TWI522208B - Nozzle processing device - Google Patents

Description

Bead processing device

The present invention relates to a bead processing apparatus for performing surface treatment of a plurality of workpieces.

The present application claims the benefit of the patent application No. 2010-178241 filed on August 9, 2010, to the Japanese Patent Office, the content of which is incorporated herein by reference.

For the surface processing of the metal or non-metal workpiece (the adjustment of the surface roughness, the rounding of the corners, or the burring, etc.), for example, a so-called barrel polishing apparatus shown in Patent Document 1 and Patent Document 2 is used. The surface treatment of the barrel polishing apparatus is performed by putting the workpiece and the cutting and grinding medium (also referred to as "media") into the rotating drum of the apparatus, and flowing the workpiece and the medium inside the drum. To perform surface treatment of the workpiece. In the processing of the barrel polishing apparatus, it is necessary to distinguish the workpiece from the medium after the completion of the polishing, which is one of the causes of the processing time, that is, the production time becomes long.

On the other hand, the bead processing technique has been conventionally used to efficiently perform rounding or deburring of metal and non-metal corners, surface roughness adjustment, and casting by spraying the material onto the workpiece. The technology of surface processing such as the flow of traces. The bead processing technique is a highly productive technique, but when processing a plurality of workpieces, it is necessary to have a mechanism for causing the shot to collide with all the workpieces. For example, Patent Document 3 has proposed a vibration type bead processing apparatus which inserts a workpiece into a workpiece. In the vibration drum, the drum is vibrated to agitate the workpiece, and the spray material is sprayed onto the entire workpiece. However, in this conventional device, since it is necessary to provide a vibrating roller in the processing chamber, there is a problem that the processing chamber is increased in size, and the dust collector and the classifier that suck the spray material and the dust in the processing chamber are also enlarged.

Patent Document 1: Japanese Unexamined Japanese Patent Publication No. 7-27744 (OHARA Co., Ltd.)

Patent Document 2: Japanese Unexamined Patent Publication No. Hei 7-37560 (TIPTON Co., Ltd.)

Patent Document 3: JP-A-2008-194792 (SAMPOH Co., Ltd.)

Accordingly, the present invention provides a bead processing apparatus which is small in size and capable of performing surface processing of a plurality of workpieces with high efficiency, and the apparatus including the classifier or the dust collector can be miniaturized as a whole.

According to the present invention, there is provided a bead processing apparatus comprising: a bead processing chamber that surrounds a nozzle/assembly that ejects an ejection material toward a workpiece to perform bead processing, and forms a bead processing region therein; Separating the reusable spray material from the reusable spray material and the dust from the mixture of the spray material sprayed from the nozzle/assembly and the dust generated by the bead processing; the reservoir is used for storing a material to be injected into the nozzle/assembly; and means for recycling to attract and recover the unusable material and The dust is disposed in the bead processing chamber at an angle of 20° to 40°, at least one hollow rolling machine adapted to be placed into the workpiece and rotatable about a central axis; the rolling machine is at one end thereof The bottom portion is closed, and the other end opposite to the bottom portion has an open opening, and a plurality of through holes are formed in the peripheral wall surface, and a cross section parallel to the opening portion is polygonal or round.

According to the bead processing apparatus, a plurality of workpieces are placed in a rolling machine having a polygonal or circular cross section parallel to the opening, and the rolling machine is rotated to agitate the workpiece, and all of the workpieces are agitated. The workpiece is exposed to the side of the opening opposite to the bottom of the rolling machine. Therefore, all of the workpieces can be subjected to bead blast processing by ejecting the blast material from the opening through the nozzle/assembly. Further, the injection material that is ejected toward the inside of the rolling machine is discharged to the outside of the rolling machine through a through hole provided in the wall surface.

The bead processing device may further comprise: a rolling machine holder for detachably holding the rolling machine; and a driving transmission device respectively disposed at a bottom of the rolling machine holder for forming the rolling machine and the central axis thereof a concentric rotating shaft and a driving shaft for transmitting a driving force to the rotating shaft; a rotating means having a rotating force generating means for generating a rotating force; and a driving transmission means coupled to the driving transmission to generate the rotating force The rotational force generated by the means is transmitted to the drive transmission, and the rolling machine holder is formed to be engaged with the outer wall of the rolling machine, and the rolling machine is detachably held in the convex shape of the rolling machine holder. hook.

In this case, two or more of the rolling machines may be provided, and two or more of the rolling machine holders of each of the rolling machines may be held, and two or more of the nozzles/components that eject the injection material into the respective rolling machines may be provided. And the nozzle/component setting means for mounting each of the nozzles/components; the two or more rolling machine holders may also be configured by rotating the two or more rolling machines by one rotation generating means.

By setting a plurality of the rolling machines, it is possible to increase the amount that can be performed by one shot processing. In this case, the two or more rolling machines are rotated by one of the rotation generating means, whereby the number of the rotating means can be reduced, so that the large size of the bead processing apparatus can be suppressed by the increase of the rotating means. Chemical.

Preferably, at least one of the agitation promoting surface and the leakage preventing surface is provided on the inner surface of the rolling machine, wherein the agitation promoting surface is such that the inner diameter of the rolling machine is made toward the bottom near the bottom portion. Continuously reducing to agitate the workpiece, and the leakage preventing surface is continuously reduced toward the opening in the vicinity of the opening on the side opposite to the bottom portion to prevent the workpiece from being processed. leakage.

