Buffing apparatus and method

Abstract: A wet type buffing method is practiced such that a final buffing step (G) is conducted in a buffing liquid having alkality and the remaining buffing steps (A,B) are conducted in other buffing liquid having acidity. A work buffing apparatus is constructed such that a disconnection preventive member is disposed at the foremost end of a shaft (510) for a work, the outside of a buffing wheel (520) comes in contact with the disconnection preventive member, a tightening nut (540) is threadably engaged with the buffing wheel (520), and the buffing wheel (520) is tightly fixed to the shaft (510) by displacing the tightening nut (540) along the shaft. In addition, a surface treatment conducting method is practiced such that each surface treatment is conducted after a work is subjected to barrel buffing before or after the surface treatment. Additionally, a work supporting apparatus includes a buffing medium (762) receiving container having a buffing medium received therein and a work supporting arm (792). Further, a buffing medium (762) employable for a buffing apparatus is composed of grain of soft material or small block of the soft material.

Description: BACKGROUND OF THE INVENTION The present invention relates to a barrel buffing apparatus, as per the preamble of claim 1. An example of such an apparatus is disclosed by US 3 623 278 A. With the conventional barrel buffing apparatus, each work is subjected to buffing by allowing a buffing medium to flow in a buffing medium receiving container while the work is dipped in the buffing medium received in the buffing medium receiving container. However, with the conventional barrel buffing apparatus, since each work is dipped in the barrel buffing medium received in the buffing medium receiving container while it is seized immovably, there arises an inconvenience that it is difficult to buff the work in a short time. US 3623 278 A discloses or suggests an apparatus for abrasively finishing a workpiece, including a grinding medium receiving container having a mass of grinding medium received therein and a work supporting arm, said abrasive medium receiving container includes an upper end opening, said work supporting arm can be rotated about an axis line thereof, and a work can be detouchably attached to the foremost end of the work supporting arm. Said work supporting arm can forwardly and backwardly be displaced in the axial direction and said work supporting arm can turnably be displaced in the horizontal direction. The present invention has been made in order to eliminate by more details the inconvenience inherent to the conventional technique commonly used. Therefore, an object of the present invention is to provide an barrel buffing apparatus which assures that an operational efficiency of each barrel buffing operation can be improved. (STRUCTURE OF THE INVENTION AND ADVANTAGEOUS EFFECTS) According to the the present invention, the barrel buffing apparatus is constructed having the features of claim 1. (BRIEF DESCRIPTION OF THE DRAWINGS) Fig. 1 is a perspective view showing an first embodiment of the present invention. Fig. 2 is a perspective view showing an attached/detached state assumed by the barrel buffing apparatus shown in Fig. 1. Fig. 3 is an illustrative view showing a forward/rearward displacing mechanism employable for a work supporting arm arranged on the work supporting unit shown in Fig. 1. Fig. 4 is an illustrative view showing a rotating mechanism employable for a reversing plate arranged on the work supporting unit shown in Fig. 1. Fig. 5 is a sectional view showing a second embodiment of the present invention. Fig. 6 is a sectional view showing an apparatus which is not part of the present invention. Fig. 7 is a sectional view showing a third embodiment of the present invention. (DESCRIPTION OF PREFERRED EMBODIMENTS) Fig. 1 is a perspective view showing a work supporting unit employable for a barrel buffing apparatus constructed in accordance with an first embodiment of a present invention wherein a work is held in the buffing state, Fig. 2 is a perspective view showing the attached/detached state of the work in the barrel buffing apparatus, Fig. 3 is an illustrative view showing a forward/backward displacing mechanism for a work supporting arm in the work supporting unit, and Fig. 4 is an illustrative view showing a rotating mechanism for a reversing plate in the work supporting unit. In Fig. 1 and Fig. 2, reference numeral 9B designates a barrel buffing apparatus, and reference numeral 910 designates a base board for the barrel buffing apparatus 98. Reference numeral 920 designates a buffing medium receiving container, and this buffing medium receiving container 920 is mounted on the base board 910. The buffing medium receiving container 920 is designed to exhibit a cylindrical configuration so that it can be rotated about an axis line thereof in the circumferential direction by actuating suitable driving means (not shown). Reference numeral 921 designates a buffing medium, and this buffing medium 921 is received in the buffing medium receiving container 920. All kind of normally available material such as ceramic grain or the like can be used. Incidentally, a wet type buffing process may be used for practicing a buffing method, and alternatively, a dry buffing process may be used for practicing the buffing method. Reference