JPH0249867B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a centrosymmetric type barrel constructed by connecting one or more pairs of planar semicircular barrels facing each other at both ends with one or more planar linear barrels. An annular vibrating barrel is suspended by a spring, and a vibration oscillator is installed in the center of the barrel to cause the mass inside the barrel to flow in a spiral, and a workpiece is inserted into the spirally flowing abrasive material and polished. This article relates to a long-distance annular vibrating barrel processing machine for line processing.

(Prior art) Conventionally, the extension of the line of box-type vibrating barrels has been proposed in German patents DBP1047993 and
As in the invention described in DBP10360292 and US Pat. No. 3,071,900, separate devices are provided for mass drive, mass separation, and mass circulation, making the entire device large and therefore expensive. It wasn't practical. Furthermore, it is stated in Japanese Patent Publication No. 50-16558 and Japanese Patent Application Laid-open No. 141995-1987 that the line of the circle-type vibrating barrel was extended at most twice as long as the conventional barrel. This is clear from the invention described above.

(Problems to be solved by the invention) The invention described in Japanese Patent Publication No. 50-16558 is as follows:
The oscillator is fixed at the center of the vibrating body, but the barrel of the main body has an asymmetrical structure, such as having a right or acute bending angle, or having a sorting device that protrudes abnormally from the barrel body. Due to these reasons, it was impossible to use it as a line processing machine, and it was not always possible to perform normal processing.

In addition, the invention described in JP-A No. 53-141995 is
The specification states that the barrel "makes it possible to incorporate not only a single vibration generator but also multiple vibration generators in the space extending in the longitudinal direction," and from FIG. All the diagrams up to Figure 9 and their explanatory articles clearly state that the device uses multiple vibration generators without considering the device that enables unbalanced weights to be synchronously driven to rotate in the same direction with the same torque. Therefore, it appears that the inventor had fallen into a very serious error.

That is, the phenomenon of out-of-sync vibration occurring in the mass in the vibrating box caused by a plurality of oscillators causes the mass to wander in undefined directions, or causes the mass to overflow from the barrel. For this purpose, the barrel is bent outward and tilted as shown in Figure 2 of the above-mentioned Japanese Patent Application Laid-Open No. 53-141995.
By creating an unusually complicated structure that was not seen before, the production cost was increased needlessly, and on the contrary, it hindered the smooth flow of mass.
This drastically reduces the machining effect of the workpiece. That is, there was a problem in that it could not be easily turned into an efficient practical machine.

(Means for Solving the Problems) However, according to the present invention, all of the above-mentioned defects have been improved through numerous experiments, and the functions have been added several times to several times as many times as those of the conventional technology, making it extremely rational. In addition, a long-distance annular vibrating barrel processing machine for line processing with a simple structure is obtained.

That is, the present invention provides a vibrating barrel processing machine in which an annular barrel is formed by connecting the chord sides of planar semicircular barrels facing each other at a predetermined interval with a planar linear barrel, and supporting the annular barrel on the machine stand with a large number of suspension springs. In, the length L from one side outer wall to the other side outer wall of the annular barrel is 3 of the outer wall width M of the opposing linear barrel.
The magnification is between 30 times and 30 times, and is configured in a centrally symmetrical manner, with most of the inner periphery of the mass flow section inside the barrel having a vertical cross section that is approximately circular, and vibrations are applied to the center of the annular barrel at the top and bottom ends of the vertical rotation axis. A single vibration oscillator with an unbalanced weight given a force and a lead angle is installed, and one or more chevron-shaped fixed weirs for mass propulsion control are installed at the bottom of the barrel, and above one of them, A rotary flap is installed in which a pin is attached to the middle part of a rectangular flap, and when the rotary flap is lowered, its lower end is placed in contact with the angle-shaped fixed weir, and its upper end is connected to a mass separation device, This is a long-distance annular vibrating barrel processing machine for line processing, characterized in that a workpiece loading section can be installed on the forward side of the mass with respect to the rotating flap of the annular barrel.

In addition, the annular barrel has a semicircular vertical cross section on the arcuate bottom surface, the inner circumferential wall is a vertically rising wall, the outer circumferential wall is a vertically rising wall through an inner curved part, the inner and outer circumferential walls are vertically rising walls, or both the inner and outer circumferences are vertically rising walls. It is characterized by having a vertically rising wall through the inner curved portion, or having a barrel with a circular vertical cross section.

