JPH0252080A - Apparatus for sorting length of long article - Google Patents

Abstract

PURPOSE:To perform automatic classification by providing a long article storage intermediate tank under each sorting zone and arranging a long article take-out mechanism to the lower part of each intermediate shelf. CONSTITUTION:The pipes A thrown in a receiving bucket 2 are transferred to a guide passage 3 by the rising of the receiving bucket 2 and a definite number of the pipes A are discharged to a front end arranging roller conveyor 6 by a quantitative delivery kicker 5. The pipes A parallelly arranged at this position, in such a state that the end parts thereof are aligned, are visually sorted and distributed to either one of the parts corresponding to a good product feed line X, a derusting correction line Y and an inferior product receiving part Z while it is observed that each of the pipes A sent out forwardly by an one-pipe taking kicker 8 is a good product, a derusting correction product or an inferior product. Then, the pipes A are supplied to a sorting mechanism 21 to be stored in an intermediate shelf 31. By this method, the efficiency of sorting work is enhanced.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is a method for automatically dividing long objects such as pipes and shafts of different lengths into groups of the same length. It is related to the device.

[Conventional technology]

For example, steel pipes of various lengths are used in construction work to assemble scaffolding and formwork, but when the pipes are collected after construction is completed, each pipe is in a mixed state. When reusing them, they must be sorted by length.

By the way, if the pipes of each hole size were to be sorted manually, it would require a lot of labor and time, so the sorting was done.

The above-mentioned sorting device supports the pipes with multiple screw shafts, and as the screw shafts rotate, the pipes are moved perpendicularly to the longitudinal direction while one end surface is in contact with a positioning guide arranged in the axial direction of the screw shafts. The screw shaft was arranged so that the support and release position of the pipe by the screw shaft was displaced according to the length of the pipe, and a pipe extraction mechanism was provided directly below the sorting zone formed at the support and release position. It has a structure.

To select the length of a pipe, the pipe supported by a screw shaft is rotated to determine the position of the -many-end surface.
Transfer it in a direction perpendicular to the longitudinal direction while contacting the guide,
When the pipe reaches the sorting zone of the corresponding length, the pipe is released from its support by the screw shaft, and the pipe that has fallen into the sorting zone is received by a take-out mechanism waiting directly below and transported to the desired position. .

(Problem to be Solved by the Invention) The sorting device described above sequentially sorts pipes, so when a full take-out mechanism is moved in each zone, pipes fall into the zone. There is no longer anything to receive the pipes, and therefore the sorting device must be temporarily stopped when the take-out mechanism is moved, causing a reduction in work efficiency.

This invention! ! l! This problem was developed in order to solve the above-mentioned problems, and the long objects that fall from the sorting zone to the take-out mechanism are stocked on an intermediate shelf, and when the take-out mechanism is moved, the sorting work (which solves the problem) is done. Means for Solving) In order to solve the above-mentioned problems, the present invention provides intermediate shelves for storing long objects below each sorting zone, and provides a mechanism for taking out long objects at the bottom of each intermediate shelf. The structure is arranged in such a way that

[Function] When a long object is supported by a screw and fed in a direction perpendicular to the longitudinal direction, one end surface is pressed against the positioning guide and serves as a reference for length sorting, and a sorting zone of the corresponding length is created. When facing the top, the long objects are no longer supported by the screw shaft, so they fall into this sorting zone, are stocked on an intermediate shelf provided below this zone, and are then discharged to the take-out mechanism at the bottom.

Since the long objects are stored one after another in the intermediate shelf, there is no need to stop the sorting device even when the take-out mechanism becomes full and the object is moved, and the sorting work can be carried out continuously.

〔Example〕

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

First, the pipes for construction work that are subject to sorting can be roughly divided into pipes for scaffolding and pipes for thick timber.Scaffolding pipes are available with pins and without pins, and these also have regulations. There are standard size pipes, pipes that require straightening or cleaning, non-standard length pipes, defective pipes that cannot be reused, etc. The sorting device separates the various types of pipes that are mixed together and separates them into standard size pipes. It is now possible to sort by length.

The drawings show several different examples of the sorting device, and will first be explained based on the first example shown in FIGS. 1 to 5.

FIG. 1 is an overall plan view, and FIG. 2 is a cross-sectional view of the same pipe supply mechanism.

In the figure, the pipe supply mechanism 1 is provided with a forward downward guideway 3 for transferring the pipe A in front of a receiving bucket 2 into which the pipe A is randomly input, and the receiving bucket 2 is lifted by a chieno block 4 or the like. This makes it possible to freely swing up and down, so that the pipe A can be rolled out onto the guideway 3 during lifting.

