KR100474805B1 - Continuous riveter - Google Patents

Abstract

Even if the elastic ring for fixing the rivet is eliminated, the rivet can be fixed, and the rivet spacing of the rivet fixing body can be reduced, thereby providing a continuous riveter that can accommodate a plurality of rivets even in a small storage case.

A nose case in which a cylinder is inserted freely in a cylinder and fixed to a cylinder protruding out of the cylinder in a downward direction, and a jaw case in which a conventional jaw case is fixed to the cylinder and slides freely in the cylinder. With a piston,

In the jaw case, a hole is drilled at the tip, and a tapered surface is formed in the tip inner surface of the jaw case, the diameter of which is reduced toward the tip, and is located on the tapered surface of the jaw case. A pair of jaws, which are forced downward by means of the slide, is inserted freely into the slide, and grips and opens the central axis of the blind rivet inserted into the lower end of the cylinder directly from the outside or through the nosepiece.

A blind rivet cut at the time of caulking by installing a vacuum ejector connected to a central shaft recovery pipe at an upper end of the jaw case, communicating with the central shaft storage case or cylinder, and acting on the central shaft recovery pipe. At the same time, it sucks and discharges the central axis through the central axis recovery pipe, and at the same time, it always acts during use to fix the blind rivet inserted into the jaw portion of the jaw case from the nose piston cylinder tip by the suction force of the vacuum ejector. .

Description

Continuous riveter}

The present invention relates to a continuous riveter capable of continuously hitting blind rivets (hereinafter referred to as rivets) for caulking sheet metal or the like.

Conventionally, the continuous riser shown in FIGS. 10-25 is proposed by this inventor. The continuous riveter is composed of a main body D, a drive unit E, a rivet supply unit F, a valve unit G, and the like, and FIGS. 10 and 11 show a state where the push button of the trigger valve is released. 17 shows the state in which the push button of the trigger valve was pressed.

The drive part E is a small diameter oil cylinder 1 branched laterally from the main body D, and the large diameter air cylinder 3 which drives the oil piston 2 of this oil cylinder 1 is carried out. Have.

The piston 7 embedded in the air cylinder 3 is integrally formed with the oil piston 2 as the piston rod.

The oil cylinder (1) is a chuck cylinder through a hole (18) leading to an oil chamber (16), which is a space formed between the jaw case piston (20) and the nose piston (28) in the chuck cylinder (8). Communicating with (8).

P2 is the second port of the piston front chamber 4 of the air cylinder (3), the vacuum ejector 12 and the air chamber 15 between the nose piston 28 and the rod cover (17) Air is supplied to FIG. 14, respectively, and is connected to the port f (FIG. 11) which is the other direction of the exit side of the operation valve 53. As shown in FIG.

P1 is a first port, which supplies compressed air to the rear chamber 5 (Fig. 12), which is a position behind the piston of the air cylinder 3, and is one direction toward the outlet of the operation valve 53 to be described later. It communicates with the port e.

P3 is a third port and supplies compressed air of the rear chamber 5 of the air cylinder 3 to the pilot air circuit Y of the operation valve 53 at the forward position of the piston 7 (FIG. 12). do.

At the lower end of the air cylinder 3, the storage case 47 of the rivet supply part F is stopped by the pin 27.

The main body D has a central axis storage case in which the chuck cylinder 8 is integrally formed at a right angle to the oil cylinder 1, and a central axis R1 in which the blind rivet R is cut is stored in the upper portion thereof. (9) is attached, and the rivet supply part F is attached to the lower outer side.

At the upper end of the central axis storage case 9, a vacuum ejector 12 for vacuuming the inside of the central axis storage case 9 is provided.

A rod cover 17 is installed at a lower end of the chuck cylinder 8, and a jaw case piston 20 is embedded therein, which is a main piston having an open top, and thus an upper air chamber. (14) and the lower oil chamber (16) are attached in a divided state.

The lower part of the jaw case piston 20 is a conventional jaw case 21, which is fixed to the lower end of the main piston, and has a tapered surface 22 formed on the inner surface of the front end of the jaw case 21 with a diameter as small as the front end thereof. A pair of jaws 25 are slidably fitted to the tapered surface 22.

And each jaw 25 is urged downward through the jaw pusher 24 of the pointed shape by the spring 23 accommodated in the jaw case 21.

The central shaft recovery pipe 13 is inserted into the jaw case 21, and the upper portion thereof is fitted therein while passing through the bottom plate of the central shaft storage case 9.

