JPH0687330U - Linear vibrating feeder - Google Patents

Abstract

(57) [Summary] [Purpose] When supplying coil springs one by one to the next step, surely disentangle the entangled coil springs and significantly reduce the amount of compressed air used. [Structure] A coil spring in which a large number of coil springs m are stored and vibrated and transferred from a first trough 1 to a loosening device 3 which is ejected to collide with a plurality of flat plates 34 and is discharged. m is from the transfer stand 4 to the second trough 2
The gate block 6 is provided on the downstream side of the alignment track 5 so as to pass only the coil spring m which is not entangled, and is not passed through. The coil spring m raises the gate block 6 so that it is ejected to the second trough 2 by the jet air.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a linear vibrating feeder for supplying a coil spring.

[0002]

[Prior art and its problems]

 The problem when feeding the coil springs one by one to the next process using the vibration feeder is how to prevent the coil springs from being fed while being entangled.

In order to deal with this, a bowl vibrating feeder due to torsional vibration is disclosed in, for example, Japanese Utility Model Publication No. 52-4693, in which a spiral track for transferring a coil spring attached to the inner wall of a bowl (a bowl-shaped container) is transferred. The air outlet is installed upward at the connection point between the wide portion and the narrow portion where the coil springs are aligned one by one, and the entangled coil springs protruding from the narrow portion are blown out by the jet air to be selected and blown off. The coil spring collides with a small cylindrical repulsion body provided above the narrow track of the bowl cover to loosen the entanglement and return it to the bowl. However, in this device, since the disentanglement of the entangled coil springs is caused only by the collision with the repulsion body, not all the collided objects are disentangled, or the disentangled coil springs exist in a large amount in the vibrating state. Since it is returned to the inside of the bowl, it is inefficient as a whole so that loosened items often get entangled again, and a large amount of compressed air is required to loosen the entangled coil springs. Along with that, the sound of air blown out is inevitably increased, which is not desirable from the standpoint of work environment.

Also, in Japanese Patent Publication No. 55-5445, the entangled coil spring protruding from the predetermined size on the spiral track of the bowl vibrating feeder is selected and eliminated by blowing out with jet air to remove the inside of the bowl. And collect them at the center of the bottom of the bowl with another jet of air, and blow them upward to collide with the inner wall surface of the object to be collided in the center of the bowl. Is returning to. This device also has the same drawbacks as the above-mentioned conventional example.

A vibration feeder for supplying components not by the above-mentioned torsional vibration but by linear vibration, that is, while circulating the components between a supply trough and a return trough that linearly vibrate in opposite directions, both troughs are circulated. The applicant of the present invention has proposed a linear vibrating feeder which is located near the supply trough at a position sandwiched between the two and supplies the parts to the next process by means of an alignment track fixed to the return trough (Japanese Patent Application No. 57-73780). . However, this device has no entanglement function and is for supplying general components, and is not suitable for supplying coil springs that are easily entangled.

[0006]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned problems, and surely loosens the entangled coil spring, prevents the once entangled coil spring from being entangled again, and reduces the amount of air used for entanglement. It is an object of the present invention to provide a linear vibration feeder with a coil spring that is significantly reduced.

[0007]

[Means for solving problems]

 The above object is to transfer the coil spring in the predetermined direction by the first linear vibration drive unit and the second trough for transfer the coil spring in the opposite direction to the predetermined direction by the second linear vibration drive unit. A trough and a linear alignment track integrally mounted upwardly in the second trough along the coil spring transfer direction of the second trough, wherein a large number of troughs are provided in the first trough and the second trough. The coil springs are stored, and the coil springs are aligned one by one along the alignment track and supplied to the next process. The coil springs not transferred to the alignment track are the first trough and the second trough. In a linear vibrating feeder adapted to circulate inside, a cylindrical body which is arranged substantially horizontally at the downstream end of the first trough and a predetermined inner wall portion of the cylindrical body along the axis. Multiple fixed in pitch A tangling and loosening device having a flat plate or a rod-like member and an air ejection port provided in a bottom wall portion at one end of the cylindrical body is connected and supplied to one end of the cylindrical body of the device. The coil spring is sent along the inner wall surface of the cylindrical body by the air ejected from the air ejection port, and is moved along the axis of the cylindrical body while colliding with the flat plate or the rod-shaped member. Then, the untangled coil spring discharged from the other end side of the cylindrical body is transferred onto the alignment track in the second trough, and the drive rod of the cylinder device is provided on the downstream side of the alignment track. A gate block having a notch on the lower surface, the notch having a shape corresponding to the contour of the coil spring that is attached to the lower end of the coil spring, and is provided close to the gate block. When the coil spring that is stopped here is detected by the coil spring detecting means without passing below the gate block, the cylinder device is driven to drive the drive rod. A linear vibration feeder characterized in that the coil spring is raised and the entangled coil spring is removed into the second trough by the coil spring removing means.

