JP2004090179A - Separating device and separation method of seal ring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely separate and supply seal rings one by one regardless of a material of the seal rings. <P>SOLUTION: A large number of seal rings 25 are set between a main shaft 19 having a main shaft spring 27 and an idle shaft 29 having an idle shaft spring 49, and the seal rings 25 are moved to the shaft tip side by rotation of the respective shafts 19 and 29. A deep groove spiral part 71 integrally rotating with the main shaft 19 is arranged on the tip of the main shaft 19. A separating roller 51 rotates according to rotation of the deep groove spiral part 71, and drops the seal rings 25 set on the main shaft 19 side one by one in a groove 73 of the deep groove spiral part 71 to be dropped toward a fin-shaped guide 79. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a seal ring separating apparatus and method for separating a number of set seal rings one by one.
[0002]
[Prior art]
Conventionally, for example, as shown in FIG. 16, a number of seal rings 5 are set between a main shaft 1 and an idle shaft 3 in a state where tension is applied, and these many seal rings 5 are rotated by rotation of the main shaft 1. There is a seal ring separation device that separates and moves one by one forward (to the left in FIG. 16) by the rotation of the separation roller 7 accompanying this (see Japanese Patent Application Laid-Open No. 10-296551).
[0003]
Here, the main shaft 1 and the idle shaft 3 are provided with coil springs 9 and 11, respectively. When the shafts 1 and 3 rotate, the seal rings are formed along the spiral shapes of the coil springs 9 and 11. 5 is sent forward.
[0004]
[Problems to be solved by the invention]
However, in the conventional seal ring separating device described above, the seal ring 5 causes the coil spring 9 due to the stickiness as shown by an arrow P in FIG. For example, when the seal rings 5 come into close contact with each other, a phenomenon in which only one seal ring 5 cannot be supplied and a plurality of seal rings 5 are supplied simultaneously occurs.
[0005]
Accordingly, it is an object of the present invention to ensure that seal rings can be separated and supplied one by one regardless of the material of the seal ring.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a plurality of set seal rings are hung between a main shaft that sequentially moves along a spiral portion provided around the main shaft by rotation, and the main shaft. An idle shaft arranged at a predetermined distance from the main shaft so that tension is applied to the transferred plurality of seal rings, and an idle shaft that is close to the main shaft in a moving direction front side of the seal ring. And a rotatable separation roller for separating the seal rings one by one, wherein a spiral around the main shaft is provided at a position corresponding to the separation roller at a front end of the main shaft. The groove depth is formed larger than the part, the tension is lower than the seal ring located in the spiral part around the main shaft, There a structure in which a deep groove spiral portion for guiding the.
[0007]
According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, one seal ring is provided between a corner of the separation roller at a rear end in a seal ring moving direction and a spiral portion around the main shaft. It has a configuration in which a clearance is provided.
[0008]
According to a third aspect of the present invention, in the configuration according to the second aspect of the present invention, the separation roller has an interval between a spiral portion around the main shaft and a spiral ring around the main shaft further behind the corner portion. The configuration is such that a small-diameter roller extending in parallel with the main shaft is connected.
[0009]
According to a fourth aspect of the present invention, in the configuration according to any one of the first to third aspects, the deep groove spiral portion is formed in a screw shape having a groove width larger than that of the spiral portion around the main shaft. The spiral portion is formed by a coil spring.
[0010]
According to a fifth aspect of the present invention, in the configuration of any one of the first to fourth aspects of the present invention, the separation roller is provided with irregularities on the surface thereof.
[0011]
According to a sixth aspect of the present invention, in the configuration according to any one of the first to fifth aspects, a roller for maintaining an interval between the shafts is provided on a front side in a moving direction of the seal ring between the main shaft and the idle shaft. It is configured to be rotatable.
[0012]
In the invention of claim 7, a number of seal rings are set in a tensioned state on the main shaft and the idle shaft arranged at a predetermined interval from each other, and the rotation of the main shaft causes the main shaft to rotate. A method of separating a seal ring, in which the seal ring moves along a helical portion provided around the seal ring, and the seal ring is separated one by one by a separation roller rotating with the main shaft at a front side in the moving direction. In the above, one seal ring is sent forward in the movement direction from between the corner on the rear end side of the separation roller in the movement direction of the seal ring and the spiral portion around the main shaft, and the sent seal ring is A shaft that receives a deep groove spiral formed with a larger groove depth than the spiral around the shaft, reduces tension, and guides forward. There as a method of separating Luling.
