JP6746186B2 - Shot blasting equipment - Google Patents

Description

The present invention relates to a shot blasting device for deburring a projection material on a processed material.

The conventional shot blasting apparatus includes a case body in which a blast processing chamber having one side wall opened, a fixed rail fixed so as to project outward from the opened side wall of the case body, An open/close door that slides while being guided by a fixed rail and that opens and closes one side wall that opens in the case body, and slides while being guided by an inner fixed rail that is fixed to the case body and is attached to the open/close door. A barrel support frame, a barrel rotatably attached to the barrel support frame in an inclined state, a barrel drive device for rotating the barrel and attached to the barrel support frame, and a wall surface of the barrel. A discharge port attached so as to open the barrel, a discharge port opening device for automatically opening the discharge port, and a process for automatically discharging the processed material after the discharge port is opened by the discharge port opening device There is known a "shot blasting device including a material discharging means" (Patent Document 1).
However, in such a shot blasting device, after the barrel is slid laterally, the discharge port of the barrel is opened to discharge the processed material. However, there is a drawback in that it requires a device and the like, which is very expensive.

JP, 2016-7655, A

In view of the above-mentioned conventional drawbacks, the present invention has an object to provide a shot blasting device which can save space and can efficiently take out a processed material from the barrel to efficiently perform a processing operation. ..

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

In order to achieve the above object, a shot blasting apparatus of the present invention comprises a case body in which a blast treatment chamber is formed, and a substantially cylindrical barrel rotatably attached to the blast treatment chamber of the case body and having a front opening. And a shot blasting device having a projector for projecting a projection material onto an object to be processed in the barrel, wherein the barrel has a discharge port for discharging the object to be processed on a part of a peripheral side surface, and the discharge port. A mounting member is fixed to the peripheral side surface on the side, and the other end has a cover member that extends apart from the discharge port, and the cover member rotates the barrel in one direction. In this case, the object to be processed is covered so as not to be discharged from the discharge port, and the object to be processed is discharged from the discharge port when rotated in the other direction.

As is apparent from the above description, the following effects can be obtained in the present invention.
(1) In the invention according to claim 1, when the barrel is rotated in one direction, the barrel is covered so as not to discharge the object to be treated, and when rotated in the other direction, Since the cover member for discharging the object to be processed from the discharge port is provided, the object to be processed can be discharged only by changing the rotation direction of the barrel.
Therefore, it is possible to save space without sliding the barrel.
(2) According to claim 2, the same effect as in (1) is obtained, and since the cover member is formed so as to rise from one end of the discharge port, a space for blasting the object to be processed is provided in the barrel. It can be taken large.
(3) According to claim 3, since the same effects as (1) and (2) are obtained, and since the cover member is formed in a substantially L shape, when the barrel is rotated in one direction, It is possible to more reliably prevent the object to be processed from being discharged from the discharge port.

1 to 7 are explanatory views showing a first embodiment of the present invention.
8 and 9 are explanatory views showing a second embodiment of the present invention.
The front view of the shot blasting apparatus of 1st Embodiment. Schematic cross section of shot blasting machine Front view of the barrel. FIG. 4 is a sectional view taken along line 4-4 of FIG. 3. 5 is a sectional view taken along line 5-5 of FIG. Explanatory drawing at the time of rotating a barrel in one direction. Explanatory drawing at the time of rotating a barrel in the other direction. The front view of the shot blasting apparatus of 2nd Embodiment. Explanatory drawing at the time of rotating a barrel in the other direction.

Hereinafter, the present invention will be described in detail with reference to the embodiments for carrying out the present invention shown in the drawings.
In addition, one direction means a direction of rotation when performing a blasting process of projecting a projection material onto an object to be processed, and the other direction means a direction of rotation opposite to one direction. One direction may be clockwise (CW) or counterclockwise (CCW).
For example, when one direction is CW, the other direction is CCW.
In the present embodiment, one direction will be described as CCW and the other direction will be described as CW.

In the first embodiment for carrying out the present invention shown in FIGS. 1 to 7, 1 is a shot blasting apparatus of the present invention for removing burrs from a large object 2 (molded product).
As shown in FIGS. 1 and 2, this shot blasting device 1 is a case body 3 having a box-like appearance, and opening/closing doors 4 and 5 are provided on the front side of the box-like case body 3 in the vertical direction. There is. A blast processing chamber 6 is formed inside the upper opening/closing door 4, and the blast processing chamber 6 is provided with a substantially cylindrical barrel 7 having a front surface opened in an inclined state. The barrel 7 is attached to a barrel rotating device 9 via a mounting shaft 8 that is coaxial with the shaft center of the cylindrical barrel 7, and the barrel rotating device 9 allows the shaft center of the substantially cylindrical barrel 7 to move. It can rotate around a fulcrum. Further, a projector 11 for projecting the projection material 10 is provided at a position (a rear surface portion) facing the opening portion of the barrel 7.

Inside the lower opening/closing door 5 of the case body, a hopper 13 provided at a lower portion of the blast processing chamber 6 and a lower portion of the hopper 13 are continuously provided via an elastic material 12, and the hopper 13 A sorting device 14 is provided which sorts out large burrs, shot materials, and small burrs as they fall.

