JPH11866A - Projecting material quantitative feeder for blasting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small projecting material quantitative feeder for a blasting device in a simple structure capable of stably feeding projecting material, even if less in fluidity and fine, from one projecting material quantitative feeder to a plurality of spray nozzles at the same time. SOLUTION: A projecting material picking cylinder 6 in almost cylindrical shape with a plurality of projecting material picking ports on the side faces is connected to the lower end of a hopper 2 via a flexible pipe 5, projecting material feed pipes 15, 16 connected to spray nozzles are connected to the projecting material picking ports with a projecting material feed stop means 9 laid therebetween and the projecting material picking cylinder 6 is fixed at its lower end to a vibration plate 18 of a vibrator 17 which can generate vibrating force in a horizontal and circumferential direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blasting apparatus for a blasting apparatus capable of stabilizing the processing force in blasting.

[0002]

2. Description of the Related Art A conventional type of blasting apparatus for a blasting machine of this type employs a system in which a blasting material flowing down by gravity is limited by a mechanism such as a rotary shutter (for example,
Japanese Laid-Open Utility Model Publication No. 48-79392) and a method of cutting out the blast material by using a parts feeder (for example, see Japanese Patent Publication No. 4222901).

[0003]

However, in the method of restricting the projectile material flowing down by gravity by a mechanism such as a shutter, the apparatus structure is relatively simple, and the apparatus can be manufactured at low cost. When fine particles with a diameter of 100 microns or less, which have low fluidity and adhere easily, are used as the projectile, the flow of the projectile becomes unstable, and the projectile adheres to the restriction and is supplied to the spray nozzle. There is a problem that it is difficult to keep the amount of the shot material to be kept at a predetermined amount, and that the projection material is caught in the sliding portion provided in the shot material flow path, so that the wear and tear of the apparatus is fast.

On the other hand, in the method of cutting out the blasting material by the parts feeder, the vibrating force is applied to the blasting material, so that the fluidity and the adhesion of the blasting material are improved. If it is complicated, large, and expensive, and if it is intended to perform simultaneous injection by a plurality of injection nozzles, which is a general blasting method, the same number of shot material supply devices as the number of injection nozzles are provided. However, there is a problem that the apparatus is complicated, large, and expensive.

The present invention can stably supply a blasting material to an injection nozzle even when employing, for example, fine particles having a diameter of 100 μm or less which have low fluidity and easily adhere to the blasting nozzle. It is an object of the present invention to provide a blasting machine quantitative supply device for a blasting machine capable of simultaneously supplying a plurality of injection nozzles from a single blasting material quantitative supply device without increasing complexity and size.

[0006]

According to the present invention, there is provided a blasting device for a blasting machine, wherein a fixed amount of a blasting material is supplied to a lower end of a hopper through a flexible pipe capable of cutting off a vibration force.
A plurality of projecting material cutouts are connected to a substantially cylindrical projecting material cutting cylinder provided on the side surface, and the projecting material cutout is connected to an injection nozzle via a projecting material supply stopping means. Connect the material supply pipe, and the lower end of the projection material cutting cylinder,
It is characterized by being fixed to a diaphragm of a vibrator capable of generating a vibration force in a horizontal circumferential direction.

The above-mentioned projection material cutting cylinder has a bottom formed in a horizontal plane, and the projection material cut-out port can be pierced at any position on the side surface thereof. It is effective to provide the above-mentioned blasting material sliding plate on the bottom surface of the blasting material cutting tube, and to arrange the blasting material cutout symmetrically around the center of vibration at the lower end of the side surface of the blasting material cutting tube.

Further, the projection material supply stopping means can be made by closing the projection material cutout by a conventional means such as a shutter mechanism while the projection material is not supplied. However, for the reason described later, It is assumed that the shot material cutout and the shot material supply pipe extended from the injection nozzle are connected by a shot material flow path that forms a horizontal portion longer than the natural reach of the shot material to be used, and the horizontal portion is the shot material It is preferable to vibrate together with the cutting cylinder, because the structure becomes simple and the exclusive control and driving means for cutting off the supply of the blast material can be omitted.