Further, the above object is to provide a first trough that transfers a coil spring in a predetermined direction by a first linear vibration drive unit and a coil spring in a direction opposite to the predetermined direction by a second linear vibration drive unit. A first trough and a second trough, the second trough being transported, and a linear alignment track integrally mounted upward in the second trough along a coil spring transport direction of the second trough. A large amount of coil springs are stored therein, and the coil springs are aligned one by one along the alignment track to be supplied to the next process, and the coil springs not transferred to the alignment track are the first trough, In a linear vibrating feeder adapted to circulate in a second trough, a cylindrical body which is arranged substantially horizontally at an end portion on the downstream side of the first trough and has an opening formed downward along an axis thereof. , The cylinder A plurality of flat plates or rod-like members fixed on the inner wall of the body at a predetermined pitch along the axis, and a side edge portion of the opening with a gap therebetween, and arranged so as to project upward, A tangled coil spring, which is connected to one end of the cylindrical body of the device, is connected to an entanglement device provided with a longitudinal rotary body that rotates around its axis, and is rotated by the rotation of the longitudinal rotator. While the coil spring recoils and collides with the flat plate or the rod-shaped member, the coil spring is transferred along the axial center of the cylindrical body, and the loosened coil spring discharged from the other end side of the cylindrical body is removed. A shape corresponding to the contour of the coil spring that is transferred to the alignment track in the second trough, is attached to the lower end portion of the drive rod of the cylinder device, and is transferred in alignment downstream of the alignment track. The notch on the bottom The gate block is provided, and the coil spring detecting means and the coil spring removing means are provided in the vicinity of the gate block, and the coiled spring which is stopped here without passing below the gate block detects the coil spring. When detected by the means, the cylinder device is driven to raise the drive rod, and the coil spring removing means removes the entangled coil spring into the second trough. Is achieved by a linear vibrating feeder,

[0009]

[Action]

 In the linear vibration feeder according to claim 1, a large amount is provided in the first trough that transfers the coil spring in a predetermined direction by linear vibration and in the second trough that also transfers the coil spring in the opposite direction to the first trough by linear vibration. Since the coil spring stored in the first circulation trough circulates between the first trough and the second trough, the coil spring transferred to the downstream side of the first trough is connected to the downstream end of the first trough. It is supplied to one end of the cylindrical body of the Mihogushi device. Compressed air is ejected from the air ejection port provided on the bottom wall at one end of the cylindrical body, so the coil spring supplied in the vicinity of the compressed air is pumped along the inner wall surface of the cylindrical body by the ejected air. In addition, the plate is repeatedly collided with a plurality of flat plates or rod-like members that are fixed to the inner wall of the cylindrical body at a predetermined pitch along the axis. The coil spring entangled by this collision is discharged to the other end side of the cylindrical body while being entangled, from the entanglement device. The ejected entangled coil springs are then transferred to an alignment track that is integrally mounted above in the second trough, but the untransferred coil springs fall into the second trough. . The coil spring transferred to the alignment track receives the vibration of the second trough and is transferred to the downstream side to reach the gate block. Untangled coil springs pass under the gate block as they are, but coiled coil springs from the entanglement device to the gate block, or coil springs that are transferred while being entangled pass through the gate block. I can't do it and stop. Since this stop is detected by the coil spring detecting means, the cylinder device is driven to raise the gate block, and the coil spring entangled by the coil spring removing means is removed into the second trough. The coil springs that have passed through the gate block are further transported to the downstream side on the alignment track, and are sequentially supplied to the next process one by one.

In the linear vibrating feeder according to claim 2, a first trough that moves the coil spring in a predetermined direction by linear vibration and a second trough that also moves the coil spring in a direction opposite to the first trough by linear vibration. The coil springs stored in a large amount are circulated between the first trough and the second trough, and the coil spring transferred to the downstream side of the first trough is located at the downstream end of the first trough. It is supplied to one end of the cylindrical body of the linked loosening device. Since the elongated rotor rotates around its axis in a protruding state at the lower opening of the cylinder, the supplied coil spring is recoiled at its surface and is centered on the inner wall of the cylinder. It is repeatedly collided with a plurality of flat plates or rod-shaped members that are fixed at a predetermined pitch along the line. The coil spring entangled by this collision reaches the other end of the cylindrical body while being entangled, and is discharged from the entanglement device. The ejected untangled coil springs are then transferred to the alignment track integrally mounted above in the second trough, while the untransferred coil springs fall into the second trough. The coil spring transferred to the alignment track receives the vibration of the second trough and is transferred to the downstream side to reach the gate block. Untangled coil springs pass under the gate block as they are, but coil springs that are entangled between the entanglement device and the gate block, or coil springs that are transferred while entangled pass the gate block. I can't do anything and stop. Since this stop is detected by the coil spring detecting means, the cylinder device is driven to raise the gate block, and the coil spring entangled by the coil spring removing means is removed into the second trough. The coil springs that have passed through the gate block are further transported on the alignment track to the downstream side, and are sequentially supplied to the next process one by one.

[0011]

【Example】

 Hereinafter, a linear vibrating feeder according to an embodiment of the present invention will be described with reference to the drawings.

