JP3401353B2 - Shot blasting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] [Industrial applications]The present inventionIs a concrete molded product
Shot blasting equipment for blasting the surface
It is about. [0002] 2. Description of the Related Art For example, in civil engineering work such as construction of a large-scale residential land.
In this case, retaining wall construction is indispensable.
From the viewpoint of easiness, etc., concrete
There is a tendency that the method of laying
You. In this case, the retaining wall block has a function.
If you are satisfied with the strength performance even if it is in the construction state
Even if the surface is exposed to the outside and exposed to the public,
There is no question if you leave it on the exposed concrete surface
There is no title. However, in recent years, the preservation of living environment and
Civil engineering materials such as retaining wall blocks
The material is exposed to the outside in the construction state and
Add a design element to the surface exposed to
There is a need to blend into the surrounding environment. [0005] One method for responding to such demands is to use
When producing wall blocks, decorative aggregates with various shades
Manufacture of retaining wall blocks mixed in concrete
Later, the surface is blasted to make the surface
Exposing the aggregate for use to the surface of the retaining wall block
There is a method for giving a design a design. And such a holding
Blasting of concrete moldings such as wall blocks
During construction, the abrasive is rotated by a motor
Mechanical type that uses centrifugal force of impeller to project
Conventionally, a blasting machine was used. [0006] However, in general, retaining walls
Because concrete molded products such as blocks are large,
The surface to be machined is large, so the projection position of the abrasive material is moved sequentially
It is necessary to work while
When using a conventional mechanical blasting machine,
Work on the relatively large blast machine itself, including
The device needs to be moved as the
There is a problem that the structure becomes complicated and large, especially work efficiency
To install multiple blasting machines to improve
In this case, this problem was remarkable. [0007] On the other hand, is there a problem of uniform product quality?
Are able to set the degree of machining on the work surface
It needs to be as uniform as possible. Problem in such a case
What is the projection angle and projection distance of the abrasive material to the work surface
Yes, during blasting of the work surface
Be kept constant, and these are automatically maintained
It is important to make sure that
At present, effective technology has not been proposed yet. [0008]The present inventionThen, as mentioned above,
In view of the point, it is a small, lightweight and simple structure, and the work surface
A uniform processing degree can be easily achieved over the entire area
Made as providing a shot blasting device
It is a thing. [0009] [Means for Solving the Problems]The present inventionLet ’s talk about that challenge
The following configuration is adopted as specific means to solve
are doing. [0010]That is,Concrete work product W
The blasting material is projected onto the substantially planar processing surface Wc to
A shot that imparts an appropriate fraying action to the surface layer of the machined surface Wc.
In the blast device, the work W
Placed and fixed so that the surface direction of the work surface Wc is along the vertical direction
Work placement meansAAnd granular abrasive material mixed with pressurized air
Abrasive material pumping means for pneumatically feeding togetherBAnd the above abrasives
Pumping meansBWith abrasive air pumped by
Abrasive material projection nose projected onto the work surface Wc of the workpiece W
Material projection unit equipped withCAnd the above
Shooting unitCThe abrasive material projection nozzle 18 is
It always faces the processing surface Wc at a predetermined interval and
Projection unit that supports to maintain the projection direction orthogonal to
Unit support meansDAnd the above abrasive material projection unitCThe above
Up and down along the surface direction of the work surface Wc of the workpiece W
Projection unit lifting meansEAnd the above abrasive material projection unit
Cut B along the surface direction of the work surface Wc of the work W.
Projection unit traversing means for traversing in the horizontal directionFWith
And the projection unit supporting means D is
The material projecting unit C is moved to the axis of the abrasive material projecting nozzle 18.
Swingably support in the direction of inclination and
One that comes into contact with or separates from the work W by the driving force of the eta 45
A link mechanism 31 that operates so as to move forward and backward;
Advancement of the abrasive material projection unit C by the link mechanism 31
Abuts on the work surface Wc of the work W with movement
The abrasive material projecting nozzle 18 is perpendicular to the work surface Wc.
In this state, the cleaning material projecting nozzle 18 and the work surface Wc
And a guide means 33 for defining the distance between the first and second members to a predetermined size.
ConfiguredIt is characterized by: [0011] [Action and Effect of the Invention]The present inventionThen, use such a configuration
As a result, the following operation and effect can be obtained. [0012]That is, the present inventionShot blasting equipment
The work placement meansAThe surface direction of the work surface Wc
Of the workpiece W mounted and fixed so that
With respect to the processing surface Wc, the projection unit supporting means D
The abrasive material projection unit C supported by the abrasive material
The nozzle 18 always keeps a predetermined interval with respect to the processing surface Wc.
So as to maintain the projection direction facing and orthogonal to the
Arrange, and in this state abrasive material pumping meansBPumped by
The abrasive material is sprayed together with the pressurized air from the abrasive material spray nozzle 18
From the target surface Wc, and project the target surface Wc.
Blast the surface. In this case, there are two working methods.
Method can be selected. One of them is the above abrasive
The projection of abrasive material onto the work surface Wc by the
Up and down of the above-mentioned blasting material projecting unit C by the lifting / lowering means E
This is performed during driving, in which case the surface to be processed
Completed ascending and descending from top to bottom of Wc or from bottom to top
After that, the projection unit traversing means F is operated to
Shift the projected position of the abrasive material by a predetermined amount in the horizontal direction,
Thereafter, an abrasive is further injected from the abrasive spray nozzle 18.
Raise and lower the abrasive material projection unit C while shooting
By sequentially repeating the operation, the entire surface of the processing surface Wc is blocked.
Last processing is performed. The other is the opposite
In addition, the abrasive material projection nozzle 18
The above-mentioned blasting by the projection unit traversing means F
This is the case when the operation is performed during the traverse driving of the material projection unit C.