numeral 922 designates an upper end opening which is formed at the upper end of the buffing medium receiving container 920, and a work (aluminum Wheel usable for vehicle or the like) W to be described later is dipped in the buffing medium 921 via the upper end opening 922. Next, reference numeral 911 designates a supporting frame, and this supporting frame 911 upright stands on the base board 910. The supporting frame 911 is caused to extend in the upward direction to reach the substantially upper end of the buffing medium receiving container 920. Reference numeral 930 designates a reversing plate, and this reversing plate 930 is turnably mounted on the supporting frame 911 via a rotational shaft 931. This reversing plate 930 can be turned within the range of about 180° on the basis of rotation of the rotational shaft 931 (i.e. within the range defined by the state shown in Fig. 1 and the state shown in Fig. 2). In addition, as shown in Fig. 4, a first driving motor 932 is mounted on the supporting frame 911. While the rotational force of the motor 932 is reduced in the decelerated state, the foregoing rotational force is transmitted from a pulley 933 of the first driving motor 932 to a pulley 935 of the rotational shaft 931 via a V belt 934, whereby the reversing plate 930 can reciprocally be turned within the range of about 180°. Reference numeral 940 designates a supporting bed, and this supporting bed 940 is fixed to the reversing plate 930 via a pair of brackets 941. This supporting plate 940 is mounted on the supporting frame 911 in the forwardly inclined state (it is assumed that the fore end side of a work supporting arm 960 to be described later is represented as a forward direction). It should be noted that the inclination angle of the supporting bed 940 can be adjusted. Next, a slide plate 950 is arranged on the rear surface of the supporting bed 940 so as to move in the forward/backward direction along the inclined surface of the supporting plate 940. This slide plate 950 can be displaced relative to the supporting bed 940 in the forward/backward direction by actuating a bolt/nut mechanism 95. Incidentally, reference numeral 9511 designates a bolt portion in the bolt/nut mechanism 95 arranged on the rear surface of the supporting bed 940, and reference numeral 9512 designates a pair of nut portions arranged on the slide plate 950. When a second driving motor 952 is driven, causing the bolt portion 9511 to be rotated, the nut portions 9511, i.e., the slide plate 950 are displaced in the forward/backward direction by way of threadable engagement of the bolt portion 9511 with the nut portions 9512. Referring to Fig. 1 and Fig. 2 again, reference numeral 96 designates a work supporting arm, and as shown in Fig. 3, this work supporting arm 960 is caused to project from the slide plate 950. A work (aluminum wheel usable for vehicle or the like) W is detachably attached to the foremost end of the work supporting arm 960 with the aid of an air chuck (not shown) so that the work W is dipped in the buffing medium 821 received in the medium receiving container 920. In addition, a third driving motor 961 is mounted on the slide plate 950. The work supporting arm 960 can be rotated about an axis line thereof by transmitting the rotational force of the third driving motor 961 to the work supporting arm 960 in the decelerated state. Incidentally, the work supporting arm 960 can intermittently be rotated in the normal direction as well as in the reverse direction. An operation of the buffing apparatus will be described below. Firstly, as shown in Fig. 2, the reversing plate 930 is arranged outside of the buffing medium receiving container 920 by driving the first driving motor 932, causing the rotational shaft 931 to be rotated (refer to the state as represented by phantom lines in Fig. 4). At this time, the fore end part of the work supporting arm 960 assumes an upwardly inclined state. While this state is maintained, an operator places the work W on the foremost end of the supporting arm 960 so as to allow it to be fixed to the supporting arm 960. Thereafter, as shown in Fig. 1, the reversing plate 30 is located inside of the buffing receiving container 920 by driving the firat driving motor 932, causing the rotational shaft 931 to be rotated, whereby the wheel W is dipped in the buffing medium 921 held in the bufffing medium receiving container 920 in the flowing state. Incidentally, while the wheel W is held in the buffing medium 921 in the dipped state, the work supporting arm 960 can fragmentarily be displaced in the vibrative state. After completion of the buffing operation, the reversing plate 930 is located outside of the buffing medium receiving container 920 by driving the first driving motor 932, causing the rotational shaft 931 to be rotated. At this time, the fore end part of the Work supporting arm 960 assumes an upwardly inclined state. While this state is maintained, the operator disconnects the wheel W from the work supporting arm 960, and thereafter, he places a next work on the work supporting shaft 960 so as to allow the next work to be fixed to the work supporting arm 960. Incidentally, when soft material such as sponge, rubber, soft plastic or the like is used in the polishing apparatus 9B as a buffing medium, each finish buffing medium operation can be achieved at a high efficiency. Further, soft material may