JPS60108274A - Blasting device of suctional self-running type - Google Patents

Abstract

PURPOSE:To allow the device to work with its attracting function stabilized at all times despite changing suction force by locating the top of a suction cup seal innermore than the external edge of a ring plate, and thereby securing the inner and outer ends of the suction cup seal fast to said ring plate. CONSTITUTION:Inside a cup frame 4 is given a negative pressure by the suction force applied to a collection pipe, and a suction cup seal 3 is pressed to the surface to be blasted 26. Because here the top 3a of the suction cup seal 3 is located innermore than the external edge 32a of a ring plate 32 furnished at the periphery of said cup frame 4, the inner 3c and outer 3b ends can be fixed to the ring plate side, so that any change in the suction force will not lead easily to collapse of the contact mode to ensure that a stable attracting effect is expected always. In this condition, the blast material is cast from a blasting nozzle into a cup frame 4 to run against the surface to be blasted 26. Thus the intended blasting will be well done.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suction self-propelled abrasive material projecting device for cleaning the outer panel of a ship, for example, before painting the outer panel.

Traditionally, ship exterior panels have been polished by hand while the ship is floating at sea or docked.
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``}Fu-LA; The work is hard and dangerous for the contractor.Therefore, recently we have adopted a suction self-propelled @thin material projection device, and this 4i1f thin material projection device is moved by suction on the outer plate surface. While projecting abrasive material (blast), Gf aM
A method is provided in which the outer plate surface is polished by the collision force of the materials, the abrasive material is collected together with the removed material generated by the polishing, the removed material is separated, and the abrasive material is reused. . That is, such a conventional abrasive material projection device is composed of a self-propelled cart, a cup frame attached to the self-propelled cart and having a suction cup seal on the outer periphery, and a projection nozzle and a collection pipe attached to the cup frame. By applying a suction force to the collection pipe, a suction force is applied and the removed material and the abrasive material are collected. By the way, the conventional suction cup seal has a skirt shape, and its inner end is fixed to the outer circumference of the end of the cup frame.

Therefore, the top part that comes into contact with the object to be polished is located outward from the end of the cup frame, and is cantilevered through the inner end, making it easy to follow fluctuations in suction force and uneven surfaces during travel. The contact form easily collapses due to deformation, etc., and a stable adsorption effect cannot be expected.

An object of the present invention is to provide a suction self-propelled abrasive material projection device that can always be expected to have a stable suction effect.

In order to achieve the above object, the self-propelled suction type abrasive material projection device of the present invention includes a self-propelled cart, a cup frame attached to the self-propelled cart and having a suction cup seal on the outer periphery.
This cup frame is composed of a projection nozzle and a collection pipe, and the cup frame has a ring plate extending outward on the outer periphery of the end, and a suction cup seal having a bowl-shaped cross section and an annular shape is attached to this ring plate. , the top of which is positioned inside the outer edge of the ring plate.

According to the configuration of the present invention, the following effects can be expected. In other words, since the top of the suction cup seal is located inside the outer edge of the ring plate, the inner and outer peripheral edges of the suction cup seal can be fixed to the ring plate, and therefore the contact form is easily disrupted due to fluctuations in suction force, etc. Therefore, stable adsorption can be expected at all times.

An embodiment of the present invention will be described below based on the drawings.

In Figures 1 and 2, (1) is a suction self-propelled polishing machine.
The ilI+ projection device includes a self-propelled cart (2), a cup frame (4) that can be attached to the self-propelled cart (2) and has a suction cup seal (3) on the outer periphery, and this cup frame (4).
It consists of a projection nozzle (5), a collection pipe (6), and a breaker (7) attached to the pipe. (8) is a traveling type 5
(The auxiliary material supply device includes a traveling cart (9), a storage tank 4 that can be replenished with abrasive material, and a pipe (b) to this storage tank u1).
A cyclone (
141. (g) is a traveling type vacuum device, which is composed of a traveling trolley Q, a bag filter, and a broth device Q which communicates with this Nomag filter 9'f) via piping (g). (7) is a compressed air supply device, which consists of a compressor, etc. The projection nozzle (5) and the abrasive material tank (2) are connected by a grit nozzle (Lube υ is the abrasive material hose) provided at the bottom of the abrasive material tank (2),
The recovery pipe (6) and the storage tank (10 are connected to the suction hose). Further, the cyclone u4 and the bag filter Oη are connected by a suction hose (2), and the air supply hose (from the compressed air supply device (4)) is connected to the grid pulser (2) and the abrasive tank (2). ing.