Here, it is needless to say that the projecting material is a powder having a low fluidity that does not easily move horizontally, but in the projecting material cutting cylinder, several tens of centimeters including the hopper above it. Are piled up, and depending on the shot material, a slight outflow from the cutout of the shot material is recognized even if no vibration is applied. In this specification, the length of the outflow is defined as the "natural distance of the blast material".

The above-mentioned blast material passage is not limited to a specific structure, but may comprise a vibrating disk fixed horizontally on a vibrating plate, a guide rib, and a blast material discharge port. In addition, the horizontal portion can be curved in the vibration direction in order to smoothly transfer the blast material discharged from the blast material cutout to the blast material supply pipe extended from the injection nozzle.

When the thus configured blast material quantitative supply device for a blasting machine is started, the blast material cutting cylinder fixed to the vibration plate of the vibrator starts vibrating in the circumferential direction, and is sequentially replenished from the hopper. The blast material filling the inside of the blast material cutting cylinder is proportional to the area of the blast material cutting port and the vibration force due to the resulting centrifugal force (the force to move toward the side wall of the blast material cutting tube). A predetermined volume is cut out, discharged to the outside of the shot material cutting cylinder, and sequentially supplied to the injection nozzle via the shot material supply stopping means and the shot material supply pipe. Here, the vertical, substantially cylindrical projectile material cutting cylinder is made to vibrate in the horizontal and circumferential directions, so that the projectile material can be easily replenished from above, and This makes it difficult for uneven distribution to occur, and it is possible to independently provide shot material cutouts at a plurality of locations on the side surface.

Further, since the hopper and the projecting material cutting cylinder are connected by a flexible pipe capable of blocking vibration force, a large amount of projecting material is stored in the hopper to enable continuous operation for a long time. In addition, the hopper can be fixed separately, the energy consumed for generating the vibration force can be reduced, and a small vibrator only needs to be selected. The blast material supply shutoff means provided between the pipes prevents the blast material from flowing out of the blast material cutout due to gravity and entering the blast material supply pipe in a state after the apparatus is stopped, and accurately blasting. Work to end.

[0013] Then, for the above reason, the centrifugal force (vibration force)
By increasing the size, a large amount of blast material can be supplied, so that a blast material slide plate is provided at the bottom of the blast material cutting tube, and a blast material cutout is provided at the lower end of the side surface of the blast material cutting tube. This is more preferable because a centrifugal force is applied to the moving force of the shot material in the outer circumferential direction due to gravity, so that a predetermined amount of shot material can be supplied with a smaller vibration force.
In addition, if the projection material cutout is provided symmetrically with respect to the center of vibration, the balancing of vibration is improved, and when the same amount of projection material is supplied to a plurality of injection nozzles, the vibration conditions are the same. The area of the material cut-out port may be the same, which is preferable because the design and manufacture of the device become easy.

Further, since the horizontal portion of the blast material passage following the blast material cutout is formed to be longer than the natural reach of the blast material,
While no vibration is applied, the projectile in the horizontal part stays in place and does not move, and the projectile cut out before this blocks the projectile cutout to prevent the new projectile from flowing out due to gravity. . On the other hand, while applying vibration,
Since the shot material moves in the outer circumferential direction due to the centrifugal force, the cut shot material is sequentially transferred to the shot material supply pipe, and there is no problem in the quantitative supply of the shot material.

Here, the vibrating disk serves as the bottom of the blast material flow path. On the other hand, the guide wall makes it possible to independently configure a plurality of blast material passages in the same flat plate shape, and simultaneously transfers blast material so that all blast materials reaching the blast material discharge port are projected material. Acts to penetrate the supply pipe. Also,
If a horizontal circumferential vibration force is applied to the projectile in the free state, the projectile moves in the outer peripheral direction while rotating in a spiral shape, so if the projectile flow path is curved to follow this spiral. It is preferable if the projection material can be smoothly moved.