be coated on the surface of each hard grain or each hard small block. The coated hard grain or the coated hard small block can be used as a buffing medium of the aforementioned type. After the barrel buffing operation is completed, surface treatment such as coating, plating, alumite treatment or the like is carried out for the work, All kind of usually available surface treatment is involved in the concept of surface treatment. Fig. 5 shows a barrel buffing apparatus which is a second embodiment of the present invention. In Fig. 5, reference numeral 88 designates a barrel buffing apparatus, and reference numeral 860 designates a driving section for driving the barrel buffing apparatus 8B. Reference numeral 861 designates a cylindrical buffing medium receiving container, and this buffing medium receiving container 861 is mounted on the driving section 860. The medium receiving container 861 can be rotated about an axis line of the driving section 860 in the circumferential direction by actuating the driving section 860. Reference numeral 862 designates a buffing medium, and this medium 862 is received in the buffing medium receiving container 861. All kind of usually available buffing medium such as ceramic grain or the like can be employed for the buffing medium 862. In addition, a wet type buffing process may be employed for the buffing method, and alternatively, a dry type buffing process may be employed for the buffing method. Reference numeral 863 designates an upper end opening which is formed at the upper end of the buffing medium receiving container, and a work (aluminum wheel usable for vehicle or the like) W to be described later is dipped in the buffing medium 862 via the upper end opening 811. Next, reference numeral 870 designates a base board which is integrated with the driving section 860, and reference numeral 871 designates a supporting column which upright stands on the base board 870. The supporting column 870 is caused to extend in the upward direction to reach the substantially upper end of the buffing medium receiving container 861. Reference numeral 880 designates an attaching bracket, and this attaching bracket 880 is arranged so as to swing on the supporting column 871. Specifically, the attaching bracket 880 can swing about a point 0 along the vertical surface. Reference numeral 890 designates a supporting bed, and this supporting bed 890 is mounted on the attaching bracket 880 via rotating means 881. With this construction, the supporting bed 890 can swing along the vertical surface together with the attaching bracket 880, and moreover, it can turn or swing about an axis line P by driving the rotating means 881. Reference numeral 891 designates a supporting member, and this supporting member 891 is arranged on the supporting bed 890 in such a manner as to enable it to move in the forward/backward direction. In addition, reference numeral 892 designates a supporting arm, and this supporting arm 892 is fitted into the supporting member 891 in such a manner as to enable it to move in the forward/backward direction. Reference character W designates a work (aluminum wheel usable for vehicle or the like), and this work W is attached to the foremost end of the supporting arm 892 via an air chuck 893 so as to allow it to be dipped in the buffing medium 862 received in the buffing medium receiving container 861. An operation of the buffing apparatus constructed in the aforementioned manner will be described below. Firstly, as shown by phantom lines (one-dot chain lines), the supporting arm 892 is mounted to assume the position where its upper end is located directly above the supporting member 891, and thereafter, it is retracted in the downward direction. While the foregoing state is maintained, the wheel W is fixedly mounted on the upper end of the supporting arm 892 with the aid of the air chuck 893. Thereafter, as shown by phantom lines (two-dot chain lines), the supporting arm 892 is caused to extend in the upward direction. Then, as shown by solid lines, the supporting arm 892 is caused to swing about a point 0 together with the supporting member 892 and the supporting bed 890 along the vertical surface, whereby the Wheel W is dipped in the buffing medium 852 which is held in the flowing state in the buffing medium receiving container 861. Incidentally, while the wheel W is dipped in the buffing medium 862, the supporting arm 892 can fragmentally be displaced in the vibrative state: After completion of the buffing operation, the supporting arm 892 is caused to swing about the point 0 in the opposite direction together with the supporting bed 890 along the vertical surface, and then, as shown by phantom lines (two-dot chain lines), the supporting arm 892 is held so as to assume the position where the foremost end of the supporting arm 892 is located directly above the supporting member 891. Thereafter, the supporting arm 892 is retracted in the downward direction to assume the state as represented by phantom lines (one-dot chain lines). While the foregoing state is maintained, the wheel W is disconnected from the foremost end of the supporting arm 892. Subsequently, the aforementioned operational steps are repeated. Incidentally, when soft material such as sponge, rubber, soft plastic or the like is used as a buffing medium employable for the buffing apparatus 8B, each finish operation can be achieved at