WO2013121657A1 - Shot processing device - Google Patents

Abstract

The present invention provides a shot processing device whereby it is possible to reduce the total processing time. A workpiece (W) is transported by means of a carry-in roller conveyor (12). The workpiece (W) on the carry-in roller conveyor (12) is carried into a projection chamber (18) of a cabinet (16) by means of a carrying-in device (32) once the workpiece (W) reaches the downstream of the transport line of the carry-in roller conveyor (12). The workpiece (W) that was carried into the projection chamber (18) is held by means of a clamping device (34). A projector projects a projection material onto the workpiece (W) that is held by the clamping device (34), and then said workpiece (W) is carried out on a carry-out roller conveyor (52) by means of a carrying-out device (56). It is possible to carry a workpiece (W) out from the projection chamber (18) at the same time a workpiece (W) is carried into the projection chamber (18) because the mechanism on the carry-in side and the mechanism on the carry-out side are separated.

Description

Shot processing device

The present invention relates to a shot processing apparatus, and more particularly, to a shot processing apparatus that performs shot processing on a workpiece by projecting a projection material onto the workpiece by a projector in a projection chamber formed in a cabinet.

In a shot blasting apparatus, there is a case where a workpiece conveyed by a conveyor is carried into a blasting chamber by a carry-in / out device and blasted in a state where the workpiece is clamped by a clamping device (for example, see Patent Document 1). In such an apparatus, before the work is carried in by the carry-in / out device, another work blasted in the blast chamber is carried out from the blast chamber to the conveyor by the carry-in / out device.

JP-A-8-229822

However, this apparatus has room for improvement in terms of reducing the total processing time.

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

A shot processing apparatus according to the present invention is a shot processing apparatus that performs shot processing on a workpiece by projecting a projection material onto the workpiece by a projector in a projection chamber formed in the cabinet. One conveyor, a second conveyor that conveys the workpiece from the cabinet, a loading device that loads the workpiece on the first conveyor into the projection chamber, and a carry-out device that loads the workpiece in the projection chamber onto the second conveyor.

According to the shot processing apparatus of the present invention having such a configuration, the work is conveyed by the first conveyor. The workpiece | work on a 1st conveyor is carried in into the projection chamber of a cabinet by a carrying-in apparatus. The work carried into the projection chamber is clamped by the clamping device. And the workpiece | work clamped by the clamp apparatus is carried out on a 2nd conveyor by a carrying out apparatus, after projecting a projection material with a projector. Thus, by separating the mechanism on the carry-in side and the mechanism on the carry-out side, the work can be carried into the projection chamber in parallel with the carry-out from the projection chamber. For this reason, the time required for carrying in / out is reduced.
In the shot device of the present invention, preferably, the second conveyor is provided on the opposite side of the first conveyor with the cabinet interposed therebetween.
In addition, the shot device of the present invention preferably further includes a clamp device that is provided in the cabinet and clamps the work carried into the projection chamber.

The shot processing apparatus of the present invention preferably further includes a carry-in / carry-out control unit that controls operations of the carry-in device and the carry-out device, and the carry-in / carry-out control unit includes a timing at which the carry-in device carries the workpiece into the projection chamber. The operation of the carry-in device and the carry-out device is controlled so that the timing when the carry-out device carries the workpiece sandwiched between the clamp devices onto the second conveyor overlaps.

According to the shot processing apparatus having the above configuration, the parallel processing of loading and unloading of workpieces is automatically performed.

In the shot processing apparatus of the present invention, preferably, the carry-in apparatus is provided with a carry-in bracket provided with a carry-in receiving part for placing a work, and a carry-in line connecting the first conveyor side and the projection chamber side. A loading movable body that is movable in the direction, a loading rail that is provided integrally with the loading moving body so as to extend in a direction orthogonal to the loading line, and a loading rail that is movable along the loading rail at the tip. A carrying-in rotary arm that includes a moving part and is rotatable about a base end; and a loading drive device that rotates the carrying-in rotary arm, and the loading drive device rotates the loading rotary arm. Thus, the carrying-in moving part of the carrying-in rotary arm moves in a single-string motion in the direction of the carrying-in line between the position approaching and separating from the projection chamber while pressing the loading rail. Mobile body It is moved along the carrying-in line.

According to the shot processing apparatus having the above-described configuration, the carry-in rotary arm is rotated around the base end portion by the carry-in drive device, so that the transfer moving unit provided at the distal end portion carries the carry-in rail into the carry-in line. A single string motion is performed between a position approaching the projection chamber and a position separating from the projection chamber while pressing in the direction of. Thereby, since the rotary arm for loading and the bracket for loading move at a low speed at the beginning and end of the moving operation, the impact on the workpiece in the transfer area is suppressed, and at a high speed in the middle of the moving operation, The time required to carry in the workpiece can be reduced.

In the shot processing apparatus of the present invention, preferably, the carry-out device is provided with a carry-out bracket provided with a carry-out receiving portion for placing a work, and a carry-out line connecting the projection chamber side and the second conveyor side. An unloading movable body movable in the direction, an unloading rail integrally provided in the unloading moving body so as to extend in a direction orthogonal to the unloading line, and an unloading movable at the tip portion along the unloading rail An unloading rotary arm that includes a moving means and is rotatable about a base end; and an unloading drive device that rotates the unloading rotation arm, and the unloading drive device rotates the unloading rotation arm. As a result, the unloading moving part of the unloading rotary arm performs a single string movement in the direction of the unloading line between the position approaching and separating from the projection chamber while pressing the unloading rail. Move The move along the carry-out line.

According to the shot processing device having the above-described configuration, the unloading rotary arm is rotated around the base end by the unloading driving device, so that the unloading moving unit provided at the distal end portion unloads the unloading rail. A single string motion is performed between a position approaching the projection chamber and a position separating from the projection chamber while pressing in the direction of. As a result, since the unloading rotary arm and unloading bracket move at a low speed at the beginning and end of the moving operation, the impact on the workpiece in the delivery area is suppressed, and the moving operation moves at a high speed in the middle of the moving operation. The time required to carry out the workpiece can be reduced.

The shot processing apparatus of the present invention is preferably provided at the projection port of the projector, and is movable between an open position for opening the projection port and a closed position for closing the projection port, and moves the shutter. The shutter drive unit and the shutter drive unit are operated so as to move the shutter to the open position when starting projection by the projector, and the shutter is moved to the closed position immediately after the projection by the projector is finished. A shutter control unit that controls the shutter drive unit.

According to the shot processing apparatus having the above-described configuration, since the work can be carried in and out immediately after the projection by the projector is completed, the processing time can be reduced.

The shot processing apparatus of the present invention is preferably provided at the carry-in port of the cabinet, and is capable of moving between an open position that opens the carry-in port and a closed position that closes the carry-in port, and a carry-in side door A loading-side drive unit that moves the opening / closing door, a loading-side opening / closing door that is provided at a loading / unloading opening of the cabinet and is movable between an opening position that opens the loading / unloading opening and a closing position that closes the loading / unloading opening, And an opening / closing control unit for controlling the operations of the loading-side driving unit and the unloading-side driving unit, and the opening / closing control unit opens the loading-side opening / closing door when the projector starts projection. The carry-in side drive unit is operated so as to move to the closed position, and the carry-out side drive unit is actuated so as to move the carry-out side opening / closing door to the closed position. Immediately after that, move the loading door to the open position. The carry-in side driver actuating the unloading-side driving section to move to the open position the unloading door actuates to cause.

