JP2017019665A - Entangled parts separation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an entangled parts separation device capable of easily separating parts entangled with each other.SOLUTION: An entangled parts separation device is equipped with a cylindrical drum 10 which includes a first opening portion 11 functioning as an introducing port of parts, and a second opening portion 13 functioning as a discharge port of the parts; a plurality of protrusions 31 which projects out to the inside of the drum 10 from an inner wall 17 of the drum 10; and a drive mechanism which rotates the drum 10 about a rotary shaft intersecting a gravity direction, while a center of the first opening portion 11 is higher than a center of the second opening portion 13.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an entangled component separator, and more particularly to an entangled component separator that removes entanglement of a plurality of entangled parts.

  In recent years, production has been automated, and robots are used for assembling parts. The parts to be assembled by the robot need to be supplied to the robot with the parts oriented so that the robot can grasp them. 2. Description of the Related Art As a device that supplies parts to a robot in a uniform orientation, there is known a vibration-type parts feeder that moves parts by vibrating the parts and aligns the parts in a path along which the parts move. For example, Japanese Patent Laying-Open No. 2015-059008 discloses a chip component supply device that supplies a chip component to a pickup device that picks up a chip component facing a specific surface, and is sandwiched between an inner cylinder wall and an outer cylinder wall. A vibrating bowl having a circular conveying path; and a vibrator for vibrating the vibrating bowl, wherein the conveying path is continuous with an inclined surface and an upper end of the inclined surface, and the inclination is gentler than the inclined surface. The pickup device includes a pickup surface on which a pickup operation is performed, and a step connecting the lower end of the slope and the pickup surface, the vibrator vibrates the vibrating bowl, and inserts a chip component from the lower end of the slope. While moving the transport path in the upper end direction, the chip parts overlapping on the slope are separated, and the step reverses the chip parts left on the pickup surface. It describes a chip component feeding apparatus, characterized in that for dropping the capacity.

However, the vibration-type parts feeder has a problem in that it cannot separate a plurality of components that are intertwined with each other.
JP2015-059008 A

  The present invention has been made to solve the above-described problems, and one of the objects of the present invention is to provide an entangled component separating apparatus capable of easily separating parts entangled with each other.

  In order to achieve the above-described object, according to one aspect of the present invention, the entangled component separation device includes a first opening serving as a part introduction port and a second opening serving as a part discharge port. Rotate the drum around the rotation axis intersecting the direction of gravity with the drum, the plurality of protrusions protruding from the drum side wall to the inside of the drum, and the center of the first opening higher than the center of the second opening And a drive mechanism.

  According to this aspect, since the drum rotates around the rotation axis that intersects the direction of gravity in the state where the center of the first opening is higher than the center of the second opening, the parts introduced into the first opening are the first. It moves from the opening toward the second opening. A part group consisting of a plurality of parts intertwined with other parts among the parts introduced into the first opening is entangled with one of the plurality of protrusions, so that the part group does not move to the second opening. be able to. A group of parts entangled with any of the plurality of protrusions is lifted upward by the rotation of the drum and then dropped by gravity. For this reason, entanglement with other parts may be canceled among the plurality of parts included in the part group due to falling. For this reason, the entangled component separation apparatus which can isolate | separate the parts entangled mutually can be provided.

  Preferably, the plurality of protrusions are spaced apart from each other in the circumferential direction by a predetermined distance from the first opening of the drum.

  Preferably, the plurality of protrusions are spaced apart from each other in a cylindrical region at a predetermined distance from the first opening of the drum.

  Preferably, the distance between the end portions of the plurality of protrusions is set so that the parts do not entangle with two or more of the plurality of protrusions simultaneously with the rotation of the drum.

  Preferably, when a plurality of parts are inserted into the drum from the first opening, a part group consisting of a plurality of parts entangled with other parts among the plurality of parts is two or more of the plurality of protrusions as the drum rotates. The distances between the ends of the plurality of protrusions are set so as to be simultaneously entangled with each other.

  Preferably, the minimum value of the distance between each of the plurality of ends of the plurality of protrusions is greater than the maximum value of the part.

  According to this aspect, since the minimum value of the distance between the plurality of ends of each of the plurality of protrusions is larger than the maximum value of the parts, one part does not simultaneously entangle with two or more of the plurality of first protrusions. It is possible to prevent the parts from moving as the drum rotates.

  Preferably, the interval at which each of the plurality of protrusions is disposed on the inner wall of the drum is greater than the maximum length of the part.

  According to this aspect, a single part that is not entangled with other parts can pass through between the plurality of protrusions, so that the single part can be discharged from the second opening.