a high efficiency. Incidentally, soft material may be coated on the surface of each hard grain or hard small block so as to allow the coated hard grain or the coated hard small block to be used as a medium of the aforementioned type. After completion of the barrel buffing operation, surface treatment such as coating, plating, alumite treatment or the like is conducted. All kind of normally available material is employable for achieving the surface treatment. For example, an aluminum wheel usable for a vehicle or the like can be noted as a work employable for carrying out the present invention. However, the present invention should not be limited only to the aluminum wheel as a work but all products each usable as a work are involved in the concept of the work in the present invention. Usually, a wet type buffing method or a dry type buffing method for buffing the buffing surface of a work in the presence of a buffing agent is employed as a buffing method in the present invention. In this case, the number of buffs usable for carrying out the present invention may be limited only to one. Alternatively, a plurality of buffs may be used for carrying out the present invention. Incidentally, a buff wheel can be noted as one example which represents the buff. To carry out the present embodiment, an ordinary wet type buffing method and an ordinary dry type buffing method can be employed for practicing the wet type buffing method and the dry type buffing method wherein the surface of a work is subjected to buffing in the presence of a buffing agent fed between the buffing surface of the work and the working surface of the buff wheel. In addition, to carry out the present invention, any type of barrel buffing method such as a fluid barrel buffing method, a vibration barrel buffing method or the like can be used as a barrel buffing method. Additionally, any type of usually used buffing agent such as ceramic grain or the like can be employed as a buffing agent. Further, the barrel buffing operation performed as a preliminary step for the dry type buffing step can be used as a so-called rough buffing operation. Furthermore, the barrel buffing operation performed as a preliminary step for the wet type buffing operation exhibits the same operational effect as that of the dry type buffing operation, and therefore, it can be used as a so-called intermediate buffing step. Moreover, the barrel buffing operation performed as a post-step for the wet type buffing operation exhibits the same operational effect as that of the wet type operation, and therefore, it can be used as a so-called finish buffing step. Fig. 6 shows a barrel buffing apparatus which is not part of the present invention. In Fig. 6, reference numeral 710 designates a buffing medium receiving container for a barrel buffing apparatus 74. A buffing medium (aggregate) 720 is received in the buffing medium receiving container 710. Incidentally, any kind of usually used buffing medium such as ceramic grain or the like can be employed for the buffing medium 720. Reference numeral 711 designates an upper end opening formed at the upper end of the buffing medium receiving container 710, and the interior of the buffing medium receiving container 710 is communicated with the atmosphere via the upper end opening 711. Reference numeral 712 designates a buffing medium feeding port, and this buffing medium feeding port 712 is formed at the bottom part of the buffing medium receiving container 710. A buffing medium 72 contained in the buffing medium receiving container 710 is caused to naturally fall down via the buffing medium feeding port 712. The intensity of pressure generated by the falling-down of the buffing medium 720 is gradually reduced as the buffing medium 720 is increasingly removed from the buffing medium receiving container 710. Reference numeral 730 designates a guide sleeve, and this guide sleeve 730 is fitted to the bottom part of the buffing medium receiving container 710 in such a manner as to enable the guide sleeve 730 to be rotated. In addition, reference numeral 731 designates a trumpet-like sleeve, and this trumpet-like sleeve constitutes a part of the guide sleeve 730 arranged at the lower part of the guide sleeve 730. A function of the guide sleeve 730 will be described later. Reference character W designates an aluminum Wheel usable for a vehicle or the like (corresponding to a "work" in the present invention). This wheel W can be rotated around an axis line 0 while it is vibrated. Incidentally, when the wheel W is rotated, the guide sleeve 730 inclusive of the trumpet-like sleeve 731 is vibratively rotated. When the buffing medium 72 is caused to naturally fall down from the buffing medium receiving container 710 toward the surface of the wheel W while this wheel W is vibratively rotated, the buffing medium 720 continuously reaches the surface of the wheel W via the guide sleeve 730 with any substantial gap between the buffing medium receiving container 710 and the guide sleeve 730. The buffing medium 720 is discharged in the downward direction via a plurality of holes 751 and 752. Incidentally, as mentioned above, the intensity of feeding pressure generated by the buffing medium 720 to be fed to the wheel W is reduced as the buffing medium 710 is increasingly removed from the buffing medium receiving container 710. Thus, even though a single kind of buffing medium 720 