According to the shot processing device having the above configuration, the projection material can be prevented from leaking out of the cabinet during projection by the projector, and the workpiece can be carried in and out immediately after the projection by the projector is completed. Processing time is reduced while leakage of the material is prevented or effectively suppressed.

In the shot processing apparatus of the present invention, it is preferable that the carry-in apparatus has a carry-in lifting mechanism that lifts and lowers the carry-in moving body.

According to the shot processing apparatus having the above-described configuration, the vertical position of the workpiece placed on the receiving portion can be changed by raising and lowering the loading lifting mechanism to which the loading bracket is attached.

In the shot processing apparatus of the present invention, it is preferable that the carry-out apparatus has a carry-out lifting mechanism that lifts and lowers the carry-out moving body.

According to the shot processing apparatus having the above configuration, the vertical position of the workpiece placed on the unloading receiving portion can be changed by raising and lowering the unloading lifting mechanism to which the unloading bracket is attached.

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

It is a top view which shows the shot blasting apparatus which concerns on one Embodiment of this invention. It is a front view which shows the shot blasting apparatus which concerns on one Embodiment of this invention. The front side of the cabinet and the back side of the cabinet are indicated by two-dot chain lines. It is a right view which shows the shot blasting apparatus which concerns on one Embodiment of this invention. It is a schematic block diagram which shows the projector and shutter in the shot blasting apparatus which concern on one Embodiment of this invention by apparatus side view. It is a figure which shows the carrying-in side opening / closing door in the shot blasting apparatus which concerns on one Embodiment of this invention. FIG. 5A is a schematic configuration diagram showing the carry-in side opening / closing door and the first drive unit in a front view, and FIG. 5B is a cross-sectional view taken along line 5B-5B in FIG. It is a schematic block diagram. It is a schematic block diagram which shows the basic composition of the carrying-in apparatus and carrying-out apparatus in the shot blasting apparatus which concerns on one Embodiment of this invention by apparatus side view. It is a front view which shows the carrying-in apparatus in the shot blasting apparatus which concerns on one Embodiment of this invention. It is a top view which shows the carrying-in apparatus in the shot blasting apparatus which concerns on one Embodiment of this invention. It is a schematic block diagram which simplifies and shows the principal part of the advance / retreat mechanism of the carrying-in apparatus in the shot blasting apparatus which concerns on one Embodiment of this invention by bottom view. It is an effect | action figure which shows the movement state at the time of carrying in of the carrying-in apparatus in the shot blasting apparatus which concerns on one Embodiment of this invention. FIG. 10 (A) shows an initial state at the time of carrying in, FIG. 10 (B) shows a state during movement at the time of carrying in, and FIG. 10 (C) shows an end state at the time of carrying in.

(Configuration of the embodiment)
A shot blasting apparatus 10 as a shot processing apparatus according to an embodiment of the present invention will be described with reference to FIGS. Note that an arrow FR appropriately shown in these drawings indicates a front side (hereinafter, simply referred to as a front side) of the apparatus front view, and an arrow UP indicates an upper side of the apparatus (hereinafter, simply referred to as an upper side). An arrow LH indicates the left side (hereinafter, simply referred to as the left side) as viewed from the front of the apparatus.
1 is a plan view showing the shot blasting apparatus 10, FIG. 2 is a front view showing the shot blasting apparatus 10, and FIG. 3 is a right side view showing the shot blasting apparatus 10. FIG. In FIG. 2, the front side of the cabinet 16 and the back side of the device are indicated by two-dot chain lines. Moreover, as the workpiece | work W of a shot blast process, the casting etc. which use a core like the cylinder block of a motor vehicle engine, etc. are applicable, for example.

As shown in FIG. 1, the shot blasting device 10 includes a cabinet 16 having a projection chamber 18 therein, a clamp device 34 provided in the cabinet 16 for clamping the workpiece W, and a projection material to the workpiece W in the cabinet 16. The projector 20 for projecting, the carry-in roller conveyor 12 for conveying the workpiece W to the cabinet 16, the unloading roller conveyor 52 for conveying the workpiece W from the cabinet 16, and the workpiece W on the carry-in roller conveyor 12 to the cabinet 16. A carry-in device 32 that carries in and a carry-out device 56 that carries the workpiece W from the cabinet 16 to the carry-out roller conveyor 52 are provided. The shot blasting device 10 carries the work W conveyed on the carry-on roller conveyor 12 into the projection chamber 18 of the cabinet 16 by the carry-in device 32 and clamps the work W by the clamp device 34 in the state in which the projector 20 Is a device that performs a shot blasting process on the workpiece W by projecting a projection material onto the workpiece W and unloading the workpiece W from the cabinet 16 to the unloading roller conveyor 52 by the unloading device 56.

The carrying-in roller conveyor 12 includes a conveyor base 12A provided on both sides in the transport width direction and a plurality of conveyor rollers 12B rotatably supported on the conveyor base 12A. The plurality of conveyor rollers 12B are arranged along the transport direction (the direction of the arrow X1), are connected to the drive motor 14, and are rotated by the drive force of the drive motor 14. Then, the carry-in roller conveyor 12 conveys the workpiece W placed on the conveyor roller 12 </ b> B toward the cabinet 16. An apparatus control unit (not shown) is connected to the drive motor 14 to control the timing at which the carry-in roller conveyor 12 carries the workpiece W into the cabinet 16. A screw conveyor 15 (see FIG. 3) for collecting the projection material is disposed below the carry-in roller conveyor 12.

The cabinet 16 is provided on the downstream side of the carrying line of the carry-on roller conveyor 12 (on the back side of the apparatus). Inside the cabinet 16 is formed a projection chamber 18 that performs surface processing (shot blasting) of the workpiece W by projecting the projection material onto the workpiece W. Projection of the projection material onto the workpiece W is performed by a projector 20 (see FIG. 2) described later.

On the front side of the apparatus in the cabinet 16, a carry-in port 16A for carrying the work W is formed. The carry-in port 16A is provided with a carry-in side opening / closing door 22 that is movable in the left-right direction of the apparatus between an open position that opens the carry-in port 16A and a closed position that closes the carry-in port 16A. As shown in FIG. 2, a first drive unit 24 for moving the carry-in side opening / closing door 22 is connected to the carry-in side opening / closing door 22.

FIG. 5A is a schematic configuration diagram in front view showing the carry-in side opening / closing door 22 and the first drive unit 24, and FIG. 5B is along the line 5B-5B in FIG. 5A. It is a schematic block diagram of a cross sectional view.

As shown in FIG. 5B, the carry-in side opening / closing door 22 includes a traveling frame 22A and a door body 22C attached to the traveling frame 22A on the projection chamber 18 side via a link member 22B. A tension spring 22H is disposed between the door main body 22C and the travel frame 22A, and the door main body 22C is biased toward the travel frame 22A by the tension spring 22H. A liner 22D is disposed on the surface of the door body 22C on the projection chamber 18 side. As shown in FIG. 5A, guide wheels 22E and 22F are provided above and below the door body 22C.

