JPH1122184A - Scaffold board cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffold board cleaner promoting cleaning treatment capacity so that a plurality of scaffold boards can be automatically supplied to the scaffold board cleaning device. SOLUTION: This device is so constituted that a scaffold board conveying conveyor 3 connecting three chain conveyors 3a, 3b and 3c in series is provided on scaffold board conveying side of a cleaning machine for removing adhesion of dirt adhered to a scaffold board, and conveying speeds of the chain conveyors 3a, 3b and 3c are controlled to have a coneying speed controlling device 4 for separating the scaffold board on the conveying conveyor 3 into specific number of rows each. The scaffold board separated into specific number of rows each with the conveying conveyor 3 is held by a depalletize 5 and is sent to the cleaning machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold plate cleaning apparatus for removing deposits, such as concrete and paint, adhering to a scaffold plate used for a temporary scaffold for construction work.

[0002]

2. Description of the Related Art In the construction work of buildings, a number of building frames are juxtaposed in the vicinity of the buildings, and the building frames are piled up according to the height of the buildings, and a scaffold plate is hung between the building frames. We hand over and form temporary scaffolding and perform construction work.

[0003] When the construction work is completed, a predetermined number of these building frames and scaffolding boards are stacked and collected by steel tape or the like. The collected scaffolds are used to remove deposits such as concrete and paint that have adhered during construction to prepare for the next construction.

[0004] As a device for removing deposits on the scaffold plate,
2. Description of the Related Art A polisher that removes deposits by applying an impact or frictional force is known. The scavenger is provided with a scaffold board carrying conveyor in combination, and the scaffold boards are sent one by one to the scrubber in the longitudinal direction by the carrying conveyor, while the scaffold board passes through the scrubber. The impact is applied to the scaffold to remove extraneous matter.

[0005]

However, the scaffold plate polisher described above does not have any problem when the standard scaffold plates are fed one by one to clean, but for example, a long scaffold plate or a mini scaffold plate is used. When lapping a half-width scaffold plate whose width is half that of a standard scaffold plate like this, there is a margin in the processing width of the polisher, and it is inefficient to clean scaffold plates one by one. Become. Therefore, it is desired that two half-width scaffolds be simultaneously polished when the half-width scaffolds are cleaned.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a scaffold plate polisher capable of automatically supplying a plurality of scaffold plates to a scaffold plate polisher, thereby improving the blast treatment capacity. .

[0007]

According to the present invention, in order to achieve the above-mentioned object, a plurality of carry-in conveyors are connected in series before a feed conveyor for supplying a scaffold to a scrubber. A transport speed control device for controlling the transport speed of the carry-in conveyor and separating the scaffold plates on the carry-in conveyor by a predetermined number of rows is provided, and the scaffold boards of the predetermined number of separated rows on the carry-in conveyor are sequentially sandwiched from the upper stage. It is characterized in that a depalletizer to be transferred onto the infeed conveyor is provided.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In the scaffold plate cleaning apparatus of the present invention, when processing a half-width scaffold plate, first, the half-width scaffold plate is stacked on a carry-in conveyor after a carry-in conveyor in which plural units are connected in series. In a row or in a plurality of rows. The half-width scaffold plate on the carry-in conveyor is transported forward by the carry-in conveyor, and when the first row of the scaffold plate reaches the beginning of the subsequent carry-in conveyor, the preceding carry-in conveyor is driven to transfer the first row to the preceding carry-in conveyor. Let When the first row is transferred to the preceding conveyor, the driving of the preceding conveyor is stopped and the arrival of the second-row half-width scaffold plate is waited. Then, when the second-row half-width scaffolding plate reaches the leading end of the subsequent loading conveyor, the preceding loading conveyor is driven to move over the second row in the same manner as described above. Thus, when the two rows of half width scaffolding boards are transferred to the loading conveyor at the preceding stage, they are transferred as they are forward. In the meantime, if a half-width scaffolding plate of the next row is placed on the subsequent loading conveyor, in order to maintain a predetermined distance from the row of half-width scaffolding plates on the preceding loading conveyor, The speed of the loading conveyor is reduced or stopped so that the space between the conveyor and the row of half width scaffold plates at the preceding stage is increased by a predetermined distance.

When the two rows of half-width scaffolding plates reach the leading end of the preceding conveyor, the two rows of half-width scaffolding boards are transferred to the lower part of the depalletizer. The two upper half-width scaffolds are sandwiched and transported to a scrubber, and the two half-width scaffolds are cleaned simultaneously.

