WO2013005469A1

WO2013005469A1 - Shot processing device

Info

Publication number: WO2013005469A1
Application number: PCT/JP2012/061113
Authority: WO
Inventors: 万俊山本
Original assignee: 新東工業株式会社
Priority date: 2011-07-07
Filing date: 2012-04-25
Publication date: 2013-01-10
Also published as: JPWO2013005469A1; EP2689892A1; BR112013026821B1; BR112013026821A2; EP2689892B1; JP5900498B2; CN103492125B; IN2014DN00152A; CN103492125A; EP2689892A4; PL2689892T3

Abstract

A shot processing device (10) is provided with: a cabinet (12); a rotary hanger (20); a revolving drive motor (24) that rotates the rotary hanger (20); a rotating drive motor (48) that rotates a hanger disposed in a chamber (42) positioned in projection material projection areas (18A to 18D) inside the cabinet (12), among a plurality of chambers (42) above the rotary hanger (20); centrifugal projection machines (52A to 52D) that carry out shot processing on workpieces (W) by projecting projection material in the chamber (42) positioned in the projection material projection areas (18A to 18D), among the plurality of chambers (42), radially outward from a rotating disk (34) that constitutes the rotary hanger (20); a plurality of bottom screw conveyors (68A, 68B) that recover the projection material projected from the centrifugal projection machines (52A to 52D) and convey said material in a horizontal direction; and a plurality of bucket elevators (70A, 70B) that convey the projection material conveyed by the bottom screw conveyors (68A, 68B) upward.

Description

Shot processing device

One embodiment of the present invention relates to a shot processing apparatus.

Patent Document 1 discloses a shot processing jig (1) having a cage (24), jig rotation holding means (3) for rotating and holding the shot processing jig (1), and jig rotation holding means ( 3) a projection chamber body (2) for sealing, a projection device (7) for projecting the projection material, a projection material circulating means (8) for collecting the projected projection material and supplying it to the projection device (7) Is disclosed.

JP 2010-82727 A

However, in a shot processing apparatus provided with this type of shot processing jig, it is desired to reduce the overall height of the apparatus.

In this technical field, a shot processing apparatus that can reduce the overall height of the entire apparatus is desired.

A shot processing apparatus according to an aspect of the present invention includes a cabinet that is formed in a box shape and includes a projection material projection area therein, a turntable that is rotatably arranged in the cabinet in a horizontal direction, and the turntable Provided on each of the plurality of partition members for dividing the space on the turntable into a plurality in the circumferential direction of the turntable, and the plurality of rooms partitioned by the plurality of partition materials, A rotary hanger having a plurality of hangers for suspending and holding a cage into which a workpiece is inserted, and a revolving drive motor that rotates the rotary hanger to sequentially move the plurality of rooms to a projection material projection area in the cabinet; A rotation driving motor for rotating a hanger provided in a room located in the projection material projection area among the plurality of rooms, and a radially outer side of the rotating disk A projector that projects a projection material onto a room located in the projection material projection area of the plurality of rooms and performs shot processing on the workpiece, and collects the projection material projected from the projector in a horizontal direction. A first projection material conveyance mechanism for conveying, and a plurality of second projection material conveyance mechanisms for conveying the projection material conveyed by the first projection material conveyance mechanism upward.

According to this shot processing apparatus, since a plurality of second projection material conveyance mechanisms for conveying the projection material upward are provided, each second projection material conveyance mechanism can be miniaturized in the height direction. Thereby, the overall height of the entire apparatus can be reduced.

In one embodiment, the shot processing apparatus is transported by a third projection material transport mechanism that transports the projection material transported by the plurality of second projection material transport mechanisms in the horizontal direction and the third projection material transport mechanism. A first projecting material tank and a second projecting material tank for storing the projecting material, a level sensor for detecting the amount of the projecting material stored in the second projecting material tank, and a balance provided in parallel with the projector. When the detection value of the tank and the level sensor exceeds a predetermined specified value, the projection material is supplied from the first projection material tank to the balance tank, and the detection value of the level sensor is the specified value. When the value is lower than the value, the projection material is supplied from the second projection material tank to the projector, and the projection material is supplied from the balance tank to the first projection material transport mechanism. A mechanism may further include a.

