JP2018090413A - Outflow control device for shaft-like component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cause a braking on a shaft-like component to act by a plurality of magnetic force suction portions, to prevent abnormal sliding that occurs due to a lengthy nature of the shaft-like component.SOLUTION: A guide chute 10 protruding from a storage box 8 of a shaft-like component 23 is constituted of a sliding plate 21 in an inclined position on which a shaft-like component 23 slides and vertical wall plates 10a provided on both sides of the sliding plate 21, and a plurality of magnetic force suction portions 27 are arranged at a tip portion of the sliding plate 21, and an interval between the adjacent magnetic force suction portions 27 is set so as to suck two portions of the shaft-like component 23. Then, a regulating wall plate 10b is constituted so that the vertical wall plate 10a protrudes from the tip portion of the sliding plate 21.SELECTED DRAWING: Figure 2

Description

  The present invention is in the field of controlling the supply of shaft-like parts such as bolts and rotary shafts, and is applied to, for example, a guide shooter installed between a storage box for small parts and a target location.

  It is known that a guide shooter protrudes from a storage box for small parts, and this guide shooter extends to a bowl or the like of a parts feeder to which small parts are supplied. Such a technique is described in JP2009-149447A.

JP 2009-149447 A

  The prior art described in Patent Document 1 is directed to an iron part such as a nut having a screw hole diameter of, for example, 6 mm and small vertical, horizontal, and thickness dimensions. Accordingly, the suction range by the magnet extends over the entire width of the guide shooter, and a large number of sucked nuts are squeezed between the left and right vertical wall plates of the guide shooter to control nut outflow.

  By the way, if the part is a long bolt, the movement of the bolt must be controlled by applying a magnet attractive force over the entire length of the bolt. However, in order to make the magnetic attractive force action area elongated in this way, it is necessary to prepare a specially shaped permanent magnet or electromagnet, and it is inevitable to increase the size of the magnet. There is a problem that it is difficult to make it easier. That is, forming the range of the attractive magnetic force according to the length of the bolt with a single magnet as described in Patent Document 1 is not suitable for a shaft-like component such as a bolt because the above problem occurs.

  On the other hand, since the shaft-like component is long, its length may cause a specific movement, and when it falls from the guide shooter, it may deviate from the target location. It is also necessary to cope with such behavior peculiar to the shaft-shaped part.

  The present invention is provided in order to solve the above-described problems. The abnormal falling caused by the longness of the shaft-like component is caused by applying braking to the shaft-like component in a stable state by a plurality of magnetic force attracting portions. It also aims to give a solution.

  The present invention is provided in order to solve the above-mentioned problems. The invention according to claim 1 is directed to a guide shooter protruding from a storage box for a shaft-shaped component, and an inclination for sliding the shaft-shaped component. It is composed of a sliding plate in a posture and vertical wall plates provided on both sides of the sliding plate. A plurality of magnetic suction portions are arranged at the tip of the sliding plate, and the interval between adjacent magnetic suction portions is 2 of the axial part. It is an outflow control device for a shaft-shaped part, which is set so as to suck a portion.

  When the longitudinal direction of the shaft-shaped component is the width direction of the sliding plate, the shaft-shaped component that has slid down the sliding plate is attracted to the two magnetic force attracting portions almost simultaneously by the two magnetic force attracting portions. Stop in the department. Further, when the longitudinal direction of the shaft-shaped component slides down along the longitudinal direction of the sliding plate, one end of the shaft-shaped component is attracted to one magnetic force suction portion, and the other end of the shaft-shaped component is centered on this suction location. The side moves in the arc direction, the other end side of the shaft-like component is sucked by the adjacent magnetic force attracting portion, and two portions of the shaft-like component are sucked.

  When one shaft-like part is in a state of suction at two places as described above, and the subsequent shaft-like part further slides down, the shaft-like part falls from the tip of the sliding plate due to its gravity. As described above, the shaft-like component is temporarily stopped at the tip of the sliding plate, so that the number of falls supplied to the bowl of the parts feeder is controlled so as not to be excessive. That is, for example, when stopping in a state where three or four shaft-shaped parts are gathered in the magnetic force attracting part, the gravity of the shaft-shaped part overcomes the magnet attracting force and falls from the end of the sliding plate. The supply is intermittently performed, whereby the number of supply is controlled.

  Said effect is ensured by utilizing the suction | attraction force effect | action of 2 places adapted to the characteristic of the long length of a shaft-shaped component.

