JPH0663236U - Supply device for spacer ring for assembled oil ring - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure that the spacer rings for the assembled oil rings that are held in a stacked state in the magazine can be cut out in order from the bottom. [Structure] A receiving piece 6 for supporting a lowermost spacer ring S held in a magazine 4 and a cutting piece 7 for pressing the ring S downward are provided. After the cut-out piece 7 is projected as shown in (b), the receiving piece 6 is retracted as shown in (c), and the spacer ring of the upper layer is dropped together with the spacer ring S of the lowermost side. Then, the second spacer ring S'from the bottom is made to collide with the cut-out piece 7, and this ring S'is caused by this impact.
The lower ring S is separated and cut out downward. Even if the receiving piece is immovable, the spacer ring can be cut out by pushing the lowermost spacer ring to the outside of the receiving piece with the cutting piece.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a supply device for a spacer ring for an assembled oil ring that is installed in an oil ring groove of a piston.

[0002]

[Prior art]

 As shown in FIG. 12A, the assembled oil ring is composed of a spacer ring S and a pair of upper and lower side rail rings R, R. The spacer ring S is bent in a corrugated shape in the circumferential direction, and small protrusions S1 are formed at the inner diameter side ends of the upward and downward crests as shown in FIG. When assembled in the oil ring groove G of the piston P as shown in FIG. 12 (c), a mounting space for the side rail ring R is secured between the ring S and the upper and lower groove surfaces of the ring groove G, respectively. I am doing so. Conventionally, as a device for assembling such a spacer ring, according to JP-A-58-181525, a spacer ring is dropped into a diameter expansion guide having a diameter larger than the outer diameter of the piston, and the piston is fitted and set in the guide. It is known that the spacer ring is extruded from the expansion guide and assembled in the oil ring groove.In addition, in order to automatically supply the spacer ring to the expansion guide, this spacer is adjacent to the expansion guide. A magazine that holds the spacer rings in a stacked state is installed on the placed stand, and a cutout piece that moves horizontally from the position directly below the magazine to the position above the diameter expansion guide is installed on the stand so that it can be held by the magazine. The spacer ring is cut out horizontally from the lower one in order by the cutout piece and dropped into the diameter expansion guide.

[0003]

[Problems to be solved by the device]

 By the way, since the spacer ring is bent in a wave shape, if the spacer ring is laminated on the magazine, the downward crest of the spacer ring above it may bite between the upward crests of the spacer ring. When the spacer ring is cut out in the horizontal direction as described above, the spacer ring on the lowermost spacer ring to be cut out may be caught and a cutting error may occur. In view of the above points, the present invention has an object to provide a supply device capable of reliably cutting out the spacer rings in order from the lower one even if the spacer rings stacked and held in the magazine bite each other. There is.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the invention of claim 1 is to provide a magazine for holding spacer rings for a set oil ring in a laminated state, and a cutting mechanism for sequentially cutting out the spacer rings held in the magazine from the lower side. In the feeding device including the above, the cutting mechanism is provided with a receiving piece that is movable back and forth between a supporting position for supporting the lowermost spacer ring and an escape position for allowing the spacer ring to fall, and an upper side of the receiving piece. It is composed of a cutting piece that is provided to face the inner peripheral surface of the lowermost spacer ring and that can move forward and backward in the radial direction, and a drive means that alternately moves the receiving piece and the cutting piece forward and backward. Is characterized by.

According to the second aspect of the present invention, the cutting mechanism is provided with a receiving piece that extends and supports the lowermost spacer ring from the inner peripheral side of the spacer ring, and a cutting piece provided above the receiving piece. A cutting piece that faces the inner peripheral surface of the lower spacer ring and is capable of moving forward and backward in the radial direction and pushing the spacer ring outward in the radial direction so as to separate from the receiving piece, and a drive for moving the cut piece forward and backward. Composed with the source.

