JPH0647648Y2 - Inserting device for workpiece and media in barrel polishing machine - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention puts a workpiece together with media and a compound into a polishing tank, and deburrs, rounds, and polishes the workpiece while performing relative movement. The present invention relates to a device for inserting a workpiece and a medium into a polishing tank from above in a barrel polishing apparatus to be performed.

(Prior Art) Conventionally, in the barrel polishing apparatus, when a predetermined amount of workpieces and media are loaded into a polishing tank, a predetermined amount of these contents are loaded into a bucket, and then the bucket is moved upward from the polishing tank. It is normal to position it, and then gradually incline it before putting it in.

(Problems to be solved by the invention) However, in this method, there is a problem in that since the drop of the workpiece into the polishing tank is large, hitting often occurs on each surface due to collision of the workpieces.

(Means for Solving Problems) The present invention solves the above-mentioned problems, and a workpiece in a barrel polishing apparatus that can be put into a polishing tank without generating hammering on the workpiece, and The purpose is a media loading device.In the device for loading the work and media in the barrel polishing device in which the bucket for storing the work and the media is movably arranged above the polishing tank, an opening is formed at the bottom of the bucket. An opening / closing plate that opens and closes the opening is slidably attached to a guide shaft supported between the brackets by forming brackets on the lower side of the bucket at intervals. Between one of the brackets and the mounting arm, an elastic member that constantly urges the opening / closing plate to maintain the opening / closing plate in the closed position is interposed and the opening / closing plate is The end is provided with a locking member which is locked to a part of the polishing tank by traveling of the bucket and opens the opening / closing plate against the elastic force of the elastic member.

(Operation) In such an input device, the bucket is moved to the upper side of the polishing tank when the motor is driven after loading the predetermined amount of the work and media into the bucket with the polishing tank facing upward. Then, at a predetermined position on the polishing tank, the locking member of the opening / closing plate abuts on the stopper portion of the polishing tank, whereby the opening / closing plate is stopped against the traveling bucket against the elastic force of the elastic member, The opening at the bottom of the bucket is opened sequentially from one end. As a result, the workpieces and media in the bucket are sequentially loaded into the polishing tank in a state of being naturally dropped from the opening. Then, when the opening of the bucket is completely opened by the traveling of the bucket and all the workpieces and the like are put into the polishing tank, if the motor is rotated in the reverse direction, the bucket moves backward and leaves the polishing tank, thereby opening and closing. The plate is gradually returned by the elastic member, and the opening is completely closed when the locking member leaves the stopper portion. The emptied bucket is then returned to the lower sorter position, where the workpiece and media are reloaded.