[0016]

Next, preferred embodiments of the present invention will be described with reference to the drawings. In FIG. 1, a substantially cylindrical projecting material cutting cylinder 6 is connected to a projecting material discharge pipe 4 at the lower end of a hopper 2 fixed to a machine frame 3 via a flexible pipe 5 capable of blocking vibration force. At the lower end of the side surface of the shot material cutting cylinder 6, two shot material cutouts 7 and 8 having a rectangular shape are bored symmetrically with respect to the center. Projection material supply pipes 15 and 16 are connected to the projection material cutouts 7 and 8 to an injection nozzle (not shown) via a projection material supply stopping means 9. The tube 6 is vertically fixed on a vibrating plate 18 of a vibrator 17 capable of generating a vibration force in the horizontal circumferential direction, and a projecting material slide plate 20 is fixed to the bottom of the projecting material cutting tube 6. The above vibrator 1
Numeral 7 is fixed to a table 19 projecting from the machine frame 3.

It should be noted that the connection between the blast material cutting cylinder 6 and the hopper 2 can be performed if the blast material in the hopper 2 is replenished to the blast material cutting cylinder 6 without hindering the oscillation movement of the blast material cutting cylinder 6. It is good that the projection material is formed such that the outer diameter of the transfer pipe 4 is smaller than the inner diameter of the projection material cutting tube 6, and the tip of the projection material discharge pipe 4 enters the projection material cutting tube 6. In addition, a conventional projectile separation and reuse means such as a cyclone (not shown) is connected to the upper part of the hopper 2 so that the projectile quantitative supply device 1 of the present invention is mounted on a blasting machine of a projectile circulation type. However, it goes without saying that the function is not hindered.

The above-mentioned projection material supply stopping means 9 will be described in more detail.
A vibrating disk 12 having a perforated plate 14 is horizontally fixed to a vibrating plate 18 of a vibrator 17 and a projecting material cutting cylinder 6 is erected at the center thereof.
The blast material passages 21 and 22 reaching 3 and 14 are formed by being surrounded by the guide walls 10 and 11, respectively.

Since the vibration direction of the vibrator 17 used is clockwise as shown in FIG. 2, the blast material passages 21 and 22 are bent clockwise to form the blast material passage 2.
The guide walls 10 and 11 are formed so that the cross-sectional area of the projection material cutouts 7 and 8 is slightly larger than the cross-sectional area of the projection material cutouts 7 and 8.

Further, all of the blast material cut out from the blast material cutouts 7 and 8 can be blasted without delay.
In order to guide the blast material, the funnel-shaped inclined portion 2 is formed on a part of the upper surface of the vibrating disk 12 forming the outer peripheral end of the blast material flow paths 21 and 22.
3 and 24 are provided. By doing so, as shown in FIG. 3, the natural arrival distance X is determined when the projection material in the space 25 inside the projection material cutting cylinder 6 is stationary (while the projection material is not supplied). Projectile cutout 8 due to gravity
Means the horizontal reaching distance of the projectile flowing out of the projectile toward the projectile flow path, and the inclined portion 2 is separated by a distance Y larger than that.
If the projecting material outlet 3 and the projecting material outlet 13 following the projecting material 3 are located, the projecting material does not naturally move to the projecting material outlet 13, and the projecting material channel 21 serves as the projecting material supply stopping means 9. .

In the thus configured one, abrasive grains are cut out by the vibrating force of the blasting material cutting cylinder 6 vibrated by the vibrator 17, so that fine particles having low fluidity and easily adhering are employed as the blasting material. Thus, a predetermined amount of the blast material can be supplied stably and continuously. Then, since the hopper 2 is connected above the projection material cutting cylinder 6, the amount of the projection material corresponding to the cutout amount is automatically replenished from the hopper 2 to the projection material cutting cylinder 6 by gravity. There is no need to separately provide a blast material transport means, and the apparatus can be configured simply and compactly.

Further, since the projection material cutting cylinder 6 is formed in a cylindrical shape and the projection material is cut horizontally by vibrating force in the circumferential direction, a plurality of injection materials can be formed by one unit without significantly complicating the apparatus. The projectile material can be supplied to the nozzle, and as a result of such a configuration, the supply area of the projectile material during operation can be increased or decreased by adjusting the opening area or the vibration force of the projectile cutouts 7 and 8. Easy.