[0006]

[Action]

 When cutting out the spacer ring according to the first aspect of the present invention, the lowermost spacer ring supported by the receiving piece at the supporting position is expanded by the advancing action of the cutting piece outward in the radial direction, and then the receiving piece is removed. Move to the evacuation position. At this time, the lowermost spacer ring and the spacer ring laminated thereabove fall, but during the fall, the second spacer ring from the bottom comes into contact with the cut-out piece located at the radially outward advancing position and the upper layer. The spacer ring is prevented from falling further, and only the lowermost spacer ring is pushed out by the inertial force below the cutout piece and falls. Thus, even if the uppermost spacer ring bites into the lowermost spacer ring, the lowermost spacer ring is separated from the upper spacer ring and is reliably cut out downward. Next, the receiving piece is advanced to the supporting position, the cutout piece is retracted inward in the radial direction, and the spacer ring supported by the cutout piece is dropped to be supported by the receiving piece, and one cutting operation is performed. To complete.

According to the second aspect of the present invention, when the lowermost spacer ring is separated from the receiving piece due to the radially outward movement of the cutout piece, the spacer ring of the upper layer drops together with the spacer ring, When the second spacer ring collides with the cutout piece, the lowermost spacer ring is separated from the spacer ring and falls.

[0008]

【Example】

 With reference to FIGS. 1 and 2, reference numeral 1 denotes a diameter-expanding guide used for assembling the spacer ring S. A column 2 is erected on the rear side of a place where the guide 1 is set, and an upper end of the column 2 is installed. A cylindrical magazine 4 for externally holding the spacer rings S in a stacked state is attached to the support plate 3 so as to face directly above the expansion guide 1, and the spacer ring S held in the magazine 4 is cut out by a cutting mechanism 5. The lower one was cut out in order, and was fed to the expansion guide 1 by a dropping method.

The outer diameter of the magazine 4 is large enough to hold the spacer ring S in a slightly expanded state, and the rear side of the magazine 4 has a mating portion S 2 of the spacer ring S. A longitudinal guide 4a for engagement is attached in the vertical direction, and an engaging block 4b which bulges backward is provided in the middle of the guide 4a, and a pair of support blocks 3 are provided on the support plate 3 as shown in FIG. The support blocks 3a, 3a are erected, and the engaging block 4b is inserted between the support blocks 3a, 3a from above so that the magazine 4 can be detachably attached to the support plate 3.

The cutting-out mechanism 5 is provided with a pair of front and rear receiving pieces 6, 6 for supporting the lowermost spacer ring S provided at the lower end of the magazine 4, and a lowermost side provided on the upper side thereof. It is composed of a pair of left and right cutout pieces 7 for pressing the spacer ring S outward in the radial direction. To explain this in detail, the lower end of the magazine 4 is formed into a cup-shaped portion 4c that opens downward, and the holder 8 having a projection 8a on the upper surface that is fastened to the upper bottom surface of the cup-shaped portion 4c is attached to the cup 8. As shown in FIG. 4, the holder 8 is attached so as to close the open end of the plate-like portion 4c, and as shown in FIG. X is composed of a pair of links 6a, 6a pivotally supported by a boss 8b projecting in the center of the lower surface of the holder 8 Connected via a shaped link, the two receiving pieces 6, 6 are linked to an outer supporting position where the spacer ring S is supported and an inner retracting position where the ring S is allowed to fall to advance and retreat. I was made to do it. Then, a spring 6b is stretched between the ends of the both links 6a, 6a so that both the receiving pieces 6, 6 are normally urged to the supporting position, and further, the operating piece is attached to the receiving piece 6 on the rear side. 6c is attached, and a cylinder 10 having a pressing element 10a facing the operating element 6c is attached to the support column 2 so that both receiving pieces 6 and 6 are retracted to the retracted position by advancing the pressing element 10a. did.

In the cup-shaped portion 4c, as shown in FIGS. 1 and 5, a pair of left and right cut-out pieces 7, 7 are laterally moved by a spindle 11 screwed onto the upper bottom surface of the cup-shaped portion 4c. 6 is provided on the lower edge of each cutting piece 7 by projecting a claw portion 7a that bends outward as shown in FIG. 6, and the claw portion 7a is attached to the lower end of the cup-shaped portion 4c. And the holder 8 so as to face the inner peripheral surface of the lowermost spacer ring S through a gap formed between the holder 8 and the cutout piece 7 swinging around the support shaft 11 so that the claw portion 7a moves to the diameter of the holder 8. It was made to appear outside the direction. Both cut-out pieces 7, 7 are normally urged so that the claw portion 7a is projected to the outside of the holder 8 by a ridge 7c stretched between the projections 7b, 7b projecting from the front ends thereof. Further, lever portions 7d and 7d that are bent inward toward the rear side are formed on both cutout pieces 7 and 7, and an operator 7e that abuts from the rear side is provided on both lever portions 7d and 7d. On the other hand, a cylinder 12 having a pusher 12a facing the operator 7e is attached to the column 2, and when the pusher 12a is moved forward, both cutout pieces 7 and 7 are swung inward in the lateral direction. The part 7a is set to be immersed in the holder 4c. The operators 6c and 7e are projected rearward through slits formed in the lower part of the abutment guide a, so that the spacer ring S is not caught by the operators 6c and 7e.

