work machine, a long object length sorting mechanism and a storage section for the selected long objects are provided, and the storage section is provided downstream of the transport line and before the storage section. A screw-type long object end aligning mechanism that moves the end of the long object while sliding the end of the long object against the positioning guide is provided, and a lifting mechanism for the long object is provided on at least one of the upstream side and the downstream side of the transport line. The installed length sorting device.