JP3876048B2 - Scaffold board cleaning device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a scaffold board cleaning apparatus for removing deposits attached to a scaffold board used in a temporary scaffold for building work, such as concrete and paint.
[0002]
[Prior art]
In building construction work, a number of building frames are placed side by side on the side of the building, stacked in stages according to the height of the building, and scaffolding boards are installed between each building frame. Forming and building work.
[0003]
When the construction work is completed, a predetermined number of these building frames and scaffolding boards are stacked and packed with steel tape or the like for collection. These collected scaffolds are prepared for the next construction by removing the deposits such as concrete and paint adhered during construction.
[0004]
As an apparatus for removing the adhering matter from the scaffolding plate, an abrading machine that removes the adhering matter by applying an impact or frictional force is known. This scavenger is arranged in combination with a conveyor for carrying the scaffold plate, and the scaffold plate is sent to the abrader one by one in the longitudinal direction by the carry-in conveyor, while the scaffold plate passes through the abrader. Deposits are removed by impacting the scaffolding plate.
[0005]
[Problems to be solved by the invention]
However, there is no problem with the above-mentioned scaffold board polishing machine when the standard scaffold board is fed one by one, but for example, a scaffold with a standard board width such as a long scaffold board or a mini scaffold board is used. When a half-width scaffold plate, which is half of the plate, is subjected to a polishing process, a margin is provided in the processing width of the polishing machine, and it is inefficient to perform the cleaning of the scaffold plates one by one. Therefore, it is desired that the two half-width scaffold plates are simultaneously subjected to the polishing treatment for the half-width scaffold plates.
[0006]
In view of the above-described points, an object of the present invention is to provide a scaffold plate polishing apparatus that can automatically supply a plurality of scaffold plates to a scaffold plate cleaner to improve the cleaning processing capability.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a plurality of carry-in conveyors connected in series before the feed conveyor that supplies the scaffold plate to the abrading machine, and controls the carrying speed of the carry-in conveyor. A depalletizer that includes a transport speed control device that separates a predetermined number of rows of scaffolding plates on the carry-in conveyor, and that sequentially holds the separated number of rows of scaffolding plates on the carry-in conveyor from the upper stage and transfers them onto the feed conveyor It is characterized by having arranged.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
In the scaffold board cleaning apparatus of the present invention, when processing a half-width scaffold board, first, in a state in which the half-width scaffold board is stacked on a subsequent-stage carry-in conveyor in which a plurality of feeds are connected in series. Place each column. The half-width scaffolding 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 top of the subsequent carry-in conveyor, the previous carry-in conveyor is driven and the first row is transferred to the previous carry-in conveyor. Make it. When the first row is transferred to the first-stage carry-in conveyor, the drive of the first-stage carry-in conveyor is stopped and the arrival of the second row half-width scaffolding plate is awaited.
Then, when the second row of the half-width scaffolding plate reaches the leading portion of the subsequent carry-in conveyor, the previous carry-in conveyor is driven in the same manner as described above to transfer to the second row. In this way, when the two rows of half-width scaffolding boards are transferred to the carry-in conveyor in the previous stage, they are transferred forward. During this time, when the next-stage half-width scaffolding plate is placed on the subsequent-stage carry-in conveyor, in order to maintain a predetermined distance from the half-width scaffold-plate row on the previous-stage carry-in conveyor, The speed of the carry-in conveyor is slowed down or stopped so that a predetermined distance from the row of the half-width scaffold plates in the previous stage is provided.
[0009]
When the two rows of half-width scaffolding plates reach the top of the front carry conveyor, the two rows of half-width scaffolding plates are transferred to the lower part of the depalletizer, and the depalletizers are moved from the half-width scaffolding plates stacked in two rows to The two half-width scaffolding plates are sandwiched and transferred to the scouring machine, and the two half-width scaffolding plates are scoured simultaneously.
[0010]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
FIG. 1 is an overall plan view of the scouring apparatus. In the figure, reference numeral 1 denotes a scouring machine that removes deposits adhering to the surface of a scaffolding plate as temporary equipment. The abrading machine 1 is configured to rotate the rotating shaft or steel brush with a large number of chains and steel rings attached thereto, so that the surface of the scaffolding plate is impacted or rubbed to remove deposits. Therefore, a model corresponding to the type of deposit is appropriately adopted.
[0012]
An infeed conveyor 2 composed of a roller conveyor for moving the scaffold plate in the longitudinal direction is disposed on the infeed side of the scourer 1.