Next, the operation of the above embodiment will be described with reference to FIG. It should be noted that the receiving piece 6 and the cut-out piece 7 do not actually overlap because they are arranged at different positions, but in order to make it easier to understand, they are drawn so as to overlap. Further, a pressing member 13 such as an annular weight is placed on the spacer ring which is stacked and held in the magazine 4 so that the spacer ring can be cut out to the last one.

Before cutting out the spacer ring, the receiving piece 6 advances to the supporting position as shown in FIG. 7A, while the cutting out piece 7 (correctly, the claw portion 7a) is depressed by the operation of the cylinder 12. In this state, the spacer ring stacked on the magazine 4 is seated on and supported by the receiving piece 6 at the lowermost ring S. In addition, the downward facing crests of the spacer ring above the spacer rings enter between the upward facing crests of the spacer ring, and the spacer rings are stacked so as to bite vertically.

When cutting out the spacer ring, first, as shown in FIG. 7 (b), the cutting-out piece 7 projects and the lowermost spacer ring S is pushed downward in the radial direction, and then shown in FIG. 7 (c). Thus, the receiving piece 6 is moved to the retracted position by the operation of the cylinder 10. According to this, the spacer ring S ', S "in the upper layer drops together with the spacer ring S on the lowermost side, and the second spacer ring S'from the bottom collides with the cut-out piece 7, and the impact at this time causes The lowermost spacer ring S is separated from the spacer ring S ′, and the spacer ring S is extruded by the inertial force below the cut-out piece 7 to fall and fall into the diameter expansion guide 1.

Next, as shown in FIG. 7D, after the receiving piece 6 is advanced to the supporting position, the cutout piece 7 is retracted as shown in FIG. 7E, and the spacer ring supported by the cutout piece 7 is inserted. S'is dropped together with the spacer ring S "thereabove so as to be supported by the receiving piece 6. By alternately moving the receiving piece 6 and the cutout piece 7 in this manner, the spacer ring is arranged in order from the lower side. Cut out downward.

In the above embodiment, the receiving piece 6 is attached to the lower end of the magazine 4 so as to be advanced and retracted between the outer supporting position and the inner retracting position. A receiving piece may be attached to the support frame so as to be moved back and forth between a support position near the magazine and a retracted position spaced apart from the magazine.

Further, if the spacer ring has a small diameter reducing force, the receiving piece may be fixed, and an embodiment thereof will be described below with reference to FIG. In this embodiment, a longitudinally extending receiving piece 6 is fixed to the lower surface of a holder 8 attached to the cup-shaped portion 4c at the lower end of the magazine 4 as shown in FIG. Is extended slightly outside the outer diameter of the magazine 4 so that the lowermost spacer ring S is supported by the receiving piece 60 at two positions on the left and right sides thereof. Further, both left and right ends of the receiving piece 6 are flush with the upper surface of the holder 8, and a pair of left and right cutting pieces 7, 7 pivotally supported on the upper surface of the holder 8 by respective supporting shafts 11 are swingably supported. The respective claw portions 7a of the above are slidably contacted with the upper surfaces of the respective end portions of the receiving piece 6 so as to be projected and retracted outward in the radial direction.

