JPH038465A - Continuous regeneration apparatus for parts of landslide protection wall - Google Patents

Abstract

PURPOSE:To reduce the man power for regeneration by providing a hanging station, a surface preparing station, and an air-blow station along the circulation orbit of hanger conveyor carrying out an endless circulating motion. CONSTITUTION:The parts 12 of landslide protection wall put on the movable receiving table 16 of a receiving station 9 are separated from hangers 2 by removing each hook member (c) of hanging gadget in a loose state from a bolt hole. The parts are pushed by hands on a slanting free roller conveyor 16a to be moved on a curved slat conveyor 16b, and then automatically conveyed to a taking-out side by a conveyor 16b and a straight line slat conveyor 16c. The passing of the parts 12 of landslide protection wall is confirmed in the vicinity of the terminal end of the conveyor 16b and at the front position of a common accumulating station 16 by a photoelectric tube 54. By this method, the cost of regeneration treatment is sharply reduced.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is an apparatus for recycling parts used in so-called mountain retaining construction, which prevents earth and sand from collapsing in underground construction, building foundation construction, river construction, bridge construction, etc. Regarding.

(Prior art and its problems) In general, in mountain retaining construction, the earth pressure exerted on the earth retaining wall made of steel sheet piles, continuous walls, etc. is supported by a supporting frame built inside, and the required space for civil engineering construction work is secured. The constructed supporting structure will be dismantled at the end of the civil engineering construction work, and the dismantled components will be repeatedly reused for new mountain retaining construction.

The structural members of this support frame include intermediate piles made of H-shaped steel, etc. that form the columns, beam materials such as backing, cut beams, and flint beams, and those used for connecting, reinforcing, and adjusting the length of each part of these beams. Various types of steel retaining parts, such as corner pieces (see Figure 7A), firework pieces (see Figure 7B), and adjustable firework pieces (
), auxiliary piece (see same), cover plate (see same), Kirin jack (see same), jack cover (see same), oil jack receiver piece (see same), intersection piece (see same), etc. There are different types of retaining parts (see I), and each type of retaining parts also has different dimensions and weights.

By the way, when the above-mentioned mountain retaining parts are used for mountain retaining construction, the rust preventive coating may age, be damaged, or peel off, causing rust to occur in some areas, or dirt, mortar, etc. may adhere to them. Since it becomes difficult to use, it is necessary to regenerate it.

However, in conventional recycling, it is difficult to automatically recycle a variety of retaining parts with different shapes, dimensions, weights, etc. at the same time. After removing and smoothing the surface, anti-rust coating is applied manually using a brush, etc., which has the problem of requiring a great deal of labor and time to regenerate, and the cost of remanufacturing is extremely high. .

(Means for Solving the Problems) In view of the above-mentioned circumstances, it is an object of the present invention to provide a device that uniformly, automatically and continuously regenerates various mountain retaining parts.

That is, in order to achieve the above-mentioned object, the continuous regeneration apparatus for retaining parts of the present invention includes a hanger conveyor in which a large number of hangers for suspending retaining parts are attached at predetermined intervals and endlessly circulate. On the orbit of the hanger conveyor, there is a hanging station for hanging the retaining parts before recycling on the hanger, a surface preparation station for removing deposits and aged paint film of the retaining parts by shot blasting, and a finishing station for removing the deposits and aged paint film of the retaining parts by shot blasting. an air blowing station that uses air pressure to blow off shot particles and dust remaining on the retaining parts; a painting station that applies paint to the surface of the retaining parts after being air-blown; and a drying station that dries the painted film. A configuration is adopted in which receiving stations are sequentially provided to remove the dried retaining parts from the hanger.

Further, the invention of claim (2) further includes a dripping station that is provided between the painting station and the drying station to shake off excess paint adhering to the retaining parts by centrifugal force, and further, claim (3) In each of the inventions, a configuration is adopted in which the painting station performs shower painting.

