JPH0117533Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a conveying device that continuously conveys a ring-shaped member such as a seal ring.

[Conventional technology]

For example, oil seals, mechanical seals, etc.
When automatically assembling a product consisting of a large number of ring parts, it is extremely efficient to have a means for continuously supplying a large number of identical parts to the production line. FIG. 4 shows a conventional example of such a ring supply technique, which has a structure in which a threaded rod b of an appropriate length is extended horizontally from one side of a rotational drive source a such as a motor. Rotate the ring R in the circumferential direction, align the ring R suspended on the threaded rod b with the screw pitch, and move the ring R to the left in the figure (as indicated by the arrow A).
direction) and discharged from the left open end.

[Problem that the invention attempts to solve]

However, according to this conventional mechanism, since the rotational drive source a is connected in series to one end of the threaded rod b (on the right side in the figure), when replenishing the ring R to the mechanism, it is necessary to The ring R must be inserted and inserted from the open end side in the right direction in the figure (in the direction of arrow B), which has the problem that it is not possible to carry out the transport and release of the ring R and replenish it at the same time. This has been an obstacle when it is necessary to continuously supply the ring R.

This invention was made in view of the above points,
It is an object of the present invention to provide a conveying device that can discharge and replenish conveying members at the same time and can continuously supply a large number of conveying members.

(Means for Solving the Problems) In order to achieve the above object, the conveying device of the present invention has a rotatably supported coil, and rotates the coil to move the conveying member suspended from the coil. In a conveying device, a coil is opened at both ends in the axial direction, and a portion in the axial direction is set to have a larger diameter than the other portion, and the length in the axial direction is approximately the same as the large diameter portion of the coil. and a plurality of rollers arranged around the outer periphery of the large diameter portion of the coil to rotatably support the coil, at least one of the plurality of rollers is connected to a rotational drive source, and the The large diameter portion of the coil is sandwiched between flanges formed near both ends of each roller in the axial direction.

[Effect]

In the conveyance device configured as described above, the coil is rotatably supported by a plurality of rollers, and at least one of the plurality of rollers is connected to a rotational drive source. Therefore, the coil rotates by receiving torque from the rotational drive source via the roller. The coil is supported by a plurality of rollers and has no other means of support, and both ends of the coil remain open. Therefore, the conveying member suspended from one end of the coil can be released from the other end of the coil.

When a plurality of rollers are arranged around the outer periphery of a coil and the coil is rotatably supported by the rollers, there is a risk that the coil, which has no other means of support, may shift in the axial direction during rotation. In contrast, the present invention sets a large diameter part in a part of the coil, and also provides a flange on each roller, and the large diameter part is sandwiched between the flanges and the two are engaged in the axial direction. It was decided to restrict axial movement.

〔Example〕

Hereinafter, one embodiment of the conveying device of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, a passage 2 is cut out in the upper side of a frame 1 that is erected on a base (not shown), and a coil 3 made of a rigid wire has an appropriate length so as to pass through the passage 2. is installed. This coil 3 has an axially intermediate portion having a larger diameter than both ends, and between the large diameter portion 4 and the small diameter portions 5 and 6 at both ends.
The tapered portions 7 and 8 are formed to gradually increase the diameter from the small diameter portions 5 and 6 toward the large diameter portion 4, and the large diameter portion 4 includes the small diameter portions 5 and 6 and the tapered portion 7, A rigid wire having a wire diameter larger than 8 is used and is smoothly joined to the tapered portions 7 and 8 so as not to form an extreme step. Said both end small diameter portions 5, 6
The leading ends of the windings 5a and 6a are wound approximately perpendicularly to the axis of the coil 3, that is, in a direction perpendicular to the figure (see FIG. 3). Directly above and diagonally below the large diameter portion 4 of the coil 3, one roller 9, 1 is provided.
0 and 11 are arranged parallel to the axis of the large diameter portion 4 and with their circumferential surfaces in contact with the outer diameter line of the large diameter portion 4, allowing the coil 3 to freely rotate in the circumferential direction. I support it. Of these three rollers 9, 10, 11, the two rollers 9, 10 arranged diagonally below the large diameter portion 4 are rotatably attached to shaft pins 12, 13 protruding from the frame 1. The large diameter part 4
The roller 11 disposed directly above the swing arm 1 has its base end 14a rotatably pivoted to the frame 1.
It is rotatably inserted into the shaft pin 15 at the tip of 4, and when the swing arm 14 is tilted in the direction of arrow C, the passage 2 is opened upward. Rotational torque is transmitted from a rotational drive source (not shown) to one roller 9 on the diagonally lower side via the belt 16, and when the belt 16 rotates in the direction of arrow D,
The coil 3 rotates counterclockwise in FIG. 2 via the drive roller 9. Each roller 9, 10, 11 is formed to have approximately the same axial length as the large diameter portion 4, and the large diameter portion 4 is located between flanges 17, 18 formed on the outer periphery of both ends.
The coil 3 is sandwiched between the coils 3 and 3, and is configured to act as a guide to restrict the axial movement of the entire coil 3.