In this case, it is preferable that the rolling machine has a side wall portion constituting a continuous space having the same inner diameter; and at least one of the agitation promoting portion and the leakage preventing surface forms an angle of 115° to the side wall portion. 135° range.

By rotating the rolling machine in an angular range of 20 to 40, the agitation of the workpiece in the rolling machine can be performed with high efficiency. Again, borrow The agitation promoting portion which is continuously reduced toward the inner diameter of the bottom portion of the rolling machine can be agitated with higher efficiency. Further, when the rolling machine is tilted, when the workpiece is leaked to the outside of the rolling machine during the rotation of the rolling machine, the inner diameter of the opening facing the side opposite to the bottom portion is continuously reduced. Leaking out the prevention surface prevents leakage.

Preferably, the nozzle/assembly includes: a nozzle holder having a path through which the injection material attracted by the negative pressure generated inside the nozzle/assembly passes, and a mixture of the injection material mixed with the compressed air An air nozzle that introduces compressed air into the nozzle holder and generates a negative pressure inside the nozzle holder; and an injection nozzle for injecting compressed air and jets mixed in the mixing chamber toward the workpiece The connecting portion between the nozzle holder and the air nozzle and the connecting portion between the nozzle holder and the injection nozzle each have a sealing member.

In this case, it is not necessary to apply the sprayed material to the pressurizing tank and pressurize the pressurizing tank, for example, as used in the prior art, thereby supplying the sprayed material to the spray nozzle (so-called direct pressure type). A large-scale accessory device can realize miniaturization of the entire device. Further, by providing a sealing member at at least one of a connection portion between the nozzle holder and the air nozzle and a connection portion between the nozzle holder and the injection nozzle, the injection of the spray material can be further stabilized. the amount.

The nozzle/assembly can also be mounted inside the bead processing apparatus by a nozzle/assembly setting means for movably moving the nozzle/assembly to eject the spray material from the opening of the rolling machine toward the inside thereof.

The scroll can be replaced or added according to the shape and processing amount of the workpiece machine. At this time, as described above, the nozzle is mounted by a nozzle/assembly setting means for movably moving it, and the nozzle can be easily performed without separately providing a position adjustment mechanism of the nozzle/assembly which is complicated to operate. The position of the component is adjusted. Further, when the rolling machine is replaced, the position of the nozzle/assembly is moved by the nozzle/assembly setting means, so that the replacement of the rolling machine can be easily performed without removing the nozzle/assembly.

Preferably, at the bottom of the reservoir, a spray material take-up tool for inserting the spray material into the nozzle/assembly is provided; and is connected below the spray material take-up tool for discharging into the reservoir A discharge aid for the spray material.

At this time, it is preferable that the angle formed by the inclination of the reservoir facing the horizontal direction is in the range of 73° to 87°.

By making the inclination angle of the bottom of the reservoir in the range of 73° to 87°, it is possible to prevent the spray material from being piled up inside the reservoir, and the internal spray material can be taken out with high efficiency.

Moreover, when the spray material is exchanged according to the workpiece and the processing purpose, the spray material can be discharged by the discharge assisting device.

Preferably, the recovery means has a discharge means for discharging the unrecyclable sprayed material and dust collected by the recovery means from the inside of the recovery means.

In this way, by providing the discharge aid with the recovery means, the dust can be discharged to the outside of the recovery means without complicated construction or steps.

Preferably, the enclosure of the processing chamber, the rolling machine, the rotating hand The segment, the spray nozzle, the separation means, the reservoir, and the recovery means are disposed on a base that is movable by the moving member.

At this time, each constituent element can be mounted on one base that can be moved by the moving member to form a small and movable bead processing apparatus.

The workpiece to be subjected to the bead processing by the bead processing apparatus of the present invention may be formed of a hard and brittle material having a diameter or a side of 30 mm or less.

The bead processing apparatus of the present invention can be applied to any one of a metal product typified by a cast product, a forged product, or a machined product, or a non-metal product typified by rubber or plastic, and is particularly suitable for use in a workpiece. In particular, the hard and brittle material represented by ceramics or niobium forms a bead processing of the workpiece.

An example of an embodiment of the bead processing apparatus of the present invention will be described with reference to the accompanying drawings. Further, the present invention is not limited to the configuration of the embodiment, and can be appropriately changed as necessary.

Fig. 1 is a front view (right side of Fig. 1) and a left side view (left side of Fig. 1) showing a bead processing apparatus 1 of the present invention. As shown in Fig. 1, the bead processing apparatus 1 is provided with a bead processing chamber 10 (shown in Fig. 2) and a recovery device (recovery means) 30 for providing a door 10a for inputting and discharging a workpiece. The configuration is provided on a moving member, such as a base 50 having a roller 51. Further, a classifying means (separating means) 20 for storing a reservoir (reservoir) 21 for storing the spray material is connected to the bead processing chamber 10.

As shown in FIG. 2, in the bead processing chamber 10, a hollow roll is provided. The motive 11, the rotating mechanism (rotation means) 12, the nozzle/assembly 13, and the nozzle/component setting member (nozzle/component setting means) 14 (shown in Fig. 9). The number of installations of the rolling machine 11 can be arbitrarily set in accordance with the amount of processing of the workpiece. In the present embodiment, four rolling machines 11 are provided. The rolling machine 11 is a polygonal box-shaped or bottomed cylindrical body having an opening at the upper portion, which will be described later in detail.