According to the polishing equipment configured as described above, the suction power of the blower device (9) is generated by the suction power of the blower device (9),
C), Cyclone α, piping (to), abrasive tank (1)
, piping (B), and the storage Kunku U11 suction hose (to), it acts within the cup frame (4) to create suction force on the abrasive material projection device (υ), and at that time, the breaker (
By adjusting the amount of external air taken into the C-cup frame (4) through the operation in step 7), the self-propelled suction of the abrasive material projection device (1 liter) on the surface to be polished, such as the outer panel of a ship, is made possible. , is carried out smoothly with optimal adsorption force. During this adsorption self-propulsion, the compressed air from the compressed air supply device 4 is supplied to the grid valve C'tl and the abrasive material tank (2) via the air supply hose), and is supplied to the abrasive material tank (2). is pressurized to move the abrasive material to the grid valve e]) side, and at the same time transport it in the grid valve Qυ's 0 [auxiliary material to the abrasive material hose], connect it to the projection nozzle (5 lines), and then project it. From the nozzle (5) to the cup frame (4) of the surface wheel to be polished.
) is used for the desired cleaning by projecting it onto the area surrounded by.

Is there in the cup frame (4) by such abrasion? ILF material and removed material are collected from the collection paste (6) to the suction hose by the suction force described above, and some of the abrasive material is collected while flowing through the storage tank 01 and the abrasive material tank (2). are separated. Then, all the remaining abrasive material is separated by the cyclone α♦, making it possible to separate and reuse the abrasive material. The removed material that has passed through the cyclone o4 enters the bag filter α via the suction hose (c) and is collected (collected) by the bag filter α. The ω-th symmetrical point Id is changed by the adsorption and self-propelling of the abrasive material projection device +1), and if necessary, the auxiliary material supply device (8) and the vacuum device αe are moved accordingly, so that each The length of the hose (2) (c) can be made the shortest length.

Details of the IjF thin material projection device +1) are shown in Figures 3 to 8.
The following is based on IN. The self-propelled trolley (2) has a pair of left and right wheels (27AX27B) distributed in the front and rear, respectively,
These wheels (278 and 27B) are connected to motors (28A) (2813) capable of forward and reverse drive, respectively (29A).
) (2913). Therefore, the self-propelled trolley (2) performs rJl 3w, backward movement, left and right turns, etc. by driving the M motors C28A and C28B in the same forward and reverse directions or in mutually opposite directions.

The truncated cone-shaped cup frame (4) is attached to the self-propelled truck (2) via a level adjustment mechanism (g), and a gasket 00 is pasted on its inner surface. The cup frame (4) integrally has an outward ring plate (2) on the outer periphery of the end, and the suction cup seal (3), which has a bowl-shaped cross section and an annular shape, is attached to the ring plate <q, and the top part (8a) ) is mounted so as to be positioned inward from the outer edge (82a) of the ring plate. That is, the outer end (8b) of the suction cup seal (3) is fixed to the annular plate facing up from the outer edge (aZa) of the ring plate via a plurality of fixing bolts and nuts.
Part (8C) is attached to the binder) and fixed to the ring plate (3) via multiple fixtures (1).The seal (B) integrally formed with the suction cup seal (3) )
It is attached to the bottom of the remaining part. In addition, there are a plurality of openings (to) in the ring plate opposite to the recess of the suction cup seal (3).
is formed. The projection nozzle (5) is swingably mounted on the top of the cup frame (4). That is, the top of the cup frame (4) has an annular flange e1.
is fixed to this annular flange), and an annular flange base (b) is attached to this annular flange through a packing action. A pair of support pieces protrudes from this flange base, and a pair of rod ends attached to the rocking base plate ring are swingably connected to the support piece wheel via a shaft. . The projection nozzle can swing freely around the axis of the projection nozzle. Note that the projection nozzle (5) has a nozzle sill θ force, a nozzle seal (g), and the like. (G) is a swinging drive device that swings the projection nozzle (6), with a motor attached to the cup frame (4), a crank attached to its output shaft III,
It consists of a rod whose one end is connected to the crank pin and whose other end is connected to the protrusion from the swing base plate via a pin. The recovery pipes (6) are provided at two locations displaced by 90 degrees. This is the abrasive material projection device f1)
Is the lower collection 1j (Ll) used when making the machine run vertically and horizontally, and the collection that is not used? ? (6) is attached with n francs η. The breaker (7) has a cylindrical body 1:9, a side part of this H, ti body, and a 110 cup frame (4).
A flange elbow that communicates and connects the cylindrical body ψ, a lid plate that is several times in the upper part of the barrel, and a lower part of the cylindrical body, ″11
a bottom plate 4 which is attached to and has an intake hole in the center;
This bottom plate (valve plate ← 1 ~ on which the gasket (6 A presser plate ■ attached to the valve plate, a spring plate η interposed between the presser plate and the valve plate, and a pair of spring retainers (i'll
It is formed from 1 lil.