A nose piston 28 is disposed in the downward direction of the jaw case piston 20 to divide the upper oil chamber 16 and the lower air chamber 15, and at the bottom of the nose piston 28, respectively. The cylinder 29 formed in the slide member is inserted into the rod cover 17 at the lower end of the chuck cylinder 8 so as to slide freely through the cylinder 8, and the nose piece 32 is mounted at the lower end of the cylinder 29. It is.

10, 14, 15, and 16, the tip of the jaw case 21 is formed in a V-shape from the lower wall 30 in the lower wall 30 (FIG. 19) of the cylinder 29. The tip of the jaw 25 is in contact with the protruding nose piece 32, respectively.

The nosepiece 32 is provided with a hole through which the central axis R1 of the rivet R penetrates, and an elastic ring 33 (FIG. 19, FIG. 23) having elasticity is installed in the front end thereof. It is comprised so that (R1) may slide freely by elasticity, and the inserted rivet R does not fall during operation.

The side wall of the chuck cylinder 8 is provided with a conduit 19 communicating with the lower air chamber 15 and the vacuum ejector 12 at the upper end thereof, and in the middle thereof, communicating with the second port P2.

10, 12, 14-16, and 18, the rivet supply part F is a storage case of the tape air cylinder 37, the guide plate 43, and the rivet fixing body T ( 47).

In the tape air cylinder 37, as shown in FIG. 18, as shown in FIG. 18, a tape piston 39, which is urged in the direction of return by the spring 38, is accommodated, and at the same time, the tape piston 39 includes the tape. The transfer jaw 41 fixed to the shaft 40 of the piston 39 is provided.

The guide plate 43 has a 'co'-shaped cross section in accordance with the rivet fixing body T so as to guide the rivet fixing body T, and a long hole 44 is opened in the vertical plane thereof. The conveying jaw 41 protrudes from the long hole 44 so as to reciprocate freely. Moreover, as shown in FIG. 18, the spring plate 46 which guides by pressing the vertical part of the rivet fixing body T is provided in the vertical surface of the guide plate 43. As shown in FIG.

As shown in Fig. 24, the blind rivet fixing body T (hereinafter, referred to as a rivet fixing body) is formed of a long body having a 'co' shape in cross section made of synthetic resin or paper, and is vertical. A pair of rectangular upper and lower upper tabs T1 and lower tabs T2 are disposed at intervals T6 at regular intervals at the upper and lower ends of the portion T3. The transfer hole T4 is drilled in the vertical portion T3, and the through holes T5 are installed in the upper and lower tabs T1 and T2, and the rivet R is formed through the through holes of the upper and lower tabs T1 and T2. It is inserted in the lower direction of the lower tab T2 to T5, and the head part R3 is attached in contact with the upper surface of the lower tab T2.

Such rivet fixing body T is wound around the storage case 47 and is sent out from the tip side via the guide plate 43. This delivery is performed by the conveying jaw 41 being fitted into the conveying hole T4 of the rivet fixing body T and reciprocating by the tape piston 39 of the tape air cylinder 37.

11, 13 and 17 are shown in FIG. 11, 53 is an operation valve, and is installed in the position shown by the dashed line of the air cylinder 3, is a 2-position pilot selector valve, 49 is a trigger It is provided in the position shown by the dashed line of the inner side where the oil cylinder 1 and the chuck cylinder 8 cross | intersect with a valve, and the push button 51 is pressed or released.

In the figure, 50 denotes a compressed air source such as a compressor, h and o are open to the atmosphere, and outlet ports e and f of the operation valve 53 are the first and second ports P1, respectively. , P2, and the third port P3 communicate with the pilot air circuit Y, respectively.

In addition, the outlet port m of the trigger valve 49 communicates with the pilot circuit X of the operation valve 53 and the fourth port P4 at the upper end of the chuck cylinder 8, and the port n is It communicates with the inlet port g of the operation valve 53.

Furthermore, a fifth port P5 is provided in the rod cover 17, and the air chamber 15 communicates with the port k of the tape air cylinder 37 through the fifth port P5. When the nose piece 28 rises to the top dead center (FIG. 16), the compressed air in the air chamber 14 is supplied to the tape air cylinder 37 through the groove 31 in the lower portion of the cylinder 29 ( 17).

The conventional continuous riser operates as follows.

Usually, when the rivet fixing body T is wound around the storage case 47 of the continuous riveter and is not cocked, it is in the state of FIGS. 10 and 11, and the push button 51 (trigger) ) Is released, and the rivet R is elastically fixed to the nose piece 32 by the elastic ring 33 so as not to fall out downward.

As shown in FIG. 12, when the rivet body R2 of the rivet R is inserted into the hole of the sheet metal 48, and the push button 51 is pressed, the trigger valve 49 moves as shown in FIG. Compressed air port ( ) And the port ( ), The first port (P1) flows into the rear chamber (5) of the air cylinder (3), and the piston (7) moves forward, so that the oil piston (2) also moves forward, the oil chamber (6) ) Oil flows into the oil chamber 16 of the chuck cylinder 8, so that the jaw case piston 20 is pushed up a predetermined distance.