As shown in Fig. 3, the rolling machine 11 is inserted and held in the rolling machine holder 11a. In order to hold the inserted rolling machine 11 in the rolling machine holder 11a, a bolt or the like may be used, and an engaging means such as a screw portion may be provided in both, and the manner is not particularly limited. In the present embodiment, a hook (not shown) in which the rolling machine holder 11a is formed in a convex shape is formed, and the outer wall of the rolling machine 11 is engaged with the hook, thereby providing a one-touch attachable structure. The center of the bottom surface of the rolling machine holder 11a is provided with a rotating shaft 11b, and the first driving gear 11c (Fig. 4) is attached to the rotating shaft 11b. In the present embodiment, a sprocket is used as the first drive transmission 11c.

The rotation mechanism (rotation means) 12 is constituted by a motor (rotation generating means) 12a and a susceptor 12d. In the present embodiment, as shown in Fig. 3, two rolling bearings 1a are provided with two bearings 12e in a rotating mechanism (rotation means) 12, and the rolling machine holder 11a holding the rolling machine 11 is held in rotation by the bearing 12e. Mechanism (rotation means) 12. Further, in the present embodiment, only one motor 12a is used, and the motor 12a is also provided on the susceptor 12d.

The second drive transmission 12c is attached to the rotating shaft 12b of the motor (rotation generating means) 12a. In order to synchronize the first drive transmission 11c, the second drive transmission 12c must be provided in a necessary shape. For example, such as this In the case where the first drive transmission 11c is a sprocket, the second drive transmission 12c must be disposed such that the height of its teeth and the distance between the teeth and the teeth are the same as those of the sprocket (first drive transmission) 11c. Sprocket.

Alternatively, when a pulley (not shown) is used as the first drive transmission 11c, the second drive transmission 12c must be provided such that the shape of the groove of the pulley (first drive transmission) 11c and the depth of the groove are the same. Pulley.

Therefore, in the present embodiment, the second drive transmission 12c uses the sprocket having the same height of the teeth and the distance between the teeth and the teeth of the sprocket (first drive transmission) 11c.

The second drive transmission 12c and all of the first drive transmissions 11c are coupled by the drive transmission member 12f to transmit the rotational force of the motor (drive transmission means) 12a to all of the rolling machines 11.

In the present embodiment, a chain is used as the drive transmission member 12f. As shown in Fig. 4, the chain 12f is coupled to rotate the pulley (second drive transmission) 12c of the rotary shaft 12b of the motor (rotation generating means) 12a. The force is transmitted to a sprocket (first driving gear) 11c of the rotating shaft 11b of the rolling machine holder 11a (not shown in Fig. 4). Therefore, as the rotation shaft 12b of the motor (rotation generating means) 12a rotates, all the rolling machine holders 11a rotate, and all the rolling machines 11 also rotate.

Next, the shape of the rolling machine 11 will be described with reference to FIGS. 5 and 6. The rolling machine 11 is substantially a hollow body, and has an opening 11d for inserting and discharging the workpiece or ejecting the material toward the workpiece at the upper end thereof, and the bottom end is closed. The wall surface on the outer circumference of the rolling machine 11 has a plurality of through holes 11i. When the bead processing is performed, although the rolling machine 11 is rotated, However, this is to stir a plurality of workpieces placed inside the rolling machine into a flowing state. In other words, in order to prevent all the workpiece from remaining on the bottom or wall portion of the rolling machine 11 and appearing on the opening side, all the workpieces are subjected to bead processing. In order to perform the stirring with high efficiency, the cross-sectional shape of the rolling machine 11 parallel to the opening portion 11d is preferably polygonal or round. In the case of a circular cross section, it is preferable to provide the stirring promotion member 11e on the inner wall of the rolling machine 11 (refer FIG. 5 and FIG. 6).

Further, irrespective of the cross-sectional shape of the rolling machine 11 parallel to the opening 11d, in order to prevent the workpiece from staying at the bottom of the rolling machine 11, it is preferable to be disposed in the vicinity of the bottom of the rolling machine 11 toward the bottom rolling machine 11. The diameter (sectional area) is a stirring promotion surface 11h which is continuously reduced. The inclination angle of the stirring promotion surface 11h is remarkable in the range of 115 to 135 according to the experiment. Further, the through hole 11i is provided so as not to allow the spray material to stay inside the rolling machine, and the diameter of the spray material can pass therethrough, but the workpiece does not leak from the through hole.

Further, by setting the rolling machine 11 obliquely, the agitation can be performed more efficiently. The inclination angle θ of the rolling machine 11 based on the object is preferably in the range of 20 to 40, more preferably in the range of 27 to 32, depending on the experiment. In this case, it is preferable to provide a leakage preventing surface 11f that is continuously reduced toward the opening 11d diameter (sectional area) in the vicinity of the opening of the rolling machine 11 to prevent the bead processing from being caused by tilting the rolling machine 11 The workpiece is leaked from the rolling machine 11 to the outside. However, in the case where the side wall surface of the rolling machine 11 is provided with the leakage preventing surface 11f of substantially 90°, the side wall surface 11g constituting the rolling machine 11 and the leakage preventing surface 11f are provided regardless of the installation angle of the nozzle/assembly 13. In the formed object at the corner portion, the spray material cannot be ejected. In order to prevent the workpiece from leaking out to the outside of the rolling machine 11, and without affecting the bead processing, the angle θ ₂ formed by the leakage preventing surface 11f and the side wall surface of the rolling machine 11 is preferably 115 according to the experiment. ° to 135 ° range.