Further, in order to efficiently remove burrs and the like in the hopper 13 and the sorting device 14, a vibrating device 15 that vibrates them is also provided.
The sorting device 14 has a multi-stage sieve shape, and the uppermost sieve has a roughness such that large burrs and the object to be treated 2 remain, and the second stage has a roughness such that small burrs remain. Only the projection material 10 falls to the bottom.

The sorting device 14 can supply the large burr storage container 16 for storing the large burr thus sorted, and the projection material 10 sorted by the sorting device 14 through the suction hose 17 of the projector 11. The projection material storage tank 18 thus provided and the small burr storage container 19 for storing the small burr selected by the selecting device 14 are provided.

As shown in FIGS. 3 to 5, the barrel 7 has a substantially cylindrical shape with a small diameter in the upper and lower sides, and an upper surface (a surface opposite to the mounting shaft 8) is opened. Charge 2 into barrel 7. The barrel 7 is provided with a large number of through holes 20 having a size through which the shot material 10 and burrs pass, and the hopper 13 receives the shot material 10 and the like dropped from the through holes 20.

A discharge port 21 for discharging the processed object 2 is formed on the peripheral side surface 7 a of the barrel 7. In the present embodiment, the discharge port 21 has a width of about 1/12 of the peripheral side surface 7a of the barrel 7, and the length from the rear surface of the barrel 7 to the portion where the outer diameter of the front barrel 7 is small. Is provided. The width and length of the discharge port 21 can be changed as appropriate.

Further, the mounting end portion is fixed to the side portion of the discharge port 21 (in the present embodiment, the left side portion of the discharge port 21 when viewed from the front of the barrel 7), and the other end portion rises. Thus, the cover member 22 is formed so as to extend away from the discharge port 21. Between the other end 22a of the cover member 22 and the inner surface of the barrel 7 to the discharge port, there is provided an object-to-be-processed portion 23 having a size that allows at least the object to be processed 2 to pass therethrough.

This cover member 22 is a substantially L-shaped plate-like member having the other end 22a bent to the side opposite to the discharge port 21, and from the discharge port 21 when the barrel 7 is rotated in one direction. The object 2 to be processed is covered so as not to be discharged, and when rotated in the other direction, the object 2 to be processed is guided so as to be discharged from the discharge port 21.

In this embodiment, the cover member 22 is a plate member having a substantially L shape, but the cover member 22 may be entirely curved.
The length of the cover member 22 is the gap between the other end 22a of the cover member and the inner surface of the barrel 7 (the size of the portion indicated by a in FIG. 5) or the minimum gap of the workpiece passage portion 23 ( At least one of the dimensions (shown as b in FIG. 5) is 1.1 times or more the maximum diameter (maximum dimension) of the object to be treated 2 and 1/2 or less of the barrel diameter, more preferably the object 2 to be treated. Is 1.2 times or more the maximum diameter (maximum dimension) of the barrel and is ⅔ or less of the barrel diameter.

The length of the cover member 22 should be 1/2 or less of the diameter of the barrel 7 (the size of the portion indicated by a in FIG. 5) between the other end 22a of the cover member and the inner surface of the barrel 7. When the length is long, the object to be processed easily enters the object passing portion 23 during the blast treatment, but the head of the object to be processed 2 becomes large, and the processing performance can be improved.

The size of these gaps and the length of the cover member 22 can be appropriately changed depending on the object 2 to be processed and the processing method.
The cover member 22 also has many through holes 20 similar to those formed in the barrel 7.

To explain the details of the operation, in the present embodiment, when the barrel 7 is rotated in one direction (CCW), as shown in FIG. Blasted while rotating around. When the cover member 22 reaches the vicinity of the peripheral side surface of the lower portion of the barrel 7, the workpiece 2 is lifted by the cover member 22, and the mounting end portion of the cover member 22 is upward (direction of the barrel 7 from 1 o'clock to 2 o'clock in a front view). When it is rotated up to (near), the workpiece 2 drops near the lower peripheral surface. At this time, the discharge port 21 has already reached the upper position (near the direction from 2 o'clock to 3 o'clock when the barrel 7 is viewed from the front), so that the object to be treated 2 is not discharged from the discharge port 21. Further, at this time, even if the object to be processed 2 passes between the other end portion 22a of the cover member 22 and the inner surface of the barrel 7 (the entrance portion of the object to be processed passage portion 23), the object to be processed is directed toward the discharge port 21. The object 2 does not move, passes through the entrance portion of the object passing portion 23 again, and moves to the vicinity of the peripheral side surface of the lower portion of the barrel 7.

When the barrel 7 is rotated in the other direction (CW), as shown in FIG. 7, the workpiece 2 is located near the lower peripheral surface of the barrel 7 due to gravity, and the other end 22a side of the cover member 22 is , The workpiece 2 passes through the workpiece passage portion 23 before reaching the peripheral side surface of the barrel 7 in the vertically downward direction before the mounting end portion. After that, when the discharge port 21 reaches the vicinity of the peripheral side surface of the lower portion of the barrel 7, the object 2 is discharged from the discharge port 21.

