JPH07164322A - Feed chamber for projecting material and the like - Google Patents

Abstract

PURPOSE:To surely prevent each nozzle from being clogged by sucking air 1 in out of a nozzle coming in the lower end section of a suction nozzle, and out of air holes formed in the middle of the suction nozzle in a feed chamber for shot blasting device and the like. CONSTITUTION:When a projecting unit is in operation, a shot blasting device applies suction force to a projecting material transporting pipe connected to the suction nozzle 8 of a projecting material feed chamber 25 for sucking projecting material in a chamber main body 1, and projects the projecting material onto each product in a product housing basket for deburring add so on. In this case, air is sucked in by suction force acting on the suction nozzle 8 out of an air suction nozzle 17 provided in such a way that it comes in the lower end of the suction nozzle 8, and also out of the air holes 15 of an air introducing pipe 16 provided for a suction nozzle main body 14. By this constitution, clogging at the opening end section of the suction nozzle 8 and at the middle of the suction nozzle 8 is thereby prevented. A supply port 7 is connected to the discharge port of a cyclone means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projecting material used in a shot blasting apparatus or the like, and a supply chamber for projecting material or the like used when sucking and transferring particles.

[0002]

2. Description of the Related Art Conventionally, a supply chamber for a shot material used in a shot blasting apparatus is formed in one of a chamber body for storing the shot material, an opening / closing lid for covering the opening of the chamber body, and an opening / closing lid. The lower part connected to the supply port for guiding the projection material from the selected sorting device and the suction hose of the suction device for sucking the projection material in the chamber body mounted on the other side of the opening / closing lid is expanded. A suction nozzle, a vibration motor that vibrates the chamber body,
The inert gas supply device is configured to supply an inert gas into the lower end portion of the suction nozzle to prevent the suction nozzle from being clogged.

[0003]

The conventional projection material supply chamber has the drawbacks of large size and high cost due to the use of a vibration motor and an inert gas supply device, and also has the disadvantages of electricity and inert gas activation. However, there is a drawback that the maintenance cost is required because Further, there is a drawback in that it is impossible to completely prevent the accident that the projection material sucked by the suction nozzle is clogged in the suction nozzle portion.

In view of the above-mentioned conventional drawbacks, the present invention has been made.
To provide a supply chamber for a blast material or the like, which has a simple structure and can be downsized, and which can reliably prevent clogging of a suction nozzle or an air supply nozzle to efficiently suck the blast material. It is an object.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read with reference to the accompanying drawings. However, the drawings are for explanation only and do not limit the scope of the present invention.

[0006]

In order to achieve the above object, the present invention provides a chamber main body in which a blast material and the like are housed,
A suction nozzle whose lower part is wide open and which is connected to a suction hose of a suction device attached to the chamber body so as to be able to suck the projection material and the like housed in the chamber body, and a tip part on the bottom surface of the chamber body. Is provided with an air supply nozzle attached so as to enter the lower end portion of the suction nozzle, and an air hole for preventing clogging that is formed in the middle of the suction nozzle and has a diameter smaller than the nozzle hole of the suction nozzle. It constitutes a supply chamber for the projection material and the like.

[0007]

In the supply chamber for projectile material or the like configured as described above, air is sucked from the air supply nozzle that has entered the lower end portion of the suction nozzle, and the clogging prevention air formed in the middle of the suction nozzle. Air is sucked from the holes to prevent the projection material and the like from clogging in the suction nozzle, and the lower end portion of the suction nozzle prevents the projection material and the like from entering the air supply nozzle.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 6, reference numeral 1 is a chamber body in which a blast material 2 is housed.
The chamber body 1 is supported upward by leg members 3, and one bottom surface 1a is formed into an inclined surface so that the projection material 2 can be guided to the other flat floor surface 1b.

4 is an upper opening 5 of the chamber body 1.
The opening / closing lid 4 is formed so as to be detachably attached to the chamber body 1 by a plurality of catch clips 6 and corresponds to one bottom surface 1a of the inclined surface of the chamber body 1. A supply port 7 connected to the projection material supply hose is formed at the portion to be connected.

Reference numeral 8 denotes the other bottom surface 1 of the chamber body 1.
The suction nozzle is a suction nozzle formed through the mounting hole 9 at a position corresponding to b and penetrating the mounting hole 9 so that the height of the suction nozzle 8 can be adjusted. Suction nozzle body 10 and this suction nozzle body 1
0, a threaded portion 11 formed on the outer peripheral portion near the central portion, a positioning nut 12 and fixing nuts 13 and 13 screwed into the threaded portion 11, and a portion located above the opening / closing lid 4. An air hole 15 formed in the suction nozzle body 10 and having a diameter smaller than that of the nozzle hole 14 of the suction nozzle body 10.
And an air introduction pipe 16 having

Numeral 17 is mounted so as to penetrate an air supply nozzle mounting hole 18 formed on the other floor surface 1b of the chamber body 1 and enter the lower end portion of the suction nozzle 8 to prevent the projection material and the like from entering. With the air supply nozzle,
The air supply nozzle 17 has a T-shaped air supply nozzle main body 19 and a lower end portion screwed and fixed to a screw portion 20 formed on the inner wall surface of the air supply nozzle main body 19 at the air supply nozzle mounting hole 18 It is composed of a truncated cone-shaped nozzle tip 21 having a larger diameter than the above, and a fixing nut 23 screwed into a screw portion 22 formed on the outer peripheral portion of the tip of the air supply nozzle body 19.