[0013]
In the invention according to claim 8, a large number of seal rings set with tension applied between a main shaft and an idle shaft arranged at a predetermined interval from each other are provided on the front side in the moving direction of the seal ring. In a separation device for a seal ring that separates one by one by a separation roller disposed close to a main shaft, only one of the main shaft and the idle shaft is provided with a coil-shaped member that moves the seal ring forward. It is a configuration provided.
[0014]
According to a ninth aspect of the present invention, in the configuration of the eighth aspect, the coil-shaped member has a wire diameter substantially equal to a wire diameter of the seal ring, and a pitch width of the coil-shaped member is equal to the seal diameter. The configuration is substantially equal to the wire diameter of the ring.
[0015]
According to a tenth aspect of the present invention, in the configuration of the eighth aspect, the coil-shaped member has a wire diameter substantially equal to a wire diameter of the seal ring, and a pitch width of the coil-shaped member is equal to that of the seal ring. The configuration is such that the front side in the ring moving direction is substantially equal to the wire diameter of the seal ring, and the rear side in the seal ring moving direction is set so that one seal ring can be accommodated between the wires.
[0016]
According to an eleventh aspect of the present invention, a large number of seal rings set with tension applied between a main shaft and an idle shaft arranged at a predetermined interval from each other are provided on the front side in the moving direction of the seal ring. In a seal ring separating device that separates the seal rings one by one by a separation roller disposed close to a main shaft, both the main shaft and the idle shaft are provided with a coil-shaped member that moves the seal ring forward, In each coil-shaped member, the wire diameter of the wire is substantially equal to the wire diameter of the seal ring, and the pitch width of each coil-shaped member is substantially equal to the wire diameter of the seal ring on the front side in the seal ring moving direction. The rear side in the seal ring moving direction is configured to be able to accommodate one seal ring between the wires.
[0017]
【The invention's effect】
According to the first aspect of the present invention, even if the seal ring is particularly sticky as a material, one seal ring enters the groove of the deep groove helical portion, and the tension is reduced, so that the seal rings are not sealed. Can be separated one by one without adhesion.
[0018]
According to the second aspect of the present invention, one seal ring is surely inserted through the gap between the corner of the rear end (upstream side) of the separation roller in the seal ring moving direction and the spiral portion around the main shaft. It can be moved to the deep groove spiral corresponding to the separation roller.
[0019]
According to the third aspect of the present invention, the seal ring can be aligned between the small-diameter roller and the helical portion around the main shaft. Can be sent out.
[0020]
According to the invention of claim 4, the set seal ring can be sequentially moved forward by the coil spring rotating integrally with the main shaft, and the moved seal ring has a deep groove and a groove width. By entering the large screw-shaped groove, the tension is greatly reduced, and the seal rings can be reliably separated one by one without being in close contact with each other.
[0021]
According to the fifth aspect of the present invention, by providing irregularities on the surface of the separation roller, when the seal ring is sandwiched between the separation roller and the outer peripheral edge of the spiral portion, the contact area of the separation roller with the seal ring is reduced. The seal ring can be easily removed because the frictional force is reduced as compared with the case where no unevenness is provided.
[0022]
According to the invention of claim 6, even if the set seal rings are entangled with each other or the set amount of the seal rings is increased and the main shaft and the idle shaft receive a force in a direction approaching each other, the respective seal rings are disposed between the shafts. The distance between the shafts on the front side (downstream side) in the seal ring moving direction can be maintained at a predetermined value by the provided rollers.
[0023]
According to the seventh aspect of the present invention, even if the seal ring is particularly sticky as a material, the seal ring is provided around the main shaft through the gap between the corner at the rear end of the separation roller and the spiral portion around the main shaft. Is sent to a deep groove spiral part having a groove depth larger than that of the spiral part, and by entering into the groove of the deep groove spiral part, the tension is reduced, and the seal rings are securely separated one by one without being in close contact with each other. be able to.
[0024]
According to the invention of claim 8, when the seal ring is made of a material having good slip, the rotation of the shaft on the side provided with the coil-shaped member causes the seal ring to move forward, and the side not provided with the coil-shaped member has By this movement, the seal ring is easily moved by being pulled, and the seal ring can be reliably separated.
[0025]
According to the ninth aspect of the present invention, the coil-shaped member is formed in a spiral shape with substantially no gap, and the seal rings can be aligned on the coil-shaped member one by one along the axial direction. it can.