In this case, from the left end to the right end of the processing surface Wc, or
Projection unit elevating means E after traversing from right end to left end
To raise and lower the blasting position of the abrasive on the work surface.
Slip in the direction by a predetermined amount, and after that, further spray abrasive material
While the abrasive material is being projected from the nozzle 18, the abrasive material
By traversing the slot C and repeating these operations sequentially.
The blast processing is performed on the entire surface to be processed Wc.
You. Thus,The inventionShots taken
According to the last device, the abrasive material projecting unit C
Do not allow the abrasive material to be projected from the spray nozzle 18 together with the pressurized air.
Then, the abrasive material projecting unit C is moved to the work surface Wc of the work W.
Ascending or descending along the
At the end of the line, the abrasive material projection unit C was traversed or moved up and down.
To shift the projection position sequentially, so that the entire surface
Can be subjected to blast processing,
Blasting under high workability becomes possible,
Can also contribute to lower product costs. [0015] Further, from the abrasive material pressure feeding means B to the pressurized air
The abrasive material fed from the air is supplied to the abrasive material spray nozzle 18.
And presses it together with pressurized air toward the surface to be processed.
Therefore, the abrasive material pumping means B should be
A cleaning material projection unit equipped with a cleaning material projection nozzle 18
Toe C only the projection unit elevating means E and the projection unit side
What is necessary is just to drive up / down or traverse by the row means F.
For example, compared to using a conventional mechanical blasting machine
Thus, the driven portion is small and lightweight. As a result, the entire device
Size and weight, or drive means such as motors, etc.
And increase the number of abrasives 18
To improve work efficiency by expanding the projection range
It is also easy. [0016]Meanwhile, thisShot blast according to the invention
According to the device, ThrowBlasting unit support means D
The unit C is inclined with respect to the axis of the cleaning material projecting nozzle 18.
And swinging the actuator 45
Is moved forward and backward in the direction of coming and going with the workpiece W by the driving force of
A link mechanism 31 that operates to
As the abrasive material projecting unit C moves forward due to
By contacting the work surface Wc of the workpiece W,
With the injection nozzle 18 perpendicular to the surface Wc to be machined,
The distance between the sweep material projection nozzle 18 and the surface to be processed Wc is predetermined.
Since it has the guide means 33 for defining the dimensions,
By operating the link mechanism 31, the abrasive material projecting unit
When C is advanced toward the work surface Wc, the guide hand
A step 33 abuts the work surface Wc, and the abrasive
The tool 18 is made orthogonal to the work surface Wc and
The distance between the abrasive material projection nozzle 18 and the surface Wc
Specified to fixed dimensions. Therefore, the surface direction of the processing surface Wc is vertical.
If it matches the surface, of course, this is a vertical surface
Even if it is inclined to
Even if there is, the abrasive material projection nozzle 18 is always
Oriented in a direction perpendicular to the surface Wc, and
Since the distance is kept constant, the inclination of the work surface
Regardless of the presence or absence, the degree of the processing surface Wc is made uniform,
To increase the product value of ARC W and be applicable
Of various types of workpieces W
Versatility is improved. [0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A shot blasting apparatus according to the present invention will be described below.
Referring to the accompanying drawings in detail, FIG.
Overall system of the shot blasting apparatus Z according to the embodiment of the present invention
System. This shot blasting device Z
As shown in FIG. 1, a work placing means A and a polishing material pumping means B
Blasting material projection unit C, projection unit support means D
It is fixed to the projection unit elevating means E and the projection unit traversing means F.
Side masking means G and movable side masking hand
Step H, upper masking means I and lower masking means J
And a retaining wall concrete block as shown in FIG.
Blasting part of the surface with lock W as workpiece
It is a device for applying. Each structure of this shot blasting device Z
The specific structure and operation of the components will be described in detail later.
Here, first, the concrete wall
The structure of the lock W will be described with reference to FIG. Structure of retaining wall concrete block W The retaining wall concrete block W is substantially as shown in FIG.
It has a bottom wall Wa and a front wall Wb extending in an orthogonal state.
The front wall portion Wb has a substantially L-shaped cross-sectional shape.
At the bottom, a parting groove Wf extending in the width direction is provided.
Two drain holes Wg and W on the left and right are located above the kerf Wf.
g are formed respectively. This retaining wall concrete
In the construction state, the block W is the front wall portion Wb.
Of the surface Wc of FIG.
Is exposed to the outside as the outer surface of the retaining wall.
The shot blasting device Z described later
To give the required design to this
To increase the value. Therefore, this retaining wall concrete
In the manufacturing process of the block W,
Various shades on the surface layer near the surface Wc of the front wall Wb
Blending with cosmetic aggregates with the surface Wc
To remove the mortar layer on the surface Wc appropriately.
To make the above-mentioned cosmetic aggregates moderately exposed.
(Refer to the portion "after blasting" in FIG. 1). Outline of blasting method For the sake of explanation of the shot blasting device Z described later,
Blasting on the surface Wc of the wall concrete block W
The processing method is briefly described in this embodiment.
In the three retaining wall concrete blocks W once
Is configured to blast
First, as shown in 7, three retaining wall concrete blocks
W, W, W are widthwise with their side faces Wd abutted against each other.
And each retaining wall concrete block W, W, W
So that the surfaces Wc, Wc, Wc of
You. In this state, the retaining wall concrete located at both ends in the juxtaposition direction
Vertical direction of the outer side surfaces Wd, Wd of the heat block W, W
Fixed side masking described later over the entire length
Rubber material 90 of means G and movable side masking means H
And the surface of the rubber material 90 is the retaining wall.
It will be flush with the surface Wc of the concrete block W
They are arranged in close contact with each other. In addition, each retaining wall concrete
On the upper surface We side of the heat block W, an abrasive material
Upper maskin, which will be described later, that runs integrally with the projection unit C
Rubber material 93 of the
Close so that it is flush with the surface Wc of the reed block W.