1 to 10 are views showing a linear vibration feeder according to a first embodiment of the present invention. That is, FIG. 1 is a partially broken side view of the linear vibration feeder according to the first embodiment of the present invention, FIG. 2 is a plan view of the feeder, and FIG. 3 is the feeder of [3]-[3] in FIG. ] It is a fractured side view in the direction of the line, and Fig. 4 is a partially fractured perspective view of the same feeder. As shown in FIGS. 1 to 4, the linear vibrating feeder 100 according to the first embodiment of the present invention as a whole has a first trough in which a coil spring m is moved leftward in the drawings.1, The second trough in which the coil spring m is transferred to the right Two , The first trough1Entanglement device 3 connected to the downstream end of the entanglement, second trough for transferring the entangled coil spring mTwoAnd a transfer table 4, an aligning track 5 for aligning the transferred coil springs m and transferring to the right in the figure, a gate block 6 provided on the downstream side of the aligning track 5, and a gate block 6 A photoelectric sensor 71, which is provided in close proximity to the upstream side of the gate block 6 and detects the stop of the coil spring m for a predetermined time or more or the disconnection (empty detection) of the coil spring m, is provided in the downstream side thereof. , The photoelectric sensor 72 for detecting the overflow of the coil spring m, and the upstream side of the gate block 6 for blowing out and removing the entangled coil spring m that has stopped without passing through the gate block 6. And an air ejection port 8 provided on the bottom wall portion of the alignment track 5 in the vicinity thereof.

Hereinafter, each component will be described in detail. 1, 2, first trough 1, as shown in FIG. 4, the side walls of the second trough 2 side, an aperture 12 receiving the coil spring m cycled transferred from the second trough 2, also grain width A circular opening 13 for guiding the coil spring m to the untangling device 3 is provided on the downstream bottom wall portion. The first trough 1 is bridged linear vibration driving unit on P, details base by first trough 1 is fixed to the mounting block 11, the leaf springs 14a, 14b the mounting block 11 which has a pair of inclined It is connected to the block 15a. The base block 15a is connected to the bottom block 15b fixed on the base 17 by a pair of flexible vibration-proof springs 16a and 16b for preventing transmission of vibration to the common base 101. An electromagnet 19a, around which a coil 18 is wound, is fixed on the base block 15a and faces the movable core 19b fixed on the mounting block 11 with a space. The linear vibration drive unit P is configured as described above, but the whole is covered by the cylindrical cover p.

Further, as shown in FIGS. 2 to 6, the second trough 2 which is arranged in parallel with the first trough 1 with a slight gap therebetween circulates the coil spring m to the first trough 1 . In order to facilitate the flow of the above, the bottom part is inclined slightly downward toward the first trough 1 side, and an inclined guide surface 21 is provided at its downstream end (FIG. 4). Further, an opening 22 for feeding the coil spring m to the first trough 1 is provided on the side wall at the downstream end, and the opening 22 is aligned with the opening 12 of the first trough. As shown in FIGS. 2 and 4, the second trough 2 which is longer than the first trough 1 and which is integrally provided with the transfer table 4, the alignment track 5, the gate block 6 and the like is necessary for vibrating. Since it has a large force and energy, it is installed on the two linear vibration drive units Q and R. The linear vibration drive units Q and R are installed so that the transfer direction of the coil spring m on the second trough 2 is opposite to that of the coil spring m on the first trough 1 . Since it is similar to the linear vibration drive unit P, its description is omitted.

The arrangement of the entanglement device 3 is shown in FIGS. 1, 2 and 4, and its details are shown in FIGS. 5, 7 and 8. FIG. 5 is a partially cutaway front view in the [5]-[5] line direction in FIG. 2, FIG. 7 is a broken side view in the [7]-[7] line direction in FIG. FIG. 8 is a cutaway front view of the entanglement device 3 taken along line [8]-[8] in FIG. 7. The entanglement device 3 as a whole has an arc-shaped introduction pipe 31 aligned with the circular opening 13 of the first trough 1 , cylindrical bodies 32a and 32b arranged substantially horizontally, and an airtight upward connection to the discharge side. The discharge port is composed of a discharge pipe 33 facing downward.

As shown in FIGS. 7 and 8, a plurality of rectangular flat plates 34 are fixed to the upper wall of the cylindrical body 32a at a predetermined pitch, and this pitch is slightly larger than the height of the coil spring m. small. An air ejection nozzle 35 is attached to the bottom wall of one end of the cylindrical body 32a, and the ejection port 35a thereof is oriented substantially tangentially to the circumferential surface of the cylindrical body 32a. Is inclined to. The air jet nozzle 35 is connected to a compressed air supply pipe 36, which is connected to a solenoid valve (not shown) and is also opened and closed by a controller (not shown). Further, the cylindrical body 32b existing downstream of the cylindrical body 32a with the downwardly facing semicircular partition plate 37 interposed therebetween has a cylindrical portion and a discharge pipe provided with a peep window on the upper wall portion thereof when necessary. It consists of an upward facing semi-cylindrical part for attaching 33.