[0026]
According to the tenth aspect of the present invention, one seal ring is housed between the wires at the rear side of the coil-shaped member in the seal ring movement direction, and moves from this state to the front side in the seal ring movement direction. Thus, the coils are aligned one by one in the axial direction on the coil-shaped member.
[0027]
According to the eleventh aspect of the present invention, one seal ring is housed between the wires at the rear side in the seal ring moving direction of each coil-shaped member of the main shaft and the idle shaft, and from this state, the seal ring moves. By moving to the front side in the direction, each coil-shaped member is aligned one by one along the axial direction.
[0028]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0029]
FIG. 1 is a front view showing the entire configuration of a seal ring separating apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a left side view of FIG. This separating device is provided with a pair of left and right bearing brackets 15 in FIG. 1 on a base plate 13, and the main shaft 19 is rotatable in a horizontal state via bearings 17 (see FIG. 5). Supported. The right end of the main shaft 19 in FIG. 1 is linked to a servomotor 23 mounted on a motor bracket 21 installed on the base plate 13.
[0030]
On the outer peripheral surface of the main shaft 19, a large number of seal rings 25, such as O-rings and cut seals, which are bundled together when rotated by the servo motor 23, are moved to the left end side in the drawing. A main shaft spring 27 composed of a coil spring, which is a coil-shaped member, is fixed.
[0031]
The main shaft spring 27 has a contact portion 27a at the left end in FIG. 1 where the wires are in close contact with each other, as shown in an enlarged view in FIG. I try to ride in a state of being aligned. That is, when the wire diameter of the main shaft spring 27 and the wire diameter of the seal ring 25 are substantially equal to each other, the contact portion 27a on the front side in the seal ring moving direction of the main shaft spring 27 has a pitch width of the main shaft spring 27. Is substantially equal to the wire diameter of the seal ring 25.
[0032]
The above-mentioned contact portion 27a forms a spiral portion around the main shaft 19.
[0033]
A right side of the close contact portion 27a in FIG. 1, that is, a rear side (downstream side) of the main shaft spring 27 in the seal ring moving direction includes a ring housing portion 27b. When the wire diameter of the main shaft spring 27 and the wire diameter of the seal ring 25 are substantially equal to each other, the ring accommodating portion 27b has a pitch width such that one seal ring 25 can be accommodated between the wires. It has been set.
[0034]
The pitch width of the ring housing portion 27b of the main shaft spring 27 on the right side in FIG. 1 is wider than that of the ring housing portion 27b.
[0035]
As is apparent from the above configuration, the pitch of the main shaft spring 27 differs depending on the close contact portion 27a, the ring housing portion 27b, and other portions. Therefore, a spiral groove may be formed on the outer peripheral surface of the main shaft 19 instead of the main shaft spring 27 as a spiral portion. However, by changing the pitch at the time of manufacturing the main shaft spring 27, rather than processing the spiral groove, It is easy and cheap to manufacture.
[0036]
In order to apply appropriate tension to the seal ring 27 bundled in a bundle set on the main shaft 19, an idle shaft 29 is provided below the main shaft 19 in a horizontal state so that the vertical position thereof can be adjusted and rotated. It is arranged as possible.
[0037]
In the idle shaft 29, the fixed shaft portion 30 on the right side in FIG. 1 is movably inserted into a long hole 15a (see FIG. 2) that is vertically above and below the bearing bracket 15, and between the pair of bearing brackets 15. Is fixed to the lower movable support block 31 located at the position.
[0038]
On the other hand, a guide plate 33 is provided upright on the base plate 13 at the right end in FIG. 2, and a guide rail 35 extending in the vertical direction is provided on the guide plate 33. On the guide rail 35, one side of the lower movable support block 31 on the right side in FIG. 2 is provided so as to be vertically movable. That is, as the lower movable support block 31 moves up and down along the guide rail 35, the idle shaft 29 also moves up and down together with the fixed shaft portion 30.
[0039]
On the base plate 13 below the center of the lower movable support block 31, a stopper 36 for regulating the downward movement of the lower movable support block 31 is provided.
[0040]
As shown in FIGS. 5 and 6A, the idle shaft 29 has a central shaft 37 inside, and the outer cylindrical portion 41 can rotate with respect to the central shaft 37 via a pair of left and right bearings 39. ing. A belt receiving portion 43 is formed on the outer periphery of the right end of the outer cylindrical portion 41 in FIG. 5, and a belt receiving portion 45 is also formed on the main shaft 19 corresponding to the belt receiving portion 43. As shown in FIG. 1, a driving belt 47 is stretched between the belt receiving portions 43 and 45 so that the rotational power of the main shaft 19 is transmitted to the idle shaft 29.
