JPH0321891Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a centrifugal barrel polishing device equipped with four barrel pots.

(Prior Art) Various types of centrifugal barrel polishing devices are known that are equipped with a plurality of barrel pots that perform planetary rotational motion, but as shown in Japanese Patent Publication No. 60-43271, there is a method for each barrel pot. It is common that the mass is added in sequence, which has the disadvantage that it takes a lot of time to add and discharge the mass. Furthermore, after polishing is complete, the mass discharged from the barrel pot is sorted into workpieces and media by a sorter, and the media are fed back into the barrel pot, but normally the media are once collected in a media hopper and then distributed. Therefore, a precise and expensive measuring device is required to equalize the amount charged into each barrel pot, and if the distribution error becomes large, the polishing conditions may vary depending on each pot, and vibrations due to unbalanced rotating masses may occur. There were some drawbacks such as:

(Problems to be solved by the invention) The present invention solves the above-mentioned conventional problems and reliably returns the media in the mass discharged from the four barrel pots without having to re-weigh them in the middle. This centrifugal barrel polishing device was developed with the aim of preventing distribution errors by returning the mass to the four barrel pots, and reducing loss time that does not directly contribute to polishing by simultaneously loading and discharging mass into and out of the four barrel pots. It is something.

(Means for Solving the Problems) The centrifugal barrel polishing apparatus of the present invention, which attempts to solve the above-mentioned problems, includes a turret that is supported so as to be tiltable around a horizontal axis until it assumes a downward position, and a turret that is tilted downwardly around a horizontal axis. There are four barrel pots in total, two sets of two installed on the top, two stockers installed in the lower part of the turret so that they can be tilted downward separately, and each stocker is divided into two by a partition plate in the center. It is provided at the bottom of the stocker and the center is divided into two compartments by a partition plate, and after the media discharged from each compartment of the stocker is sorted separately, the media discharged from each compartment of the other stocker is separately sorted. media sorting machine,
Two buckets are provided on the outer periphery of the machine base and return the media discharged from each compartment of the one stocker and sorted and discharged by the sorter to the two barrel pots mentioned above, and the other stocker. A chain-driven conveyor equipped with two buckets that return the media discharged from each compartment and then sorted and discharged by the sorting machine to the other set of two barrel pots, and the media discharge position of the sorting machine and the barrel pot. and a workpiece loading chute for supplying the workpieces to each of the buckets at the workpiece loading position of the chain-driven conveyor located between the mass loading position and the mass loading position of the chain-driven conveyor. .

(Embodiments) Next, the present invention will be described in detail with reference to illustrated embodiments.

1 is a machine base, 2 is a frame attached to the machine base 1 so that it can be tilted freely by a horizontal axis 3, and 4 is this frame 2
The turret 5 is rotatably mounted inside the turret 4, and the turret 5 is mounted on the turret 4 so as to be capable of planetary rotation.One set consists of two turrets A and B, and one set consists of two turrets C and D, totaling 4. It is a barrel pot. As shown in FIGS. 3 and 5, the turret 4 is rotated by a revolution motor 6 via a chain 7, and a rotor is mounted on the central axis 8 of the turret 4 so that it can rotate independently of the central axis 8. Since the attached sun gear 9 is rotated by the motor 10 through the chain 11, each barrel pot 5 rotates the planetary gear 12 provided on the underside of the turret 4 to the idler gear 13.
The planetary rotational motion is performed while meshing with the sun gear 9 via. 14 is a turret tilting motor mounted on the machine base 1, and
5 drives a reducer 16, and this reducer 16 rotates the horizontal shaft 3 via a chain 17 to tilt the turret 4 from the vertical position shown in FIG. 1 to the downward position shown in FIG. It's summery.

