JPH0636765U - Air blast nozzle device - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide an air blast nozzle device capable of freely changing a projection direction of a projection material ejected from a nozzle. [Structure] A torch-shaped casing 3 is provided on the outer periphery of the base of the nozzle 1.
Of the torch-like casing 3 and the reflecting plate 6 is rotated in a direction along the axis of the nozzle 1 inside the position slightly apart from the tip of the nozzle 1 in the torch-like casing 3. A nozzle device for an air blast, which is provided so that its position can be adjusted, and a wall surface portion of the torch-shaped casing 3 corresponding to the reflection surface of the reflection plate 6 has a cutout opening O.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nozzle device used for so-called air blasting, in which a shot material such as sand particles or steel particles is jetted together with a compression air from a nozzle to collide with an object to be processed so as to blast the object to be processed.

[0002]

[Prior art and problems]

 The nozzle for jetting shot material, which is generally used for air blast, is connected via a rubber hose to a supply pipe leading to a pressure tank for pumping and feeding the shot material. The air blast treatment is performed by changing the direction of the nozzle according to the shape of the object to be treated. However, with the above nozzle, it becomes difficult for the operator to change the nozzle direction when the shape of the object to be processed becomes complicated, and in the case of a working robot, an articulated robot cannot be used unless it is an articulated robot, and an expensive robot is used. There was a problem such as the need to use it. The present invention has been made in view of the above problems, and an object of the present invention is to provide a nozzle device for an air blast that can freely change the direction of projection of a projection material ejected from a nozzle.

[0003]

[Means for solving problems]

 In order to achieve the above object, the nozzle device for an air blast according to the present invention comprises a torch-like casing that is fitted and connected to the outer periphery of the base of the nozzle so that the rotational position can be adjusted, and the torch-like casing. The present invention is characterized in that a reflecting plate is provided at a position slightly apart from the tip position of the nozzle in the shing so that the turning position can be adjusted in the direction along the axis of the nozzle.

[0004]

[Action]

 By adopting the above-mentioned solution, the present invention facilitates the processing of an object having a complicated shape by rotationally positioning the torch-like casing and rotationally positioning the reflector. The projection material can be projected onto the complex processing surface.

[0005]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings. A torch-like casing 3 surrounds the entire nozzle 1 via a bracket 2 on the outer periphery of the base of a nozzle 1 which is in communication with a rubber hose (not shown). The torch-shaped casing 3 is rotatably fitted and connected in such a manner that the torch-shaped casing 3 is prevented from rotating by a stop bolt 4 and positioned. At a position slightly apart from the tip end position of the nozzle 1 in the torch-like casing 3 and at a position slightly deviated from the axis line of the nozzle 1, in a direction intersecting the axis line of the nozzle 1 at a right angle with a slight interval. A rotating shaft 5 that is oriented is rotatably supported. A base of a reflection plate 6 having a width in the axial direction of the rotation shaft 5 is fixed to the rotation shaft 5, and the rotation of the rotation shaft 5 via an operation lever R causes the reflection plate 6 to move. The traveling trajectory of the blast material S can be blocked at an arbitrary angle so as to change the traveling direction of the blast material S ejected from the nozzle 1.

Now, the connecting structure of the rotary shaft 5 and the operation lever R will be described with reference to FIG. One end of the rotary shaft 5 is fixedly connected to the base end of a link arm 7 outside the torch-like casing 3, and one end of a connecting link 8 is freely rotatable at the tip of the link arm 7. Are connected to. A cantilever rotation shaft 9 is rotatably supported on the outside of the base of the torch-like casing 3 so as to project outward, and the operation lever R is attached to the cantilever rotation shaft 9. The lower end side of the rotary connecting plate 10 attached to the upper part is fixedly connected, and the other end of the connecting link 8 is rotatably connected to the upper end side of the rotary connecting plate 10.

Further, the connecting plate 10 is provided with an arc-shaped elongated hole 11 drawn centering on the cantilever rotation shaft 9, and the elongated hole 11 is provided at the base of the torch-like casing 3. The bolts 12 that are planted are engaged through, and the rotative connecting plate 10 is fixed at an appropriate position by a wing nut (not shown). Further, a wall surface portion of the torch-shaped casing 3 corresponding to the reflection surface of the reflection plate 6 is formed as a cutout opening portion O for allowing the projection material S to pass therethrough.

[0008]

[Effect of device]

 With such a structure, when the projection material S is jetted from the nozzle 1 in the state of FIG. 1, the projection material S collides with the reflection plate 6 and is reflected, and the inside of the work W which is the object to be processed. It is projected toward the top surface. In this state, if the entire nozzle device is moved to the left, the entire ceiling surface will be ground. Also, by loosening a wing nut (not shown) and tilting the operating lever R to the left to rotate the reflector 6 as shown in the upper chain diagram, the upper half of the vertical surface from the inner upper corner of the work W is lifted. Can be cleaned. Further, the set bolt 4 is loosened and the torch-like casing 3 is rotated by an arbitrary angle, so that the notch opening O is formed on another polishing surface (for example, the inner bottom surface of the work W or the front and rear surfaces in FIG. 1). Correspondingly, if the polishing is performed in the same manner as described above, the processing surface corresponding to the open portion O can be polished. Further, when the surface of the work W facing the nozzle 1 is to be ground and cleaned, the reflection plate 6 is rotated to a position deviated from the course of the projection material S (the position of the bottom chain line in FIG. 1) to carry out the ground and cleaning. You should do so. Further, the notch opening portion O may be formed in a shape cut from a position indicated by a dotted line (a structure in which most of the reflection plate 6 projects from the torch-shaped casing 3). The structure for adjusting the rotational position of the reflection plate 6 is not limited to that of the above embodiment, but an appropriate mechanism can be adopted.

[0009]

[Effect of device]

 As is apparent from the above description, the present invention provides a torch-like casing in which a reflecting plate capable of blocking the injection path of the projection material at an arbitrary angle is arranged in front of the nozzle, and the torch-like casing is rotated relative to the nozzle. Since the configuration is adjustable, it is possible to grind a workpiece with a complicated shape by a simple operation, and an inexpensive simple mechanism can be used even when using an industrial robot. There are various effects such as this, and the advantage is remarkable.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an essential part showing an embodiment of the present invention.

FIG. 2 is an enlarged view showing an example of a rotary position adjusting mechanism of a reflecting plate.

[Explanation of symbols]

 1 Nozzle 3 Torch-like casing 4 Stop bolt 6 Reflector O Notch open part R Operation lever W Work

Claims (1)

[Scope of utility model registration request] 1. A torch-like casing 3 is fitted to and connected to the outer periphery of the base portion of the nozzle 1 so that the rotational position can be adjusted, and the torch-like casing 3 is located slightly from the tip position of the nozzle 1. A nozzle device for an air blast, characterized in that a reflecting plate 6 is provided at a remote position so that a rotational position can be adjusted in a direction along an axis of the nozzle 1.