[0041]
The idle shaft 29 protrudes from the main shaft 19 on the left side in FIG. 1, and is provided with an idle shaft spring 49 composed of a coil spring as a coil member over the entire length thereof. The idle shaft pulling 49 has the same pitch width as those of the main shaft spring 27 at positions corresponding to the contact portion 27a, the ring housing portion 27b, and other portions of the main shaft spring 27, respectively. A portion of the idle shaft spring 49 protruding from the main shaft 19 on the distal end side has a wide pitch width substantially equal to other portions of the main shaft spring 27.
[0042]
Above the main shaft 19, a roller support shaft 53 provided rotatably at the tip thereof with a separation roller 51 made of fluororesin is provided horizontally and vertically movable. The right base end of the roller support shaft 53 in FIG. 1 is fixed to an upper movable support block 55, and the upper movable support block 55 can move up and down with respect to the guide rail 35 described above.
[0043]
The upper movable support block 55 and the lower movable support block 31 are connected by a pair of connection screws 57 and move up and down integrally. The upper movable support block 55 is screwed to the connection screw 57 and is fixed to the connection screw 57 by fastening a nut 59 from above.
[0044]
On the other hand, the lower movable support block 31 can move up and down with respect to the connection screw 57, and its lower movement is regulated by a nut 61 (see FIG. 2) screwed to the lower end of the connection screw 57. The lower movable support block 31 is pressed downward by a spring 64 provided between the movable support blocks 31 and 55 and a nut 63 screwed into a connection screw 57 between the movable support blocks 31 and 55. That is, when the lower movable support block 31 is pushed upward by a force greater than the elastic force of the spring 64, the lower movable support block 31 can move upward along the connection screw 57.
[0045]
A positioning plunger 65 is provided above the upper movable support block 55. The positioning plunger 65 has a fixed flange portion 65a fixed to the upper surface of the upper movable support block 55, and includes a positioning rod portion 65b on the right side in FIG. On the other hand, near the upper end of the guide plate 33, two positioning recesses 33a and 33b are formed vertically.
[0046]
The positioning rod portion 65b of the positioning plunger 65 is inserted into one of these two positioning concave portions 33a, 33b so as to be lockable. The positioning plunger 65 is provided with a lever 65c on the side opposite to the positioning rod portion 65b. When the lever 65c is operated, the positioning rod portion 65b enters one of the positioning recesses 33a, 33b, and is pulled out. Displaced.
[0047]
As shown in FIG. 6A, the portion of the roller supporting shaft 53 that supports the separation roller 51 is a roller supporting portion 53a having a small diameter, and is provided via bearings 67 at both ends of the roller supporting portion 53a. The separation roller 51 is rotatably supported.
[0048]
The separation roller 51 has a small diameter portion 51a and a large diameter portion 51b. The small-diameter portion 51a constitutes a small-diameter roller that extends substantially parallel to the main shaft 19 from a position substantially axially central to the contact portion 27a of the main shaft spring 27 to a position slightly forward of the tip end surface 19a of the main shaft 19. are doing. A gap is formed between the small diameter portion 51a and the main shaft spring 27 so that the seal ring 25 can be inserted by one seal ring, and between the corner 51c of the large diameter portion 51b and the main shaft spring 27, A gap 69 through which one seal ring 25 passes is formed. The surface of the large-diameter portion 51b is finely knurled as unevenness.
[0049]
Corresponding to the large diameter portion 51b of the separation roller 51, a screw-shaped deep groove spiral portion 71 having a larger groove width than the spiral portion around the main shaft 19, that is, the contact portion 27a, is provided at the tip of the main shaft 19. Have. The deep groove spiral portion 71 is formed to have a greater groove depth than the close contact portion 27a, and guides the seal ring 25 forward with a lower tension than the seal ring 25 located at the close contact portion 27a.
[0050]
The above-mentioned deep groove spiral portion 71 is provided with a spiral plate 71b on the outer periphery of a small-diameter shaft portion 71a, and the width of the groove 73 of the spiral plate 71a is such that the seal ring 25 has a size enough to accommodate one seal ring 25. Is slightly larger than the wire diameter. Further, the depth of the above-mentioned groove 73 is set to such an extent that two seal rings 25 are inserted, and is set to a groove depth larger than the wire diameter of the seal ring 25.