As shown in Fig. 6, the rolling machine 11 having a hollow bottom and closed at the bottom of the embodiment has an octagonal shape parallel to the cross section of the opening 11d, and has a stirring promotion surface 11h having the inclination angle θ ₁ of 118°. And the leakage prevention surface 11f whose inclination angle θ ₂ is 132°. The motor 12 of the rolling machine 11 is held by the rolling machine holder 11a, and the inclination angle θ of the rolling machine 11 is set to 30° as described above.

Next, the nozzle/assembly 13 for performing bead processing will be described with reference to FIG. The nozzle/assembly 13 is constituted by a nozzle holder 13a, an air nozzle 13b, and an injection nozzle 13c. The nozzle holder 13a has an injection material inlet 13d for inserting the injection material, and the inside of the nozzle holder 13a has a path 13e for allowing the injection material to be fed from the inlet 13d, and a mixing chamber 13f. In the mixing chamber 13f, the compressed air introduced through the air nozzle 13b is mixed with the above-mentioned spray material coming from the path 13e.

13b at one end of the air nozzle having a line for injection of compressed air injection ports 13b _o, and the injection port 13b toward the inner diameter of the _O tapered cylindrical shape. The air nozzle 13b is inserted into the nozzle holder line 13a, so that the compressed air injection port 13b and the _O supply port facing the air side of the nozzle holder 13b _I with a base end of the projection 13a. The base end (compressed air introduction side) of the nozzle holder 13a is communicated with a compressed air supply source (not shown) through a supply port 13b _{i of the} air nozzle 13b through a hose (not shown). The compressed air introduced from the compressed air supply source is injected into the nozzle holder 13a. At this time, a negative pressure is generated inside the nozzle holder 13a. The sprayed material is sucked from the shot material supply port 13d and introduced into the inside of the nozzle holder 13a by the negative pressure. The shot material introduced from the shot material supply port 13d is guided to the mixing chamber 13f through the shot material passage path 13e, and is mixed with the compressed air introduced into the nozzle holder 13a. In the present embodiment, the injection material supply port 13d communicates with the hose H through the reservoir 21 as will be described later to suck the spray material stored in the stored reservoir 21.

Injection nozzle 13c based hollow structure open at both ends among the supply port solid-gas two-phase flow of the compressed air injection member 13c of the cross-sectional area of the side _{I S} 13ci, the ejection orifice lines than the solid-gas two-phase flow on the opposite sides 13c of _O The cross-sectional area of the side S _{13co is} large. The cross-sectional shape of the supply port 13c _i and the injection port 13c _{o may} be any of a circular or rectangular polygonal shape. In the present embodiment, the cross-sectional shape of the supply port 13c _i and the injection port 13c _o is circular. The air nozzle 13c is disposed such that the center line in the longitudinal direction of the air nozzle 13c is substantially on the same line as the center line connecting the center of the supply port 13c _i and the injection port 13c _o of the injection nozzle 13c, and the mixing chamber 13f is The supply port 13c _{i is in} communication. In the solid-gas arising from the two-phase flow mixing chamber 13f, the supply line from the injection port 13c through the _I 13c of the inner nozzle, and injected from the injection port 13c _o.

Further, it is preferable that at least one of the connection portion between the nozzle holder 13a and the air nozzle 13b and the connection portion between the nozzle holder 13a and the injection nozzle 13c is provided with the sealing member 13g. When the compressed air introduced into the inside of the nozzle holder 13a leaks from the gap of the aforementioned connecting portion, The negative pressure generated inside the nozzle holder 13a becomes small, resulting in a decrease in the attraction force of the spray material, but the reduction can be suppressed by providing the seal member 13g. In the present embodiment, grooves are provided on the outer circumference of the air nozzle 13b and the injection nozzle 13c, and an O-ring is fitted in the groove as the sealing member 13g.

Further, in the air nozzle 13b and the injection nozzle 13c, the inner diameter of each of the supply ports 13b _i or 13c _{i is} tapered toward the respective injection ports 13b _o or 13c _o , and a continuously thinned shape can be selected ( Referring to Fig. 8(C)), the shape which is tapered stepwise, the shape including the space in which the same diameter is continuous (see Fig. 8(B)), and the shape which becomes thicker after being continuously or stepwise thinned (refer to Fig. 8(D)) or a shape in which these are combined (for example, a shape in which the same diameter is continuous (see Fig. 8(A)) after being continuously thinned.

In the present embodiment, since four rolling machines 11 are provided, four nozzles/assembly 13 are provided. The nozzle/assembly 13 is mounted in the bead processing chamber 10 by the nozzle/assembly setting member 14 shown in Fig. 9(A). Since the rolling machine 11 of the present embodiment is inclined and has the leakage preventing surface 11f, it is necessary to attach the nozzle/assembly 13 in this manner. The installation member 14 is formed by an arm portion having at least one movable member from a mounting portion in the bead processing chamber to a nozzle setting portion.