According to this shot processing apparatus, when the detection value of the level sensor exceeds a predetermined value, the projection material is supplied from the first projection material tank to the balance tank. On the other hand, when the detection value of the level sensor is lower than the above-mentioned specified value, the projection material is supplied from the second projection material tank to the projector and the projection material is supplied from the balance tank to the first projection material transport mechanism. Is done. Therefore, the balance of the transport amount of the projection material can be maintained without running out of the projection material.

In one embodiment, the shot processing apparatus is provided between the plurality of second projection material conveyance mechanisms and the third projection material conveyance mechanism, and the total amount of the projection material conveyed by the second projection material conveyance mechanism. And a separator that winds and a vibrating screen that classifies a part of the projection material conveyed by the third projection material conveyance mechanism.

According to this shot processing apparatus, the separator is provided between the plurality of second projection material conveyance mechanisms and the third projection material conveyance mechanism, and the total amount of the projection material conveyed by the second projection material conveyance mechanism. Is wind-selected by this separator. Accordingly, the classification performance of the projection material can be ensured even for a work in which a large amount of burrs and fine powder is generated. Further, the separator, the vibration sieve for classifying a part of the projection material conveyed by the third projection material conveyance mechanism, the projection material stored in the balance tank and the projection material supplied from the balance tank are projected. The function of classifying the projection material can be ensured by the structure in which the material is passed again through the separator and the vibrating screen without projecting the material.

In one embodiment, the projector is rotated by an impeller that projects a projection material as it rotates, a driven pulley that is rotatably supported with respect to the cabinet, and rotates integrally with the impeller, and a drive motor. The drive pulley, the drive belt wound around the drive pulley and the driven pulley, the drive pulley rotatably supported, and the distance between the drive pulley and the driven pulley adjustable to the cabinet The rotating member is rotatably supported, and includes a telescopic mechanism that connects the rotating end of the rotating member and the cabinet, and is adjustable in length in the axial direction. May be.

According to this shot processing device, the rotation member rotates by adjusting the length of the telescopic mechanism in the axial direction, thereby adjusting the distance between the drive pulley and the driven pulley and adjusting the tension of the drive belt. can do. Therefore, in order to adjust the tension of the drive belt, for example, it is not necessary to loosen the bolt of the attachment portion of the driven pulley to the cabinet, so that workability can be improved.

In one embodiment, the partition material is connected to a pair of side wall portions facing each other and extending along a radial direction of the turntable, and ends of the pair of side wall portions on the center side of the turntable. In addition, a bottom wall portion that is inclined so as to be directed toward the center of the rotating disk as it goes from one of the pair of side wall portions to the other may be employed.

According to this shot processing apparatus, the bottom wall portion of the partition member is inclined so as to go to the center side of the turntable as it goes from one of the pair of side wall portions to the other. Therefore, even when the projection material projected by the projector from the outside in the radial direction of the rotating disk hits the bottom wall portion, the projection material can be prevented from bouncing back to the projection side. Thereby, the durability of the projector can be ensured.

As described in detail above, according to various aspects and embodiments of the present invention, the overall height of the entire apparatus can be reduced.

