JP2014176903A - Shot treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shot treatment device by which a total time for treatment can be shortened.SOLUTION: A rotating shaft member 46 provided at a ceiling portion 14U of a rotary 14 suspends and supports objects W to be treated in treatment chambers R1, and can revolve by rotation of the rotary 14 around a shaft line in a vertical direction of a device by a rotation drive mechanism 60 and rotate in a projection area 40B. The rotary 14 is halted by the rotation drive mechanism 60 at three positions of the projection area 40B as a position at which revolving of the objects W to be treated is stopped. Further, in the treatment chambers R1 are arranged side by side three chambers in the circumferential direction of the rotary 14. When the rotary 14 is halted at the position to stop the revolving, where projection is applied to the objects W to be treated, one chamber of the treatment chambers R1 is arranged in a carry-in area 40A and another chamber of the treatment chambers R1 is arranged in a carry-out area 40C.

Description

  The present invention relates to a shot processing apparatus that rotates and displaces an object to be processed by a rotary and projects a projection material onto the object to be processed.

  In the shot processing apparatus, there is an apparatus having a configuration in which a projection material is projected onto an object to be processed that is hung on a hanger, and the hanger rotates and rotates in a projection area.

JP-A-9-76157

  However, since it takes a certain amount of time to accurately perform shot processing on the entire object to be processed with such an apparatus, there is room for improvement in terms of reducing the total processing time.

  An object of the present invention is to obtain a shot processing apparatus capable of reducing the total processing time in consideration of the above facts.

  The shot processing apparatus according to the first aspect of the present invention is rotatably provided around an axis in the vertical direction of the apparatus, and a plurality of processing chambers are arranged in the circumferential direction by partitioning a space around the axis into partitions. In addition to being arranged in parallel, the processing chamber is formed with an opening that opens toward the outer peripheral side and is used to carry in the object to be processed, to carry out the object to be processed, and to pass the projection material. A rotary, a projector for projecting a projection material into the processing chamber through the opening in the processing chamber, and a ceiling provided on the rotary to support the object to be processed suspended in the processing chamber A suspension support part capable of rotating in a projection area where the object to be processed is projected by the projector, and the suspension support part revolves by rotating the rotary around the axis, and the projection area Double Position; and a rotary drive mechanism for stopping the primary the rotary as revolving stop position of the object to be processed.

  According to the shot processing apparatus of the present invention described in claim 1, the rotary is provided so as to be rotatable around an axis in the vertical direction of the apparatus, and a plurality of processes are performed by partitioning a space around the axis into partitions. The chambers are arranged side by side in the circumferential direction, and the processing chamber is opened toward the outer peripheral side, and an opening is formed for loading the object to be processed, for discharging the object to be processed, and for passing the projection material. Has been. On the other hand, a projector projects a projection material into the inside of a process chamber through the opening part in a process chamber. In addition, the suspension support unit is provided on the ceiling of the rotary to support the object to be processed in a processing chamber, and is capable of rotating in a projection area where the object to be processed is projected by the projector. . For this reason, a to-be-processed target object is projected over the perimeter. The rotation drive mechanism revolves the suspension support part by rotating the rotary around the vertical axis of the apparatus, and temporarily stops the rotary with a plurality of positions in the projection area as the revolution stop positions of the object to be processed. . For this reason, since the method of hitting the projection material is relatively changed at a plurality of revolution stop positions, the object to be processed is projected more uniformly and accurately.

  A shot processing apparatus according to a second aspect of the present invention is the shot processing apparatus according to the first aspect, wherein the revolving stop position of the object to be processed in the projection area is the rotation axis of the suspension support portion in plan view of the apparatus. Is a second position that is a position disposed on the center line in the projection direction of the projection material in the projector, a first position that is a position upstream of the second rotation direction with respect to the second position, and the first position And a third position which is a position downstream of the rotary in the rotational direction with respect to the two positions.

  According to the shot processing apparatus of the present invention described in claim 2, the object to be processed that has entered the projection area is revolved and stopped in the order of the first position, the second position, and the third position. Projected while spinning. Here, the second position is a position where the axis of rotation of the suspension support part is arranged on the center line in the projection direction of the projection material in the projector in plan view of the apparatus, and the first position is the second position The third position is a position on the downstream side in the rotational direction of the rotary with respect to the second position. For this reason, a to-be-processed target object is efficiently and uniformly projected by the 2nd position where a projection material hits efficiently, and the 1st, 3rd position before and behind that.

  A shot processing apparatus according to a third aspect of the present invention is the shot processing apparatus according to the first or second aspect, wherein the carry-in area for hanging and supporting the object to be treated on the suspension support portion, An unloading area for lowering the object to be processed from the suspension support part, and three or more processing chambers are arranged in the circumferential direction of the rotary, and the revolution stop position of the object to be processed When the rotary is temporarily stopped, at least one of the processing chambers is disposed in the carry-in area and at least one other of the processing chambers is disposed in the carry-out area. Has been.

  According to the shot processing apparatus of the present invention as set forth in claim 3, the carry-in area is an area for hanging and supporting the object to be processed on the suspension support part, and the carry-out area is the object to be processed. It is an area for lowering from the suspension support part. Three or more processing chambers are arranged in the circumferential direction of the rotary, and at least one of the processing chambers is arranged in the carry-in area when the rotary is temporarily stopped at the revolution stop position of the object to be processed. At least one other of the processing chambers is disposed in the carry-out area. For this reason, while the projection is performed on the object to be processed in the projection area, the object to be processed is suspended and supported by the suspension support portion in the carry-in area, and at the same time, the object to be treated is suspended and supported in the carry-out area. Can be taken off from the department. In this way, since the carry-out and carry-in can be performed simultaneously in different areas during projection, the time required for carry-in / out is reduced compared to a configuration in which carry-out and carry-in are performed in one area, for example. The

  A shot processing apparatus according to a fourth aspect of the present invention is the shot processing apparatus according to any one of the first to third aspects, wherein the projector is disposed on a side of the upper part of the rotary, The first projector is set so that the center line of the projection direction is inclined to the lower side of the apparatus toward the inside of the processing chamber, and is arranged on the side of the lower part of the rotary, and the projection direction of the projection material The center line is set to incline toward the upper side of the apparatus toward the inside of the processing chamber, and the projection amount per unit time of the projection material is set to be larger than that of the first projector. And a projector.

  According to the shot processing apparatus of the present invention described in claim 4, the first projector is disposed on the upper side of the rotary, and the center line in the projection direction of the projection material is directed toward the inner side of the processing chamber. It is set to incline to the side. On the other hand, the second projector is arranged on the lower side of the rotary, and is set so that the center line in the projection direction of the projection material is inclined toward the upper side of the apparatus toward the inside of the processing chamber. As described above, the projection material is projected from both the obliquely upper side and the obliquely lower side to the object to be processed, so that the object is efficiently projected on the entire surface of the object to be processed. Moreover, since the projection amount of the projection material per unit time of the second projector is set to be larger than that of the first projector, even if the projection material is decelerated by the oblique upward projection, the first projector Shot processing equivalent to shot processing by obliquely downward projection is performed.

  According to a fifth aspect of the present invention, there is provided the shot processing apparatus according to the fourth aspect of the invention, wherein a center line of the projection direction of the projection material in the first projector and a projection direction of the projection material in the second projector. The center line is set so as not to intersect at least in the space on each projection position side with respect to the lower extension line of the rotation axis of the suspension support portion.

  According to the shot processing device of the present invention described in claim 5, at least the center line of the projection direction of the projection material in the first projector and the center line of the projection direction of the projection material in the second projector are suspended. The projection material projected from the first projector and the projection material projected from the second projector are set so as not to intersect in the space on each projection position side from the lower extension line of the support shaft. Can be prevented from interfering with each other before reaching the object to be processed. For this reason, the projection efficiency is improved.

  As described above, the shot processing apparatus according to the present invention has an excellent effect that the total processing time can be shortened.

1 is a front view showing an overall configuration of a shot blasting apparatus according to a first embodiment of the present invention. 1 is a left side view showing an overall configuration of a shot blasting apparatus according to a first embodiment of the present invention. 1 is a plan view showing an overall configuration of a shot blasting apparatus according to a first embodiment of the present invention. It is a typical top view which shows the revolution stop position of the to-be-processed target object in a projection area. 4A shows the first position, FIG. 4B shows the second position, and FIG. 4C shows the third position. It is a schematic block diagram of apparatus plan view for demonstrating control etc. of the shot blasting apparatus which concerns on the 1st Embodiment of this invention. It is a typical perspective view which shows schematic structure of the rotary of the shot blasting apparatus which concerns on the 1st Embodiment of this invention, and its peripheral part. It is a front view which shows the whole structure of the shot blasting apparatus which concerns on the 2nd Embodiment of this invention. It is a right view which shows the whole structure of the shot blasting apparatus which concerns on the 2nd Embodiment of this invention. It is a top view which shows the whole structure of the shot blasting apparatus which concerns on the 2nd Embodiment of this invention. It is sectional drawing of planar view which shows the structure of the process chamber in the 2nd Embodiment of this invention. It is a top view which shows the structure of the modification of the 2nd Embodiment of this invention. 11A is the first modification, FIG. 11B is the second modification, FIG. 11C is the third modification, FIG. 11D is the fourth modification, and FIG. (E) shows a fifth modification, and FIG. 11 (F) shows a sixth modification. It is a front view which shows the whole structure of the shot blasting apparatus which concerns on the 3rd Embodiment of this invention. It is a right view which shows the whole structure of the shot blasting apparatus which concerns on the 3rd Embodiment of this invention. It is a top view which shows the whole structure of the shot blasting apparatus which concerns on the 3rd Embodiment of this invention. It is a front view which shows the whole structure of the shot blasting apparatus which concerns on the 4th Embodiment of this invention. It is a right view which shows the whole structure of the shot blasting apparatus which concerns on the 4th Embodiment of this invention. It is a top view which shows the whole structure of the shot blasting apparatus which concerns on the 4th Embodiment of this invention.