The conveying device having the above configuration is driven by bringing three rollers 9, 10, 11 arranged around the large diameter portion 4 into contact with the outer diameter line of the large diameter portion 4 provided at the center of the coil 3. The coil 3 is rotatably supported via the roller 9, and both ends of the coil 3 are left open without connecting any member to them, and a space is secured to pass the ring R over the entire length directly below the coil 3. Therefore, the ring R inserted and inserted from one end of the coil 3 is suspended as it is, conveyed to the other end by the rotation of the coil 3, and released from the other end. Therefore, while replenishing the rings R from a supply source (not shown), it is possible to suspend and transport the rings R one after another and release them, making it possible to continuously supply a large number of rings R. Also, the last turn 5a at the tip of the small diameter portions 5, 6 of the coil 3,
By winding 6a at right angles to the axis of the coil 3, it is possible to prevent two or more rings R from being ejected at the same time. In other words, according to the conventional mechanism shown in Fig. 4, the pitch of the threaded rod b is generally formed to the same standard from the base end to the distal end, so the relationship between the pitch shape and the wire diameter of the ring R and the rotation of the threaded rod b Depending on the speed, two or more rings R1, R2 may be conveyed in contact with each other, and the plurality of rings R1, R2 may be ejected from the tip of the threaded rod b almost simultaneously, causing trouble in the next process. This was a contributing factor. The above-mentioned configuration in this embodiment of the present invention is intended to prevent such adverse effects, and is the most advanced single roll 5a, 6a.
is wound perpendicularly to the axis of the coil 3 so that the interval between the tip and the second winding 5b, 6b is gradually narrowed, and the plurality of rings R that have been conveyed in a superposed manner are
1. Among R2, the second and subsequent rings R from the tip
2 is left on the coil 3 to prevent simultaneous release of two or more rings R1 and R2. As shown in FIG. 3, two rings R1,
There are two types (・・・) in which R2 polymerizes between the first turns 5a, 6a and the second turns 5b, 6b at the tip of the coil 3. After the first ring R1 is released, the second ring R2 is left on the coil 3 for at least one further revolution of the coil 3. In addition, in the above example,
The same processing was applied to both ends of the coil 3 assuming that the conveyance direction would be reversed due to the rotation of the coil 3 in both forward and reverse directions, but when the conveyance is only in one direction, the above process was applied only to the open end on the ring discharge side. Needless to say, it is a good thing to do.

[Effect of idea]

As explained above, the conveyance device of the present invention rotatably supports a coil with both ends open by a plurality of rollers, at least one of which is connected to a drive source, and the conveyance member is moved from one end of the coil. The coil is suspended and conveyed so as to pass to the other end, and the conveying members can be conveyed and discharged while being replenished one after another from one end of the coil, and a large number of members can be connected and conveyed. It is possible. Therefore, it is possible to eliminate the inconvenience of having to stop the product manufacturing line every time the conveying member is replenished, which is the case with conventional mechanisms. Furthermore, when a plurality of rollers are arranged around the outer periphery of a coil and the coil is rotatably supported by the rollers, the coil, which has no other means of support, may be rotated due to contact with the rollers, etc. However, in the conveying device of the present invention, the coil has a large diameter part, the axial length of the roller is set to be approximately the same length as the large diameter part, and both axial ends of the roller Since a flange is provided near the roller and the large diameter part of the coil is sandwiched between the flanges, the large diameter part and the flange engage in the axial direction, suppressing the axial movement of the coil, and preventing the coil from coming off the roller. This makes it possible to prevent inconveniences such as when the device stops operating.

[Brief explanation of the drawing]

Fig. 1 is a structural explanatory diagram of a conveying device according to an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is an explanatory diagram of the operation of the open end of the coil of the conveying device, and Fig. 4 is a conventional example. It is a front view of such a conveyance device. 1... Frame, 2... Passage, 3... Coil,
4... Large diameter part, 5, 6... Small diameter part, 7, 8... Taper part, 9, 10, 11... Roller, 16... Belt, 17, 18... Flange, R, R1, R2
……ring.

Claims (1)

[Claims for Utility Model Registration] 1. In a conveying device that has a rotatably supported coil and rotates the coil to convey a conveying member suspended from the coil, both ends in the axial direction are open. , a coil in which a portion in the axial direction is set to have a larger diameter than the other portion, and a length in the axial direction is set to approximately the same length as the large diameter portion of the coil, and is arranged on the outer periphery of the large diameter portion of the coil. and a plurality of rollers rotatably supporting the coil, at least one of the plurality of rollers is connected to a rotational drive source, and between flanges formed near both axial ends of each roller. A conveying device characterized in that the large diameter portion of the coil is narrowed. 2. The conveying device according to claim 1, wherein the last turn of the open end of the coil on the conveying member discharge side is wound approximately at right angles to the axis of the coil. .