To put on. In addition, each of the above retaining wall concrete blocks
In the parting groove Wf portion of W, as described later,
Lower masking means to be described later, which runs integrally with the knit C
J rubber material 106, the surface of which
So that the upper edge portion is flush with the surface Wc.
Closely arranged. In this state, the abrasive material projecting unit C described later
Is in contact with the surface Wc of the retaining wall concrete block W.
And pressurized with the pressurized air
The abrasive material to be used is two abrasive material projection nozzles 18,
18 and projected onto the surface Wc, respectively,
Blast processing is applied to the layer part. The projection of this abrasive material
Crushed concrete debris and dust and projected
The cleaned material is sucked and discharged through the vacuum hose 8.
You. In this case, the abrasive material projecting unit C is projected in FIG.
Vertical movement and horizontal movement as shown by unit movement trajectory L
Key-shaped zigzag shape by repeating alternately to the direction
And the abrasive material projecting unit C
Of the blasting material spray nozzles 18
You. This allows the abrasive material projection unit C to move in the vertical direction.
Along the width of the reciprocating motion of each of the above abrasives 18
To the surface Wc in the range corresponding to
Blast processing is performed. The upper and lower ends of the front wall Wb are ground.
The traversing operation of the cleaning material projection unit C is performed at both upper and lower ends.
To prevent chipping and excessive chipping,
From the viewpoint of maintaining the suction action of
C to the rubber material 93 and the rubber material 106, respectively.
It is performed in a state where it is made to correspond. In the same manner,
A blind plug is attached to the drain hole Wg. Further, in this embodiment,
Each retaining wall concrete block W to the bottom wall Wa.
Blasting by placing on the side
However, how to place this retaining wall concrete block W
However, the present invention is not limited to this.
It can also be placed with the side surface Wd of the
This mounting method is used for retaining wall
Corresponding to various conditions such as size and shape of concrete block W
Can be selected as appropriate. Structure and operation of shot blasting device Z Hereinafter, as described above, the retaining wall concrete block
Shot blasting for blasting the surface Wc of W
The specific configuration of the strike device Z will be described in detail. The above shot blasting device Z has a
Work placement means A, abrasive material pumping means B and abrasive material projection unit
Knit C, projection unit support means D, and elevation of the projection unit
Means E, projection unit traversing means F and fixed side mask
Means G, movable side masking means H and upper mass
King means I and lower masking means J
Have been. Below, each of these components is individually
The specific structure and the like will be described separately. Work placement means A The work mounting means A is a three-wall retaining wall concrete to be machined.
The loading block W is placed at each predetermined processing position
For fixing, as shown in FIGS. 1 and 2
A plurality of girder members 81, 81,
.. and each of these girder members 81, 81,.
Table 3 shows three retaining wall concrete blocks W, W, W
The surfaces Wc are placed in a line so as to form the same plane.
It is. In this case, at the front end of each of the beam members 81, 81,.
Although not shown, a reference plate is attached to each,
Each of the above retaining wall concrete blocks W, W, W
By bringing the lower end of the front wall portion Wb into contact with this reference plate,
Positioning in the work loading direction is performed. In addition, each of these retaining wall concrete blocks
Positioning of W, W, W in the width direction is performed on a fixed side
Side masking means for masking means G and movable side masking hand
This is done by the sides of the step H respectively. This fixed side size
Of the masking means G and the movable side masking means H
The details of the structure will be described later.
Configuration relating to positioning of concrete block W in the width direction
If only the fixed side mask
The loading means G is located at one end in the width direction of the work placement means A.
It is fixed and its inner side functions as a positioning surface
I do. The movable side masking means H is
Move to left and right to the other end in the width direction of the work placement means A
And the inside surface is used as a positioning surface.
Works. Accordingly, each retaining wall to the work mounting means A is provided.
When placing concrete blocks W, W, W
First, move the movable side masking means H outside the width direction.
To the movable side masking means H
The distance between the fixed side masking means G and the three retaining walls
Larger than the total width of the concrete blocks W, W, W
deep. And the first retaining wall concrete block W
Using a forklift, overhead crane, etc.
And the lower end of the front wall Wb is connected to the reference plate.
To the fixed side.
Abut on the inner side surface of the masking means G and
Place the above workpiece with both widthwise positioning
Place on the means A. Next, the second retaining wall concrete block
The lock W is carried in, and the lower end of the front wall portion Wb is connected to the reference plate.
To the side of the first retaining wall concrete block W
Positioning in two directions is performed by abutting against the surface Wd.
Place it. Last retaining wall concrete block W
Place it in the same way as the th retaining wall concrete block W
You. Then, move the movable side masking means H to the width.
3rd retaining wall concrete block
And fixed in a state of contact with the side surface Wd of the ridge W. Above,
Each retaining wall concrete block for the work mounting means A
The work of placing and fixing the racks W, W, W is completed. Abrasive material pumping means B As shown in FIG. 1, the blasting material pumping means B includes a compressor.
-1, air dryer 2, blast machine 3 and elevator 4
And a cleaning material sorting and collecting machine 5 and a dust collection unit 6
Have been. Then, the compressor 1
The generated pressurized air is dried in the air dryer 2
After that, this is supplied to the blasting machine 3 and
Removed from the cleaning material tank (not shown)
In a state where the materials are mixed, the grinding
The cleaning material is pneumatically fed to the polishing material projection nozzle 18 described later.
To the surface Wc of the retaining wall concrete block W.
Shoot. In addition, retaining wall concrete is projected by the projection of abrasive material.
Concrete crushed from surface Wc of block W
Pieces and dust and the blasted material are vacuum hose
And collected on the abrasive material sorting and collecting machine 5 side by vacuum suction through
Collected in the polishing material sorting and collecting machine 5,
Sort and collect from concrete shards. In addition, the cleaning
The polished material collected by the material sorting and collecting machine 5 is transferred to the elevator 4
Is supplied to the abrasive material tank of the blasting machine 3 for reuse.