Further, a flexible pipe 5 capable of shutting off the vibration force is interposed between the hopper 2 and the projecting material cutting tube 6 so that the vibration of the projecting material cutting tube 6 is not transmitted to the hopper 2. Because of the configuration, the weight of the vibrating part can be minimized and the driving energy can be saved, and the small and inexpensive vibrator 17 needs only to be selected from general-purpose commercially available ones. Becomes

Further, by providing the conical projection material sliding plate 20 at the bottom of the projection material cutting cylinder 6, the gravity can be converted into a moving force in the direction of centrifugal force and the conical surface can be used for cutting the projection material. The vibrator 17 can be made more compact and inexpensive, and the projection material passages 21 and 22 that form a horizontal portion longer than the natural reach of the projection material are provided with the projection material supply stopping means 9.
By doing so, there is no need for a dedicated driving means or a driving operation required in the case of using a conventional projection material supply stopping means such as a shutter, a valve, a valve, and the like, whereby the apparatus can be made simpler and smaller.

Further, the oscillating disk 12 having the blast material passages 21 and 22 fixed horizontally on the oscillating plate 18 and the guide wall 1
The configuration of the projection material outlets 13 and 14 facilitates the manufacture of the apparatus, and the projection material flow paths 21 and 22 are curved in the vibration direction to thereby allow the flow of the projection material. Even when the operation is smoothly performed and the operation and the stop are switched to be used in a short time, the supply amount of the blast material can be stabilized.

[0026]

As apparent from the above description, the present invention provides:
Even when fine particles having low fluidity and easy to adhere are used as the projecting material, it is possible to stably supply the projecting material to the injection nozzle, and to avoid the complicated and large size of the apparatus. There are various advantages such as the ability to simultaneously supply the blast material from the blast material constant supply device to a plurality of injection nozzles. Therefore, the present invention solves the problems of the conventional system such as a system in which the projecting material flowing down by gravity is restricted by a mechanism such as a rotary shutter and a system in which the projecting material is cut out by a parts feeder. There is something extremely large that contributes to the industry.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a preferred embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged sectional view of a projection material flow path portion.

[Explanation of symbols]

 2 Hopper 5 Flexible pipe 6 Projection material cut-out tube 7 Projection material cutout 8 Projection material cutout 9 Projection material supply stopping means 10 Guide wall 11 Guide wall 12 Vibrating disk 13 Projection material discharge port 14 Projection material discharge port 15 Projection material supply pipe 16 Projection material supply pipe 17 Vibrator 18 Vibration plate 20 Projection material smooth plate 21 Projection material flow path 22 Projection material flow path

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Moriyasu Izawa Nishiharucho, Nishi-Kasugai-gun, Aichi Prefecture, Uchikami, 51 Shinto Breiter Co., Ltd. (72) Inventor, Masato Watanabe Fukujiji Shinmei 51 Shinto Breiter Co., Ltd.

Claims (5)

[Claims] 1. A projecting material cutting cylinder (6) having a plurality of projecting material cutouts provided on a side surface of a lower end of a hopper (2) via a flexible pipe (5) capable of blocking vibration force. Are connected to the projection material cut-out tube (6),
Through (9), the projectile supply pipe connected to the injection nozzle is connected, and the lower end of the projectile cutting cylinder (6) is a vibrator (17) that can generate a horizontal circumferential vibration force A blasting material fixed supply device for a blasting machine fixed to a diaphragm (18). 2. A projection material cutting plate (6) is provided with a conical projection material sliding plate (20) at the bottom thereof, and a projection material cutting port (7) is provided at a lower end of a side surface of the projection material cutting tube (6). 2. The apparatus according to claim 1, wherein and 8 are arranged symmetrically with respect to the center of vibration. 3. The blast material supply stopping means (9) includes blast material flow paths (21) and (22) including horizontal portions formed independently of each other for each of the blast material cutouts. 3. The method according to claim 1, wherein the length is greater than the natural reach of the blast material, and at least the horizontal portion is fixed to one of the diaphragm and the blast material cutting cylinder. Projectile material fixed supply device for blast processing equipment. 4. The projection material flow paths (21) and (22) are
8) Vibrating disk (12) fixed horizontally on the top and guide wall (10)
The blasting machine quantitative supply device for a blasting machine according to claim 3, comprising a blasting material discharge port (13) and (14). 5. The blast material quantitative supply device for a blasting machine according to claim 3, wherein the blast material flow paths including the horizontal portion are curved in the vibration direction.