JPH0637223U - Coil spring entanglement device - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the amount of air consumed in a tangled coil spring and to loosen the entanglement reliably. [Structure] The cylindrical body 61 is arranged substantially horizontally, and a plurality of flat plates 81 are fixed to the upper wall portion of the inner wall of the cylindrical body 61 at a predetermined pitch along the axis, and the right end portion of the cylindrical body 61 is fixed. Is provided in the bottom wall of the cylinder body 61, the coil spring m entangled at the right end of the cylindrical body 61 is supplied, and the air is ejected from the air ejection port 77a. The coil spring is caused to make a helical motion along the inner wall surface of the cylindrical body 61, and a plurality of flat plates 81 attached to the upper wall portion are collided several times on the way to loosen the entanglement of the coil spring.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coil spring entanglement device.

[0002]

[Prior art and its problems]

 FIG. 1 is a perspective view of the coil spring m. When it is desired to supply the coil spring m to the next step in the direction of the arrow, the coils cannot be supplied one by one in this posture even if they are entangled as shown in FIG. In order to cope with this, for example, in Japanese Utility Model Publication No. 52-4693, a spiral track formed on the inner peripheral wall of the bowl of the vibrating parts feeder has a substantially rectangular shape immediately above the discharge end. A casing with a closed space is attached, and this lower wall part is used as a guide plate for letting out air, and the entangled coil spring on the track passing below this is lifted by the air blown from below. The coil spring is blown away to collide with the upper wall to loosen the entanglement, and the coil spring dropped downward is supplied to the next process.

However, with such a coil spring entanglement device, a large amount of air must be jetted from below the truck, which consumes a large amount of compressed air, and the upper wall of the casing has a large amount of air consumption. After colliding, it may be entangled again when it falls.

Further, according to the coil spring feeding device of Japanese Patent Publication No. 55-5445, a coil-impact body in the shape of a cap is provided in the center of the bowl of the vibrating part feeder, and a coiled coil spring guided below the coil impact body. Air is blown from the bottom wall of the bowl to collide with the inner wall of Jinkasa to loosen the entangled coil, but it still requires a large amount of air to be ejected and, after colliding with Jinkasa, entangles again. There were many things.

[0005]

[Problems to be solved by the device]

 The present invention has been made in view of the above problems, and loosens a coiled spring entangled by ejected air, but further reduces the consumption of compressed air and prevents the once loosened coiled spring from being entangled again. It is an object of the present invention to provide a coil spring entanglement device that can be used.

[0006]

[Means for solving problems]

 The above object is to provide a cylindrical body arranged substantially horizontally, a plurality of flat plates fixed to the upper wall portion of the inner wall of the cylindrical body at a predetermined pitch along the axis, and one end portion of the cylindrical body. An air ejection port provided in the bottom wall portion, and a entangled coil spring is supplied to one end of the cylindrical body, and air is ejected from the air ejection port to cause the coil spring to move inside the cylindrical body. While being pumped along the wall surface and being collided with the flat plate, it was transported along the axis of the cylindrical body, and the coil spring which was entangled from the other end side of the cylindrical body was discharged. Achieved by the characteristic coil spring entanglement device.

[0007]

[Action]

 The cylinder itself, which is arranged almost horizontally, forms a closed space, but air is ejected from the air ejection port provided in the bottom wall on this one end side, and the air is supplied from one end side. The coil spring is transferred along the axial center of the cylinder while being pressure-fed along the inner peripheral wall surface of the cylinder.During this transfer, the coil spring is attached to a plurality of flat plates formed on the upper wall. The space corresponding to the winding pitch is bitten in, and while being bited in, it receives a helical transfer force, so the coiled springs that are entangled with each other are efficiently disentangled, and many times during helical movement. The space of the winding pitch bites into the flat plate, and the persistent entanglement is efficiently disentangled and transferred to the other end of the cylinder. From the other end side, the coil springs that are almost completely untangled are discharged.

[0008]

【Example】

 Hereinafter, a coil spring entanglement device according to an embodiment of the present invention will be described with reference to the drawings.

3 and 4 show the entire coil spring entanglement device according to an embodiment of the present invention, the device is mainly a vibrating parts feeder 1, and a vibrating hopper V for inserting the coil spring into the vibrating part feeder 1. , A linear vibrating feeder 3 connected to the discharge end of the vibrating part feeder 1 and a loosening and loosening device 4 according to the present invention, which is arranged in the vicinity of the vibrating part feeder 1.