[First Embodiment]
A rotary hanger type shot blasting apparatus 10 as a shot processing apparatus according to a first embodiment of the present invention will be described with reference to FIGS. Note that an arrow FR shown as appropriate in these drawings indicates the front side of the apparatus front view of FIG. 1, an arrow UP indicates the upper side of the apparatus, and an arrow LH indicates the left side of the apparatus front view of FIG. ing. An arrow X indicates the conveyance direction of the workpiece W.

  FIG. 1 is a front view showing the overall configuration of the shot blasting apparatus 10 according to the first embodiment of the present invention, and FIG. 2 is a left side view showing the overall configuration of the shot blasting apparatus 10. FIG. 3 is a plan view showing the overall configuration of the shot blasting apparatus 10.

  The shot blasting apparatus 10 according to the present embodiment is an apparatus that is applied, for example, to scale down a forged product. More specifically, for example, automobile-related parts such as forged products, pressed products, welded structures, and heat treated parts (for example, gears) are applied to the object to be processed W.

  As shown in FIGS. 1 to 3, the shot blasting apparatus 10 includes a cabinet 12. The cabinet 12 is formed in a hollow substantially heptagonal prism shape. Further, as shown in FIG. 3, the cabinet 12 carries the workpiece W into the workpiece 12 (see arrow A direction) and the workpiece W (see arrow B direction). For this purpose, a carry-out port 12B is formed.

  A substantially cylindrical rotary 14 is arranged at the center in the cabinet 12. As will be described in detail later, the rotary 14 is connected to a rotational drive mechanism 60 so as to be rotationally driven around an axis in the vertical direction of the apparatus.

  FIG. 6 is a schematic perspective view showing a schematic configuration of the rotary 14 and its peripheral part. As shown in FIG. 6, in the rotary 14, the top plate member 15 </ b> A and the bottom plate member 15 </ b> B are connected in the vertical direction of the apparatus by a plurality of column members 15 </ b> C, 15 </ b> D, 15 </ b> E. The plurality of column members 15 </ b> C, 15 </ b> D, and 15 </ b> E are arranged around the rotation center of the rotary 14. That is, three bent plate-like column members 15C opened to the outer peripheral side are arranged at intervals in the circumferential direction, and corner portions on the inner peripheral side of adjacent column members 15C are connected to each other. Further, end portions on the outer peripheral side of adjacent column members 15C are connected by a column member 15E for an outer wall.

  The column member 15E includes an outer peripheral wall 14W having the axis of the revolution shaft portion 62 as the center of the arc in the apparatus plan view. The outer peripheral wall 14 </ b> W is disposed at a position surrounding a space around an axis in the vertical direction of the apparatus that is the rotation center of the rotary 14. Moreover, in the space inside the outer peripheral wall 14W, a plurality of (three chambers in this embodiment) processing is performed by partitioning into the partitioning portion 16 (the portion formed by the bent plate-like column member 15C (partition member) described above). Chamber R1 is arranged in the circumferential direction. The processing chamber R1 is a room for carrying in / out the workpiece W and projecting the projection material. In these processing chambers R1, an opening 14A that opens toward the outer peripheral side is formed by the bent plate-like column member 15C, the top plate member 15A, and the bottom plate member 15B described above. The opening 14A is used for carrying in the workpiece W, carrying out the workpiece W, and passing the projection material. As is clear from the above description and FIG. 6, the partitioning portion 16 is provided on the lower side of the ceiling portion 14 </ b> U in the rotary 14. However, in FIG. It is shown as a solid line, not a hidden line.

  Here, a supplementary explanation of the processing chamber R1 will be described. The processing chamber R1 shown in FIG. 6 is disposed in the internal space of the cabinet 12, and the rotation displacement of the rotary 14 causes the loading chamber 18, the projection chamber 20, and the unloading chamber 22 to move. It can be any room. Here, the carry-in chamber 18 is a room that is arranged in the carry-in area 40A of the shot blasting apparatus 10 and carries in the workpiece W, and the projection chamber 20 is arranged in the projection area 40B of the shot blasting apparatus 10. Is a room where surface treatment of the object to be processed W is performed by projecting a projection material onto the object to be processed W, and the unloading chamber 22 is arranged in the unloading area 40C of the shot blasting apparatus 10 and is processed. It is a room for carrying out. In other words, for example, the processing chamber R1 that was initially the carry-in chamber 18 becomes the projection chamber 20 when the rotary 14 is rotationally displaced about its axis by a predetermined angle, and further, the rotary 14 is about its axis. The carry-out chamber 22 is formed by rotational displacement by a predetermined angle.

  The carry-in area 40A is an area for suspending and supporting the object to be processed W on a rotation shaft member 46 as a suspending support portion described later. Further, the carry-out area 40 </ b> C is an area for lowering the workpiece W from the rotation shaft member 46.

  On the other hand, a first projector 30 </ b> A is disposed on the side of the upper portion of the rotary 14, and the first projector 30 </ b> A is attached to the upper side of the side wall of the cabinet 12. On the other hand, a second projector 30 </ b> B is disposed on the lower side of the rotary 14, and the second projector 30 </ b> B is attached to the lower side of the side wall of the cabinet 12. In the present embodiment, the attachment surface to which the first projector 30A is attached and the attachment surface to which the second projector 30B is attached are set to different adjacent surfaces. In addition, the attachment part 12D to which the first projector 30A shown in FIG. 1 is attached and the attachment part 12E to which the second projector 30B is attached also serve as an inspection door that can be opened and closed during inspection.

  The first projector 30 </ b> A and the second projector 30 </ b> B are a centrifugal projector that can apply a centrifugal force to a projection material (shot, a steel ball as an example in the present embodiment) by rotation of an impeller (impeller). Has been. Then, as shown in FIG. 6, the first projector 30A and the second projector 30B project the projection material accelerated by centrifugal force into the processing chamber R1 through the opening 14A in the processing chamber R1. It has become.

  30 A of 1st projectors are set so that the centerline L1 of the projection direction of a projection material may incline to the apparatus downward side toward the inner side of process chamber R1. On the other hand, the second projector 30B is set so that the center line L2 in the projection direction of the projection material is inclined toward the upper side of the apparatus toward the inside of the processing chamber R1. Further, the center line L1 in the projection direction of the projection material in the first projector 30A and the center line L2 in the projection direction of the projection material in the second projector 30B are from the lower extension line of the rotation shaft of the rotation shaft member 46. Is set so as not to intersect in the space on the projection position side. In the figure, the range of the projection trajectory from the first and second projectors 30A and 30B is indicated by a two-dot chain line sandwiching the center lines L1 and L2.

  Furthermore, the 2nd projector 30B is set so that the projection amount per unit time of a projection material may become large compared with 30 A of 1st projectors. In this embodiment, as an example, the projection amount per unit time of the projection material in the upper first projector 30A is 300 kg / min, and the projection amount per unit time of the projection material in the lower second projector 30B is 400 kg. / Min. The adjustment of the projection amount per unit time of the projection material will be described later.

  On the other hand, a plurality of holes 14Z1 are formed in the bottom floor portion 14Z of the processing chamber R1 in order to drop the projection material projected into the processing chamber R1 to the apparatus lower side. Moreover, although illustration is abbreviate | omitted in FIG. 6, as shown in FIG. 3, the sealing member 42 is attached to the outer side of the outer peripheral wall 14W via the attachment plate. The seal member 42 is made of rubber and is provided over the entire length in the vertical direction of the outer peripheral wall 14W, and a plurality of the seal members 42 are disposed along the circumferential direction in a plan view of the apparatus, and the outer peripheral wall 14W and the inner peripheral surface of the cabinet 12 The space between them is sealed. Further, a columnar round bar (not shown) is attached to the inner peripheral side of the cabinet 12 facing the outer peripheral side of the rotary 14 with the vertical direction of the apparatus as the axial direction. A plurality of the round bars are arranged along the circumferential direction of the inner periphery of the cabinet 12, and the projecting material that is going to flow along the inner periphery of the cabinet 12 is prevented from traveling and dropped.

