JPH0512077U - Centrifugal barrel polishing device - Google Patents

Abstract

(57) [Summary] [Purpose] A bucket conveyor in which the mass collected from a centrifugal barrel polishing device in which a turret with a plurality of barrel pots that perform planetary rotation motion is freely reversible is sent to a barrel pot by a bucket conveyor. Make sure that all the mass released can be introduced into the barrel pot. [Structure] A plurality of barrel pots 5 for planetary rotation
And a bucket conveyor 27 having a bucket 30 for feeding the mass discharged from the barrel pot 5 and discharged downward through the stocker 18 to the barrel pot 5 when the turret 4 is inverted. In the centrifugal barrel polishing apparatus, the bucket 30 transferred to the mass feed position between the barrel pot 5 and the mass feed position at the upper end of the bucket conveyor 27.
A guide hopper 46 is provided that reciprocates between a lower position and a sideward retracted position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a centrifugal barrel polishing device used for deburring small parts and surface polishing.

[0002]

[Prior Art]

 A turret that is installed in a reversible manner so that a plurality of barrel pots that perform planetary rotational movement are in two states: a normal state with its opening facing upward and a discharge state with its opening facing downward, and the lower part of this turret. The stocker provided as a storage unit for storing the mass discharged from the barrel pot and sending the mass downward, and a device for receiving and collecting the mass discharged from the stocker, and collecting the mass as necessary. A centrifugal barrel polishing apparatus for feeding the above-mentioned material to the barrel pot is already known from Japanese Utility Model Laid-Open No. 63-182852. In addition, the barrel pot is installed in a reversible manner so as to have two modes: a normal state in which the opening portion faces upward and a discharge state in which the opening portion faces downward, and receives the mass delivered from the barrel pot. A centrifugal barrel polishing apparatus provided with a bucket conveyor having a plurality of buckets for feeding to the barrel pot is already known from Japanese Utility Model Laid-Open No. 63-169250.

However, as in the former case, a plurality of barrel pots that perform planetary rotational movement are installed in a reversible manner so as to take two modes: a normal state in which the opening portion faces upward and a discharge state in which the opening portion faces downward. The turning radius of the turret made when reversing is large, so when the mass collected by the bucket conveyor having multiple buckets is sent to the barrel pot like the latter, it is moved to the mass feeding position at the upper end of the bucket conveyor. It is necessary to provide a sufficient space between the bucket and the barrel pot so that the turret can be inverted. However, the mass discharged from the bucket is composed of a mixture of media, work, compound, etc., and its shape and size are various, and the discharge from the bucket is disturbed and it is difficult to perform it uniformly and smoothly. Moreover, it is difficult to make the opening of the barrel pot sufficiently wide, and there is a problem that the trout easily falls out of the barrel pot.

[0004]

[Means for Solving the Problems]

 The present invention was completed for the purpose of solving the above-mentioned problems and making it possible to reliably introduce all the mass discharged from the bucket into the barrel pot. A turret installed so that the barrel pot can be turned upside down so as to have a normal state in which the opening portion faces upward and a discharge state in which the opening portion faces downward, and a turret provided below the turret and discharged from the barrel pot. In the centrifugal barrel polishing apparatus, there is provided a stocker for storing the masses to be stored and sending the masses downward, and a bucket conveyor having a plurality of buckets for receiving the masses sent from the stocker and sending the masses to the barrel pot. Was transferred to the mass feed position between the mass feed position at the upper end of the and the barrel pot. It is characterized in the provision of the draft hopper reciprocating between ket the lower position and the retracted position of the side.

[0005]

[Action]

 Such a centrifugal barrel polishing machine performs planetary rotation to perform barrel polishing in a normal state in which a plurality of barrel pots face upward, and after polishing, the turret is moved downward with the barrel pot opening facing downward. The mass is discharged from the barrel pot and stored in the stocker once, and then the mass is delivered from this stocker. The delivered mass is received by a plurality of buckets on the bucket conveyor and is delivered to the barrel pot. Feeding is similar to the conventional centrifugal barrel polishing machine of this type, but when feeding the mass delivered from the stocker from the bucket to the barrel pot, it is placed between the mass feeding position at the upper end of the bucket conveyor and the barrel pot. Since the guide hopper is located at the mass feed position of the mass, the mass has a wide top opening close to the bucket. Narrow outlet of the lower end becomes the be fed into the barrel pot via a guide hopper which is close to the upper end opening of the barrel pot, trout never spill outside bar Rerupotto with. Moreover, when the turret is turned over, the guide hopper is retracted to the side of the above-mentioned mass feeding position, so that the guide hopper does not become an obstacle when the turret is turned over.