It is a front view of a shot processing device concerning one embodiment of the present invention. It is a side view of the shot processing apparatus shown by FIG. FIG. 2 is a rear view of the shot processing apparatus shown in FIG. 1. It is a top view of the shot processing apparatus shown by FIG. It is a figure which shows the structure of the centrifugal projector shown by FIG. 1, Comprising: (A) is a top view, (B) is a front view, (C) is a side view. It is a figure which shows the structure of the other centrifugal projector shown by FIG. 1, Comprising: (A) is a top view, (B) is a front view, (C) is a side view. It is a plane sectional view of the cabinet shown in FIG. It is a rear view of the shot processing apparatus (circulation part) shown by FIG. It is a front view which shows the modification of the shot processing apparatus which concerns on one Embodiment of this invention. FIG. 10 is a side view of the shot processing apparatus shown in FIG. 9. FIG. 10 is a rear view of the shot processing apparatus shown in FIG. 9. FIG. 10 is a plan view of the shot processing apparatus shown in FIG. 9. It is a figure which shows the structure of the centrifugal projector shown by FIG. 9, Comprising: (A) is a front view, (B) is a side view. It is a figure which shows the structure of the other centrifugal projector shown by FIG. 9, Comprising: (A) is a side view, (B) is a front view. FIG. 10 is a plan sectional view of the cabinet shown in FIG. 9.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of a shot processing apparatus 10 according to an embodiment, and FIG. 2 is a side view of the shot processing apparatus 10 shown in FIG. As shown in FIGS. 1 and 2, a shot processing apparatus 10 according to an embodiment of the present invention includes a cabinet 12. FIG. 7 is a plan sectional view of the cabinet 12. As shown in FIG. 7, the cabinet 12 is formed in a box shape having a pentagonal cross section. Inside the cabinet 12, a work carry-in area 14 for carrying in the work W, a work carry-out area 16 for carrying out the work W, and a projection material projection area for projecting a projection material onto the work W 18A to 18D are provided.

A rotary hanger 20 is provided at the center of the cabinet 12. As shown in FIG. 1, the rotary hanger 20 is rotated by a revolution drive motor 24 around a revolution shaft 22 extending in the vertical direction.

The revolution shaft 22 is provided with a revolution index device 26 and a torque limiter 28. The revolution shaft 22 is rotatably supported by the upper bearing 30 and the lower bearing 32.

As shown in FIG. 7, the rotary hanger 20 is provided inside the cabinet 12 so as to be rotatable in the horizontal direction, and provided on the turntable 34. 34 and a plurality of partition members 36 divided into a plurality of portions in the circumferential direction.

The partition member 36 has a pair of side wall portions 38 and a bottom wall portion 40. The pair of side wall portions 38 face each other and extend along the radial direction of the rotating disk 34. The bottom wall portion 40 connects the ends of the pair of side wall portions 38 on the center side of the turntable 34 and is inclined so as to go to the center side of the turntable 34 from one side of the pair of side wall portions 38 toward the other side. ing.

Then, the rotary hanger 20 is rotated by the revolution drive motor 24 (see FIG. 1), so that the plurality of rooms 42 partitioned by the plurality of partition members 36 described above become the workpiece carry-in area 14, the workpiece carry-out area 16, and The projection material is sequentially moved to the projection material projection areas 18A to 18D.

That is, the room 42 located in the work carry-in area 14 among the plurality of rooms 42 is a work carry-in room, and the room 42 located in the work carry-out area 16 among the plurality of rooms 42 is a work carry-out room. . Of the plurality of rooms 42, the room 42 located in the projection material projection areas 18A to 18D is a projection room. As described above, the plurality of chambers 42 are sequentially switched to the workpiece loading chamber, the workpiece loading chamber, and the projection chamber by rotating the rotary hanger 20.

In the present embodiment, the workpiece W is, for example, a forged product, a press-formed product, a welded structure, or the like, and specifically, an automobile-related part.

In addition, in each of the plurality of rooms 42 partitioned by the plurality of partition members 36, as shown in FIG. 1, hangers (not shown) for suspending and holding the cage 44 into which the workpiece W is inserted are respectively provided. Is provided. The work W may be directly held on the hanger.

A rotation shaft 46 is provided on the upper portion of the cage 44. A rotating chain wheel (not shown) provided above the rotary hanger 20 is connected to the rotating shaft 46, and the rotating chain wheel is connected to the above-described projection material projection areas 18A to 18D (see FIG. 7). Only when it is positioned at either position, it is rotated by the rotation drive motor 48.

As a result, the hangers provided in the room 42 (that is, the room 42 set as the projection room) located in the projection material projection areas 18A to 18D among the plurality of rooms 42 are rotated. Further, the above-described rotation chain wheel is switched between the state connected to the rotation drive motor 48 and the state released from the connection with the rotation drive motor 48 by the connection drive cylinder 50 or the like.