Is done. On the other hand, the conc.
The reed fragments and dust are sent to the dust collection unit 6 where they are
It is processed. In addition, the above-mentioned abrasive material pressure feeding hose 7 and the vacuum
The hose 8 is used to move the abrasive material projection unit C, which will be described later.
It is made of a material with moderate flexibility
You. Abrasive material projection unit C As shown in FIGS. 2 and 3, the abrasive material projection unit C
Supported by the projection unit supporting means D described above.
Moving along the surface Wc of the wall concrete block W;
This is for performing predetermined blasting on the surface Wc.
For the specific structure, refer to FIGS.
I will explain. The abrasive material projecting unit C is shown in FIGS.
As shown, a substantially rectangular housing 10 made of a steel plate is provided.
ing. This housing 10 has a vacuum chamber 11 inside.
And a lower portion 11a of the vacuum chamber 11
Is to bulge the bottom wall 10d of the housing 10 downward.
The lower part 11a is formed in a funnel shape and
One end of the vacuum hose 8 is connected. The rear wall 1 of the housing 10 facing the front-rear direction.
0a and the front wall 10b, approximately the center in the vertical direction of the rear wall 10a.
The part has a predetermined length in the horizontal direction as shown in FIG.
An elongated slot opening 12 is formed. This slot opening 1
2 has one end connected to one end of the abrasive cleaning material feeding hose 7.
The pair of cleaning material projecting nozzles 18
The ride mechanism 20 extends along the extending direction of the elongated hole opening 12.
It is mounted so that it can reciprocate. The nozzle slide mechanism 20 has a predetermined width.
With a slider 21 formed by bending a plate material into a substantially U-shape
I have. The upper end of the slider 21 has the housing 1
Brackets provided at both upper ends of the rear wall 10a.
Guide locks straddling between the
26, the width direction of the housing 10 (that is, the slot opening
12 in the direction of extension)
The lower end is a guide roller with four grooves provided here
23, 23,... At the lower end of the rear wall 10a of the housing 10
By engaging with both edges of the guide plate 22 disposed at
The body 10 is slidably supported in the width direction. The elongated hole opening of the slider 21
The sliders are located on the left and right sides of the part corresponding to No. 12.
A pair of left and right cleaning materials via a connecting rod 24 fixed to 21
The projection nozzles 18 are arranged in parallel at a predetermined interval.
And the tip of each of the cleaning material projecting nozzles 18, 18
Parts of the housing 10 through the elongated holes 12 respectively.
It is projected into the vacuum chamber 11. The above
A pair of blasting material projecting nozzles 18
Each of the cleaning material projecting nozzles 18,
18 seal cloth so as not to hinder the sliding action
13 are attached. Further, the lower position of the guide rod 26
Is straddling the pair of left and right brackets 25, 25
A rack rod 27 is attached, and the slider
On the 21 side, a pinion gear meshing with the rack rod 27 is provided.
28 is mounted via a speed reducer 29 and an air motor 30
Have been killed. Therefore, the pair of cleaning material projecting nozzles 1
The pinion gears 8 and 18 are driven by the air motor 30.
The slider 21 is rotated to rotate the slider 21 to the width of the housing 10.
Slide in the direction
It is. Then, the rotation of the air motor 30 is, for example,
The guide rod 26 is disposed on each of the left and right ends.
Limit switch that is turned ON / OFF by the slider 21
Switch (not shown)
A pair of blasting material projecting nozzles 18, 18 are integrally
So that it can be reciprocated continuously within the range of Troke S
It has become. Here, the pair of abrasives for projecting abrasives are used here.
Air as driving means for reciprocating the
Although the motor 30 is adopted, this driving means is limited
It is not specified, for example, this is rodless syringe
Needless to say, it can be replaced with another driving means such as a damper. On the other hand, the length of the front wall 10b of the housing 10
A rectangle having a predetermined size is provided at a position facing the hole opening 12.
Projection opening 14 is formed, and the projection opening 1 is formed.
Outside the projection opening 14 around the projection opening 14.
Brush 15 is attached. And the above pair
Radiating from the blasting material projection nozzles 18, 18
The abrasive material projected from the dashed line is shown in dashed lines in FIGS.
Thus, the air is blown forward through the projection opening 14. Further, on the ceiling wall 10c of the housing 10,
Has a large number of secondary air introduction holes 17, 17,.
Is formed. Projection unit supporting means D The projection unit supporting means D is provided with the above-mentioned abrasive material projection unit C.
Is supported on the projection unit lifting / lowering means E side described later.
In both cases, the abrasive material projecting unit C may be replaced with the retaining wall if necessary.
For contacting and separating from the surface Wc of the concrete block W
As shown in FIG. 2 and FIG.
An attached bracket 32 and a link mechanism 31 are provided. The mounting bracket 32 is formed by forming a band plate into a rectangular frame.
In the abrasive material projection unit C.
The upper half of the top of the housing 10
Ceiling wall 10c and left and right side walls 10e, 10e.
And the lower half thereof is attached to the bottom wall 10 d of the housing 10.
Extended far below, and its leading edge
Coincides with the front wall 10b of the housing 10 (see FIG. 4).
It is attached like this. This mounting bracket 32
A pair of left and right upper guide rollers 33, 33
However, on the lower surface side, a pair of left and right lower guide rollers 3 is provided.
4, 34 are attached respectively. Each of these
The id rollers 33 and 34 are guides in the claims.
Means that both change the rolling direction
Consists of caster-type rollers
You. The housing 10 of each of the guide rollers 33 and 34
The mounting position with respect to the front-rear direction is as shown in FIGS.