(-Effect) The collected pile parts are hung on the hanger conveyor by hanging them one by one on the hangers that move sequentially at the station.
They are hung one by one and first shot blasted at a leveling station to remove dirt, mortar and other deposits from the construction site, as well as aged paint and rust, and leveled to the extent that the bare surface is exposed. At the station, shot particles remaining in the recesses of the retaining parts and dust generated during surface leveling are blown away by high-pressure air. After leaving the air blow station, the retaining parts are coated with anti-rust paint at the painting station, and then passed through the drying station, where the paint film is dry, and moved to the receiving station, where they are removed from the hanger. It will be removed and shipped as a recycled product. The hanger from which the recycled clasp part has been removed is then moved to a hanging station, where the clasp part before being recycled is hung in the same manner as described above, and the above-mentioned regeneration process is repeated.

The coating at the painting station is not particularly limited, but since it is difficult to uniformly coat the shape of the retaining parts and the inner surface of the recess with general spray painting, shower painting or dipping painting is preferable. Alternatively, when dip coating is employed, it is desirable to interpose a dripping station between the coating station and the drying station to shake off excess paint using centrifugal force.

The drying means at the drying station may be any suitable method depending on the properties of the paint, and heating drying may be used, but for paints using highly volatile solvents, simple air drying using a blower is sufficient.

(Example) Hereinafter, the present invention will be specifically described based on illustrated examples.

1 and 2, reference numeral 1 denotes a hanger conveyor, and a large number of hangers 2 are suspended at required intervals on a guide rail 1a made of horizontal H-shaped steel arranged annularly in plan view. 2 is connected to a drive chain lb (see FIG. 6) disposed directly below the guide rail 1a, and is configured to rotate endlessly as a unit as the drive chain 1b is driven. Therefore, on the orbit of the hanger conveyor 1, from the front stage side to the rear side, the hanging station 3, the surface leveling station run 4, the air plow station 5, the painting station 6, the dripping station 7, and the drying station 8. ,
A receiving station 9 is provided and the hanging station 3 is located adjacent to the outside of the receiving station 9. In addition, in the orbit of the hanger conveyor 1, the hanging station 3 and the receiving station 9 are set at a lower position than the others, and the drying stage gin 8 is set as shown in Fig. 3.
Then, as shown in Fig. 2, the hanging from the receiving station 9 turns outward by about 90'' at the same height to the station 3, and then from the station 3 to the leveling station. It is configured to turn upward by approximately 90 degrees to the 4th side and then tilt upward.

For hanging, a table lifter 11 with a free roller 11a is installed at the station 3, and a retaining part 12 carried in by a crane (the path shown) is placed on the table lifter 11 at the outer end of the table lifter 11. A guide stand to which the conveying driving roller conveyor 13 is connected, is located directly below the ascending slope of the hanger conveyor l, and has a plurality of protrusions 14a on its surface parallel to the orbital direction of the hanger conveyor 1 in plan view. 14 have been installed.

The receiving station 9 has a free roller 15 on the top surface.
A stand 15 is installed for the movable light having a. This movable light has a stand 15, a retaining part 12 and a jack cover 12g (
In the case of a long object such as a long cover plate 12e (see Fig. 7G) or a long cover plate 12e (see Fig. 7E), the retaining part, which is suspended and moved by the hanger 2, is not held in an inclined position. By restoring it to the horizontal state after it has been laid down on the upper surface, it is intended to prevent impact during receiving and to facilitate removal from the hanger. The hanger conveyor 1 is naturally moved onto the free roller 15a by the downward trajectory. The movable light is connected to the unloading side end of the table 15 to an inclined free roller conveyor 16a whose hanging is parallel to the trajectory of the hanger conveyor 1 heading from the station 3 to the leveling station 4 in a plan view. This inclined free roller conveyor 168 is gently inclined so that the discharge side is lower, and is suspended from the receiving station 9 together with the curved slat conveyor 16b connected to the discharge side end and the linear slat conveyor 16c connected thereto. The hangers constitute a series of (7) output conveyors 16 extending below the track of the hanger conveyor 1 between the station 3 and the leveling station 4 to the recycled product accumulation side.