It is an external view which shows an example of the entangled component separation apparatus in this Embodiment. It is a front view of the components separation apparatus in case a support angle is 0 degree | times. It is a left view of the component separation apparatus in case a support angle is 0 degree | times. It is a top view of the components separation apparatus in case a support angle is 0 degree | times. It is a top view which shows an example of the parts thrown into the entangled components separation apparatus in this Embodiment. It is an expanded view of a drum. 3 is a cross-sectional view of the drum 10 at a distance L1 from the first opening 11. FIG. 2 is a cross-sectional view of the drum 10 at a distance L2 from the first opening 11. FIG. 3 is a cross-sectional view of the drum 10 at a distance L7 from the first opening 11. FIG. It is an expanded view of the drum in the 1st modification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 is an external view showing an example of an entangled component separation device in the present embodiment. Referring to FIG. 1, the entangled component separation device 1 includes a cylindrical drum 10 and a drive mechanism 20 that rotates the drum 10. The drive mechanism 20 supports the drum 10 in a rotatable state. Moreover, the drive mechanism 20 supports the drum 10 so that the angle with respect to the gravity direction of the rotating shaft 39 can be adjusted. Here, the angle of the rotation shaft 39 with respect to the horizontal direction perpendicular to the gravity direction is referred to as a support angle, and FIG. 1 shows an example in which the support angle is θ (θ> 0).

  FIG. 2 is a front view of the component separating apparatus when the support angle is 0 degree. FIG. 3 is a left side view of the component separating apparatus when the support angle is 0 degree. FIG. 4 is a plan view of the component separating apparatus when the support angle is 0 degree. 2 to 4, the drive mechanism 20 includes a motor 21, a drive belt 23, a first roller 24, a second roller 25, a stopper 26, and a base 29.

  The motor 21, the first roller 24, and the second roller 25 are fixed to the base 29 so that the respective rotation axes are parallel to each other. The distance from the base 29 of the rotating shaft of each of the first roller 24 and the second roller 25 is the same. The first roller 24 is connected by a pulley 22 connected to the drive shaft of the motor 21 and a drive belt 23, and the rotational force of the motor 21 is transmitted to the first roller 24.

  The direction of the base 29 is determined based on the rotation axes of the first roller 24 and the second roller 25. The ends of the base 29 that intersect with the rotation axes of the first roller 24 and the second roller 25 are referred to as a front end and a rear end. The inclination of the base 29 can be changed so that the rear end is higher than the front end.

  The drum 10 includes a first opening 11 serving as a part introduction port, a second opening 13 serving as a part discharge port, and an annular flange 15 extending from an outer wall thereof.

  The drum 10 is placed on the first roller 24 and the second roller 25. The direction in which the drum 10 is placed on the first roller 24 and the second roller 25 is such that the first opening 11 is the rear end side of the base 29 and the second opening 13 is the front end side of the base 29. Direction. For this reason, the rotating shaft 39 of the drum 10 is parallel to the rotating shafts of the first roller 24 and the second roller 25, and the distance from the side wall of the drum 10 is constant.

  When the motor 21 is driven while the drum 10 is placed on the first roller 24 and the second roller 25, the rotation of the motor 21 is transmitted to the first roller 24 via the drive belt 23. When the first roller 24 rotates, the drum 10 is rotated by the frictional force of the portion where the first roller 24 contacts the drum 10. Further, when the drum 10 is rotated, the second roller 25 is rotated by the frictional force of the portion where the drum 10 is in contact with the second roller 25.

  The stopper 26 is fixed on the base 29 between the first roller 24 and the second roller. The stopper 26 includes a shaft 26A that extends vertically from the base 29 and a roller 26B that rotates about the shaft. When the drum 10 is placed on the first roller 24 and the second roller 25, the stopper 26 is below the side surface of the drum 10, and the roller 26B of the stopper 26 is above the lowermost end of the flange 15 of the drum 10. It becomes. The drum 10 is placed on the first roller 24 and the second roller 25 so that the flange 15 is positioned closer to the first opening 11 than the roller 26B of the stopper 26. For this reason, the movement of the drum 10 in the direction from the first opening 11 toward the second opening 13 is restricted by the flange 15 of the drum 10 coming into contact with the roller 26B of the stopper 26. Therefore, even when the inclination of the base 29 is changed so that the rear end thereof is higher than the front end, the relative position of the drum 10 with respect to the base 29 in the direction along the rotation shaft 39 is constant. The drum 10 can be rotated in the maintained state.

  The drum 10 includes a plurality of first protrusions 31, a plurality of second protrusions 33, and a plurality of third protrusions 35, each protruding from the inner wall of the drum 10. Each of the plurality of first protrusions 31, the plurality of second protrusions 33, and the plurality of third protrusions 35 protrudes vertically from the inner wall of the drum 10.

  In the entangled component separating apparatus 1 according to the present embodiment, the diameter of the drum 10 is 300 mm, the length of the first protrusion 31 is 120 mm, the length of the second protrusion 33 is 60 mm, and the length of the third protrusion 35 is set. 60 mm.