  As shown in FIG. 1, the first projector 30A is connected to the lower end of an introduction pipe 26A for supplying a projection material via an introduction cylinder 28A, and the flow rate of the projection material is adjusted to the upper end of the introduction pipe 26A. A flow rate adjusting device 24A is provided. Similarly, the lower end of the introduction pipe 26B for supplying the projection material is connected to the second projector 30B via the introduction cylinder 28B, and the flow rate adjusting device for adjusting the flow rate of the projection material at the upper end of the introduction pipe 26B. 24B is provided.

  The flow rate adjusting devices 24A and 24B are provided with an open / close gate, and the opening degree of the open / close gate can be adjusted. In this embodiment, when opening the opening / closing gates of the flow rate adjusting devices 24A, 24B, the gate opening degree of the opening / closing gate of the flow rate adjusting device 24B is larger than the gate opening degree of the opening / closing gate of the flow rate adjusting device 24A. Is set to Thereby, the projection amount per unit time of the projection material by the second projector 30B is set larger than the projection amount per unit time of the projection material by the first projector 30A. As shown in FIG. 5, the flow rate adjusting devices 24 </ b> A and 24 </ b> B are connected to the control unit 38, and the operation of the open / close gate (open / close and adjustment of the open / close amount) is controlled by the control unit 38.

  Further, as shown in FIG. 1, the first projector 30A is connected to the circulation device 34 via the introduction tube 28A, the introduction tube 26A, and the flow rate adjusting device 24A, and the second projector 30B is connected to the introduction tube 28B. , And the circulation device 34 through the introduction pipe 26B and the flow rate adjustment device 24B. The circulation device 34 is a device for conveying the projection material projected by the first projector 30A and the second projector 30B and circulating it to the first projector 30A and the second projector 30B.

  The circulation device 34 includes a screw conveyor 34 </ b> A at the lower portion of the cabinet 12. The screw conveyor 34A is horizontally arranged with the apparatus left-right direction as the longitudinal direction, collects the projection material falling from the projection chamber 20 (see FIG. 6), and supplies the projection material to the predetermined direction along the longitudinal direction of the screw conveyor 34A. It is transported in the direction (right side of the apparatus in this embodiment). A lower end portion side of a bucket elevator 34B extending in the vertical direction of the apparatus is disposed on the downstream side in the conveying direction of the screw conveyor 34A (the apparatus right side in FIG. 1).

  As shown in FIG. 2, the bucket elevator 34B has a known structure, and thus a detailed description thereof is omitted. However, an endless belt 34B2 is wound around a pulley 34B1 disposed at the upper part and the lower part of the shot blasting apparatus 10, and the endless belt 34B1 is also endless. A number of buckets 34B3 are attached to the belt 34B2. The pulley 34B1 is connected to a driving motor 34C (see FIG. 1) and can be driven to rotate. As a result, the bucket elevator 34B scoops up the projection material collected by the screw conveyor 34A with the bucket 34B3 and rotates the pulley 34B1 with the drive motor 34C (see FIG. 1), thereby removing the projection material in the bucket 34B3 from the cabinet. 12 is conveyed toward the upper side.

  The upper part of the bucket elevator 34B is connected to a screw conveyor 34E via a chute 34D. The stand 36 on the right side of the apparatus shown in FIG. 1 is a stand that serves as a scaffold for the operator when checking the upper portion of the bucket elevator 34B and the screw conveyor 34E. As shown in FIG. 1, the screw conveyor 34E is arranged horizontally and has the left-right direction of the apparatus as the longitudinal direction, and the projection material thrown from the upper part of the bucket elevator 34B through the chute 34D is longitudinal direction of the screw conveyor 34E. Is conveyed in a predetermined direction (in this embodiment, the left side of the apparatus).

  Projection material tanks 34F and 34G are provided below the intermediate portion in the longitudinal direction of the screw conveyor 34E at positions where the projection material from the screw conveyor 34E can flow. The projecting material tanks 34F and 34G are tanks for supplying the projecting material conveyed by the screw conveyor 34E to the flow rate adjusting devices 24A and 24B. The projecting material tank 34F is disposed on the upper side of the flow rate adjusting device 24A. The material tank 34G is disposed above the flow rate adjusting device 24B.

  On the other hand, the upper end of the overflow pipe 34H is provided at the end of the screw conveyor 34E on the downstream side in the transport direction. A wind-selective separator 34I is attached to the lower end of the overflow pipe 34H. Separator 34I classifies the foreign matter from the projection material by sorting the powder material containing the injected projection material into an air current by applying it to the light weight and the falling heavy material.

  A settling chamber 34J communicating with the separator 34I is attached to a side surface portion of the separator 34I. The settling chamber 34J is connected to a dust collector (not shown) through a duct 34K, and includes a guide plate 34J1 that hangs down from the upper wall side of the chamber in a passage inside the settling chamber 34J (between the separator 34I side and the duct 34K side). Yes. Thus, the settling chamber 34J causes the guide plate 34J1 to generate a detour flow by the guide plate 34J1 to the air sucked by the suction means (blower) of the dust collector, and also causes the particles (foreign matter) in the sucked air to flow by the detour flow. It comes to be separated by.

  The duct 34K is configured to circulate air containing fine powder. The dust collector connected to the duct 34K filters the air containing fine powder and exhausts only the air into the atmosphere. It accumulates in a fine powder receiving box (not shown) on the lower side.

  The lower part of the settling chamber 34J communicates with the inclined sieve 34L, and the coarse powder separated from the foreign matter in the settling chamber 34J is sieved (classified) by the inclined sieve 34L. Further, the inclined sieve 34L communicates with the inside of the cabinet 12 (near the upstream side of the screw conveyor 34A) via the projection material return chute 34M. The projection material that can be used after being screened by the inclined screen 34L returns to the inside of the cabinet 12 through the projection material return chute 34M and is used in a circulating manner.

  The lower portion of the settling chamber 34J communicates with the fine powder discharge chute 34N, and a fine powder receiving box 34P is disposed below the fine powder discharge chute 34N. Thereby, the fine powder separated in the settling chamber 34J is discharged to the fine powder receiving box 34P through the fine powder discharge chute 34N.

  Next, a mechanism for revolving and rotating the workpiece W shown in FIG. 2 will be described. As shown in FIG. 2, a rotation shaft member 46 is provided on the ceiling portion 14 </ b> U of the rotary 14. The lower portion of the rotation shaft member 46 is disposed in the processing chamber R1 and supports the workpiece W to be suspended in the processing chamber R1 via the cage 44. By arranging the workpiece W in the cage 44, the fall of the workpiece W and the scratch of the workpiece W are prevented. The rotation axis of the rotation shaft member 46 that rotates the cage 44 and the rotation center of the cage 44 in plan view are set so as to be concentric in plan view of the apparatus (not shown). 2 shows a state where the cage 44 on the left side is removed from the rotation shaft member 46.

  The cabinet 12 is provided with a rotation drive mechanism 60. The rotation drive mechanism 60 includes a revolution shaft portion 62, a revolution wheel 64, and a revolution drive motor 66, and revolves the rotation shaft member 46 by rotating the rotary 14 about the vertical axis of the apparatus. It has become.

  The revolving shaft portion 62 is attached to the center portion of the ceiling portion 14U of the rotary 14 and is disposed on the upper side of the rotary 14 with the device vertical direction as the axial direction. The part 70 is penetrated. The revolution wheel 64 is coaxially connected to the upper end portion of the revolution shaft portion 62 and is driven to rotate by a revolution drive motor 66. In other words, the revolution shaft portion 62 is configured to rotate around an axis in the vertical direction of the apparatus by the operation of the revolution drive motor 66. As shown in FIG. 5, the revolution drive motor 66 (illustrated in block form in FIG. 5) is connected to the control unit 38, and the operation is controlled by the control unit 38.

  Further, the rotation drive mechanism 60 is used for revolving lock, a recess 14X formed at a predetermined position on the outer peripheral surface of the rotary 14, and a lock cylinder 72A (schematically shown in the drawing) disposed to face the outer peripheral surface of the rotary 14. Are shown). In the present embodiment, three recesses 14X are continuously formed at adjacent positions in the circumferential direction of the rotary 14 to form a recess group, and the recess groups are arranged at a total of three locations at equal intervals in the circumferential direction of the rotary 14. Is formed. The lock cylinder 72A is a known air cylinder, and is extendable between a position where the rod 72A1 fits inside the recess 14X and a position away from the outer peripheral surface of the rotary 14.

  The lock cylinder 72A is connected to an air supply source 72C via an air direction control device (electromagnetic valve or the like) 72B shown as a block, and the air direction control device 72B is connected to the control unit 38. . The control unit 38 controls the direction of expansion and contraction of the rod 72A1 of the lock cylinder 72A by controlling the air direction control device 72B according to a predetermined condition described later.