The vibrating parts feeder 1 is constructed in a known manner, but is provided with a bowl-shaped container (bowl) 5 in which a spiral track 6 is wound around the inner peripheral wall thereof, and the bottom part thereof is integrally formed. The movable core 7 fixed to the base plate 8 and the lower base block 8 are connected by a leaf spring 11 arranged at equal angular intervals. An electromagnet 10 around which a coil 9 is wound is fixed on the base block 8 and faces the movable core 7 with a gap. The torsional vibration drive unit is configured as described above, but the whole is covered by the cylindrical cover 12, and the whole vibration parts feeder 1 is supported on the base 16 by the vibration isolating rubber 13. There is. Further, the base 16 supports the entire vibrating parts feeder 1 on the base plate 14 by means of height adjusting screws 15 so that the height of the vibrating parts feeder 1 can be adjusted with peripheral devices.

The vibration hopper V is composed of a hopper H that stores a large amount of coil springs and an electromagnetic vibration feeder 2, and the electromagnetic vibration feeder 2 shown in the drawing is arranged at the lower end opening of the hopper H. The coil spring is fed from the hopper H by vibrating the trough 40 to supply the coil spring m to the central portion of the bowl 5 of the vibrating parts feeder 1. The trough 40 is connected to a base block 41 by a pair of front and rear leaf springs 46 and 47, and an electromagnet 45 around which a coil 44 is wound is fixed to the base block 41. The electromagnetic vibration feeder 2 is configured as described above, but it is supported on the mount 42 by the coil spring 43.

The linear vibrating feeder 3 is also configured as described above, but the coil spring supply track 17 and the alignment track 22 are respectively provided at the discharge end of the track 6 formed on the inner peripheral wall of the bowl 5. Connected and adjacent to the ends of the alignment track 22 with a gap of s, a trough 23 is arranged, which is fixed to the leaf spring mounting block 26 by means of mounting members 24, 25, which also It is connected to the base block 27 by a pair of front and rear leaf springs 28 and 29. An electromagnet 32 around which a coil 31 is wound is fixed on the base block 27 and faces the movable core 30 fixed to the leaf spring mounting block 26 with a gap. The linear vibration feeder 3 is constructed as described above, but the whole is supported on the base 34 by the vibration-proof rubber 33, and this is mounted on the column 35 via the height adjusting screw. 16 is supported.

At the end of the track 6 of the bowl 5, a notch 5b having a height slightly larger than the diameter of the coil spring m is formed at the end of the side wall 5a, and the track on the downstream side is formed. The end 6a of 6 is inclined downward toward the radially outer side of the bowl 5.

A coil spring supply track 17 is integrally provided with the bowl 5 in the radially outward direction of the notch 5b and adjacent to the notch 5b, which is connected to an alignment track 22 concentric with the bowl 5. A cutout 21 is provided at the discharge end to make this portion a narrow path. That is, the coil springs m that have reached up to this point are arranged in one row and connected to the linear vibration feeder 3 on the downstream side.

A communication passage 18 is integrally formed in the bowl 5 below the end portion 6a of the track 6, and the entangled coil spring m is guided to the entanglement loosening device 4 according to the present invention. It is configured to be

As shown in FIG. 4, the communication passage 18 communicates with an arc-shaped communication track 19 parallel to the alignment track 22. A circular opening 20 is formed in the bottom wall of the communication path 18. Through this, the entangled coil spring m is guided to the entanglement device 4.

As clearly shown in FIG. 8, the entanglement device 4 has an arc-shaped introduction guide pipe 60 aligned in the opening 20 as a whole, a cylindrical body 61 connected on the discharge side, and an air-tight seal on the discharge side. It is composed of a vertical guide pipe 69 connected thereto, a curved lead-out guide pipe 62 airtightly connected to the upper end of the vertical guide pipe 69, and a coil spring discharge port portion 63 integrally formed with the guide pipe 62.

The coil spring discharge port portion 63 is formed with a diameter larger than the diameter of the lead-out guide pipe 62, and a net 66, a sponge 65, and a thin plate 67 are attached to the opening end portion by a mounting member 64. Further, the opening 68 formed in the bottom wall portion is formed so as to face the bottom wall surface of the bowl 5 of the vibrating parts feeder 1.

As shown in FIG. 9, the cylindrical body 61 is composed of semi-cylindrical bodies 61 A and 61 B. The flange portions 70 and 71 are aligned with each other, and the bolt 73 is inserted into the bolt insertion hole 74 to wash the washer. By interposing 76, screwing and tightening the nut 75, these are integrated to form the cylindrical body 61. Further, a circular lid 92 is applied to the semi-circular flange portions 93 and 94, and is fixed to the cylindrical body 61 by bolts 73 as well. The introduction guide pipe 60 is integrally fixed to the lid 92, and the vertical guide pipe 69 is fixed to the extension 72 of the flange 71 at the other end.