Thus, the jaw case 21 rises.

In this case, since the pair of jaws 25 are urged downward by the springs 23 through the jaw pushers 24, the jaws 25 are brought into close contact with the nosepiece 32 and spaced apart from the jaw case ( The tapered surface 22 of 21 is moved downward while sliding, and at the same time, the tapered surface 22 approaches each other and ascends while holding the central axis R1 of the rivet R. FIG. As the center axis R1 is raised, the rivet R is caulked, and then the center axis R1 is cut because the rivet main body R3 is stopped at the tip of the nosepiece 32.

In this case, the air chamber 15 and the front chamber 4 of the air cylinder 3 are connected to the port of the operation valve 53 from the second port P2. Since it is open | released to air | atmosphere through (), the nose piston 28 presses down and only the jaw case piston 20 raises.

When the piston 7 advances as described above, the compressed air of the rear chamber 5 is supplied to the pilot air circuit Y through the third port P3, and the operation valve 53 is advanced to advance the state of FIG. Compressed air from the compressed air source 50 Is supplied to the second port P2, and the compressed air of the rear chamber 5 of the air cylinder 3 is ), And the compressed air of the pilot air circuit (X) and the compressed air of the air chamber (14) Are released into the atmosphere.

Therefore, as shown in FIGS. 14-16, the jaw case piston 20 and the nose piston 28 raise to top dead center.

14 shows that the oil piston 2 returns (of course, the piston 7 also returns), the nose piston 28 rises and returns to the position approaching the main piston, and is compressed by the vacuum ejector 12. Since air is sucked in, the vacuum in the central axis storage case 9 is started. Further, the nose piston 28 is raised relative to the jaw case piston 20, the lower wall 30 of the cylinder 29 is in close contact with the bottom of the jaw case 21, and the top of the nose piece 32 is at the same time. Since the tip of 25 is pushed up, the jaw 25 is in a released state.

15 shows the way in which the jaw case piston 20 and the nose piston 28 are raised, and the central axis R1 is sucked into the central axis storage case 9 through the central axis recovery pipe 13. The state is shown.

Fig. 16 shows a state where the jaw case piston 20 and the nose piston 28 are together at the top dead center, where compressed air is discharged from the fifth port P5 (the port of the tape air cylinder 37). Since it is supplied to K), the tape piston 39 moves forward, the transfer jaw 41 moves forward along the long hole 44, and the transfer jaw 41 is fitted into the transfer hole T4 of the rivet fixing body T. The silver rivet holder T is pulled out of the storage case 47 and shifted by one pitch along the guide plate 43, so that the tip of the central axis R1 is set on the axis center of the nosepiece 32 downward.

Subsequently, when the push button 51 is released, the valve portion G is in the state shown in FIG. 11, and the trigger valve 49 returns to a position by the force of the spring 52, so that the compressed air source ( The compressed air of 50 is supplied to the pilot air circuit X of the operation valve 53 through the port m, so that the operation valve 53 also retreats. At this time, the compressed air of the pilot air circuit (Y) Via port (f) from h) into the atmosphere.

Compressed air is a port (s) of the trigger valve 49 as the position of the valve. m) is supplied from the fourth port P4 to the air chamber 14, and the compressed air of the air chamber 15 is connected to the port P2. f h) and are released into the atmosphere, so that both the jaw case piston 20 and the nose piston 28 fall to the bottom dead center, so that the rivet R in the jaw 25 opened through the nosepiece 32 at this time While the central axis R1 of is fixed, the tip of the nose piece 32 is bent downward by bending the upper and lower tabs T1 and T2 of the rivet fixing body T downward. The lowering of the nose piece 32 will be described in detail with reference to FIGS. 19 to 22.

Since the supply of compressed air to the tape air cylinder 37 is stopped and the compressed air of the tape air cylinder 37 is released when the nose piece 32 is lowered, the tape piston 39 is operated by the action of the spring 38. Although the retractor T retreats to its original position, since the rivet fixture T stops the reverse movement by the reverse stop 45, the transfer jaw 41 is the transfer hole T4 while the rivet fixture T is stopped. Move forward 1 pitch away from the gap, and fit in the transfer hole T4 immediately before.

At this time, since the rivet fixing body T is elastically pressed by the guide plate 43 by the spring plate 46 for guide (prevention of positional deviation), the transfer jaw 41 is reliably without shifting the position. Is fitted on.

The caulking preparation following the rivet T is completed with the above.

