JP6451995B2 - Protruding parts passage member and parts feeder - Google Patents

Description

  The present invention relates to a passage member in which a projecting component is smoothly transferred, and a parts feeder using the passage member.

  Japanese Patent No. 4984305 describes a square projection nut passage member provided with welding projections at four corners, and an oversized projection nut is tumbled from a discharge port formed in the passage member. In the following description, the projection nut may be simply expressed as a nut.

Japanese Patent No. 4984305

  The component described in the above-mentioned patent document is a projection nut having a square shape when viewed in plan, a screw hole formed in the center thereof, and welding projections formed at four corners. The nut having such a shape is transported along the inner peripheral surface of the bowl or guided by the groove of the passage member having the discharge port, so that the nut rotation direction remains unchanged. Is done. Therefore, since the welding projection of the nut passes across the discharge port, the welding projection does not enter the space of the discharge port.

  However, when the projection nut can change the direction of rotation during the transfer, the welding projection enters the space of the discharge port, so the welding projection is at the inner end of the discharge port on the delivery direction side. As a result, the nuts cannot be smoothly transferred.

  The present invention is provided in order to solve the above-described problems, and even if the protruding member on the lower surface of the component enters the space of the discharge port, it does not get caught in the inner end of the discharge port on the delivery direction side. It is an object of the present invention to provide a passage member for a component with protrusions and a parts feeder using the passage member.

The invention described in claim 1
Projection members such as welding projections for electrical resistance welding and positioning projections for mounting positioning are formed on the lower surface, and parts with projections whose direction of rotation changes on the conveyance path plate are targeted for delivery,
The passage member arranged in a continuous manner with the conveying passage plate has at least a bottom surface, a lateral inner surface standing on both sides of the bottom surface, and a width dimension for dropping an undersized component having a normal dimension or less. And a guide surface that slides normal-sized parts on both sides of the outlet.
An inclined surface for preventing the protruding member from catching on the inner end of the discharge port on the delivery direction side is provided on the inner end of the discharge port on the delivery direction side or the guide surface in a state where the delivery direction side is raised. It is the channel | path member of the component with a protrusion characterized by these.

  A hexagonal nut is integrated with a circular flange, and three flanged protrusions are provided on the lower surface of the outer periphery of the flange at intervals of 120 degrees, and a positioning protrusion inserted into the receiving hole of the counterpart part When a projecting part such as a circle or an octagon provided with is transferred on the transport passage plate, the direction is changed in the rotational direction during the transfer.

  When the protruding part that has been transferred in this state reaches the discharge port, the welding protrusion and positioning protrusion on the delivery direction side enter the space of the discharge port, and the entire part with projection is low on the delivery direction side. Proceeds in a tilted state. Thus, the protruding member that has entered the discharge port space reaches the inclined surface formed at the inner end of the discharge port on the delivery direction side and is lifted while sliding on the inclined surface. It returns to the posture and is transferred to the downstream side of the discharge port in a normal posture.

  Since the inclined surface is slid as described above, the projecting member is smoothly transferred without being caught by the inner end of the discharge port on the delivery direction side. If the protruding part is an undersized part, it falls from the outlet, so that only the normal-sized protruding part is transferred backward. Therefore, even if the component with the protrusion changes its direction in the rotation direction during the transfer, it is possible to solve the problem caused by being caught on the inner end of the discharge port in the sending direction.

  The operational effect described above is a case where an inclined surface is formed at the inner end of the discharge port in the delivery direction, but the inclined surface in the present invention is a normal size component arranged on both sides of the discharge port. It can also be formed on the guide surface. When the normally sized projecting part is transferred, both sides of the part are lifted upward when sliding on the inclined surface, so that the projecting member escapes upward from the outlet space. With such a behavior, the protruding member passes through a position where it cannot interfere with the inner end of the discharge port in the delivery direction, so that the component with the protrusion is smoothly transferred rearward.