A fixed amount cutter 5 that swings with a cylinder is provided in the middle of the taxiway 3, and the pipes A on the taxiway 3 are arranged in a plane.
A fixed number of pipes are discharged forward by manual operation, and an alignment roller conveyor 6 is disposed in front of the guideway 3 in a forward downward slope. By bringing it into contact with the provided stone bar 7, the length direction is aligned with one end as a reference,
To facilitate the visual inspection of end length pipes, non-defective pipes, pipes requiring cleaning, etc.

At the tip of the end of the end alignment roller conveyor 6 on the downward slope side, there is provided a single picker 8 that lifts the frontmost pipe on the conveyor 6, and in front of this picker 8 there are a good product conveyance line X, a scraping correction line Y, and a defective product conveyance line A storage section Z is set up, and both lines X and Y are formed by a roller conveyor 9 that conveys the pipe A in the axial direction, and a cart 10 for storing the pipe is arranged in the defective product storage section Z.

On the roller conveyor 9, there is provided a first movable guiding piece 11 for transferring the pipe discharged from the wood removing cutter 8 to the non-defective product conveying line X, and also a cleaning straightening line Y.
Alternatively, a second movable guide piece 12 is arranged to transfer the pipes to the defective product storage section Z, and by operating these guide pieces 11 and 12, each pipe is sorted into a non-defective vibe, a clean correction vibe, and a defective pipe. It is now possible to do so.

At a position in front of the roller conveyor 9 on the non-defective product line A correction buttock 14 is provided in the middle of the correction line Y.

As shown in FIG. 3, the exit-side book removal device 13 has vibrator guide troughs 15 and 16 with open lower front surfaces arranged along the non-defective product line X and the clean correction line Y, and both guide troughs 15.16.
A tilting table 17 with a downward tip is provided below the ramp 16, and at the tip of this ramp 17 there is a take-out machine that intermittently lifts up the pipes rolling on the ramp 17 one by one and sends them out to the sorting mechanism 21 in front. It is configured by arranging 18.

The above-mentioned take-out machine 18 is formed by arranging a large number of endless chains 19 side by side, and protruding claws 20 from each chain 719 for lifting the pipes A at regular intervals. It is designed to be lifted up.

The sorting mechanism 21 has a sorting zone 23 in which a large number of horizontal bars 22 are arranged in parallel, and the pipe A falls between each horizontal bar 22.
A plurality of screw shafts 24 are arranged above so as to send the pipes A in the parallel direction of the sorting zones 23, and a positioning guide that presses one end of the pipe against one end side of the group of sorting zones 23. 25 is provided, and one end of the pipe sent forward by the screw shaft 24 moves while sliding on this positioning guide 25, and serves as a reference when selecting the length.

The screw shaft 24 includes a reference screw shaft 24a arranged in parallel to a position close to the positioning guide 25, an inclined screw shaft 24b diagonally crossing the top of the sorting zone 23, and a plurality of screw shafts arranged at a rear position of the inclined screw shaft 24b. A sorting zone 23 consisting of a short screw shaft 24c and between the reference screw shaft 24a and the inclined screw shaft 24b.
The further forward the line is located, the longer it becomes.

Therefore, one end of the screw shaft 2 is in contact with the positioning guide 25.
When the pipe A sent in step 4 reaches the sorting zone of the corresponding length, it is no longer supported by the inclined screw shaft 24b and falls into the sorting zone. You can select the length according to your needs.

Below each sorting zone 23, as shown in FIG.
1 is provided, and an hVi structure 32 from which one pipe A comes out is provided below each intermediate 8I31.

In the case of FIG. 5, the intermediate shelf 31 shown in FIG. 5 shows two different examples. 31 is formed into a hopper shape with a constricted bottom, and is designed to sequentially stock pipes that have fallen from the sorting zone.

A stopper mechanism 33 for controlling the discharge and stop of the pipe A is provided at the lower end outlet of the intermediate shelf 31, and by opening the lower end outlet of the intermediate shelf 31 with this stopper mechanism 33, the take-out structure A waiting directly below the stopper mechanism 33 is provided. 32 carts 32a can be filled with pipe A.

As mentioned above, there is an intermediate shelf 31 at the bottom of each sorting zone 23.
By installing this, pipes falling from the sorting zone 23 can be temporarily stored when the cart 32a of the take-out mechanism 32 is full and the pipes are to be carried out, and there is no need to stop the operation of the sorting device.

19 to 22 show the intermediate shelf 31 and the take-out mechanism 3.
The concrete structure of 2 is shown.

In FIG. 19, the intermediate shelf 31 on the left side of the figure is for short pipes, and the zigzag 11 between the folded portions on both sides is shortened in the pipe transfer path 31a formed in a zigzag shape.
By forming each folded part into a rectangular shape and providing a little resistance to the movement of the short pipe rolling on the transfer path 31a,
To prevent short pipes with good transferability from tilting in the transfer direction, and to ensure that short pipes can be stocked in parallel.