The subsequent operation is the same as the operation description described above, and the rivet R can be continuously caulked by repeating the above operation.

19 to 22 show a state in which the nosepiece 32 is lowered, FIG. 19 shows a state in which one rivet R is transferred, and the head portion R3 of the rivet main body R2 is a lower tab ( It is located inside of T2).

FIG. 20 illustrates a state in which the central axis R1 is inserted into the nose piece 32 and the tip of the nose piece 32 is bent by the upper tab T1.

21 shows that the nosepiece 32 is further lowered so that the upper tab T1 is completely curved, the central axis R1 is inserted through the nosepiece 32 and fitted with a play in the jaw 25. At the same time, the head portion R3 of the rivet body R2 in contact with the tip of the nose piece 32 is bent slightly by bending the lower tab T2, and the base end of the lower tab T2 is guided. Since it is supported by the plate 43, the rivet R overcomes the resistance of the elastic ring 33 by the resistance required for the guide plate 43 and the head R3 to bend the lower tab T2. It is completely inserted into the nosepiece 32 up to the head R3.

FIG. 22 illustrates a state in which the rivet R is completely inserted into the nosepiece 32 and lowered to the bottom dead center. In this state, the bottom tab T2 is also completely curved.

By the way, in the conventional continuous riveter, the elastic ring which slidably and elastically fixes the center axis R1 of the rivet R to the rivet insertion hole 32a (refer FIG. 23) of the nose piece 32 is slidable. 33 is equipped. This is to prevent this, even if the rivet (R) is inserted into the nosepiece 32 for the first coking, because the rivet (R) is inserted because there is no fixing means of the rivet (R). That is, when the jaw case 21 is raised, the pair of jaws 25 are held by the pair of jaws 25 as described above, so that the jaw case 21 is not released. However, the rivet R is free at the first insertion point, and the nosepiece 32 Since the rivet R is formed with a little margin so that it can be inserted easily, it will fall out. The elastic ring 33 as a fixing means for preventing this is fixed by the elastic force of the elastic ring, and prevents the rivet (R) from coming off, and is formed of an elastic material such as rubber and synthetic resin. However, since the frequency of use of the rivet (R) is large, there is a problem that the fixing force of the elastic ring 33 is lowered, or disadvantages in which the elastic ring 33 is cut off, and in this case, the elastic ring 33 There is also a problem that a cumbersome case that must be replaced.

This invention makes it the 1st objective to provide the continuous rivet which solved such a subject.

In addition, the rivet R is attached to the rivet fixing body T, and is thus supplied to the continuous riveter. However, in the conventional continuous riveter, the distance between the rivet R in the rivet fixing body T is Since the rivet spacing does not prevent the lowering of the cylinder 29, the number of rivets (R) is limited per predetermined length to the rivet fixing body (T), so that the rivets can be accommodated in the storage case 47. There is a problem that the number of (R) is not too many.

  The present invention can reduce the rivet spacing of the rivet fixing body (T) in consideration of such a problem, and provides a continuous riveter that can accommodate a plurality of rivets (R) even with a small storage case (47). It is for the purpose.

In order to solve the above problems, the continuous riveter of claim 1 of the present invention is freely inserted into a cylinder, a nose piston having a cylinder fixed to the outside protruding out of the cylinder, and freely inserted into the cylinder. It is equipped with a jaw case piston fixed to a cylindrical jaw case,

The jaw case has a tapered surface having a hole drilled at the tip, and a tapered surface whose diameter is reduced toward the tip with respect to the hole on the inner face of the jaw case. A pair of jaws that are urged downwards through and slide freely is inserted into the lower end of the cylinder to grip and open the central axis of the blind inserted directly from the outside or through the nosepiece.

A central axis recovery pipe is connected to an upper end of the jaw case, communicates with the central axis storage case or cylinder, and installs a vacuum ejector acting on the central axis recovery pipe, so that the central axis of the blind rivet cut at the time of caulking is installed. In addition, the suction and discharge through the central axis recovery pipe, and at the same time, always acting in use to fix the blind rivet inserted into the jaw portion of the jaw case from the nose piston cylinder front end by the suction force of the vacuum ejector.