The first drive unit 24 includes a drive cylinder 24A that drives the traveling frame 22A of the loading-side opening / closing door 22 in the opening / closing movement direction (device left-right direction) by moving the rod back and forth in the device left-right direction. The drive cylinder 24A is attached to the fixed frame 23A, and is connected to an air supply source 24C via an air direction control device (such as a solenoid valve) 24B. The air direction control device 24B is connected to an opening / closing control unit 26 (blocked in the drawing), and the opening / closing control unit 26 controls the air direction control device 24B, so that the rod of the drive cylinder 24A is controlled. The direction of the device can be controlled to move back and forth in the left-right direction. Specifically, the opening / closing control unit 26 operates the first driving unit 24 so as to move the carry-in opening / closing door 22 to the closed position immediately before the projector 20 (see FIG. 2) starts projection, thereby projecting. Immediately after the machine 20 (see FIG. 2) finishes the projection, the first drive unit 24 is operated so as to move the loading side opening / closing door 22 to the open position.

5B, when the door main body 22C closes the carry-in port 16A, the door main body 22C is pressed against the carry-in port 16A (ie, the door main body is locked). Adjacent to the carry-in port 16 </ b> A of the cabinet 16 is a drive cylinder 25 </ b> A for pressing (which is an element grasped as a “door crimping device” in a broad sense). The drive cylinder 25A is disposed on the opposite side to the carry-in port 16A of the cabinet 16 with respect to the carry-in side opening / closing door 22 in the closed position via the fixed bracket 23B. In the present embodiment, a total of four drive cylinders 25A (see FIG. 5A) are arranged at positions where they hit the frame portion of the carry-in port 16A. The drive cylinder 25A is provided so that the rod can be advanced and retracted toward the door body 22C.

These drive cylinders 25A are connected to an air supply source 24E via an air direction control device (electromagnetic valve or the like) 24D shown in FIG. In order to simplify the drawing, only the connection relationship between one of the four drive cylinders 25A and the air direction control device 24D is shown in the drawing. The air direction control device 24 </ b> D is connected to the opening / closing control unit 26. The opening / closing control unit 26 can control the direction of rod advance / retreat in the drive cylinder 25A by controlling the air direction control device 24D. When the door body 22C is closed, the opening / closing control unit 26 controls the air direction control device 24D to advance the rod of the drive cylinder 25A, thereby moving the liner 22D (inner side surface of the door body 22C) to the frame of the carry-in port 16A. Press towards the part. The pressing function of the door main body 22C is provided in order to prevent or effectively suppress dust and the like from leaking from the projection chamber 18 during projection (in order to enhance the sealing performance). Note that the urging force of the tension spring 22H is used for releasing the press.

On the other hand, as shown in FIG. 1, a carry-out port 16 </ b> B for carrying out the workpiece W is formed on the back side of the apparatus in the cabinet 16. A carry-out opening / closing door 28 is provided at the carry-out port 16B. The carry-out side opening / closing door 28 has the same configuration as the carry-in side opening / closing door 22, and is movable in the left-right direction of the apparatus between an open position where the carry-out port 16B is opened and a closed position where the carry-out port 16B is closed. A second drive unit 30 for moving the unloading side opening / closing door 28 is connected to the unloading side opening / closing door 28. Although detailed illustration and detailed description are omitted, the second drive unit 30 has the same configuration as the first drive unit 24. Further, the opening / closing control unit 26 (see FIG. 5A) described above is second driven so as to move the unloading side opening / closing door 28 to the closed position immediately before the projector 20 (see FIG. 2) starts projection. The second drive unit 30 is operated so as to move the carry-out side opening / closing door 28 to the open position immediately after the projection unit 20 (see FIG. 2) finishes the projection. In addition, although detailed illustration and detailed description are abbreviate | omitted, the door holding function similar to the carrying-in side opening / closing door 22 is provided also in the carrying-out side opening / closing door 28. FIG.

Returning to FIG. 1, the carry-in device 32 is provided on the side (downstream of the device 16) opposite the cabinet 16 side of the carry-on roller conveyor 12 on the side downstream of the carry-in roller conveyor 12. Yes. The carry-in device 32 is a device that carries the workpiece W on the carry-in roller conveyor 12 into the projection chamber 18, and the detailed configuration will be described later.

On the other hand, a clamping device 34 is provided on the right side of the cabinet 16. Since a known device configuration (the device configuration disclosed in Patent Document 1 as an example) is applied to the clamp device 34, detailed description thereof is omitted, but the clamp device 34 is a workpiece carried into the projection chamber 18. A clamping mechanism that clamps W by a pair of clamping parts, and a rotation mechanism that rotates the clamping part around an axis in the left-right direction of the apparatus. A hydraulic unit 50 for operating the clamp device 34 is provided at a position adjacent to the clamp device 34.

Further, as shown in FIG. 2, a plurality of the projectors 20 described above are provided on the ceiling portion of the cabinet 16. In the present embodiment, a centrifugal projector is used as the projector 20, and centrifugal force can be applied to the projection material (shot, in this embodiment, a steel ball as an example) by the rotation of the impeller (impeller). . And the projector 20 accelerates a projection material with a centrifugal force, and projects a projection material with respect to the workpiece | work W clamped by the clamp apparatus 34 (refer FIG. 1) within the projection chamber 18. FIG. These projectors 20 are connected to a device control unit (not shown), and the projection timing and the projection time are controlled by the device control unit so that the projection device projects a projection material continuously for a predetermined time after the clamp device 34 holds the workpiece W. Has been.

FIG. 4 is a schematic configuration diagram of a side view of the apparatus showing the projector 20 and its surroundings. As shown in FIG. 4, the projector 20 has a substantially cylindrical projection port liner 36 attached to the projection opening 20A side of the control cage. A shutter 38 is disposed adjacent to the projection port 36 </ b> A of the projection port liner 36. The shutter 38 can be brought into and out of contact with the projection port 36A of the projection port liner 36, and an open position (a position indicated by a two-dot chain line in the drawing) for opening the projection port 36A, and a closed position (in the drawing, the drawing port 36A). (Position indicated by a solid line) around the shutter shaft 38X. The shutter 38 has a shutter liner 38A attached to the distal end portion, and a base end portion connected to a shutter driving unit 40 (moving its constituent elements in the drawing in a block form) for moving the shutter 38.

The shutter drive unit 40 includes a drive cylinder 40A that is fixed to the shutter shaft 38X and rotates the shutter 38 by pressing a drive arm 38B extending in the radial direction of the shutter shaft 38X. The drive cylinder 40A is connected to an air supply source 40C via an air direction control device (solenoid valve or the like) 40B. Further, the air direction control device 40B is connected to a shutter control unit 42 (illustrated as a block in the drawing). The shutter control unit 42 can control the direction of the forward / backward movement of the rod of the drive cylinder 40A by controlling the air direction control device 40B. Specifically, the shutter control unit 42 operates the shutter drive unit 40 so as to move the shutter 38 to the open position immediately before the projector 20 starts projection, and immediately after the projection by the projector 20 ends. The shutter drive unit 40 is actuated so as to move 38 to the closed position.

The shutter drive unit 40 is provided with two limit switches (not shown) adjacent to the drive arm 38B, and the two limit switches are in contact with the detected part fixed to the tip of the drive arm 38B. It can be separated. Specifically, an open detection limit switch that contacts the detected portion when the shutter 38 is in the fully open open position, and a close detection limit switch that contacts the detected portion when the shutter 38 is in the closed position. Are disposed. These limit switches are connected to the shutter control unit 42, and the shutter control unit 42 controls the air direction control device 40B based on detection information of the limit switch.