  The rotary drive mechanism 60 has a total of three proximity switches 74A, 74B, which are attached to the outer peripheral surface of the rotary 14 at intervals of 120 °, and are arranged slightly apart from the outer peripheral surface of the rotary 14 and close to each other. 74C is provided. The proximity switches 74A, 74B, and 74C are configured to turn on the electrical circuit (control circuit unit) including the proximity switches 74A, 74B, and 74C when the metal 74Z approaches the predetermined range. That is, in a state where the rotary 14 has reached a predetermined rotation angle position, the proximity switch 74A, 74B, 74C detects the proximity of the metal 74Z by the proximity of the metal 74Z to the proximity switches 74A, 74B, 74C. The rotary 14 is detected to be at a predetermined rotational angle position.

  The proximity switches 74A, 74B, and 74C are connected to the control unit 38. When the proximity switches 74A, 74B, and 74C detect the proximity of the metal 74Z, the control unit 38 controls the air direction control device 72B based on the detection result, so that the rod 72A1 of the lock cylinder 72A is rotated. The direction is controlled so as to extend to a position that fits into the recess 14X on the outer peripheral surface of the 14. Further, when the proximity switches 74A, 74B, and 74C do not detect the proximity of the metal 74Z, the control unit 38 controls the air direction control device 72B so that the rod 72A1 of the lock cylinder 72A is moved from the outer peripheral surface of the rotary 14. The direction is controlled so as to shrink to a distant position.

  As a result, the rotation drive mechanism 60 is configured to temporarily stop the rotary 14 with a plurality of positions in the projection area 40B as the revolution stop positions of the object W to be processed. Effective suppression is planned. Here, as shown in FIG. 4, the revolution stop position of the object W to be processed in the projection area 40 </ b> B is such that the rotation axis of the rotation shaft member 46 is the first and second projectors 30 </ b> A and 30 </ b> B in the apparatus plan view. The second position (see FIG. 4 (B)), which is the position disposed on the center lines L1, L2 in the projection direction of the projection material, and the second position shown in FIG. A first position (see FIG. 4A) which is a position upstream of the rotational direction (so-called eccentric position), and a position downstream of the rotary 14 in the rotational direction with respect to the second position shown in FIG. 4B. It is set to a third position (see FIG. 4C) which is an eccentric position.

  When the rotary 14 is temporarily stopped at the revolution stop position of the workpiece W, as shown in FIG. 6, one of the processing chambers R1 is arranged in the carry-in area 40A (in other words, The other chamber of the processing chamber R1 is set in the carry-out area 40C (in other words, the carry-out chamber 22).

  On the other hand, as shown in FIG. 2, a bicycle wheel 48 is coaxially connected to the upper portion of the rotation shaft member 46 on the upper side of the rotary 14. The bicycle wheel 48 is composed of a rubber roller, and the cage 44 attached to the rotating shaft member 46 is projected on the projection area 40B (see FIG. 6, the area where the workpiece W is projected by the first and second projectors 30A and 30B. ), Specifically, when it reaches the revolution stop position of the workpiece W, it comes into contact with the rotation driving wheel 50. The rotation driving wheel 50 is composed of a rubber roller and is connected to the rotation driving motor 52 so as to be driven. When the rotation driving wheel 50 is driven by the rotation driving motor 52 and contacts the bicycle wheel 48, the rotation driving wheel 50 rotates. The shaft member 46 rotates around its axis.

  As shown in FIG. 5, the rotation drive motor 52 (shown as a block in FIG. 5) is connected to the control unit 38. The control unit 38 controls the rotation driving motor 52 to operate when the projection material is projected onto the workpiece W.

  The rotation driving wheel 50 is attached to the swing arm 54A via a bearing. The swing arm 54A can swing (rotate) about the vertical axis 54X of the apparatus and is connected to the drive unit 54B (shown as a block in FIG. 5). It is supposed to be. The drive unit 54B includes an air cylinder. The drive unit 54B is connected to the control unit 38. When the workpiece W reaches the revolution stop position, the control unit 38 controls the drive unit 54B to swing the swing arm 54A so that the rotation driving wheel 50 is brought into contact with the bicycle wheel 48. So that it is controlled.

  In addition, a recess 49A is formed on the outer peripheral surface of the lock ring 49 that is fixed coaxially with the bicycle wheel 48, and a locking roller 56A is formed on the outer peripheral side of the lock ring 49 for the purpose of locking the rotation of the rotation shaft member 46. Is provided. The locking roller 56A is connected to a drive unit 56B (illustrated as a block in the drawing), and can be displaced between a position in the recess 49A and a position away from the recess 49A by the operation of the drive unit 56B. It is said that. The drive unit 56B is connected to the control unit 38.

  When the rotation driving motor 52 is operated, the control unit 38 controls the driving unit 56B to dispose the locking roller 56A at a position separated from the concave portion 49A and stops the rotation driving motor 52. In this case, the locking roller 56A is disposed in the recess 49A by controlling the driving unit 56B. Further, the control unit 38 controls the driving unit 54B after the locking roller 56A is disposed in the recess 49A, thereby swinging the swinging arm 54A and separating the rotation driving wheel 50 from the bicycle wheel 48. So that it is controlled.

  In FIG. 5, only one of the three rotation shaft members 46 is illustrated with its rotation and rotation lock mechanism, but the same mechanism is provided for the other two rotation shaft members 46. (Not shown in FIG. 5).

(Action / Effect)
Next, the operation and effect of the above embodiment will be described.

  In the shot blasting apparatus 10 according to the present embodiment, the rotation shaft member 46 shown in FIG. 6 is provided on the ceiling portion 14U of the rotary 14 to suspend and support the object to be processed W in the processing chamber R1 and to be processed. The object W can be rotated in the projection area 40B projected by the first and second projectors 30A and 30B. For this reason, the workpiece W is projected over the entire circumference.

  Further, in the shot blasting apparatus 10 according to the present embodiment, the carry-in area 40A is an area for suspending and supporting the object W to be processed on the rotation shaft member 46, and the carry-out area 40C is an object to be processed. This is an area for lowering W from the rotating shaft member 46. Three processing chambers R1 are arranged side by side in the circumferential direction of the rotary 14, and one of the processing chambers R1 is brought into the carry-in area 40A when the rotary 14 is temporarily stopped at the revolution stop position of the workpiece W. The other chamber of the processing chamber R1 is disposed in the carry-out area 40C.

  For this reason, while the projection is performed on the target object W in the projection area 40B, one or a plurality of target objects W are inserted into the cage 44 in the carry-in area 40A so that the target object W is inserted. At the same time as being suspended and supported by the rotation shaft member 46, the workpiece W to be processed can be lowered from the rotation shaft member 46 in the carry-out area 40C. In this way, since the carry-out and carry-in can be performed simultaneously in different areas during projection, the time required for carry-in / out is reduced compared to a configuration in which carry-out and carry-in are performed in one area, for example. The

  When carried in the carry-in area 40A and carried out in the carry-out area 40C, the rotary 14 and the partition 16 are rotated slightly less than 120 ° around the revolution shaft 62 by the driving force of the revolution drive motor 66 (see FIG. 2). The object to be processed W inserted in the cage 44 is moved from the carry-in area 40A to the projection area 40B.

  Next, as shown in FIG. 5, in the projection area 40 </ b> B, the rotation driving motor 52 is operated to rotate the rotation driving wheel 50, and the rotation driving wheel 50 comes into contact with the bicycle wheel 48 to rotate the rotation shaft member 46. Is rotated. As a result, the cage 44 in the projection area 40 </ b> B rotates about the rotation shaft member 46. Then, the open / close gates of the flow rate adjusting devices 24A and 24B are opened, and the processing in the cage 44 that rotates about the rotation shaft member 46 by the operation of the first and second projectors 30A and 30B (see FIG. 6). A projection material is projected onto the object W.

  Here, the first projector 30A shown in FIG. 6 is arranged on the upper side of the rotary 14, and the center line L1 in the projection direction of the projection material is inclined toward the lower side of the apparatus toward the inside of the processing chamber R1. Is set to On the other hand, the second projector 30B is arranged on the lower side of the rotary 14, and is set so that the center line L2 in the projection direction of the projection material is inclined upward toward the inside of the processing chamber R1. Has been. As described above, the projection material is projected from both the obliquely upper side and the obliquely lower side to the object to be processed W, so that the object is efficiently projected on the entire surface of the object to be processed W.

  In addition, the second projector 30B has a larger amount of projection per unit time of the projection material than the first projector 30A. For this reason, even if the projection material is decelerated by the oblique upward projection, the shot processing equivalent to the shot processing by the oblique downward projection of the first projector 30A is performed. In the present embodiment, the object to be processed W is slightly lifted in the cage 44 during the projection, and the projection is performed with a gap between the upper surface of the mounting portion of the cage 44 and the bottom surface of the object to be processed W. Will be made. For this reason, it is possible to eliminate the unprocessed portion (uncleaned portion) of the bottom surface (surface in contact with the cage 44) of the processing target object W which is difficult to be blasted (polished), and to ensure the entire processing target object W. Can be blasted.

  Further, the center line L1 in the projection direction of the projection material in the first projector 30A and the center line L2 in the projection direction of the projection material in the second projector 30B are at least the lower extension line of the rotation axis of the rotation shaft member 46. The projection material projected from the first projector 30 </ b> A and the projection material projected from the second projector 30 </ b> B on the object to be processed W are set so as not to intersect each other in the space of each projection position. The problem of interfering with each other before reaching is suppressed. For this reason, the projection efficiency is improved.