Reference numeral 24 is a chute that guides the shot material 2 supplied from the supply port 7 mounted in the chamber body 1 to the supply nozzle 8.

The projection material supply chamber 25 having the above-mentioned structure is
As shown in FIG. 5, it is installed in the lower processing chamber 27 of the shot blasting device 26, and is connected to the supply port 7 and the projection material supply hose 29 for discharging the projection material 2 selected by the selection device 28, and the suction nozzle 8 is connected. It is connected to a projection material transport pipe 33 connected to a suction pipe 32 of an impeller type projector 31 installed at the upper part of the upper processing chamber 30.

The connecting portion 34 of the air supply nozzle 17 is connected to the discharge pipe 36 of the sorting device 28 via the hose 35, and the air introducing pipe 16 of the suction nozzle 8 is also connected to the sorting pipe 28 of the sorting device 28 via the hose 37. It is connected to the discharge pipe 36.

When the projection material supply chamber 25 thus connected is operated by the projection device 31 of the shot blasting device 26, the impeller 31a of the projection device 31 causes
A suction force acts on the suction pipe 32 and the projection material transport pipe 33 to suck the projection material 2 in the chamber body 1, and the upper processing chamber 30.
It is projected into the basket 38 in which the product for removing the burrs therein is stored.

Due to the suction force acting on the projection material transport pipe 33, the suction force acts on the suction nozzle 8 to suck the projection material 2 from the lower end portion, and at the same time, the air suction nozzle 17 and the air hole 15 of the air introduction pipe 16. The air can be sucked more to prevent clogging at the opening end of the suction nozzle 8 and clogging in the middle of the suction nozzle 8, and the projection material can be reliably sucked and transferred.

As shown in FIG. 6, the projection material supply chamber 25 connects the supply port 7 to the discharge port 40 of the cyclone device 39 and the suction nozzle 8 to the impeller type projection of the shot blast device 26A. Connected to the projection material transport pipe 33 connected to the suction pipe 32 of the machine 31. Even when mounted and used in this way, the projection material 2 in the chamber body 1 can be surely sucked and supplied without being clogged.

[0019]

Different Embodiments of the Present Invention Next, different embodiments of the present invention shown in FIGS. 7 to 10 will be described. In the description of these different embodiments of the present invention, the same components as those of the first embodiment of the present invention will be designated by the same reference numerals and redundant description will be omitted.

The second embodiment of the present invention shown in FIGS. 7 and 8 is mainly different from the first embodiment of the present invention in that
The bottom surface 1a of the chamber body 1 is formed as a steeply inclined surface to eliminate the need for a chute, and a flange 41 is formed at the lower end portion of the suction nozzle 8 to form a projection material supply chamber 25A having such a structure. However, the projection material 2 that has flowed into the chamber body 1 can be surely prevented from entering the air supply nozzle 17 as well.
The same effect as that of the embodiment can be obtained.

The third embodiment of the present invention shown in FIGS. 9 and 10 is mainly different from the first embodiment of the present invention in that the bottom surface 1c of the chamber body 1 is formed in a hopper shape and suction is performed. In the projection material supply chamber 25B configured as described above in that the nozzle 8 is arranged along the inclined surface of the bottom surface, the projection material 2 flowing into the chamber body 1 enters the air supply nozzle 17. The same can be surely prevented, and the same effect as the first embodiment of the present invention can be obtained.

In each of the embodiments of the present invention described above, the blast material supply chamber for sucking and transferring the blast material has been described. However, the present invention is not limited to this, and the same may be applied to the suction transfer of granular materials. You can

[0023]

As is apparent from the above description, the following effects can be obtained in the present invention.

(1) A chamber main body for accommodating projection materials and the like, and a lower portion connected to a suction hose of a suction device attached to the chamber main body so as to be able to suck the projection materials and the like accommodated in the chamber main body. A widened suction nozzle, an air supply nozzle attached to the bottom surface of the chamber body so that the tip of the suction nozzle enters the lower end of the suction nozzle, and a nozzle of the suction nozzle formed in the middle of the suction nozzle Since it is composed of air holes with a diameter smaller than the holes for preventing clogging, when the projection material etc. stored in the chamber body is sucked and transferred by the suction nozzle, the air supply nozzle at the lower end and the air hole in the middle More air can be sucked in, and clogging of the shot material and the like in the suction nozzle can be reliably prevented.

(2) According to the above (1), it is not necessary to use a vibration motor or an inert gas supply device as in the conventional case, and the size can be reduced and the manufacturing cost can be reduced.