Reference numerals 18 and 19 are two stockers provided at the lower part of the turret 4 with a step difference. As shown in FIG. 4, each stocker 18, 19 is divided into left and right halves from the center by partition plates 21, 22, forming a total of four compartments. Each stocker 18, 19 also has a tilting motor 23, 24.
It has a structure in which it can be tilted downward individually around the shafts 25 and 26. 27 is a shaft 25 for controlling the inclination angle of each stocker 18, 19;
It is a limit switch provided around 26. These stockers 18 and 19 are under the control of a control panel (not shown), and when the turret 4 tilts diagonally downward, they assume the upward position shown by solid lines in each figure and receive the mass discharged from each barrel pot 5. ,
After that, one stocker 18 gradually tilts downward to discharge the mass to the sorter 28 below it, and after the sorting in the sorter 28 is completed, the other stocker 19 gradually tilts downward to discharge the mass to the sorter 28.
It is designed to be able to be discharged to

The sorting machine 28 is a normal vibrating sieve type driven by a vibrator 29, and separates the mass discharged from the barrel pot 5 through the stockers 18 and 19 into workpieces and media, and sends the media to the lower vibrating conveyor 30. The workpiece can be dropped and ejected from the chute 31, but its center is divided into two by a partition plate 32, and the vibrating conveyor 30 is also divided in its center by a partition plate (not shown). The media discharged from each compartment of one stocker 18 are first sorted separately in two compartments, and then the media discharged from each compartment of the other stocker 19 are similarly sorted separately.

33 and 34 are bucket carts suspended from a chain-driven conveyor provided on the outer periphery of the machine base 1. A total of four buckets are provided, two of which overlap each other in the direction perpendicular to the paper plane of FIGS. 1 and 2. In other words, the waste is discharged from each compartment of one stocker 18, and then the sorter 2
Two bucket pots 33 return the media sorted and discharged by 8 to the above-mentioned set of two barrel pots 5.
The media discharged from each compartment of the other stocker 19 and then sorted and discharged by the sorter 23 are returned to the other set of two barrel pots 5.
It is equipped with a media discharge position P of the sorting machine 28 and a chute 3 for loading the workpieces.
5 and the turret 4.
It can be sequentially moved by a chain 37 driven by a motor 36 between it and the mass input position R to the upper barrel pot 5.
One set of buckets 33 is always on standby at the media discharge position P;
When the media is ejected, the other bucket 34 is moved to the media ejection position P, and each bucket 34 is moved to the media discharge position P.
When the media is ejected at 3 and 34, bucket 3
3 and 34 are sequentially moved to the work input position Q, where the work is supplied from the work input chute 35. After receiving the work, bucket 3
3 and 34 are moved to the mass loading position R above the barrel pot 5, and the masses in the buckets 33 and 34 are thrown into the barrel pot 5.

(Function) In the apparatus configured as described above, a pre-measured mass is put into each barrel pot 5, and then the turret 4 is rotated, and centrifugal barrel polishing is performed for a predetermined period of time while the barrel pots 5 are rotated planetarily. After polishing, the barrel pot 5 is held still at the position shown in Fig. 3, and the turret 4 is moved as shown in Fig. 2.
is tilted around the horizontal axis 3 until it assumes a downward position. Along with this, the lid 20 of each barrel pot 5
When the barrel pots 5 are opened, the masses in each barrel pot 5 are accommodated without mixing into the four compartments of two stockers 18 and 19 whose centers are divided into two by partition plates 21 and 22, respectively. Thereafter, the turret 4 is immediately returned to the vertical position shown in FIG. 1 to begin the next polishing operation, while the stockers 18 and 19 begin the operation of sorting the media and workpieces in the mass in parallel.
That is, first, the stocker 18 gradually tilts, and the squares in the left and right sections are separated into two spaces by the partition plate 32 in the center.
It is gradually discharged onto the separated sorter 28. The workpieces in the mass are discharged from the chute 31, and the media are discharged into the bucket 33 waiting at the media discharge position P, as shown in FIG. After all the squares in the stocker 18 have been sorted in this way, the bucket 34 is moved to the media discharge position P, and the other stocker 19
Similarly, the mass is gradually tilted to discharge the mass onto the sorter 28, the media is discharged into the bucket 34, and the workpiece is discharged from the chute 31. In this way, the media in the squares taken out from the four barrel pots 5 A, B, C, and D are stored in the four buckets 33 and 34 without mixing with each other, so that the buckets 33 and 34 are then transferred to the workpiece. Move the buckets 33 and 34 sequentially to the loading position Q.
Input a predetermined amount of workpieces into each of the two workpieces, move them to the mass input position R, and input them into the four barrel pots 5 again.The media discharged from the barrel pot 5 of A will be returned to the barrel pot 5 of A. As a result, the amount of media in each barrel pot 5 is always kept constant. It should be noted that such sorting work and centrifugal barrel polishing work are performed in parallel, so that two batches of media are always in operation in the apparatus of the present invention. In addition, in the embodiment described above, the bucket
3 and 34 are made into mere containers, but the buckets 33 and 34 have a structure with a drawer that can be pulled out from the side, and when the buckets 33 and 34 stop at the work loading position Q, the drawers are pulled out and prepared in advance. By making it possible to replace the drawer with a drawer containing replacement media, it becomes possible to replace the media extremely easily.