At this time, the object to be processed 2 that has passed through the object to be processed passage portion 23 is guided by the cover member 22 and is reliably discharged from the discharge port 21.

When using the shot blasting apparatus 1 of the present invention, the upper opening/closing door 4 is opened and the object 2 to be processed is put into the barrel 7 in the blast processing chamber 6.
When the object 2 to be processed is charged into the barrel 7, it is preferable that the discharge port 21 is positioned vertically above.

After that, in the present embodiment, while the barrel 7 is rotated in one direction (CCW), the projection material 10 is projected onto the object 2 to be processed in the barrel 7 by the projector 11, and the burr of the object 2 to be processed is projected. Etc. are removed. In addition, in the present embodiment, the designated portion such as the drawing may further include a refrigerant supply device that supplies a refrigerant into the blast processing chamber 6 when performing the blast processing.

When the processing of the object to be processed 2 is completed, the barrel 7 is rotated in the other direction (CW), the object to be processed 2 passes through the object to be processed passage portion 23, and the object to be processed 2 is discharged from the discharge port 21.

The object to be processed 2 discharged from the discharge port 21 falls into the sorting device 14 via the hopper 13. When collecting the processing object 2, the operation of the shot blasting apparatus 1 is stopped, the lower opening/closing door 5 is opened, and the processing object 2 of the sorting apparatus 14 is collected. The lower opening/closing door 5 may be provided with a small window (not shown) for collecting the object 2 to be processed.

When processing at a low temperature, it is not necessary to open the upper opening/closing door 4 wide to open and close the barrel 7 for loading/unloading the processed material (it can be taken out from the small window of the lower opening/closing door 5), so that cold air does not escape and intrusion of outside air does not occur. Prevents and does not waste cooling gas (carbon dioxide or nitrogen).

[Different Modes for Carrying Out the Invention]
Next, different modes for carrying out the present invention shown in FIGS. 8 and 9 will be described. In the description of these different modes for carrying out the present invention, the same components as those of the first mode for carrying out the present invention will be denoted by the same reference numerals, and redundant description will be omitted.

In the second embodiment for carrying out the present invention shown in FIGS. 8 and 9, the main difference from the first embodiment for carrying out the present invention lies in the lower portion corresponding to the discharge port 21 of the barrel 7. In this manner, the shooter 24 is provided, and when the barrel 7 is rotated in the other direction, the workpiece 2 discharged from the discharge port 21 is discharged through the shooter 24. Even if the shot blasting apparatus 1A is used, the same effects as those of the first embodiment for carrying out the present invention can be obtained, and the object 2 to be processed can be automatically discharged to the outside of the apparatus.
When the shooter 24 is provided in the lower portion of the hopper 13 as in this embodiment, the through hole 20 is formed in the shooter 24 so that only the burr and the projection material 10 fall into the sorting device 14. ..

In addition, in the embodiment of the present invention, the barrel has been described as having a substantially cylindrical shape having a small diameter in the upper and lower portions, but a barrel having a substantially polygonal column shape (for example, a substantially hexagonal column shape or a substantially octagonal column shape) having a small diameter upper and lower portions may be used. When using a large barrel, a plurality of projectors may be provided.
Also, the cover member is located at the mounting end portion at a position apart from the side portion of the discharge port as long as it is a position that can cover the object to be processed from the discharge port when the barrel is rotated in one direction. May be used, and one in which the other end is not bent may be used.

The present invention finds application in the industry of manufacturing shot blasting equipment.

1, 1A: Shot blasting device,
2: Object to be processed 3: Case body
4: Upper opening/closing door, 5: Lower opening/closing door,
6: Blast processing chamber, 7: Barrel,
8: Mounting shaft, 9: Barrel rotating device,
10: Projection material, 11: Projector,
12: elastic material, 13: hopper,
14: Sorting device, 15: Vibration device,
16: Large burr storage container, 17: Suction hose,
18: Projectile material storage tank, 19: Small burr storage container,
20: through hole, 21: outlet,
22: cover member, 23: object passage portion,
24: Shooter.

Claims (3)

A case body in which a blast processing chamber is formed, a substantially cylindrical barrel rotatably attached to the blast processing chamber of the case body, and a front surface is open, and a projection material for projecting projection material onto an object to be processed in the barrel. A shot blasting device having a machine, wherein the barrel has a discharge port for discharging the object to be processed on a part of a peripheral side surface, and a mounting end portion is fixed to the peripheral side surface on the discharge port side, while the other The cover member has an end portion that extends away from the discharge port, and the cover member covers the object to be discharged from the discharge port when the barrel is rotated in one direction. However, the object to be treated is discharged from the discharge port when rotated in the other direction. The shot blasting apparatus according to claim 1, wherein the cover member has a mounting end portion fixed to a side portion of the discharge port . The shot blasting apparatus according to claim 1 or 2, wherein the cover member is formed in a plate shape and is substantially L-shaped.

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