Regarding the size of the barrel mentioned above, the length L of the annular barrel is optimally 5 to 15 times the width M. If the ratio is less than 3 times, the advantages of line processing cannot be fully demonstrated, and if it is more than 30 times, the application of fluid energy by a single oscillator will increase the capacity of the oscillator, improve the uniformity of vibration transmission, improve the material of the barrel, There is a risk of problems with the shape, characteristics of the support spring, etc.

(Function) That is, according to the present invention, since a long annular vibrating barrel bath having a workpiece loading section is vibrated by a single oscillator, the same polishing action as that of the conventional circular vibrating barrel can be achieved over a long distance. It has the ability to perform while moving, which makes it possible to perform line processing over long periods of time.

(Example) Next, embodiments of this invention will be described.

FIG. 1 shows an annular barrel 3 according to the present invention suspended vibratingly by arranging a large number of springs 2 on a machine base 1 at approximately equal intervals along a longitudinal line 4 in the center of the bottom of the barrel. L is 3 to 30 times the diameter of the planar semicircular barrels 3a, 3a' facing each other at both ends (i.e., the width of the planar straight barrel), and optimally 5 times to 30 times.
The length is 15 times longer, and a single vibration oscillator 5 is fixed at the center of the barrel to the motor receiving flange 9 within the central spatial width N of the barrel. Balanced weight 7,
6 is fixed so that it can be rotated and vibrated. 1
For example, if the unbalanced weight is rotated clockwise as shown by the arrow in FIG.
Move like 1, 21a, 21b, 21c,
Inside the barrel, a spiral flow motion is repeated from the outer circumferential wall of the barrel to the inner circumferential wall of the barrel as shown by the arrow in FIG. Processed in The machining cycle is 1 because the length L of this elongated annular barrel is optimally 5 to 15 times the diameter M of the planar semicircular barrel (width of the planar straight barrel) as described above. For example, if M:L is 1:3~5, adjust the advancing angle of the upper and lower weights to make one cycle of each workpiece 3 minutes to 10 minutes, and M:L is 1:5~1. 15
In the case of 10 minutes to 30 minutes, M:L is 1:15~
30, a large number of workpieces can be machined by continuously adjusting the drive in a takt of several seconds in each cycle of 30 to 60 minutes. According to such a generation time, line machining in Oita is possible, but the chevron fixed weir 10 and rotating flap in FIG. Start by raising the square above screen 13 at all times,
The workpiece is separated from the abrasive material, and the workpiece is discharged from the discharge port 14.
The workpiece can be processed in a continuous line by being carried out of the barrel as shown by the arrow, and the abrasive material is passed through the screen 13 and circulated within the barrel. In addition, since the fixed weir 10 blocks the flow of mass and accumulates the mass in the barrels 3b' and 3a', the amount of mass in the barrels 3a and 3b located far from the fixed weir naturally tends to decrease. Become. Therefore, in order to always keep the mass in the barrel full and perform line machining with the most effective mass amount, at the bottom of the barrel opposite the fixed weir 10, there is a The fixed weir with low height is 10a and 1 in Figure 2.
If you install one or many in the order of 0b and 10c,
Since the mass always moves by an almost equal amount over the entire barrel area, there is no risk of reducing the amount of processing.

FIG. 3 is a sectional view taken along line A--A in FIG. 2. Further, a, b, and c in FIG. 4 respectively show cross-sectional shapes of barrels that can be used in the processing machine according to the present invention, similar to the type 3b barrel in FIG. 3.

Next, in the cross section of the barrels a and b in Fig. 4, the upper surface is open, whereas the barrel c in Fig. 4 is a fully enclosed type barrel, so the starting end of the barrel (see Fig. 2) is a fully enclosed type barrel. The upper surface of the barrel (position 3a in Figure 2) is opened to serve as a mass charging port, and a part of the upper surface of the barrel at the terminal end (position 3b' in Figure 2) connected to this starting end is opened to allow separation work. Ancillary equipment such as a fixed chevron weir and rotating flaps and screens will be installed.

The cross-sectional shapes of the barrels 3b in FIG. 3 and a, b, and c in FIG. 4 are most suitable for the annular barrel according to the present invention, as described above.
Any unusual shape and structure of the barrel other than these, particularly the conventional barrel shape and structure detailed in the references of the aforementioned patent application publication and patent application publication, is not applicable to the mass flow and line formation of the barrel of the present invention. I would like to point out that this is extremely inappropriate.