Further, as shown in FIG. 7, the projection material is projected onto the side wall of the cabinet 12 from the outside in the radial direction of the turntable 34 to the room 42 located in the projection material projection areas 18A to 18D among the plurality of rooms 42. Then, centrifugal projectors 52A to 52D are provided as a plurality of projectors that perform shot processing on the workpiece W.

FIG. 5 is a diagram showing the configuration of the centrifugal projector 52A, where (A) is a plan view, (B) is a front view, and (C) is a side view. As shown in FIG. 5, the centrifugal projector 52 A includes an impeller 54, a driven pulley 56, a driving pulley 58, a driving belt 60, a rotating member 62, an expansion / contraction mechanism 64, and a driving motor 66. The impeller 54 has a plurality of blades and is configured to project a projection material as it rotates. The driven pulley 56 is rotatably supported with respect to the cabinet 12 and is rotated integrally with the impeller 54. The drive pulley 58 is rotated by a drive motor 66, and the drive belt 60 is wound around the drive pulley 58 and the driven pulley 56.

Rotating member 62 is formed in a plate shape and supports drive pulley 58 to be rotatable. Further, one end side of the rotating member 62 is rotatably connected to the impeller base door. As a result, the distance between the drive pulley 58 and the driven pulley 56 can be adjusted as the rotation member 62 rotates.

Further, the telescopic mechanism 64 connects the rotating end of the rotating member 62 and the impeller base door. The expansion / contraction mechanism 64 has a bolt and a nut, and the length can be adjusted in the axial direction by turning the bolt. The other centrifugal projectors 52B to 52D have the same configuration as the centrifugal projector 52A (see, for example, FIG. 6).

As shown in FIG. 1, lower screw conveyors 68 A and 68 B as first projecting material transport mechanisms are provided at the lower part of the cabinet 12. The

lower screw conveyors

68A and 68B are arranged along the horizontal direction, collect the projection material dropped from the room 42 which is the projection chamber among the plurality of rooms 42, and convey the projection material in the horizontal direction.

3 is a rear view of the shot processing apparatus 10, FIG. 4 is a plan view of the shot processing apparatus 10, and FIG. 8 is a rear view of a circulation portion of the shot processing apparatus 10. As shown in FIG. 3, lower ends of bucket elevators 70 A and 70 B as second projection material transport mechanisms are connected to the tips of the lower screw conveyors 68 A and 68 B. The

bucket elevators

70A and 70B are arranged along the vertical direction, and convey the projection material conveyed by the

lower screw conveyors

68A and 68B upward.

The

upper screw conveyors

74A and 74B as third projecting material transport mechanisms are connected to the upper portions of the

bucket elevators

70A and 70B via

separators

72A and 72B. The

upper screw conveyors

74A and 74B are arranged along the horizontal direction and convey the projection material conveyed by the

bucket elevators

70A and 70B in the horizontal direction.

The first to fourth projecting material transport paths are connected to the

upper screw conveyors

74A and 74B in order from the upstream side to the downstream side. As shown in FIG. 2, the first projecting material transport path supplies the projecting material to the balance tank 76, and includes a projecting material tank 78 A, a flow rate adjusting device 80 A, and an introduction pipe as the first projecting material tank. 82A. The second projecting material transport path supplies the projecting material to the inclined vibrating

screens

84A and 84B (see FIG. 3) as vibrating screens, and is configured by the projecting material tank 78B, the flow rate adjusting device 80B, and the introduction pipe 82B. Has been.

Further, the third projecting material conveyance path is for supplying the projecting material to the centrifugal projector 52C, and is constituted by a projecting material tank 78C, a flow rate adjusting device 80C, and an introduction pipe 82C. The fourth projecting material transport path supplies the projecting material to the centrifugal projector 52D, and includes a projecting material tank 78D as a second projecting material tank, a flow rate adjusting device 80D, and an introduction pipe 82D. The first to fourth projecting material transport paths are provided in parallel.

Further, the projection material tank 78D is provided with a level sensor 86 for detecting the amount of the projection material stored in the projection material tank 78D.

