JPS58102670A - Vertical rotary barrel finisher - Google Patents

Abstract

PURPOSE:To aim at making a cylindrical body attachable or detachable to and from the desired position of a barrel cell in an accurate and easy manner, by constituting the cylindrical body available for media rejection from the central part of the barrel cell so as to cause its lower part clinging to the bottom of the barrel cell to be opened. CONSTITUTION:A strut 21 is erected at the central part of a barrel cel 10 while a cylindrical body 23 is set to this strut 21 in coaxial form in addition. The cylindrical body 23, which is for rejecting media 24 from the central part of the inside of the barrel cell 10, opens its lower part while closing its topside and desirably its lower peripheral parts are thinly formed in thickness, then guide plates 25a and 25b each having through holes to insert the strut 21 through are installed at two spots, top and bottom in the inside. With this constitution, when the cylindrical body 23 is replaced, a possibility of inserting these media between both plates is seldom or never, so that the cylindrical body 23 can be attached or detached to and from the desired position of the barrel cell 10 in a regular state so accurately and easily.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention is a deaf-type barrel embroidery machine that rotates a media together with a barrel tank, and inserts and holds a workpiece (hereinafter referred to as a workpiece) into the media.

Workpiece polishing in this type of vertical barrel processing machine is caused by the relative speed difference between the media rotating and the workpiece stopping or rotating, but the speed of the media is higher than the center of the barrel tank. is also faster on the outer periphery,
However, since the media layer becomes deeper on the outer periphery of the barrel tank,
For workpiece polishing, insert the workpiece into the outer circumference of the barrel tank.
I will keep it and do it. Therefore, since the center of rotation of the barrel tank is not directly subjected to the polishing process, it is preferable that the media be unevenly distributed to some extent on the outer circumferential side of the barrel tank.

Conventionally, as shown in FIG. 1, a barrel processing machine that meets these demands has been configured to rotate a barrel tank 2 with a cylindrical body 1 fixed to the center of rotation about a vertical axis, and perform nine-barrel processing. machine is known. However, in such a barrel processing machine, since the cylindrical body 1 is fixed and has nine configurations, the inner circumferential surface of the one barrel tank 2 and the outer circumferential surface of the cylindrical body 1 are
Therefore, the width of the annular space formed is fixed,
However, for small workpieces, the annular space is unnecessarily wide, and for large workpieces, the annular space is narrow. There was a problem that the size of the work that could be done was limited and the versatility was poor.

As a barrel processing machine capable of solving such problems, there has been conventionally known a barrel processing machine using a barrel tank configured so that the cylindrical body can be exchanged, as shown in FIGS. 2 and 3. In other words, when the upper part of the barrel tank 2A shown in FIG. It is fixed by 4A. Moreover, the barrel tank 2B shown in FIG. 3 has a cylindrical body 1 with a closed bottom.
B is fixed to the center of rotation of the barrel tank 2B by a bolt 4B penetrating the bottom surface 3B thereof. For any of these barrel tanks 2M and 2B, the cylindrical bodies IA and IB can be removed by removing the cylindrical bodies 4A and 4B.Therefore, multiple types of cylindrical bodies IA and 1B with different outer diameters are prepared. By attaching appropriate cylindrical bodies IA and III to the barrel tanks 2A and 28 as necessary, the barrel tank 2A is formed.

The annular space within 2B can be adapted to the size of the workpiece to be machined. However, each of the barrel tanks 2M and 2B described above has a structure in which the inner bodies IA and 1B are fixed to the bottom surfaces of the barrel tanks 2A and 2B with bolts 4^ and 4BK.
7. It is necessary to bring the flange 3A or the bottom surface 3B of the cylindrical body IB into close contact with the bottom surface of the barrel tanks 2A, 2B, but since the area is large, there is a gap between the flange 3A or the bottom surface 3B and the bottom surface of the barrel tanks 2M, 2B. In an extreme case, the cylindrical body 1mm and IB tilt when the media is sandwiched between them, and the barrel tanks 2A and 2
There is a risk that vibration will occur when B is rotated. Therefore, in each of the above barrel tanks 2A and 2B, the cylindrical bodies IA and IB
Each time the cylindrical body was replaced, it was necessary to wipe away the media at the location, making it troublesome for one person to convert the cylindrical body and IB.

Also, as shown in Figure 2, there are 2 barrel tanks (KTo) and 4
Since A is directly exposed to the media, there is a problem that the bolt 4m may be rusted or foreign matter such as media fragments may adhere to and accumulate on the bolt 4m. , Pol) 4B had to be installed and removed inside the cylindrical body IB, which caused problems such as very difficult work.

