JPH1111673A - Scaffold plate grinding/polishing/cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffold plate grinding/polishing/cleaning device whose grinding/polishing/cleaning capability is enhanced by enabling scaffold plates to be loaded into and unloaded from a scaffold plate grinding/polishing/cleaning machine as they are arranged in one or two lines. SOLUTION: A depalletizer 5 or palletizer, serving as a scaffold plate transfer device having a scaffold plate clamping element 17 which clamps two scaffold plates M parallel to each other, is placed on at least either one of the loading or unloading side of a grinding/polishing/cleaning machine. Using two pairs of scaffold plate clamps provided at the scaffold plate clamping element 17, two scaffold plates are clamped in the case of half-width scaffold plates, and, in the case of a standard scaffold plate, one plate is clamped using only one of the two pairs of scaffold clamps, to load or unload the plates into or from the grinding/polishing/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 sweeper, and it is inefficient to clean the scaffold plates one by one. . 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 above, the present invention provides a scaffold plate polisher capable of freely carrying one or two rows of scaffolds into and out of a scaffold polisher, thereby improving the blasting capacity. The task is to

[0007]

In order to achieve the above object, the present invention provides a scaffold plate cleaning apparatus according to claim 1, wherein a scaffold plate carrying side of a scavenger for removing deposits on the scaffold plate is provided. On at least one of the discharge sides, a scaffold plate transfer device having a scaffold plate holding body for holding two scaffold plates in a parallel state is arranged. It is characterized in that it can be freely loaded and unloaded.

Further, in the scaffold plate cleaning device according to claim 2, two pairs of scaffold plate holding devices for holding the scaffold plate holding body from both sides of the short side of the scaffold plate and the scaffold plate holding device are brought close to each other. The scaffolding plate moving device is configured to be able to move forward and backward with respect to the short side surface of the scaffold plate, and the short side surface of the scaffold plate is pressed by a spring body. It is characterized in that it is biased in the direction in which it does.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the scaffolding plate cleaning apparatus according to the first aspect of the present invention, a scaffolding plate provided in the scaffolding plate transporting device is a standard scaffolding plate, and a single scaffolding plate is used. If this is the case, sandwich the two pieces and carry them into or out of the blasting machine. When the half width scaffold is cleaned by this,
The scaffold can be passed through two rows of scaffold plates to perform double blasting, thereby improving blasting performance.

In the scaffold plate cleaning apparatus according to the second aspect, when the two half-width scaffold plates are clamped by two pairs of scaffold plate clamps of the scaffold plate clamping body, the length of the half-width scaffold plate is increased. Saga,
For example, even if they are slightly different from each other, such as inch-size or millimeter-size ones, the scaffolding plate holding device can freely move in and out, and the spring body urges it in the pressing direction. The difference in length is absorbed by the appearance of the scaffolding plate holding device, and the two half-width scaffolding plates can be reliably held.

[0011]

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 that removes deposits attached to the surface of a scaffold plate as a temporary device. 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 a 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 orthogonal thereto. The carry-in conveyor 3 includes 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 loading the scaffold plate, the scaffold plate is placed on the carry-in conveyor 3 so as to lie on the scaffold plate, and is conveyed in the lateral direction of the scaffold plate.

A depalletizer 5 is disposed above the carry-in conveyor 3 and the scrubber 1 as a scaffold transfer device for nipping and transferring both ends of the scaffold. 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, and A rack gear 8 is provided along the rail 7.

A traveling body 9 traveling along the traveling rail 7 is disposed on the traveling rail 7, a traveling motor 10 is mounted on the traveling body 9, and a pinion gear 11 is attached to the traveling motor 10. The pinion gear 11 is meshed with the rack gear 8 and the driving body 10 is driven by the driving motor 10.
I want to run.

A support plate 12 is hung near the center of the traveling body 9, and a pair of slide shafts 1 slid in the up and down direction guided by a guide member 13.
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 scaffolding plate, and a pair of scaffolding plate holding members 17 is disposed at both ends thereof. The scaffold plate holding body 17 has a guide shaft 18 disposed along the elevating beam 16, and guide members 19 sliding on the guide shaft 18 along the guide shaft 18, respectively.
The sliding plate 20 is attached to the. Then, each sliding plate 20 is attached to the movable portion of the rodless cylinder 21 so that the sliding plates 20 disposed on both sides of the lifting beam 16 can be moved closer and away from each other by driving the rodless cylinder 21. I have.

Further, each of the sliding plates 20 has a lifting beam 1
6 is connected to both ends of a chain 23 wound around a sprocket 22 provided at one end of the slide plate 6, and the movement of the slide plate 20 by the chain 23 when the slide plate 20 approaches and separates by driving the rodless cylinder 21. Are in tune with each other.