In addition, the continuous riveter of claim 2 of the present invention has a nose piston in which a cylinder is slidably inserted into a cylinder, and a cylinder is fixed to the bottom of the cylinder, and a cylinder is slidably inserted in the cylinder and moves up and down in the cylinder. The jaw case piston is fixed to the jaw case of

The jaw case has a tapered surface having a hole drilled at the tip, and a tapered surface whose diameter is reduced toward the tip with respect to the hole on the inner surface of the jaw case. A pair of jaws, which are urged downwards through, slides freely inward, and grips and opens the central axis of the blind rivet inserted into the lower end of the cylinder directly from the outside or through the nosepiece,

A central axis recovery pipe is connected to the upper end of the jaw case to communicate with the central axis storage case or cylinder, and a vacuum ejector acting on the central axis recovery pipe is installed to provide a center axis of the blind rivet cut during caulking. In the riveter, which sucks and discharges through the central axis recovery pipe and always acts during use, and fixes the blind rivet inserted into the jaw portion of the jaw case from the nose piston cylinder tip by the suction force of the vacuum ejector.

A tape for guiding the blind case and the blind rivet fixture in which the belt-shaped blind rivet holder with blind rivets is wound is wound along the guide plate, and supplying the blind rivets mounted on the blind rivet fixture one by one. A rivet supply having an air cylinder,

The guide plate protruding from the storage case of the rivet supply unit has a bent portion in which the vertical portion of the blind rivet fixing body is bent at a predetermined angle via a straight feed portion having a predetermined length,

 A pressing plate is installed to press and guide the vertical portion of the blind rivet fixture along the guide surface from the straight feed portion of the guide plate to the bent portion, and the blind rivet high is sent out straight from the tape air cylinder by a conveying jaw that linearly reciprocates. The stagnation is guided and bent from the straight feed portion to the bent portion by the pressing plate,

The cylinder of the nose piston is positioned on the central axis axis center of the blind rivet at the upper and lower tabs immediately after the blind rivet fixing body passes through the straight feed portion of the guide plate and is bent to the bent portion, and the shaft of the cylinder is centered thereon. It is characterized in that it is excreted in accordance with the center.

Furthermore, the continuous riveter of claim 3 of the present invention has a nose piston in which a cylinder is slidably inserted into the cylinder, and a cylinder is fixed to the lower portion protruding out of the cylinder, and a cylindrical shape is slidably inserted in the cylinder and moves in and out of the cylinder. The jaw case piston is fixed to the jaw case of

 A nose piece is installed at the front end of the cylinder, and an elastic ring is installed in the blind rivet insertion hole of the nose piece so that the center axis of the blind rivet is slidably elastic.

The jaw case has a tapered surface having a hole drilled at the tip, and a tapered surface whose diameter is reduced toward the tip with respect to the hole on the inner surface of the jaw case. A pair of jaws, which are urged downwards through them, are inserted freely into the slide, grasping and opening the central axis of the blind rivet inserted through the nosepiece from the outside,

A central axis recovery pipe is connected to an upper end of the jaw case, communicates with the central axis storage case or cylinder, and installs a vacuum ejector acting on the central axis recovery pipe, so that the central axis of the blind rivet cut at the time of caulking is installed. In the riveter suctioned and discharged through the central axis recovery pipe,

The blind rivet holder with the band-shaped blind rivet holder mounted thereon is guided along the guide plate and the storage case for receiving the blind rivet fixture, and the blind rivet mounted on the blind rivet fixture is supplied one by one. With a rivet supply having a tape air cylinder,

The guide plate protruding from the storage case of the rivet supply unit has a bent portion in which the vertical portion of the blind rivet fixing body is bent at a predetermined angle via a straight feed portion having a predetermined length.

A pressing plate is provided for pressing and guiding the vertical portion of the blind rivet fixture along the guide surface from the straight feed portion of the guide plate to the bent portion, and is sent out linearly by a conveying jaw that is linearly reciprocated by the tape air cylinder. The rivet fixture is guided and bent from the straight feed portion to the bent portion by the pressing plate, and is bent,

The cylinder of the nose piston is located on the axis center of the blind rivet central axis in the upper and lower tabs immediately after the blind rivet fixing body passes through the linear feed part of the guide plate and is bent to the bent portion, and the axis of the cylinder is in the center of the axis. It is characterized in that the excreted in accordance with.

(Example)

Hereinafter, embodiments of the present invention will be described in detail with the drawings. 1 is a cross-sectional view showing an embodiment of the present invention, Figure 2 is a circuit diagram of a continuous riser according to an embodiment of the present invention.

In this embodiment, in the conventional continuous riveter, the pipeline 19 to the vacuum ejector 12 is removed, and the pipeline 60 from the compressed air source 50 is shown in FIGS. 1 and 2. It is to be connected directly to the vacuum ejector 12 by the same, otherwise the same as the conventional continuous riveter, the same components are given the same reference numerals and detailed description thereof will be omitted. However, the pipeline 19 to the fourth port P4 remains the same.