For example, in FIG. 9(A), the nozzle/assembly 13 can be placed on the upper and lower sides of the rolling machine 11 by engaging a plurality of corner post members with a plurality of cylindrical members to form a rotatable nozzle/assembly setting member 14. The direction is set to the free position. The portion in which the nozzle/assembly setting member 14 is disposed in the bead processing chamber 10 is not particularly limited, and is disposed in the susceptor 12 (FIG. 2) in the present embodiment. Specifically, as shown in FIG. 9(B), the susceptor 12 (not shown in FIG. 9(B)) The configuration of each component of the nozzle/assembly setting member 14 in which the first, second, third, and fourth arm portions 14a, 14b, 14c, and 14d are sequentially engaged is as follows.

Base 12: A cylindrical member is provided at a position corresponding to the arrangement of each nozzle/assembly 13.

The first arm portion 14a is formed of a corner post member, and has a first hole having the same diameter as the cylindrical member in the longitudinal direction (the vertical direction of the paper surface of FIG. 9(B)), and the base 12 is embedded in the first hole. Cylindrical component. Moreover, the second hole having the same diameter as the second arm portion 14b is provided in the height direction (the upper and lower sides of the paper surface).

The second arm portion 14b is formed of a cylindrical member, and its lower end is fitted and engaged with the second hole of the first arm portion 14a.

The third arm portion 14c is formed of a corner post member and has a hole having the same diameter as the second arm portion 14b in the height direction of one end (the right side of FIG. 9(B)), and the second arm portion is fitted and engaged with the hole portion. Above the 14b. Further, at the other end, a cylindrical member that protrudes upward is provided.

The fourth arm portion 14d is formed of a corner post member and has a hole having the same diameter as the cylindrical member of the third arm portion 14c in the height direction of one end (the right side of FIG. 9(B)), and is fitted and engaged in the hole system. 3 The upper end of the cylindrical member of the arm portion 14c. Further, a holder (not shown) that holds the nozzle/assembly 13 is provided in the vicinity of the other end.

Here, the holder for holding the nozzle/assembly 13 is not particularly limited. For example, it may be fixed to the fourth arm portion 14d by bolts or the like, or may be held by a jaw mechanism. Further, the holder itself may be configured to be rotatable to increase the degree of freedom in setting the nozzle/assembly 13.

The bead processing apparatus according to the present embodiment has a structure in which the installation member 14 of the nozzle/assembly 13 is moved in conjunction with the opening and closing of the door 10a. That is, the nozzle/assembly 13 is moved in such a manner that when the door 10a is opened, the rolling machine 11 is easily detached, and when the door 10a is closed, the sprayed material can be sprayed to the rolling. Inside the machine 11.

Referring to Fig. 10, a classifying device (separating means) 20 will be described. The classifying device (separating means) 20 classifies the sprayed material sprayed from the nozzle/assembly 13 and the dust generated by the bead processing to remove the spray material and the dust that cannot be reused (hereinafter referred to as Dust), and take out the reusable spray material. The classifying device 20 is configured by connecting a first cylindrical body 20a closed by a top plate having a suction member 20c thereon, and a second cylindrical body 20b having a continuous sectional area and The input member 20d is provided on the side surface, and the second cylindrical body 20b is continuously reduced in diameter (sectional area) from the upper side toward the lower side. Below the classifying device 20, a reservoir 21 is connected. Input is connected through a tube member 20d line D ₁ (FIG. 1) in the processing chamber 10. Further, the suction member 20c is connected to the recovery device 30 through the conduit D ₂ (FIG. 1). That is, the space in the bead processing chamber 10, the space in the classifying device 20, the space in the reservoir 21, and the recovery device 30 form a continuous space.

The reservoir 21 for storing the reusable material to be taken out by the classifying device 20 is configured by connecting the third tubular body 21a and the fourth tubular body 21b as shown in Fig. 11 . The third cylindrical body 21a has a diameter (sectional area) continuous with the same diameter as the bottom of the classifying device 20, and the fourth cylindrical body 21b has a diameter (sectional area) which continuously decreases downward. Further, the diameter (sectional area) is continuously reduced, and not only the diameter (sectional area) is uniformly decreased downward, but the reduction rate of the diameter (sectional area) is different stepwise, or includes the same diameter (sectional area). Continuous intervals are also available. In other words, it is sufficient that the section in which the diameter (sectional area) is larger toward the lower side is not included. In this case, the angle θ ₃ formed by the side wall of the fourth cylindrical body 21b with respect to the horizontal plane is set to be in the range of 73° to 87°. When the angle is less than 73°, it is easy to cause the spray material inside the accumulator 21 to be unable to take out the spray material due to the accumulation phenomenon above. In order to prevent this, the angle is as large as possible, but if the angle is larger than 87, the discharge assisting device 21d to be described later is increased in size. Therefore, in order to efficiently take out the spray material from the accumulator 21 and reduce the discharge assisting device 21d, the angle θ _{3 is} preferably set in the range of 73° to 87°. Further, in the vicinity of the lowermost portion, a spray material take-out tool 21c for supplying the spray material stored in the inside of the reservoir 21 to the nozzle/assembly 13 is provided. The shot material take-out tool 21c is connected to the shot material input port 13d of the nozzle/assembly 13 through the hose H (Fig. 2). Further, a discharge assisting device 21d is provided on the lowermost side of the fourth tubular body 21b. As the discharge assisting device 21d, a butterfly valve is used in the present embodiment, but a ball valve or a gate valve may be used instead. Further, the cylindrical bodies 21a and 21b of the reservoir 21 may be a cylindrical body or a cylindrical body having a polygonal cross section. In the present embodiment, a cylindrical body having a rectangular cross section is used.