In the present embodiment, as shown in FIG. 10, a shaft portion extending forward is attached to an operator 7e that abuts against the lever portions 7d, 7d extending inwardly formed on the two cutting pieces 7, 7. A spring 7g is used to urge the spring 7g to urge the lever 7d, which comes into contact with the levers 7d and 7d from the front side, to the shaft 7a so that the lever 7d is affixed to the shaft 7f. The parts 7a, 7a are urged so that the parts 7a, 7a are sunk inward, and both pieces are cut out by pushing the operating element 7e forward, so that the claws 7a, 7a are removed. The both ends of the receiving piece 6 are projected to a position slightly outside of the allowance. The manipulator 7e penetrates a mating guide 4a attached to the rear side of the magazine 4 and projects rearward. In this case, a pusher 12a having a driving cylinder 12 for a cutting piece connected thereto is attached to the manipulator 7e. Although they may be arranged so as to face each other, in the present embodiment, as shown in FIG. 9, a guide block 4d protruding rearward is attached to the abutment guide 4a, and an annular piece 7h is externally inserted to this, and the annular piece 7h is attached. The operating element 7e is connected to the lower side of the rod 7i, the rod 7i extending rearward is connected to the upper side of the annular piece 7h, and the rod 7i is urged rearward by the spring 7j. Is arranged so as to face the rod 7i, and the operator 7e is pushed forward through the rod 7i and the annular piece 7h when the pusher 12a is moved forward.

Next, the operation of the above embodiment will be described with reference to FIG. When cutting out the spacer ring, first, the cylinder 12 is actuated so that the cutting-out piece 7 (accurately, the claw portion 7a) is projected outwardly. The lowermost spacer ring S, which is supported as shown, is pushed out of the receiving piece 6, and the spacer rings S ', S "in the upper layer drop together with the spacer ring S, and the second spacer ring from the bottom is dropped. 11 (b) collides with the cutout piece 7. At this time, the spacer ring S'on the lowermost side is separated from the spacer ring S'and the spacer ring S is cut out by inertial force. It drops from the piece 7, passes through the receiving piece 6, and is dropped into the diameter-expansion guide 1. Next, as shown in Fig. 11 (c), the cutout piece 7 is retracted inward and supported by the cutout piece 7. The spacer ring S ' It dropped with spacer ring S "is supported by the receiving piece 6, thereby completing the one cut work.

[0020]

[Effect of device]

 As is clear from the above description, according to the present invention, even if the spacer rings that are stacked and held in the magazine are bitten each other, the spacer rings can be reliably cut out in order from the lower one, and reliability is improved. A high feeding device can be obtained.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of the proposed device.

FIG. 2 is a side view taken along the line II-II of FIG.

FIG. 3 is a plan view of the device of FIG.

FIG. 4 is a bottom view of the magazine as seen from arrow IV in FIG.

FIG. 5 is a plan view taken along line VV of FIG.

FIG. 6 is a perspective view of a cutout piece.

FIG. 7 is a process chart showing the operation of the first embodiment.

FIG. 8 is a front view of a second embodiment of the device of the present invention.

9 is a side view taken along the line IX-IX of FIG.

FIG. 10 is a plan view taken along the line XX of FIG.

FIG. 11 is a process drawing showing the operation of the second embodiment.

FIG. 12A is an exploded perspective view of a pair of oil rings,
(B) is a partial enlarged perspective view of the spacer ring, (c) is a sectional view showing the assembled state of the assembled oil ring.

[Explanation of symbols]

S Spacer ring 4 Magazine 5 Cutting mechanism 6 Receiving piece 7 Cutting piece 10, 12 Cylinder (driving means)

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Naofumi Nagata 1-10-1 Shin-Sayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A cutting device, comprising: a magazine that holds spacer rings for a pair of oil rings in a stacked state; and a cutting mechanism that cuts out the spacer rings held by the magazine in order from the lower side. A receiving piece that can move back and forth between a support position that supports the lowermost spacer ring and an escape position that allows the spacer ring to fall.
A cutting piece which is provided on the upper side of the receiving piece and which is capable of advancing and retreating radially outwardly facing the inner peripheral surface of the lowermost spacer ring; A spacer ring supply device for an assembled oil ring, characterized in that 2. A cutting device, comprising: a magazine that holds spacer rings for a pair of oil rings in a stacked state; and a cutting mechanism that sequentially cuts out the spacer rings held in the magazine from the lower side. A receiving piece that extends and supports the lowermost spacer ring from the inner peripheral side of the spacer ring, and is provided above the receiving piece.
A cutout piece that faces the inner peripheral surface of the lowermost spacer ring and is capable of moving forward and backward in the radial direction and pushing the spacer ring outward in the radial direction so as to separate from the receiving piece, and moves the cutout piece forward and backward A device for supplying a spacer ring for an assembled oil ring, which is configured by a drive source.