[0013]
The infeed conveyor 2 is provided with a carry-in conveyor 3 for carrying a scaffold plate in a direction orthogonal to the feed conveyor 2. The carry-in conveyor 3 is composed of three chain conveyors 3a, 3b, and 3c, and the conveyance speed control device 4 controls the conveyance speed of each of the chain conveyors 3a, 3b, and 3c. It is possible to separate it several times. In addition, at the time of carrying in a scaffold board, it mounts so that a scaffold board may lie on the carrying-in conveyor 3, and it is made to convey in the transversal direction of a scaffold board.
[0014]
A depalletizer 5, which is a transfer device that sandwiches and transfers both ends of the scaffold plate, is disposed between the carry-in conveyor 3 and the polishing machine 1. The depalletizer 5 is provided with a gantry 6 so as to straddle the carry-in conveyor 3 along the carry-in conveyor 3, and a traveling rail 7 is laid along the longitudinal direction of the gantry 6 at the top of the gantry 6. A rack gear 8 is disposed along the rail 7.
[0015]
As shown in FIG. 3, a traveling body 9 that travels 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 further mounted on the traveling motor 10. The pinion gear 11 is meshed with the rack gear 8 and the traveling body 9 is caused to travel by driving the traveling motor 10.
[0016]
A support plate 12 is suspended in the vicinity of the central portion of the traveling body 9, and a pair of slide shafts 14 that are guided by a guide member 13 and slide in the vertical direction are disposed on the support plate 12. A lifting beam 16 that moves up and down by the operation of the cylinder 15 is attached to a lower end portion of 14 in a direction orthogonal to the traveling direction of the traveling body 9.
[0017]
The elevating beam 16 is a beam slightly longer than the scaffold plate, and a scaffold plate sandwiching body 17 is disposed at both ends thereof. In the scaffolding plate sandwiching body 17, a guide shaft 18 is disposed along the elevating beam 16, and a sliding plate 20 is attached to a guide member 19 that slides along the guide shaft 18. Then, each sliding plate 20 is attached to the movable part of the rodless cylinder 21 so that the sliding plates 20 arranged on both sides of the elevating beam 16 can be moved closer to and away from each other by driving the rodless cylinder 21. Yes. Further, each sliding plate 20 is connected to both ends of a chain 23 wound around a sprocket 22 disposed at one end of the elevating beam 16, and the sliding plate 20 approaches and separates by driving the rodless cylinder 21. When operating, the movement of the sliding plate 20 is synchronized with the chain 23.
[0018]
A support arm 24 is suspended from each of the sliding plates 20, and a sleeve material 25 is projected from the lower end of the support arm 24 toward the inside. A swivel shaft 26 is rotatably fitted in the sleeve material 25, and a scaffold plate clamping tool 27 for holding the short side portion of the scaffold plate is fixed to an inner end portion of the swivel shaft 26, and the swivel shaft A sprocket 28 is attached to the other end of 26. A rotor rear actuator 29 is disposed above the sleeve material 25 of the support arm 24, and the sprocket 30 attached to the rotor rear actuator 29 and the sprocket 28 are connected by a chain 31, and the scaffold is driven by the rotor rear actuator 29. The plate clamping tool 27 is turned.
[0019]
Then, as shown in FIG. 5, the two side plates of the half-width scaffolding plate are clamped from both sides by two pairs of front and rear scaffolding plate clamps 27 so that the two scaffolding plates can be held and transferred in parallel. In addition, when one standard scaffolding plate is sandwiched, only one of the two pairs of scaffolding plate clamping tools 27 is used.
[0020]
Further, as shown in FIG. 5, a front / back discrimination sensor 32 for discriminating the front / back side of the scaffolding plate is attached to one end side of the support arm 24. As a method for discriminating the front and back of the scaffold plate, the direction of the locking metal fittings attached to both ends of the scaffold plate, the orientation of the scaffold plate main body, and the like are detected and discriminated from the difference in the shape of the front and back.
[0021]
In addition, a lifter 33 is provided in front of the front end of the carry-in conveyor 3 to easily hold the scaffold plate when the carried-in scaffold plate is temporarily received and transferred to the polishing machine 1 by the depalletizer 5. .
[0022]
The infeed conveyor 2 is provided with a scaffold plate receiving device 34 for receiving a scaffold plate transferred to the infeed conveyor 2 by the depalletizer 5, and is moved up and down along the column 37 via the chain 36 by the operation of the cylinder 35. The scaffold plate is received by the freely arranged lifting arm 38 and transferred onto the feed conveyor 2.
[0023]
A discharge conveyor 39 for discharging the scaffolding plate from the polishing machine 1 is disposed on the discharge side of the polishing machine 1, and the discharge conveyor 39 also employs a roller conveyor.