A plate accumulation station 18 is provided in the middle of the linear slat conveyor 16c, and a plate accumulation station 18 is provided at the end of the discharge conveyor 16.

As shown in FIGS. 4 to 6, the hanger 2 is movable on the guide rail la of the hanger conveyor l by sandwiching the guide rail la of the hanger conveyor l with a pair of guide rollers 19 and 19 on each side provided at the top end. The mounting arms 19a of each guide roller 19 are inserted into the rings of the drive chain 1b so that they move together in one direction along the guide rail la as the drive chain Ibf) rotates. has been done. The drive chain 1b is rotatably supported by a guide rail la via a pair of similar mounting arms 19a and guide rollers 19 on both sides attached to key points, and the chain drive control device 10
(See FIGS. 1 and 2).

Thus, each hanger 2 includes an upper holding cylinder 20 pivotally attached to a horizontal par 19b supported by four mounting arms 19a via a bracket 20a at the top, and a lower flange portion 2 of the upper holding cylinder 20.
0b via the annular spacer 21 to the upper end flange portion 22a.
is bolted to the lower holding cylinder 22, this lower holding cylinder 2
2 through a pair of hair rings 23a, 23a, and at the upper end protruding into the upper holding cylinder 20, a thrust bearing 23b and a screw to prevent removal)
A rod 24 is held by the annular spacer 21 via a rod 24a so as to be rotatable in the circumferential direction but not movable up and down, and a short cylindrical drum 25 that opens upward and is fixed to the lower part of the rod 24.
, a suspension rod 27 whose upper end is bolted and connected to the lower end of the rod 24 via a connecting tube 26, a sprocket 28 fixed to the connecting tube 26, and a length in plan view bolted to the lower end surface of the connecting tube 26. It is comprised of an elliptical orientation control Fi, 29, and a swing stopper 3o supported by the lower holding cylinder 22 via a pair of inverted-shaped mounting rods 30a, 30a. However, the return stopper 3o is a long double roof-shaped defense plate 3 in the front and back.
0b and a pair of front and rear guide rollers 30c attached above the guide rollers 30c, which are disposed below the direction regulating plate 29, through which the suspension rod 27 passes without contact.

Reference numeral 31 denotes a hanging device for hanging the retaining part 12 on the hanger 2, and the hook is a ring 31a, two chains 31b, 31b connected to this, and a L connected to the lower end of each chain 31b. The ring 31a is configured to detachably hook the ring 31a to the lower end hook portion 27a of the hanging rod 27 of the hanger 2.

The type of remanufactured retaining part 12 to be suspended on the hanger 2 does not matter, but specific examples thereof include a corner piece 12a as shown in FIG. 7A, a fire receiving piece 12b as shown in FIG. 8,
A flexible piece 12c as shown in C in the figure, an auxiliary piece 12d as shown in the figure, a cover plate 12e as shown in E in the figure,
Examples include a giraffe jack t2r as shown in FIG. F, a jack cover 12g as shown in FIG. G, an oil jack receiving piece 12h as shown in FIG. In other words, these Yamadome parts! Since each of 2a to 12i has a plurality of bolt holes 32, the hook member 31c of the tool 31 can be hung from the required bolt hole 32.
, 31c, the hanging device 31 can be easily attached.
It can be hung on the hanger 2 via the hanger 2, and the hanging can be easily removed from the tool 31. In addition, these retaining parts 12a-
There are multiple types of 121 with different dimensions, and the weight of the retaining members 12 we usually handle ranges from 6 to 210.
kg, and the largest one is 1500 m.
There is a certain length.

As shown in FIGS. 1 and 2, the surface preparation station 4 and the air blow stage ten 5 are provided in an integrated processing chamber 33. A plurality of shot blasting devices 4a that eject particles by centrifugal force are installed so as to be able to project the shot particles from various directions onto the retaining part 12 suspended by the hanger 2. Furthermore, air nozzles 5a are installed in the air blowing station 5 at the rear stage to blow high pressure air from a plurality of directions onto the retaining parts 12 that have been moved from the leveling station 4.