is employed, the surface of the wheel W can be subjected to rough buffing, and moreover, the surface of the wheel W can continuously be subjected to intermediate buffing and finish buffing. After the discharged buffing medium 720 is completely discharged below the zone located below the wheel W, i.e., after the interior of the buffing medium receiving container 710 become empty, the buffing medium 720 is returned again to the buffing medium receiving container 710 by using suitable means (not shown). Thereafter, the wheel W is continuously subjected again to rough buffing, intermediate buffing and finish buffing. A practical extent attained by each buffing operation can be changed by adding pressurized air or water so as to allow the buffing medium 720 to be compressed by the pressurized air or water. After the barrel buffing operation is completed, surface treatment such as coating, plating, alumite treatment or the like is conducted for the wheel W. All kind of usually available surface treatment process is employable for carrying out the foregoing surface treatment. Since the feeding of the buffing medium to the surface of the work is achieved attributable to the natural falling-down of the buffing medium, few noisy sound is generated, and moreover, a quantity of consumption of energy can be minimized. Since the guide sleeve is arranged between the feeding port of the buffing medium receiving container and the surface of the work, the feeding of the buffing medium to the work can be achieved without any loss. Additionally, when the buffing medium received in the buffing medium receiving container can be compressed by using suitable means (not shown), a practical extent attained by each buffing operation performed for the work can be changed. Fig. 7 shows a barrel buffing apparatus constructed in accordance with a third embodiment of the present invention. In Fig. 7, reference numeral 78 designates a barrel buffing apparatus, and reference numeral 760 designates a driving section for driving the barrel buffing apparatus 78. Reference numeral 761 designates a cylindrical buffing medium receiving container, and this buffing medium receiving container 761 is mounted on the driving section 760. The buffing medium receiving container 761 can be rotated about an axis line of the driving section 760 in the circumferential direction by actuating the driving section 760. Reference numeral 762 designates a buffing medium, and this buffing medium is received in the buffing medium receiving container 761. All kind of usually usable buffing medium such as ceramic grain or the like can be employed for the buffing medium 762. Incidentally, the buffing method can be practiced in accordance with a wet type buffing process or a dry type buffing process. Reference numeral 763 designates an upper end opening which is formed at the upper end of the buffing medium receiving container, and the work W is dipped in the buffing medium 762 via the upper end opening 763. Next, reference numeral 770 designates a base board which is integrated with the driving section 760, and reference numeral 771 designates a supporting column which upright stands on the base board 770. The supporting column 771 extends in the upward direction to reach the substantially upper end of the buffing medium receiving container 761. Reference numeral 780 designates an attaching bracket, and this attaching bracket 780 is arranged in such a manner as to swing on the supporting column 771. Specifically, the attaching bracket 780 can swing about a point 0 along the vertical surface. Reference numeral 790 designates a supporting bed, and this supporting bed 790 is mounted on the attaching bracket 780 via rotating means 781. Thus, the supporting bed 790 can swing along the vertical surface together with the attaching bracket 780, and moreover, the supporting bed 790 can turn or swing about an axis line P by driving the rotating means 781. Reference numeral 791 designates a supporting member, and this supporting member 791 is arranged on the supporting bed 790 so as to move in the forward/backward direction. In addition, reference numeral 792 designates a supporting arm, and this supporting arm 792 is fitted to the supporting member 791 so as to move in the forward/backward direction relative to the supporting member 791. It should be noted that the forward/backward direction of the supporting arm 792 is coincident with the forward/backward direction of the supporting member 791. Reference character W designates a work (aluminum wheel usable for vehicle), and this work W is mounted on the foremost end of the supporting ram 792 via an air chuck 793, whereby the work W is dipped in the buffing medium 762 received in the buffing medium receiving container 761. Next, an operation of the apparatus constructed in the above-described manner will be described below. Firstly, as shown by phantom lines (one-dot chain lines), the supporting arm 792 is mounted such that the foremost end of the supporting arm 792 is located directly above the supporting arm 792, and thereafter, this supporting arm 792 is retracted in the downward direction. While the foregoing state is maintained, the work W usable for a vehicle or the like is mounted on the foremost end of the supporting arm 792 by actuating the air chuck 793 so that the work W is fixedly mounted on the supporting arm 792 with the aid of the air