JPH08113350A - Orderly feeding device for ring shaped parts - Google Patents

Abstract

PURPOSE: To provide an orderly feeding device capable of feeding ring shaped parts assuredly and efficiently to the next process one by one. CONSTITUTION: A congestion sensor 71, which is provided on a vibration trough 61 of a rectilinear vibration parts feeder, which is tilted downwards to one side in the transferring direction and consisting of a side wall plate 67, having a height equal to the thickness of a thin ring part R, on its tilted bottom end, removes parts M congested by air blow from air jet nozzles 83, 84, 103, etc., by detecting transfer congestion caused by overflow or contacting overlap exclusion pin 91 and also removes reversed parts M by upward air blow from air jet nozzles 68a, 68b, etc., on the outer surface of the side wall plate 67. Parts M are fed to the next process one by one with their right side facing upward by an individual feeding mechanism which is composed of a first stopper pin 121, a second stopper pin 131, a presence detecting sensor 141 and a feeding stage 150.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding device for thin plate ring-shaped parts, and more particularly to a device for feeding thin plate ring-shaped parts one by one in a predetermined direction to the next step.

[0002]

2. Description of the Related Art A and B of FIGS. 1A and 1B are views of two types of circular springs having different sizes, which are specific examples of thin plate ring-shaped parts. It has three protrusions that are arranged and project to one side. The small-diameter circular spring m shown in A of FIG.
Has an outer diameter d of 14 mmφ, a thickness s of 0.1 mm, a height h of the protrusion q from the bottom surface of 0.4 mm, and a width w of the thin plate ring portion r. In the circular spring M having a diameter, the thin plate ring portion R has a diameter D of 17 mmφ and a thickness S of 0.15.
mm, the height H of the protrusion R from the bottom is 0.45 mm, and the width W of the thin plate ring R is provided. In FIGS. 1A and 1B, the projections q and Q are drawn larger than the actual ratio in order to clearly show them. The circular springs M and m as thin plate ring-shaped parts have a high surface finishing accuracy and are mirror-finished.
When the transfer surface of the vibrating parts feeder has high surface accuracy, it may not be transferred smoothly even if vibration is applied, as if it were in close contact with each other like two glass plates with water interposed. Then, as shown in FIG. 1, there is a demand to supply the two types of circular springs having different sizes to the next process one by one in a face-up posture with the protrusions q and Q facing upward.

Regarding the feeding of thin plate-shaped articles, the "sheet feeding apparatus for thin plate-like articles" of Japanese Patent Application No. 6-156681 filed by the present applicant is composed of a torsional vibration parts feeder and a linear vibration parts feeder. Disclosed is a feeding device for feeding thin-plate articles as a single layer or a single row to the next process by a notch provided on a track of a torsional vibration parts feeder and a ridge provided on a trough of a linear vibration parts feeder. There is.
However, this feeding device utilizes the fact that when the thin plate-shaped articles that are excessively transferred to the trough of the linear vibration parts feeder overlap, the thin plate-shaped article in the upper layer slides over the ridges. Since the article is a single layer or a single row, the article cannot be expected to be a single layer by sliding down, for example, a circular spring having protrusions as shown in FIG. The number of thin plate-like articles to be supplied from the discharge end to the next step is determined by the delivery time, and there is no special mechanism for accurately determining the number of sheets to be supplied. The reliable supply of is not guaranteed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and generally an object of the present invention is to provide a feeding device capable of surely supplying the ring-shaped parts one by one to the next step.

[0005]

[Means for Solving the Problems] In the feeding device for a ring-shaped component for transferring a ring-shaped component by vibrating a linear trough in a straight line, the discharge end of the trough is provided on the upstream side. A first stopper pin that is provided so as to be proximate to the bottom surface of the trough so as to vertically project and retract from above, and to the upstream side from the first stopper pin, the outer diameter of the ring-shaped component is larger than twice the outer diameter. A second stopper pin that is provided so as to vertically project and retract from the bottom surface of the trough or from above with a small distance, component detection means provided in the vicinity of the first stopper pin, and the first and second The first and second drive parts are driven by a detection signal of the component detection means to independently drive the first and second stopper pins. Drive up and down Seioku device of the ring-shaped parts, characterized in that the so that is achieved by.