Returning to FIG. 2, the lower end of the introduction pipe 44 for supplying the projection material is provided above the projector 20, and the flow rate adjusting device 46 for adjusting the flow rate of the projection material is provided at the upper end of the introduction pipe 44. It has been. The flow rate adjusting device 46 is configured to limit the amount of the projection material supplied to the introduction pipe 44 to an optimum amount for projection, and by supplying the optimum amount of the projection material to the projector 20, A projection material is projected from the projector 20 at an optimum speed. The projector 20 is connected to a circulation device 48 via an introduction pipe 44 and a flow rate adjusting device 46.

The circulation device 48 includes an oscillating conveyor 48A, a bucket elevator 48C, a squeeze conveyor 48D, and a wind-selective magnetic separator 48E, and conveys the projection material projected by the projector 20 and circulates it to the projector 20. Let
The oscillating conveyor 48A is provided in the lower part of the cabinet 16, and is provided in a hopper into which the projection material and the like projected by the projector 20 are introduced. The oscillating conveyor 48A separates large burrs, collects them in a rough receiving box 48B provided on the outlet side of the oscillating conveyor 48A, and conveys the projection material and the like to the lower part of the bucket elevator 48C.

The bucket elevator 48C extends in the vertical direction of the apparatus and includes a pulley, an endless belt, a bucket, and the like (not shown). A pulley removal frame 49 is provided above the bucket elevator 48C in order to improve workability during maintenance. The bucket elevator 48C conveys the projection material and the like put in the bucket to the upper side of the apparatus, and sends the projection material and the like from the upper part to the squeeze conveyor 48D.

The squeeze conveyor 48D extends in the left-right direction of the apparatus, conveys the projection material or the like to the center side in the left-right direction of the apparatus, and sends it to the wind-selective magnet separator 48E.
The wind-selective magnetic separator 48E is configured to separate the reusable projection material from the sand and the coarseness mixed in the projection material, and flows the reusable projection material to the projection material tank 48F. Sand, coarseness, etc. are discharged by a sanding pipe 48G shown in FIG.

The sand removal pipe 48G is connected to a magnetic separator 48I through a fine powder removal screw conveyor 48H. The magnetic separator 48I separates the sand, coarseness, and the like that has flowed into a non-magnetic material and a magnetic material, discharges the non-magnetic material to the sand receiving box 48J, and discharges the magnetic material to the fine powder receiving box 48K.

The wind selective magnet separator 48E is connected to a dust collector (not shown) via a duct 48L and the like, and a settling chamber 48M is provided in the middle of the duct 48L. The settling chamber 48M is also connected to the roughing pipe 48N, and separates coarse substances out of the dust and the like sucked by the wind selection of the wind-selective magnet separator 48E and flows to the roughing pipe 48N. A rough receiving box 48P is disposed below the roughing pipe 48N, and a rough object passing through the roughing pipe 48N flows into the rough receiving box 48P. A dust collector (not shown) separates fine dust that has passed through the settling chamber 48M from the dust sucked by wind selection of the wind-selective magnet separator 48E, and exhausts the air into the air. Pour into a dust box below the dust collector.

The above-mentioned projection material tank 48F is arranged below the wind-selective magnetic separator 48E. Reusable projection material is accumulated in the projection material tank 48F from the wind-selective magnet separator 48E. The projection material tank 48 </ b> F is a temporary storage tank for supplying the projection material to the flow rate adjusting device 46, and is disposed on the upper side of the flow rate adjusting device 46. When the valve of the flow rate adjusting device 46 is opened, the projection material is projected by the projector 20 through the introduction pipe 44.

Returning to FIG. 1, the carry-out roller conveyor 52 is positioned on the opposite side (the back of the apparatus) of the carry-in roller conveyor 12 with the cabinet 16 in between, and the carry-line is a carry-in roller conveyor. It is provided so as to extend in the same direction as the 12 transport lines (the apparatus left-right direction). The carry-out roller conveyor 52 includes a conveyor base 52A provided on both sides in the width direction, and a plurality of conveyor rollers 52B rotatably supported on the conveyor base 52A. The plurality of conveyor rollers 52 </ b> B are arranged along the conveyance direction (arrow X <b> 2 direction), are connected to the drive motor 54, and are rotated by the drive force of the drive motor 54. Then, the carry-out roller conveyor 52 conveys the workpiece W placed on the conveyor roller 52B from the cabinet 16 in the direction from the apparatus left side to the apparatus right side. A device controller (not shown) is connected to the drive motor 54, and is a transport roll conveyor. A screw conveyor 55 (see FIG. 3) for collecting the projection material is disposed below the carry-out roller conveyor 52.

Further, the carry-out device 56 is provided on the side opposite to the side of the cabinet 16 (on the back side of the device) across the carry-out roller conveyor 52 on the side upstream of the transfer line of the carry-out roller conveyor 52. The carry-out device 56 is a device that carries the workpiece W sandwiched between the clamp devices 34 in the projection chamber 18 onto the carry-out roller conveyor 52.

Next, the carry-in device 32 and the carry-out device 56 described above will be described in detail with reference to FIGS. FIG. 6 is a schematic configuration diagram of the left side view of the device showing the basic configuration of the carry-in device 32 and the carry-out device 56. FIG. 7 is a front view showing the carry-in device 32, and FIG. 8 is a plan view showing the carry-in device 32. FIG. 9 is a diagram showing the carry-in traveling carriage 64 in a simplified view from the bottom. In FIG. 9, in addition to the loading rotary body 72 indicated by the solid line, a state where the loading rotary arm 72 indicated by the solid line is rotated 90 ° and a state where it is rotated 180 ° are indicated by two-dot chain lines, respectively. ing. 10 shows the rotational movement state of the carrying-in rotary arm 72 in a side view of the apparatus, and FIG. 9 shows the state where the carrying-in rotary arm 72 is shown by a solid line in FIG. 10A. 10B shows a state where the loading rotary arm 72 has been rotated 90 ° from the state shown in FIG. 10B, and FIG. 10C shows a state where the loading rotary arm 72 has been rotated 180 ° from the state shown in FIG. 10A. Is shown. Since the carry-out device 56 has the same configuration as the carry-in device 32, the front view and the plan view of the carry-out device 56 are omitted.

As shown in FIG. 6, the carry-in device 32 includes a carry-in receiving unit 60 </ b> A for placing the workpiece W thereon. The carry-in receiving portion 60 </ b> A is provided at the distal end portion of the carry-in bracket 60. The carry-in bracket 60 is connected to a carry-in advance / retreat mechanism 62 for moving the carry-in bracket 60 in the advance / retreat direction (the carry-in direction and the opposite direction). Hereinafter, the carry-in advance / retreat mechanism 62 will be described.

The proximal end portion of the carry-in bracket 60 is attached to a carry-in traveling carriage 64 as a carry-in moving body. The carry-in carriage 64 is movable in the direction of a carry-in line connecting the carry-in roller conveyor 12 side and the projection chamber 18 side (in the present embodiment, the apparatus front-rear direction).

As shown in FIGS. 7 and 8, wheels 66 are provided on both sides in the width direction of the carrying carriage 64, and the carrying device 32 guides the wheels 66 in a direction along the carry-in line. Guide rails 68 are provided. Further, as shown in FIGS. 6 and 7, a carry-in rail 70 is fixed (integratedly arranged) on the bottom surface side of the carry-in traveling carriage 64. Moreover, as shown in FIG. 9, the carrying-in rail 70 is extended in the direction orthogonal to a carrying-in line.