The invention according to claim 2
An arc-shaped delivery path formed by the conveying path plate is formed in a circular bowl storing the protruding parts, and the bowl is of a type that feeds and feeds the bowl with a delivery vibration. 1 is a parts feeder in which the passage member according to 1 constitutes a part of the delivery passage.

  Therefore, no matter what the rotation direction of the protruding part is transferred through the delivery passage, the undersized part is eliminated and only the normal size protruding part is transferred backward. In this way, a parts feeder is obtained in which a normal-sized part with protrusions is reliably transferred rearward.

  The present invention is a passage member and a parts feeder for a projecting part as described above, but, as is apparent from the examples described below, exists as a method invention that identifies posture correction of the projecting part during transportation, etc. Can be made.

It is the top view of a parts feeder, and sectional drawing of the principal part. It is the top view and sectional drawing of a channel member. It is the top view and sectional drawing of another channel | path member. It is the top view and sectional drawing of another channel member. It is a fragmentary sectional view showing a catch state. It is the side view and top view which show other components with a protrusion.

  Below, the form for implementing the channel | path member and parts feeder of the component with a protrusion of this invention is demonstrated.

  1 to 6 show an embodiment of the present invention.

  As long as the path member of the projecting part is a part conveyance path structure part, it can be used in various device fields such as a linear feeder and a parts feeder. ing.

  First, the parts feeder will be described.

  FIG. 1A is a plan view of the parts feeder 1, and a BB cross-sectional view thereof is FIG. The circular bowl 2 is constituted by an outer wall plate 3 and a bottom plate 4, and a circular inner wall plate 5 is arranged inside. These outer wall plate 3, bottom plate 4, inner wall plate 5 and the like are integrated by welding as shown in the figure. An arcuate conveyance path plate 6 is welded to the outer peripheral surface of the inner wall plate 5. The conveyance path plate 6 has a shape protruding in a bowl shape from the inner wall plate 5, and the conveyance path plate 6 forms a delivery path 7 of the parts feeder 1.

  The inner space of the inner wall plate 5 serves as a storage part 8 for a projecting part, which will be described later, and the projecting part exiting the storage part 8 is transported on the transport path plate 6. The conveyance passage plate 6 has a spiral shape whose height gradually increases in the counterclockwise direction, and is provided with an inclination that the inner wall plate 5 side is lowered. The inner wall plate 5 stands up in the vertical direction.

  Although not shown in the figure, a vibration generating unit for applying a combined vibration in the vertical direction and the circumferential direction is arranged on the lower side of the bowl 2 so that the projecting parts are conveyed counterclockwise on the conveyance path plate 6. It has become.

  When the protrusion-equipped component is in an abnormal posture in the back or vertical direction and is transported through the transport path plate 6, it is sorted by the fall structure portion 9 and falls from the transport path plate 6. In order to cause this fall, a fall space 10 is formed between the outer peripheral end of the transport passage plate 6 and the inner surface of the outer wall plate 3. The falling structure portion 9 is a structure that is generally put into practical use in which the width of the transport passage plate 6 is partially narrowed or the exclusion bar is welded to the inner wall plate 5.

  Next, components with protrusions will be described.

  The protrusion-equipped component has a plurality of protrusion members such as a welding protrusion for electric resistance welding and a positioning protrusion for attachment positioning formed on the lower surface, and the direction thereof is changed in the rotation direction on the conveyance path plate 6. The projection-equipped component shown in FIGS. 1 and 2 is a projection nut 12. The nut 12 has a hexagonal body 13 and a circular flange 14 integrated with each other, and a screw hole 15 is formed at the center. On the lower surface 16 of the nut 12, three welding projections 17 are provided near the outer peripheral side of the lower surface 16 at intervals of 120 degrees.

  FIG. 6 shows the case of the positioning projection 18. Four positioning protrusions 18 are formed on the lower surface 20 of the circular component 19 at intervals of 90 degrees. A receiving hole 22 is formed in the counterpart component 21, and the positioning projection 18 is inserted therein.