  On the other hand, in the shot blasting apparatus 10 according to the present embodiment, the rotation drive mechanism 60 shown in FIG. 5 revolves the rotating shaft member 46 by rotating the rotary 14 about the axis in the vertical direction of the apparatus, and the projection area. The rotary 14 is temporarily stopped by using the plurality of positions 40B as the revolution stop positions of the workpiece W. For this reason, since the method of hitting the projection material is relatively changed at a plurality of revolution stop positions, the workpiece W is projected more uniformly and accurately.

  More specifically, as shown in FIG. 4, the workpiece W that has entered the projection area 40 </ b> B has a first position (see FIG. 4A) and a second position (see FIG. 4B). , And the third position (see FIG. 4C) are stopped in order and projected while rotating at each position. Here, the second position shown in FIG. 4B is the center line L1 of the projection direction of the projection material in the first and second projectors 30A and 30B when the rotation axis of the rotation shaft member 46 is in the apparatus plan view. The first position shown in FIG. 4 (A) is a position on the upstream side in the rotational direction of the rotary 14 with respect to the second position shown in FIG. 4 (B). In addition, the third position shown in FIG. 4C is a position on the downstream side in the rotational direction of the rotary 14 with respect to the second position shown in FIG. Therefore, the object to be processed W is projected while being stopped at three points in the projection area 40B, and the second position (see FIG. 4 (B)) where the projection material efficiently hits and the first and third positions before and after the second position. In FIG. 4 (A) and FIG. 4 (C), it is projected efficiently and uniformly.

  As described above, according to the shot blasting apparatus 10 according to the present embodiment, the total processing time can be shortened.

[Second Embodiment]
Next, a shot blasting apparatus 80 as a shot processing apparatus according to the second embodiment of the present invention will be described with reference to FIGS. 7 is a front view showing the overall configuration of the shot blasting apparatus 80 according to the present embodiment, FIG. 8 is a right side view showing the overall configuration of the shot blasting apparatus 80, and FIG. The overall configuration of the shot blasting apparatus 80 is shown in a plan view. Further, FIG. 10 shows a configuration of the processing chamber R2 in the present embodiment in a sectional view in plan view. Note that components that are substantially the same as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 7 to 9, the shot blasting device 80 includes a hollow columnar cabinet 82. As shown in FIG. 9, a substantially cylindrical rotary 84 is disposed at the center inside the cabinet 82. As will be described in detail later, the rotary 84 is connected to a rotational drive mechanism 94 so as to be rotationally driven around an axis in the vertical direction of the apparatus.

  In the rotary 84, a plurality of (six chambers in this embodiment) processing chambers R2 are arranged in the circumferential direction by partitioning a space around the axis in the vertical direction of the apparatus, which is the rotation center, into partition portions 86 (partition members). It is installed side by side. In addition, although the partition part 86 is provided in the downward side of the ceiling part 84U in the rotary 84, in order to make a figure legible in the figure, most parts of the partition part 86 are illustrated with the solid line instead of the hidden line. . The processing chamber R2 is a room for carrying in / out the workpiece W and projecting the projection material. In these processing chambers R2, an opening 84A that opens toward the outer peripheral side is formed. The opening 84A is used for carrying in the object to be processed W, for carrying out the object to be processed W, and for passing the projection material.

  As in the first embodiment, the processing chamber R2 is disposed in the internal space of the cabinet 82, and can be any of the carry-in chamber 18, the projection chamber 20, and the carry-out chamber 22 due to the rotational displacement of the rotary 84. is there. In the present embodiment, two projection chambers 20 are provided.

  In the present embodiment, the blow-off chamber 21 is defined between the projection chamber 20 and the carry-out chamber 22. A spraying device (air blow unit) (not shown) is disposed on the outer peripheral side of the rotary 84 and in the facing portion of the blow-off chamber 21. The spraying device is used for blowing off the projection material remaining on the workpiece W, and gas (compressed air in this embodiment) can be sprayed to the inside of the rotary 84 through the opening 84A. .

  Note that the carry-in area 40A in the present embodiment is an area for hanging and supporting the object to be processed W on a hanger hook 92 as a suspension support part described later, and the carry-out area 40C is the area to be processed W. This is an area for lowering from the hanger hook 92.

  As shown in FIG. 10, liners 87 </ b> A and 87 </ b> B are attached to the partition portion 86 on partition surfaces directed to the inside of the processing chamber R <b> 2. The liner 87 </ b> A extends in the radial direction of the rotary 84 in a plan view, and an end 87 </ b> A <b> 1 disposed on the outer peripheral surface side of the rotary 84 is curved inward. A rubber lining is applied to the inner side surface of the end portion 87A1 of the liner 87A. In such a configuration, even if the projected blast material flows along the liner 87A, it is stalled at the end portion 87A1 of the liner 87A and falls to the bottom floor portion 84Z of the rotary 84, and from the hole portion 84Z1 of the bottom floor portion 84Z. It is collected in a hopper 90A (see FIG. 8) described later. In addition, the liner 87C is similarly attached to the bottom floor part 84Z and the ceiling part which is not illustrated by the rotary 84.

  On the other hand, as shown in FIGS. 7 and 8, a first projector 88 </ b> A is disposed on the side of the upper portion of the rotary 84, and the first projector 88 </ b> A is attached to the upper side of the side wall of the cabinet 82. It has been. On the other hand, a second projector 88B is disposed on the lower side of the rotary 84, and the second projector 88B is attached to the lower side of the side wall of the cabinet 82. The first and second projectors 88A and 88B have the same basic configuration as the first and second projectors 30A and 30B (see FIG. 1 and FIG. 2) in the first embodiment. 9 is projected into the processing chamber R2 through an opening 84A in the processing chamber R2 shown in FIG.

  Moreover, the projection directions of the first and second projectors 88A and 88B shown in FIG. 7 and the like are set in the same manner as in the first embodiment. That is, the first projector 88A is set so that the center line (not shown) of the projection direction of the projection material is inclined toward the lower side of the apparatus toward the inside of the processing chamber R2 (see FIG. 9). The machine 88B is set so that the center line (not shown) of the projection direction of the projection material is inclined upward in the apparatus toward the inside of the processing chamber R2 (see FIG. 9). Moreover, the center line of the projection direction of the projection material in the first projector 88 </ b> A and the center line of the projection direction of the projection material in the second projector 88 </ b> B are projected from the lower extension line of the rotation axis of the hanger hook 92. It is set so as not to intersect in the space on the position side. Further, similarly to the first embodiment, the second projector 88B is set so that the projection amount per unit time of the projection material is larger than that of the first projector 88A.

  As shown in FIGS. 7 and 8, the first and second projectors 88A and 88B are connected to the flow rate adjusting devices 24A and 24B via the introduction cylinders 28A and 28B and the introduction pipes 26A and 26B. The flow rate adjusting device 24A and the flow rate adjusting device 24B are each provided in two units, and the two introduction pipes 26A are connected to the flow rate adjustment device 24A on a one-to-one basis, and the two introduction pipes 26B are These are connected to the flow rate adjusting device 24B on a one-to-one basis. Similarly to the first embodiment, the flow rate adjusting devices 24A and 24B are connected to a control unit (not shown), and the operation of the opening and closing gate (opening and closing and adjustment of the opening and closing amount) is controlled as in the first embodiment. Controlled by the department.

  The first and second projectors 88A and 88B are connected to the circulation device 90 via the introduction cylinders 28A and 28B, the introduction pipes 26A and 26B, and the flow rate adjustment devices 24A and 24B. The circulation device 90 is a device for conveying the projection material projected by the first and second projectors 88A and 88B to circulate to the first and second projectors 88A and 88B, and in the first embodiment. The configuration is substantially the same as part of the circulation device 34 (see FIG. 1). Therefore, description of components that are substantially the same as those of the circulation device 34 (see FIG. 1) in the first embodiment will be omitted.

  The circulation device 90 includes a hopper 90 </ b> A below the rotary 84. The hopper 90A causes the projection material dropped from the hole 84Z1 (see FIG. 10) formed in the bottom floor portion 84Z of the rotary 84 to flow to the screw conveyor 34A. On the other hand, in the upper part of the apparatus, a wind-selective separator 90B is attached to the downstream side in the transport direction of the upper screw conveyor 34E.

  Separator 90B is adapted to classify foreign substances from the projection material by sorting into light and falling heavy objects placed on the air flow by applying an air flow to the powder material containing the injected projection material, Only the usable projection material is allowed to flow into the projection material tank 90C. The projection material tank 90C is a tank for supplying the projection material to the flow rate adjustment devices 24A and 24B, and is disposed above the flow rate adjustment devices 24A and 24B.

  Next, a mechanism for revolving and rotating the workpiece W shown in FIG. 9 will be described. As shown in FIG. 9, a hanger hook 92 is provided on the ceiling portion 84 </ b> U of the rotary 84. The hanger hook 92 has a shaft portion coaxially connected to an upper portion of the shaft, and a lower portion thereof is disposed in the processing chamber R2, and supports the workpiece W to be suspended in the processing chamber R2.