Further, the above-mentioned object is a feeding device for a thin plate ring-shaped component having a plurality of protrusions on one side along the inner circumference of the thin plate ring portion, and is inclined downward to one side in the transfer direction. Linear vibration in which a trough having a height that is equal to or less than the thickness of the thin plate ring portion and has a thickness smaller than the width of the thin plate ring portion and that has the downwardly inclined lower end side wall linearly vibrates. A stagnation detection sensor arranged near the transfer surface for detecting stagnation of transfer of the thin plate ring-shaped parts, and a stagnation of transfer due to overflow, etc. A first air ejection hole opened at or near the transfer surface for ejecting air on the upstream side of the stagnation detection sensor to remove the thin plate ring-shaped component on the transfer surface, At a distance from the side wall in a direction perpendicular to the transfer direction, which is smaller than the outer diameter of the thin plate ring portion and the outer diameter is larger than a value obtained by subtracting the width of the thin plate ring portion, immediately above the transfer surface. Detecting stagnation of transfer due to the overlap exclusion pin hanging with a gap slightly larger than the thickness of the thin plate ring part and the upper layer of the thin plate ring-shaped component that is transferred overlapped and stopped in contact with the overlap exclusion pin When ejected, the second air ejection hole opened on the transfer surface for ejecting air on the upstream side close to the overlap eliminating pin to eliminate the overlapped thin plate ring-shaped component, and the protrusion on the side wall. Is in contact with the outer surface of the side wall for eliminating the back-facing thin plate ring-shaped component that causes the thin plate ring portion to protrude to the outside of the side wall, and is constantly opened to eject air constantly. A third air ejection hole is provided, and at the downstream side portion of the trough, the thin plate is provided in the transfer direction at a distance from the side wall in a direction perpendicular to the transfer direction at a distance substantially equal to the radius of the thin plate ring portion. Presence or absence of the upstream and downstream stoppers, which are larger than the outer diameter of the ring portion and spaced apart by less than twice, and the thin plate ring-shaped component, which is arranged on the upstream side near the downstream stopper. A component presence / absence detection sensor for detecting the presence of a sheet and a supply stage for the next process are provided, and the overlapping thin plate ring-shaped component and the face-down thin plate ring-shaped component are removed and transferred to the downstream portion. From the state where the thin plate ring-shaped component is stopped by the stopper on the downstream side at the stop position,
The thin plate ring-shaped component stopped at the downstream side by setting the downstream stopper to the stop release position and the upstream stopper at the stop position when the thin plate ring-shaped component is not present on the supply stage. After being transferred to the supply stage, the downstream side stopper is set to a stop position and the upstream side stopper is set to a stop release position after the part presence / absence detection sensor confirms the absence of the thin plate ring-shaped part,
The subsequent thin plate ring-shaped component stopped by the upstream stopper is transferred and stopped by the downstream stopper,
Next, after confirming the presence of the subsequent thin plate ring-shaped component in which the component presence / absence detection sensor is stopped, the upstream stopper is brought to the stop position, during which the thin plate ring-shaped component is picked up from the supply stage. This cycle is repeated and the cycle of eliminating nothing is repeated, and the thin plate ring-shaped components having no overlap and faced up are supplied one by one to the next step.

[0007]

The leading component is stopped at the component stop position of the first stopper pin and waits for supply to the next process. Subsequent parts stop by contacting the rear end of the leading part. At the request of the next process, the first stopper pin moves to the stop release position, and the leading part is linearly fed to the next process. The second stopper pin moves to the component stop position and the subsequent component is stopped. Since it is ring-shaped, it protrudes into the ring opening,
It abuts the inner diameter and stops any further movement. When the component detection means detects that the leading component is supplied to the next process, the first stopper pin moves to the stop position, and the second stopper pin moves to the second position.
The stopper pin moves to the stop release position. Therefore, it moves forward, is stopped by the first stopper pin, and waits for a request from the next process.