  FIG. 5 is a plan view showing an example of parts put into the entangled component separation device in the present embodiment. Referring to FIG. 5, the part has a circular shape with a circular cross section and a part opened. Since some of the parts are open, other parts enter from the opening and are easily entangled. In the present embodiment, the maximum part length is 46 mm.

  Referring again to FIGS. 2 to 4, the entangled component separation device 1 according to the present embodiment is driven in a state where the drum 10 is inclined at the support angle θ. When a plurality of parts are inserted from the first opening 11 of the drum 10 and the drum 10 rotates, the plurality of parts receive a force from the first opening 11 toward the second opening 13 in the drum 10 due to gravity. Since the drum 10 includes a plurality of first protrusions 31, a plurality of second protrusions 33, and a plurality of third protrusions 35, the plurality of parts include a plurality of first protrusions 31, a plurality of second protrusions. The drum 10 moves from the first opening 11 to the second opening 13 while passing between the portion 33 and the plurality of third protrusions 35.

  The plurality of first protrusions 31 are arranged at predetermined intervals in the circumferential direction at a distance L1 from the first opening 11. It is preferable that the maximum length of the interval between the two adjacent first protrusions 31 is 2.5 to 3 times the maximum length of the part. For this reason, the number of the 1st projection parts 31 is decided by the diameter of a drum, and the maximum length of parts. Each of the plurality of first protrusions 31 is shorter than the radius of the drum 10. For this reason, since each of the plurality of first protrusions 31 does not come into contact with the other first protrusions 31, the probability that one part is simultaneously entangled with two or more of the plurality of first protrusions 31 is reduced. can do.

  It is preferable that the minimum value of the interval between the end portions of the plurality of first protrusions 31 is larger than the maximum length of the part. For this reason, the maximum value of the length of each of the plurality of first protrusions 31 is determined by the interval between the end portions of each of the plurality of first protrusions 31 and the maximum length of the parts. If one part is simultaneously entangled with two of the plurality of first protrusions 31, even if the drum 10 rotates, the movement of the parts is restricted by the two first protrusions 31, and the part cannot be moved. There is a case. For this reason, the minimum value of the distance between the end portions of each of the plurality of first protrusions 31 is made larger than the maximum length of the parts, so that it does not get entangled with other parts among the plurality of parts thrown into the first opening. It is possible to prevent a single part from being simultaneously entangled with two or more of the plurality of first protrusions 31.

  The plurality of second protrusions 33 include one or more sets arranged at a predetermined interval in the circumferential direction on the second opening 13 side than the plurality of first protrusions 31. The interval at which two adjacent second protrusions 33 belonging to the same group are arranged is determined by the size of the parts. It is preferable that the maximum length of the interval between the two adjacent second protrusions 33 is 1.5 to 2 times the maximum length of the part. For this reason, the number of the 1st projection parts 31 is decided by the diameter of a drum, and the maximum length of parts. Further, the lengths of the plurality of second protrusions 33 are shorter than the lengths of the plurality of first protrusions 31. The length of the plurality of second protrusions 33 is preferably less than or equal to half the length of the plurality of first protrusions 31. Further, the lengths of the plurality of second protrusions 33 do not have to be the same, and the lengths may be different.

  The plurality of third protrusions 35 include one or more sets arranged at a predetermined interval in the circumferential direction on the first opening 13 side than the plurality of first protrusions 31. The interval at which two adjacent third protrusions 35 belonging to the same group are arranged is determined by the size of the part. It is preferable that the maximum length of the interval between the two adjacent third protrusions 35 is 2.5 to 3 times the maximum length of the part. For this reason, the number of the 3rd projection parts 35 is decided by the diameter of a drum, and the maximum length of parts. The lengths of the plurality of third protrusions 35 are shorter than the lengths of the plurality of first protrusions 31. The length of the plurality of third protrusions 35 is preferably less than or equal to half the length of the plurality of first protrusions 31. Further, the lengths of the plurality of third protrusions 35 do not have to be the same, and the lengths may be different.

  Here, the drum 10 has three first sets including eight first protrusions 31, sixteen second protrusions 33, and eight third protrusions 35 as one set. An example of having three sets will be described. The 1st projection part 31, the 2nd projection part 33, and the 3rd projection part 35 are bar-shaped shapes with a circular cross section. The end portions of the first projecting portion 31, the second projecting portion 33, and the third projecting portion 35 are rounded. This is to prevent the parts from being damaged by contact with the parts, and to make the entangled parts easily detached. Further, each of the first protrusion 31, the second protrusion 33, and the third protrusion 35 has a surface polished when made of metal to make the entangled parts slip easily, and made of resin. Is preferably coded with a fluororesin.