  The invention according to claim 2 is configured such that the vertical wall plate is protruded from the tip portion of the sliding plate to constitute a regulating wall plate, and the shaft-shaped component in an abnormal direction is received by the regulating wall plate and dropped. A shaft component outflow control device according to claim 1.

  One end of a long shaft-shaped part is attracted to one magnetic force attracting part, and when the other end side of the shaft-shaped part moves in the arc direction around this attracting point, the other end is attracted to the adjacent magnetic force attracting part If so, there is no problem because two portions of the shaft-like component are sucked. However, when one end of the shaft-like component is attracted by the magnetic force attracting portion and the other end side further protrudes from the tip end portion of the vertical wall plate, there is a risk of falling to the outside of the full width region of the sliding plate. When such an abnormal fall occurs, the shaft-like component falls to a place deviated from a target place such as a bowl of a parts feeder, and thus a normal operation as an outflow control device cannot be obtained.

  Therefore, since the regulation wall plate is configured in a state in which the vertical wall plate protrudes from the tip end portion of the sliding plate, the shaft-like component protruding in an abnormal direction falls after being received by the regulation wall plate. Therefore, such a shaft-shaped part falls to the inside of the full width region of the sliding plate, and does not deviate from a target position such as a bowl of a parts feeder.

It is the side view and partial top view which show the whole apparatus. It is the top view and sectional drawing of the structure part which form a magnetic attraction part. It is a partial three-dimensional view of a guide shooter. It is a simple top view which shows the downhill behavior of a shaft-shaped component. It is a simplified top view which shows the other downhill behavior of a shaft-shaped component. It is a top view which shows arrangement | positioning of another magnetic attraction part. It is a three-dimensional view of a bolt.

  Below, the form for implementing the outflow control apparatus of the shaft-shaped components of this invention is demonstrated.

  1 to 7 show an embodiment of the present invention.

  First, the shaft-like component will be described.

  Examples of the shaft-like component include a long bolt and a rotating shaft. Here, it is the bolt 23 shown in FIG. The bolt 23 is composed of a shaft portion 24 with a male thread and a head portion 26 having a circular flange 25, and the diameter of the flange 25 is larger than the diameter of the shaft portion 24. The bolt 23 is made of iron. In each drawing other than FIG. 7, the illustration of the flange 25 is omitted, and the diameter of the head 26 is the same as that of the flange 25.

  Next, the entire outflow control device will be described.

  On the base 2 having the legs 1, a hopper device 4 that is made to be a vibration type similarly to the vibration type parts feeder 3 is fixed. The parts feeder 3 has a vibrating part 5 and a circular bowl 6, and applies a combined vibration in the circumferential direction and the vertical direction to the bowl 6. Is growing.

  The hopper device 4 will be described. A component storage box 8 is supported by a support column 9 that is firmly raised on the base 2, and a guide shooter 10 is installed to replenish the bowl 6 with components from the storage box 8. It is. As is clear from FIG. 3, the guide shooter 10 has a U-shaped cross section released upward, and is disposed with the vertical wall plates 10a standing on both sides of the inclined flat sliding plate 21. The sliding plate 21 is made of iron.

  The guide shooter 10 does not have a rigid coupling structure with the storage box 8 or the support column 9, and only the guide shooter 10 can vibrate. That is, as shown in FIG. 1, a gap 11 is formed between the storage box 8 and the guide shooter 10, and the guide shooter 10 itself is elastically held by the support rubber 12.

  The support rubber 12 is installed between the support base 13 welded to the support column 9 and the guide shooter 10 so that only the guide shooter 10 can vibrate. In order to vibrate the guide shooter 10, an electromagnetic vibrator 14 is installed. This is firmly fixed on the support base 13, and its output shaft 16 is connected to the guide shooter 10 via a bracket 17.

  As shown in FIGS. 1 and 2, the bottom plate 18 of the storage box 8 is inclined, and a parts outlet 19 is opened at the lower part thereof. In order to prevent parts from flowing out excessively, although not shown, a flexible restricting plate made of a material such as vinyl chloride is provided between the sliding plate 21 of the guide shooter 10. There is a passage for parts. By doing so, the bolt 23 is rubbed against the lower edge portion of the regulating plate and braked there, so that a large amount of the bolt 23 is not sent to the sliding plate 21 at a stretch.

  Next, the magnetic attraction unit will be described.

  The magnetic attraction portion means a region where a magnet attraction force is applied to the bolt 23 at the end of the sliding plate 21. A plurality of the magnetic attractive portions are formed for each magnet, and a plurality of magnetic attractive portions are arranged.