That is, since the shape of the barrel of the present invention is such that most of the inner periphery of the mass flow section in the barrel has a substantially circular vertical cross section, the spiral flow of the mass is performed extremely smoothly.

Next, the reason why the present invention has no out-of-sync vibration will be explained.

That is, the barrel of the present invention is suspended on the spring 2 shown in FIG. Arranged at equal intervals along line 4. Moreover, the oscillator has a single motor fixed at the center and the most central part of the center-symmetrical annular barrel with a flange 5a on a motor receiving flange 9, and a motor at both the upper and lower ends of the rotating shaft 6 of the motor. Since the unbalanced weights 7 and 8 are fixed and rotated by applying an appropriately selected excitation force and lead angle, the three-dimensional vibration waves generated by the oscillator are completely simple. Become one of a kind,
The above-mentioned non-synchronized vibration can be completely eliminated.

However, the conventional long-distance line vibrating barrel box type has one single dimensional vibration oscillator.
Apply the same excitation force in a synchronized manner to multiple barrels that excite individual box-type barrels, or to the same horizontally rotating shaft, or to multiple long-distance shafts connected by joints. There are two types of machines in which a weight that produces a large number of single-dimensional vibrations is fixed to the bottom of an elongated box-shaped barrel, and the vibrations are synchronously generated. In this way, due to the conventional thinking that long-distance barrels require the synchronization of multiple processing machines, there is a misunderstanding that long-distance barrels require multiple oscillators even for annular vibrating barrels. This is where the blind spot of JP-A-53-141995 was found.

In other words, three-dimensional vibrations will always generate unsynchronized vibrations unless there is a completely synchronized oscillator, and unless there is a unique source, a long-distance box-type barrel in one direction and a long-distance annular center It should be understood that with a symmetrical barrel the vibration effects are quite different.

Next, FIG. 5 shows the upstream tank bottom up to the vicinity of the upstream starting end of the square in front of the fixed chevron weir 10 of the annular barrel, and the sorting screen 13 from above the fixed chevron weir 10 and the rotary flap 11 lowered onto the fixed chevron weir. Covering the upper space up to the front end of the flow control lid 26,
A guide plate 2 is provided inside the inflow end of the mass of the flow adjustment lid 26 and near the front edge of the chevron-shaped fixed weir 10, and hangs down from above in the radial direction of the inner peripheral side of the barrel tank.
5, 25a are provided to form a mass accumulation push-up area. In this case, depending on the shape of the mass, only one guide plate may be used. In the annular barrel of the present invention, uneven distribution of the mass may change the state of each vibrating part, so uneven distribution of the mass must be avoided as much as possible. Therefore, in the fixed weir installation section, a flow regulating lid is provided to prevent the mass from rising.

Next, in the present invention, the vibration motor 5 can be used as an oscillator, and the oscillator can also be driven by a motor. It is important to adjust the imbalance caused by uneven distribution of masses.

Therefore, as in the case of a vibration motor, the oscillator must be a single and unique three-dimensional vibration source as far as the present invention is concerned, and therefore the oscillator must also be single. Therefore, the electric motor that drives this is the 9th motor.
30, 30a in FIG. 10, the oscillator 27 is located in the central space between the barrels, and the oscillator is placed parallel to a pair of parallel barrels at symmetrical positions equally spaced left and right, or in the center between the barrels. The motors 29, 29a are connected to the pulley 28 of the shaft 35 of the oscillator by belts 37, 37a and driven to rotate the shaft. The oscillator is fixed with a receiver 32 to a bottom plate 31 that covers the central space between the barrels,
Weights 7 and 8 are fixed to both the upper and lower ends of the shaft and are rotated and vibrated. Reference numerals 36 and 36 denote roller bearings for the shaft, and if the shaft becomes thick, there is a risk that the bearings will seize, so it is necessary to use a spray lubrication method instead.