The upper guide rollers 33, 33 and the lower guide
The rollers 34, 34 are respectively the above retaining wall concrete
The above-mentioned housing in a state in which it comes into contact with the surface Wc of the block W
The front wall 10b has a predetermined distance from the front surface Wc.
And the brush 15 bends appropriately.
It is set at a position where it can be pressed against the surface Wc
I have. The link mechanism 31 includes a first link bar 37.
And a second link bar 38 and a third link bar 39.
Have been. The first link bar 37 is located at the intermediate position.
Forward from a lifting table 51 of a projection unit lifting means E described later
The first pivot pin 4 with respect to the extended upper support 35.
0 so that it can be swung up and down.
One of the swing ends is an air filter arranged on the lift table 51 side.
Linda 45 is connected, and the other swinging end is
The attachment fixed to the front end of the housing 10 of the projection unit C
One end of the third link bar 39 is located at an intermediate position of the bracket 32.
And are coaxially pivoted. The second link bar 38 has one end thereof up.
The lower support 36 extending from the elevating table 51 has a third position.
While pivotally supported by a pivot pin 42, other
The end is the fourth pivot pin together with the other end of the third link bar 39.
43 pivotally supported by the lower end of the mounting bracket 32
ing. Then, the pair of upper and lower first link bars 37 and
The second link bar 38 forms a parallel link, and
The third link bar 39 connected to the end is always in a fixed shape
It is designed to hold in force. Incidentally, the housing of the above-mentioned abrasive material projection unit C
The mounting bracket 32 fixed to the body 10 is
By the second pivot pin 41, it is turned in the direction of arrow fg.
And the position of the second pivot pin 41.
Is closer to the front than the center of gravity of the abrasive material projection unit C
Position, the abrasive material projecting unit C has its own weight.
More constantly, it is rotated in the direction of arrow g around the second pivot pin 41.
Receive rolling moment. Therefore, the third link bar
The lower end of the mounting bracket 32 and the lower end of the mounting bracket 32
Stoppers 48 and 49 that can be engaged with
No external force acts on the abrasive material projection unit C.
If not, these two stoppers 48, 49
By engaging with each other, the arrow g of the abrasive material projection unit C
The maximum rotation position in the direction is regulated. Ma
In addition, the above-mentioned abrasive material projection unit C
The first link bar 37 is rotationally displaced by the expansion and contraction operation of No. 5.
As a result, it is driven forward and backward in the direction of the arrow de.
ing. Specifically, the air cylinder 45 extends.
As a result, the abrasive material projection unit C retreats in the direction of arrow d.
Away from the surface Wc of the retaining wall concrete block W
Then, as the air cylinder 45 is reduced,
The projection unit C advances in the direction of arrow e and contacts the surface Wc.
It is near. Incidentally, the projection unit supporting means D is provided as shown in FIG.
As shown in, on the left and right sides of the abrasive material projection unit C
Each is provided. Projection unit elevating means E The projection unit elevating means E is provided with the projection unit supporting means.
The abrasive material projecting unit C supported through D
Up and down with the projection unit support means D
And as shown in FIGS. 2 and 3,
A lifting column 55 erected on the traversing carriage 77 described above,
The lifting table 51 driven up and down along the lifting column 55
It is configured with. The lifting column 55 is provided with the retaining wall concrete.
Vertical with a predetermined interval in the width direction of the lock W
Left and right main columns 56, 56, and the respective main columns 56, 56
A pair of left and right assists, each of which is arranged on the rear side of the
It is composed of columns 57, 57. The lifting table 51 is located on the left of the lifting column 55.
It has a width dimension that can be interposed between a pair of right main columns 56, 56
A frame-like body that extends vertically on both left and right sides of its front end.
Front end frame members 52, 52 are provided, respectively.
You. The left and right front end frame members 52, 52
Respectively correspond to the projection unit supporting means D, D
Upper support 35 and lower support 36 are attached
Have been. The front end frame of the lift table 51
At the upper and lower ends of the members 52, 52,
Guide rollers 53, 53,
, And each of the guide rollers 53, 53,.
Rollable along the main columns 56, 56 on the corresponding side
As a result, the elevator 51 moves up and down along the
It can be moved up and down in the direction. Further, the front end frame members 52, 52
Two cable end stops 71 and 73 are provided at the upper end, respectively.
One rope end stopper 72 is attached to each of the lower ends.
Have been. And, it is located at the upper end of the front end frame member 52.
A pair of left and right chains is
68, 68 are connected at one end, respectively.
The other end of the pair of chains 68, 68 is above the elevating column 55.
A pair of left and right upper switches mounted on a rotating shaft 61 disposed at the end.
After hanging around the proket 63, 63, it goes up and down
The trolley is pulled out to the lower end side of the support column 55 and further described below.
A pair of left and right lower sprockets 64, 6 arranged on the 77 side.
After being wrapped around each of them,
They are connected to the end stops 72, 72, respectively. The pair of right and left cable end stops 73, 73
A pair of left and right chains 69, 69 connected to one end of the
The other end of a pair of left and right spurs
After being wound around the rockets 65, 65, it is pulled out downward
Connected to the counterweights 70, 70, respectively.
ing. Further, a driving pulley 62 is
The drive pulley 62 is connected to the motor 6
0, the rotation shaft 61 rotates.
The upper sprockets 63, 63
The brackets 65 and 65 are rotated synchronously. Therefore, the above left
The elevating unit connected by a pair of right chains 68, 68
The table 51 is configured such that the upper sprockets 63, 63
Is rotated in the vertical direction (arrow
h-i), and is driven upward and downward, thus projecting the abrasive material.
The unit C is driven up and down. Note that the projection unit elevating means E
The elevation range of the cleaning material projection unit C is shown in FIGS.
In this case, the abrasive material projecting unit C is
Above the upper end of high-size retaining wall concrete block W
And the above-mentioned abrasive material projection as shown by the symbol C ″
Unit C closes the above retaining wall concrete block W
Between the upper and lower positions of the position retracted below the groove Wf.