  FIG. 2A shows a state in which two magnetic force attracting portions 27 are arranged side by side on the end portion 22 of the sliding plate 21.

  An iron suction member 30 is welded to the end portion 22 of the sliding plate 21 via a connecting member 40. The suction member 30 is formed of a thick plate-like elongated member, and is arranged in a direction orthogonal to the longitudinal direction of the sliding plate 21, that is, the transfer direction of the bolt 23, as shown in FIG. . An end surface of the suction member 30 is a surface 31 of the suction member 30.

  The connecting member 40 is arranged in an elongated shape between the suction member 30 and the sliding plate 21, and is U-shaped as shown in FIG. 2 (A) and FIG. The connection member 40 is a nonmagnetic material, and is formed of, for example, stainless steel. The sliding plate 21 and the connecting member 40 are welded at a welded portion indicated by reference numeral 41. Further, the connection member 40 and the suction member 30 are welded at a weld portion indicated by reference numeral 42.

  Since the surfaces of the sliding plate 21, the connecting member 40, and the suction member 30 are smoothly continuous, the welded portions 41 and 42 on the front surface side are smoothly finished by a grinder process or the like. Furthermore, a smoother surface can be obtained by applying a highly abrasion-resistant coating thereon.

  An iron auxiliary member 43 having the same shape as the suction member 30 is welded to the back surface of the sliding plate 21 in parallel with the suction member 30. The distance between the members 30 and 43 is set to a predetermined dimension that matches the electromagnet 44 disposed therein. An electromagnet 44 is attached between the members 30 and 43, and the iron core 45 is in close contact with the inner surfaces of the suction member 30 and the auxiliary member 43 as shown in the figure. Reference numeral 48 denotes an electromagnetic coil.

  The iron core 45 of the electromagnet 44 is sandwiched between the inner surface of the suction member 30 and the inner surface of the auxiliary member 43, and both end surfaces of the iron core 45 are in close contact with the inner surfaces of the suction member 30 and the auxiliary member 43. ing. In order to ensure this close contact, the distance between the suction member 30 and the auxiliary member 43 is exactly matched with the length of the iron core 45, and the coupling bolt 46 penetrating the lower part of the suction member 30 and the auxiliary member 43 is connected to the suction member. 30 is screwed. The coupling bolt 46 is tightened to ensure the close contact of the iron core 45.

  When the electromagnet 44 is excited with a direct current, a magnetic force line 47 is formed from one N-pole or S-pole to the other S-pole or N-pole. This line of magnetic force 47 passes from the end of the iron core 45 to the other side of the iron core 45 through the suction member 30, the sliding plate 21, and the auxiliary member 43. In FIG. 2B, the magnetic force lines 47 are indicated by two-dot chain lines.

  Since the connection member 40 made of the nonmagnetic metal material is disposed, the magnetic field lines 47 are blocked at the connection member 40. Accordingly, when the iron bolt 23 moves on the sliding plate 21 and contacts the surface 31 of the suction member 30 and the surface 34 of the sliding plate 21, the magnetic lines 47 pass through the bolt 23. Thus, the bolt 23 is attracted to both surfaces 31 and 34. The circular member shown in the chain double-dashed line in FIG. 2B is the shaft portion 24. In this case, the shaft portion 24 is sucked.

  As described above, the suction region of the bolt 23 is formed by the surface 31 of the suction member 30 and the surface 34 of the sliding plate 21 in the vicinity of the connection member 40. This suction region is a region having a certain width along the connection member 40, and is a reverse concave-shaped region surrounded by a two-dot chain line in FIG. 2A. 27.

  Next, the arrangement of the magnetic suction unit will be described.

  In this embodiment, two sets of constituent members such as the suction member 30, the connection member 40, and the electromagnet 44 are arranged so that two magnetic suction portions 27 are formed. The interval between the magnetic attraction portions 27 adjacent to each other is set so as to attract two locations of the bolt 23. FIG. 2C is a plan view conceptually showing the state, in which two points are attracted in a state where adjacent magnetic force attracting portions 27 are bridged.

  In FIG. 6, a large number of five magnetic force attracting portions 27 are arranged on the wide guide shooter 10, and the interval between adjacent magnetic force attracting portions 27 is set so as to attract two locations of the bolts 23. With such a plurality of arrangements, a suction force can be applied to the three locations of the bolt 23.

  Next, the regulation wall plate will be described.