The entanglement device 3 configured as described above is bolted to the common base 101 with bolts 39 at both ends of the cylindrical bodies 32a and 32b via the supports 38a and 38b, respectively.

Below the downward discharge port of the discharge pipe 33 through which the entangled coil spring m is discharged, as shown in FIGS. 2 to 5, facing the discharge port, a second trough is provided.Two The transfer table 4 is integrally provided with the transfer table 4, and the upper surface of the transfer table 4 is also provided with the second trough. Two It has a slight downward inclination toward the alignment track 5 side integrated with (Fig. 5). The coil spring m not transferred to the alignment track 5 is transferred from the transfer table 4 to the second trough. Two The transfer table 4 is provided with anti-scattering plates 41 for preventing outward scattering of the coil spring m, which falls and recoils, on three sides of the transfer table 4 other than that direction.

As shown in FIG. 5, the alignment track 5 has bolts 51 at the same height as the surface of the transfer table 4 at the upper portion of the side wall of the second trough 2 opposite to the first trough 1. It is fixed. The alignment track 5 for aligning and transferring the coil spring m to the next process is formed in a long chute shape beyond the downstream end of the second trough 2 .

Further, as shown in FIGS. 1 to 4 and 6, the gate block 6 having the notch 61 corresponding to the contour of the coil spring m which is transferred in alignment can be raised and lowered. As described above, the air cylinder 64 is attached to the lower end of the drive rod 63, and the air cylinder 64 is integrally fixed to the downstream side of the alignment track 5 by the bolt 66 via the attachment member 65. In addition, as shown in FIGS. 6 and 9, another notch 62 of the gate block 6 and the ridge angle of the alignment track 5 are arranged so that the gate block 6 passes only the coil spring m which is not entangled when the gate block 6 is in the lowered position. The lower position of the gate block 6 is regulated by bringing it into contact with the portion 52.

Further, the alignment track lid 53 is provided with screws 54 on the alignment track 5 on the downstream side of the gate block 6 so that the coil spring m passing through the gate block 6 will not be entangled again due to vibration. It is fixedly installed at.

Further, a photoelectric sensor 71 for detecting the stop of the coil spring m for a predetermined time or more or the transfer break of the coil spring m is integrated with the alignment track 5 near the gate block 6 and on the upstream side thereof. It is provided in. The photoelectric sensor 71 includes a light emitting element 71a below the alignment track 5 and a light receiving element 71b above the alignment track 5, and the alignment track 5 is provided with an opening slit 73 for passing a light beam. When a part of the coil spring m is sandwiched by the gate block 5, or when the coil block m does not pass through the gate block 5 at all, that is, the entangled coil spring m is stopped by the gate block 5 and the photoelectric sensor 71 is opened on the opening slit 73. When the light beam is blocked for a predetermined time or longer, it is determined by a controller (not shown) that the coil spring m is stopped or entangled. Further, when the steady transfer of the coil spring m is interrupted and the light beam continues for a predetermined time or longer, this is also judged by the controller as a transfer failure.

Further, as shown in FIGS. 9 and 10, below the position where the entangled coil spring m is stopped, at the bottom of the alignment track 5, there is an air ejection port for blowing off the stopped coil spring m. 8 is provided, to which a compressed air supply pipe 81 and a solenoid valve (not shown) are connected.

It is to be noted that the determination of the stop of the coil spring m, the rise of the gate block 6, the blowing of the coil spring m by the jet of air, the stop of the jet air, and the lowering of the gate block 6 to the original position are predetermined. As a series of sequence operations performed in time, it is controlled by a controller (not shown).

The coil springs m that have passed through the gate block 5 are constantly supplied one by one to the next process. In the process, if an overflow condition, that is, an excessive supply, occurs, a photoelectric spring for detecting this is detected. A sensor 72 is integrally provided on the alignment track 5 on the downstream side of the gate block 6 close to the gate block 6. The photoelectric sensor 72 is similar to the photoelectric sensor 71 described above, and is composed of a light emitting element 72a and a light receiving element 72b. An opening slit 74 is provided in the alignment track 5 and an opening slit 75 is provided in the lid 53 of the alignment track for passing the light beam. It is provided in. When the coil spring m stops on the opening slit 74 and the light beam of the photoelectric sensor 72 is interrupted for a predetermined time or longer and it is determined that the overflow occurs, a linear vibration drive of the first trough 1 is performed by a controller (not shown). The part P is stopped, and a solenoid valve (not shown) connected to the compressed air supply pipe 36 of the entanglement device 3 is closed.

A timing gate 55 that periodically opens and closes the alignment track 5 is provided at the downstream end of the alignment track 5 so as to supply the transferred coil spring m in synchronization with the receiving cycle of the next process. Therefore, the supply of the coil spring m is controlled.

In the first embodiment, as described above, the first trough 1 , the second trough 2 and the entanglement loosening device 3 are fixed on the common base 101, but the common base 101 is further It is installed on the floor via a vibration-proof rubber 102 to prevent the vibrations of the linear vibration drive units P, Q, and R from being transmitted to the floor. Further, the periphery from the common base 101 to the vicinity of the bottoms of the first trough 1 and the second trough 2 is covered with a thin plate 103 screwed to the common base 101.