(3) According to the above (1), since the projection material and the like can be suction-transferred without being clogged by the suction force of only the suction device, the vibration motor can be electrically operated as in the conventional case,
It is not necessary to supply an inert gas, maintenance costs are unnecessary, and it can be used at low cost.

(4) According to the above (1), the projection material and the like can be sucked and transferred by the suction nozzle without clogging, so that the projection material and the like can be reliably and efficiently sucked and transferred.

(5) According to the above (1), since the tip of the air supply nozzle is mounted so as to enter the lower end of the suction nozzle, the blast material etc. flowing into the chamber body enters the air supply nozzle. Can be reliably prevented. Therefore, the projection material or the like can be surely sucked without clogging.

(6) Claims 2 and 3 are also the above (1) to (5).
The same effect can be obtained, and by adjusting the gap between the suction nozzle and the air supply nozzle, it is possible to suck the blast material and the like in the optimum state, and at the same time, the blast material is supplied into the chamber body near the suction nozzle. Etc. can be reliably guided.

[Brief description of drawings]

FIG. 1 is a partially broken cross-sectional view showing a first embodiment of the present invention.

FIG. 2 is a side view showing the first embodiment of the present invention.

FIG. 3 is a partially cutaway plan view showing the first embodiment of the present invention.

FIG. 4 is a sectional view taken along line 2-2 of FIG.

FIG. 5 is an explanatory diagram of a usage state of the first embodiment of the present invention.

FIG. 6 is an explanatory diagram of a different usage state according to the first embodiment of this invention.

7 and 8 are explanatory views showing a second embodiment of the present invention.

9 and 10 are explanatory views showing a third embodiment of the present invention.

[Explanation of symbols]

1: chamber body, 2: projection material, 3: leg member, 4: opening / closing lid, 5: opening,
6: Catch clip, 7: Supply port, 8: Suction nozzle, 9: Suction nozzle mounting hole, 10: Suction nozzle body, 11:
Screw part, 12: Positioning nut,
13: fixing nut, 14: nozzle hole, 1
5: Air hole, 16: Air introduction pipe, 1
7: Air supply nozzle, 18: Air supply nozzle mounting hole, 19: Air supply nozzle main body, 20: Screw part, 21: Nozzle tip, 22: Screw part, 23: Fixed nut, 24: Chute, 25, 25A, 25B : Projection material supply chamber, 2
6, 26A: Shot blasting device, 27: Lower processing chamber, 28: Sorting device, 29: Projection material supply hose, 30: Upper processing chamber, 31: Projector,
32: suction pipe, 33: projection material transport pipe, 34: connection part, 35: hose,
36: discharge pipe, 37: hose,
38: basket, 39: cyclone device,
40: discharge port, 41: flange.

Claims (3)

[Claims] 1. A chamber body for accommodating projection material and the like, and a lower portion connected to a suction hose of a suction device attached to the chamber body so as to suck the projection material and the like accommodated in the chamber body. An expanded suction nozzle, an air supply nozzle attached to the bottom surface of the chamber body so that the tip of the suction nozzle enters the lower end of the suction nozzle, and a nozzle hole of the suction nozzle formed in the middle of the suction nozzle. A supply chamber for projectile materials and the like, which has a smaller diameter air hole for preventing clogging. 2. A chamber main body for accommodating projection material and the like, an opening / closing lid having a supply port for the projection material etc. detachably attached to the chamber main body covering the upper opening of the chamber main body, and the opening / closing lid. A suction nozzle whose lower part is expanded and connected to a suction hose of a suction device for sucking projectiles and the like housed in the chamber body, which is mounted at a height adjustable position, and a tip part on the bottom surface of the chamber body. An air supply nozzle having a frustoconical shape attached to the lower end of the suction nozzle, and an air hole for preventing clogging, which is formed in the middle of the suction nozzle and has a diameter smaller than the nozzle hole of the suction nozzle. A supply chamber for a blast material or the like characterized by comprising: 3. A chamber main body, in which one bottom surface for accommodating projection material and the like is formed into an inclined surface, an opening / closing lid detachably attached to the chamber main body covering an upper opening of the chamber main body, The height of the opening / closing lid can be adjusted to a position corresponding to the supply port of the projection material or the like formed in the portion where the bottom surface of the chamber body corresponds to the inclined surface and the portion where the bottom surface of the chamber body of the opening / closing lid does not correspond to the inclined surface Attached to the chamber body, which is connected to a suction hose of a suction device for sucking the projection material and the like stored in the chamber body, and a supply nozzle for supplying the projection material and the like housed in the chamber body, the suction nozzle having an expanded lower part A chute that guides the shot material or the like supplied from the mouth to the vicinity of the lower end of the suction nozzle, and a tip attached to the bottom of the chamber body so that the tip enters into the lower end of the suction nozzle. A projection material characterized by comprising an air supply nozzle having a truncated cone shape and an air hole for preventing clogging which is formed in the middle of the suction nozzle and has a diameter smaller than the nozzle hole of the suction nozzle. Supply chamber.