A hanger rotation drive device 34 as shown in FIGS. 8 and 9 is installed above the leveling station 4 and the air plow stage type 5, respectively. This rotary drive device ff134 has a vertical box-shaped mounting frame 34a.
A vertical drive shaft 35 is rotated by a drive motor 35a.
b is attached, and a drive sprocket 35 is fixed to the lower end of the drive shaft 35b, and a driven sprocket 36 is pivotally attached to the lower surface side of the mounting frame 34a via a bearing 36a.
An endless chain 37 is wound between the hanger 2 and the hanging rod 27 of the hanger 2. By pressing the chain 37, the chain 37 is engaged with the sprocket 28 of the hanger 2 through a guide plate 38 and driven to run. It is designed to rotate. Note that the guide plate 38 is connected to a pair of brackets 34b fixed to the lower surface side of the mounting frame 34a.
, 34b via two screw shafts 38a, 38a so that the amount of protrusion can be adjusted.

Therefore, the processing at the leveling station 4 and the air blowing station 5 is carried out in a state in which the retaining part 12 is rotated on its own axis by the drive of the rotary drive device 34, usually at a speed of about 10 to 30 rpm. In the surface leveling station 4, guide rails 4b and 4 made of channel material are arranged facing each other at the upper part as shown by the dashed line in FIG.
b, and the hanger 2 is configured such that the two pairs of guide rollers 30c of the anti-sway device 30 fit into the guide rails 4b, 4b to prevent shaking due to impact during shot blasting. There is. The protection plate 30b functions to protect the upper part of the hanger 2 by blocking shot particles, but even if shot particles that cannot be blocked fly into the roller 25, the holes 25b provided in the bottom plate 25a
more excreted.

In addition, 4c in FIGS. 1 and 2 is a shot particle collection device that collects the shot particles that are injected and accumulated at the bottom of the processing chamber 33 and supplies them again to the shot blasting device 4a, and 39 is a shot particle recovery device that collects the shot particles that have been injected and accumulated at the bottom of the processing chamber 33, and 39 is a duct 39a. This is a duct collector that suctions and removes dust inside the processing chamber.

The retaining part 12 before being regenerated is hung from the hanger 2 which is in the lowered state at the hanging station 3 via the hanging tool 31.
They are hung one by one and lifted upward along the trajectory of the hanger conveyor l, and then moved to the leveling station 4, where deposits such as mud and mortar, as well as aged paint and mackerel, are removed. It is removed by shot blasting and smoothed to the extent that the skin is exposed. Next, when entering the air plow station 5, shot particles and dust remaining in the recesses etc. are blown away by high pressure air.

The coating station 6 is comprised of a shower coating device 40 provided within the coating room 6a, and a hanger rotation drive device 34 similar to the above described provided above the coating chamber 6a. As shown in FIG. 10, the shower coating device 40 consists of a large number of paint outlet pipes 40a disposed on both sides and the bottom of the painting chamber 6a, and each outlet pipe 40a carries paint. A plurality of spout ports 40b and cocks 40c are provided to blow out the air in a shower shape, and the rotary drive device 34
By pouring paint from various directions onto the retaining part 12 which is rotating at approximately rp+w, the retaining part 1 is
The entire surface, including the inner surface of the recess 2, is coated with a significant excess of paint. Note that it is not necessary to open all the spout ports 40b, and if the type of retaining part 12 to be recycled is determined to some extent, unnecessary spout ports 40b can be closed with plugs accordingly. The choice can easily be made empirically.