This invention was made in view of the above circumstances, and an object of the present invention is to provide a vertical barrel processing machine that can accurately and easily attach and detach a cylindrical body to a proper position in a barrel tank. This is the purpose. The feature of this invention is that a support is provided at the center of rotation of the barrel tank, a cylindrical body with an open bottom end is placed over the support, and the lower peripheral edge of the cylindrical body is attached to the bottom of the barrel tank. The cylindrical body is attached at its upper end to the upper end of the column in a detachable manner.

An embodiment of the present invention will be described above with reference to FIG. It is a cylindrical body, and a rotating shaft 12 that is rotatably supported by a bearing 11 is attached to the center of the lower surface of the body, and the bearing 11 is attached to the base 1.
Therefore, the barrel tank 10 is rotatably supported on the base 13.
t""ru・.

A pulley 15 is attached to the lower end of the rotating shaft 12 protruding from the bearing 11, and a pulley 19 is attached to the drive shaft 18 of the motor 17, which is attached to the base 13 via a bracket 16. By winding a belt 20 around these pulleys 15 and 19, the barrel tank 10 is rotated by a motor 17.

A support 21 is erected at the center of rotation of the barrel tank 100, and a center holder 22 for stopping rotation is provided near the lower end of the support 21C, and a cylindrical body 23 is concentrically attached to the support 21. . This cylindrical body 23 is rounded to expel the media 24 from the center of the barrel tank 10, and its structure is as shown in FIGS. 4 to 6.

In other words, as shown in these figures, the cylindrical body 23 is open at the lower end and closed at the upper end, and preferably has a thinner peripheral edge at the lower end, and has two upper and lower parts inside. Guide plates 25m and 25b having through holes for inserting the pillar 21 are attached to the lower guide plate 25b, and a ninth notch 26 that engages with the protrusion 22 provided on the pillar 21 is attached to the lower guide plate 25b. A through hole 28 for inserting a fixing bolt 27 is further formed at the center of the upper end. The cylindrical body 23 having the above structure is placed over the support column 21 from above, and the guide plate 23 is placed over the support column 21 from above.
By inserting the pillar 21 into the through hole of 5m and 25b, it is positioned concentrically with respect to the pillar 21, and by engaging the protrusion 22 and the notch 26, the rotation of the paper is stopped. The identification bolt 27, which is tightly attached to the bottom surface of the barrel tank 10 and inserted into the through hole 28, is screwed into the upper end of the support 21, thereby fixing the identification bolt 27 to the support 21.

Two guide rods 29m and 29b are erected on the base 13 so as to sandwich the barrel tank 10, and a beam 3 is installed between the upper ends of these guide rods 29a and 29b.
A pneumatic cylinder 31 operated by hydraulic pressure is mounted downward in the center of the barrel tank 10, and above the barrel tank 10, both ends are movable up and down relative to the guide rods 29m and 29b. The piston rod 33 of the cylinder 31 is fixed to the lifting block 32 (an engaged lifting block 32 is provided), so that the lifting block 32 can be moved up and down by the cylinder 31. There is.

The work 34 is placed in the barrel tank 10 on the lifting block 32.
A spindle unit 35 is attached to be inserted into and held in the media 24 between the inner peripheral surface of the cylinder body 23 and the outer peripheral surface of the cylindrical body 23. This spindle unit 35 has a chuck spindle 36 that grips and rotates a workpiece 34, and is horizontally movably attached to the lifting block 32 via a bracket 37 provided with a horizontally long hole.

The chuck spindle 36 is connected to the lifting block 3
The workpiece 34 is connected to a motor 39 mounted on the workpiece 2 via a holding frame 38 through pulleys 40, 41 and a belt 42, so that the workpiece 34 is rotated by the motor 39.

Note that the reference numeral 43 in FIG. 4 indicates a cover provided to surround the barrel tank 10, and the bottom of this cup <-43 is
Pour the coolant leaking into the cover 43 into the coolant tank (
A discharge nozzle 44 is provided for guiding the fluid to a pipe (not shown).

Next, to explain the operation of the nine-barrel processing machine constructed as described above, when one barrel tank 10 is rotated by the motor 17 with the media 24 accommodated, the media 24
4 rotates together with the barrel tank 10 under the influence of centrifugal force (while being pushed toward the inner peripheral surface of the barrel tank 10). On the other hand, the lifting block 32 is pulled up to the upper limit position by the cylinder 31, and in this state, the workpiece 34 is moved to the spindle unit 35.
By lowering the lifting block 32, the media 24 in the barrel tank lθ is
At the same time, the workpiece 34 is rotated by the motor 39. In that case, the fixing position of the spindle unit 35 is adjusted in advance so that the workpiece 34 is located midway between the inner circumferential surface of the barrel tank IO and the outer circumferential surface of the cylindrical body 23. 24 is work 34
Since the workpiece 34 revolves around and rotates on its own axis, the workpiece 34 can be entirely polished due to the relative speed difference between the two.

