JPH0692069B2 - Vibration barrel processing machine with automatic ejection mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vibrating barrel processing machine capable of automatically discharging a workpiece, an abrasive and the like (hereinafter, a mixture of these is collectively called a mass) in a vibrating tank. And belongs to the field of manufacture, sale and use of vibrating barrel processing machines.

(Prior Art) A conventional vibrating barrel processing machine with a sorting device is disclosed in
No. 29878, a mountain-shaped fixed weir is provided below the mass transfer side edge of the sorting net, and a flap that opens and closes is provided between the top of the mountain-shaped fixed weir and the front edge of the sorting net. , One in which a vibration motor is driven in one direction to enable polishing and selection, or as disclosed in Japanese Patent Publication No. 46-29432, the mass flow direction is switched between forward and reverse and is arranged in the barrel. It is known that the automatic rotating weir is automatically infiltrated or floated in the fluidized bed of the mass to automate polishing and selection.

(Problems to be solved by the invention) The conventional vibrating barrel processing machine with a sorting device is focused on the polishing work and the sorting work of the work, and the exchanging work of the polishing material charged in the vibrating tank is performed. Was not considered so much. Therefore, in order to replace the abrasive, only the method of removing the lid of the discharge port provided on the side surface of the vibrating tank and manually discharging the abrasive has been performed. Was needed. Further, with the increasing demand for fully automated or unmanned work, such manual discharge of the abrasive has been a problem that must be solved immediately.

(Means for Solving the Problems) The present invention has a discharge port provided on the side surface of the mountain-shaped fixed weir provided on the bottom of the vibrating tank on the side close to the sorting net, and the vertical rotary shaft of the vertical motor can be operated in either forward or reverse directions. The above-mentioned conventional problems have been solved by mounting a pair of eccentric weights that are automatically set to a predetermined advance angle in the rotation direction. Further, in the above description, an automatic opening / closing lid that closes the discharge port is attached to the discharge port.

(Operation of the Invention) Since the present invention is configured as described above, the work of discharging the abrasive can be performed extremely easily.

That is, if the lid of the outlet is opened and the motor shaft is rotated in the direction opposite to the polishing work, the eccentric weight is set to a predetermined advance angle, and the abrasive material automatically moves toward the outlet. It will be discharged and discharged promptly.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 8.

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is an enlarged plan view of the vicinity of the automatic opening / closing lid, and FIG. 4 is a partial sectional enlarged view of the vicinity of the automatic opening / closing lid. Is.

In FIG. 1, an annular vibrating tank 1 constitutes a donut-shaped processing space between the vibrating tank 1 and a central column 2, and a vertical motor 12 having a pair of eccentric weights 11 and 11a at the lower center of the vibrating tank 1. These devices, together with the flange 14, are suspended on a base 4 by a number of springs 3. By the rotation of the vertical motor 12, the mass is given a swiveling motion in a vertical plane and a translational motion as shown by an arrow 5 to grind, mix, agitate, dry, and chemically process the workpiece in the mass. I do. After processing, the flap 6 is rotated around the flap shaft 7 so that the tip of the flap 6 reaches the upper end of the chevron-shaped fixed weir 13 provided at the bottom of the vibrating tank 1, and the mass shows the flap surface as shown by arrow 8. And is sent onto the sorting net 9, and the medium drops from the sieve and is returned to the vibrating tank 1 again.
The processed workpiece is taken out of the system in the direction of arrow 10.

A liquid pressure cylinder 15 is attached to a side surface of the vibrating tank 1, and a tip of a piston rod 16 thereof is in contact with a tip of a flap arm 26 connected to the flap shaft 7, so that the piston rod 16 projects. Then, the flap 6 rises, and when it retracts, the flap 6 descends. A fluid pressure cylinder 17 is also mounted on the lower flange 14 of the vibrating tank 1, and its piston rod
A lid 19 for ejecting media is attached to the tip of 18. Details of the automatic opening / closing mechanism of the lid 19 are shown in FIGS.
It is shown in the figure. The fluid pressure cylinder 17 is swingably supported, and a tip end of a piston rod 18 is rotatably attached to a projecting piece 20 below a lid 19. The lid 19
The upper protruding piece 21 is rotatably mounted on the protruding piece 22 mounted on the bottom of the vibrating tank 1 with the pin 23 as a fulcrum. Therefore, when the piston rod 18 of the fluid pressure cylinder 17 is retracted, the lid 19 pivots to the position of the chain double-dashed line in FIG. 4 as shown by the arrow 27, and the discharge port 24 is opened. Reference numeral 25 is a chute for the ejection medium, which is provided below the ejection port 24.