  If one end of the bolt 23 is attracted by the magnetic force attracting part 27 and the other end protrudes further from the tip part of the vertical wall plate 10a, there is a risk of falling to the outside of the full width region of the sliding plate 21. When such an abnormal fall occurs, the bolt 23 falls to the target location, that is, the location that deviates from the bowl 6 of the parts feeder 3, so that the normal operation as the outflow control device 100 cannot be obtained.

  When the bolt 23 is like the shaft portion 24 and the head portion 26 having a larger diameter, a specific movement phenomenon occurs. That is, the abnormal posture of the bolt 23 is that the end of the shaft portion 24 is attracted to the magnetic force attracting portion 27 located closest to the vertical wall plate 10a, and the head 26 rolls around this attracting location. Since the diameter of the head portion 26 is larger than the diameter of the shaft portion 24, the entire bolt 23 is moved in the arc direction, that is, the movement path of the sector shape is moved. When such a movement is made vigorously, the head 26 passes through the magnetic attraction part 27 by inertia without being attracted by the adjacent magnetic attraction part 27 and protrudes from the end 22 of the sliding plate 21 to form an arc. It moves and moves toward the outside of the entire width region of the sliding plate 21, falls as it is, escapes from the bowl 6, and falls to the outside.

  In order to prevent such an abnormal fall, the vertical wall plate 10a is protruded from the tip of the sliding plate 21 to form the restriction wall plate 10b, and the abnormally oriented shaft part is received by the restriction wall plate 10b. Drop it. The regulation wall plate 10b is obtained by extending the vertical wall plate 10a or adding another plate material by welding or the like, and the two-dot chain line in FIGS. 2B and 3 is the vertical wall plate 10a and the regulation wall plate. The boundary line 28 is 10b. In this way, the bolt 23 is dropped by the regulating wall plate 10b in a state where the bolt 23 exists in the entire width region of the sliding plate 21. Therefore, the bolt 23 reliably falls into the bowl 6 and normal bolt supply is realized.

  Next, the bolt outflow operation will be described.

  First, the outflow operation shown in FIG. 4 will be described. FIG. 2A shows a case where the longitudinal direction of the bolt 23 is moved along the sliding down direction of the sliding plate 21 due to the vibration of the vibrator 14. When the bolt 23 is lowered as it is, the end portion of the shaft portion 24 is attracted to the left magnetic force attracting portion 27 as shown in FIG. When the vibrator 14 is moved by the vibration of the vibrator 14, the head 26 moves in the arc direction while rolling, and the head 26 is attracted to the adjacent magnetic force attracting part 27. In this way, as shown in FIG. 5C, the bolt 23 is attracted to and stopped by the adjacent magnetic force attracting portions 27.

  By continuing such bolt movement, as shown in FIG. 4D, the bolt stops in a state where three or four bolts 23 are gathered in the magnetic attraction portion. The gravity of the bolt 23 overcomes the magnet attractive force and falls from the end of the sliding plate. After that, when a similar bolt set is formed, it falls again. By repeating such a process, the bolts 23 are intermittently supplied to the bowl 6, thereby controlling the number of supply.

  Further, when the longitudinal direction of the bolt 23 is the width direction of the sliding plate 21, the two locations of the bolt 23 are attracted to the two magnetic force attracting portions 27 almost simultaneously and stop at the tip end portion of the sliding plate 21. Subsequent operations are the same as those described above.

  Next, the outflow operation shown in FIG. 5 will be described. As shown in FIG. 5 (A), when the bolt 23 in the direction transverse to the sliding plate 21 is lowered, the diameter of the head portion 26 is larger than the diameter of the shaft portion 24. Move in the arc direction. When such movement proceeds, as shown in FIG. 4B, the magnetic suction portion 27 adjacent to the vertical wall plate 10a is sucked near the end of the shaft portion 24, and the head is in a posture with the head facing downward. . Further, when the circular arc movement advances inertially, the head 26 is received by the inner surface of the regulating wall plate 10b as shown in FIG. In this state, the bolt 23 protrudes greatly from the end 22, so that it cannot stay there and falls into the bowl 6. The regulation wall plate 10b prevents the bolt 23 from protruding from the extended region of the width of the sliding plate 21, so that such a normal fall occurs.

  The operational effects of the embodiment described above are as follows.

