JP3393193B2 - Vibration barrel polishing machine and vibration barrel polishing method using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating barrel polisher in which a mass (generally a general term for a work, a grinding stone, water, and a compound) is put into a barrel tank of a vibrating barrel polisher to polish a work. is there.

[0002]

2. Description of the Related Art Vibrating barrel polishing machines include those equipped with barrel tanks of various shapes. The barrel tanks are roughly classified into a donut-shaped annular vibration barrel polishing machine and a box-shaped box-shaped vibration barrel polishing machine. There is.

Among these polishing machines, the annular vibrating barrel polishing machine has springs evenly arranged on a loading platform, supports a barrel tank on the springs, and provides a vibration generator (usually a vertical vibration motor is installed inside the barrel tank). Fixed to the shaft and provided with eccentric weights above and below the shaft, or a vertical shaft provided with a pulley driven by a separately provided drive means and having eccentric weights above and below the shaft) And the center of gravity on the spring (the center of gravity on the spring) are aligned with each other, and the structure is such that good vibration is generated in the barrel tank.

This type of polishing machine has a larger tank capacity than other polishing machines and can fill 100% of the mass with respect to the tank capacity, so that it is possible to polish small workpieces to large workpieces. Good at mass production.

In recent years, along with the trend of labor saving and labor saving, automation is naturally performed even in the vibrating barrel polishing machine, and it has become commonplace to attach automation equipment in addition to the above mechanical construction. Speaking of an annular vibrating barrel grinder as an example, usually, the side wall of the annular tank is provided with a stone blasting opening, and in order to open and close this stone unloading opening, it is natural to open and close by a power unit such as a cylinder. It looks like.

[0006]

However, when the equipment such as the cylinder is attached, the place where the cylinder is attached becomes heavy, and the barrel tank is supported on the spring. Therefore, the axis of the vibration generator and the center of gravity on the spring are not aligned with each other. There was a case in which the mass was concentrated and piled up in the upstream part of the barrel tank around the heavy object mounting part due to displacement. As a result, the mountainous portion overflows from the barrel tank, and the flow deteriorates, so that other parts also chain and deteriorate, and the other parts become bulky, the polishing power decreases and 100% mass can be filled. In some cases, the original merit of the vibrating barrel could not be brought out.

Further, as one of the above annular vibrating barrel polishing machines, there is an annular vibrating barrel polishing machine with a sorting net for the purpose of sorting the mass on the annular tank. In this polishing machine, in order to push the mass onto the sorting net installed above the polishing tank to sort,
Place an ascending slope flap between the bottom of the tank and the end of the sorting net,
The fluidity of the trout pushes the trout up onto the net.

This polishing machine also has a similar problem because it is provided with a frame with a sorting net and a cylinder for rotating the flap, and there is a case where the polishing force is reduced because a smooth flow cannot be obtained. It was Furthermore, during sorting, the upward slope of the flaps resisted and the mass became stagnant with more mountains in front of it, and the pushing force of the mass was insufficient, and the sorting time was extended.

[0009]

The present invention solves these problems and eliminates the peaks of the trout to achieve 100%.
The filling is made possible and a smooth flow is generated to improve the polishing power.

That is, according to the present invention, in a barrel tank of an annular vibrating barrel polishing machine having a mass discharge portion supported on a spring, a weight balance between the discharge portion and a side wall of the barrel tank facing the discharge portion is provided. This is a vibrating barrel grinder equipped with a weight for removing the weight, and with such a configuration, the center of gravity on the spring returns to the axial center position of the vibration generator, which is the original position of the mass of the mass. Smooth flow is achieved by eliminating the portion, and 100% filling of the mass is possible.