Next, a method for automatically setting the advancing angle of the weights attached above and below the rotary shaft of the vertical motor will be described. Normal,
In order to obtain a smooth mass flow, the lower weight precedes the upper weight within the range of 0 to 180 degrees (in the future, when the lower weight precedes the lower weight, The leading angle must be abbreviated as "upper edge", and the leading angle is
Around 90 degrees is considered optimal. Therefore, if the motor is driven at 90 degrees downward (not necessarily limited to 90 degrees), a spiral mass flow is generated in the vibrating tank, and the workpiece is machined. However, if the motor is reversed in this state (90 degrees at the bottom), it will reach 90 degrees at the top, and the mass will stagnate in its place and a smooth spiral flow will not occur. Therefore, it is necessary to reverse the motor and at the same time, to exchange the positional relationship between the upper weight and the lower weight so that the lower weight becomes 90 degrees. The applicant has developed various conversion methods. These methods are roughly classified into a mechanical conversion method and an electrical conversion method. For the mechanical conversion method, Japanese Patent Publication No.
There are methods such as -29432, Japanese Patent Publication No. 49-30188, and Japanese Utility Model Publication No. 55-10044. The electrical conversion method may be the method disclosed in Japanese Patent Application Laid-Open No. 58-103890, which is also assigned by the same applicant as this invention.
Here, in order to facilitate understanding, the method of Japanese Utility Model Publication No. 55-10044 will be described with reference to FIGS. FIG. 5 is a plan view showing details of the variable unbalance weight, and FIG.
5 and FIG. 7 are sectional views taken along the line AA ′ in FIG. 5, and FIG. 8 is a view showing the relative phase relationship between the upper and lower eccentric weights.
Among the eccentric weights 11 and 11a, the lower eccentric weight 11a is used as a hollow container having a flat fan shape and an inverted trapezoidal cross section, and a granular material having a high specific gravity such as a steel ball (a high specific gravity liquid such as mercury is also contained in the container. (Good), and a predetermined leading angle θ is maintained with respect to the eccentric weight 11 that is located above in the direction of rotation of the rotary shaft 30 of the vertical motor 12. 5 to 8, while the vertical motor 12 is stopped, the steel ball in the variable eccentric weight 11a is at the position 31 in FIG. 6 and the motor 12 is moved in the direction of the arrow 32 in FIG. When is rotated, the steel ball is moved by centrifugal force to the position 33 in FIGS.
As shown in the drawing, the leading eccentric weight 11 has a leading angle θ. Conversely, when the motor 12 is rotated in the direction of the arrow 32a, it moves to the position of the steel ball 33a and has a leading angle θ'with respect to the upper eccentric weight 11 in the opposite direction. . In other words, the lower weight always has the leading angle with respect to the rotation direction of the rotary shaft 30 of the motor.

The operation of the present invention will be described based on the structure of the above embodiment.

A vertical motor is loaded into the vibrating tank 1 such as the work and polishing material.
When 12 is driven to rotate the rotary shaft 30 in the direction of arrow 32 in FIGS. 1 and 5, the mass spirally flows in the direction of arrow 5 in FIG. 1 to perform the polishing operation. After finishing polishing, flap 6
When is moved down into the mass, the mass is sent and sorted on the sorting net 9 as indicated by the arrow 8 in FIG. 1, and only the workpiece is discharged.

Next, the work of exchanging the abrasive will be described. Vertical motor
When 12 is rotated in the opposite direction to the polishing operation described above, ie, in the direction of arrow 32a in FIGS. 1 and 5, the mass spirals in the direction of arrow 5a in FIG. At the same time, when pressure fluid is introduced to the piston rod side of the fluid pressure cylinder 17,
The piston rod 18 is retracted, the lid 19 is swung as shown by arrow 27 in FIG. 4, and the discharge port 24 is opened. As a result, the mass is discharged from the discharge port 24 onto the chute 25. When all the abrasive has been discharged, pressure fluid is introduced into the piston side of the fluid pressure cylinder 17, the piston rod 18 is moved forward, and the lid 19 is closed. Next, when another abrasive different from the above is charged into the vibrating tank 1 by a charging device or the like, the operation of exchanging the abrasive is completed.

(Effects of the Invention) The present invention attaches an automatic opening / closing lid to the discharge port on the side close to the sorting net of the mountain fixed weir provided at the bottom of the vibrating tank, and attaches to the rotary shaft of the vertical motor in either forward or reverse rotation directions. Since a pair of eccentric weights that are automatically set to a predetermined advance angle are attached, if the automatic opening / closing lid is opened and the vertical motor is driven, the abrasive in the vibrating tank will be quickly discharged from the outlet. Is discharged. Therefore, in addition to saving labor and labor,
It can be installed in an unmanned barrel factory.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is an enlarged plan view of the vicinity of the automatic opening / closing lid, and FIG. 4 is a partial sectional enlarged view of the vicinity of the automatic opening / closing lid. , FIG. 5 is a plan view showing details of the variable unbalance weight, FIG.
5 and FIG. 7 are sectional views taken along the line AA ′ in FIG. 5, and FIG. 8 is a view showing the relative phase relationship between the upper and lower eccentric weights. 1 ... Vibration tank, 4 ... Base 6 ... Flap, 9 ... Sorting net 11, 11a ... Eccentric weight 12 ... Vertical motor, 13 ... Mountain fixed weir 15 ... Fluid pressure cylinder 16 ... … Piston rod 17 …… Fluid pressure cylinder 18 …… Piston rod 19 …… Lid, 24 …… Discharge port 25 …… Shoot, 30 …… Rotating shaft 31 …… Steel ball position when the vertical motor is stationary 33, 33a ... Position of steel ball during rotation of vertical motor

Claims (2)

[Claims] 1. A stepped or stepless annular vibrating tank with a sorting device having a mountain-shaped fixed weir and a rotating weir continuously connected between the bottom of the vibrating tank and a sorting net is suspended by a spring, and the center of the vibrating tank is also provided. In a vibrating barrel processing machine in which a vertical motor having an eccentric weight is installed at a lower portion, a discharge port and a lid for closing the discharge port are provided on a side surface of the mountain-shaped fixed weir that is close to a sorting net, and the vertical motor is also provided. A vibrating barrel processing machine with an automatic ejecting mechanism, characterized in that a pair of weights that are automatically set to a predetermined advance angle in both forward and reverse rotation directions are attached to the vertical rotation axis of the 2. A vibrating barrel processing machine with an automatic ejection mechanism according to claim 1, wherein the lid closing the ejection port is an automatic opening / closing lid.