According to the eleventh aspect of the invention, the thin plate ring portion is inclined downward to one side in the transfer direction and has a height equal to or lower than the thickness of the thin plate ring portion of the thin plate ring-shaped component to be transferred. The thickness of the thin plate ring-shaped component that is supplied to the upstream end of the trough of the linear vibration parts feeder that has a side wall on the lower end that is inclined downward and has a thickness smaller than the width of the trough When detected by the stagnation detection sensor, the jetted air from the first air jet holes opening on the upstream transfer surface of the stagnation detection sensor eliminates the thin plate ring-shaped component in an overflow state, and the thin plate ring-shaped component to be transferred in an overlapping manner is When the stagnation detection sensor detects the stagnation of transfer caused by contact with the overlap removal pin, it opens on the upstream transfer surface near the overlap removal pin. The overlapping thin plate ring-shaped parts that are stagnant by the air blown from the second air jet holes are eliminated, and the thin plate is made by the air jetted from the third air jet holes that constantly blows air in contact with the outer surface of the side wall. By eliminating the downward facing thin plate ring-shaped parts that are transferred by protruding the ring part to the outside of the side wall, only the front-facing thin plate ring-shaped parts that do not overlap are transferred to the downstream part and the upstream side in the downstream part. The stopper, the downstream stopper, and the presence / absence detection sensor for detecting the presence / absence of the thin plate ring-shaped component stopped by the downstream stopper, and the supply stage for the next process are operated in sequence to operate the thin plate ring-shaped component. The sheets are supplied one by one to the next process in a face-up posture with the protrusions facing upward.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A feeding device for thin plate ring-shaped parts according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows the circular spring M (or m) shown in FIG.
3 is a partially cutaway side view showing the entire feeding device 1 of FIG.
Is a plan view thereof. 2 and 3, the same device 1
Is generally a hopper 10 and a torsional vibration parts feeder 20.
And a linear vibration parts feeder 50 are combined to form a combined device that can feed both the large-diameter circular spring M and the small-diameter circular spring m. The circular spring M
Since the feeding of the circular spring m and the circular spring m has a lot in common, the following description mainly describes the feeding of the component M, and the component m will be additionally described when necessary.

The hopper 10 has a circular spring (hereinafter,
A large amount of M (stocks are abbreviated as parts) is stocked and provided on a drive unit 14 installed on a pedestal 15 supported by a support 16 fixed to the common base plate 2.

The drive unit 14 is constructed in the same manner as the drive unit 51 of the linear vibration parts feeder 50 which will be described later, and the drive unit 51 will be described there. Therefore, the description of the drive unit 14 will be omitted. Vibration parts feeder 20
In response to the deficiency signal of the deficiency detection sensor 49 of the component M in the bowl 31, the drive unit 14 is activated and linear vibration in the direction indicated by the arrow a is given. Due to this linear vibration, the part M in the hopper 10 is cut out, slides down in the direction of arrow b along the downwardly inclined surface of the chute 11 which is integral with the hopper 10, and is replenished in the bowl 31. Then, the drive unit 14 is stopped in response to the deficiency elimination signal of the deficiency detection sensor 49. The deficiency detection sensor 49 is an optical sensor including a light emitting element and a light receiving element, and detects the presence or absence of the component M based on the difference in the amount of reflected light.

On the common base plate 2, a solenoid valve box 3 in which solenoid valves for connecting and disconnecting compressed air used in various places of the apparatus are gathered, and an amplifier box 4 for optical sensors used in various places. 2 and 3 are installed.
In FIG. 3, the connection between the optical sensor at each location and the amplifier box 4, and the piping connecting each location where compressed air is used and the solenoid valve box 3 are omitted.

The torsional vibration parts feeder 20 comprises a bowl 31 for accommodating and transferring the parts M and a drive portion 21 for imparting torsional vibration to the bowl 31. 2 and FIG. 4 showing a partial cross section in the direction [4]-[4] of FIG. 3, in the drive unit 21, the bottom plate of the bowl 31 is screwed and fixed by the bolt 38, and the movable core Movable block 22 that doubles as
The lower fixed block 24 and the lower fixed block 24 are connected by an inclined leaf spring 23 arranged at equal angular intervals. An electromagnet 26 around which a coil 25 is wound is provided on the fixed block 24 so as to face the movable block 22 with a slight gap. When alternating current is applied to the coil 25, torsional vibration is applied to the bowl 31, and the component M in the bowl 31 is transferred in the direction indicated by arrow c with reference to FIG. Note that, in FIG. 3, for simplification, the part M in which both the hopper 10 and the bowl 31 are accommodated
, But are present in large quantities.