In the present embodiment, the recovery device 20 and the reservoir 21 are provided to The shot material take-out tool 21c of the small stocker 21 is disposed in the shot processing chamber 10, but the installation portion is not particularly limited as long as there is no problem in supplying the shot material to the nozzle/assembly 13.

In the present embodiment, the dust collecting device 30 for recovering the dust is a dust collector in which a filter cloth for separating solid (dust) and gas from a solid-gas two-phase flow is used.

Moreover, as a method of removing (clearing) the dust deposited on the filter cloth at the time of collection, a pulse jet method in which compressed air is intermittently blown to the filter cloth is used. However, the mode is not particularly limited, and for example, a mechanical means by mechanical means can also be used.

As shown in FIG. 12, in the recovery device 30, a discharge tool 31 is provided in order to discharge the dust stored on the filter cloth and stored in the bottom of the recovery device 30 to the outside of the recovery device 30. In the present embodiment, the discharge device 31 uses a ball valve, but a gate valve, a rotary valve, or the like may be used instead.

(Example)

Next, the bead processing of the bead processing apparatus of the present embodiment will be described. In the present embodiment, a description will be given of a process for roughening a ceramic component as a workpiece of 0.8 × 1.6 mm. In the present specification, the term "small-sized workpiece" refers to a workpiece having a diameter or a side of approximately 30 mm or less, and in particular, the workpiece having a diameter or a side of approximately 2 mm or less can be suitably used. Bead processing device.

The door 10a of the bead processing chamber 10 is opened, and four rolling machines 11 are taken out from the inside of the bead processing chamber 10, and the workpieces are respectively introduced into the respective rolling machines 11 in the same amount. Then, the rolling machine 11 is further engaged with the rolling machine holder 11a. It is installed in the bead processing chamber 10. Further, a necessary amount of the spray material (the zirconia according to the present embodiment) is put into the bead processing chamber 10, and the door 10a is closed. Further, the opening and closing of the door 10a may be performed manually, and may be achieved by mechanical operation such as an air cylinder.

Next, by operating the recovery device 30, the injection material is transferred to the classification device 20 by the suction force generated by the recovery device 30, and then stored in the reservoir 21.

Next, the four rolling machines 11 are operated by operating the motor 12a. The workpiece in the rolling machine 11 is stirred by this operation.

Next, the compressed air generating source is operated, and compressed air having a pressure of, for example, 0.7 MPa is injected from the air nozzle 13b, whereby a negative pressure is generated inside the nozzle/assembly 13. The spray material is supplied to the nozzle/assembly 13 by the negative pressure from the injection port 13c. Spray with compressed air. The bead processing is performed by the sprayed spray material striking the surface of the workpiece. Further, since the workpiece is agitated by the rotation of the rolling machine 11, all the workpieces are sequentially exposed to the spray material, and the bead processing of all the workpieces can be performed.

Mixture injection material injected by the bead blasting and dust arising from machining, using a system of attraction generated by the recovery unit 30, is transferred through a tube D ₁ to classifying means 20. Inside the classifying device 20, a swirling airflow is generated by the attraction generated by the aforementioned recovery device 30. That is, since the attraction force is generated from above the classifying device 20, the above-mentioned sprayed material and the dust which are supplied to the classifying device 20 are caused by the swirling airflow moving the heavier powder to the lower side, and being lighter. The powder moves to the top. That is, since the reusable spray material is heavier than the dust, it moves to the lower side and is stored in the accumulator 21, and is again ejected from the nozzle/assembly 13 through the hose H, because the dust is light, so it will go moves upward, D ₂ is transferred through conduit 30 to recovery. The dust transferred to the recovery device 30 is deposited on the surface of the filter cloth inside the recovery device 30. The dust deposited on the surface of the filter cloth is stored at the bottom by pulse jet cleaning. The stored dust is discharged to the outside of the recovery device 30 by opening the discharge device 31.

When the workpiece has been processed to the shape of the target, the operation of the compressed air supply source is stopped. At this time, the rotation of the motor 12a continues. This is to discharge the injection material remaining in the rolling machine 11 through the through hole 11i of the wall surface to the outside. Likewise, the operation of the recovery unit 30 continues. Since the inside of the bead processing chamber 10 is filled with the spray material and the dust, the waste material is stored (recovered) in the accumulator 21 or recovered by the recovery device 30 in order to pass the classification device 20 .

After the shot material inside the rolling machine 11 has been discharged, and the shot material and dust inside the shot processing chamber 10 are recovered, the operation of the motor 12a and the recovery device 30 is stopped, and the door 10a of the bead processing chamber 10 is opened. The bead processing is completed by taking out the workpiece.

In addition, when it is necessary to discharge the material to be stored in the reservoir 21 in order to change the material to be processed or to change the object to be processed, it is easy to open the discharge aid 21d. The spray material is taken out.

Further, when it is necessary to replace the rolling machine 11 with another shape due to a change in the workpiece or the like, the nozzle/assembly setting member 14 is driven, and the position adjustment of the nozzle/assembly 13 can be easily performed.