The linear vibrating feeder according to the first embodiment of the present invention is configured as described above, and its operation will be described below.

1 to 3, a large amount of coil spring m is stored in the vibration hopper H, which is not shown, and when the photoelectric sensor 71 detects that the coil spring m has been transferred, the vibration hopper H is not shown. The vibration device operates for a predetermined time, the coil spring m is cut out and supplied to the second trough 2 , and then automatically stopped. A large amount of the coil springs m on the second trough 2 are transferred to the right in FIGS. 2 to 4 by the vibrations of the linear vibration driving units Q and R, and to the first trough 1 on the bottom surface of the second trough 2 . It is guided toward the downward slope (FIGS. 5 and 6) and the guide surface 21 and transferred from the opening 22 into the first trough 1 through the opening 12 of the first trough 1 . Although the coil springs m are shown scatteredly in FIGS. 2 and 6, they are actually present at a higher density.

The coil spring m on the first trough 1 receives the vibration of the linear vibration drive P and is transferred to the left in FIGS. 1, 2 and 4, and the circular opening 31 at the downstream end of the first trough 1. Then, it is dropped in the introducing pipe 31 of the loosening and loosening device 3 aligned with it, and is guided into the cylindrical body 32a. As shown in FIGS. 5, 7 and 8, compressed air is ejected from the ejection port 35a of the air ejection nozzle 35 arranged at one end of the cylindrical body 32a, so that the compressed air is introduced in this vicinity. The coil spring m is pressure-fed along the inner circumference of the cylindrical body 32a and also to the downstream side of the cylinder 32a, and moves helically as a whole to a flat plate 34 fixed to the upper wall portion of the inner wall of the cylindrical body 31a. Upon collision, the entangled coil spring m is untangled. That is, due to the impact of the collision, the two flat plates 34 bite into one of the entangled coil springs m, and further at this time, the coil springs following the other coil spring m. The entanglement is loosened by the collision of m. Further, a plurality of flat plates 34 are present, and the coil spring m entangled by the multiple collisions with the flat plates 34 while being pressed down to the downstream side is surely untangled. When passing under the partition plate 37, the coil spring m is completely detangled, and while changing from a helical motion to a linear motion, the coil spring m rides on the ejected air flow, passes through the cylindrical body 32b, and passes through the inside of the discharge pipe 33. Ascends and falls onto the transfer table 4 integrated with the second trough 2 and is discharged.

The coil spring m discharged to the transfer table 4 is transferred to the alignment track 5 by the downwardly sloping surface (FIG. 5) of the transfer table 4 facing the alignment track 5 as shown in FIG. 5 are aligned in the groove. At this time, the coil spring m not transferred to the alignment track 5 falls to the second trough 2 . The coil spring m on the alignment track 5 receives the vibration of the second trough 2 , and is transferred to the right in FIGS. 2 to 4. The coil springs m that do not get entangled pass through the gate block 6 provided downstream (Fig. 6), but, for example, when there is a coil spring m that is slightly entangled while being vibrated and transferred on the alignment track 5. First, the coiled coil spring m cannot pass through the gate block 5 and is stopped upstream of the gate block 5 (FIG. 9). Since the stop interrupts the light beam between the light emitting element 71a and the light receiving element 71b of the photoelectric sensor 71 for a predetermined time or longer, it is determined to be stopped by a controller (not shown), and the air cylinder 64 is activated by a signal from the controller. To raise the gate block 6 and then open a solenoid valve (not shown) of the compressed air supply pipe 81 to blow out the coil spring m entangled by the air ejected from the air ejection port 8 into the second trough 2 and eliminate it. (Fig. 10). Then, in response to a signal from the controller, the ejection of air is stopped and the gate block 6 descends to return to its original state.

The coil spring m which has passed through the gate block 6 is further transported on the alignment track 5 to the downstream side. However, when the transport is in an overflow state, that is, in the state of being over-supplied and in contact with each other, a predetermined time or more is reached. , The light beam between the light emitting element 72a and the light receiving element 72b of the photoelectric sensor 72 is interrupted for a predetermined time or longer, so the controller determines this as an overflow, and the linear vibration drive unit P of the first trough 1 is detected. The electromagnetic valve (not shown) of the compressed air supply pipe 36, which stops and causes the air to be jetted to the cylindrical body 32a of the entanglement device 3, is closed. When the elimination of the overflow condition is detected, the controller restarts the operation of the first trough 1 and the entanglement loosening device 3.