Referring to FIGS. 3 and 4, the bowl 31 has an inverted conical shape, and is provided with a track 33 having a V-shaped cross section having a starting point on the bottom surface 32 of the bowl. The track 33 is composed of a wall surface 33a which faces the center of the bowl 31 and is at a 45 degree angle with the horizontal plane, and a wall surface 33b which also faces the outside of the bowl 31 and is at a 45 degree angle. The part M on the bowl bottom surface 32 is a V-shaped groove 33. It slides in and tilts to either the wall surface 33a or the wall surface 33b, and the other surface is transferred as the track bottom surface.

The track 33 is spirally raised along the inner surface of the bowl peripheral wall 39, and in the process, the wall surface 33b is ground so that the height is gradually decreased and the cross section becomes an inclined L shape. Therefore, the component M tilted and transferred to the wall surface 33b cannot maintain its posture, and the bowl bottom surface 3
The component M that has fallen to No. 2 and is inclined and transferred to the wall surface 33a is transferred with the wall surface 33a as the track wall surface and the wall surface 33b as the track bottom surface. The width of the track bottom surface 33b is further narrowed at the upper portion of the track 33.

The bowl 31 of this embodiment will be described in more detail below. On the inner peripheral wall surface of the substantially conical shape of the bowl 31, a spiral cut groove is formed as a part transfer track along the inner peripheral wall surface. This track is formed so that the width of the transfer path is gradually reduced as it goes upward, but it is a constant value from a certain width.

According to the present embodiment, a spiral cut groove 33 having a V-shaped cross section is formed around the central portion of the bowl 31 which has a middle height. This is connected to the lower end of the spiral track described above. As clearly shown in FIGS. 2 and 4, the cut groove is composed of a pair of side wall portions 33a and 33b, and one side wall portion is parallel to the inner peripheral wall surface of the bowl 31 and is connected to the side wall surface of the track. Further, the other side wall portion is parallel to the bottom wall surface (transfer path) of the truck and is connected to this. The angle between the bottom wall surface and the side wall surface of the truck is 90.
It is said to be °. Therefore, the angle formed by both side wall portions 33a and 33b of the cut groove is also 90 °, and each is inclined by 45 ° with respect to the horizontal plane.

Referring to FIG. 4, at the top of the track 33, first, a wiper plate 34 for removing the parts M which are transferred in an overlapping manner is attached to the inner surface of the bowl peripheral wall 39 by a bolt 36 which is inserted through the elongated hole 35. And a gap through which only the non-overlapping part M can pass is provided between the track wall surface 33a and the track wall surface 33a. Therefore, the overlapping parts M cannot move forward and fall onto the bowl bottom surface 32. The wiper 34 is used as both the component M and the component m.

A first notch 41 and a second notch 42 are provided on the downstream side of the wiper 34. The width of the track bottom surface 33b of the first notch 41 is set to be approximately the same as the height H of the component M, and the component M that has been overlapped or entangled after passing through the wiper 34 is dropped and the component M without overlap is passed. . In the second notch 42, the width of the track bottom surface 33b is set to be approximately the same as the thickness S of the thin plate ring portion R, so that the downward facing part M that contacts the projection Q with the track wall surface 33a falls down. There is. Therefore, after the second notch 42, only the front-faced part M that does not overlap and has the protrusion Q facing outward is transferred.

On the downstream side of the second notch 42, there is provided a quick-discharging gate plate 44 for directly taking out the component M from the bowl 31 in an emergency or in other cases.
That is, a part of the track peripheral wall 39 is cut out to form the rapid delivery path 47, and the track wall 33a on the upstream side and the track bottom surface are attached to the lower surface of the mounting member 45 screwed to the track peripheral wall 39 with two screws 46. A quick-discharging gate plate 44 having a surface matched with the shape and inclination of 33b is screwed and fixed by a screw 48. In case of emergency, in other cases, screw 46
The component M can be taken out of the bowl 31 via the quick-feed path 47 by slackening and removing the quick-release gate plate 44.