(Embodiment) Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. (1) is a base, and a pair of gate-shaped frames (2) and (2) are installed upright on the base. As shown in the drawing, bearings (3) are provided correspondingly, and the polishing tank (4) of the barrel polishing apparatus is rotatably supported by the bearings (3). That is, the horizontal shafts (6) projecting from both sides of the lower rotating frame (5) in the polishing tank (4) are respectively supported by the bearings (3) so that the rotating frame (5) has a vertical surface. A cylindrical fixed tank (7), which is the upper side of the polishing tank (4), is mounted on the rotating frame (5). A liner (8) made of polyurethane or the like is attached to the inner surface of the fixed tank (7), and a similar liner (10) is provided on the fixed tank (7).
An upper cylinder (9) attached with is attached. (11) is a dish-shaped bottom plate positioned inside the rotating frame (5), and the dish-shaped bottom plate (11) is a boss portion (12) at the center of the rotating frame (5).
It is fixedly supported by a vertical axis (14) that is axially supported by a bearing (13) attached to the. Pulley (15) at the lower end of this vertical axis (14)
, A motor (17) is fixed to a horizontal base (16) held at the lower end of the bearing (13), and a pulley (18) attached to its drive shaft and the pulley (15). A belt (19) is stretched between it and the plate-shaped bottom plate (1
1) can be horizontally rotated by driving a motor (17) via a pulley (18), a belt (19) and a pulley (15). A liner (20) similar to the above is attached to the inner surface of the dish-shaped bottom plate (11), and the upper end surface of the liner (20) is the lower end surface of the liner (8) of the fixed tank (7). Both liners (8) and (20) are made slidable so as to be continuous, and form the inner surface of the polishing tank (4). Further, a chain gear (21) is attached to one horizontal shaft (6), and the chain gear (2
1) is connected to the chain gear (24) of the drive shaft of the motor (23) mounted on the base (1) via the chain (22), and the polishing tank (4) is driven by the horizontal shaft by the drive of the motor (23). It can be rotated in a vertical plane about (6). (25) is a sorter elastically supported on the base (1) through a suitable number of elastic members (26), and is disposed below the polishing tank (4),
The trough (27) of the sorting machine (25) is provided with a screen portion (28) capable of performing a predetermined sorting, and the tip side of the screen portion (28) faces a separately arranged transfer device (29), Further, a chute portion (30) for discharging the selected media passing through the screen portion (28) has a bottom portion (3) of the trough (27).
A vibration motor is formed at the tip of 1) and a pair of (32) is symmetrically attached to both sides of the trough (27). (3
3) is a conveying device for workpieces and media, which is arranged so as to be positioned over the polishing tank (4) from the chute (30) side of the sorting machine (25), and the conveying device (33) is a casing-like shape. It has a frame (33a) and its sorting machine (2
The side wall (33b), (33
As shown in FIG. 2, bearings (34) and (34) are provided in b) so as to face each other, and a rotary shaft (35) is rotatably supported between the bearings (34). The chain gear (36) fixed to 35) is connected via a chain (37) to the chain gear (39) of the drive shaft of the motor (38) installed on the base (1), and also the rotary shaft (35). ) Near the side wall (33b) of the chain gear (4
0) is fixed. Further, on the tip end side of the portion of the transfer device (33) located above the polishing tank (4), the chain gears (41) are located at positions corresponding to the chain gears (40) and (40), respectively.
Is mounted on a shaft (43) that is rotatably supported by a bearing (42) mounted on the side wall (33b).
Chains (44) and (44) are hung between (40), respectively, and both chains (44) are guided along the casing of the transport device (33) by similarly mounted guide chain gears (45). Are arranged. Reference numeral (46) is a bucket for carrying the work media, which is attached to the chain (44) and can reciprocate between the upper and lower sides of the carrying device (33).
On both side walls (47) along the running direction of 6),
As shown in FIGS. 4 and 5, support shafts (48) are horizontally projected, and a connecting member (49) connected to the chain (44) is rotatably attached to the support shaft (48). Further, roller shafts (50) are horizontally projected from the side walls (47) at intervals in the running direction, and the roller shafts (50)
A guide roller (51) is rotatably attached to each of the guide rollers (51), and these guide rollers (51) are engaged with guide rails (52) formed corresponding to the side walls (33b) of the conveying device (33). ing. As a result, the bucket (46) moves the chain gear (39), chain (37), and chain gear (36) under the engagement of the guide roller (51) and the guide rail (52) by the drive of the motor (38). The rotating shaft (35) that is rotated and the chains (44) and (44) that are moved by the rotation of the rotating shaft (35) through the chain gears (40) and (41) cause the lower sorter (25) to move. It is configured to travel back and forth between the tip side and the upper part of the polishing tank (4) above. And bucket (4
An opening (53) is formed at the bottom of 6), and brackets (54) and (55) are provided at the lower part of the side wall (47) at intervals in the traveling direction. Bracket (5
A guide shaft (56) having an axis parallel to the traveling direction of the bucket (46) is supported between 4) and (55). (57) is an opening / closing plate that opens and closes the opening (53) of the bucket (46), and mounting arms (58) are formed on both sides of the opening and closing plate,
Both mounting arms (58) are slidably attached to the guide shaft (56), and the opening / closing plate (57) is slidable in the traveling direction of the bucket (46) along the opening (53). The opening (53) is opened and closed. A coil-shaped elastic member (59) is wound around the guide shaft (56) between the mounting arm (58) and one of the brackets (55). Mounting arm (58)
Is normally urged to be pressed to the other bracket (54) side, and therefore the opening / closing plate (57) is always
The opening (53) is kept closed. Further, a locking member (60) is provided on one end of the opening / closing plate (57) so as to project downward, and the locking member (60) includes a bucket (46) and a chain (4).
When traveling above the polishing tank (4) by driving 4),
It is formed so as to be able to engage with a stopper portion (61) provided on the upper tubular body (9) which is one end of the polishing tank (4), whereby the opening / closing plate (57) is provided with respect to the traveling bucket (46). The elastic member (59) is stopped by the elastic force of the elastic member (59) when stopped by the (61), and the opening (53) of the bucket (46) is automatically opened. Buckets on the lower side (46)
It is a stopper when is returned.