  The cabinet 82 is provided with a rotation drive mechanism 94. The rotation drive mechanism 94 includes a revolution shaft portion 96, a revolution tire 98, and a revolution drive motor 100, and revolves the hanger hook 92 by rotating the rotary 84 around the vertical axis of the apparatus. ing.

  As shown in FIG. 7, the revolution shaft portion 96 is arranged with the vertical direction of the device as the axial direction, the upper and lower end portions are supported by the frame portion via the bearing portion, and the center of the ceiling portion 84U of the rotary 84. It is fixed to the part. As shown in FIG. 9, the outer peripheral side surface of the rotary 84 is in contact with a revolving tire 98 arranged with the vertical direction of the device as the axial direction.

  A bearing portion that rotatably supports the revolution tire 98 is attached to a swing arm 99 that can swing (rotate and move) about a shaft 99X in the vertical direction of the apparatus. The tip end portion (right end portion in the figure) of the swing arm 99 is biased toward the rotary 84 by a spring (not shown). Thereby, the revolution tire 98 is pressed to the rotary 84 side.

  The revolution tire 98 is coaxially connected to the motor shaft of the revolution drive motor 100 and is driven to rotate by the revolution drive motor 100. In other words, the rotary 84 rotates around the revolution shaft portion 96 by the operation of the revolution drive motor 100. In addition, the revolution drive motor 100 is connected to a control unit (not shown) similarly to the first embodiment, and the operation is controlled by the control unit. Further, the rotation drive mechanism 94 has a function for revolving lock similarly to the rotation drive mechanism 60 (see FIG. 5) of the first embodiment.

  As a result, the rotary drive mechanism 94 primarily stops the rotary 84 with a plurality of positions in the projection area 40B as the revolution stop positions of the object to be processed W, thereby preventing blast processing unevenness (polishing unevenness) or Effective suppression is planned. Here, the revolution stop position of the object W to be processed in the projection area 40B is the first and second projections of the rotation axis of the hanger hook 92 in plan view of the apparatus, as in the first embodiment (see FIG. 4). A second position which is a position arranged on the center line of the projection direction of the projection material in the machines 88A and 88B, a first position which is a position upstream of the rotary 84 in the rotation direction of the rotary 84, and the first The second position is set to the third position, which is the position downstream of the rotary 84 in the rotation direction.

  These are controlled by a control unit (not shown) as in the first embodiment. Further, in the present embodiment, the hanger hook 92 revolves at a low speed when entering the projection area 40B, and includes a front stop at the first position, a central stop at the second position, and a rear stop at the third position. The revolution is stopped at the point, and when moving from the projection area 40B to the next projection area 40B, the revolution is controlled at a high speed.

  When the rotary 84 is temporarily stopped at the revolution stop position of the workpiece W, one of the processing chambers R2 is disposed in the loading area 40A (in other words, the loading chamber 18). The other one of the processing chambers R2 is set to be placed in the carry-out area 40C (in other words, the carry-out chamber 22).

  On the other hand, a total of two drive motors 102 with chain wheels are arranged on the ceiling portion 82 </ b> U of the cabinet 82 corresponding to the projection chamber 20. The chain wheel 102 </ b> A of the drive motor 102 with the chain wheel can be pressed against the wheel portion 92 </ b> A side of the hanger hook 92 by the cylinder 104. Specifically, when the chain wheel 102A reaches the revolution stop position of the projection area 40B (the area where the workpiece W is projected by the first and second projectors 88A and 88B), The hanger hook 92 is pressed against the wheel portion 92A. In addition, when the chain wheel drive motor 102 is in an operating state and the chain wheel 102A comes into contact with the wheel portion 92A of the hanger hook 92, the hanger hook 92 rotates around its axis.

  The cylinder 104 is a known air cylinder having an extendable rod, and is connected to an air supply source (not shown) via an air direction control device (such as a solenoid valve) (not shown). Are connected to a control unit (not shown). The controller has a chain wheel attached to the wheel portion 92A of the hanger hook 92 by controlling the direction of the expansion and contraction of the rod of the cylinder 104 so that the hanger hook 92 rotates at a predetermined timing at the same timing as in the first embodiment. The chain wheel 102A of the drive motor 102 is contacted and separated.

  Further, the conditions for causing the workpiece W shown in FIG. 9 to revolve, stop revolution, rotate, and rotate are the same as those in the first embodiment, and these operations and the like are performed by the control unit (not shown). It is controlled.

  Also by the configuration of the present embodiment described above, the same operations and effects as those of the first embodiment described above can be obtained.

[Modification of Second Embodiment]
As a modification of the second embodiment, the partition configuration inside the rotary 84 may be a configuration as shown in FIG. Note that components that are substantially the same as those in the above embodiment are denoted by the same reference numerals and description thereof is omitted. Although not shown in detail, the partition 86 has a liner on the partition surface directed toward the interior of the processing chamber R2 (the same liner as the liners 87A and 87B (see FIG. 10) in the second embodiment). Is attached, and a liner is suitably attached to the bottom floor portion and the ceiling portion of the rotary 84.

  FIG. 11A shows a configuration in which there are two processing chambers R2, and one loading / unloading chamber 19 and one projection chamber 20 are provided. FIG. 11B shows a configuration in which the processing chamber R2 has three chambers, and each of the carry-in chamber 18, the projection chamber 20, and the carry-out chamber 22 is provided. FIG. 11C shows a configuration in which the processing chamber R2 has five chambers, and each of the carry-in chamber 18, the projection chamber 20, and the carry-out chamber 22 is provided. FIG. 11D shows a configuration in which the processing chamber R2 has six chambers, the projection chamber 20 has two chambers, the carry-in chamber 18 and the carry-out chamber 22 each one. FIG. 11E shows a configuration in which the processing chambers R2 are four chambers, and each of the carry-in chamber 18, the projection chamber 20, and the carry-out chamber 22 is provided. FIG. 11F shows a configuration in which the processing chamber R2 has six chambers, the projection chamber 20 has two chambers, the carry-in chamber 18 and the carry-out chamber 22 each one.

[Third Embodiment]
Next, a shot blasting apparatus 110 as a shot processing apparatus according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 12 is a front view showing the overall configuration of the shot blasting apparatus 110 according to the third embodiment of the present invention, and FIG. 13 is a right side view showing the overall configuration of the shot blasting apparatus 110. FIG. 14 is a plan view showing the overall configuration of the shot blasting apparatus 110. In addition, about the component substantially the same as 1st, 2nd embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. In addition, for example, a casting product, a pressed product, a welded structure, or the like, such as a car-related part, is applied to the workpiece W of the shot blasting apparatus 110 according to the present embodiment.

  As shown in FIGS. 12 to 14, the shot blasting device 110 includes a box-shaped cabinet 112. As shown in FIG. 14, a substantially cylindrical rotary 114 (also referred to as “revolving drum”) is arranged inside the cabinet 112. As will be described in detail later, the rotary 114 is connected to a rotation drive mechanism 126 so as to be driven to rotate about an axis in the vertical direction of the apparatus.

  In the rotary 114, a plurality of (in this embodiment, a total of two chambers) processing chambers are arranged in parallel in the circumferential direction by dividing the space around the axis in the vertical direction of the apparatus, which is the center of rotation, by the partition 116. . The partition part 116 is comprised by the partition member. The processing chamber R3 has an opening 114A that opens toward the outer periphery. The opening 114 </ b> A is used for carrying in the workpiece W, carrying out the workpiece W, and passing the projection material.

  The processing chamber R <b> 3 is a room that is disposed in the internal space of the cabinet 12 and can be either the loading / unloading chamber 19 or the unloading chamber 22 due to the rotational displacement of the rotary 114. Here, the loading / unloading chamber 19 is a room that is arranged in the loading / unloading area 40D of the shot blasting apparatus 110 and serves both for loading and unloading the workpiece W. In other words, for example, the processing chamber R3 that was initially the loading / unloading chamber 19 becomes the projection chamber 20 when the rotary 114 is rotationally displaced around the axis by a predetermined angle, and further, the rotary 114 is rotated around the axis. It becomes the loading / unloading chamber 19 by being rotationally displaced by a predetermined angle.

  The carry-in / out area 40 </ b> D is an area for lowering the workpiece W from a rotation shaft member 122 as a suspension support portion described later, and is used to suspend and support the workpiece W on the rotation shaft member 122. Area.

  On the other hand, as shown in FIG. 13, a first projector 118 </ b> A is disposed on the upper side of the rotary 114, and the first projector 118 </ b> A is attached to the upper side of the side wall of the cabinet 112. . In contrast, a second projector 118 </ b> B is disposed on the lower side of the rotary 114, and the second projector 118 </ b> B is attached to the lower side of the side wall of the cabinet 112. The first and second projectors 118A and 118B have the same basic configuration as the first and second projectors 30A and 30B (see FIG. 1 and FIG. 2) in the first embodiment. 14 is projected into the processing chamber R3 through an opening 114A in the processing chamber R3.