In the carry-in rail 70, a slider 72A serving as a carry-in moving unit is disposed at the distal end portion of the carry-in rotary arm 72. The slider 72A is guided by the carry-in rail 70 and is loaded into the carry-in rail 70. It can move along the longitudinal direction of 70 (namely, the left-right direction of the apparatus). The carry-in rotating arm 72 includes a slider 72A and an arm 72B having the slider 72A fixed to the tip. The base end portion of the arm 72B can rotate around the motor shaft 74A in the vertical direction of the apparatus.

The carry-in rotary arm 72 can rotate 180 ° around the motor shaft 74A on the base end side, so that the slider 72A presses the carry-in rail 70 in the direction of the carry-in line (left and right in the drawing). 18 (see FIG. 6) moves in a single string between a position 72A1 approaching and a position 72A2 spaced apart.

The carry-in rotary arm 72 is rotated by a carry-in drive motor 74. As shown in FIG. 6, the carry-in drive motor 74 is connected to a timing control unit 90 (shown in a block form in the drawing). The timing control unit 90 drives the drive timing and forward rotation of the carry-in drive motor 74. Control the reversal.

As described above, the carry-in advance / retreat mechanism 62 operates the carry-in drive motor 74 to link the carry-in rotary arm 72 and the carry-in traveling carriage 64 to bring the carry-in receiving portion 60A of the carry-in bracket 60 into the carry-in line. It can be moved back and forth along (see FIG. 10).

Further, the carry-in device 32 includes a carry-in lifting mechanism 76 for raising and lowering the carry-in carriage 64 and thus the carry-in bracket 60. Hereinafter, the loading lifting mechanism 76 will be described.

The loading elevating mechanism 76 is a mechanism for elevating the loading bracket 60 by elevating the loading carriage 64. As shown in FIG. 8, in the loading lifting mechanism 76, a lifting drive cylinder 80A is attached to a connection plate 78B spanned between a pair of left and right device frames 78A. The drive cylinder 80A is a hydraulic cylinder in the present embodiment, and is attached so as to be swingable around a shaft 78C (see FIG. 6) in the left-right direction of the apparatus. The drive cylinder 80A includes a rod 80B that can move forward and backward in the front-rear direction of the apparatus (left-right direction in FIG. 8) in plan view.

As shown in FIG. 6, the drive cylinder 80A is connected to an oil supply source 80D via a hydraulic control device (electromagnetic valve or the like) 80C. The hydraulic control device 80 </ b> C is connected to the timing control unit 90. The timing control unit 90 can control the direction of advancement / retraction of the rod 80B in the drive cylinder 80A by controlling the hydraulic control device 80C, and moves the rod 80B forward / backward when the carry receiving unit 60A is moved up and down.

The tip of the rod 80B is attached to one end of the first arm 82A so as to be rotatable around the left-right axis of the device. The other end of the first arm 82A is fixed to a shaft member 82B extending in the apparatus left-right direction. As shown in FIG. 8, both end portions of the shaft member 82B in the longitudinal direction are pivotally supported on the apparatus frame 78A side, and are rotatable around its own axis. One end portions of the second arms 82C and 82D are fixed between both longitudinal end portions of the shaft member 82B and the longitudinal center portion (arrangement portion of the first arm 82A). The other ends of the second arms 82C and 82D are attached to the elevating frame 84 via brackets 82E and 82F, and can be rotated around an axis in the left-right direction of the apparatus with respect to the brackets 82E and 82F. The above-described guide rail 68 is attached to the lifting frame 84.

One end of a second arm 82C on the right side of the apparatus (upper side in the drawing) is connected to one end of a connecting shaft 86 extending in the longitudinal direction of the apparatus so as to be rotatable around an axis extending in the lateral direction of the apparatus. Yes. The other end portion of the connecting shaft 86 is connected to one end portion of the third arm 88A so as to be rotatable around an axis in the left-right direction of the apparatus.

As shown in FIG. 6, the third arm 88A has a substantially L shape in a side view of the device, and a shaft member 88B extending in the left-right direction of the device is fixed to the bent portion. As shown in FIG. 8, both end portions of the shaft member 88B in the longitudinal direction are pivotally supported on the apparatus frame 78A side, and are rotatable around its own axis. The other end of the third arm 88A is attached to the elevating frame 84 via a bracket 88C, and is rotatable about an axis in the left-right direction of the device with respect to the bracket 88C. One end portion of the fourth arm 88D is fixed to the shaft member 88B near the end portion on the left side (lower side in the drawing). The other end of the fourth arm 88D is attached to the elevating frame 84 via a bracket 88E, and is rotatable about an axis in the left-right direction of the device with respect to the bracket 88E.

With the configuration described above, the loading elevating mechanism 76 moves the rod 80B in the drive cylinder 80A forward and backward to move the first arm 82A, the shaft member 82B, the second arms 82C and 82D, the connecting shaft 86, and the third arm 88A. The receiving member 60A for the loading bracket 60 shown in FIG. 6 can be moved up and down by interlocking the shaft member 88B, the fourth arm 88D, the lifting frame 84, and the loading carriage 64.

Next, the carry-out device 56 will be described. As described above, the carry-out device 56 has the same device configuration as the carry-in device 32 although there is a difference between the carry-out device and the carry-in device. The description is abbreviate | omitted and attached | subjected.

The unloading device 56 includes an unloading bracket 92, and the unloading bracket 92 includes an unloading receiving portion 92A for placing the workpiece W on the tip end side. The carry-out bracket 92 is connected to a carry-out advance / retreat mechanism 63 for moving the carry-out bracket 92 in the advance / retreat direction (the carry-out direction and the opposite direction). Hereinafter, the carry-out advance / retreat mechanism 63 will be described.

The base end of the carrying-out bracket 92 is attached to a carrying cart 94 for carrying out as a carrying body for carrying out. The carrying cart 94 for unloading is movable along the direction of the unloading line connecting the projection chamber 18 side and the unloading roller conveyor 52 side (in the present embodiment, the apparatus front-rear direction). An unloading rail 96 is fixed (integrated) on the bottom surface side of the unloading carriage 94, and the unloading rail 96 extends in a direction perpendicular to the unloading line.

In the carrying-out rail 96, a slider 98A serving as a carrying-out moving unit is disposed at the tip of the carrying-out rotary arm 98. The slider 98A is guided by the carrying-out rail 96 and is carried out. It can move along the longitudinal direction. The carry-out rotary arm 98 includes a slider 98A and an arm 98B in which the slider 98A is fixed to the tip. The base end portion of the arm 98B can rotate around the motor shaft 100A in the vertical direction of the apparatus. Then, the carry-out rotary arm 98 can rotate 180 ° around the motor shaft 100A on the base end side, whereby the slider 98A approaches the projection chamber 18 while pressing the carry-out rail 96 in the direction of the carry-out line. And a separated position (position shown in FIG. 6).

That is, the unloading rotary arm 98 can be rotated by the unloading drive motor 100 (schematically illustrated in the drawing). The carry-out drive motor 100 is connected to a timing control unit 90, and the timing control unit 90 controls the drive timing, forward rotation, and reverse rotation of the carry-out drive motor 100.

The timing controller 90 includes a timing at which the loading device 32 loads the workpiece W into the projection chamber 18 and a timing at which the loading device 56 unloads the workpiece W sandwiched between the clamp devices 34 onto the unloading roller conveyor 52. The carry-in device 32 and the carry-out device 56 are controlled so as to overlap.

The timing control unit 90 constitutes a part of the device control unit together with the opening / closing control unit 26 (see FIG. 5A) and the shutter control unit 42 (see FIG. 4).