You. Further, the abrasive material projecting unit C
The above-mentioned abrasive feeding hose 7 and vacuum ho
8 is suspended and supported by the elevating table 51,
As the table 51 moves up and down, it moves up and down integrally therewith. Projection unit traversing means F The projection unit traversing means F is in front of the work mounting means A.
On a base 75 arranged in parallel with
Wheels 78, 7 on the two front and rear rails 76, 46
, And via a motor 79
When the wheels 78, 78,.
6 and 76.
ing. Then, the lifting column 5 is placed on the trolley 77.
5 is erected and fixed. Therefore, this trolley 77
By traversing, the above-mentioned abrasive material projection unit C becomes the above-mentioned retaining wall.
The concrete block W can be moved in the width direction.
And Fixed side masking means G and movable side
Side masking means H Fixed side masking means G and movable side maskin
Means H is a retaining wall concrete block as described above.
When W is placed on the work placement means A,
Whether you can move to secure a work space
Since the other configurations are exactly the same except for the differences,
Here, referring to FIG. 2, the fixed side masking means G
Only the configuration of the movable side masking means H will be described.
In addition, the description of the fixed side masking means G is referred to.
It shall be. The fixed side masking means G is shown in FIG.
As shown in FIG. 1, one end of the work placement means A in the width direction
, And the specific configuration is
2, a plurality of frame-shaped masking pieces 85 to 85
89 that are stacked in multiple stages
This depends on the height of the retaining wall concrete block W.
The masking pieces 85 to 89 are selectively used. Ma
In addition, the front surface 85a of each of these masking pieces 85 to 89
Rubber materials 90 are attached to
Each masking piece 85-89
Each of these rubber materials 90, 90,.
One piece of rubber material for masking (see Fig. 1)
Is configured. Upper masking means I The upper masking means I is provided by the retaining wall concrete block.
At the position above the upper end of the
The masking of C is shown in FIGS. 2 and 3.
As shown, a rectangular plate with a rubber material 93 attached to the front
Frame material 94 and the main column 56 of the elevating column 55
A pair of left and right fixed brackets 9 that are detachably attached
7, 97 are connected at one end to
The left and right sides of the frame member 94 are connected to the other end, respectively.
Upper link bar 95, lower link bar 96, and their expansion and contraction
The upper link bar 95 is moved up and down (arrow j
-K direction).
Is done. Also, at the lower end of the frame member 94,
Retaining wall concrete block W with car 77
Guide rollers 99, 99 rolling on the upper surface We of the
Is attached. Further, the upper masking means I
Attachment of the fixed bracket 97 to the lifting column 55
By selecting the position appropriately in the vertical direction, the height of the work surface
Multiple types of retaining wall concrete blocks with different dimensions
W is also applicable. Lower masking means J The lower masking means J is provided by the above retaining wall concrete block.
The lower part of the cut W than the parting groove Wf is cast with the abrasive material.
For masking the firing unit C
The sliding support portion 1 provided on the main column 56 of the lifting column 55
02 can be slid in the front-rear direction (arrow mn directions)
Driven by the expansion and contraction of the air cylinder 103
At the tip of a pair of left and right girders 101, 101
Roll in the parting groove Wf of the wall concrete block W
While attaching the guide rollers 104, 104,
The tip of this pair of left and right advance / retreat girder 101, 101 and the advance / retreat girder
101, a pair of left and right support frames extending downward from
Rubber for masking between the ends of the
Material 106 is attached. Description of the operation of the shot blasting device Z For the operation of the shot blasting device Z configured as described above,
The outline of this is as described above, so here
Only the important ones of the components
A description will be given individually according to the operation procedure of the blast operation. First, a retaining wall connection to the work mounting means A
This is the work of placing the cleat block W.
Then, move the horizontal carriage 77 to the left and right of the work placement means A.
Stop at one end. In addition, the air cylinder 4
5 and extend the abrasive material projection unit C in the direction of arrow d.
And the abrasive material projecting unit C is
By means of the projection unit lifting means E, both upper and lower
Set the position to one of the positions. In addition, the upper cell
While raising the king means I in the direction of arrow j,
The lower masking means J is retracted in the direction of arrow m. Heel
Place the retaining wall concrete block W under the condition
Work is performed. Work of the retaining wall concrete block W
When the mounting operation on the mounting means A is completed, the upper mask
Guide means I is lowered in the direction of arrow k,
-99,99 is the upper surface of the retaining wall concrete block W
The rubber material 93 is brought into contact with the We
And the lower masking means.
J is also advanced in the direction of the arrow n so that the guide roller 10
Parting of 4,104 from above retaining wall concrete block W
The rubber material 106 is brought into contact with the groove Wf to
Set it to the shooting position. Thereafter, the air cylinder 45 is reduced in size.
Then, the abrasive material projection unit C is advanced in the direction of arrow e.
The brush 15 located on the front of the housing 10
It is brought into contact with the surface Wc of the concrete block W. this
In this case, no external force acts on the abrasive material projection unit C
(In other words, the abrasive material projection unit C is
Air-separated from the polishing material projection unit C
(In a state where the operating force of the solder 45 is not applied)
The abrasive material projecting unit C has its own weight moment.
2 Rotate the pivot pin 41 in the direction of arrow g
Therefore, in this state, the lower guide rollers 34, 34
Which protrudes most forward, this is a retaining wall concrete block
The state is closest to the surface Wc of W. This state
From above, the air cylinder 45 is contracted to project abrasive material
When the entire unit C is moved forward,
The lower guide roller 34 on the lower side of the housing 10
34 contacts the surface Wc of the retaining wall concrete block W
And the abrasive material projection unit C is connected to the air cylinder 45.