  FIG. 6 is a development view of the drum. Referring to FIG. 6, eight first protrusions 31 are arranged at equal intervals in the circumferential direction at a distance L1 from first opening 11. FIG. 7 is a cross-sectional view of the drum 10 at a distance L1 from the first opening 11. 6 and 7, the eight first protrusions 31 protrude from the side wall of the drum 10 toward the rotation shaft 39. Since the eight first protrusions 31 are arranged at equal intervals, the interval between the two adjacent first protrusions 31 is set to three times the maximum length of the part.

  In addition, sixteen second protrusions 33 constituting the first set are arranged at equal intervals in the circumferential direction at a distance L2 from the first opening 11, and at a distance L3 from the first opening 11. Sixteen second protrusions 33 constituting the second set are arranged at equal intervals in the circumferential direction, and sixteen constituting the third set in the circumferential direction at a distance L4 from the first opening 11. The second protrusions 33 are arranged at equal intervals. Since the 16 second protrusions 33 in the first to third groups are the same, here, the 16 second protrusions 33 included in the first set will be described. FIG. 8 is a cross-sectional view of the drum 10 at a distance L2 from the first opening 11. With reference to FIGS. 6 and 8, the 16 second protrusions 33 protrude from the side wall of the drum 10 in the direction of the rotation shaft 39. Since the 16 second protrusions 33 are arranged at equal intervals, the interval between the two adjacent second protrusions 33 is 1.5 times the maximum length of the part.

  The distance L2 is longer than the distance L1. The difference G1 obtained by subtracting the distance L1 from the distance L2 indicates the interval between the first set and the second set, and is determined by the diameter D of the drum 10 and the support angle θ that is the tilt angle of the drum 10. For example, the difference G1 is preferably greater than or equal to Dtanθ. The distance L3 is longer than the distance L2, and the difference G2 obtained by subtracting the distance L2 from the distance L3 indicates an interval between the second set and the third set, and is determined by the diameter D of the drum 10 and the support angle θ of the drum 10. . For example, the difference G2 is preferably greater than or equal to Dtanθ. Similarly, the distance L4 is longer than the distance L3, and the difference G3 obtained by subtracting the distance L3 from the distance L4 is determined by the diameter D of the drum 10 and the support angle θ of the drum 10. For example, the difference G3 is preferably greater than or equal to Dtanθ.

  Further, eight third protrusions 35 constituting the first set are arranged at equal intervals in the circumferential direction at a distance L7 from the first opening 11, and at a distance L6 from the first opening 11. Sixteen third protrusions 35 constituting the second set are arranged at equal intervals in the circumferential direction, and eight pieces constituting the third set are arranged in the circumferential direction at a distance L5 from the first opening 11. The third protrusions 35 are arranged at equal intervals. Since the eight third projecting portions 35 of each of the first to third sets are the same, the eight third projecting portions 35 included in the first set will be described here. FIG. 9 is a cross-sectional view of the drum 10 at a distance L7 from the first opening 11. With reference to FIGS. 6 and 9, the eight third protrusions 35 protrude from the side wall of the drum 10 in the direction of the rotation shaft 39. Since the eight third protrusions 35 are arranged at equal intervals, the interval at which the two third protrusions 35 adjacent to each other are arranged is three times the maximum length of the part.

  The distance L5 is shorter than the distance L1, the distance L6 is shorter than the distance L5, and the distance L7 is shorter than the distance L6. A value obtained by subtracting the distance L7 from the distance L6 indicates an interval between the first set and the second set, and a value obtained by subtracting the distance L6 from the distance L5 indicates an interval between the second set and the third set. The interval between the first set and the second set, and the interval between the second set and the third set are preferably larger than the maximum length of the parts. More preferably, the interval between the first set and the second set, and the interval between the second set and the third set are preferably larger than the interval between the first set and the second set of the second protrusion 33. .

  Next, in the entangled component separating apparatus 1 according to the present embodiment, the state of the plurality of parts when a plurality of parts are introduced into the drum 10 from the first opening 11 and the motor 21 is driven will be described. Here, the motor 21 rotates in the same direction at a constant angular velocity. In the plurality of parts introduced into the drum 10 from the first opening 11, since the first opening 11 of the drum 10 is above the second opening 13, the first opening 11 to the second opening 13 are caused by gravity. Accepts the force in the direction toward. For this reason, it is preferable that the inner wall of the drum 10 is polished so that the parts are slippery.

  At the stage where a plurality of parts are introduced into the drum 10 from the first opening 11 and the motor 21 is driven, a multipart group in which four or more parts of the plurality of parts are entangled with each other includes eight first protrusions 31. Any of the above restricts movement of the eight first protrusions 31 toward the second opening 13. Further, a minority part group in which three or less parts are entangled among a plurality of parts passes through the eight first protrusions 31 and is closer to the second opening 13 than the eight first protrusions 31. It is possible to move. A single part that is not intertwined with other parts among the plurality of parts passes through the eight first protrusions 31 and moves to the second opening 13 side rather than the eight first protrusions 31. It is possible.