Further, the carry-out device 56 includes a carry-out lifting mechanism 77 that raises and lowers the carry-out bracket 92 by raising and lowering the carry-out traveling carriage 94. As compared with the carry-in lift mechanism 76, the carry-out lift mechanism 77 is used for carrying in except for the point where the carry-out traveling carriage 94 is raised and lowered in place of the carry-in traveling carriage 64 and the arrangement position. The configuration is the same as that of the lifting mechanism 76. Therefore, in the lifting / lowering mechanism 77 for carrying out, the same components as those of the lifting / lowering mechanism 76 for loading are denoted by the same reference numerals as those of the lifting / lowering mechanism 76 for loading, and description thereof is omitted.

In the plan view of the shot blasting apparatus 10 shown in FIG. 1, reference numeral 102A is a projection material supply port, reference numeral 102B is a suction port, reference numeral 102C is an operation panel, reference numeral 102D is a pipe, reference numeral 102E is a screw conveyor, reference numeral 102F is Each drum separator is shown.

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

As shown in FIG. 1, in the shot blasting apparatus 10 according to the present embodiment, the workpiece W is first conveyed by a carry-on roller conveyor 12. The workpiece W on the carry-in roller conveyor 12 is carried into the projection chamber 18 of the cabinet 16 by the carry-in device 32 when reaching the downstream side of the transfer line of the carry-in roller conveyor 12. The workpiece W carried into the projection chamber 18 is clamped by the clamp device 34. Then, the workpiece W sandwiched between the clamp devices 34 is projected onto the projection material by the projector 20 (see FIG. 2) while being rotated, and is then carried out onto the carry-out roller conveyor 52 by the carry-out device 56. Here, by separating the carry-in side mechanism and the carry-out side mechanism, the work W before being processed is carried into the projection chamber 18 in parallel with the carry-out of the processed work W from the projection chamber 18. Can do. For this reason, the time (in other words, time other than projection) required for carrying in / out is suppressed.

Here, in the present embodiment, the timing at which the carry-in device 32 carries the workpiece W into the projection chamber 18 and the timing at which the carry-out device 56 carries the workpiece W sandwiched between the clamp devices 34 onto the carry-out roller conveyor 52 are given. The timing control unit 90 (see FIG. 6) controls the carry-in device 32 and the carry-out device 56 so as to overlap. For this reason, the parallel processing of loading / unloading the workpiece W is automatically performed.

As shown in FIG. 4, in the present embodiment, the shutter 38 provided in the projection port 36 </ b> A of the projector 20 has an open position where the shutter drive unit 40 opens the projection port 36 </ b> A and a closed position where the projection port 36 </ b> A is closed. Can move between. Immediately before the projector 20 starts projection, the shutter controller 42 operates the shutter drive unit 40 to move the shutter 38 to the open position, and immediately after the projector 20 finishes projecting. The shutter control unit 42 operates the shutter drive unit 40 so as to move the shutter 38 to the closed position. For this reason, there is no projection stop waiting time, and since the workpiece W can be carried in / out immediately after the projection by the projector 20 is finished, the processing time can be reduced.

Further, in the present embodiment, the loading side opening / closing door 22 provided at the carry-in port 16A of the cabinet 16 shown in FIG. 1 has an open position where the first drive unit 24 opens the carry-in port 16A, and a closed position where the carry-in port 16A is closed. Can move between. Further, the unloading side opening / closing door 28 provided at the unloading port 16B of the cabinet 16 can be moved by the second drive unit 30 between an open position where the unloading port 16B is opened and a closed position where the unloading port 16B is closed. it can. And just before the projector 20 (refer FIG. 2) starts a projection, the opening / closing control part 26 (refer FIG. 5 (A)) so that the carrying-in side opening / closing door 22 and the unloading side opening / closing door 28 may be moved to a closed position. Activates the first drive unit 24 and the second drive unit 30. Moreover, immediately after the projector 20 (refer FIG. 2) complete | finishes a projection, the opening / closing control part 26 (refer FIG. 5 (A)) so that the carrying-in side opening / closing door 22 and the carrying-out side opening / closing door 28 may be moved to an open position. ) Actuates the first drive unit 24 and the second drive unit 30. For this reason, it is possible to prevent the projection material from leaking out of the cabinet 16 during the projection by the projector 20 (see FIG. 2), and the work W is carried in and out immediately after the projection by the projector 20 (see FIG. 2) is finished. This is possible, and the processing time is reduced while leakage of the projection material is prevented or effectively suppressed.

When the shot blasting process on the workpiece W by the projector 20 shown in FIG. 4 is completed and the shutter 38 is closed, and the loading-side opening / closing door 22 and the unloading-side opening / closing door 28 shown in FIG. The holding of W is released, and the unloading process by the unloading device 56 and the loading process by the unloading device 32 shown in FIG. 6 are performed in parallel. Further, when the unloading device 56 unloads the workpiece W and the unloading device 32 unloads the workpiece W, and the clamping unit 34 clamps the workpiece W, the loading-side opening / closing door 22 and the unloading-side opening / closing door 28 are closed. Moved to. Then, when the clamping portion of the clamp device 34 is rotated around the axis in the left-right direction of the device, and the shutter 38 shown in FIG. 4 moves to the open position where the projection port 36A is opened, the projection (shot blasting) onto the workpiece W by the projector 20 is performed. Process) is started.

Next, the unloading process by the unloading device 56 shown in FIG. 6 will be described in detail. First, the unloading bracket 92 is advanced from the low standby position on the unloading roller conveyor 52 to the lower side of the clamping area of the clamp device 34 by the unloading advance / retreat mechanism 63 and is lifted by the unloading lifting mechanism 77. The workpiece W is placed on the unloading receiving portion 92A of the unloading bracket 92. Thereafter, the unloading bracket 92 unloads the workpiece W from the projection chamber 18 by being retracted by the unloading advance / retreat mechanism 63, and is returned to the original position by being lowered by the unloading lifting mechanism 77. Place on the carry-out roller conveyor 52.

Here, the operation of the carry-out advance / retreat mechanism 63 of the carry-out device 56 will be described. The unloading traveling carriage 94 to which the base end portion of the unloading bracket 92 is attached is movable along the direction of the unloading line connecting the projection chamber 18 side and the unloading roller conveyor 52 side. Further, a carry-out rail 96 extending in a direction orthogonal to the carry-out line is fixed (integratedly disposed) to the carry-out bracket 92. Then, the unloading rotary arm 98 having a slider 98A movable along the unloading rail 96 at the distal end rotates 180 ° by the unloading drive motor 100 around the motor shaft 100A at the base end. The slider 98A moves in a single string between a position approaching the projection chamber 18 and a position away from the position (shown in FIG. 6) while pressing the unloading rail 96 in the direction of the unloading line.

For this reason, since the unloading rotary arm 98 and unloading bracket 92 move at a low speed at the beginning and end of the moving operation, the impact on the workpiece W in the transfer area is suppressed, and the moving arm moves at a high speed in the middle of the moving operation. Therefore, the time required to carry out the workpiece W can be reduced.