(Effects of the invention) As is clear from the above explanation, the invention has four
By arranging a stocker with four compartments for each barrel pot, a special sorter, and four buckets, the media in the mass discharged from each barrel pot can be reliably collected in each barrel pot without mixing with each other. Since there is no need to measure the media midway as in the conventional method, there is no need for an expensive measuring device, and there is no trouble caused by distribution errors. Moreover, in this invention, the contents of each barrel pot can be simultaneously discharged to the stocker by tilting the turret until it is in a downward position, and the four buckets allow mass to be simultaneously introduced into each barrel pot, so that it can be directly used for polishing. It is possible to significantly increase the actual operating rate by reducing non-contributing loss time. In addition, a chain-driven conveyor equipped with four buckets is used to sequentially move the media between the media discharge position, workpiece input position, and mass input position, making it possible to carry out efficient media loading operations. .

Therefore, the present invention makes an extremely large contribution to the industry as a centrifugal barrel polishing device that solves the problems of the conventional art.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a partially cutaway front view showing the turret in a tilted state, and Fig. 3 is a partially cutaway plan view of Fig. 1; FIG. 4 is a partially cutaway plan view showing a portion below the stocker, and FIG. 5 is a partially cutaway plan view showing the planetary gear mechanism. 3: Horizontal axis, 4: Turret, 5: Barrel pot, 18, 19: Stocker, 21, 22: Partition plate, 28: Sorting machine, 32: Partition plate, 33, 34:
Bucket, 35: Work input chute, P: Media discharge position, Q: Work input position, R: Mass input position.

Claims (1)

[Scope of utility model registration request] A turret 4 supported so as to be tiltable around a horizontal axis 3 until it assumes a downward position, two barrel pots 5 provided on the turret 4 in two sets, and a total of four barrel pots 5, and a lower part of the turret 4. The partition plate 2 is provided in the center so that it can be tilted downward separately.
There are two stockers 18 and 19 divided into two by 1 and 22, respectively, and the stockers 18 and 19 are provided at the bottom and the center is divided into two compartments by a partition plate 32, and the stocker 18 is discharged from each compartment. a media sorter 28 that separately sorts the media discharged from each compartment of the other stocker 19 after sorting the media separately; The media discharged from the compartments and sorted by the sorter 28 are returned to the two barrel pots 5 described above, and the media discharged from each compartment of the two buckets 33 and the other stocker 19 are sorted by the sorter 23. A chain-driven conveyor equipped with two buckets 34 that return the discharged media to the other set of two barrel pots 5, and a media discharge position P of the sorter 28 and a mass input position R to the barrel pot 5. and a workpiece inputting chute 35 for supplying the workpieces to each of the buckets 33 and 34 at a workpiece inputting position Q of the chain-driven conveyor located between the centrifugal barrel polishing and Device.