[0010]

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

FIG. 1 is an overall plan view of a blasting apparatus. In the figure, reference numeral 1 denotes a blasting machine for removing deposits adhered to the surface of a scaffold plate as temporary equipment. The scrubber 1 is configured to rotate a rotating shaft or a steel brush to which a large number of chains or steel rings are attached, to apply an impact to the surface of the scaffold plate, or to rub the scaffold plate to remove deposits. Therefore, a model corresponding to the type of the deposit is appropriately used.

A feed conveyor 2 composed of a roller conveyor for transferring the scaffold plate in the longitudinal direction is provided on the feed side of the polisher 1.

The feed conveyor 2 is provided with a carry-in conveyor 3 for carrying a scaffold plate in a direction perpendicular to the feed conveyor. The carry-in conveyor 3 has three chain conveyors 3a, 3b, 3c.
The transport speed of the chain conveyors 3a, 3b, 3c is controlled by the transport speed control device 4 so that the scaffolds can be separated by a predetermined number of rows as described later. When the scaffold plate is carried in, the scaffold plate is placed on the carry-in conveyor 3 so as to lie down, and the scaffold plate is conveyed in the lateral direction.

A depalletizer 5, which is a transfer device for nipping and transferring both ends of the scaffold plate, is disposed above the carry-in conveyor 3 and the blasting machine 1. The depalletizer 5 has a gantry 6 disposed so as to straddle the carry-in conveyor 3 along the carry-in conveyor 3, and lays a traveling rail 7 on the gantry 6 along the longitudinal direction of the gantry 6. A rack gear 8 is provided along the rail 7 for use.

As shown in FIG. 3, a traveling body 9 traveling along the traveling rail 7 is disposed on the traveling rail 7, and a traveling motor 10 is mounted on the traveling body 9;
0, the pinion gear 11 is attached to the
Are meshed with the rack gear 8 to drive the traveling body 9 by driving the traveling motor 10.

A support plate 12 is suspended near the center of the traveling body 9, and a pair of slide shafts 1 which are guided by a guide member 13 and slide vertically.
A lifting beam 16 that moves up and down by the operation of the cylinder 15 is attached to the lower end of the slide shaft 14 in a direction perpendicular to the traveling direction of the traveling body 9.

The elevating beam 16 is a beam slightly longer than the scaffold plate, and a scaffold plate holding body 17 is disposed at both ends thereof. In the scaffold plate holding body 17, a guide shaft 18 is disposed along the lifting beam 16, and a slide plate 20 is attached to a guide member 19 that slides along the guide shaft 18 on the guide shaft 18, respectively. And each sliding plate 2
0 is attached to the movable part of the rodless cylinder 21 so that the sliding plates 20 arranged on both sides of the lifting beam 16 can be moved closer and away from each other by driving the rodless cylinder 21. Furthermore, both ends of a chain 23 wound around a sprocket 22 provided at one end of the lifting beam 16 are connected to each sliding plate 20, and the rodless cylinder 2
The movement of the sliding plates 20 is synchronized with each other by the chain 23 when the sliding plates 20 are moved closer to and away from each other by the drive of the first drive.

Each of the sliding plates 20 has a support arm 2
4 is hung down, and a sleeve member 25 protrudes inward at the lower end of the support arm 24. A turning shaft 26 is rotatably fitted in the sleeve member 25, and a scaffolding plate holding device 27 for holding a short side portion of the scaffold plate is fixed to an inner end of the turning shaft 26. A sprocket 28 is attached to the other end of 26. And the support arm 24
Above the sleeve material 25 is a rotary chopper 29
And a sprocket 30 attached to the rotary chopper 29 and the sprocket 28
1 to rotate the scaffolding plate holding device 27 by driving the rotary chopper 29.

As shown in FIG. 5, two short scaffolds of the two half width scaffolds are sandwiched from both sides by two pairs of front and rear scaffold sandwichers 27 to hold the two scaffolds in a parallel state. It can be transported, and when one standard scaffold plate is clamped, it is clamped using only one of the two pairs of scaffold plate clamps 27.

As shown in FIG. 5, one end of the support arm 24 has a front / back discrimination sensor 32 for discriminating the front and back of the scaffold.
Is installed. As a method of determining the front and back of the scaffold plate, the direction of the locking fittings attached to both ends of the scaffold plate, the direction of the scaffold plate main body, and the like are detected, and the discrimination is made based on the difference between the front and back shapes.

A lifter 33 is provided in front of the leading end of the carry-in conveyor 3 to temporarily receive the carried scaffold plate and to easily hold the scaffold plate when the scaffold plate is transferred to the cleaning machine 1 by the depalletizer 5. doing.