[0024]
An end of the discharge conveyor 39 is provided with a carry-out conveyor 40 for carrying out the scaffolding plate in a direction orthogonal to the discharge conveyor 39, and the discharge conveyor 39 is connected to the carry-out conveyor 40 from the discharge conveyor 39 to the carry-out conveyor. A palletizer 41 for stacking a predetermined number of sheets is disposed in order to transfer the scaffold plates to the scaffold plate stacking station 40 and pack them.
[0025]
Further, at the end of the discharge conveyor 39, a scaffold plate positioning device 42 for aligning the scaffold plate discharged from the scourer 1 at a predetermined position and a floating device 43 for floating the scaffold plate are disposed. Further, a reversing device for reversing the scaffolding plate may be disposed at this position.
[0026]
Accordingly, when the half width scaffolding plate M is subjected to the polishing process two by two with the scaffolding plate scouring device of the present invention, it is positioned at the last stage of the carry-in conveyor 3 disposed in front of the scourer 1 as shown in FIG. The half-width scaffolding plate M, which is stacked and packed in a predetermined number from the site, is returned to the chain conveyor 3c. At this time, the half-width scaffolding plate M to be placed may be placed for each row or a plurality of rows may be placed at a time.
[0027]
And the steel tape for packing is cut off, the conveyance speed control apparatus 4 of the carrying-in conveyor 3 is operated, and the chain conveyor 3c is driven first. When a sensor (not shown) detects that the first half of the half-width scaffolding plate M on the chain conveyor 3c, that is, the leading half-width scaffolding plate M has reached the tip of the chain conveyor 3c, as shown in FIG. Then, driving of the front chain conveyor 3b is started, and the long scaffold plate M in the first row on the chain conveyor 3c is transferred to the chain conveyor 3b side.
[0028]
When the first half-width scaffolding plate M is transferred to the chain conveyor 3b, the driving of the chain conveyor 3b is stopped, and the next half-width scaffolding plate M waits for the end of the chain conveyor 3c to arrive. When the sensor detects that the next row of half-width scaffolding plates M has reached the tip of the chain conveyor 3c, as shown in FIG. 8, the chain conveyor 3b is driven again to attach the next half-width scaffolding plate M to the chain conveyor 3b. The two rows of half-width scaffolding boards are aligned so that they are transferred to the side and overlapped with the row of half-width scaffolding boards that were transferred first. At this time, when the next half-width scaffolding plate M is placed on the chain conveyor 3c, the driving of the chain conveyor 3c is once stopped and the movement of the half-width scaffolding plate M on the chain conveyor 3c is stopped.
[0029]
Thus, when two rows of half-width scaffolding plates M are arranged on the chain conveyor 3b, the chain conveyor 3b is continuously driven, and the half-width scaffolding plate M on the chain conveyor 3b is conveyed to the tip of the chain conveyor 3b. At this time, when the next half-width scaffolding plate M is placed on the chain conveyor 3c, the driving of the chain conveyor 3c is once stopped to stop the movement of the half-width scaffolding plate M on the chain conveyor 3c.
[0030]
When the sensor detects that the half-width scaffolding plate M on the chain conveyor 3b has reached the tip of the chain conveyor 3b, the front chain conveyor 3a is driven to chain the two rows of half-width scaffolding plates M on the chain conveyor 3b. Transfer to the conveyor 3a.
[0031]
When the two rows of half-width scaffolding plates M on the chain conveyor 3b are transferred to the chain conveyor 3a, the chain conveyor 3b is empty as shown in FIG. 9, and the two rows of half-width scaffolding plates M on the chain conveyor 3a and the chain The distance from the half-width scaffolding plate M on the conveyor 3c is at least the length of the chain conveyor 3b.
[0032]
The two rows of half-width scaffolding plates M on the chain conveyor 3a are moved further forward and transferred to the lifter 33. By repeating such an operation, the two rows of half-width scaffolding plates M are sequentially fed into the lifter 33.
[0033]
The depalletizer 5 having the scaffolding plate sandwiching body 17 stands by above the lifter 33, and the scaffolding plate sandwiching body 17 descends and the two uppermost two half-width scaffolding plates M on the lifter 33 are placed. The half-width scaffolding plate M is sandwiched and lifted by the two pairs of scaffold sandwiching tools 27 and simultaneously moves toward the feeding conveyor 2.
[0034]
At this time, when it is necessary to reverse the front and back of the half-width scaffold plate M, the rotary actuator 29 is operated to reverse 180 degrees.