The linear vibrating feeder 100 according to the first embodiment of the present invention is configured and operates as described above, and has the following advantages over the above-mentioned conventional example. That is, in any of the examples of Japanese Utility Model Publication No. 52-4693 and Japanese Patent Publication No. 55-5445, the entangled coil spring m is blown up by the jetted air to a cylindrical repulsive body or a juncture-like collided body. The unwinding efficiency is low and a large amount of compressed air is required because it is unraveled only by the collision of the coil spring m in the bowl where the coil spring m is stored in a vibrating state. As a result, the linear vibration feeder according to the first embodiment of the present invention has a predetermined loosening efficiency. The flat plate 34 is made to collide with a plurality of flat plates 34 that are fixed at a pitch of 3, and the flat plate 34 is made to be difficult to coil into the coil spring, and the flat plate 34 repeatedly collides with the flat plate 34 while being pumped to the downstream side. It is a real, even rather than be back to the second trough the coil springs m the loosened pungent coils spring is stored in a vibrational state 2 (or the first trough 1), alignment tracks from the transfer table 4 Since it leads to No. 5, the unraveled coil spring m is rarely entangled again, and the overall unraveling efficiency is extremely high. Therefore, the amount of compressed air used is remarkably small and the jetting noise of compressed air is reduced, which is preferable from the viewpoint of the working environment. Furthermore, while all the conventional examples use a bowl vibrating feeder by torsional vibration, the linear vibrating feeder according to the first embodiment of the present application uses linear vibration, so maintenance and adjustment of the vibrating mechanism is simple. It also has advantages.

11 to 13 are views showing a linear vibration feeder according to a second embodiment of the present invention. That is, FIG. 11 is a partially cutaway side view of the linear vibration feeder according to the second embodiment, FIG. 12 is a plan view of the same feeder, and FIG. 13 is a cross section of the same feeder taken along line [13]-[13] in FIG. It is a front view. The difference from the above-described first embodiment is the position where the entanglement device 3 is arranged, and the accompanying method of introducing and discharging the coil spring m and their paths. 11 to 13, the same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIGS. 11 and 12, the linear vibrating feeder 200 according to the second embodiment is provided with a circular opening 14 by squeezing the downstream side bottom surface of the first trough 1 into a funnel shape, and the tip thereof. A mesh 95 is attached to the. On the other hand, the L-shaped air blow pipe 92 is fixed by the band 91 so that the tip of the rising portion on the common base 101 is aligned below the mesh 95, and the mesh 95 and the air blow pipe 92 rise. The tip of the part is connected by a bellows 93. The air blow pipe 92 is connected to a solenoid valve (not shown).

The entanglement loosening device 3 is arranged at a position higher than the side wall of the second trough 2 by the support body 85 fixed to the common base 101 by the bolts 86 (FIG. 13), and also seen in FIG. As described above, an introduction pipe 96 for guiding the coil spring m to the entanglement device 3 is provided deep inside the first trough 1 and hanging right above the mesh 95. Further, instead of the discharge pipe 33 in the first embodiment, a guide trough 98 is connected to an opening 97 provided in a cylindrical surface on the second trough 2 side of an upward semi-cylindrical portion of the cylindrical body 32b, and the guide trough 98 is connected to the guide trough 98. The surface is provided so as to face the transfer table 4 and has a gentle downward inclination, and its discharge end is provided directly above the transfer table 4.

The linear vibrating feeder 200 according to the second embodiment of the present invention is configured as described above, and its operation will be described below.

11 and 12, the coil spring m that has reached the circular opening 14 of the first trough 1 is guided to the loosening device 3 by raising the introducing pipe 96 by the air blown from the air blow pipe 92. Since the mesh 95 is attached to the circular opening 14, the coil spring m is prevented from falling and does not fall into the air blow pipe 92. In the entanglement device 3, the entangled coil spring m is entangled in the same manner as in the first embodiment, then transferred to the downstream side, and guided through the opening 97 at the downstream portion of the cylindrical body 32b to the guide trough 98. Is discharged to the transfer table 4. The coil spring m that has reached the transfer table 4 is then supplied to the next step through the alignment track 5 and the gate block 6 as in the first embodiment.

The linear vibrating feeder 200 according to the second embodiment of the present invention is constructed and operates as described above, but the following points are different from the first embodiment described above. That is, regarding the transfer of the coil spring m to the transfer table 4, in the first embodiment the discharge pipe 33 is dropped onto the transfer table 4, whereas in the second embodiment, the rolling from the surface of the guide trough 98 is the main subject. Therefore, the transfer from the transfer table 4 to the alignment track 5 is smoother in the second embodiment. In addition, the displacement energy required to raise the coil spring m from the lowest position to the highest position in the transfer process from the introduction to the entanglement loosening device 3 to the transfer table 4 is compared with FIG. 1 and FIG. As is clear, the coil spring m is larger in the first embodiment in which the coil spring m is dropped from the discharge pipe 33 to the transfer table 4, and therefore the energy required for the jet air or the blow air is the same as that in the second embodiment. The smaller size requires less compressed air. In comparison with the conventional example, the second embodiment of the present invention ensures that the entangled coil spring m is loosened, and returns the entangled coil spring m to the place where the coil spring is stored in a vibrating state. However, since it is transferred to the alignment track 5, the unraveling efficiency is high, and the consumption of compressed air is remarkably small due to these effects, as in the case of the first embodiment. .