Furthermore, a projecting material tank 78E is provided at the downstream end of the upper screw conveyor 74B, and the projecting material supplied from the projecting material tank 78E returns to the cabinet 12 after flowing to the overflow pipe 88, and again, It flows to the lower screw conveyor 68B which is the beginning of the circulation system.

The

separators

72A and 72B shown in FIG. 3 perform wind selection on the total amount of the projection material conveyed by the

bucket elevators

70A and 70B. That is, the

separators

72A and 72B separate fine powder in the air by sucking air. The separators 72 A and 72 B are provided with ducts 90, respectively. Air and fine powder flow through the duct 90 and are separated into fine powder and coarse powder in the settling chamber 92.

Also, finer fine powder enters the dust collector 94 through the duct 90 along with the air. Then, only the air filtered in the dust collector 94 is exhausted into the atmosphere, and the fine powder is accumulated in a fine powder receiving box 96 provided under the dust collector 94. The coarse powder separated in the settling chamber 92 is conveyed to the lower screw conveyor 68B.

Further, when the detection value of the level sensor 86 is higher than a predetermined value, that is, when there is sufficient circulation system projection material, the projection material is transferred from the projection material tank 78A to the balance tank 76. The flow rate adjusting devices 80A to 80D as switching mechanisms are controlled so as to be supplied.

On the other hand, when the detection value of the level sensor 86 is lower than the above-mentioned specified value, the projection material is supplied from the projection material tank 78D to the centrifugal projector 52D and the projection material is supplied from the balance tank 76 to the lower screw conveyor 68B. Thus, the flow rate adjusting devices 80A to 80D are controlled.

Of the projection material that has flowed to the

inclined vibration sieves

84A and 84B, usable projection material flows to the

lower screw conveyors

68A and 68B, and the unusable projection material is a fine powder receiving box provided under the inclined vibration sieves 84A and 84B. 96.

In addition, an intake fire prevention damper 98 and a precoat supply duct 100 are provided on the way from the duct 90 to the dust collector 94. A precoat supply device 102 is connected to the precoat supply duct 100. And by these, combustible dust is pre-coated and made hard to burn.

Also, the dust collector 94 is provided with a dust collector fan 104 and an exhaust fire prevention damper 106. The exhaust fire damper 106, together with (in cooperation with) the intake fire damper 98, shuts off the air flow when a fire occurs. The rotary valve 108 to the dust collector 94 plays a role of continuously discharging dust. Reference numeral 114 denotes a control panel.

Next, the operation of the shot processing apparatus 10 configured as described above will be described.

First, one or more workpieces W are inserted into the cage 44 of the room 42 located in the workpiece carry-in area 14 among the plurality of rooms 42. Then, the revolution drive motor 24 is actuated, the rotary hanger 20 is rotated 60 degrees around the revolution shaft 22, and the workpiece W is moved to the projection material projection area 18A.

Next, the connection drive cylinder 50 is operated, and a rotation chain wheel (not shown) corresponding to the room 42 moved to the projection material projection area 18 A is connected to the rotation drive motor 48. When the rotation driving motor 48 is driven, the rotation shaft 46 is rotated via the rotation chain wheel.

Further, the flow rate adjusting devices 80C to 80F are opened, and the projection material is projected from the centrifugal projector 52A, so that the work W disposed on the upper portion of the cage 44 is intensively polished.

Next, the revolution drive motor 24 is operated, the rotary hanger 20 is rotated 120 degrees around the revolution axis 22, and the room 42 moved to the projection material projection area 18B is set as a projection chamber. Then, the connection drive cylinder 50 is operated, and a rotation chain wheel (not shown) corresponding to the chamber 42 is connected to the rotation drive motor 48. When the rotation driving motor 48 is driven, the rotation shaft 46 is rotated via a rotation chain wheel (not shown).

Also, the projecting material is projected from the centrifugal projector 52B, so that the work W disposed in the lower portion of the cage 44 is intensively cleaned. Similarly, the projecting material is projected from the centrifugal projector 52 C, so that the work W disposed at the lower portion of the cage 44 is intensively cleaned.