Two pairs of support arms 24 are hung down on each of the sliding plates 20, and sleeve members 25 are protruded inward at the lower ends of the support arms 24. A revolving shaft 26 is rotatably fitted in the sleeve member 25, and a scaffolding plate holding device 27 for holding the short side of the scaffolding plate is attached to the inner end of the revolving shaft 26 so as to be able to advance and retreat. Body 2
8, the scaffolding plate holding device 27 is urged in the pressing direction. A sprocket 29 is attached to the other end of the turning shaft 26.

The sleeve material 25 of the support arm 24
A sprocket 31 attached to the rotary chopper 30 and the sprocket 29 are connected by a chain 32 so that the scaffolding plate holding device 27 is turned by driving the rotary chopper 30. ing.

Then, as shown in FIG. 5, the two half-width scaffolds are sandwiched from both sides by two pairs of front and rear scaffolding clamps 27 so that the two scaffolds are parallel to each other. The standard scaffold plate can be held and transported in a state, and when one standard scaffold plate is clamped, it is clamped using only one of the two pairs of scaffold plate clamps 27.

Further, on one side of the support arm 24, a front and back discrimination sensor 33 for discriminating between front and back of the scaffold plate is mounted. 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.

Further, a lifter 34 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 35 for receiving a scaffold plate transferred to the feed conveyor 2 by the depalletizer 5.
With the operation of the cylinder 36, the support 3
The scaffold plate is received by an elevating arm 39 which can be freely moved up and down along 8, and is transferred to the feed-in conveyor 2.

A discharge conveyor 40 for discharging the scaffold plate from the cleaner 1 is provided on the discharge side of the cleaner 1, and an end of the discharge conveyor 40 is provided in a direction orthogonal to the discharge conveyor 40. A conveyor 41 for unloading the scaffold is provided in
A palletizer 42 is provided as a scaffold plate transfer device for transferring a scaffold plate from the discharge conveyor 40 to a scaffold plate stacking station on the discharge conveyor 41 at a connection portion between the discharge conveyor 40 and the discharge conveyor 41. A predetermined number of scaffold plates are stacked on the carry-out conveyor 41 by 42.

At the end of the discharge conveyor 40, there is provided a scaffold plate positioning device 43 for positioning and aligning the scaffolds discharged from the polisher 1, and a floating device for floating these scaffolds. 44 are provided. Further, a reversing device for reversing the scaffold may be provided at this position as needed.

When two scaffolds M are to be scrubbed by the scaffold scrubber of the present invention, the scaffold M is located at the last stage of the carry-in conveyor 3 disposed in front of the scrubber 1. The half-width scaffolding boards M which are stacked and packed and returned from the site in a predetermined number are placed on the chain conveyor 3c. 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 chain conveyor 3c is first driven by operating the transfer speed control device 4 of the carry-in conveyor 3. When the first half width scaffolding plate M on the chain conveyor 3c reaches the tip of the chain conveyor 3c, the first row of the half width scaffolding plate M on the chain conveyor 3c starts driving the front chain conveyor 2c. Is transferred to the side of the chain conveyor 2c.

When the half width scaffolding plate M in the first row moves onto the chain conveyor 2c, the driving of the chain conveyor 2c 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 next row of the half width scaffolding plates M reaches the tip of the chain conveyor 3c, the chain conveyor 2c is driven again to transfer the next half width scaffolding plate M to the chain conveyor 2c side.

At this time, if the next half-width scaffolding plate M is further placed on the chain conveyor 3c and is going to move forward, the driving of the chain conveyor 3c is temporarily stopped and the half-width scaffolding on the chain conveyor 3c is temporarily stopped. The movement of the plate M is stopped.

When two rows of half width scaffolds M are lined up on the chain conveyor 2c, the chain conveyor 2c is continuously driven. When the half width scaffold M on the chain conveyor 2c reaches the tip of the chain conveyor 2c, the front chain The conveyor 1c is driven to transfer the two rows of half width scaffolds M on the chain conveyor 2c to the chain conveyor 1c.

When the two rows of half width scaffolds M on the chain conveyor 2c move onto the chain conveyor 1c, the chain conveyor 2c becomes empty, and the two rows of half width scaffolds M and the chain conveyor 3c on the chain conveyor 1c. Is opened by at least the length of the chain conveyor 2c.

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

Above the lifter 33, the depalletizer 5 having two pairs of scaffolding plate holders 27 is on standby, and the operation of the cylinder 15 causes the scaffolding plate holders 17 disposed at both ends of the lifting beam 16 to move. It descends and stops at the position where it wraps the two half width scaffolds M at the top of the two rows of half width scaffolds M on the lifter.