  In the present embodiment, the minimum value of the distance between the end portions of each of the eight first protrusions 31 is larger than the maximum length of the part. For this reason, one part is not entangled with two or more of the eight first protrusions 31 at the same time, and a single part that does not entangle with other parts does not entangle with any of the eight first protrusions 31. Moreover, the probability of moving to the second opening 13 side can be increased.

  In addition, a large number of parts groups may be simultaneously entangled with two or more of the eight first protrusions 31. When the number of the first protrusions 31 intertwined among the eight first protrusions 31 increases, the movement of the parts group during the rotation of the drum 10 is the number of the first protrusions 31 intertwined. Regulated in the same number of directions. However, two or more parts intertwined with any of the eight first protrusions 31 among the plurality of parts included in the multiple parts group are all different. For this reason, in the multi-part group, as the drum 10 rotates, the entanglement method of the plurality of parts constituting the multi-part group changes, and the shape of the multi-part group changes. Specifically, among the many parts group, as the drum 10 rotates, the part that has been entangled with the part that has been entangled until then is removed, and the part that has left the part part group has not been entangled until then. There are parts that are entangled with the parts, parts that are entangled with the first protrusions 31 that have been entangled so far, parts that are newly entangled with the first protrusions 31, and the like. For this reason, in the multiple parts group, as the drum 10 rotates, the entanglement with the first protrusions entangled among the eight first protrusions 31 may be eliminated, and the eight first In some cases, the first protrusion 31 may be entangled with the first protrusion that was not entangled.

  For this reason, the multi-part group changes its shape while being entangled with two or more of the eight first protrusions 31 as the drum 10 rotates, so that a part that detaches from the multi-part group is generated. A single part that is not entangled with a small number of parts and other parts out of parts that detach from the large number of parts passes through between the eight first protrusions 31 and is a second opening than the eight first protrusions 31. Movement to the 13 side is possible.

  The multiple parts group entangled with any of the eight first protrusions 31 is entangled with at least one of the eight third protrusions 35 belonging to each of the first to third groups. The eight third protrusions 35 belonging to each of the first to third groups rotate the whole of a large number of parts entangled with any of the eight first protrusions 31 as the drum 10 rotates. . As a result, a single part or a small number of parts separated from the large number of parts group is between the eight third protrusions 35 and the eight first protrusions 31 belonging to the first to third groups. It is possible to pass through the first opening 31 and move toward the second opening 13 rather than the eight first protrusions 31.

  When the drum 10 does not have the eight third protrusions 35 belonging to the first to third sets, the multiple parts group entangled with any of the eight first protrusions 31 is the eight first protrusions. A portion entangled with one of the protrusions 31 receives a force from the first protrusion 31, but a portion that is not entangled with any of the eight first protrusions 31 receives a force from the part with which it entangles and rotates. . For this reason, the force which the part entangled in any of the eight 1st projection parts 31 receives from the 1st projection part 31 is transmitted to another part in order, and the whole many parts group rotates. At this time, the entanglement between a plurality of parts entangled with each other may become strong.

  When the drum 10 has eight third protrusions 35 belonging to each of the first to third sets, the entire multiple parts group entangled with any of the eight first protrusions 31 is Since it is rotated with rotation, it prevents the entanglement force between multiple parts that make up the multiple parts group from becoming strong, and makes it easy to separate multiple parts that make up the multiple parts group from the multiple parts group Can do.

  Of the plurality of parts put into the first opening 11, a part that passes between the eight first protrusions 31 and reaches a position equal to or longer than the distance L <b> 2 from the first opening 11 is a single part. Or a few parts group. Since the drum 10 is inclined, the single part moves through the gap between the 16 second protrusions 33 of each of the first to third sets, and moves to the second opening 13 by gravity to be discharged from the drum 10. Is done. The minority part group is restricted from moving to the second opening 13 by any one of the 16 second protrusions 33 constituting the first set. The minority part group is entangled with one of the 16 second projecting portions 33 constituting the first set, and is lifted upward by the rotation of the drum 10 while being entangled with the second projecting portion 33. When the entanglement with the two projecting portions 33 is eliminated, it falls downward. Since the minority parts group collides with the inner wall of the drum 10 when dropped, the entanglement may be eliminated by the external force. Of the two or more parts constituting the small number of parts group, a single part in which the entanglement is eliminated can move to the second opening 13 by gravity.