Finally, by projecting the projection material from the centrifugal projector 52D, the work W arranged on the upper portion of the cage 44 is intensively cleaned in the room 42 moved to the projection material projection area 18D.

Then, the revolution drive motor 24 is operated, the rotary hanger 20 is rotated 300 degrees around the revolution shaft 22, and the workpiece W is carried to the workpiece carry-out area 16 and taken out. Further, the revolution drive motor 24 is operated, the rotary hanger 20 is rotated 360 degrees around the revolution shaft 22, and the workpiece W is loaded again.

By repeating the above series of steps continuously, a number of workpieces W are sequentially polished.

Next, the operation and effect of one embodiment of the present invention will be described.

As described above in detail, according to the shot processing apparatus 10 according to the embodiment of the present invention, since the plurality of

bucket elevators

70A and 70B that transport the projection material upward are provided, each

bucket elevator

70A and 70B is provided. The size can be reduced in the height direction. Thereby, the overall height of the entire apparatus can be lowered.

When the detection value of the level sensor 86 exceeds a predetermined specified value, the projection material is supplied from the projection material tank 78A to the balance tank 76, but the detection value of the level sensor 86 is the above-mentioned specified value. When the value is lower, the projection material is supplied from the projection material tank 78D to the centrifugal projector 5252D and the projection material is supplied from the balance tank 76 to the

lower screw conveyors

68A and 68B. Therefore, the balance of the transport amount of the projection material can be maintained without running out of the projection material.

In addition,

separators

72A and 72B are provided between the

bucket elevators

70A and 70B and the

upper screw conveyors

74A and 74B. The total amount of the projection material conveyed by the

bucket elevators

70A and 70B is the separator 72A, Wind is selected by 72B.

Therefore, the classification performance of the projection material can be secured even for the workpiece W where a lot of burrs and fine powders are generated. Further, the

separators

72A and 72B, the inclined vibrating

screens

84A and 84B for classifying a part of the projection material conveyed by the

upper screw conveyors

74A and 74B, the storage of the projection material in the balance tank 76 and the balance tank. By supplying the projection material from 76, the projection material is not projected, and the structure through which the projection material is again passed through the

separators

72A and 72B and the

inclined vibration sieves

84A and 84B can ensure the classification function of the projection material.

Further, by adjusting the length of the telescopic mechanism 64 in the axial direction, the rotating member 62 is rotated, thereby adjusting the distance between the driving pulley 58 and the driven pulley 56 and adjusting the tension of the driving belt 60. be able to. Accordingly, in order to adjust the tension of the drive belt 60, for example, it is not necessary to loosen the bolt of the attachment portion of the driven pulley 56 to the impeller base door, so that workability can be improved.

Further, the bottom wall portion 40 of the partition member 36 is inclined so as to be directed toward the center side of the turntable 34 from one side of the pair of side wall portions 38 toward the other side. Therefore, even when the projection material projected by the projector from the outside in the radial direction of the turntable 34 hits the bottom wall portion 40, the projection material can be prevented from bouncing back to the projection side. Thereby, the durability of the projector can be ensured.

In the present embodiment, the shot processing apparatus 10 is an example, and the form thereof can be variously changed. 9 to 15 show a shot processing apparatus 110 according to a modification.

The basic configuration of the shot processing apparatus 110 is the same as that of the shot processing apparatus 10 according to the embodiment of the present invention described above. Here, in the shot processing apparatus 110, the same reference numerals are used for members having the same functions as those of the shot processing apparatus 10 according to the embodiment of the present invention described above, and the description thereof is omitted.