Next, the rodless cylinder 21 disposed along the lifting beam 16 is actuated to operate the scaffolding plate holding members 17 at both ends.
Is moved in the direction of approach, and the short-side portions of the two half-width scaffolds M are sandwiched by the two pairs of scaffolds 27 of the scaffold sandwiching body 17 to clamp the half-width scaffold M. At this time, even if the lengths of the two half-width scaffolding plates M to be clamped at the same time are slightly different, the scaffolding plate clamping device 27 can move forward and backward while being urged by the spring body 28, so that the difference in the lengths is slightly different. Absorb and securely hold both.

When the two half-width scaffolds M are simultaneously held in this way, they rise and move toward the feeding conveyor 2.
During this time, when it is necessary to turn the front and back of the half-width scaffolding plate M, the rotary chopper 30 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.
Release and transfer. Then, when the lifting arm 39 is lowered, the two half-width scaffolds M carried on the lifting arm 39 are transferred to the conveyor 2 side, and the two half-width scaffolds M are simultaneously sent to the cleaning machine 1.

Deposits are removed by the scrubber 1, and two half-width scaffolds M are discharged from the scrubber 1 onto the discharge conveyor 40. When the scaffolds M reach the end of the discharge conveyor 40, the scaffold plate positioning device 43. It is pressed against one side of the discharge conveyor 40 to be positioned and aligned. Then, these scaffolds are levitated by the levitating device 44 and stand by at a predetermined position. At this time, if a scaffold plate reversing device is provided, the scaffold plate is reversed as necessary.

When the palletizer 42 is standing by while being lifted by the levitation device 44, the scaffold plate holding body 17 of the palletizer 42 is lowered from above, and the two half-width scaffold plates M are simultaneously held, and the scaffold plates on the carry-out conveyor 41 are stacked. Transfer to the station and stack. When a predetermined number of the stacked half-width scaffolds M are stacked, they are packed on a carry-out conveyor 41 with steel tape and carried out to a storage place.

When the standard scaffold plate is to be cleaned, the scaffold plates are aligned in a row by the carry-in conveyor 3 as described above, and two pairs of scaffold plate holding members 17 of the depalletizer 5 are held. Utilizing only one of the tools 27, it is successively sandwiched from the upper scaffold plate and carried one by one into the blasting machine 1 side for lapping treatment. The palletizer 42 also carries out the unloading by using one of the two pairs of scaffolding plate holding members 27 of the scaffolding plate holding body 17.

[0042]

As described above, in the scaffold plate cleaning apparatus according to the first aspect of the present invention, at least one of the scaffold plate carry-in side and the discharge side of the scavenger that removes deposits on the scaffold plate. A scaffolding plate transfer device having a scaffolding plate holding body for holding two scaffolding plates in a parallel state, and the scaffolding plate transfer device allows single-row, double-row loading and unloading of the scaffolding plate to the scrubber. So that two half-width scaffolds can be inserted into and removed from the polisher simultaneously by holding the two half-width scaffolds together. This enables the plate to be polished, thereby improving the blasting capacity of a half-width scaffold plate.

Further, in the scaffold plate cleaning apparatus according to claim 2 of the present invention, the scaffold plate holding body is provided with two pairs of scaffold plate holding devices for holding the short side surface of the scaffold plate from both sides. The scaffolding plate moving device is configured to move the scaffolding plate holding device closer to and away from the shorter side surface of the scaffolding plate, and the scaffolding plate holding device is moved by a spring body. When the two half-width scaffolding plates are simultaneously clamped by the scaffolding plate holding body urged in the direction of pressing the short side surface of the scaffolding plate holding device even if the lengths of the two half-width scaffolding plates are slightly different. The length difference can be absorbed by the spring body that presses and biases the two half-width scaffolding plates without fail.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a polishing 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.

[Description of sign]

DESCRIPTION OF SYMBOLS 1 ... Scrubber 3 ... Carry-in conveyor 5 ... Depalletizer (scaffold board transfer device) 17 ... Scaffold board holding body 27 ... Scaffold board holding tool 28 ... Spring body 42 ... Palletizer (scaffold board transfer apparatus)

Claims (2)

[Claims] 1. A scaffolding plate transfer having a scaffolding plate holding body for holding two scaffolding plates in a parallel state on at least one of a scaffolding plate carry-in side and a scaffolding plate discharge side of a scavenger for removing deposits on the scaffolding plate. A scaffold plate cleaning device characterized in that the device is arranged and the scaffold plate transfer device can be freely loaded and unloaded into and out of the scaffold plate in a single row or double row. 2. The scaffold plate holding body comprises two pairs of scaffold plate holding devices for holding the short side surface of the scaffold plate from both sides, and a holding device moving device for moving the scaffold plate holding device toward and away from the scaffold plate. The scaffold plate holding device is capable of moving forward and backward with respect to the short side surface of the scaffold plate, and the scaffold plate holding device is biased by a spring body in a direction of pressing the short side surface of the scaffold plate. The scaffold plate cleaning device according to claim 1.