  The welding protrusion 17 and the positioning protrusion 18 are collectively expressed as a “protruding member”. When the nut 12 and the component 19 slide on the conveyance path plate 6 with the welding projection 17 and the positioning projection 18 facing down, the flange 12 and the component 19 are circular. The direction changes in the direction of rotation. Further, even if the part is not a circle like the flange 12 or the part 19 but is, for example, an octagonal or elliptical part, the direction may be changed in the rotational direction.

  As shown in FIG. 1A, the normal size part is a nut 12, and the undersized part is a square projection nut 24.

  Next, the passage member will be described.

  The passage member 25 is arranged in a state of being continuous with the conveyance passage plate 6 and fulfills a function of eliminating oversized parts. The passage member 25 shown in FIGS. 1 and 2 is obtained by machining a thick stainless steel plate material by machining, and stands at least in a state parallel to both the bottom surface 26 and both sides of the bottom surface 26. There are provided a lateral inner surface 27, a discharge port 28 having a width W for dropping an undersized component below the normal size and opening in the bottom surface 26, and guide surfaces 29 for sliding normal-sized components on both sides of the discharge port 28. ing. The bottom surface 26 is smoothly connected to the transport passage plate 6.

  By forming such a passage member 25, when the excessively small nut 24 as shown in FIG. 1A is transferred, the nut 24 cannot straddle the left and right guide surfaces 29, and the nut 24 Falls to the discharge port 28 from either the left or right side, and backward conveyance is prohibited.

  Near the end of the conveyance path plate 6, a protruding member 23 that prevents the flange 14 from floating is welded to the inner wall plate 5. The protruding member 23 is provided with a lateral groove 32 through which the flange 14 passes. And the plate-shaped gauge member 30 is welded between the conveyance passage plate 6 and the passage member 25, and only the normal size nut 12 is allowed to pass therethrough, and the passage for preventing the passage of an excessively large nut or an irregularly shaped part. An opening 31 is opened. Since the nut 24 shown in FIG. 1A has an undersized shape, it passes through the passage opening 31.

  A carry-out member 33 is connected to the end portion on the downstream side of the passage member 25. The nut 12 transferred to the carry-out member 33 is supplied toward the target location. The carry-out member 33 may be a tubular member having a rectangular cross section, but here, it is a U-shaped member opened upward.

  The normal-sized nut 12 that has fallen from the conveying passage plate 6 in a reverse orientation or the like is returned to the storage unit 8 from the passage port provided in the inner wall plate 5, but the undernut 24 that has fallen from the discharge port 28 is conveyed again. In order not to return to the passage plate 6, it is accommodated in the confinement box 34.

  Next, the inclined surface will be described.

  The inclined surface has a function of preventing projection members such as a plurality of formed welding projections 17 for electric resistance welding and positioning projections 18 for attachment positioning from being caught on the inner end of the discharge port 28 in the delivery direction. Fulfill.

  One example of the inclined surface is when it is formed at the inner end of the discharge port 28 in the delivery direction. As shown in FIGS. 2 and 1, an inclined surface 36 is provided at the inner end of the discharge port 28 in the sending direction so as to be inclined so that the sending direction side becomes higher. The inclined surface 36 is formed by obliquely finishing the inner end of the discharge port 28 in the delivery direction since the bottom surface 26 is made of a thick plate. Further, since the inner end of the discharge port 28 in the sending direction is arcuate, the inclined surface 36 is arcuate along the arcuate surface 36. Further, as shown in FIGS. 2B and 2C, the inclined surface 36 is a straight inclined surface when viewed in cross section.

  The passage member 25 described above is obtained by machining a thick stainless steel plate by machining, but instead, it can be made of a steel plate material as shown in FIG. The inclined surface 36 is composed of a tongue-like member bent downward. The other configuration is the same as that of the previous example including a portion not shown, and the same reference numerals are described for members having similar functions.