[0051]
The seal rings 25 fed one by one into the grooves 73 of the deep groove spiral portion 71 are detected by a seal ring sensor 75 at the tip end side of the deep groove spiral portion 71. As shown in FIG. 6A, the seal ring sensor 75 is attached to a pair of support arms 77a (see FIG. 3) extending below a sensor support bracket 77 provided at the tip of the roller support shaft 53.
[0052]
A fin-shaped guide 79 that guides the separated seal ring 25 to fall is detachably attached to the tip of the idle shaft 29. As shown in FIG. 1, a ring receiver 81 for receiving one seal ring 25 is installed below the fin-shaped guide 79. The ring 25 is moved to be transported to the next operation step.
[0053]
As shown in FIG. 6A, an idle shaft support portion 83 is provided at the upper end of the fin-shaped guide 79, and the support shaft 83 at the end of the center shaft 37 of the idle shaft 29 is provided in a support hole 83a of the idle shaft support portion 83. The part 85 is inserted. A fixing plunger 87 for fixing the support shaft 85 inserted into the support hole 83a is detachably attached to a lower portion of the idle shaft support 83.
[0054]
A pair of rollers 95 is rotatably provided above the idle shaft support 83 via roller support brackets 89, 91, 93. When the fin guide 79 is attached to the idle shaft 29 as shown in FIG. 1, the roller 95 contacts the lower part of the main shaft spring 27 at the tip of the main shaft 19, and rotates with the rotation of the main shaft 19. The main shaft 19 and the idle shaft 29 are maintained at a predetermined distance from each other.
[0055]
The above-described roller support bracket 93 rotatably supports the pair of rollers 95. As shown in FIG. 6B, which is a view taken in the direction of arrow B in FIG. , Is fixed by an adjusting screw 97 inserted into the elongated hole 93a, and can be adjusted corresponding to the mutual interval between the main shaft 19 and the idle shaft 29.
[0056]
Next, the operation will be described. FIG. 7A shows a state in which all of the set many seal rings have been supplied one by one. From this state, the fin-shaped guide 79 provided with the roller 95 is moved as shown in FIG. And remove it from the idle shaft 29.
[0057]
In the state of FIG. 7B, the positioning rod 65b of the positioning plunger 65 shown in FIG. 1 and FIG. 2 is released from the lower positioning hole 33b to release the lock, and as shown in FIG. The block 55 is raised together with the lower movable support block 31, and the positioning rod 65b is inserted into the upper positioning hole 33a and locked. As the upper movable support block 55 and the lower movable support block 31 rise, the roller support shaft 53 and the idle shaft 29 also rise.
[0058]
As a result, as shown in FIG. 7C, the separation roller 51 moves up together with the roller support shaft 53 and is separated from the deep groove spiral portion 71. In this state, as shown in FIG. 8A, the bundled seal ring 25 is set over the main shaft 19 and the idle shaft 29.
[0059]
After the setting, the lock of the positioning plunger 65 is released, and the upper movable support block 55 and the lower movable support block 31 are lowered. By this lowering, the roller support shaft 53 and the idle shaft 29 also lower, and as shown in FIG. 8B, the separation roller 51 approaches the deep groove spiral portion 71, and in this state, that is, the position of FIG. To lock.
[0060]
Next, the fin-shaped guide 79 is attached as shown in FIG. 8C. At this time, the distance between the tip end side of the main shaft 19 and the idle shaft 29 is reduced by the entanglement and weight of the seal ring 25 as shown in FIG. ), The special pliers 99 are used to widen the distance between the shafts 19 and 29 on the tip side.
[0061]
FIG. 10 is a view taken in the direction of the arrow D in FIG. 8B showing a state where the distance between the main shaft 19 and the idle shaft 29 is expanded, and shows a concave curved surface portion 99 a formed at the tool tip of the special pliers 99. , 99b are pressed against the main shaft spring 27 and the idle shaft spring 49, respectively. As a result, as shown in FIG. 11, the distance L between the main shaft 19 and the idle shaft 29 before the special pliers 99 are used. ₁ The same distance L after using the special pliers 99 ₂ Is equivalent to the base side of each of the shafts 19 and 29 and is generally parallel, so that the fin-shaped guide 79 having the roller 95 can be easily set.
[0062]
Next, when the servo motor 23 is driven from the state of FIG. 8C to rotate the main shaft 19 as shown in FIG. 5, the idle shaft 29 connected by the drive belt 47 also rotates, By the screw effect of the main shaft spring 27 and the idle shaft spring 49, the bundle of the seal rings 25 is displaced toward the distal end while being released.