  On the other hand, since the difference G2 obtained by subtracting the distance L2 from the distance L3 is equal to or greater than Dtanθ, the position where the minority part group falls is entangled with any of the 16 second protrusions 33 constituting the second set. For this reason, a new minority part group that constitutes a plurality of parts that have not been entangled with other parts in the minority part group is one of the 16 second protrusions 33 that constitute the second set. Entangled and lifted upward by the rotation of the drum 10, and then falls downward when the entanglement with the second protrusion 33 is eliminated by gravity. A single part in which the entanglement is eliminated among two or more parts constituting the minority part group can move to the second opening 13 by gravity, but the entanglement with other parts in the minority part group A new minority part group that constitutes a plurality of parts that has not been solved is entangled with one of the 16 second protrusions 33 constituting the third group, and is lifted upward by the rotation of the drum 10. Then, when the entanglement with the second protrusion 33 is eliminated by gravity, it falls downward. Thus, since the minority part group is dropped three times, the minority part group can be separated into a single part with high probability. In addition, although the example provided with 3 sets of 16 2nd projection parts 33 was demonstrated here, you may make it change the number of sets according to the shape, material, etc. of parts. By increasing the number of sets, it is possible to increase the probability that it can be separated into single parts. Moreover, when the probability that it can be separated into individual parts becomes a predetermined value, one set may be used.

  As described above, the component separating apparatus 1 according to the present embodiment includes the cylindrical drum 10 including the first opening 11 serving as a part introduction port and the second opening 13 serving as a part discharge port. A plurality of first protrusions 31 that protrude from the side wall of the drum 10 to the inside of the drum and are spaced apart from each other in the circumferential direction of the drum, and a rotation shaft 39 that is inclined by a support angle θ from the horizontal direction. And a drive mechanism 20 that rotates the drum 10. For this reason, a part group consisting of a plurality of parts intertwined with other parts among the parts introduced into the first opening 11 is entangled with one of the plurality of first protrusions 31, so that the part group is the second opening. The movement to the part 13 can be prevented. Further, a part group entangled with any of the plurality of first protrusions 31 is lifted upward by the rotation of the drum and then falls by gravity. For this reason, entanglement with other parts may be canceled among the plurality of parts included in the part group due to falling. For this reason, parts entangled with each other can be separated.

  The drum 10 includes a plurality of second protrusions 33 that are spaced apart from each other in the circumferential direction on the second opening 13 side from the plurality of first protrusions 31. The length in the radial direction is longer than the length in the radial direction of the plurality of second protrusions 33. For this reason, the plurality of first protrusions 31 separates a group of parts having a larger number of parts than the plurality of second protrusions 33, and the plurality of second protrusions 33 separates the plurality of first protrusions 31. It is possible to separate parts groups in which the number of parts entangled with each other is reduced. For this reason, the number of entangled parts is reduced step by step, so that the entangled parts can be separated efficiently.

  Moreover, since the minimum value of the distance between the plurality of end portions of each of the plurality of first protrusions 31 is larger than the maximum value of the parts, one part does not simultaneously entangle with two or more of the plurality of first protrusions 31. It is possible to prevent the parts from moving as the drum 10 rotates.

  In addition, since the interval at which each of the plurality of first protrusions 31 is arranged on the inner wall of the drum is larger than the maximum length of the part, a single part that does not entangle with other parts slips between the plurality of first protrusions 31. And a single part can be discharged from the second opening 13.

  In addition, the drum 10 further includes a plurality of third protrusions 35 that are spaced apart from each other in the circumferential direction on the first opening 11 side from the plurality of first protrusions 31. For this reason, when a part group composed of a plurality of parts entangled with each other is entangled with any of the plurality of first protrusions 31, the part group is also entangled with the plurality of third protrusions 35. Parts can be rotated. Thereby, a plurality of parts entangled with each other can be separated while rotating the parts group.

  In the present embodiment, the eight first protrusions 31 are arranged at equal intervals in the circumferential direction, but may not be equal intervals. Similarly, the 16 second protrusions 33 constituting each of the first to third sets are arranged at equal intervals in the circumferential direction, but may not be equal intervals. Further, the eight third projecting portions 35 constituting each of the first to third sets are arranged at equal intervals in the circumferential direction, but may not be equal intervals.

<First Modification>
In the entangled parts separating device 1 according to the above-described embodiment, the drums 10 are arranged in the eight third protrusions arranged at predetermined intervals in the circumferential direction closer to the first opening 13 than the eight first protrusions 31. The case where three sets of the protrusions 35 are included has been described as an example. In the entangled parts separating device 1 in the first modified example, the plurality of third projecting portions 35 have a predetermined interval in a direction parallel to the rotary shaft 39 closer to the first opening 13 than the eight first projecting portions 31. It is arranged at. In this case, the interval at which the two third protrusions 35 adjacent to each other are arranged can be arbitrarily determined. The lengths of the plurality of third protrusions 35 can be arbitrarily determined.