  Further, another example of the inclined surface is a case where the inclined surface is formed on the guide surface 29. As shown in FIG. 3, the inclined surface 37 is formed in a state where the delivery direction side becomes higher from the middle of the guide surface 29.

  As shown in FIG. 5, the catching on the inner end of the discharge port 28 in the delivery direction means that the welding protrusion 17 (or positioning member 17) is positioned on the end inner surface 38 of the discharge port 28 in the vertical direction. This means that the protrusion 18) hits, and therefore the part with protrusion cannot advance.

  Next, the movement behavior of the component with protrusions will be described.

  When the nut 12 moves on the conveyance path plate 6, the outer peripheral portion of the flange 14 rolls while contacting the inner wall plate 5, and the welding projection 17 sinks the gauge member 30 while changing its position. It is removed and transferred to the bottom surface 26 of the passage member 25.

  Thereafter, with both sides of the flange 14 straddling the discharge port 28 and resting on the guide surface 29, as shown in FIG. 2 (B), the flange 14 is inclined so that the advancing direction side is lowered, and the advancing direction side The welding protrusion 17 enters the space of the discharge port 28. When the nut 12 advances in this posture and the welding projection 17 entering the space of the discharge port 28 is pressed against the inclined surface 36 and slides, the flange 14 is inclined as shown in FIG. It is lifted along the surface 36 and finally transferred toward the carry-out member 33 in a horizontal posture as shown by a two-dot chain line in FIG.

  When the flange 14 is transported in a state where both sides of the flange 14 are placed on the guide surface 29, the welding projection 17 slides on the guide surface 29 on one side and the flange 14 on the other side depending on the direction of the rotation direction of the flange 14. Therefore, the flange 14 is inclined in both the width direction and the advance direction of the discharge port 28.

  Also, in the case of the circular component 19 shown in FIG. 6, it is prevented from being caught on the inner end (end inner surface 38) of the discharge port 28 by the same operation as the nut 12. In the case of the component 19, although not shown, the shape of the passage opening 31 of the gauge member 30 is changed to a shape suitable for the component 19.

  On the other hand, when the inclined surface 37 formed on the guide surface 29 is utilized, both sides of the flange 12 of the nut 12 that has moved are lifted along the inclined surface 37, and the welding protrusion 17 is located inside the discharge direction side of the discharge port 28. It passes over the end (end inner surface 38) and is transferred to the carry-out member 33. For this reason, the welding protrusion 17 is prevented from being caught on the inner end (end inner surface 38) of the discharge port 28 in the delivery direction.

  Also in the case of the circular component 19 shown in FIG. 6, the positioning projection 18 is prevented from being caught on the inner end (end inner surface 38) of the discharge port 28 in the same manner as the nut 12.

  The passage member 25 is connected to the end portion of the conveyance passage plate 6. Instead, it is arranged in the middle of the conveyance passage plate 6 as shown by a two-dot chain line in FIG. Is also possible.

  The parts feeder 1 described above is of a type that vibrates the bowl 2, but instead of this, a magnet is assembled to an upright rotating disk and the parts adsorbed by the rotation of the disk are guided to the delivery passage. Can be.

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

  A circular flange 14 is integrated with a hexagonal nut, and a projection nut 12 in which three welding projections 17 are provided on the lower surface 16 on the outer peripheral side of the flange 14 at intervals of 120 degrees, and a receiving hole 22 for a counterpart component 21. When a part 19 such as a circle or an octagon provided with positioning protrusions 18 to be inserted into is transported on the transport passage plate 6, the direction is changed in the rotational direction during the transport.

  When the protruding parts 12 and 19 transferred in such a state reach the discharge port 28, the welding protrusion 17 and the positioning protrusion 18 on the delivery direction side enter the space of the discharge port 28, and the protrusions are provided. The parts 12, 19 as a whole proceed in an inclined state where the delivery direction side is lowered. Thus, the protruding members 17 and 18 that have entered the discharge space reach the inclined surface 36 formed at the inner end (end inner surface 38) of the discharge port 28 in the sending direction, and lift the sliding surface 36 while sliding. Then, the inclined postures of the parts with projections 12 and 19 return to the horizontal posture, and are transferred to the downstream side of the discharge port 28 in a normal posture.