The figure shows a vacuum switch, (71) a guide rod, and (i) a guide body.

According to the Df thin material projection casket (υ) of the above configuration, the collection pipe (
The cup frame (4) circle is made to have a negative pressure by the suction force acting on the cup frame (4), and the suction cup seal (3) is pressed against the technical cleaning surface, so that the whole becomes suction-like. By doing so, it is possible to self-propel in an adsorbed state in any direction, such as forward, backward, and turning left and right. At that time, when the cup frame (4) becomes negative pressure above the set pressure, the valve plate in the breaker (7) moves against the spring (@), and this causes the intake hole and the flange elbow to move. Outside air enters the cup frame (4) through the field, etc., and the set pressure in the cup frame (4) is thereby maintained.

Further, the set pressure can be arbitrarily set by moving the presser plate by operating the position adjustment mechanism 1 (to) and changing the elastic force of the spring force. ] The suction self-propulsion is carried out smoothly and reliably by the optimal suction force.The bifurcation seal (3) is deformed by pressure due to the suction as described above, and it also adheres to the unevenness of the surface (g) of the target if7.'ii. It deforms accordingly.Here, use the suction cup seal (3
), the top part (3a) is located inward than the outer ring plate d (82a), and the outer part (ab) and the inner part (8c
) and are respectively fixed to the ring plate on the ) side, so
The contact (pressure contact) form does not easily collapse due to fluctuations in suction force, and always maintains a stable adsorption action.10+4:
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An abrasive material is projected onto the beam (4), and this abrasive material is applied to the surface to be polished (
Collision with e) and perform the desired @ sweep. The abrasive material and the removed material are then removed by suction through the collection pipe (6).

At this time, the motor is driven, and the rod ■ is pushed and pulled through the crankshaft, which causes the swinging base plate to move around the axis (
44 around). Then, since the projection nozzle (5) integrated with the swing base plate swings, the projection area (sweeping area) of the abrasive material from the projection nozzle (5) is widened within the cup frame (4). obtain. As a result, it is possible to widen the cleaning range per stop and stop, which means that the number of rotations between running and stopping can be increased by 27
We will gain a little more than 1°C.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a schematic diagram of the polishing equipment (fi 1 side view, r 132 is a schematic plan view of the same, Fig. 8
Figures 8 to 8 show the abrasive material projection device, 8th r,'u is a front view, 4th figure is a plane r'; Front view of the section, f (Fig. 57 is the same part (
The cutaway side view and FIG. 8 are longitudinal sectional views of the force section of the bulge 1/-. +1)... Abrasive material hose D # L2)... Self-propelled trolley, (3)... Suction cup seal, (aa)... Top,
(8b)...outer end, (aC)...inner end,
(4)...Cup frame, (5)...Projection nozzle, (6)...Recovery pipe, (7)...Breaker, (8)
...Abrasive material projection device section, (to)...Vacuum device, 4..Compressed air supply device, @...Abrasive material hose,
@...Suction hose, ■...Ring plate, (J
12a)...ring plate outer edge, OI...annular plate, cA
...fixing device)...fixed co-agent Yoshihiro Morimoto Figure 7 21j

Claims (1)

[Claims] 1. A self-propelled dolly, a cup frame attached to the self-propelled dolly and having a suction seal on the outer periphery, a projection nozzle attached to this cup frame, and a retrieval unit. A suction self-propelled type characterized in that it has a ring plate extending to the side, and a suction cup seal having a bowl-shaped cross section and an annular shape is attached to the ring plate with its top positioned inside the outer edge of the ring plate. 1 abrasive material projection device.