A rectangular flat plate 81 is fixed to the upper wall portion of the upper half-cylindrical body 61A of the cylindrical body 61 at a predetermined pitch. In this embodiment, this pitch is slightly smaller than the height of the coil spring m. small. A partition wall 90 is formed slightly downstream of the central portion of the upper semi-cylindrical body 61A, and a viewing window 82 made of a transparent material is provided between the partition wall 90 and the end wall portion 91 of the upper semi-cylindrical body 61A. The fastener 83 is attached so as to be openable and closable.

As described above, the cylindrical body 61 is formed as a hermetically sealed structure, and the air jet pipe 77 is attached to the bottom wall portion at one end thereof, and the air jet port 77a is shown in FIG. As shown in FIG. 11, although it is substantially tangential to the circumferential surface of the cylindrical body 61, in the present embodiment, it is further inclined in the direction of the axis of the cylindrical body 61. The entanglement device 4 configured as described above is supported by the base 16 via the mounting plate 78 and the L-shaped supporting member 79, which are vertically mounted on the bottom wall surface of the cylindrical body 61, through the bolts 80. . The air jet pipe 77 is connected to a compressed air supply pipe 85, which is connected to a solenoid valve (not shown) and is also opened / closed by a controller (not shown).

The vibrating parts feeder 1 is further provided with an empty detection device 48, which has a publicly known structure, but is clearly shown in FIG. 4 via a arm 50 on a column 49 fixed to the base 16. When the coil spring m is not present at the lower end of the flat plate 51, the limit switch (not shown) installed on the bottom wall surface of the bowl 5 is turned on. The coil spring m comes under this, and when the flat plate 51 is raised, the limit switch is turned off.

The coil spring entanglement device 4 according to the embodiment of the present invention is configured as described above. Next, its operation will be described.

A large amount of coil springs m (not shown) are put in the hopper H. When the electromagnetic vibration feeder 2 is driven, the coil springs are sequentially cut out from the hopper H and the coil springs are vibrated by the vibration of the trough 40. m is supplied to the bowl 5 of the vibrating parts feeder 1.

In the vibrating parts feeder 1, an alternating magnetic attraction force is generated between the electromagnet 10 and the movable core 7 by energizing the coil 9 with an alternating current, which causes the bowl 5 to perform a known torsional vibration. As a result, the coil spring m rises on the track 6 in the bowl 5, but at this time, since a large amount of the coil spring m exists in the bowl 5 as shown in FIG. The flat plate 51 of 48 is displaced upward by the coil spring m to turn off the limit switch. Therefore, the driving of the electromagnetic vibration feeder 2 is stopped.

In the bowl 5, the coil spring m is transferred along the track 6. As shown in FIG. 7, when the coil spring m reaches the end of the track 6, the coil spring m is transferred to the side wall 5 a of the bowl 5. The coil spring m which is not entangled in the formed notch 5b passes through here and slides down to the coil spring supply track 17 side, and thereafter, in the notch 21 of the alignment track 22 as clearly shown in FIG. When they arrive, they are arranged in one row and are supplied to the linear vibration feeder 3. The linear vibrating feeder 3 maintains its posture, and one sheet is supplied from the discharge end to the next step (not shown). On the other hand, as clearly shown in FIG. 7, the entangled coil spring m cannot pass through the notch 5b and the end portion 6a of the track 6 is inclined downward in the radial direction, It drops into the communication passage 18, and further, from there, the communication track 19 is transferred by vibration and drops through the opening 20 to be guided into the entanglement device 4.

Since compressed air is ejected from the air ejection port 77a arranged at one end of the cylindrical body 61, the coil spring m introduced in the vicinity of the compressed air is applied to the inner peripheral wall surface of the cylindrical body 61 by the compressed air. When it reaches the upper wall portion of the cylindrical body 61 while being helically moved, it collides with the flat plate 81. At this time, the space corresponding to the winding pitch of the entangled coil spring is sandwiched between the flat plates 81, and air pressure is applied to the entangled coil spring m to loosen the entanglement. Further, the coil spring m following this collides with the coil spring m, whereby the entanglement of the coil spring is surely disentangled. The coil spring m performs a helical motion along the axis of the cylindrical body 61 as described above, so that when it collides with the partition wall 90, its entanglement is completely disentangled and the helical motion is continued. As a result, the coil spring m of the cylindrical body 61 reaches the end portion, soars upward on the air ejection port 84a that ejects air upward, rises on the vertical guide pipe 69, and further passes through the curved lead-out guide pipe 62. Although it collides with the wall formed by the net 66 and the sponge 65 provided at the end of the spring discharge port 63, the buffer spring of the sponge 65 causes the coil spring m to vibrate through the opening 68 without any damage. It is returned to the bowl 5 of the parts feeder 1. The entangled coil spring m has moved up the track 6 as clearly shown in FIG. 7 and has already been entangled, so that it passes through the notch 5b and is placed on the coil spring supply track 17. It is guided and supplied from the linear vibration feeder 3 to the next process. Even if the entanglement device 4 does not untangle the entanglement, when it is returned to the bowl 5 and reaches the notch 5b shown in FIG. 7, it falls into the communication passage 18 without passing through it. Then, the entanglement loosening device 4 receives the same action again.