The dripping station 7 includes a dripping chamber 7a and a high-speed rotation drive device 41 provided above the dripping chamber 7a. As shown in FIGS. 11 and 12, this high-speed rotation drive device 41 includes a drive roller stand 41a equipped with one drive roller 42 that is rotationally driven via a drive motor 42a;
A driven roller stand 41b equipped with two driven rollers 43, 43 is mounted on mounting base frames 44a, 44b facing each other with the moving part of the hanger 2 in between.
They are attached so as to be movable relative to each other in the directions of distance and distance by driving of b. 46a and 46b are U-shaped guide rails 48a which are fixed to one side of the mounting base frames 44a and 44b and into which guide rollers 47a and 47b of both sides 41a and 41b are fitted;
, 48b are also fixedly installed on the opposite side, and both sides 41a, 41
50 is a convex guide rail on which the downward U-shaped guide members 49a and 49b slide, and 50 is a bolt for setting the protrusion/retraction position of the driven roller stand 41b. Note that both the driving roller 42 and the driven rollers 43, 43 are lined with urethane rubber 51 to prevent slipping.

In this hanging station 7, both sides 41a,
41b is kept on standby at the retreating limit position, and when the hanger 2 that has been moved from the painting station 6 stops between the two sides 41a and 41b, the two sides 41a and 41b are moved in the approaching direction to show the drum 25 of the hanger 2. It is sandwiched between the driving roller 42 and the driven rollers 43 and 43 as shown in FIG. By rotationally driving the drive roller 42 in this state, the hanging rod 27 of the hanger 2 rotates, and the retaining part 12 rotates accordingly. Here, by setting the rotation speed of the suspension rod 27 at a high speed of about 100 to 150 rρ-, the excess paint adhering to the retaining part 12 is shaken off by the centrifugal force accompanying the high-speed rotation, and the entire surface is covered. The coating film has a substantially uniform thickness.

The drying station 8 is constructed by installing a plurality of blowing fans 8b between partition walls 8a and Ba provided on both sides of the track of the hanger conveyor 1, and the hanger 2 leaving the hanging station 7 is connected to both partition walls 8a.

2n of the retaining part 12 suspended in the process of moving between 8a
Q is set to air dry.

The thus-regenerated retaining part 12 moves downward along the trajectory of the hanger conveyor 1 to the receiving station 9, but since the direction in the hanging state is not constant due to rotation at the hanging station, If left as is, there is a risk that the movable bones of the receiving station 9 may come into contact with the corners when placed on the table 15 and roll over. For this reason, a direction regulating guide 52 in the shape of a letter in plan view is provided in front of the receiving station 9 as shown in FIG. The rod 27 is corrected so that the long sleeve direction of the regulating plate 29 and the moving direction of the hanger 2 match. Therefore, by predetermining the bolt holes 32 for hanging with both hook members 31c, 31c of the tool 31, depending on the shape of the retaining part 12, that is, the type, the receiving station 9
Since the loading posture is constant, the above-mentioned danger can be avoided.

Note that 53 in FIG. 2 is a control panel for controlling the drive of the hanger conveyor 1 and the stations 4 to 7 attached thereto.

The movable frame of the receiving station 9 is the retaining part 12 placed on the stand 15, and the operator now removes each hook member 31c of the loosened hanging tool 31 from the bolt hole 31c. It is separated from the hanger 2, pushed by hand on the inclined free roller conveyor IGa, and transferred onto the curved slat conveyor 16b, and then automatically transported to the discharge side by the conveyor 16b and the linear slat conveyor 16c. In addition, during the unloading process, the conveyor 16b
The passage of the retaining part 12 is confirmed by the phototube 54 (see FIG. 2) near the end of the terminal and in front of the general accumulation stage 18. Therefore, the retaining part 12 is attached to the cover plate 1.
If the number of sheets is 2e, the pusher 17a at the plate collection station 17 sends the sheets out from above the conveyor 16c to the side, and the receiver is stopped at the collection stand 17b, where they are stored in a vertically stacked state until a predetermined number of sheets is reached. In addition, the retaining parts 12 other than the cover plate 12e are transferred onto the slat conveyor 18a of the general accumulation station 18,
When a certain number of pieces are accumulated on the conveyor 18a, they are delivered onto a side ramp 18C by a pusher 18b, and transported by a crane or the like to a shipping position or onto a shipping vehicle.