[0035]
The scaffolding plate sandwiching body 17 that has reached the infeed conveyor 2 descends and transfers the two half-width scaffolding plates M that are sandwiched on the lifting arm 38 of the scaffolding plate receiving device 34 that waits in the lower position. When the elevating arm 38 is lowered, the two half-width scaffold plates M carried on the elevating arm 38 are transferred to the feed conveyor 2 side, and the two half-width scaffold plates M are simultaneously fed into the scourer 1.
[0036]
Deposits are removed by the abrading machine 1, and two half-width scaffolding plates M are ejected from the abrading machine 1 onto the discharging conveyor 39, and when reaching the end of the discharging conveyor 39, the scaffolding plate positioning device 42 moves the discharging conveyor. It is pushed to one side and aligned, and further lifted by the levitation device 43 and waited at a predetermined position. If it is necessary to reverse the front and back when the reversing device is provided, the reversing device is reversed 180 degrees.
[0037]
When lifted by the levitating device 43 and waiting, the scaffolding plate sandwiching body 17 of the palletizer 41 descends from above and sandwiches two half-width scaffolding plates M at the same time onto the scaffolding plate stacking station on the carry-out conveyor 40. Transport and stack sequentially. When the stacked half-width scaffolding plates M reach a predetermined number, they are packed on the carry-out conveyor 40 with steel tape and carried to a storage location.
[0038]
Thus, the half-width scaffolding plates M are aligned in every two rows by the speed control of the carry-in conveyor 3 in which the three chain conveyors 3a, 3b, 3c are connected in series, and at the same time, the distance from the subsequent half-width scaffolding plate M is appropriately set. Further, the two half-width scaffold plates M can be sandwiched simultaneously by the two pairs of scaffold-plate sandwiching tools 27 of the scaffold-plate sandwiching body 17 of the depalletizer 5 and fed into the scourer 1.
[0039]
Further, when the standard scaffolding plate is subjected to the polishing process, the scaffolding plates are aligned one by one by the carry-in conveyor 3 in the same manner as described above, and one of the two pairs of scaffolding plate holding tools 27 of the scaffolding plate holding body 17 of the depalletizer 5 is used. Only the upper scaffolding plate is sandwiched by using only the substrate and sent one by one to the scouring machine 1 for scouring. The carry-out by the palletizer 41 is also performed using only one of the two pairs of scaffolding plate clamping tools 27 of the scaffolding plate clamping body 17.
[0040]
【The invention's effect】
As described above, in the scaffold plate scouring apparatus of the present invention, a plurality of carry-in conveyors are connected in series in front of the feed conveyor that supplies the scaffold plate to the scourer, and the carry-in conveyor is conveyed. It is equipped with a transport speed control device that controls the speed and separates the scaffold plates on the carry-in conveyor by a predetermined number of rows, and also holds the separated rows of scaffold plates on the carry-in conveyor sequentially from the upper stage on the feed conveyor. Since the depalletizer to be transferred is arranged, the scaffolding plates are aligned in a predetermined number of rows on the carry-in conveyor, and the depalletizer sequentially feeds to the abrading machine. A single plate can be automatically supplied to the scouring machine to improve the scouring capacity.
[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 along line AA in FIG.
FIG. 3 is an enlarged view taken along line BB in FIG. 2;
4 is an enlarged view taken along line CC in FIG. 1. FIG.
FIG. 5 is a perspective view showing a state in which a half-width scaffold board is sandwiched by a scaffold board sandwiching body.
FIG. 6 is an explanatory view showing a state in which a half-width scaffold board is conveyed by a carry-in conveyor.
FIG. 7 is an explanatory view showing a state in which a half-width scaffold board is conveyed by a carry-in conveyor.
FIG. 8 is an explanatory view showing a state in which a half-width scaffold board is conveyed by a carry-in conveyor.
FIG. 9 is an explanatory view showing a state in which a half-width scaffold board is conveyed by a carry-in conveyor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Abrasive machine 3 ... Carry-in conveyor 3a, 3b, 3c ... Chain conveyor 4 ... Conveyance speed control device 5 ... Depalletizer 17 ... Scaffolding board clamping body

Claims (1)

A plurality of carry-in conveyors are connected in series in front of the feed conveyor that supplies the scaffold plates to the scouring machine, and the scaffold plates on the carry-in conveyors are controlled in a predetermined number of rows by controlling the transport speed of the carry-in conveyors. A scaffold plate laboratory comprising a transport speed control device for separating and a depalletizer for sequentially sandwiching a predetermined number of separated scaffold plates on the carry-in conveyor from the upper stage and transferring them onto the feed conveyor. Sweeper.

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