In the linear vibrating feeder according to the third embodiment corresponding to claim 2 of the present invention, the linear vibrating feeder according to the first embodiment or the second embodiment corresponding to claim 1 except for a part of the entanglement loosening device. Since it is composed of the same components as the vibrating feeder, their drawings and description are omitted, and only different parts will be described.

The entanglement loosening device 30 in the third embodiment is provided with a cylindrical body 32c as shown in FIGS. 14 and 15, which corresponds to the cylindrical body 32a of the entanglement loosening device in claim 1. The other parts are the same as those of the entanglement loosening device in the first or second embodiment. The cylindrical body 32c is disposed so as to project into an opening provided below the cylindrical body 32c, and the longitudinal rotating body 34 that rotates around the axis thereof and the upper wall portion of the inner wall of the cylindrical body 32c are provided along a predetermined axis. It is provided with a plurality of rod-shaped members 38 fixed at a pitch.

The tangled coil spring m introduced from the first trough 1 to one end of the cylindrical body 32c of the entanglement device 30 is rotated by the same operation as the linear vibration feeder according to the first or second embodiment. By being recoiled at the surface of the rotating body 34 that is rotating and colliding with the rod-shaped member 38, the entanglement is loosened. The coil spring m, which is entangled while repeatedly colliding with the plurality of rod-shaped members 38, is discharged to the downstream side. From this point onward, the same configuration as that of the linear vibration feeder in the first embodiment or the second embodiment and its configuration are provided. By the action, the unentangled coil spring m is supplied to the next step.

According to the entanglement loosening device of the third embodiment, the collision of the coil spring m with the flat plate or the rod-shaped member is caused by the recoil on the surface of the rotating longitudinal body 34, so that the amount of air used is further reduced. In addition to being greatly reduced, the recoil on the surface of the long rotary body 34, which has a large inertial weight, makes it possible to process a large coil spring m per piece.

Although the respective embodiments of the present invention have been described above, needless to say, the present invention is not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, in each of the above-mentioned embodiments, the transfer in the entanglement device 3 is carried out by pneumatic feeding, but the transfer is assisted by inclining the cylindrical bodies 32a and 32b slightly downward along the axis thereof. You may.

In the first embodiment, the rise of the coil spring m in the discharge pipe 33 depends on the air blown out from the air jet port 35a. However, for example, when the weight of the coil spring m is large, Another air ejection port may be provided on the bottom surface of the cylindrical body 32b, which is directly below, to assist the blowing of the coil spring m 1.

In each of the embodiments, a plurality of flat plates 34 or rod-shaped members 38 having a predetermined pitch are fixed to the upper wall portion of the inner wall of the cylindrical body 32a of the entanglement device 3 as the collided bodies of the coil spring m. It is more preferable that the inner wall does not need to be the upper wall portion and is fixed in a place where the impact energy for loosening is maximum.

In FIGS. 14 and 15, the rod-shaped member with which the entangled coil spring m collides is a U-shaped round rod, but it is true that the rod-shaped member is triangular, polygonal, ring-shaped or simply linear. It belongs to the scope of the technical idea of the device.

Further, in each of the embodiments, the photoelectric sensors 71 and 72 are used as the detection means of the coil spring m, but other known detection means, for example, an industrial TV camera using a CCD image pickup device may be used.

Further, in each of the embodiments, the air cylinder 64 is used to drive the gate block 6 to be moved up and down, but it goes without saying that this may be used as another known cylinder device, for example, a hydraulic cylinder.

Further, in each of the embodiments, the air blown out from the air jet port 8 is used to remove the entangled coil spring m, but it may be removed by adsorbing and moving it by an electromagnet.

Further, in each of the embodiments, the timing gate 55 is provided at the downstream end of the alignment track 5, but it may be omitted depending on the next step of receiving the coil spring m.

Further, in the above embodiment, the photoelectric sensor 71 is provided close to the gate block 6 and upstream thereof to detect the coiled coil spring m. It may be determined that the coil spring m has stopped at the upstream end surface of the gate block 6 because the coil spring m has not arrived for a time or longer.

Further, in each of the embodiments, the linear vibrating feeder for supplying the coil spring m has been described as an example, but a coiled component such as a light bulb filament which is easily entangled is also equivalent to the coil spring m in the present invention. I shall.

[0055]

[Effect of device]

 As described above, according to the linear vibrating feeder of the present invention, since it collides with a plurality of flat plates or rod-shaped members many times, the entangled coil spring can be disentangled reliably, and the disentangled coil spring can be aligned on the track. Since it is directly supplied to the next process through the entanglement, reentanglement is suppressed and the disentanglement efficiency is high. Therefore, the amount of compressed air used for disentanglement of the entangled coil spring is remarkably small. Therefore, the air jet noise is reduced and the work environment is greatly improved. Furthermore, since it is a feeder that uses linear vibration, it is easier to adjust and maintain than a feeder that uses torsional vibration.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a linear vibrating feeder according to a first embodiment of the present invention.

FIG. 2 is a plan view of the feeder.

FIG. 3 is a cutaway side view of the same feeder taken along line [3]-[3] in FIG. 2.

FIG. 4 is a partially cutaway perspective view of the feeder.