Therefore, as the material is pushed forward,
C is centered on the lower guide rollers 34, 34
Pivots in the direction of the arrow f, and is finally above the housing 10
Upper guide rollers 33, 33 are retaining wall concrete blowers.
The forward movement is stopped by contacting the surface Wc of the
It is. In addition, the grinding by the operating force of the air cylinder 45 is performed.
Pressing action of the cleaning material projection unit C on the surface Wc side
Is maintained until the end of work. This state is the state shown in FIG. Follow
In this state, the upper guide rollers 33, 3
3 and the lower guide rollers 34 and 34 are both
By contacting the surface Wc of the cleat block W,
The housing 10 of the cleaning material projection unit C (in other words,
The distance between the discharge nozzles 18, 18) and the surface Wc is kept constant.
And the projection method of the abrasive material projection nozzle 18
The direction must always be defined in a direction perpendicular to the surface Wc.
And Moreover, such an abrasive material projecting nozzle 18
The relative relationship with the surface Wc is as follows.
Supported rotatably about the second pivot pin 41;
The cleaning material projection unit C is operated by the air cylinder 45.
Achieved by a configuration that presses against the surface Wc by force
As shown in this example,
Not only when Wc matches the vertical plane, but also when the surface W
When c is inclined in the front-back direction with respect to the vertical plane
Or the surface Wc is a curved surface having a relatively small curvature.
The same applies to the case where Also, for example, on the surface Wc
If there are local irregularities, the surface Wc
When the brush 15 is bent and deformed appropriately, it is absorbed.
The housing 10 itself does not rotate and displace,
Regardless of the presence of the protrusion, the abrasive material projection nozzle 18 as described above
The relative relationship with the surface Wc will be maintained. Next, in this state, the abrasive material projecting unit
C, the pair of cleaning material projecting nozzles 18
Each of the cleaning material projecting nozzles 1 while reciprocating in the roak
Abrasive material with pressurized air from 8 and 18
Blast by projecting onto the surface Wc of the reed block W
At the same time as starting the machining operation,
The firing unit C itself is driven up and down, and the projected cleaning
The mortar layer on the surface layer of the surface Wc is appropriately cut
Remove to expose the interior cosmetic aggregates appropriately. When the abrasive material projecting unit C is raised and lowered,
The abrasive material is projected onto the surface Wc by the projection of the abrasive material.
The width corresponding to the stroke S of the projection nozzles 18, 18
Blasting in the vertical direction with
become. In this case, first, each of the above-mentioned abrasives
8, 18 and the surface Wc of the retaining wall concrete block W
Relative relationship (ie, relationship between distance and projection direction) is always constant
, The degree of processing on the surface Wc is
It is made as uniform as possible. Second, the abrasive material projection nozzle 18
The abrasive material projected from is gradually spreading radially
To collide with the surface Wc with a predetermined projection area.
Therefore, within the range of this projection area, it is close to the projection axis.
As the abrasive material collides in the vertical state, the abrasive material
The processing distance (ie, heart shape)
And the distance from the projection axis increases.
There is a relatively large difference in the degree of processing. Therefore, abrasive material projection
The nozzle 18 was fixed at a fixed position without reciprocating
As it is raised and lowered along the surface Wc,
The blasting completed part that extends in a strip along the width direction
The closer to the center of the surface, the larger the shaved state
Is very unfavorable in terms of
You. However, as in this embodiment, the abrasive material
While reciprocating the chiles 18 within a predetermined stroke,
Raising and lowering this causes the abrasive to spread radially.
Non-uniformity in the degree of processing due to
The lower end of the processed part
Despite the occurrence, the degree of processing is made uniform overall. For these two reasons, the retaining wall concrete
Brass uniform over the entire surface Wc of the block W
Process is performed, the accuracy of the processed surface is improved, and
And the commercial value of the retaining wall concrete block W is improved
Things. Next, the abrasive material projection unit C is moved up and down
Through the upper or lower end of the retaining wall concrete block W
Over upper masking means I or lower masking hand
When reaching the stage J, at that time the above-mentioned abrasive material projection unit C
Stop the ascent and descent, and then move the trolley 77
Brass in the width direction of the retaining wall concrete block W
Shift the machining position horizontally by a predetermined amount, and then
The knit C is raised and lowered to start blasting. This
Una, the up and down movement and the traversal of the abrasive material projection unit C are sequentially repeated.
By returning, the entire surface Wc of the retaining wall concrete block W
Surfaces that are uniformly blasted
It is. Incidentally, the traversing amount of the abrasive material projection unit C,
That is, the overlap width between the preceding machining area and the following machining area
Is set appropriately, as described above,
Abrasive material is projected while spreading radially from 18.
Inconvenience caused by the
Make sure that low-grade parts are formed at both ends
Is to be prevented. On the other hand, the abrasive material projection unit C
When blasting is performed, the bottom
A suction hose 8 is connected and the projection opening
14 around the surface of the retaining wall concrete block W
Since the brush 15 that abuts on Wc is provided,
It is projected from the abrasive material projection nozzle 18 toward the surface Wc.
From the surface of the surface Wc by the cleaned abrasive and the abrasive
The crushed concrete debris and dust are removed by the brush 15
Prevents them from scattering to the surroundings and themselves
Is dropped on the bottom of the housing 10 by its own weight and
Is sucked and discharged from outside through the vacuum hose 8
Therefore, the smooth discharge of the abrasive and the surrounding work environment
Is maintained. Further, around the projection opening 14 of the housing 10
The following advantages are obtained by providing the brush 15. First, for example, a retaining wall concrete block W
Concrete flakes scraped from the surface Wc of the surface
Even if it does not fall from Wc and remains on it,
The material projection unit C moves up and down along the surface Wc.
Or traverse the concrete shards
It is swept down by the fabric 15 and the concrete
This ensures that the debris is discharged. Second, suction on the vacuum hose 8 side
The secondary provided on the ceiling surface 10c of the housing 10 by the action
Secondary air is introduced into the vacuum chamber 11 from the air introduction hole 17.