chuck 793. Thereafter, as shown by phantom lines (two-dot chain lines), the supporting arm 792 is caused to extend in the upward direction. Subsequently, as shown by solid lines, the supporting arm 792 is caused to swing about the point 0 together with the supporting bed 790 along the vertical surface so that the wheel W is dipped in the buffing medium 762 which is held in the flowing state. Incidentally, while the work W is dipped in the buffing medium 762, the supporting arm 792 can fragmentarily be displaced with the swinging state maintained. After completion of the buffing operation, the supporting arm 792 is caused to swing about the point 0 in the opposite direction together with the supporting member 791 and the supporting bed 790 along the vertical surface, the supporting arm 792 is held to assume the upright state with the foremost end thereof located directly above the supporting member 791 as shown by phantom lines (two-dot chain lines), and thereafter, the supporting arm 792 is displaced in the downward direction to assume the state as shown by phantom lines (one-dot chain lines). While the foregoing state is maintained, the wheel W is disconnected from the foremost end of the supporting arm 792. Subsequently, the aforementioned operational steps are repeated. Incidentally, when soft material such as sponge, rubber, soft plastic or the like is used in the form of grain or small block as a buffing material usable for the buffing apparatus 78, each finish buffing operation can be performed at a high efficiency. Incidentally, soft material may be coated on the surface of each hard grain or hard small block so as to allow it to be used as this kind of buffing medium. After completion of the barrel buffing operation, surface treatment such as coating, plating, alumite treatment is carried out for the work W. All kind of normally employable surface treatment is involved in the concept of surface treatment as mentioned above. The work W usable for practicing the third embodiment embodiment of the present invention may be a work which is preliminarily subjected to surface treatment, and alternatively, it may be a work which is not subjected to any kind of surface treatment. While the present invention has been described above with respect to preferred embodiments thereof, it should be noted that the present invention should not be limited only to these preferred embodiments but various change or modification may be made without departure from the scope of the present invention as defined by the appended claims.

Claims: A barrel buffing apparatus, wherein said apparatus includes a buffing medium receiving container (920) having a polishing medium (921) received therein and a work supporting arm (960), said buffing medium receiving container includes an upper end opening (922), said work supporting arm (960) can be rotated about an axis line thereof, and work (W) can be detouchably attached to the foremost end of the work supporting arm (960), wherein this supporting arm (960) consists of this foremost end part for detachably supporting a work (W) and a rear end part which is rotatably supported by a supporting bed (940) rotatably mounted at a supporting frame (911) fixed to the buffing medium receiving container (920) via a reversing plate (930), said work supporting arm can tunably be displaced from the position located substantially directly above said upper end opening within the range defined by said buffing medium receiving container along the vertical surface, and a first driving means (932) is in driving connection with a rotational shaft (931) positioned rotatably at the supporting bed (940) and fixed to the reversing plate (930), characterized in that a second driving means (952) is in driving connection with a slide plate (950) positioned slideably at the supporting bed and a rotating means (961) is fixed for rotating the supporting arm, the reversing plate is rotatably around the longitudinal axis of the rotational shaft (931) between two end positions, in the one of these end positions the work (W) is inside the buffing mediium receiving container (920) and in the other of the two end positions the work (W) ist outside the buffing medium receiving container position, and the slide plate (950) is adjustable in the direction of the supporting arm (960) and in that the supporting arm (960) is ratatable by driving connection with the rotating means to rotate the work (W) when being dipped in the buffing medium (921) contained in the buffing medium receiving container (920). Barrel buffing machine according to claim 1, characterized in that the supporting bed (940) and the receiving plate (930) are connected with one another by brakkets (941), an inclination between receiving plate (930) and supporting bed (940) being adjustable. Barrel buffing machine according to claim 1 or claim 2, characterized in that the buffing medium receiving container (920) is designed to exhibit a cylindrical configuration for being supported on a base board rotatably around an axis line in circumferential direction by forth driving means.

Inventors: KAWASAKI SHUJI, MATSHUSHITA AKITAKA, KAWASAKI, SHUJI, MATSHUSHITA, AKITAKA
Applicants: BBF YAMATE CORP, KAWASAKI SHUJI, MATSUSHITA AKITAKA, BBF YAMATE CORPORATION, KAWASAKI, SHUJI, MATSUSHITA, AKITAKA
Application year: 1997
Main classification: B24B29
IPC codes: B24B31, B24B29, B24D13, B24B57