The feed conveyor 2 is provided with a scaffold plate receiving device 34 for receiving a scaffold plate transferred to the feed conveyor 2 by the depalletizer 5.
With the operation of the cylinder 35, the support 3
The scaffold plate is received by an elevating arm 38 that can be moved up and down along 7 and is transferred onto the infeed conveyor 2.

Further, a discharge conveyor 39 for discharging the scaffold plate from the cleaner 1 is disposed on the discharge side of the cleaner 1, and the discharge conveyor 39 also employs a roller conveyor.

At the end of the discharge conveyor 39, an unloading conveyor 4 for unloading the scaffold plate in a direction perpendicular to the discharge conveyor 39.
0, and the discharge conveyor 39 and the unloading conveyor 4
0 is connected to the discharge conveyor 39 from the discharge conveyor 39.
A palletizer 41 for stacking a predetermined number of scaffolds to transfer the scaffolds to the scaffolding board stacking station on top of the stacker is provided.

At the end of the discharge conveyor 39, a scaffolding plate positioning device 42 for aligning the scaffolding plate discharged from the polisher 1 at a predetermined position, and a floating device 43 for floating the scaffolding plate.
Is arranged. A reversing device for reversing the scaffold may be provided at this position.

Thus, when the scaffolding plate cleaning apparatus of the present invention performs the cleaning process for two half-width scaffolding plates M two by two, as shown in FIG. The half-width scaffolding boards M that are stacked and packed and returned from the site in a predetermined number are placed on the chain conveyor 3c located at the step. At this time, the half-width scaffolds M to be placed may be arranged in each row, or a plurality of rows may be placed at one time.

Then, the steel tape for packing is cut off, and the conveyor speed controller 4 of the carry-in conveyor 3 is operated to first drive the chain conveyor 3c. When the sensor (not shown) detects that the first row of the half width scaffolds M on the chain conveyor 3c reaches the leading end of the chain conveyor 3c, that is, as shown in FIG. Then, the driving of the front chain conveyor 3b is started, and the long scaffold M in the first row on the chain conveyor 3c is moved to the side of the chain conveyor 3b.

When the half width scaffolding plate M in the first row moves onto the chain conveyor 3b, the driving of the chain conveyor 3b is stopped, and the next half width scaffolding plate M is attached to the tip of the chain conveyor 3c.
Wait for the column to arrive. When the sensor detects that the next row of half-width scaffolding boards M has reached the tip of the chain conveyor 3c, the chain conveyor 3b is again turned on as shown in FIG.
Is driven to move the next half-width scaffolding board M to the chain conveyor 3b side so that the two rows of half-width scaffolding boards are aligned so as to overlap with the row of the half-width scaffolding board that has been transferred earlier. At this time, when the next half-width scaffold plate M is placed on the chain conveyor 3c, the driving of the chain conveyor 3c is temporarily stopped, and the movement of the half-width scaffold plate M on the chain conveyor 3c is stopped.

When the two rows of half width scaffolds M are arranged on the chain conveyor 3b in this way, the chain conveyor 3b is continuously driven to convey the half width scaffolds M on the chain conveyor 3b to the leading end of the chain conveyor 3b. At this time, if the next half-width scaffolding plate M is placed on the chain conveyor 3c, the driving of the chain conveyor 3c is temporarily stopped to stop the movement of the half-width scaffolding plate M on the chain conveyor 3c.

When the sensor detects that the half width scaffold plate M on the chain conveyor 3b has reached the tip of the chain conveyor 3b, the front chain conveyor 3a is driven to drive two rows of half width scaffold plates on the chain conveyor 3b. Transfer M to the chain conveyor 3a.

When the two rows of half width scaffolding boards M on the chain conveyor 3b move onto the chain conveyor 3a, the chain conveyor 3b becomes empty as shown in FIG. 9 and the two rows of half width scaffolding boards M on the chain conveyor 3a. The distance between M and the half-width scaffold M on the chain conveyor 3c will be at least as long as the length of the chain conveyor 3b.

The two rows of half width scaffolds M on the chain conveyor 3a are further moved forward and transferred to the lifters 33.
By repeating such an operation, two rows of half width scaffolds M are sequentially fed into the lifter 33.

On the upper side of the lifter 33, the scaffolding plate holding body 17 is provided.
And the scaffolding plate holding body 17 is lowered, and the two half-width scaffolding plates M at the top of the two rows of half-width scaffolding plates M on the lifter 33 are paired with two pairs of scaffolding holding devices. Feed conveyor 2 at the same time as being pinched and raised at 27
Move towards.

At this time, if it is necessary to turn the half width scaffold M upside down, the rotary chopper 29 is operated to turn it 180 degrees.