FIG. 5 is a partially cutaway front view of the feeder taken along line [5]-[5] in FIG. 2.

FIG. 6 is a partially cutaway front view of the same feeder taken along line [6]-[6] in FIG. 2.

FIG. 7 is a cutaway side view of the entanglement loosening device of the feeder taken along line [7]-[7] in FIG. 2.

FIG. 8 is a cutaway front view of the entanglement loosening device of the feeder taken along line [8]-[8] in FIG. 7.

FIG. 9 is a cutaway front view around the gate block of the feeder, taken along line [9]-[9] in FIG.

FIG. 10 is a view showing the rise of the gate block and the blowout elimination of the coiled spring caused by the jet air around the gate block in FIG. 9;

FIG. 11 is a partially cutaway side view of a linear vibrating feeder according to a second embodiment of the present invention.

FIG. 12 is a plan view of the feeder.

FIG. 13: [13]-in FIG. 11 of the same feeder
[13] It is a broken front view in a line direction.

FIG. 14 is a partial cross-sectional front view of the entanglement loosening device according to the third embodiment of the present invention, which partially corresponds to FIG.

15 is a fragmentary side view along the line [15]-[15] in FIG.

[Explanation of symbols]

 1 1st trough 2 2nd trough 3 Leaning loosening device 4 Transfer stand 5 Alignment track 6 Gate block 8 Air ejection port 71 Photoelectric sensor 72 Photoelectric sensor P Linear vibration drive unit Q Linear vibration drive unit R Linear vibration drive unit

Claims (2)

[Scope of utility model registration request] 1. A first trough that transfers a coil spring in a predetermined direction by a first linear vibration drive unit, and a second trough that transfers a coil spring in a direction opposite to the predetermined direction by a second linear vibration drive unit. And a linear alignment track integrally mounted upward in the second trough along the coil spring transfer direction of the second trough, wherein a large number of coils are provided in the first trough and the second trough. The springs are stored and the coil springs are aligned one by one along the alignment track so as to be supplied to the next process, and the coil springs not transferred to the alignment track are circulated in the first trough and the second trough. In the linear vibrating feeder configured as described above, a cylindrical body disposed substantially horizontally at the downstream end of the first trough, and fixed to the inner wall portion of the cylindrical body at a predetermined pitch along the axis. Multiple flat plates Or a rod-shaped member, and a entanglement coil provided with one end of the cylindrical body of the device, which is connected to an entanglement disentanglement device provided with an air ejection port provided in a bottom wall portion of the one end of the cylindrical body. The spring is transported along the axial center of the cylinder while being forcedly fed along the inner wall surface of the cylinder by the air ejected from the air ejection port and colliding with the flat plate or the rod-shaped member, The coil spring, which is untangled and is discharged from the other end of the body, is the second
A notch having a shape corresponding to the contour of the coil spring which is attached to the lower end portion of the drive rod of the cylinder device and which is transferred to the alignment track in the trough and is arranged on the downstream side of the alignment track. Is provided on the lower surface of the gate block, and a coil spring detecting means and a coil spring removing means are provided in the vicinity of the gate block. When detected by the coil spring detecting means, the cylinder device is driven to raise the driving rod, and the entangled coil spring is removed into the second trough by the coil spring removing means. A linear vibrating feeder. 2. A first trough that transfers a coil spring in a predetermined direction by a first linear vibration drive unit, and a second trough that transfers a coil spring in a direction opposite to the predetermined direction by a second linear vibration drive unit. And a linear alignment track integrally mounted upward in the second trough along the coil spring transfer direction of the second trough, wherein a large number of coils are provided in the first trough and the second trough. The springs are stored and the coil springs are aligned one by one along the alignment track so as to be supplied to the next process, and the coil springs not transferred to the alignment track are circulated in the first trough and the second trough. In the linear vibrating feeder configured as described above, a cylindrical body is provided substantially horizontally at the downstream end of the first trough, and an opening is formed downward along the axis of the cylindrical body, and an inner wall portion of the cylindrical body. To the axis A plurality of flat plates or rod-like members fixed at a predetermined pitch along with a longitudinal rotation that is arranged so as to leave a gap in the side edge portion of the opening and to project upward, and rotate around its axis. A tangled coil spring connected to one end of the cylindrical body of the device, the coiled spring being rebounded by the rotation of the longitudinal rotary body, and the flat plate Or, while colliding with the rod-shaped member, transferred along the axis of the cylindrical body,
The untangled coil spring discharged from the other end of the cylindrical body is transferred onto the alignment track in the second trough, and the lower end of the drive rod of the cylinder device is provided downstream of the alignment track. A gate block having a notch having a shape corresponding to the contour of a coil spring that is attached to a portion and is aligned and transferred, and a coil spring detecting means and a coil spring removing means are provided in the vicinity of the gate block. When the coiled spring which is stopped here and does not pass below the gate block is detected by the coil spring detecting means, the cylinder device is driven to raise the drive rod, and the coil spring is A linear vibrating feeder characterized in that the entangled coil spring is removed into the second trough by an excluding means.