Since the vacuum ejector 12 can always be operated at the time of using a continuous rivet by this structure, the nosepiece 32 and the jaw (25) of the front-end | tip of the central axis recovery pipe 13, and the cylinder 29 are made. The suction force can always be applied to the part through the central axis recovery pipe 13. Therefore, the central axis R1 of the rivet R cut | disconnected at the time of caulking can be collect | recovered by the central axis storage case 9 through the central axis collection pipe 13, and also the front end of the cylinder 29 The rivet R inserted into the nose piece 32 can also be aspirated and fixed so as not to fall off. For this reason, in this invention, the elastic ring 33 becomes unnecessary in the conventional continuous riveter, and it becomes possible to delete.

In addition, in the present invention, the central axis recovery pipe 13 may be extended so that the cylinder 10 is continued out of the lid 10. By doing in this way, the central axis R1 of the rivet R cut | disconnected at the time of caulking can be discharged | emitted outside the riveter via the central axis recovery pipe 13. Therefore, according to this example, the central axis case 9 in the cylinder 8 becomes unnecessary, and the removal work when the central axis storage case 9 becomes full in the recovered central axis R1 also becomes unnecessary, and continuous Fully automated (robotized) riveters are possible.

3 to 9 show another embodiment of the present invention, FIG. 3 is a bottom view, FIG. 4 is a view seen from the direction of the arrow AA in FIG. 3, FIG. 5 is a side view, and FIG. 6 shows a guide plate portion. It is a perspective view and it demonstrates attaching | subjecting the same code | symbol to the same component as the said prior art example.

As shown in the figure, the guide plate 43 which protrudes from the storage case 47 of the rivet supply part F passes through the straight feed part 43a of a predetermined length, A bent portion 43b in which the direction of the vertical portion T3 is bent at a predetermined angle β is provided. In the bending part 43b of this guide plate 43, the pressing plate 61 which presses and guides the vertical part T3 of the rivet fixing body T is guided from the linear feed part 43a to the bending part 43b. The end portion 61a of the side where the rivet fixing body T of the pressing plate 61 enters is tapered in a wide opening direction to facilitate the entry of the rivet fixing body T. Wide open The blind rivet fixture T sent out in a straight line by the pressing plate 61 is reliably guided and bent from the straight feed portion 43a to the bent portion 43b.

The guide plate 43 guides the rivet fixing body T. As shown in FIGS. 4 and 6, the guide wall 62 is provided, and the blind rivet fixing body T is the guide plate 43. It is intended to move without leaving. In addition, the long hole 44 through which the transfer jaw 41 reciprocates linearly is opened in the linear feed part 43a of the guide plate 43, and the tip of the transfer jaw 41 protrudes from the long hole 44. have. The transfer jaw 41 is connected to the piston 39 of the tape air cylinder 37 as shown in FIG. 3 (same as FIG. 18), and linearly reciprocates by the tape air cylinder 37. This transfer jaw 41 is fitted in the transfer hole T4 of the rivet fixing body T as shown in FIG. 7, and the rivet fixing body T is set to 1 by a straight forward movement of the feeding jaw 41. Export one by one.

7 to 9 show the use state of the guide plate 43 in the order of the process. First, in the state shown in FIG. In this manner, the rivet fixing body T enters and moves under the pressing plate 61 when being fed out one by one, and thus is bent along the bent portion 43b of the guide plate 43. At this time, since the tip 61a of the pressing plate 61 is wide open in a tapered shape, the vertical portion T3 of the rivet fixing body T always enters and guides under the pressing plate 61. And the central axis R1 of the rivet R immediately after bending as shown in FIG. 8 becomes the position which coincides with the axial center of the cylinder 29 of the nose piston 28. As shown in FIG.

Then, the continuous riveter is operated to perform "coking". At this time, since the rivet fixing body T is bent, as soon as it is bent through the straight feed part 43a as shown in FIG. A gap L is formed between the upper and lower tabs T1 and T2 of the bent portion 43b and the upper and lower tabs T1 and T2 of the straight feed portion 43a immediately before. Therefore, as shown in FIG. 9, as shown in FIG. 3, the space | interval of the rivet R approaches as close as possible conventionally, as shown in FIG. It becomes possible to make it. The upper and lower tabs T1 and T2 of the bent portion 43b do not interfere with the lowering of the cylinder 29 because the rivet R is not present after use (see FIG. 9).

As a result, the interval (pitch) of the rivet R in the rivet fixing body T can be made small, so that the number of rivets R mounted per predetermined length of the rivet fixing body T can be increased, and the storage case ( The number of rivets that can be accommodated in 47) can be made larger than before.

In addition, in this embodiment, as shown in FIG. 5, the position of the upper tab T1 and the lower tab T2 of the blind rivet fixing body T is shifted, and the rivet R is replaced with the rivet fixing body T. As shown in FIG. The angle α may be inclined instead of being perpendicular to the longitudinal direction, or may be a perpendicular structure as shown in FIG. 24 without the angle α being inclined.