With such a structure, first, the polishing tank (4) is set to the upward polishing work position, and a predetermined amount of the work and the medium are put into the bucket (46) located at the lower position shown by the two-dot chain line. Charge. In this case, since the mounting arm (58) of the opening / closing plate (57) is pressed and held toward the bracket (54) by the elastic force of the elastic member (59) of the bucket (46), the opening / closing plate (57) is It is located at the leftmost position in the figure, and the bottom opening (53) of the bucket (46) is closed. When the predetermined charging work is completed, the motor (38) is driven to drive the chain gear (3
9), chain (37), chain gear (36), then rotating shaft (3
5) rotates, and further, the chain gear (40) of the rotating shaft (35)
The chain (44) moves through the bucket, the bucket (46) attached to the chain starts traveling, and each guide roller (5
1) under the engagement of the guide rail (52) with the bucket (4
6) rises and advances above the polishing tank (4). When the bucket (46) reaches the designated upper position, the locking member (60) of the opening / closing plate (57) comes into contact with the stopper portion (61) of the upper tubular body (9) which is one end of the polishing tank (4). Locked, and as a result,
The opening / closing plate (57) is stopped against the traveling bucket (46) against the elastic force of the elastic member (59), whereby the opening (53) of the bucket (46) is sequentially opened from one end thereof. This opens the workpiece and media in the bucket (46) (53)
In the state of more natural fall, they are sequentially put into the polishing tank (4). When the opening (53) is completely opened by the traveling of the bucket (46) and the introduction of the work or the like is completed, the bucket (46) is traveling in the reverse direction by rotating the motor (38) in the reverse direction. ) Leaving above, the opening / closing plate (57) is an elastic member (59).
The elastic force causes the opening (53) to close when the locking member (60) leaves the stopper portion (61). In this state, the empty bucket (46) returns to the position of the lower sorting machine (25) and enters the standby state. On the other hand, to the polishing tank (4) in which the work and the media are put, a predetermined amount of compound and water are supplied from a piping device (not shown), and then the motor (17) is activated to drive the pulley (18) and the belt (19). ), The vertical axis (14) through the pulley (15) and the dish-shaped bottom plate (11) fixed to this rotate at high speed, and the workpieces and the like in the polishing tank (4) are lifted by centrifugal force and fixed ( The polishing work is started by turning along the inner wall of 7). After polishing, stop the motor (17), stop the dish-shaped bottom plate (11), drain the inside of the polishing tank (4), and then start the motor (23) to activate the chain gear (24), chain (22), The horizontal shaft (6) is gradually rotated through the chain gear (21) to turn the polishing tank (4) downward. With this, the internal work etc. is sequentially put into the trough (27) of the lower sorting machine (25) which is in operation by the operation of the vibration motor (32) in advance, and is sifted by the screen part (28), The work piece advances on the screen part (28) and is sent out from the tip part thereof to the conveying device (29), while the medium passing through the screen part (28) and falling on the bottom part (31) is transferred to the bottom part ( 31) It goes up and is sent out from the chute (30) on the tip side into the waiting bucket (46). The polishing tank (4) which has finished discharging the workpiece and the medium is returned to the original upward position by the reverse rotation of the motor (23). Further, the sorting machine (25) stops the vibration motor (32) after the completion of the sorting process in the trough (27) to bring it into a stopped state. The bucket (46) into which the media collected as described above has been fed is loaded with a predetermined amount of workpieces, and the above operation is repeated again. Although the disk-type centrifugal barrel device is shown as the barrel polishing device in the embodiments, it can be applied to other types of barrel polishing devices such as a vibrating barrel polishing device and an oscillating rotary barrel polishing device.

(Effect of the Invention) As is clear from the above description, according to the present invention, since the opening of the bottom of the bucket is performed by the opening / closing door which is opened and closed along the opening, the opening position is most close to the upper opening of the polishing tank. Therefore, it is possible to set the work head into the polishing tank to a minimum, and since the opening of the opening / closing plate is performed according to the traveling of the bucket, the opening area is fixed at a constant rate. As the number of workpieces increases, the workpieces are sequentially introduced into the polishing tank at a substantially constant rate, and the occurrence of hammering on the workpieces becomes extremely small. In addition, the opening and closing mechanism of the opening and closing plate does not use power such as a motor or cylinder, and has an extremely simple structure that automatically performs according to the traveling of the bucket, so the equipment cost is low, and furthermore, by not using power, There are various problems such as wiring and rubber hose winding and unwinding problems that accompany the traveling of the bucket, and the various advantages such as compactness and easy handling. It is of great practical value as a solution to this problem.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a partially cutaway front view of the bucket in a loading position,
2 is a partially cutaway side view of a main part, FIG. 3 is a partially cutaway front view of a bucket, and FIG. 4 is a partially cutaway side view of a bucket. (4): polishing tank, (33): transfer device, (46): bucket, (53): opening, (54), (55): bracket, (5
6): guide shaft, (57): open / close plate, (58): mounting arm, (59): elastic member, (60): locking member.

Claims (1)

[Scope of utility model registration request] 1. A bottom part of a bucket (46) in a work piece and media input device in a barrel polishing device in which a bucket (46) for storing a work piece and a medium is movably arranged above a polishing tank (4). An opening (53) is formed in the bottom of the bucket (46) and the bracket (5
4) and (55) are arranged at intervals, and the bracket (5
An opening / closing plate (5) that opens and closes the opening (53) through a mounting arm (58) on a guide shaft (56) supported between (4) and (55).
7) is slidably attached, and the bracket (54),
An elastic member (59) for always maintaining the opening / closing plate (57) at the closed position of the opening (53) is interposed between one side of the (55) and the mounting arm (58) and the opening / closing plate (57) is A locking member (60) which is locked at a part of the polishing tank (4) by running the bucket (46) at one end to open the opening / closing plate (57) against the elastic force of the elastic member (59). A workpiece and media input device in a barrel polishing device, which is provided with.