[0006]

【Example】

 The present invention will now be described in detail with reference to the illustrated embodiment. Reference numeral 1 is a frame-shaped machine base, and a tilting frame 3 is supported between a pair of horizontal shafts 2 supported by the machine base 1, and a turret 4 is rotated in the tilting frame 3. It is held freely and a plurality of barrel pots 5 are arranged on the turret 4 so as to be capable of planetary rotation. That is, as shown in FIG. 3, the turret 4 is rotated via a chain 7 by a motor 6 attached to one side of the tilting frame 3, and is independently rotated about a central axis 8 of the turret 4. A freely rotatable sun gear 9 is rotatable via a motor 10, a chain 11 and the like provided on the tilting frame 3, and a planet gear (not shown) attached to the lower portion of each barrel pot 5 is connected via an idler gear. Since each of the barrel pots 5 is meshed with the sun gear 9 described above, the barrel pots 5 are revolved by the rotation of the turret 4 along with the rotation of the turrets 4 to make a planetary rotational movement. A chain gear 12 is fixed to one horizontal shaft 2 of the tilting frame 3, and a chain 15 is stretched between the chain gear 12 and a chain gear 14 of a prime mover 13 installed on the machine base 1. Then, the tilting frame 3 and the turret 4 held by the tilting frame 3 are rotated about the horizontal shafts 2 and 2 by the operation of the prime mover 13, and the opening of the barrel pot 5 as shown in FIG. The normal posture and the inverted posture in which the opening of the barrel pot 5 faces downward as shown in FIG. 4 are adopted.

As shown in FIG. 3, reference numeral 16 is a lid that opens and closes an opening 17 that is a work supply port formed in the upper portion of the barrel pot 5, and is rotated by a fluid pressure cylinder (not shown) built in the central shaft 8. The opening 17 can be opened and closed. Further, a plurality of sets of stockers 18 are rotatably supported on the machine base 1 below the turret 4 via respective shafts 19, and each shaft 19 is a motor 20 installed on the machine base 1, A transmission mechanism 21 composed of a chain, a chain gear, etc. can be separately rotated by 20. As shown in FIG. 4, when the turret 4 is in the inverted position with the opening 17 of the barrel pot 5 facing downward, each stocker 18 is placed on the side where the opening side faces upward and the mass discharged from each barrel pot 5 is discharged. When the motor 20 is received and stored, and then the motor 20 is actuated to rotate through the transmission mechanism 21 so that the opening side faces downward, the stored mass can be discharged to the sorting machine 22 therebelow. The sorter 22 is of a vibrating screen type driven by a vibrator (not shown), and sorts the mass discharged from each stocker 18 into a work and a media by a screen, and drops the media to a lower trough 23 as well as the work. Can be carried out from the chute 24 on the tip side.

In the casing 25 of the machine base 1, there is provided a bucket conveyor 27 for returning the medium discharged from the discharge port 26 of the trough 23 to the barrel pot 5 waiting at the upper mass feeding position A over the outer peripheral portion of the machine base 1. It is provided with a bucket 30 that is run by a chain 29 that is spanned by an appropriate number of chain gears 28 that are axially supported by a casing 25. The chain 29 is located below the machine base 1. When the provided motor 31 is driven, it travels through the chain gear 32 of the drive shaft, the chain 33, and the chain gear 34 fixed to the shaft of the chain gear 28 on the proximal end side. As described above, the bucket 30 located below the discharge port 26 and receiving the medium discharged therefrom advances by the chain 29 which is driven by the drive of the motor 31, and is forwarded by the work supply portion provided on the vertical wall portion of the casing 25. At 35, the work is supplied, and further rises to open the lid 16 at the mass feeding position A in the upper horizontal part and stop on the barrel pot 5 which stands by in a horizontal posture. Here, the bucket 30 has a structure in which it is directed downward by a rotation mechanism (not shown) and discharges the stored mass, and the above structure is almost the same as the conventional structure.