[0063]
At this time, the roller 95 rotates with the rotation of the main shaft spring 27 while contacting the main shaft spring 27, and maintains a predetermined interval so that the main shaft 19 and the idle shaft 29 are parallel to each other. The lower movable support block 31 pressed by the spring 64 moves up and down together with the idle shaft spring 49 in conjunction with the state of the set seal ring 25.
[0064]
Here, since the idle shaft 29 is driven to rotate with respect to the drive rotation of the main shaft 19, the seal ring 25 tends to be preceded by the main shaft 19 side and delayed by the idle shaft 29 side. The individual seal rings 25 move toward the distal end while being released.
[0065]
At this time, as shown in FIG. 4, in the ring accommodating portion 27b of the main shaft spring 27, a state where the seal ring 25 enters the gap between the wires of the main shaft spring 27 and overlaps each other can be seen. Since the wires are in close contact with each other without any gap, even if the seal ring 25 is particularly sticky as a material, the seal rings 25 are aligned one by one on the outer peripheral side.
[0066]
Such a phenomenon is similarly observed on the idle shaft 29 side provided with the idle shaft spring 49, and the seal rings 25 are aligned one by one on each of the upper and lower shafts 19 and 29.
[0067]
This aligned state is reliably maintained between the small diameter portion 51a of the separation roller 51 and the gap 69 between the corner portion 51c of the large diameter portion 51b and the main shaft spring 27. Is reliably sent to the deep groove spiral portion 71.
[0068]
Even if the seal rings 25 overlap with each other and move toward the gap 69, the overlapped seal ring 25 is blocked by the right end face of the large diameter portion 51b in FIG. One seal ring 25 is reliably sent to the deep groove spiral part 71, and one seal ring 25 enters the groove 73 of the deep groove spiral part 71.
[0069]
The seal ring 25 that has entered the groove 73 of the deep groove spiral 71 is released from tension and hangs on the deep groove spiral 71, so that even if the seal ring 25 has a particularly sticky material, The pieces are sequentially sent forward in a separated state, and fall along the fin-shaped guide 79 onto the ring receiving base 81. After receiving one seal ring 25, the ring receiving base 81 moves to convey the seal ring 25 to the next operation step.
[0070]
Here, when one seal ring 25 falls from the deep groove spiral portion 71, the ring sensor 75 detects and temporarily stops the servo motor 23, and the rotation operation of the main shaft 19, that is, the transfer operation of the seal ring 25, is performed. Stop temporarily. In this stop state, when the receiving table 81 that has received the dropped seal ring 25 returns to the next step after the transfer, the servo motor 23 is driven again to restart the transfer operation of the seal ring 25.
[0071]
In this manner, the fins are dropped toward the ids 79 one by one, and all the set bundles of seal rings 25 are dropped. As described above, the fin-shaped guide 79 is removed. The above operation is repeated.
[0072]
According to the seal ring separating apparatus described above, even if the seal ring 25 is particularly sticky as a material, the seal rings 25 can be separated one by one without being in close contact with each other.
[0073]
Further, when the seal ring 25 is sandwiched between the large diameter portion 51b of the separation roller 51 and the outer periphery of the spiral plate 71b of the deep groove spiral portion 71, the surface of the large diameter portion 51b is subjected to a minute knurling process to perform large knurling. Since the contact area of the diameter portion 51b with the seal ring 25 is small, the frictional force between the two is reduced, and the seal ring 25 is easily detached.
[0074]
Further, after the seal ring 25 is set, the gap between the main shaft 19 and the idle shaft 29 is maintained at a predetermined interval by the roller 95 provided on the fin-shaped guide 79. Even if the seal ring 25 is entangled or the set amount of the seal ring 25 is increased, the interval between the main shaft 19 and the idle shaft 29 is not reduced, and the seal rings 25 can be reliably separated and supplied one by one.
[0075]
FIG. 12 shows another embodiment of the present invention. This embodiment corresponds to a case where the seal ring 25 is made of a slippery material. In this case, the main shaft spring 270 has the same shape over the entire length as the contact portion 27a of the main shaft spring 27 shown in FIG. That is, when the diameter of the main shaft spring 270 is substantially equal to the diameter of the seal ring 25, the pitch width is substantially equal to the outer diameter of the seal ring 25.
[0076]
As a result, the main shaft spring 270 is formed in a spiral shape with substantially no gap between the wires. In this case, as compared with the case where the ring accommodating portion 27b is provided as shown in FIG. 4, the seal ring 25 is located on the outer peripheral portion of the main shaft spring 270 and does not enter the gap between the wires. The forward thrust is weak, and therefore the seal rings 25 are axially aligned one by one without overlapping on the main shaft spring 270 even with a slippery material. Separation can be reliably performed.