An example of the bead bead processing apparatus 1 of the present embodiment is shown in FIG. Fig. 13(A) shows the opening and closing of the door 10a by mechanical power (in this case, the cylinder), and Fig. 13(B) shows the opening and closing of the door 10a by manual (manual).

The present invention has been described with respect to specific embodiments, but many modifications and modifications can be made. For example, the nozzle/assembly 13 may use a so-called direct pressure type as long as the space for attaching equipment such as a pressurizing tank can be secured.

In the above embodiment, in order to rotate and hold the rolling machine 11, although the rolling machine holder 11a is used, the embodiment in which the rolling machine 11 having the drive shaft at the bottom is omitted, and the embodiment of the rolling machine 11 having the drive shaft at the bottom may be omitted. .

The blasting material is a steel granule, a ceramic system, a resin system, a plant system, or the like, which is an iron-based or non-ferrous-based granule or coarse granule, or a thin wire is cut (or a rounded corner is cut). Generally, the bead processing can be suitably used as a spray material.

In the above embodiment, the bead processing of the workpiece formed of the hard and brittle material has been described. However, the bead processing apparatus of the present invention is applicable to the metal material or the non-metal material. Spray beads processing all.

1‧‧‧Bead processing device

10‧‧‧Bead processing room

10a‧‧‧

11‧‧‧ rolling machine

11a‧‧‧Rolling machine holder

11b‧‧‧Rotary axis

11c‧‧‧1st drive transmission (sprocket)

11d‧‧‧ openings

11e‧‧‧Agitator-promoting components

11f‧‧‧ leak prevention surface

11g‧‧‧ side wall

11h‧‧‧Stirring promotion surface

11i‧‧‧through hole

12‧‧‧Rotating mechanism (rotation means)

12a‧‧‧Motor (rotation means)

12b‧‧‧Rotary axis

12c‧‧‧2nd drive transmission (sprocket)

12d‧‧‧Base

12e‧‧‧ bearing

12f‧‧‧Drive transmission means (chain)

13‧‧‧Nozzles/components

13a‧‧‧Nozzle holder

13b‧‧‧air nozzle

13b _i ‧‧‧Compressed air supply port for air nozzle

13b _o ‧‧‧Compressed air injection port for air nozzles

13c‧‧‧jet nozzle

13c _i ‧‧‧ supply port for solid-gas two-phase flow

13c _o ‧‧‧The opening of the solid-gas two-phase flow

13d‧‧‧Injection of injection material

13e‧‧‧Spray path

13f‧‧‧Mixed room

13g‧‧‧ Sealing means

14‧‧‧Nozzle/component setting member (nozzle/component setting means)

14a‧‧‧1st arm

14b‧‧‧2nd arm

14c‧‧‧3rd arm

14d‧‧‧4th arm

20‧‧‧Classification device (separation means)

20a‧‧‧1st cylinder

20b‧‧‧2nd cylinder

20c‧‧‧Attraction components

20d‧‧‧ Input components

21‧‧‧Retainer

21a‧‧‧3rd cylinder

21b‧‧‧4th cylinder

21c‧‧‧Spray out tool

21d‧‧‧Exhaust aids

30‧‧‧Recycling device (recycling method)

31‧‧‧Export

50‧‧‧Abutment

51‧‧‧Mobile components

H‧‧‧Hose

D ₁ ‧‧‧ conduit for classification device

D ₂ ‧‧‧Recycling device conduit

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. The detailed description of the preferred embodiments together facilitates the description of the gist of the invention.

Fig. 1 is a front view and a side view schematically showing the configuration of a bead processing apparatus according to the present invention.

Fig. 2 is an explanatory view showing the internal structure of a bead processing chamber in the bead processing apparatus of Fig. 1;

Fig. 3 is an explanatory view showing a method of providing a rolling machine to a rotating mechanism in the bead processing device of Fig. 1;

Fig. 4 is an explanatory view showing a method of installing a drive transmission member in the bead bead processing apparatus of Fig. 1.

Fig. 5 is an explanatory view showing an example of a rolling machine having a circular longitudinal section which can be used in the bead processing apparatus of the present invention. Fig. 5(A) is a side view of the rolling machine, Fig. 5(B) is a cross-sectional view taken along line A-A in Fig. 5(A), and Fig. 5(C) is a perspective view of the rolling machine of Fig. 5(A).

Fig. 6 is an explanatory view showing an example of a rolling machine having a polygonal longitudinal section which can be used in the bead processing apparatus of the present invention. Fig. 6(A) is a side view of the rolling machine, Fig. 6(B) is a view taken along line A-B in Fig. 6(A), and Fig. 6(C) is a cross-sectional view taken along line B-B in Fig. 6(A).

Fig. 7 is an explanatory view showing a nozzle/assembly in the bead processing apparatus of Fig. 1.

Figure 8 is a cross-sectional view showing a cross-sectional shape of an injection nozzle in the nozzle/assembly of Figure 7.

Fig. 9 is an explanatory view showing a nozzle/assembly setting member which can be used in the bead processing apparatus of the present invention. Figure 9 (A) shows the nozzle / assembly setting member FIG. 9(B) is an explanatory view showing an example of the configuration of the installation member.

Fig. 10 is a side view showing the classifying device in the bead processing device of Fig. 1.

Figure 11 is a side elevational view showing the reservoir in the bead processing apparatus of Figure 1.

Fig. 12 is an explanatory view showing a collecting device in the bead processing device of Fig. 1.