In addition, in the present invention, the line configuration of the guide rail 1a of the hanger conveyor 1, the structure and drive means of the hanger 2,
Regarding details such as the equipment configuration in the station 3 and the receiving station 9, the design of the hanger can be changed in various ways other than the above embodiment.

(Effects of the Invention) According to the continuous recycling device of the present invention, deposits and aged paint films can be removed from various mountain retaining parts of different shapes, sizes, weights, etc. that have been used and collected for mountain retaining construction. A series of regeneration processes such as surface preparation, repainting, and drying can be performed automatically and continuously at high efficiency, which was previously limited to manual work one by one. This greatly reduces the time, effort, and effort involved, making it possible to significantly reduce reprocessing costs.

In addition, the surface preparation station of this regeneration equipment uses shot blasting, which injects shot particles using centrifugal force. etc., and does not require the drying process that is essential in high-pressure water washing.It also consumes less energy than sandblasting, which sprays sand grains with high-pressure air, and allows the recovery and reuse of sand particles. Since it can be used, it has the advantage that the surface preparation cost is low.

On the other hand, in the invention of claim (2), it is possible to uniformize the coating film thickness by shaking off excess paint adhering to the retaining parts after painting using centrifugal force. This method has the advantage that it is possible to use a coating method that applies a large amount of paint, such as dip coating, and that it is possible to uniformly coat even complex-shaped retaining parts that have deep recesses.

Furthermore, in the invention of claim (3), since shower coating is adopted as the coating means at the coating station, there is a possibility that the uniformity of the coating may be influenced by the shape of the object to be coated, as in the case of spray coating on a boat. Moreover, compared to dip coating which requires raising and lowering the object to be coated, there are advantages in that the equipment structure of the coating section is simplified and the length of the coating station can be shortened to increase space efficiency.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention. Figure 1 is an overall perspective view of a continuous regeneration device for retaining parts, Figure 2 is a schematic plan view showing the overall arrangement of the same device, and Figure 3 is a schematic plan view showing the overall arrangement of the same device. Figure 4 is a front view of the hanger, Figure 5 is a sectional view taken along the line V-V cotton in Figure 4, and Figure 6 is a hanger. Side view of the hanger installation part of the conveyor, Figures 7 (A) to (1)
) is a perspective view showing an example of a retaining part, FIG. 8 is a vertical side view of the hanger rotation drive device, FIG. 9 is a sectional view taken along the [-1X line in FIG. FIG. 11 is a cross-sectional plan view of the high-speed rotary drive device, FIG. 12 is a vertical cross-sectional side view of the same as the above, and FIG. 13 is a plan view of essential parts for explaining the orientation correction operation of the hanger. 1... Hanger Conhairer, 2... Hanger, 3...
・Hanging is stage gin, 4... surface preparation station,
4a... Shot blasting device, 5... Air blow
Station, 5a... Air nozzle, 6... Painting station, 7... Drip cutting station, 8...
Drying station, 9...Receiving station, 12
．． 12a to 12i... Yamadome parts, 40... Shower coating device.

Claims (3)

[Claims] (1) A hanger conveyor is provided, in which a large number of hangers for suspending the retaining parts are attached at predetermined intervals and move endlessly, and on the orbit of the hanger conveyor,
A hanging station that hangs the retaining parts before recycling on the hanger, a leveling station that removes deposits and aged paint film from the retaining parts by shot blasting, and shot particles remaining on the retaining parts after shot blasting. and an air blow station that blows off dust using air pressure, a painting station that applies paint to the surface of the retaining parts after air blowing, a drying station that dries the painted film, and a drying station that removes the dried retaining parts from the above hanger. A continuous recycling device for mountain retaining parts, which is provided with receiving stations to be removed in sequence. (2) The continuous recycling apparatus for retaining parts as set forth in claim (1), further comprising a dripping station that shakes off excess paint adhering to the retaining parts by centrifugal force between the painting station and the drying station. . (3) The continuous recycling apparatus for retaining parts according to claim (1) or (2), wherein the painting station performs shower painting.