Further, a pair of support legs 36 are erected on the machine base 1, and a groove-shaped frame 37 is placed on the upper side of each support leg 36 so that their open sides face each other, as shown in FIG. Are mounted horizontally and in a horizontal direction, and the respective tip ends extend to the turret 4 side in a horizontal posture, that is, the side of the mass feeding position A. A chain gear 38 is rotatably supported at both ends of both frames 37 in the longitudinal direction, and roller chains 39, 39 are spanned between them, and the side below the roller chain 39 is a guide attached to the frame 37. Guided by rail 40. A pair of chain gears 38 located outside the machine base 1 are connected by a connecting shaft 41 pivotally supported by a frame 37, and a chain gear 42 is fixed to one end of the connecting shaft 41. A chain 45 is laid between the chain gear 42 and the chain gear 44 of the motor 43 attached to the frame 37. The roller chains 39 are driven by the motor 43 to drive the chain gear 44, the chain 45, The chain gear 38 that rotates via the chain gear 42 can run along the frames 37, 37.

Reference numeral 46 denotes a funnel-shaped guide hopper that guides the flow of the mass discharged and dropped from the bucket 30. In the embodiment, the guide hopper 46 is located at the position of the opening 17 of the barrel pot 5 shown in FIG. Correspondingly, the same number of arrays are fixed to the connecting frame 47. On the side wall 48 of the connecting frame 47 facing the frame 37, connecting arms 49 connected to the roller chain 39 via an attachment are provided in a protruding manner. Further, on the lower side of the side wall 48, the lower side of the frame 37 is connected. It is a trolley structure that travels along the frame 37 by a roller chain 39 that can travel above. Therefore, the guide hopper 46 arranged and fixed to the connecting frame 47 moves back and forth between the mass feeding position A and the standby position B, which is separated from the mass feeding position A by the movement of the roller chain 39 by the motor 43. It is movable. When reaching the mass introduction position A, the upper openings 51 of the guide hoppers 46 are located below the buckets 30 located at the mass introduction position A, respectively, and are of a size capable of reliably receiving the mass discharged therefrom. Also, at this position, the lower opening 52 has a predetermined space above the corresponding opening 17 of the barrel pot 5 held with the lid 16 open to the turret 4 in the horizontal position. Is positioned so that the mass that flows down is surely introduced into the barrel pot 5 through the opening 17. In the embodiment, since the barrel pots 5 on the turret 4 are composed of two rows and four, the corresponding guide hoppers 46 are also set as one set, but this is increased or decreased depending on the number of barrel pots 5. Of course. Although the guide hopper 46 is also funnel-shaped, various modifications are possible as long as it has a shape and size capable of receiving and storing all the mass discharged and dropped from the bucket 30.

In the structure thus configured, first, the connecting shaft 41 is rotated by driving the motor 43 through the chain gear 44, the chain 45, and the chain gear 42, and the chain gears 38, 38 of the connecting shaft 41 are rotated. The roller chains 39 on both sides of the machine are run by, and the guide hopper 46 is positioned along the both frames 37 at the standby position B outside the machine base 1 via the connecting frame 47 connected by the connecting arms 49, 49. Keep it. Further, with the turret 4 in a horizontal posture, the lid 16 of the barrel pot 5 is opened by a fluid pressure cylinder (not shown), and its opening 17 is left open. Next, the motor 43 is driven in the reverse direction to reversely drive the roller chain 39, and the guide hopper 46 is advanced together with the connecting frame 47 to stop at the mass insertion position A which is the corresponding position above the ball pot 5. After that, the media and the work discharged from the trough 23 of the sorter 22 through the discharge port 26 are moved forward by the traveling of the chain 29 by the drive of the motor 31 on the buckets 30 and 30 of the bucket conveyor 27 in which the supply unit 35 is loaded. Then, it is stopped at the mass insertion position A in the upper horizontal part. When the buckets 30 are inverted and the masses are discharged from the buckets 30, they flow down through the upper openings 51 of the corresponding guide hoppers 46, and then from the lower openings 52 to the openings of the respective barrel pots 5. It is loaded into the interior through the part 17. Then, the motor 43 causes the roller chain 39 to travel again, the connecting frame 47 holding the guide hopper 46 to retreat in the same manner as described above, to stop at the standby position B, and the motor 31 causes the chain 29 to run in the reverse direction to move each bucket. 30 is retracted from the mass feeding position A and returned to the standby position below the sorting machine 22.