  Further, the projection directions of the first and second projectors 118A and 118B shown in FIG. 13 are set in the same manner as in the first embodiment. That is, the first projector 118A is set such that the center line L3 in the projection direction of the projection material is inclined toward the lower side of the apparatus toward the inside of the processing chamber R3, and the second projector 118B is configured to project the projection material. The direction center line L4 is set to incline toward the upper side of the apparatus toward the inside of the processing chamber R3. In addition, as shown in FIG. 12, the first projector 118A and the second projector 118B are configured such that the rotation axes CL3 and CL4 of the respective impellers are parallel to each other and in the rotation axis direction of the impeller. It is arranged with an offset. Due to this offset, the center line L3 (see FIG. 13) in the projection direction of the projection material in the first projector 118A and the center line L4 (see FIG. 13) in the projection direction of the projection material in the second projector 118B are ( The rotation shaft member 122 is set so as not to intersect (including the space on the projection position side with respect to the lower extension line of the rotation shaft). In FIG. 13, the center line L3 of the projection direction of the projection material in the first projector 118A and the center line L4 of the projection direction of the projection material in the second projector 118B intersect when viewed two-dimensionally. However, the center line L3 and the center line L4 are shifted in a direction perpendicular to the paper surface in the figure and do not intersect three-dimensionally.

  Further, similarly to the first embodiment, the second projector 118B is set so that the projection amount per unit time of the projection material is larger than the projection amount of the first projector 118A. In this embodiment, as an example, the projection amount per unit time of the projection material in the upper first projector 118A is 300 kg / min, and the projection amount per unit time of the projection material in the lower second projector 118B is 400 kg. / Min.

  The first and second projectors 118A and 118B are connected to the flow rate adjusting devices 24A and 24B via the introduction pipes 26A and 26B. Similarly to the first embodiment, the flow rate adjusting devices 24A and 24B are connected to a control unit (not shown), and the operation of the opening and closing gate (opening and closing and adjustment of the opening and closing amount) is controlled as in the first embodiment. Controlled by the department.

  The first and second projectors 118A and 118B are connected to the circulation device 120 via the introduction pipes 26A and 26B and the flow rate adjusting devices 24A and 24B. The circulation device 120 is a device for conveying the projection material projected by the first and second projectors 118A and 118B to circulate to the first and second projectors 118A and 118B, and in the first embodiment. The configuration is substantially the same as part of the circulation device 34 (see FIG. 1). Therefore, description of components that are substantially the same as those of the circulation device 34 (see FIG. 1) in the first embodiment will be omitted.

  As shown in FIG. 12, a box 120A is installed on the upper part of the apparatus. A rotary screen (rotary sieve) 120B is disposed on the upper side inside the box 120A, and a screw conveyor 34E is inserted into the rotary screen 120B. The rotary screen 120B includes a sieve body (not shown), and the sieve body is formed in a cylindrical shape with a mesh body, and a plurality of holes (mesh) having a diameter larger than the diameter of the projection material are formed. It is designed to rotate around its own axis. The rotary screen 120B allows the mixture containing the collected projection material and powdered foreign matter to flow into the inside of the sieve body from the screw conveyor 34E and rotate the sieve body around the axis to rotate the mixture. Remove foreign material having a diameter larger than the hole while moving.

  A wind-selective separator 120C is disposed on the lower side inside the box 120A. Separator 120C sorts into a light thing and a heavy thing which fall by putting air current on the granular material containing the projection material which flowed in through the hole of rotary screen 120B, and falling on the air current, Foreign substances (for example, impurities such as fine powder and sand) are classified. A dust collector 120G (see FIG. 13) is connected to the separator 120C via a duct 120F. The dust collector 120G sucks air in the separator 120C by suction means (blower), and the air flow is generated inside the separator 120C by this suction input.

  A projection material tank 120D and a foreign matter discharge chute 120E are connected in communication with the lower part of the box 120A. A projection material from which impurities are separated by a separator 120C flows into the projection material tank 120D and is circulated for use. The projection material tank 120D is a tank for supplying the projection material to the flow rate adjustment devices 24A and 24B shown in FIG. 13, and is disposed above the flow rate adjustment devices 24A and 24B. On the other hand, the foreign matter discharge chute 120E is used for discharging large foreign matter (for example, cast burr) discharged from the front end side of the rotary screen 120B to the outside of the apparatus.

  Next, a mechanism for revolving and rotating the workpiece W shown in FIGS. 13 and 14 will be described. As shown in FIG. 13, a rotation shaft member 122 is provided on the ceiling 114 </ b> U of the rotary 114. The lower part of the rotation shaft member 122 is disposed in the processing chamber R3, and supports the workpiece W to be suspended in the processing chamber R3 via the cage 124.

  In the present embodiment, the cage 124 shown in FIG. 13 includes a support column portion 124A that is disposed with the upper end of the rotation shaft member 122 engaged with the upper end portion of the cage 124 as a longitudinal direction, and the support column portion 124A. The arm portion 124 </ b> B is provided so as to be horizontally inserted from the object to be processed and inserted. The object to be processed W is inserted into the cage 124 to prevent the object to be processed W from falling and to prevent the object to be processed W from being damaged. Further, the arrangement center of the object to be processed W in the arm portion 124 </ b> B is set to be concentric with the rotation axis (rotation center) of the rotation shaft member 122 in plan view of the apparatus. Incidentally, although one arm portion 124B is provided in the drawing, a plurality of (for example, three) arm portions 124B may be provided at intervals in the vertical direction of the apparatus. Further, a cage cage 125 may be applied instead of the cage 124.

  The cabinet 112 is provided with a rotation drive mechanism 126. The rotation drive mechanism 126 includes a revolution shaft portion 128, a revolution wheel 130 (see FIG. 14), and a revolution drive motor 132, and rotates the rotary 114 shown in FIG. 14 around the vertical axis of the apparatus. Thus, the rotating shaft member 122 is revolved. In FIG. 14, reference numeral 128 is attached to the axis of the revolution shaft portion 128.

  As shown in FIG. 13, the revolving shaft portion 128 is arranged with the vertical direction of the apparatus as the axial direction, is supported by the frame portion via the bearing portion, and is fixed to the center portion of the ceiling portion 114U of the rotary 114. ing. As shown in FIG. 14, the outer peripheral side surface of the rotary 114 is in contact with the revolving wheel 130 arranged with the vertical direction of the device as the axial direction.

  The revolution wheel 130 is coaxially connected to the motor shaft of the revolution drive motor 132 and is driven to rotate by the revolution drive motor 132. In other words, the rotary 114 rotates around the revolution shaft portion 128 by the operation of the revolution drive motor 132. In addition, the revolution drive motor 132 is connected to a control unit (not shown) similarly to the first embodiment, and the operation is controlled by the control unit. Further, the rotation drive mechanism 126 has a function for revolving lock similarly to the rotation drive mechanism 60 (see FIG. 5) of the first embodiment.

  As a result, the rotation drive mechanism 126 primarily stops the rotary 114 with a plurality of positions in the projection area 40B as the revolution stop positions of the object to be processed W, thereby preventing blast processing unevenness (polishing unevenness) or Effective suppression is planned. Here, the revolution stop position of the workpiece W in the projection area 40B is the center line of the projection direction of the projection material in the first projector 118A (see FIG. 13) when the rotation axis of the rotation shaft member 122 is the apparatus plan view. L2 (see FIG. 13), a second position that is a position to be disposed on, a first position that is a position upstream of the second position in the rotational direction of the rotary 114, and the second position. It is set to a third position which is a position downstream of the rotary 114 in the rotation direction. As a setting according to the modified example, the revolution stop position of the workpiece W in the projection area 40B is such that the rotation axis of the rotation shaft member 122 is the projection material in the second projector 118B (see FIG. 13) in plan view of the apparatus. A second position that is a position disposed on the center line L4 (see FIG. 13) in the projection direction, a first position that is a position on the upstream side in the rotational direction of the rotary 114 with respect to the second position, and the first position You may set to the 3rd position which is a position of the rotation direction downstream of the rotary 114 with respect to 2 positions. These are controlled by a control unit (not shown) as in the first embodiment.

  When the rotary 114 is primarily stopped at the revolution stop position of the workpiece W, one of the processing chambers R3 is arranged in the projection area 40B (in other words, the projection chamber 20). At the same time, the other one of the processing chambers R3 is set in the carry-in / out area 40D (in other words, the carry-in / out chamber 19).

  On the other hand, as shown in FIG. 13, a bicycle wheel 134 is coaxially fixed to the upper end portion of the rotation shaft member 122 on the upper side of the cabinet 112. On the other hand, a rotation driving motor 136 is provided above the projection chamber 20, and a driving roller 138 driven by the operation of the rotation driving motor 136 is provided. As shown in FIG. 14, the drive roller 138 is attached to the swing arm 140 similar to the swing arm 54A (see FIG. 5) of the first embodiment, and the covered roller is similar to the first embodiment. When the processing object W reaches the revolution stop position of the projection area 40B (the area where the processing object W is projected by the first and second projectors 118A and 118B (see FIG. 13)), it is pressed against the bicycle wheel 134. It is like that. Further, when the driving roller 138 contacts the bicycle wheel 134 in the operating state of the rotation driving motor 136 (see FIG. 13), the rotation shaft member 122 rotates around its axis.