In addition, the intermediate shelf 31 on the G side in the figure is for long pipes,
The width between the folded portions on both sides of the pie-heave rolling 831a is made longer, and the folded portions are made into an arc shape so that long pipes with poor rolling properties can be transferred smoothly.

Next, the cart 32a that constitutes the take-out mechanism 32: The pipe holding frame 61, which is in the shape of an upward U-shape and is fixed on the cart 32a in an inclined state, and When a plurality of attached movable pipe holding frames 62 are placed a and the trolley 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 and 62. will be done.

As shown in FIG. 23, the movable pipe holding frame 62 serves as a shape-retaining frame when the pipes A on the cart 32a are tied together with wires 63 and taken out, and the upper opening of this holding frame 62 has a removable lid. 64 provides a closing space, and the group A of pipes, which are lifted and transported by wire 63, is held in a rectangular shape.

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

This alignment plate 65 has a plurality of arcuate recesses 66, into which portions to the pipes are fitted, arranged vertically in multiple stages on the side edges protruding inside the holding frame 61, in accordance with the stacking pattern of the pipes. .62 Pipes A are stored and piled up
The end shapes of the pipes are aligned to allow for smooth stacking of stored pipes.

As shown in FIG. 21, the alignment plate 65 becomes freely movable outward and diagonally upward along the oblique elongated hole 67 around 1, so that when the pipe A is taken out from within the holding frame 61, the alignment plate 65 is moved along the oblique long hole 67. Figure - escape upward as shown by the dotted chain line, recess 66
is designed so that it does not interfere with the removal of pipe A.

In the case of FIGS. 19 and 22, the pipe guide arm 68 is swingably suspended below the pipe transfer path 31a on the intermediate shelf 31, and the holding frame 6 is suspended from the lower end of the pipe transfer path 31a.
The pipe A falling into the holding frame 61.62 is guided toward the downward side of the holding frame 61.62 so that stacking on the pipe can be performed smoothly.

This pipe guide arm 68 is used when the trolley 32a is moved.
As shown in FIG. 22, the holding frames 61 and 62 may be moved outwardly from the moving range.

The first example of this invention has the above-mentioned configuration, and has a receiving unit.
<The pipe A fed into the Kent 2 is transferred onto the guideway 3 by the rising of the Ukekenhamakenoto 2, and a fixed number of pipes are discharged onto the edge-aligning roller conveyor 6 in front by the quantitative cutting cutter 5. Visually sort the pipes A that are aligned and lined up in parallel, and check whether the pipes A sent forward by the pick-up cutter 8 are good products, clean-corrected products, or defective products. Pipe A is distributed to the corresponding part of either Y or defective product storage part Z.

The pipe A supplied to the non-defective product conveyance line In the J system 13, the pipes A are fed one by one to the sorting mechanism 21, and are fed forward by the screw shaft 24 into the sorting zone 2 of the corresponding length.
3, the support is released and it falls, and is stocked in the intermediate shelf 31.

When the stopper mechanism 33 is opened, the pipe 1 in the intermediate pipe 31 is stored in the stand ff132a of the crystal structure 32 waiting directly below, and is transported to a desired location by the movement of the cart 32a.

Next, a second example shown in FIGS. 6 to 8 will be explained. In the second example of the present invention and each subsequent side, the same parts as in the first example shown in FIGS. 1 to 5 are given the same reference numerals, and only the different parts will be described in detail.

In this second example, the pipe feeding is automated to improve work efficiency. In addition to making it possible to visually inspect pipe 8, screw shaft 4 parallel to the end alignment of pipe A
2 is used to lift the pipes A of the guide path 3 one by one using the claws of the endless chain carrier 43 and feed them onto the screw shafts 42 group (1).

At the top of the end alignment screw shaft 42 marked F, there is a
A sensor 44 is arranged to detect the number of passing pipes A for each length, so that the number of pipes can be managed.

When detecting the number of pipes A by length, sensors 44 corresponding to the pipe length type iQ are arranged based on the end alignment strike and bar, and the sensors 44 are arranged according to the length of each pipe. Detect the number of pipes and their length.

In addition, when detecting the end length pipe outside base 4 at the same time,
Two sensors are used to detect the length of each pipe, and the two sensors are placed at a predetermined distance apart on both sides of the end of the standard length pipe. If only one sensor detects the pipe, it is determined to be the standard length, and if the sensor does not detect the pipe or both sensors detect the pipe, it is determined to be an end length pipe, and the number of passing pipes is determined as close to the end alignment stopper. The number of end length pipes is detected by the zero output sensor placed at the end.

When the end length pipe is detected, the front gate 45 is opened in conjunction with this, and the end length pipe is automatically stored in the trolley 10 of the defective product storage section Z.