Figure 13 is a reference view showing an embodiment of the bead processing apparatus of the present invention. Fig. 13(A) is an external view showing a bead processing apparatus for achieving opening and closing of a door by mechanical power, and Fig. 13(B) is an external view showing a bead processing apparatus for opening and closing a door by manpower.

10‧‧‧Bead processing room

11‧‧‧ rolling machine

12‧‧‧Rotating mechanism (rotation means)

13‧‧‧Nozzles/components

20‧‧‧Classification device (separation means)

21‧‧‧Retainer

H‧‧‧Hose

Θ‧‧‧ angle

Claims (12)

A bead processing apparatus comprising: a bead processing chamber that surrounds a nozzle/assembly that ejects an injection material toward a workpiece to perform bead processing; and forms a bead processing region therein; and a separation means from the nozzle/assembly a mixture of the sprayed spray material and the dust generated by the bead processing, separating the reusable spray material from the reusable spray material and dust; and a reservoir for storing the input to the nozzle/component a spray material; and a recovery means for attracting and recovering the sprayable material and dust that can no longer be used; and characterized in that at least two of the spray bead processing chamber are inclined at an angle ranging from 20° to 40° The above is suitable for a hollow rolling machine which is inserted into the workpiece and rotatable about a central axis; the rolling machine has a closed bottom at one end, and the other end opposite the bottom has an opening which is opened and sprayed with the spray material a plurality of through holes are formed in the peripheral wall surface, and a cross section parallel to the opening portion is polygonal; the bead processing device further includes: at least two or more rolling machine holders, Holding at least two or more rolling machines; the first driving gears are respectively disposed at the bottoms of the rolling machine holders, so that the first rotating shaft corresponding to the rolling machine and the central axis thereof are concentrically rotated and a driving force is transmitted to the first rotating shaft; and the rotating means has a second rotating shaft provided with the second driving gear a driving force generating means for generating a rotational force; and a driving transmission member for transmitting a rotational force of the second driving gear of the second rotating shaft of the rotational force generating means to the first driving gear to make the at least two or more The rolling machine couples the first driving gear to the second driving gear by means of a rotation force generating means; the nozzle/assembly has a plurality of nozzles, and at least one nozzle corresponds to each of the rolling machines. The bead processing apparatus according to claim 1, wherein at least one of a stirring promotion surface and a leakage prevention surface is provided on an inner surface of the rolling machine, wherein the stirring promotion surface is The cross-sectional area of the rolling machine is continuously reduced toward the bottom near the bottom portion to promote the stirring of the workpiece, and the leakage preventing surface is caused to be rolled toward the opening portion near the opening portion on the side opposite to the bottom portion. The sectional area of the machine is continuously reduced to prevent leakage of the workpiece. The bead processing apparatus according to claim 2, wherein the rolling machine has a side wall portion constituting a continuous space in which the inner diameter is not reduced in diameter; and at least one of the agitation promoting surface and the leakage preventing surface is The angle formed by the side wall portion is in the range of 115 to 135. The bead processing apparatus of claim 1, further comprising: the rolling machine holder is formed with a card for engaging with an outer wall of the rolling machine, and the rolling machine is detachably held by the rolling machine holder Hook of the shape. Such as the bead processing device of claim 1 of the patent scope, wherein The nozzle/assembly includes: a nozzle holder having a path through which the injection material attracted by the negative pressure generated inside the nozzle/assembly passes, and a mixing chamber that mixes the injection material with the compressed air; Introducing compressed air into the nozzle holder and generating a negative pressure inside the nozzle holder; and spraying nozzles for injecting compressed air and a spray material mixed in the mixing chamber toward the workpiece; Both the connection portion between the holder and the air nozzle, and the connection portion between the nozzle holder and the injection nozzle have a sealing member. The bead processing apparatus of claim 1, wherein the nozzle/assembly is mounted inside the bead processing apparatus by a nozzle/assembly setting means for moving the nozzle/assembly in a freely movable manner The opening of the rolling machine ejects the spray material toward the inside thereof. The bead processing device of claim 1, wherein the rolling machine and the rolling machine holder are respectively four, the first driving gear is a sprocket, and the second driving gear is a pulley, and the driving transmission member is In the case of a chain, the rotational force of the rotational force generating means is transmitted to all of the rolling machines, and the chain connects the pulley to the sprocket. The bead processing apparatus of claim 1 or 7, wherein the reservoir is connected to the underside of the separating means, having an inclined surface having a reduced inner diameter toward a bottom thereof; at the bottom of the reservoir, Provided to put the spray material into the The spray material of the nozzle/assembly is taken out; and a discharge aid for discharging the spray material in the reservoir is connected below the spray material take-up tool. The bead processing apparatus of claim 8, wherein the inclination of the reservoir to the horizontal direction is in the range of 73° to 87°. The bead processing apparatus of claim 1 or 7, wherein the recycling means has the unrecoverable spray material recovered by the recovery means and the discharge of the dust from the inside of the recovery means With. The bead processing apparatus of claim 1 or 7, wherein the nozzle/assembly and the processing chamber of the rolling machine, the rolling machine, the rotating means, the separating means, and the reservoir are disposed inside And the means for recycling is provided on a base that can be moved by the moving member. The bead processing apparatus according to claim 1 or 7, wherein the workpiece is formed of a hard and brittle material having a diameter or a side of 30 mm or less.