Reference numerals

84 and 112 shown in FIGS. 9 to 15 are a vibration inclined sieve and a hanger (hook), respectively.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

DESCRIPTION OF SYMBOLS 10,110 ... Shot processing apparatus, 12 ... Cabinet, 14 ... Work carry-in area, 16 ... Work carry-out area, 18A-18D ... Projection material projection area, 20 ... Rotary hanger, 22 ... Revolving shaft, 24 ... Revolution drive motor, 34 DESCRIPTION OF SYMBOLS ... Rotary plate 36 ... Partition material 38 ... Side wall part 40 ... Bottom wall part 42 ... Room 44 ... Cage 46 ... Spinning shaft 48 ... Spinning drive motor 52A-52D ... Centrifugal projector 54 ... Impeller 56 ... driven pulley, 58 ... drive pulley, 60 ... drive belt, 62 ... rotating member, 64 ... telescopic mechanism, 66 ... drive motor, 68A, 68B ... lower screw conveyor (first projection material transport mechanism), 70A, 70B ... Bucket elevator (second projection material conveyance mechanism), 72A, 72B ... Separator, 74A, 74B ... Upper screw conveyor (third projection material conveyance mechanism), 6 ... Balance tank, 78A ... Projection material tank (first projection material tank), 78D ... Projection material tank (second projection material tank), 80A-80D ... Flow rate adjusting device (switching mechanism), 84A, 84B ... Inclined vibration sieve (Vibrating sieve), 86... Level sensor, W.

Claims

A cabinet formed in a box shape and having a projection material projection area inside,
A turntable disposed rotatably in the horizontal direction inside the cabinet; and a plurality of partition members provided on the turntable and dividing a space on the turntable into a plurality of circumferential directions of the turntable. A rotary hanger having a plurality of hangers provided in each of a plurality of rooms partitioned by the plurality of partition members and suspending and holding a work or a cage into which the work is inserted,
A revolving drive motor that rotates the rotary hanger to sequentially move the plurality of rooms to a projection material projection area in the cabinet;
A rotation drive motor for rotating a hanger provided in a room located in the projection material projection area among the plurality of rooms;
A projector for projecting a projection material onto a room located in the projection material projection area among the plurality of rooms from the outside in the radial direction of the rotating disk, and shot processing the workpiece;
A first projection material transport mechanism for collecting and transporting the projection material projected from the projector in the horizontal direction;
A plurality of second projection material conveyance mechanisms for conveying the projection material conveyed by the first projection material conveyance mechanism upward;
A shot processing apparatus comprising:
A third projection material conveyance mechanism for conveying the projection material conveyed by the plurality of second projection material conveyance mechanisms in the horizontal direction;
A first projection material tank and a second projection material tank for storing the projection material conveyed by the third projection material conveyance mechanism;
A level sensor for detecting the amount of projection material stored in the second projection material tank;
A balance tank provided in parallel with the projector;
When the detection value of the level sensor exceeds a predetermined specified value, the projection material is supplied from the first projection material tank to the balance tank, and the detection value of the level sensor falls below the specified value. A switching mechanism for supplying the projection material from the second projection material tank to the projector and supplying the projection material from the balance tank to the first projection material transport mechanism;
The shot processing apparatus according to claim 1, comprising:
A separator that is provided between the plurality of second projection material conveyance mechanisms and the third projection material conveyance mechanism, and wind-selects the total amount of the projection material conveyed by the second projection material conveyance mechanism;
A vibrating sieve for classifying a part of the projection material conveyed by the third projection material conveyance mechanism;
The shot processing apparatus according to claim 2, further comprising:
The projector is
An impeller for projecting a projection material with rotation,
A driven pulley rotatably supported with respect to the cabinet and rotated integrally with the impeller;
A drive pulley rotated by a drive motor;
A drive belt wound around the drive pulley and the driven pulley;
A rotation member that rotatably supports the drive pulley and is rotatably supported by the cabinet so that a distance between the drive pulley and the driven pulley can be adjusted;
An extension mechanism that connects the rotation end of the rotation member and the cabinet and is adjustable in length in the axial direction.
The shot processing apparatus according to any one of claims 1 to 3.
The partition material is
A pair of side wall portions facing each other and extending along the radial direction of the rotating disk;
A bottom wall portion that connects the end portions of the pair of side wall portions on the center side of the turntable, and that inclines toward the center side of the turntable as it goes from one of the pair of side wall portions to the other; Have
The shot processing apparatus according to any one of claims 1 to 3.