[0077]
On the other hand, the idle shaft 29 is not provided with an idle shaft spring. For this reason, the function of feeding the seal ring 25 does not work on the idle shaft 29, and the seal ring 25 sent by the main shaft 19 is merely pulled off and advanced on the idle shaft 29 side, and the mutual overlap is avoided. Have been.
[0078]
FIG. 13 shows an example of using the ring set jig 101 when setting the seal ring 25 in the state of FIG. 7C. The ring set jig 101 includes a pair of bent members formed by bending a rectangular flat plate into a substantially right angle shape.
[0079]
As shown in FIG. 14A, the ring set jig 101 is set up on a stand 103 in a state where the concave portions of the bent pieces face each other, and the ring set jig 101 is placed in the ring set jig 101 in the upright state. The seal ring 25 stored in the bag 105 is set. At this time, the width H of the ring set jigs 101 facing each other is sufficiently smaller than the inner diameter of the seal ring 25, so that the setting operation can be facilitated.
[0080]
After the setting, as shown in FIG. 14B, the ring set jig 101 is rotated while lying down, and the seal rings 25 are aligned.
[0081]
After the alignment, as shown in FIG. 15A, the bent pieces of the ring set jig 101 are separated from each other so that the main shaft 19 and the idle shaft 29 in the state of FIG. 13 enter between the bent pieces. To
[0082]
FIG. 15B shows a state where the main shaft 19 and the idle shaft 29 are inserted between the bending pieces of the ring set jig 101. This insertion operation can be easily performed because the seal ring 25 does not contact the main shaft spring 27 and the idle shaft spring 49.
[0083]
Next, as shown in FIG. 15 (c) from the state of FIG. 15 (b), the ring set jig 101 is rotated by about 90 ° to form a gap T between the seal ring 25 and the idle shaft spring 49. Pull it out when it is formed. This pulling-out operation can be easily performed since the convex portion 101a of each bent piece comes into contact with the seal ring 25, so that the contact resistance is small.
[0084]
In the embodiment of FIG. 1, only one of the main shaft spring 27 and the idle shaft spring 29 may be provided. In the embodiment shown in FIG. 12, the idle shaft 29 may be provided with an idle shaft spring having the same shape as the main shaft spring 270. Alternatively, an idle shaft spring having the same shape as the main shaft spring 270 may be provided.
[Brief description of the drawings]
FIG. 1 is a front view showing an entire configuration of a seal ring separating apparatus according to an embodiment of the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a left side view of FIG.
FIG. 4 is an explanatory view showing an enlarged left end side in FIG. 1;
FIG. 5 is an explanatory view showing a partial cross section of the right base end side in FIG. 1;
6 (a) is an explanatory diagram showing a partial cross section of a left end side in FIG. 1, and FIG. 6 (b) is a view taken in the direction of arrow B in FIG.
FIGS. 7A and 7B are explanatory views of the operation of the seal ring separating device of FIG. 1, wherein FIG. 7A is a state in which a fin-shaped guide is attached, FIG. c) shows a state in which the separation roller is raised together with the idle shaft from the state of (b).
FIGS. 8A and 8B are explanatory views of the operation of the seal ring separating device of FIG. 1, wherein FIG. 7A shows a state in which the seal ring is set from the state of FIG. 7C, and FIG. (C) shows a state where the fin-shaped guide is attached from the state shown in (b), together with the idle shaft.
9A is an explanatory view showing a partial cross section of the right base end side in FIG. 1 in a state where a seal ring is set, and FIG. 9B is a cross-sectional view taken along the line CC of FIG. 9A. .
FIG. 10 is a view taken in the direction of arrow D in FIG.
FIG. 11 is an explanatory diagram showing a difference in the distance between the two shafts due to the push-spread operation of FIG.
FIG. 12 is an explanatory view showing another embodiment of the present invention, in which a left end side in FIG. 1 is enlarged.
13 is an operation explanatory view showing an example of using a ring set jig when setting a seal ring in the state of FIG. 7 (c).
FIGS. 14A and 14B are explanatory views of the operation by the ring set jig of FIG. 13, wherein FIG. 14A shows a state in which the seal ring is set on the ring set jig, and FIG. Show.