As shown in FIG. 3, the vibration trough 61 of the linear vibration parts feeder 50 is closely connected to the downstream end of the track 33 of the torsional vibration parts feeder 20, and the transfer direction of the vibration trough 61 is changed. A return path 29 for returning a part M to be excluded, which will be described later, to the bowl 31 is attached to the right side when facing.

Referring to FIG. 2, in the linear vibration part feeder 50, in the vibration trough 61 and in the drive section 51 which gives the linear vibration to the vibration trough 61, the movable block 52A is integrally fixed to the trough base 69 of the vibration trough 61. , 52B and the lower fixed block 54A are connected by a pair of front and rear inclined leaf springs 53. In addition, a movable core 52C hangs from the movable block 52A, and a fixed block 54A
An electromagnet 56 having a coil 55 wound thereon is provided with a movable core 52.
It is installed opposite to C with a slight gap. The fixed block 54A has a block 54B integral therewith,
A pair of front and rear anti-vibration plate springs 59 are connected to the block 57 installed on the mount 58 on the common base plate 2.
Then, when AC current is applied to the coil 55, DC vibration in the direction indicated by the arrow e is given to the vibration trough 61, so that the component M on the vibration trough 61 in FIG. Transferred in the direction indicated by f.

FIG. 5 shows the vibration trough 6 viewed from the bowl 31 side.
In the side view of FIG. 1, the transfer surface 62 is a horizontal surface from the back side of the paper surface toward the front side, and the component M on the transfer surface 62 is transferred in the direction indicated by the arrow f. FIG. 6 shows the transfer surface 6
2 is a plan view from above perpendicular to FIG. 2, and FIG. 7 is a cross-sectional view taken along line [7]-[7] in FIG.

The vibrating trough 61 is shown in FIGS. 8 and 9 showing a section taken along the line [8]-[8] in FIGS.
[9] Referring to FIG. 9 showing a cross section in the direction of the line, a side wall plate 67 having a thickness of 0.3 mm is fixed as a side wall on the lower end side of the downward slope by three bolts 64 together with a slide plate 68 on the outside thereof. It extends from the upstream end to the downstream end and has a height of 2 mm at both ends and a height of 0.1 mm at the center. Further, a long guide block 65 is fixed to the transfer surface 62 by three bolts 66 on the upper end side of the slope and also serves as an upstream side wall. A large number of narrow grooves 63 parallel to the transfer direction are formed in the substantially central portion of the width of the transfer surface 62 from the upstream end to the downstream end.

At the upstream portion of the vibration trough 61, an overflow component removing mechanism, an overlapping component removing mechanism, and a face-down component removing mechanism are provided, and at the downstream portion, a component M feeding mechanism is provided. To explain these in order,
With reference to FIGS. 5, 6 and 7, the overflow component excluding mechanism is a stagnation detection sensor 71 provided on the vibration trough 61 and an air ejection hole 83 for ejecting air from the compressed air pipe 81.
84 and 65a .

The stagnation detection sensor 71 is [1 in FIG.
0]-[10] line direction cross section 5
The optical sensor 72 of the book is formed as a linear array having a length larger than the radius of the thin plate ring portion R of the component M in the direction perpendicular to the transfer direction from the side wall plate 67 side. The vibration trough 61 installed on the trough base 69 with an inclination of 30 degrees
The sensor support 73 is inserted into the upper guide block 65 via the spacer 72 through the long hole 74 of the two bolts 7.
It is screwed and fixed by 5. As shown in FIGS. 5 and 6, five optical sensors 72 are vertically arranged in a notch in the sensor support 73 in a direction perpendicular to the transfer direction,
It is clamped and fixed to the sensor support 73 by a pressing plate 76 screwed with two bolts 77.

Each optical sensor 72 has a light emitting element and a light receiving element incorporated therein, and the light emitted from the light emitting element is received as reflected light that differs depending on whether or not the mirror-finished part M is present below. The light is received by the element, and the presence or absence of the component M is detected by the difference in the amount of reflected light at this time. Then, referring to FIG. 12 showing the upstream portion of FIG. 6 in an enlarged manner, when the component M moves and passes below the stagnation detection sensor 71, an input is always made to any one of the five optical sensors 72. Based on the time change of the signal, the stagnation detection sensor 71 determines that the component M is being transferred below the sensor. Then, in any one of the photosensors 72, the reflected light from the component M becomes a predetermined number of seconds t ₁
When the light is continuously received as described above, the stagnation detection sensor 71 determines that the component M is stagnation in the lower part. In addition, in the following drawings, a subscript or (') is added to the component M as necessary to distinguish the components M from each other.