  When the longitudinal direction of the bolt 23 is the width direction of the sliding plate 21, the bolt 23 that has slid down the sliding plate 21 is attracted to the two magnetic force attracting portions 27 at approximately the same time. Stop at the tip. When the longitudinal direction of the bolt 23 slides down along the longitudinal direction of the sliding plate 21, one end of the bolt 23 is attracted to one magnetic force attracting portion 27, and the other end side of the bolt 23 is centered on this attracting location. It moves in the arc direction, the other end side of the bolt 23 is attracted to the adjacent magnetic force attracting part 27, and two locations of the bolt 23 are attracted.

  When one bolt 23 is in a state of attraction at two locations as described above, and the subsequent bolt 23 further slides down there, the total gravity exceeds the magnet attraction force, and the bolt 23 is at the tip of the sliding plate 21. Fall from the department. In this way, the bolt 23 is temporarily stopped at the tip of the sliding plate 21 so that the number of falling supplies to the bowl 6 of the parts feeder 3 is controlled so as not to be excessive. That is, for example, when stopping in a state where three or four bolts 23 are gathered in the magnetic force attracting portion 27, the gravity of the bolt 23 overcomes the magnet attracting force and falls from the end of the sliding plate. Thus, the number of supply is controlled.

  The above-described operation and effect are ensured by utilizing two suction force operations adapted to the long length characteristics of the bolt 23.

  The vertical wall plate 10a is protruded from the tip of the sliding plate 21 to constitute the regulating wall plate 10b, and the bolt 23 having an abnormal orientation is received by the regulating wall plate 10b and dropped.

  When one end of the long bolt 23 is attracted to one magnetic force attracting part 27 and the other end side of the bolt 23 moves in the arc direction around this attracting point, the other end is attracted to the adjacent magnetic attracting part 27. If so, there is no problem because two places of the bolt 23 are sucked. However, when one end of the bolt 23 is attracted by the magnetic force attracting portion 27 and the other end side vigorously moves in the arc direction and further protrudes from the tip end portion of the vertical wall plate 10a, it goes to the outside of the full width region of the sliding plate 21. There is a risk of falling. When such an abnormal fall occurs, the bolt 23 falls to a location where the bolt 3 of the parts feeder 3 has deviated from the bowl 6, so that the normal operation as the outflow control device 100 cannot be obtained.

  Therefore, since the regulation wall plate 10b is configured with the vertical wall plate 10a protruding from the tip of the sliding plate 21, the bolt 23 protruding in an abnormal direction is received by the regulation wall plate 10b. Fall. Therefore, such a bolt 23 falls to the inside of the full width region at the extension destination of the sliding plate 21 and does not deviate from the bowl 6 of the parts feeder 3.

  Since a plurality of magnetic suction portions 27 are arranged in the width direction of the sliding plate 21 at the end portion of the sliding plate 21, the dimensions of the suction member 30 employed therein are, for example, as shown in FIG. It becomes possible to arrange in a miniaturized form. By doing so, the electromagnet 44 assembled for each attraction member 30 can be reduced in size, and the structural unit in the magnetic attraction unit 27 of the apparatus 100 is made compact. In the case of an elongated suction member having a large width as described in the above-mentioned Patent Document 1, in order to generate a magnet suction force on the entire suction member, it is actually necessary to specially produce a special electromagnet separately. is there. However, in the present embodiment, a small electromagnet that is a standard product can be adopted, so that the above advantages can be ensured.

  As described above, the present invention makes it possible to apply braking to the shaft-like component in a stable state by a plurality of magnetic force attracting portions, and to provide a solution for abnormal falling caused by the longness of the shaft-like component. It can be used in a wide range of industrial fields such as the assembly process of automobile transmissions.

8 Storage Box 10 Guide Shooter 10a Vertical Wall Plate 10b Regulating Wall Plate 21 Sliding Plate 22 End 23 Bolt 24 Shaft 25 Flange 26 Head 27 Magnetic Suction Part 30 Suction Member 31 Surface 34 Surface 40 Connection Member 43 Auxiliary Member 44 Electromagnet 45 Iron core 47 Magnetic field line 100 Outflow control device

Claims (2)

  The guide shooter that protrudes from the storage box for the shaft-shaped component is composed of a sliding plate in an inclined posture in which the shaft-shaped component slides, and vertical wall plates provided on both sides of the sliding plate. An outflow control device for a shaft-like component, wherein the magnetic force-sucking portions are arranged, and the interval between adjacent magnetic force suction portions is set so as to suck two portions of the shaft-like component.   2. The shaft-shaped component according to claim 1, wherein the vertical wall plate is protruded from a tip portion of the sliding plate to constitute a regulating wall plate, and the shaft-shaped component having an abnormal orientation is received by the regulating wall plate and dropped. Spill control device.

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