In accordance with the backward movement of the unloading bracket 92 (unloading of the workpiece W) in the unloading device 56, the advancement of the loading bracket 60 (loading of the workpiece W) is performed in the loading device 32. The carrying-in process by the carrying-in device 32 will be described in detail. The workpiece W on the carrying-in roller conveyor 12 is placed on the carrying-in receiving portion 60A on the distal end side of the carrying-in bracket 60, and the carrying-in bracket 60 is carried out by the carrying-in lifting mechanism 76. And then the carry-in bracket 60 is advanced by the carry-in advance / retreat mechanism 62, and the carry-in bracket 60 is lowered by the carry-in lifting mechanism 76. After the workpiece W is clamped by the clamp device 34, the carry-in advance / retreat mechanism 62 moves the carry-in bracket 60 back to the original position.

Here, the operation of the carry-in advance / retreat mechanism 62 of the carry-in device 32 will be described. The carrying carriage 64 to which the base end portion of the carrying-in bracket 60 is attached is movable along the direction of the carrying-in line connecting the carrying-in roller conveyor 12 side and the projection chamber 18 side. Further, a carry-in rail 70 extending in a direction orthogonal to the carry-in line is fixed (integratedly arranged) to the carry-in bracket 60. Then, as shown in FIG. 9, a loading rotary arm 72 having a slider 72A movable along the loading rail 70 at the distal end is moved to the base end side by a loading drive motor 74 (see FIG. 6). By rotating 180 degrees around the motor shaft 74A, the slider 72A presses the carry-in rail 70 in the direction of the carry-in line, while the position 72A1 approaches the projection chamber 18 (see FIG. 6) and the position 72A2 moves away from the position 72A2. Single string movement between.

For this reason, the carrying-in rotary arm 72 and the carrying-in bracket 60 (see FIG. 10) move at a low speed at the beginning and end of the moving operation shown in FIGS. 10A and 10C. While the impact on the workpiece W is suppressed, the workpiece W moves at a high speed in the middle of the movement operation shown in FIG. In addition, after carrying in the workpiece | work W, the carrying-in bracket 60 and the carrying-in rotation arm 72 of the carrying-in apparatus 32 are original in order of FIG. 10 (B) and FIG. 10 (A) from the state of FIG. It is returned to the position.

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

(Supplementary explanation of the embodiment)
In the above embodiment, as shown in FIG. 1, the carry-in roller conveyor 12 is applied as the first conveyor and the carry-out roller conveyor 52 is applied as the second conveyor. A belt conveyor may be applied, and a carry-out belt conveyor may be applied as the second conveyor.

Moreover, in the said embodiment, although the centrifugal projector 20 (refer FIG. 2) is applied as a projector, a projector is the air nozzle type projection which pumps a projection material with compressed air and injects from a nozzle, for example. It may be another projector such as a projector.

In the above embodiment, the shot processing apparatus is the shot blasting apparatus 10, but the shot processing apparatus may be another shot processing apparatus such as a shot peening apparatus. Further, an apparatus having the same configuration as that of the shot blasting apparatus 10 may be used as the shot blasting apparatus / shot peening apparatus.

Moreover, in the said embodiment, as FIG. 6 shows, the carrying-in apparatus 32 and the carrying-out apparatus 56 are controlled by the timing control part 90, and such a structure is more preferable, For example, in a carrying-in apparatus and a carrying-out apparatus, Each operation start switch may be provided, and each operation may be started by manually operating these operation start switches.

In the above embodiment, the carry-in device 32 includes the carry-in bracket 60, the carry-in traveling carriage 64 as the carry-in moving body, the carry-in rail 70, the carry-in rotary arm 72, and the carry-in drive motor 74. Although such a configuration is more preferable, the carry-in device includes, for example, a carry-in bracket 60 and a drive cylinder that moves the carry-in bracket 60 forward and backward in the direction of the carry-in line. Other loading devices such as configured devices may be used.

In the above embodiment, the loading rail 70 is fixed to the bottom surface side of the loading traveling carriage 64 as the loading moving body. For example, the loading rail is integrated with the bottom surface portion of the loading moving body. May be formed (integrated arrangement).

Moreover, in the said embodiment, although the moving part provided in the front-end | tip part of the carrying-in rotation arm 72 becomes the slider 72A, the moving part provided in the front-end | tip part of the carrying-in rotation arm is, for example, the carrying-in rotation arm Other moving parts such as a sphere that can be rotated (rolled) at the tip end of the head may be used.

Further, in the above embodiment, the carry-in rotary arm 72 is capable of rotating by 180 ° around the motor shaft 74A on the base end side, and such a configuration is more preferable. For example, the carry-in rotary arm 72 is The motor shaft 74A on the base end side may be rotatable and movable within an angle range slightly smaller than 180 °.

As a modification of the above embodiment, instead of the carry-in lifting mechanism 76 of the carry-in device 32, a drive cylinder provided with a rod that is attached to the carry-in bracket 60 and moves back and forth (lifts and lowers) in the vertical direction; It is good also as a structure which provided the guide part which guides the bracket 60 to an apparatus up-down direction. Similarly, as a modification of the above-described embodiment, instead of the carry-out lifting mechanism 77 of the carry-out device 56, a drive cylinder provided with a rod that is attached to the carry-out bracket 92 and moves forward and backward (lifts and lowers), It is good also as a structure which provided the guide part which guides the bracket 92 for an apparatus to an apparatus up-down direction.

In the above-described embodiment, the unloading device 56 includes the unloading bracket 92, the unloading traveling carriage 94 as the unloading moving body, the unloading rail 96, the unloading rotary arm 98, and the unloading drive motor 100. However, the carry-out device includes, for example, a carry-out bracket 92 and a drive cylinder that moves the carry-out bracket 92 forward and backward in the direction of the carry-out line. Other unloading devices such as configured devices may be used.

In the above embodiment, the unloading rail 96 is fixed to the bottom surface side of the unloading traveling carriage 94 as the unloading moving body. For example, the unloading rail is integrated with the bottom surface of the unloading moving body. May be formed (integrated arrangement).

In the above embodiment, the moving means provided at the tip of the unloading rotary arm 98 is the slider 98A. However, the moving means provided at the tip of the unloading rotary arm is, for example, the unloading rotary arm. Other moving means such as a sphere that can be rotated (rolled) at the tip end portion thereof may be used.

In the above embodiment, the carry-out rotary arm 98 is capable of rotating 180 ° around the motor shaft 100A on the base end side, and such a configuration is more preferable. For example, the carry-out rotary arm 98 is The motor shaft 100A on the base end side may be rotatable and movable within an angle range slightly smaller than 180 °.

In the above embodiment, as shown in FIG. 4, the shutter 38 can rotate around the shutter shaft 38 </ b> X between an open position where the projection port 36 </ b> A is opened and a closed position where the projection port 36 </ b> A is closed. However, even if the shutter moves while drawing other movement trajectories, such as one that can slide between an open position that opens the projection opening and a closing position that closes the projection opening. Good.

In the above-described embodiment, the shutter 38 is moved to the closing position for closing the projection port 36A of the projector 20 when the projection by the projector 20 is ended by the control of the shutter control unit 42. Such a configuration is preferable, but a configuration in which such a shutter 38 is not provided is also possible.

Moreover, in the said embodiment, immediately after finishing the projection by the projector 20 (refer FIG. 2 etc.) by control of the opening / closing control part 26 shown by FIG. 5, the carrying-in side opening door 22 and the carrying-out side opening / closing door 28 (FIG. 1) is moved in the direction of the open position, and such a configuration is more preferable. For example, instead of the above configuration, a switch for operating the first drive unit and the second drive unit May be provided separately, and immediately after the projection by the projector is finished, the apparatus may be configured to move the loading-side opening / closing door and the unloading-side opening / closing door toward the open position by operating a switch.