The scaffolding plate holding body 17 which has reached the feeding conveyor 2 is lowered and waits at a lower position, and the two half-width scaffolding plates M held on the elevating arm 38 of the scaffolding plate receiving device 34.
Release and transfer. When the lifting arm 38 descends, the two half-width scaffolds M carried on the lifting arm 38 are transferred to the conveyor 2 side, and the two half-width scaffolds M are simultaneously sent to the cleaning machine 1.

The adhering matter is removed by the scrubber 1 and the two half-width scaffolds M are ejected from the scavenger 1 onto the discharge conveyor 39. When the scaffold M reaches the end of the discharge conveyor 39, the scaffold plate positioning device 42 is used. The sheet is pressed against one side of the discharge conveyor to be aligned, and is further lifted by the levitation device 43 to wait at a predetermined position. When the reversing device is provided, if it is necessary to reverse the front and back, the reversing is performed by 180 degrees.

When the palletizer 41 is lifted up by the levitation device 43 to stand by, the scaffolding plate holding body 17 of the palletizer 41 descends, and simultaneously holds the two half-width scaffolding plates M to stack the scaffolding plates on the carry-out conveyor 40. Transfer to the station and stack sequentially. When the number of stacked half-width scaffolds M reaches a predetermined number, it is packed on a carry-out conveyor 40 with steel tape and carried out to a storage place.

As described above, the three chain conveyors 3
a, 3b, 3c, the half-width scaffolding plate M can be aligned every two rows by controlling the speed of the carry-in conveyor 3 connected in series, and at the same time, the distance to the following half-width scaffolding plate M can be appropriately opened,
Further, the two half-width scaffolds M can be simultaneously held by the two scaffolds holding members 27 of the scaffold holding body 17 of the depalletizer 5 and sent to the scrubber 1.

When the standard scaffold plate is to be cleaned, the scaffold plates are aligned in a row by the carry-in conveyor 3 in the same manner as described above, and two pairs of scaffold plate holding members 17 of the scaffold plate holding body 17 of the depalletizer 5 are used. Using only one of the substrates 27, the scaffolding plate is sequentially clamped from the upper scaffold plate and sent one by one to the blasting machine 1 side for blasting treatment. Also, the palletizer 41 carries out the unloading using only one of the two pairs of scaffolding plate holding members 27 of the scaffolding plate holding body 17.

[0040]

As described above, in the scaffold plate cleaning apparatus of the present invention, a plurality of carry-in conveyors are connected and arranged in series before a feed conveyor for supplying a scaffold plate to the scrubber.
A transport speed control device for controlling the transport speed of the carry-in conveyor and separating the scaffold plates on the carry-in conveyor by a predetermined number of rows is provided, and the scaffold boards of the predetermined number of separated rows on the carry-in conveyor are sequentially held from the upper stage. A depalletizer to be transferred onto the infeed conveyor is arranged, and the scaffolds are arranged in a predetermined number of rows on the infeed conveyor and sequentially sent to the blasting machine by the depalletizer. In the case of a plate, a plurality of scaffold plates can be automatically supplied to the polisher, so that the blast treatment capacity can be improved.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a scaffold plate cleaning apparatus according to the present invention.

FIG. 2 is an enlarged view taken on line AA of FIG. 1;

FIG. 3 is an enlarged view taken on line BB of FIG. 2;

FIG. 4 is an enlarged view taken on line CC of FIG. 1;

FIG. 5 is a perspective view showing a state in which a half-width scaffold plate is held by a scaffold plate holding body.

FIG. 6 is an explanatory diagram showing a state in which a half-width scaffold is conveyed by a carry-in conveyor.

FIG. 7 is an explanatory view showing a state in which a half-width scaffold is conveyed by a carry-in conveyor.

FIG. 8 is an explanatory view showing a state in which a half-width scaffold is conveyed by a carry-in conveyor.

FIG. 9 is an explanatory diagram illustrating a state in which a half-width scaffold is conveyed by a carry-in conveyor.

[Description of sign]

DESCRIPTION OF SYMBOLS 1 ... Polishing machine 3 ... Carry-in conveyor 3a, 3b, 3c ... Chain conveyor 4 ... Transport speed control device 5 ... Depalletizer 17 ... Scaffold board holding body

Claims (1)

[Claims] A plurality of carry-in conveyors are arranged in series before a feed conveyor for supplying a scaffold plate to a scrubber, and the transfer speed of the carry-in conveyor is controlled to control the scaffold plate on the carry-in conveyor. A transport speed control device that separates a predetermined number of rows is provided, and a depalletizer that sequentially clamps the separated number of scaffolds on the carry-in conveyor from the upper stage and transfers the scaffolds to the infeed conveyor is provided. Scaffold plate cleaning equipment.