15A and 15B are explanatory views of the operation by the ring set jig of FIG. 13, wherein FIG. 15A shows a state in which each bent piece of the ring set jig is separated from the state of FIG. 14B, and FIG. A state where the main shaft and the idle shaft are inserted between each other, and a state where the ring set jig is pulled out from the state shown in FIG.
FIG. 16 is a front view showing a main part of a seal ring separating device according to a conventional example.
[Explanation of symbols]
19 Main shaft
25 Seal ring
27 Main shaft spring (spiral around main shaft, coiled member, coil spring)
29 idle shaft
49 Idle shaft spring (coiled member, coil spring)
51 Separation roller
51a Small diameter part (small diameter roller)
51c corner
69 Clearance for one seal ring
71 Deep groove spiral
73 grooves
95 rollers
270 Main shaft spring (coiled member)

Claims (11)

A tension is applied to a main shaft that sequentially moves a number of set seal rings along a helical portion provided around the main shaft by rotation, and the number of seal rings bridged between the main shaft and the main shaft. An idle shaft disposed at a predetermined distance from the main shaft, and a rotatable shaft disposed in front of the seal ring in the moving direction of the seal ring and adjacent to the main shaft to separate the seal rings one by one; A separation ring at a position corresponding to the separation roller at the front end of the main shaft, wherein a groove depth is formed larger than a spiral portion around the main shaft, A deep groove spiral portion which guides forward by lowering the tension than the seal ring located in the spiral portion of Seal ring of the separation device. 2. The seal according to claim 1, wherein a gap through which the seal ring passes is provided between a corner of a rear end of the separation roller in a seal ring moving direction and a spiral portion around the main shaft. Ring separation device. The separation roller further includes a small-diameter roller extending in parallel with the main shaft at a further rearward side of the corner portion while maintaining an interval where one seal ring enters between the spiral portion around the main shaft and the spiral portion. The seal ring separating device according to claim 2, wherein The said deep groove spiral part is formed in the shape of a screw with a larger groove width than the spiral part around the said main shaft, The spiral part around a main shaft is comprised by the coil spring, The Claim 1 thru | or 3 characterized by the above-mentioned. The seal ring separating device according to any one of the above. The seal ring separating device according to any one of claims 1 to 4, wherein irregularities are provided on a surface of the separation roller. The roller according to any one of claims 1 to 5, wherein a roller for maintaining an interval between the shafts is rotatably provided on a front side in a seal ring moving direction between the main shaft and the idle shaft. Separation device for seal ring. A number of seal rings are set in a tensioned state on a main shaft and an idle shaft that are arranged at a predetermined interval from each other, and the rotation of the main shaft causes a spiral portion provided around the main shaft to rotate. A sealing roller that moves along the main shaft and separates the seal rings one by one on a front side in the moving direction. One seal ring is sent forward in the movement direction from between the corner on the rear end side of the ring movement direction and the spiral portion around the main shaft, and the sent seal ring is placed closer to the spiral portion around the main shaft than the spiral portion around the main shaft. The sheet is received by a deep groove spiral portion having a large groove depth, and the tension is reduced to guide the sheet forward. Ring method of separation. A number of seal rings set with tension applied between a main shaft and an idle shaft arranged at a predetermined interval from each other are arranged close to the main shaft on the front side in the moving direction of the seal ring. In the seal ring separating device that separates the seal rings one by one by the separated roller, a coil-shaped member that moves the seal ring forward is provided on only one of the main shaft and the idle shaft. Separation device for seal ring. 9. The coil-shaped member, wherein a wire diameter of the wire is substantially equal to a wire diameter of the seal ring, and a pitch width of the coil-shaped member is substantially equal to a wire diameter of the seal ring. Sealing ring separator. In the coil-shaped member, the wire diameter of the wire is substantially equal to the wire diameter of the seal ring. 9. The seal ring separating device according to claim 8, wherein the rear side in the seal ring moving direction is set so that the one seal ring can be accommodated between wires. A number of seal rings set with tension applied between a main shaft and an idle shaft arranged at a predetermined interval from each other are arranged close to the main shaft on the front side in the moving direction of the seal ring. In the seal ring separating device that separates the seal ring one by one by the separated roller, both the main shaft and the idle shaft are provided with coil members for moving the seal ring forward, and each of the coil members is The wire diameter of the wire is substantially equal to the wire diameter of the seal ring, and the pitch width of each of the coiled members is substantially equal to the outer diameter of the seal ring in the seal ring moving direction front side, and is equal to the seal ring moving direction rear side. And a seal ring separating device, wherein one seal ring is set so as to be accommodated between wires. .

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