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

10 Shot blasting equipment (shot processing equipment)
12 Roller conveyor for loading (first conveyor)
16 cabinet 16A carry-in port 16B carry-out port 18 projection chamber 20 projector 22 carry-in side opening / closing door 24 first drive unit 26 opening / closing control unit 28 carry-out side opening / closing door 30 second drive unit 32 carry-in device 34 clamp device 36A projection port 38 shutter 40 Shutter drive unit 42 Shutter control unit 52 Unloading roller conveyor (second conveyor)
56 Unloading device 60 Loading bracket 60A Loading receiving portion 64 Carriage for loading (moving body for loading)
70 Carry-in rail 72 Carry-in rotating arm 72A Slider (moving part)
74 Carrying-in drive motor 76 Carrying-in lifting mechanism 77 Carrying-out lifting mechanism 90 Timing control unit 92 Carrying-out bracket 92A Carrying-out receiving part 94 Carrying-out traveling carriage (moving body for carrying out)
96 Unloading rail 98 Unloading rotary arm 98A Slider (moving means)
100 Unloading drive motor W Workpiece

Claims (13)

1. In the projection chamber formed in the cabinet, a shot processing device that performs shot processing on the workpiece by projecting a projection material onto the workpiece by a projector,
   A first conveyor for conveying the workpiece to the cabinet;
   A second conveyor for conveying the workpiece from the cabinet;
   A loading device for loading the workpiece on the first conveyor into the projection chamber;
   An unloading device for unloading the work in the projection chamber onto the second conveyor;
   A shot processing apparatus comprising:
2. The shot apparatus according to claim 1, wherein the second conveyor is provided on the opposite side of the cabinet from the first conveyor.
3. The shot device according to claim 1, further comprising a clamp device that is provided in the cabinet and clamps the workpiece carried into the projection chamber.
4. Furthermore, a loading / unloading control unit for controlling operations of the loading device and the unloading device is provided,
   The carry-in / carry-out control unit is configured so that a timing at which the carry-in device carries the workpiece into the projection chamber and a timing at which the carry-out device carries the workpiece sandwiched between the clamp devices onto the second conveyor overlap. The shot processing apparatus according to claim 1, wherein the operation of the carry-in apparatus and the carry-out apparatus is controlled.
5. Furthermore, a loading / unloading control unit for controlling operations of the loading device and the unloading device is provided,
   The carry-in / carry-out control unit is configured so that a timing at which the carry-in device carries the workpiece into the projection chamber and a timing at which the carry-out device carries the workpiece sandwiched between the clamp devices onto the second conveyor overlap. The shot processing device according to claim 3, wherein the operation of the carry-in device and the carry-out device is controlled.
6. The carry-in device is
   A loading bracket having a loading receiving portion for placing a workpiece is attached, and a loading moving body movable in the direction of a loading line connecting the first conveyor side and the projection chamber side;
   A loading rail provided integrally with the loading moving body so as to extend in a direction perpendicular to the loading line;
   A loading rotation arm provided at a distal end portion with a loading movement portion movable along the loading rail, and rotatable around a proximal end portion;
   A loading drive for rotating the loading rotary arm,
   A position where the loading drive device rotates the loading rotation arm, whereby the loading moving portion of the loading rotation arm is separated from a position approaching the projection chamber while pressing the loading rail. Moving the loading moving body along the loading line by performing a single string movement in the direction of the loading line between
   The shot processing apparatus according to claim 1.
7. The carry-in device is
   A loading bracket having a loading receiving portion for placing a workpiece is attached, and a loading moving body movable in the direction of a loading line connecting the first conveyor side and the projection chamber side;
   A loading rail provided integrally with the loading moving body so as to extend in a direction perpendicular to the loading line;
   A loading rotation arm provided at a distal end portion with a loading movement portion movable along the loading rail, and rotatable around a proximal end portion;
   A loading drive for rotating the loading rotary arm,
   A position where the loading drive device rotates the loading rotation arm, whereby the loading moving portion of the loading rotation arm is separated from a position approaching the projection chamber while pressing the loading rail. Moving the loading moving body along the loading line by performing a single string movement in the direction of the loading line between
   The shot processing apparatus according to claim 3.
8. The unloading device is
   A carrying-out moving body that is mounted with a carrying-out bracket for carrying a work and that is movable in the direction of a carrying-out line connecting the projection chamber side and the second conveyor side,
   An unloading rail provided integrally with the unloading moving body so as to extend in a direction perpendicular to the unloading line;
   An unloading rotary arm provided with unloading moving means movable along the unloading rail at the distal end, and rotatable around the base end;
   An unloading drive device for rotating the unloading rotary arm;
   The unloading driving device rotates the unloading rotary arm, whereby the unloading moving part of the unloading rotating arm presses the unloading rail and moves away from the position approaching the projection chamber. Moving the unloading moving body along the unloading line by moving a single string in the direction of the unloading line between
   The shot processing apparatus according to claim 1, comprising:
9. The unloading device is
   A carrying-out moving body that is mounted with a carrying-out bracket for carrying a work and that is movable in the direction of a carrying-out line connecting the projection chamber side and the second conveyor side,
   An unloading rail provided integrally with the unloading moving body so as to extend in a direction perpendicular to the unloading line;
   An unloading rotary arm provided with unloading moving means movable along the unloading rail at the distal end, and rotatable around the base end;
   An unloading drive device for rotating the unloading rotary arm;
   The unloading driving device rotates the unloading rotary arm, whereby the unloading moving part of the unloading rotating arm presses the unloading rail and moves away from the position approaching the projection chamber. Moving the unloading moving body along the unloading line by moving a single string in the direction of the unloading line between
   The shot processing apparatus according to claim 3, comprising:
10. A shutter provided at a projection port of the projector and movable between an open position for opening the projection port and a closed position for closing the projection port;
    A shutter drive unit for moving the shutter;
    When the projection by the projector is started, the shutter driving unit is operated so as to move the shutter to the open position, and the shutter is moved to the closed position immediately after the projection by the projector is finished. A shutter control unit for controlling the shutter drive unit;
    The shot processing apparatus of Claim 1 or 2 provided with these.
11. A loading-side opening / closing door provided at a loading port of the cabinet and movable between an open position for opening the loading port and a closed position for closing the loading port;
    A loading-side drive unit that moves the loading-side opening / closing door; and
    An unloading side opening / closing door provided at the unloading port of the cabinet and movable between an open position for opening the unloading port and a closed position for closing the unloading port;
    A carry-out side drive unit for moving the carry-out side open / close door;
    An open / close control unit that controls the operation of the carry-in side drive unit and the carry-out side drive unit,
    The open / close control unit operates the carry-in side drive unit to move the carry-in side opening / closing door to the closed position and moves the carry-out side open / close door to the closed position when the projector starts projection. Actuate the unloading side drive unit,
    The open / close control unit further operates the carry-in side drive unit to move the carry-in side open / close door to the open position and moves the carry-out side open / close door to the open position immediately after the projector finishes projecting. The shot processing apparatus according to claim 1, wherein the carry-out side drive unit is operated so as to be moved.
12. The shot processing apparatus according to claim 6, wherein the carry-in apparatus has a carry-in lifting mechanism that lifts and lowers the carrying-in moving body.
13. The shot processing apparatus according to claim 8, wherein the carry-out device has a carry-out lifting mechanism that lifts and lowers the carry-out moving body.

Images