  Here, in the entangled parts separating device 1 in the first modification, the drum 10 has three sets of eight first protrusions 31 and sixteen second protrusions 33 as one set. A case where there are three third protrusions 35 will be described as an example. Since the eight first protrusions 31 and the 16 second protrusions 33 belonging to each of the first to third groups are the same as those of the entangled parts separating device 1 described above, description thereof will not be repeated here.

  FIG. 10 is a development view of the drum in the first modification. Referring to FIG. 10, the three third protrusions 35 are arranged at a predetermined interval in a direction parallel to the rotation shaft 39 on the first opening 13 side than the eight first protrusions 31.

  Next, in the entangled component separating apparatus 1 according to the first modification, the state of the plurality of parts when a plurality of parts are introduced into the drum 10 from the first opening 11 and the motor 21 is driven will be described. At the stage where a plurality of parts are introduced into the drum 10 from the first opening 11 and the motor 21 is driven, a multipart group in which four or more parts of the plurality of parts are entangled with each other includes eight first protrusions 31. Any of the above restricts movement of the eight first protrusions 31 toward the second opening 13.

  The three third projecting portions 35 move the multiple parts group located closer to the first opening 11 side than the eight first projecting portions 31 as the drum 10 rotates. As the multiple parts group moves upward, the multiple parts group is entangled with the third protrusion 35 due to gravity and falls downward. When the multiple parts group falls downward, it collides with the inner wall of the drum 10, so that the entanglement may be eliminated by the external force. Among the plurality of parts constituting the multiple parts group, the minority part group or the single part in which the entanglement has been eliminated passes between the eight first protrusions 31 before the entanglement with the third protrusion 35 next. The eight first protrusions 31 can move to the second opening 13 side. In this way, the third protrusion 35 moves the multiple parts group upward as the drum 10 rotates, so that the period from when the multiple parts group starts to move upward until it falls, It can be ensured as a time for a small number of parts group or a single part to move from the eight first protrusions 31 to the second opening 13 side. The lengths of the three third protrusions 35 are determined by the period from when the multiple parts group starts to move upward until it falls. The longer the length of the three third protrusions 35, the longer the time of intertwining with the large number of parts group, so the period from when the large number of parts group starts moving upward until it falls is longer. Become.

  In the entangled component separation device 1 according to the first modification, the drum 10 includes a plurality of third protrusions that are arranged at a distance from each other in the direction of the rotation shaft 39 on the first opening 11 side of the plurality of first protrusions 31. The unit 35 is further included. For this reason, when a part group composed of a plurality of parts entangled with each other is entangled with any of the plurality of first protrusions 31, the part group is also entangled with the plurality of third protrusions 35. The parts can be dropped by gravity after being lifted upward. Thereby, a plurality of parts entangled with each other can be separated. In addition, the period from when the parts group is lifted upward until it is dropped, the single part located on the first opening 11 side from the plurality of first protrusions 31 is the second opening than the plurality of first protrusions 31. Since the time for moving to the 13th side is secured, it is possible to prevent a single part from being entangled with a part group.

<Second Modification>
Rather than making the lengths of the eight third protrusions 35 included in each of the first to third sets in the above-described embodiment all the same, the specific third protrusion 35 is replaced with a plurality of other third protrusions 35. The length may be longer than the three protrusions 35. For example, one of the eight third protrusions 35 included in the first set is designated as a specific third protrusion 35, and the first set of eight third protrusions 35 included in the second set One closest to the specific third protrusion 35 is defined as a specific third protrusion 35, and the second set of specific third protrusions among the eight third protrusions 35 included in the third set. One with the shortest distance to the part 35 is defined as a specific third protrusion 35. As a result, the three specific third projecting portions 35 can separate the parts by lifting and dropping a large number of parts groups upward, and the other plurality of third projecting portions 35 By rotating, parts can be separated.

<Third Modification>
In the above-described embodiment, the case where each of the plurality of first protrusions 31, the plurality of second protrusions 33, and the plurality of third protrusions 35 protrudes vertically from the inner wall of the drum 10 has been described as an example. Each of the plurality of first protrusions 31, the plurality of second protrusions 33, and the plurality of third protrusions 35 may protrude from the inner wall of the drum 10. Preferably, each of the plurality of second protrusions 33 and the plurality of third protrusions 35 protrudes toward the rotation shaft 39. For example, each of the plurality of first protrusions 31, the plurality of second protrusions 33, and the plurality of third protrusions 35 may be inclined and protrude toward the first opening 11, or the second opening You may make it protrude inclining to 13 side. In this case, the length in the radial direction of the image in which each of the plurality of first protrusions 31 is projected on the second opening 13 is the diameter of the image in which each of the plurality of second protrusions 33 is projected on the second opening 13. Longer than the direction length.