At the same time, the brush 15 has air permeability.
Secondary air is also drawn in from the brush 15
You. Then, the secondary gas introduced into the vacuum chamber 11
Air is sucked into the vacuum hose 8 as it is
Thus, the vacuum hoe is placed in the housing vacuum chamber 11.
A strong airflow directed toward the airflow 8 occurs, and this airflow
Therefore, the above-mentioned abrasive material or concrete debris is sucked and discharged.
The output action can be further improved. Again
Sometimes, this secondary air causes the inside of the vacuum chamber 11
The degree of vacuum is reduced appropriately and the vacuum chamber 11 and the work
By suppressing the suction effect acting on the surface Wc,
It is easy to move up and down or traverse the above abrasive material projection unit C.
As a result, smooth movement of the abrasive material projection unit C was realized.
It is what is done.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall system diagram of a shot blasting apparatus according to an embodiment of the present invention. FIG. 2 is an enlarged view taken along the line II-II shown in FIG. FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2; FIG. 4 is a longitudinal sectional view showing a specific structure of the blasting material projecting unit shown in FIG. 2; FIG. 5 is a view taken in the direction of arrows VV in FIG. 4; 6 is a view taken in the direction of arrows VI-VI in FIG. 4; FIG. 7 is an explanatory diagram of an operation method of blast processing using the shot blast device of the present invention. [Description of Signs] 1 is a compressor, 2 is an air dryer, 3 is a blast machine, 4 is an elevator, 5 is an abrasive material sorting and collecting machine, 6 is a dust collection unit, 7 is an abrasive material pumping hose, and 8 is a vacuum hose. , 10 is a housing, 11 is a vacuum chamber, 12 is a long hole opening, 13 is a sealing cloth material, 14 is a projection opening, 15 is a brush 1, 17 is a secondary air introduction hole, 18 is a polishing material projection nozzle,
20 is a nozzle slide mechanism, 21 is a slider, 22 is a guide plate 2, 23 is a guide roller, 24 is a connecting rod, 2
5 is a bracket, 26 is a guide rod, 27 is a rack rod, 28 is a pinion gear, 29 is a reducer, 30 is an air motor, 31 is a link mechanism, 32 is a mounting bracket, 3
3 is an upper guide roller, 34 is a lower guide roller,
35 is an upper support, 36 is a lower support, 37 to 39 are link bars, 40 to 43 are pivot pins, 45 is an air cylinder, 48 and 49 are stoppers, 51 is a lifting platform, 52 is a front end frame material, 53 is a guide roller, 55 is a lifting column, 56 is a main column, 57 is an auxiliary column, 60 is a motor, 61
Is a rotating shaft, 62 is a drive pulley, 63 to 66 are sprockets, 68 and 69 are chains, 70 is a counterweight, 71 to 73 are cable end stoppers, 75 is a base, 76 is a rail, 77 is a traverse truck, and 78 is Wheels, 79 are motors, 8
1 is a girder material, 85 to 89 are masking pieces, 90 and 9
3 is a rubber material, 94 is a frame material, 95 is an upper link bar, 9
6 is a lower link bar, 97 is a fixed bracket, 98 is an air cylinder, 99 is a guide roller, 101 is an advance / retreat girder,
102 is a sliding support portion, 103 is an air cylinder, 104 is a guide roller, 105 is a support frame, 106 is a rubber material, A is a work placing means, B is a polishing material pumping means, C is a polishing material projection unit, D is projection unit supporting means, E is projection unit elevating means, F is projection unit traversing means, G
Is a fixed side masking means, H is a movable side masking means, I is an upper masking means, J is a lower masking means, L is a trajectory of the projection unit, W is a retaining wall concrete block (work), and Z is a shot blasting device. is there.

Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B24C 3/06

Claims (1)

(57) [Claims 1] An abrasive material is projected onto a substantially planar work surface (Wc) of a work (W) as a concrete molded product, and the work surface (Wc) is projected. A work blasting device for imparting an appropriate filer action to the surface layer of the work, wherein the work (W) is placed and fixed so that the surface direction of the work surface (Wc) is along the vertical direction. ( A ), abrasive material pumping means ( B ) for mixing granular abrasive material with pressurized air and feeding pneumatically, and abrasive material pumped by the abrasive material pumping means ( B ). The abrasive material projection unit ( C ) having an abrasive material projection nozzle (18) for projecting the workpiece (Wc) together with the compressed air onto the work surface (Wc), and the abrasive material projection unit ( C ) The abrasive material projection nozzle (18) is always at a predetermined distance from the processing surface (Wc). Has a projection unit supporting means for as support to maintain the opposite and projecting direction orthogonal to (D), the plane direction of the processing surface (Wc) of the Institute cleaning agent projection unit (C) the workpiece (W) A projection unit elevating means ( E ) for elevating and lowering the abrasive material in the vertical direction along the surface of the workpiece (W), and moving the abrasive material projection unit (B) in the horizontal direction along the surface direction of the work surface (Wc) of the workpiece (W). projection unit transverse means (F) and a Rutotomoni, the projection unit supporting means (D) is, the Institute cleaning agent projection Yoo
Knit (C) the axis of the abrasive material projection nozzle (18)
Swingably support in the direction of inclination and
The workpiece (W) is contacted by the driving force of the eta (45).
Link mechanism that operates to move forward and backward in the direction of release
(31) and the abrasive material projection unit by the link mechanism (31)
Work surface of the work (W) with the forward movement of (C)
(Wc), the abrasive material projection nozzle (1
8) perpendicular to the surface to be machined (Wc).
The distance between the projection nozzle (18) and the processing surface (Wc) is
A guide means (33) for defining a predetermined dimension;
A shot blasting device characterized by being used.