The entanglement loosening device 4 according to the embodiment of the present invention is constructed and operates as described above, so that the coil spring is pressure-fed in the closed space A in the cylindrical body 61, which is wasteful. The helical motion is performed efficiently without consuming air, and the coil spring unraveling action described above reduces the amount of air consumed compared to the conventional entanglement unraveling device, and in the past it was blown upward to blow up the upper wall Since it was naturally dropped after colliding with the section, there was a risk of entanglement again, but in this example, a helical motion was performed, during which it collided against the flat plate 81 many times and the coil pitch was adjusted. The action of the flat plate 81 being sandwiched in the inside space A surely unravels the entanglement, and it is never said that they are entangled again.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, the air ejection port 77a of the air ejection pipe 77 is directed in the direction along the circumferential direction of the cylindrical body 61, and is oriented obliquely to the axis of the cylindrical body 61. Although the coil springs m are arranged so as to cause the coil spring m to make a helical motion, that is, to give a transfer force along the axial direction, such an arrangement of the air ejection ports 77a is adopted. Instead, the air jet 77a is directed in a direction perpendicular to the axis of the cylindrical body 61, that is, parallel to the circumferential direction, and the cylindrical body 61 is inclined downward in the axial direction toward the downstream side. By doing so, a transfer force along the axial direction may be applied to cause helical motion.

In addition, in the above embodiments, the loosening device for the coil spring m has been described. However, a coil-shaped component such as a filament of an electric ball is equivalent to the coil spring in the present invention.

Although FIG. 12 shows a modified example, parts corresponding to the respective constituent elements of the above-mentioned embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. That is, in this modified example, the introduction port 101a of the introduction guide pipe 101 connected to the cylindrical body 100 is below the level of the opening 20 at the end of the linked track, which is similar to the above-described embodiment. The outlet of the cylindrical body 100 is above the bottom wall of the bowl 5. That is, since the mouth for introducing the entangled coil spring m is located above the mouth for introducing the entangled coil spring m ′, the vertically extending vertical guide as in the above embodiment. The pipe 69 and the lead-out guide pipe 62 connected thereto are unnecessary. Therefore, the air jet nozzle pipe 84 blown upward is not necessary, and the apparatus can be much simplified, and the diameter of the outlet 102 is slightly reduced in the transfer direction of the coil spring m. The air is discharged smoothly and the air consumption is reduced.

[0033]

[Effect of device]

 As described above, according to the coil spring entanglement device of the present invention, the air consumption can be greatly reduced, and the entangled coil disentangling action can be greatly improved as compared with the prior art.

[Brief description of drawings]

FIG. 1 is a perspective view of a coil spring applied to an embodiment of the present invention.

FIG. 2 is a perspective view showing a entangled state of the coil spring.

FIG. 3 is a partially cutaway side view of a coil spring entanglement loosening device according to an embodiment of the present invention.

FIG. 4 is a partially cutaway plan view of the same.

FIG. 5 is an enlarged plan view of a main part of the apparatus.

6 is an enlarged cross-sectional view taken along line [6]-[6] in FIG.

FIG. 7 is a perspective view of the main part.

FIG. 8 is a partially cutaway enlarged side view of a further main part of the apparatus.

FIG. 9 is an exploded perspective view of the device.

FIG. 10 is a vertical cross-sectional view of the device.

FIG. 11 is a cross-sectional view of the device.

FIG. 12 is a vertical cross-sectional view of a main part showing a modified example.

[Explanation of symbols]

 61 cylindrical body 77a air jet 81 flat plate m coil spring

Claims (1)

[Scope of utility model registration request] 1. A cylindrical body arranged substantially horizontally, a plurality of flat plates fixed to an upper wall portion of an inner wall of the cylindrical body at a predetermined pitch along an axis, and one end portion of the cylindrical body. An air outlet provided in the bottom wall portion, and a entangled coil spring is supplied to one end of the cylindrical body, and air is ejected from the air outlet, so that the coil spring is disposed inside the cylindrical body. While being pumped along the wall surface and being collided with the flat plate, it is transported along the axial center of the cylindrical body, and the coil spring that is disentangled from the other end side of the cylindrical body is discharged. Characterized coil spring entanglement device.