  Note that the conditions for causing the object to be processed W shown in FIG. 14 to revolve, stop revolution, rotate, and stop rotation are the same as those in the first embodiment, and these operations and the like are performed by the control unit (not shown). It is controlled.

  According to the configuration of the above embodiment, the object to be processed W cannot be carried in and out at the same time while the object to be processed W is projected in the projection area 40B. W can be carried out and carried in, and the other operations and effects similar to those of the first embodiment described above can be obtained in other respects. Then, the revolution drive motor 132 (see FIG. 13) is operated, and the rotary 114 and the partition 116 are rotated by a little less than 180 degrees around the revolution shaft 128, so that the object to be processed is inserted into the cage 124. The object W is moved between the projection area 40B and the carry-in / out area 40D.

[Fourth Embodiment]
Next, a shot blasting apparatus 150 as a shot processing apparatus according to the fourth embodiment of the present invention will be described with reference to FIGS. 15 shows the overall configuration of the shot blasting apparatus 150 in a front view, FIG. 16 shows the overall configuration of the shot blasting apparatus 150 in a right side view, and FIG. The overall configuration is shown in a plan view.

  A shot blasting apparatus 150 shown in these drawings is basically an apparatus in which the shot blasting apparatus 110 (see FIGS. 12 to 14) according to the third embodiment is miniaturized. Note that components substantially similar to those of the shot blast device 110 according to the first to third embodiments are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 16, the circulating device 152 for conveying the projection material projected by the first and second projectors 118A and 118B and circulating it to the first and second projectors 118A and 118B is a bucket elevator. The upper part of 34B is connected to separator 120C via chute 34D. That is, the circulation device 152 does not have a configuration corresponding to the screw conveyor 34E and the rotary screen 120B in the circulation device 120 of the third embodiment shown in FIG.

  Also according to the configuration of the present embodiment, substantially the same operations and effects as the third embodiment described above can be obtained.

[Supplementary explanation of the embodiment]
In the above embodiment, the shot processing apparatuses are the shot blast apparatuses 10, 80, and 110. However, the shot processing apparatus may be applied to, for example, a shot peening apparatus.

  Moreover, in the said embodiment, the centrifugal type projector (1st projector 30A, 88A, 118A and 2nd projector 30B, 88B, 118B) which accelerates and projects a projection material with a centrifugal force is shot blasting apparatus 10. However, the projector may be another projector such as an air nozzle type projector that pumps a projection material together with compressed air and injects it from a nozzle. .

  For driving the revolving shaft portions 62, 96, and 128, instead of the configuration of the above embodiment, for example, the shaft portion of the drive motor is directly connected to the revolving shaft portion (rotating shaft) or the drive motor is driven. The revolving shaft portion (rotating shaft) may be driven by a directly connected tension rubber roller.

  Moreover, in the said embodiment, the revolution stop position of the to-be-processed target object W is set to the 1st position, the 2nd position, and the 3rd position, and it is like this from a viewpoint of projecting more efficiently and uniformly. However, the revolution stop position of the workpiece W may be set to any two positions of the first position, the second position, and the third position, for example.

  In the above embodiment, the first projectors 30A, 88A, 118A are arranged on the sides of the top of the rotary 14, 84, 114, and the center lines L1, L3 in the projection direction of the projection material to be projected are the processing chamber R1. , R2 and R3 are set so as to incline toward the lower side of the apparatus, and the second projectors 30B, 88B and 118B are disposed on the lower sides of the rotary 14, 84 and 114 and Although the center lines L2 and L4 in the projection direction of the projection material to be projected are set to incline toward the upper side of the apparatus toward the inside of the processing chambers R1, R2 and R3, for example, the shape of the object to be processed Depending on the case, a configuration may be adopted in which the projector is disposed only on the side of the central portion in the vertical direction of the rotary.

  Moreover, in the said embodiment, centerline L1, L3 of the projection direction of the projection material in 1st projector 30A, 88A, 118A and center line L2, of the projection direction of the projection material in 2nd projector 30B, 88B, 118B, L4 is set so as not to intersect in the space on each projection position side from the lower extension line of the rotation shaft of the suspension support portion (the rotation shaft member 46, the hanger hook 92, the rotation shaft member 122), Such a configuration is preferable from the viewpoint of more efficiently projecting the object to be processed W, but a mode that is not such a setting can also be adopted.

  Moreover, in the said embodiment, although the suspension support part (the rotation shaft member 46, the hanger hook 92, the rotation shaft member 122) is stopped by rotation at a predetermined time, the suspension support part is always rotated at the time of revolution. obtain.

  Further, as a modification of the above-described embodiment, for example, the shot processing apparatus includes six processing chambers arranged in parallel in the circumferential direction of the rotary, and the rotary is temporarily stopped at the revolution stop position of the object to be processed. Two of the processing chambers are arranged in the projection area, two of the processing chambers are arranged in the carry-in area, and two of the processing chambers are arranged in the carry-out area It may be.

  In addition, the said embodiment and the above-mentioned some modification can be implemented combining suitably.

  Incidentally, as a reference example that is not the present invention, a configuration in which the rotary is temporarily stopped with a single position of the projection area as the revolution stop position of the object to be processed (for example, the revolution axis) with the apparatus configuration almost the same as the above embodiment. A cam-type indexing device (for example, a configuration in which a configuration including an index man (registered trademark) manufactured by CKD) and a torque limiter is used for driving the portion (rotating shaft) may be employed.

10 Shot blasting equipment (shot processing equipment)
14 Rotary 14A Opening 14U Ceiling 16 Partition 30A First Projector 30B Second Projector 40A Carry-in Area 40B Projection Area 40C Carry-out Area 46 Rotating Shaft Member (Hanging Support)
60 Rotation drive mechanism 80 Shot blasting device (shot processing device)
84 Rotary 84A Opening 84U Ceiling 88A First projector 88B Second projector 86 Partition 92 Hanger hook (suspending support)
94 Rotation Drive Mechanism 110 Shot Blasting Device (Shot Processing Device)
114 Rotary 114A Opening 114U Ceiling part 116 Partition part 118A First projector 118B Second projector 122 Autorotation shaft member (suspending support part)
126 Rotation drive mechanism L1 Center line in projection direction of projection material in first projector L2 Center line in projection direction of projection material in second projector L3 Center line in projection direction of projection material in first projector L4 Second projection Center line of the projection direction of the projection material in the machine R1 Processing chamber R2 Processing chamber R3 Processing chamber W Object to be processed

Claims (5)

A plurality of processing chambers are arranged in the circumferential direction by partitioning the space around the axis line with a partitioning portion, and the processing chambers are arranged on the outer peripheral side. A rotary in which an opening is formed for opening the object to be processed, for carrying in the object to be processed, for carrying out the object to be processed, and for passing the projection material;
A projector that projects a projection material into the processing chamber through the opening in the processing chamber;
A suspension support unit provided on the ceiling of the rotary, and supporting the object to be treated in a suspended manner in the processing chamber and capable of rotating in a projection area in which the object to be treated is projected by the projector;
A rotary drive mechanism that revolves the suspension support by rotating the rotary around the axis, and temporarily stops the rotary with a plurality of positions in the projection area as a revolution stop position of the object to be processed;
A shot processing apparatus. The revolution stop position of the object to be processed in the projection area is
A second position which is a position where the rotation axis of the suspension support part is arranged on the center line in the projection direction of the projection material in the projector in plan view of the apparatus;
A first position that is a position upstream of the rotary direction in the rotational direction of the rotary;
A third position which is a position on the downstream side in the rotational direction of the rotary with respect to the second position;
The shot processing apparatus according to claim 1, wherein A carry-in area for hanging and supporting the object to be processed on the suspension support part,
A carry-out area for lowering the object to be treated from the suspension support;
Is provided,
Three or more processing chambers are arranged in parallel in the circumferential direction of the rotary, and when the rotary is temporarily stopped at the revolution stop position of the object to be processed, at least one of the processing chambers is the carry-in area. The shot processing apparatus according to claim 1, wherein at least one other chamber among the processing chambers is set to be disposed in the carry-out area. The projector is
A first projector that is arranged on the side of the upper part of the rotary, and is set so that the center line in the projection direction of the projection material is inclined toward the apparatus lower side toward the inside of the processing chamber;
Projection per unit time of the projection material is arranged on the side of the lower part of the rotary, and is set so that the center line in the projection direction of the projection material is inclined to the upper side of the apparatus toward the inside of the processing chamber. A second projector whose amount is set to be larger than that of the first projector;
The shot processing apparatus of any one of Claims 1-3 provided with these.   The center line in the projection direction of the projection material in the first projector and the center line in the projection direction of the projection material in the second projector are at least more than the lower extension line of the rotation shaft of the suspension support part. The shot processing apparatus according to claim 4, wherein the shot processing apparatus is set so as not to intersect in the space on the projection position side.