Then, after a predetermined amount of polishing liquid is supplied into each barrel pot 5 from a water pipe (not shown), each lid 16 rotates in the reverse direction to close the opening 17 of each barrel pot 5. Next, the turret 4 is rotated by the motor 6 through the chain 7 and the sun gear 9 is rotated by the motor 10 through the chain 11, and the barrel pots 5 are rotated by way of idler gears (not shown) to rotate the planetary gears. Exercise is performed and centrifugal barrel polishing is performed. When the polishing is completed, the prime mover 13 is operated to rotate the horizontal shafts 2 by the chain gear 14, the chain 15 and the chain gear 12 so that the tilting frame 3 and the turret 4 in the horizontal position are inclined downward and downward. Open the lid 16 of each barrel pot 5. As a result, the internal mass is discharged into the respective stockers 18 below, and subsequently, washing water is fed into each stocker 18 by a water supply device (not shown) and the conduction mechanism 21 is activated by the operation of each motor 20. The stocker 18 is sequentially turned downward via the tray, and the mass is discharged onto the sorter 22. The work is carried out of the chute 24 by the operation of a vibrator (not shown), while the media passes through the screen portion and drops into the trough 23, and the bucket 30 waiting from the discharge port 26 thereof. The barrel pots 5 that have been emptied during this time are returned to the horizontal position at the mass feeding position A by the rotation of the tilting frame 3 by the reverse operation of the prime mover 13 and the lid 16 is opened to be in a standby state. After that, the above operation is repeated.

[0013]

[Effect of the device]

 As is clear from the above description, the present invention has the guide hopper positioned between the lower part of the bucket and the upper part of the barrel pot when the mass is put in. Therefore, the discharged mass is guided to the outside by being guided by the guide hopper. It is surely introduced into the barrel pot without spilling, and therefore the mass is scattered on the tilting frame, the machine base, and other pot lid sealing surfaces, causing no sealing failure or water leakage, and the sealing part Not only can it be prevented from being scratched, but it can also be prevented from mixing into the untreated work side, and the labor for cleaning, inspection, etc. is greatly reduced. Furthermore, since the guide hopper is retracted to the standby position except when the mass is loaded, it does not hinder the rotation of the tilting frame and other operating processes. Therefore, the present invention has extremely great practical value as a solution to the problems of the conventional barrel polishing apparatus of this type.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing a main part of an embodiment of the present invention.

FIG. 3 is a partially cutaway plan view showing an embodiment of the present invention.

FIG. 4 is a partially cutaway front view of the present invention showing the turret in an inverted discharge state.

[Explanation of symbols]

 4 Turret 5 Barrel pot 18 Stocker 27 Bucket conveyor 30 Bucket 46 Guide hopper

Claims (1)

[Scope of utility model registration request] 1. A plurality of barrel pots for planetary rotational movement.
The opening (5) with the opening facing upwards
Reversible so as to take two modes of downward discharge
Installed turret (4) and below this turret (4)
The mass provided from the barrel pot (5)
The stocker (18) that stores it and sends it out downwards,
Receive the mass sent from the stocker (18) and
A basket with multiple buckets (30) feeding into the lupot (5)
In a centrifugal barrel polishing machine equipped with a bucket conveyor (27).
And feed the mass at the upper end of the bucket conveyor (27).
The mass feed between the position and the barrel pot (5)
The lower position of the bucket (30) transferred to the only position and its side
The guide hopper (46) that reciprocates between the retracted position of
A centrifugal barrel polishing device characterized by the above.