By the way, it is preferable that the distance between the workpiece 34 and the inner circumferential surface of the nozzle tank lO and the outer circumferential surface of the cylindrical body 23 be set to about 1 to 3α from the viewpoint of improving polishing efficiency and effective use of the media 24. , it is necessary to replace the cylindrical body 23 depending on the size of the workpiece 34 to be machined. Therefore, to explain the replacement operation of the cylindrical body 23 in the above-mentioned no-rel processing machine, after removing the fixing bolt 27 and removing the existing cylindrical body 23 from the support column 21, depending on the size of the workpiece 34 to be machined, Then, the large diameter or small diameter cylindrical body 23 is placed over the column 21 from above, and then the cylindrical body 23 is attached to the column 21 with the fixing bolt 27 in the same way as in the previous case.
Fix it to the upper end of 1. FIG. 7 is a sectional view showing the small diameter cylindrical body 23.

However, in the barrel processing machine described above, since the width of the lower end peripheral edge of the cylindrical body 23 (that is, the area in contact with the bottom surface of the barrel tank 1G0) is small, the cylindrical body 23 is processed by removing the media.
3, even if a small number of media particles remain on the bottom of the barrel tank 10, there is almost no possibility that the media 24 will be caught between the lower peripheral edge of the cylindrical body 23 and the bottom of the barrel tank 10. Somehow, the cylindrical body 23 can be easily installed in the normal state, and since the cylindrical body 23 is fixed to the column 21 at its upper end with the fixing bolt 27, the fixing bolt 27 is attached to the upper part. Therefore, it is easy to install and remove, and the identification bolt 27 will not rust due to contact with the media 24, etc., and foreign matter will not adhere or accumulate on the fixing bolt 27. In this barrel processing machine, the cylindrical body 23 can be easily replaced.

In the above embodiment, the cylindrical body 23 is closed at the top, but the cylindrical body in the present invention is not limited to that shown in the above embodiment, and can be fixed to the support 21 at the top end. For example, it may be a simple cylindrical shape with both upper and lower ends open, with a crossbar provided at the upper end, and fixed to a support via the crossbar. Also, the structure for stopping the rotation of the cylindrical body with respect to the barrel tank is the protrusion 22 shown in the above embodiment.
However, the present invention is not limited to the notch 26, and for example, a part of the lower end of the cylindrical body may be directly engaged with the bottom surface of the barrel tank 10.

As is clear from the above description, according to the vertical barrel processing machine of the present invention, the cylindrical body for expelling media from the center of the barrel tank has an open lower end that is in close contact with the bottom of the barrel tank. Therefore, when replacing the cylindrical body, there is almost no risk of media being caught between the two, and therefore the cylindrical body can be easily installed in its normal state, and 1. This eliminates the troublesome effort of wiping media cleanly from the bottom of the barrel tank. Further, in this invention, a support is erected at the center of rotation of the barrel tank, the cylindrical body is placed over the support, and the cylindrical body is detachably attached to the upper end of the support at its upper end. Therefore, it can be fixed with a single bolt, and when a bolt is used as a rigid fixture, it is easy to install and remove because the bolt is located above, and the bolt does not hold media, etc. This prevents the bolts from getting covered and rusting, or from foreign matter adhering to the bolts. Therefore, in general, according to this invention,
The cylindrical body can be easily replaced according to the size of the color work to be processed.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of a conventional barrel tank in a vertical barrel processing machine, Fig. 2 is a sectional view showing another conventional barrel tank, and Fig. 3 is a sectional view showing an example of a conventional barrel tank. (A cross-sectional view showing a barrel tank; FIG. 4 is a cross-sectional view showing an embodiment of the present invention; FIG.
The figure is a cross-sectional view showing the cylindrical body, and Figure 6 is M-M in Figure 5.
A sectional view taken along the line, FIG. 7 is a sectional view showing a small diameter cylindrical body. DESCRIPTION OF SYMBOLS 10... Barrel tank, 21... Support column, 23... Cylindrical body, 24... Media, 27... Fixing bolt, 34
...Work, 35...Spindle unit. Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] A barrel tank that accommodates media and is driven to rotate around a vertical axis, a support that is erected at the center of rotation of the barrel tank, and a support that is placed over the support to expel the media from the center of the barrel tank. The cylindrical body has a lower end portion open and a lower circular edge portion thereof is in close contact with the bottom surface of the barrel tank, and the cylindrical body has an upper end portion that can be freely attached to and detached from the upper end portion of the column. 1. A vertical rotary barrel processing machine, which is attached to the barrel tank and is configured to insert and hold a workpiece in a medium between an inner circumferential surface of the barrel tank and an outer circumferential surface of the cylindrical body.