Another aspect of the present invention is a method of barrel-polishing using a barrel tank of an annular vibrating barrel polishing machine having a mass discharge portion supported on a spring, wherein a side wall of the barrel tank facing the discharge portion is provided. A vibrating barrel polishing method is characterized in that a mass for balancing the weight with the discharging part is attached to uniformly disperse the mass in the barrel tank for polishing and discharging the mass. Therefore, the mass does not have piles and a smooth flow occurs, and even with a polishing machine that has a sorting unit, stagnation in front of the flap is reduced and the mass pushing force on the sorting net is improved, improving the polishing power and polishing. It contributes to shortening the sorting time later.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a vibrating barrel polishing machine 1 according to the first embodiment of the present invention, and FIG. 2 is a plan view. In the figure, reference numeral 2 is a gantry, and a plurality of springs 3 are evenly arranged in an annular shape on the upper surface to support the barrel tank 4. A vibration motor 6 is fixed to the hollow cylindrical portion 4a of the barrel tank 4 via a flange 5. The vibration motor 6 is fixed vertically, and eccentric weights 7 and 7a are provided on the upper and lower shafts thereof at an appropriate angle so that the barrel tank 4 is vibrated when the vibration motor 6 is operated. Has become.

The barrel tank 4 is in the shape of a donut whose upper part is open, and the inner wall is lined with neoprene rubber or urethane. Reference numeral 8 is a cylinder, one end of which is attached to the side wall of the barrel tank 4 and the other end of which is connected to the discharge lid 9, and when the cylinder is operated by supplying fluid pressure to one end of the cylinder, the bracket attached to the barrel tank 4 by the discharge lid 9 The pin 10 is rotated around the pin 11 to open and close the discharge port. Both ends of the pin 11 are connected to the discharge lid 9 and are rotatably fitted in the bracket 10. Reference numeral 12 is a discharge port of the barrel tank, which is closed by the discharge lid 9. A chute 13 is provided below the discharge port 12 so that the mass can be guided and discharged.

The barrel tank 4 facing the cylinder 8
A weight 14 is welded and fixed to the side wall of the. in this case,
The weight 14 includes a cylinder 8, a discharge lid 9, a bracket 10,
A vibration motor 6 in which the center of gravity on the spring of the barrel tank 4 is a vibration generator in balance with the discharge portion 18 of the chute 13 and the like.
It is designed to match the axis of. Weight 1 in this example
Although 4 is welded and fixed to the barrel tank 4, it may be fixed by bolting, and if the weight of the discharge portion 18 fluctuates, a plurality of weights are prepared and attached so that the weight can be changed accordingly. The weight may be balanced by changing the number of sheets. Besides, it is also possible to attach by a magnet.

FIG. 3 is a plan view of a vibrating barrel polishing machine with a sorting net according to a second embodiment of the present invention. In this case, a selection frame 15 is provided above the barrel tank 4, and the selection frame 1
A sorting net 16 is installed between the five. Further, the bottom of the barrel tank is connected in a stepped manner with the mountain-shaped weir 19 as a boundary to form an annular shape. Further, a plate-like ascending slope flap 17 which rotates up and down with the mountain weir side as a rotation axis is attached between the sorting net 16 and the mountain weir 19. Also in this form, the plate-like weight 1 is provided on the side wall of the barrel tank 4 facing the sorting net 16.
4 is welded and fixed, and the weight is balanced with the discharge portion 18a of the selection frame 15, the selection net 16, the flap 17, etc. so that the center of gravity on the spring of the barrel tank 4 coincides with the axis of the vibration motor 6 which is a vibration generator. Has become.

The operation of the present invention will be described with reference to FIGS. The barrel tank 4 is preliminarily charged with an appropriate amount of each of the work, the polishing stone, the water, and the compound (hereinafter, referred to as a trout if necessary). When the mass setting is completed, the vibration motor 6 is operated to start the vibration barrel polishing machine 1.
The mass rotates in the barrel tank 4 as indicated by arrow a and revolves around the orbit as indicated by arrow b. In the conventional case, the mass becomes mountainous upstream of the mounting portion of the cylinder 8 and the revolution speed is stagnant.
There was a case where the trout contained only about% depth,
Since the weight 14 is fixed, this is not the case and the mass is evenly distributed and flows smoothly.