However, since the barrel of the present invention is large-sized, the number of motors 30, 30a does not necessarily have to be two at all times, and even if only one motor is used, there is no problem in implementation as long as the degree of imbalance is small. Also, the oscillator is the first
As shown in Figure 1, a motor 30 is fixed on a cover plate 38 in the central space between the barrels by a joint 34.
The shaft 35 of the oscillator is connected to drive the shaft 35 of the oscillator, or as shown in FIG. It is possible to prevent the negative effects of imbalance due to

(Effects of the Invention) As described above, there are many effective application examples of this invention, which are extremely rational, long-distance annular barrels,
Furthermore, the present invention provides a long-distance annular vibrating barrel processing machine for line processing that is simple and waste-free. This has the effect of allowing highly efficient line processing.
In addition, depending on the characteristics of the cross-sectional shape of the barrel, it is possible to polish the workpiece by mixing the workpiece with the abrasive material, or by suspending the workpiece into the abrasive material. The mode can be selected.

According to this invention, since the total length L of the barrel is 3 to 30 times the total width M, line machining can be performed over a long distance, and since it is annular, the total length is about 1/2 compared to the box type. Similar processing can be done. Furthermore, although the workpiece is machined on a line,
Since the abrasive material can be made to flow as it is by the same vibrational energy, there is no need for a return device such as a box type. Furthermore, since only one oscillator is used, the mass flows smoothly and orderly, allowing uniform machining of the workpiece.

Next, since a fixed chevron-shaped weir for mass propulsion control is provided at the bottom of the barrel, there is no backflow of the mass and there is an effect that the mass flows in the same direction in an orderly manner.

[Brief explanation of drawings]

Fig. 1 is a front view of a long-distance annular vibrating barrel processing machine for line processing according to the present invention, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a line A-A of Fig. 2.
4a, b, and c are cross-sectional views of various embodiment barrels according to the present invention, FIG. 5 is a plan view of another embodiment, and FIG. 6 is B in FIG.
- An enlarged cross-sectional view taken along line B, Figures 7 and 8 are cross-sectional views showing how the guide plate is installed, Figure 9 is a plan view showing an example of a processing machine that drives an oscillator with a motor, and Figure 10. is an enlarged sectional view taken along line C-C in Fig. 9, Fig. 11 is an enlarged sectional view showing an example of a processing machine in which a motor is installed and driven on an oscillator, and Fig. 12 is an enlarged sectional view showing an example of a processing machine in which a motor is installed and driven under an oscillator. FIG. 2 is an enlarged sectional view showing an example of a processing machine that is installed and driven. 1... Machine base, 2... Spring, 3... Barrel, 3a, 3a'... Opposing semicircular barrels, 3
b, 3b'...Parallel barrel, 5...Vibration motor,
6... Vertical rotation axis, 7... Upward unbalanced weight, 8...
...Downward unbalanced weight, 10...Mountain-shaped fixed weir, 11,
11a... Rotating flap, 13... Screen,
14... Workpiece discharge port, 15... Abrasive material discharge port.

Claims (1)

[Claims] 1. A vibrating barrel in which an annular barrel is formed by connecting the chord sides of planar semicircular barrels facing each other at a predetermined distance with a planar linear barrel, and supporting the annular barrel by a number of suspension springs on a machine stand. In the processing machine, the length L from one side outer wall to the other side outer wall of the front annular barrel is 3 to 30 times the outer wall width M of the opposing linear barrel,
It is configured in a center-symmetrical manner, and most of the inner periphery of the mass flow part in the barrel has a vertical cross section that is approximately circular, and applies an excitation force and a lead angle to the upper and lower ends of the vertical rotation axis at the center of the annular barrel. A single vibration oscillator with an unbalanced weight is installed, and one or more mountain-shaped fixed weirs for mass propulsion control are installed at the bottom of the barrel. A rotary flap is installed with a pin attached thereto, and when the rotary flap is lowered, its lower end is placed in contact with the angle-shaped fixed weir, and its upper end is connected to the mass separation device, and the rotary flap of the annular barrel On the other hand, a long-distance annular vibrating barrel processing machine for line processing is characterized by having a workpiece loading section on the forward side of the mass. 2. The annular barrel has a semi-circular vertical cross section on an arcuate bottom with an inner circumferential wall as a vertically rising wall, an outer circumferential wall as a vertically rising wall through an inner curved part, or an inner and outer circumferential wall as a vertically rising wall, or both the inner and outer circumferences as vertically rising walls. The long-distance annular vibrating barrel processing machine for line processing according to claim 1, characterized in that the vertically rising wall is formed through the inner curved portion, or the vertical cross section is a circular barrel.