According to the present invention as described in detail above, the following effects are exerted.

(1) According to the continuous riveter of the present invention, since the vacuum ejector can be always operated, suction force is always applied to the central axis recovery pipe and the nosepiece and the jaw portion of the front end of the cylinder 29 through the central axis recovery pipe. You can. Therefore, the central axis of the rivet cut at the time of caulking can be recovered to the central axis storage case through the central axis recovery pipe, and the rivet inserted into the nosepiece from the front end of the cylinder can be sucked even without the conventional elastic ring. It can be fixed so as not to fall off. Moreover, according to this invention, a nosepiece can be removed and a rivet can be inserted directly in a jaw from the front end of a cylinder.

(2) The structure can be simplified and inexpensive by making the elastic ring and the nosepiece unnecessary.

(3) According to the continuous riveter of the present invention, in the rivet fixing body, the spacing (pitch) of the rivets can be made small, so that the number of rivets that can be accommodated in the storage case is larger than that of the conventional one, and therefore, the rivets in the workplace Improved efficiency by reducing the number of replenishment of the fixture.

(4) In addition, since the length of the rivet fixing body (plastic long body) required for installing the same number is shortened, the cost becomes low.

(5) Since the pressing plate which presses and guides the vertical part of a blind rivet fixing body is provided in the bending part of a guide plate, the rivet fixing body sent out linearly is reliably bent along the bending part of a guide plate, Clearly enlarge the gap between the tabs.

1 is a cross-sectional view showing an embodiment of the present invention.

FIG. 2 is a circuit diagram showing one embodiment of the present invention and shows the whole of FIG. 1 and FIG.

3 is a bottom view showing another embodiment of the present invention.

4 is a view seen from the arrow direction A-A of FIG.

5 is a side view showing another embodiment of the present invention.

6 is a perspective view illustrating the guide plate portion.

7 is a perspective view showing a state of use of the guide plate portion.

8 is a perspective view showing a state of use of the next step of the guide plate portion.

9 is a perspective view showing a state of use of still another step of the guide plate portion.

10 is a cross-sectional view showing a conventional continuous riser, showing a state in which the push button installed in the continuous riser is released and the trigger valve and the operation valve are in a normal position.

Fig. 11 is a circuit diagram of a valve showing a conventional continuous riser, which is shown in its entirety in combination with Figs.

12 is a cross-sectional view showing a conventional continuous riser, showing a state in which only a trigger valve is changed by pressing a push button provided in the continuous riser.

FIG. 13 is a circuit diagram of a valve showing a conventional continuous riser, and the whole is shown in combination with FIG. 12 and FIG.

Fig. 14 is a sectional view showing a conventional continuous riser, which shows a state in which a trigger valve and an operation valve are switched together by pressing a push button provided in the continuous riser.

Fig. 15 is a sectional view showing a conventional continuous riser, showing a state in which the trigger valve and the operation valve are switched together by pressing a push button provided in the continuous riser.

16 is a cross-sectional view showing a conventional continuous riser, showing a state in which the trigger valve and the operation valve are switched together by pressing a push button provided in the continuous riser.

17 is a valve circuit diagram of the state of FIGS. 14 to 16.

18 is a cross sectional view of the rivet supply unit.

Fig. 19 is a front view in which a part of the rivet supply portion of the conventional continuous riveter is cut, showing the relationship between the blind rivet fixture when the nosepiece is lowered.

Fig. 20 is a front view of a portion of the conventional continuous riveter supply section cut away, showing the relationship between the blind rivet fixture when the nosepiece is lowered.

Fig. 21 is a front view of a portion of the rivet supply portion of the conventional continuous riveter, showing the relationship between the blind rivet fixture when the nosepiece is lowered.

Fig. 22 is a partially sectional front view of the rivet supply portion of the conventional continuous riveter, showing the relationship of the blind rivet fixture when the nosepiece is lowered.

Fig. 23 is a partial vertical cross sectional view of the vicinity of a nosepiece of a conventional continuous riser;

It is a perspective view which shows an example of a blind rivet fixture.

25 is a perspective view of the blind rivet.