  Since the inclined surface 36 is slid as described above, the nut 12 is smoothly transferred without being caught by the inner end of the discharge port 28 in the delivery direction. If the part is an undersized part such as a square nut 24, it falls from the discharge port 28, so that only the normal size nut 12 is transferred backward. Therefore, even if the nut 12 changes its direction in the rotation direction during the transfer, the problem caused by catching on the inner end (end inner surface 38) of the discharge port 28 in the delivery direction can be solved.

  The operation and effect described above is the case where the inclined surface 36 is formed at the inner end of the discharge port 28 in the delivery direction, but it is arranged on both sides of the discharge port 28 like the inclined surface 37 in this embodiment. It is also possible to continuously form the normal size part guide surface 29. When the normal-sized nut 12 is transferred, both sides of the flange 14 are lifted upward when sliding on the inclined surface 37, whereby the protruding members 17 and 18 escape upward from the outlet space. . Due to such behavior, the protruding members 17 and 18 pass through an upper position where they cannot interfere with the inner end portion (end inner surface 38) of the discharge port 28, so that the protruding parts 12 and 19 are smoothly transferred rearward. The

  An arc-shaped delivery passage 7 formed by the transport passage plate 6 is formed in the circular bowl 2 storing the projecting parts 12 and 19, and the bowl 2 is fed with delivery vibration and sent out. The parts feeder 1 is configured such that the passage member 25 constitutes a part of the delivery passage 7.

  Therefore, no matter what rotational direction the projecting parts 12, 19 are transported through the delivery passage 7, the underpart 24 is eliminated and only the normal-sized projecting parts 12, 19 are transported rearward. . In this way, an excellent parts feeder 1 is obtained in which the normal-sized protruding parts 12 and 19 are reliably transferred rearward.

  As described above, according to the present invention, there is provided a passage member for a protrusion-equipped component that does not catch on the inner end of the discharge port even when the protrusion member on the lower surface of the component enters the space of the discharge port. This is a parts feeder that uses Therefore, it can be used in a wide range of industrial fields, such as an automobile body assembly process and a home appliance sheet metal assembly process.

DESCRIPTION OF SYMBOLS 1 Parts feeder 2 Bowl 6 Conveyance passage plate 7 Delivery passage 12 Projection part 12, Projection nut 14 Flange 16 Lower surface 17 Welding projection 18 Positioning projection 19 Component 20 Lower surface 25 Path member 26 Bottom surface 27 Horizontal inner surface 28 Discharge port 29 Guide surface 36 Inclined surface 37 Inclined surface 38 Inner end of delivery direction side, end inner surface W Width dimension

Claims (2)

Protruding members such as welding protrusions for electric resistance welding and positioning protrusions for mounting positioning are formed on the lower surface, and parts with protrusions that can change the direction of rotation on the conveyance path plate are targeted for delivery ,
The passage member arranged in a continuous manner with the conveying passage plate has at least a bottom surface, a lateral inner surface standing on both sides of the bottom surface, and a width dimension for dropping an undersized component having a normal dimension or less. And a guide surface that slides normal-sized parts on both sides of the outlet.
An inclined surface for preventing the protruding member from catching on the inner end of the discharge port on the delivery direction side is provided on the inner end of the discharge port on the delivery direction side or the guide surface in a state where the delivery direction side is raised. A passage member for a component with protrusions.   An arc-shaped delivery path formed by the conveying path plate is formed in a circular bowl storing the protruding parts, and the bowl is of a type that feeds and feeds the bowl with a delivery vibration. A parts feeder in which the passage member according to 1 constitutes a part of the delivery passage.

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