When the polishing is completed, a fluid pressure is supplied to one end of the cylinder 8 to operate it, and the discharge lid 9 is opened.
Then, the mass is discharged to the outside of the tank from the discharge port 12 through the chute 13 by vibrating action. After discharging, the workpiece and the grinding stone are sorted by a known sorting machine. Even in this case, the mass revolving force is improved, so that the mass can be discharged faster than before.

Next, the case of the vibrating barrel polishing machine with a screening net shown in FIG. 3 will be described. Similarly, when the mass is thrown in and started, the mass during polishing passes over the flap 17 retracted downward, passes under the sorting net 16, and revolves in the barrel tank 4 by orbiting. In this case, the mass is evenly distributed and smoothly flows.

When the polishing is completed after a certain period of time, the flap 17 is rotated and hung on the sorting net 16. Then, the mass rises up the flap 17 and reaches the sorting net 16, where it is sorted into a grinding stone and a workpiece. In this case, in the conventional case, since the mass becomes mountainous in front of the flap and the rotation speed is stagnant, the flap that is difficult to climb is harder to climb, but the dead weight is attached to the flap. The revolving force of the mass is reduced and the mass pushing force to the flap 17 is improved as compared with the conventional case.

Although the above embodiment has been described with respect to the annular vibrating barrel polishing machine, it is needless to say that the present invention is also effective for the continuously vibrating annular vibrating barrel polishing machine (for example, disclosed in Japanese Patent Publication No. 46-29432). In addition, a long-distance annular vibrating barrel polishing machine (for example, disclosed in JP-A-55-137880) in which an annular tank and a box-shaped tank are mixed, and a multi-stage multi-tank vibrating barrel polishing machine (for example, disclosed in JP-A-9-123056). Is also useful in.

[0021]

[Effect] According to the vibrating barrel polishing machine of the present invention and the vibrating barrel polishing method using the same, since the weight for balancing the weight is attached to the side wall of the barrel tank, the center of gravity on the spring of the barrel tank vibrates. Returning to the axial center of the machine, the mass does not become piled up and remains in a part of the tank, the flow is good and the polishing power is improved, and the mass is evenly distributed, so 100% filling is possible. is there.

Further, when the mass is discharged and sorted by a vibrating barrel grinder with a sorting net or the like, the mass is less likely to stagnate in front of the flap, so that the pushing force of the mass onto the flap is improved,
It not only improves polishing efficiency, but also leads to shortening the lead time in the discharging process after polishing, which is more effective than conventional polishing machines of this type.

[Brief description of drawings]

FIG. 1 is a front view of a vibrating barrel polishing machine of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view of a vibrating barrel polishing machine according to a second embodiment.

FIG. 4 is a partially cutaway sectional view of a portion AA in FIG.

[Explanation of symbols]

1 = Vibration barrel polishing machine 2 = loading platform 3 = spring 4 = barrel tank 4a = hollow cylindrical part 5 = flange 6 = Vibration motor 7, 7a = Eccentric weight 8 = cylinder 9 = Discharge lid 10 = bracket 11 = pin 12 = outlet 13 = shoot 14 = weight 15 = selection frame 16 = Sorting network 17 = flap 18, 18a = discharge part 19 = mountain weir

Claims (2)

(57) [Claims] 1. A mass discharge part supported on a spring
In a barrel tank of an annular vibrating barrel polisher, a weight is attached to a side wall of the barrel tank facing the discharging section to attach a weight for weight balance with the discharging section. 2. A mass discharge part supported on a spring
In the method of barrel polishing using a barrel tank of an annular vibrating barrel polishing machine, by attaching a weight for balancing the weight of the discharging section to the side wall of the barrel tank facing the discharging section, A vibrating barrel polishing method characterized in that a mass is evenly dispersed to polish and discharge the mass.