<Fourth Modification>
In the entangled component separation device 1 in the above-described embodiment, the eight first protrusions 31 are arranged at predetermined intervals in the circumferential direction at a distance L1 from the first opening 11, but the first opening You may make it arrange | position with the predetermined | prescribed space | interval in the circumferential direction in the cylindrical part from the part 11 to the distance L1 to the distance L5. In this case, it is preferable to arrange the eight first protrusions 31 in a staggered pattern. Specifically, with respect to the first protrusion 31 disposed at a distance L1 from the first opening 11, two adjacent first protrusions 31 are more predetermined than the distance L1 from the first opening 11. Two first protrusions 31 adjacent to the first protrusion 31 disposed at a distance L8 from the first opening 11 are disposed at the position of the distance L8 that is longer than the first opening 11 by the first opening 11. It is arranged at a position of a distance L1 from the part 11. The intervals at which the eight first protrusions 31 are arranged may not be the same.

  Similarly, the 16 second protrusions 33 constituting each of the first to third sets may be arranged at predetermined intervals in the circumferential direction on the cylindrical portion. In addition, eight first protrusions 31 are arranged at a predetermined interval in the circumferential direction at a distance L1 from the first opening 11, and 16 second protrusions constituting each of the first to third sets. 33 may be arranged at predetermined intervals in the circumferential direction in the cylindrical portion. Further, the intervals at which the 16 second protrusions 33 are arranged may not be the same.

  Similarly, the eight third projecting portions 35 constituting each of the first to third sets may be arranged at predetermined intervals in the circumferential direction on the cylindrical portion. In addition, eight first protrusions 31 are arranged at predetermined intervals in the circumferential direction at a distance L1 from the first opening 11, and the eight third protrusions constituting each of the first to third sets. 35 may be arranged in the cylindrical portion at a predetermined interval in the circumferential direction. Further, the intervals at which the eight third protrusions 35 are arranged may not be the same.

<Fifth Modification>
In the entangled component separating device 1 in the above-described embodiment, the rotation shaft 39 of the drum 10 is positioned inside the side wall of the drum 10 in parallel with the side wall of the drum 10, and the distance from the side wall of the drum 10 is constant. The case has been described as an example.

  The rotating shaft 39 of the drum 10 may be positioned outside the side wall of the drum 10 in parallel with the side wall of the drum 10. Further, the rotating shaft 39 of the drum 10 may be an axis that is not parallel to the side wall of the drum 10.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

<Appendix>
(1) The entanglement according to any one of claims 2 to 8, wherein the plurality of first protrusions are spaced apart from each other in a circumferential direction at a predetermined distance from the first opening of the drum. Parts separator.
(2) The plurality of first protrusions are arranged at intervals in a circumferential direction of a cylindrical region having a predetermined distance from the first opening of the drum. The entangled component separator according to any one of the above.
(3) The entangled component separation device according to any one of claims 1 to 8, wherein the rotation shaft is parallel to a side wall of the drum.
(4) The entangled component separation device according to (3), wherein the rotation shaft is located inside a side wall of the drum.
(5) The entangled component separation device according to (4), wherein the rotation shaft has a constant distance from a side wall of the drum.

  DESCRIPTION OF SYMBOLS 1 Tangled component separation apparatus, 10 drum, 11 1st opening part, 13 2nd opening part, 15 flange, 20 drive mechanism, 21 motor, 22 pulley, 23 drive belt, 24 1st roller, 25 2nd roller, 26 stopper , 26A shaft, 26B roller, 29 base, 31 first protrusion, 33 second protrusion, 35 third protrusion, 39 rotation axis.

Claims (5)

A cylindrical drum including a first opening serving as an introduction port for parts and a second opening serving as a discharge port for the parts;
A plurality of protrusions protruding from the side wall of the drum to the inside of the drum;
And a drive mechanism that rotates the drum about a rotation axis that intersects the direction of gravity in a state where the center of the first opening is higher than the center of the second opening.   2. The entanglement according to claim 1, wherein a distance between the end portions of the plurality of protrusions is set so that the parts do not simultaneously entangle with two or more of the plurality of protrusions as the drum rotates. Parts separator.   A plurality of parts including a plurality of parts entangled with other parts among the plurality of parts in a state in which a plurality of the parts are inserted into the drum from the first opening. The entangled component separation device according to claim 2, wherein a distance between the end portions of the plurality of protrusions is set so as to be entangled with two or more of the two at the same time.   The entangled component separation device according to any one of claims 1 to 3, wherein a minimum value of a distance between a plurality of ends of each of the plurality of protrusions is larger than a maximum value of the parts.   The entangled component separation device according to any one of claims 1 to 4, wherein an interval at which each of the plurality of protrusions is disposed on an inner wall of the drum is larger than a maximum length of the part.

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