In addition, the sorting mechanism 21 separates two types of pipes, for example, scaffolding pipes without and with bottles, or scaffolding pipes and end pipes, and separates the lengths of the two types of pipes. The extractor 81B is extended to four points in the center of the upper surface of the sorting mechanism 21, and the sorting mechanism 21
Two units are arranged on both sides from the center so that the pipe feeding direction is reversed, and a mechanism 51 is provided directly above between the re-sorting mechanisms 21 and 21 for distributing the pipes to the tip of the take-out machine 18, and the sorting mechanism 2L 2+ We are trying to supply the corresponding pipe. Note that a sensor 46 may be disposed at the tip of the extractor 18 to detect the type of pipe based on its external shape or the presence or absence of a bottle, and to operate a mechanism 51 for sorting.

The third example shown in FIG. 9 and FIG. 1O 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 will be replaced by assigning the same reference numerals to the parts.

The fourth example shown in FIGS. 11 to 13 is a sorting seed structure 21.
The reference screw shafts 24a are arranged in upper and lower stages, for example, the lower reference screw shaft 24a is used for scaffolding pipes, the upper reference screw shaft 24a is used for thick pipes, and -
A sorting mechanism 21 on the stand is capable of sorting two types of pipe lengths, and on the exit side - a book-picking device 13 and a sorting mechanism 2.
1 between the pipe 8 and the upper and lower reference screw shafts 24a, 24
A mechanism 51 is provided for distributing the water to either a.

In the fifth example shown in FIGS. 14 and 15, the pipe supply mechanism 1 and the sorting mechanism 21 are vertically bent to reduce the installation space. At one end of the pipe 6, a conveyor 52 for taking out end measures and defective pipes, and a sharpening 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 a fixed type that slopes forward and downward, and the receiving bucket 2 is a fixed type that slopes forward and downward. The pipes are pushed up and fed onto the keren straightening line Y one by one by a pusher 53.

〔effect〕

As described above, according to the present invention, since the intermediate shelf for storing long objects is provided at the bottom of the selection zone, when the take-out mechanism located at the bottom of the intermediate shelf becomes full and the long objects are transferred,
Long objects falling from the sorting zone can be stocked, and therefore there is no need to stop the sorting work even when the take-out mechanism is moved, and the efficiency of the sorting work can be improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a first example of the sorting device according to the present invention, FIG. 2 is a side view of the pipe supply mechanism portion in the same, and FIG. 3 is a side view of the outlet-book picking device in the same. Fig. 4 is an enlarged plan view showing the main parts of the sorting mechanism, Fig. 5 is an enlarged sectional view of the intermediate shelf part in the same as above, Fig. 6 is a plan view showing the second example, and Fig. 7 is a pipe supply in the same as above. Figure 8 is a side view of the mechanism, and Figure 9 is a side view of the sorting mechanism.
10 is a side view of the sorting mechanism in the same as above, FIG. 11 is a plan view showing the fourth example, FIG. 12 is a side view of the sorting mechanism in the same as above, and FIG. 13 is a side view of the sorting mechanism in the same as above. 14 is a plan view showing the fifth example, FIG. 15 is a front view of the same, FIG. 16 is a plan view showing the sixth example, and FIG. 17 is a plan view of the pipe supply mechanism in the same. Side view, No. 18
The figure is a side view of the sorting mechanism in the same as above, Figure 19 is a front view showing the specific structure of the intermediate shelf and take-out mechanism, Figure 20 is a side view in the same as above, and Figure 21 is an enlarged view of the main part of the pipe holding frame. FIG. 22 is a front view when the pipe is taken out in the take-out mechanism, and FIG. 23 is a perspective view showing the state in which the pipes are bundled. 1... Pipe supply mechanism, 2... Receiving bucket, 3... 4 products, 6... Edge alignment roller conveyor, 13...
・Output side - book picking device, 14... Keren straightening machine, 21... sorting mechanism, 23... sorting zone, 24...
- Screw shaft, 25...Positioning guide, 31...Intermediate shelf, 32...Takeout mechanism.

Claims (1)

[Claims] (1) A long object is supported by multiple screw shafts, and by rotation of the screw shafts, the long object is held perpendicular to the longitudinal direction while one end surface is in contact with a positioning guide arranged in the axial direction of the screw shafts. The screw shaft is arranged so that the position at which the long object is released from support by the screw shaft changes depending on the length of the long object, and the long object falls after the support is released. In a length sorting device for long objects in which the zones are set so that they become longer as they move forward in the transport direction of long objects, an intermediate shelf for storing long objects is provided below each sorting zone, and each A length sorting device for long objects, characterized in that a long object removal mechanism is arranged at the bottom of an intermediate shelf.