[Description of Drawing Reference]

1 ... oil cylinder 2 ... oil piston

3 ... air cylinder 4 ... front room

5 ... rear room 6 ... lost room

7 ... piston 8 ... chuck cylinder

9 ... central storage case 12 ... vacuum ejector

13 ... center axis return pipe 14,15 ... air chamber

16 ... missing 20 ... jaw case piston

21 ... Jaw case 22 ... Taper face

23 ... spring 24 ... jaw pusher

25 ... Jaw 28 ... Nose Piston

29 ... Body 32 ... Nosepiece

37 ... tape air cylinder 38 ... spring

39 ... tape piston 40 ... shaft

41 ... Transfer Jaw 43 ... Guide Plate

44 ... long hole 46 ... spring plate

47 ... Storage Case 49 ... Trigger Valve

50 ... compressed air source 53 ... operating valve

60 ... pipeline 61 ... pressure plate

Claims (3)

delete A nose piston slidably inserted into the cylinder and fixed to a cylinder protruding out of the cylinder at a lower portion thereof, and a jaw case piston slidably inserted into the cylinder and fixed to a common jaw case which swings inside the cylinder; , In the jaw case, a hole is drilled at the tip, and a tapered surface is formed on the inner surface of the tip to reduce the diameter toward the tip with respect to the hole. The jaw pusher is positioned on the tapered surface of the jaw case. A pair of jaws, which are pushed downward and are pushed in freely, grasps and opens the central axis of the blind rivet inserted into the lower end of the cylinder directly from the outside or through the nosepiece, A central axis recovery pipe is connected to an upper end of the jaw case, and a vacuum ejector acting on the central axis recovery pipe is installed by communicating with the central axis storage case or cylinder, and the center axis of the blind rivet cut at the time of caulking is installed. In the riveter, which sucks and discharges through the central axis recovery pipe and always acts during use to fix the blind rivet inserted into the jaw portion of the jaw case from the nose piston cylinder tip by the suction force of the vacuum ejector. Guide the storage case and the blind rivet fixture to be received while the belt-shaped blind rivet fixture wound with the blind rivet is wound along the guide plate, and mount the blind rivet mounted on the blind rivet fixture. A rivet supply unit having a tape air cylinder for supplying one by one, The guide plate protruding from the storage case of the rivet supply unit has a bent portion in which the vertical portion of the blind rivet fixing body bends a predetermined angle via a straight feed portion having a predetermined length. A pressing plate for pressing and guiding the vertical portion of the blind rivet fixture along the guide surface is provided from the linear feed portion of the guide plate to the bent portion, and the blind rivet is sent out in a straight line by the conveying jaw linearly reciprocating from the tape air cylinder. The fixed body is guided and bent from the straight feed portion to the bent portion by the press plate, The cylinder of the nose piston is positioned above the shaft center of the blind rivet central axis in the upper and lower tabs immediately after the blind rivet fixing body passes through the linear feed part of the guide plate and is bent at the bent portion. Continuous riveter, characterized in that the center and the excretion. A nose piston slidably inserted into the cylinder, and having a cylinder fixed to the cylinder protruding outward from the cylinder, and a jaw case piston slidably inserted into the cylinder and secured to a cylindrical jaw case moving in and out of the cylinder. and, A nose piece is installed at the front end of the cylinder, and an elastic ring is mounted in the blind rivet insertion hole of the nose piece so that the center axis of the blind rivet is slidably fixed. The jaw case has a tapered surface having a hole drilled at the tip, and a tapered surface whose diameter is reduced toward the tip with respect to the hole on the inner surface of the jaw case. The jaw pusher is positioned on the tapered surface of the jaw case. A pair of jaws, which are urged downwards through it, slides freely inward, grasping and opening the central axis of the blind rivet inserted from the outside through the nosepiece, A central axis recovery pipe is connected to an upper end of the jaw case, and communicates to the outside of the central axis storage case or the cylinder, and installs a vacuum ejector acting on the central axis recovery pipe, and the central axis of the blind rivet cut at the time of caulking, In the riveter suctioned and discharged through the central axis recovery pipe, The blind rivet holder with a band-shaped blind rivet mounted thereon is guided along the guide plate and the storage case to be stored while the blind rivet fixture is wound. With a rivet supply having a tape air cylinder, The guide plate protruding from the storage case of the rivet supply unit has a bent portion in which the vertical portion of the blind rivet fixing body bends a predetermined angle via a straight feed portion of a predetermined length, A pressing plate for pressing and guiding the vertical portion of the blind rivet fixing body is installed along the guide surface from the linear feed portion of the guide plate to the bent portion, and the blind is sent out linearly by the conveying jaw linearly reciprocating by the tapered air cylinder. The rivet fixture is guided and bent from the straight feed portion to the bent portion by the pressing plate, The cylindrical body of the nose piston is positioned on the axial center of the central axis of the blind rivet at the upper and lower tabs immediately after the blind rivet fixing body passes through the straight feed portion of the guide plate and is bent at the bent portion. Continuous riveter characterized in that the exciter is aligned in accordance with the center of shaft.