The stagnation can be detected even if the number of the optical sensors 72 is one. However, in the case where the inner circumference of the thin plate ring portion R stops below the one optical sensor 72, for example, While it is difficult to determine whether the transfer of the component M is stagnant or the component M is absent, the stagnant detection sensor 71 as a linear array makes a distinct distinction even in such a case.

Further, referring to FIGS. 10 and 12, a cut groove 78 is provided in the trough block 60 of the vibration trough 61 below the five optical sensors 72, and the bottom surface of the trough block 60 is formed by a mirror-finished component M. Has a low reflectance so that the presence or absence of the component M can be reliably determined. That is, it prevents the stagnant detection sensor 71 from making an erroneous determination because the reflected light is scattered by the groove 63 having a saw-tooth cross section.

Air ejection hole of overflow component elimination mechanism
83 , 84 , 65a are shown in FIGS. 5, 6, 7 and FIG. 8 referenced above. Referring to FIG. 8, the air hole 82 is bored in the trough block 60 of the vibration trough 61 that is fixed to be inclined on the block base 69, the air hole 8
2 , air ejection holes 83 , 84 opening to the transfer surface 62,
An air introduction hole 85 is provided, and the compressed air pipe 81 is screwed and fixed to a corresponding hole of the guide block 65 on the transfer surface 62 to communicate with the air introduction hole 85. Further, a notch communicating with the air introduction hole 85 is provided on the inner lower surface of the guide block 65 to form an air ejection hole 65a . The air ejection holes 65a for ejecting air downward from the upper end of the slope in parallel to the transfer surface 62 are extremely effective in blowing the component M toward the lower end of the slope.

A solenoid valve (not shown) is provided in the compressed air pipe 81, and as shown as an example in FIG.
In the overflow state in which the transfer is stagnant adjacent to each other, the stagnant detection sensor 71 detects stagnant by the component M ₆ and instantaneously opens the solenoid valve of the compressed air pipe 81. Air is instantaneously ejected from the ejection holes 83 , 84 , and 65a (FIG. 8), the part M ₇ is blown off as shown by the arrow in FIG. 12, and the part M is blown out as shown by the alternate long and short dash line in FIG. , Falls to the return path 29 as shown by the arrow and is returned to the bowl 31.

The overlapping part removing mechanism is shown in FIGS. 5, 6, and 7.
Referring to FIG. 5, the overlap eliminating pin 91 provided on the vibration trough 61, the air ejection holes 103 and 65b for ejecting air from the compressed air pipe 101, and the stagnation detection sensor 71 are also used. The overlap eliminating pin 91 is shown in FIG. 11 showing a cross section taken along line [11]-[11] in FIG. 7, and the guide block 65 on the trough block 60.
The pin holder 92 is fixed with a bolt 93, and the exclusion pin 91 is overlapped and screwed from above, positioned by a nut 94, and hung just above the transfer surface 62. This hanging position is smaller than the outer diameter D of the thin plate ring portion R in the direction perpendicular to the transfer direction from the side wall plate 67, and the width W of the thin plate ring portion R is subtracted from the outer diameter D (D-W). Are located a great distance away. Furthermore, as shown in FIG. 11, the tip of the overlap eliminating pin 91 is sharpened,
It is devised so that the overlap eliminating pin 91 and the protrusion Q of the component M that is normally transferred do not come into contact with each other. Then, the tip 91P of the overlap eliminating pin 91 and the transfer surface 92
Is a little larger than the thickness S of the thin plate ring portion R. The overlap eliminating pin 91 is for the part M together with the pin holder 92 for position setting. When the small-diameter component m is fed, the overlap eliminating pin 91 and the pin holder 62 are simultaneously excluded for the component m. 91 'and pin holder 92' are exchanged.

The air ejection holes 103 and 65b are shown in FIGS.
As shown in FIGS. 7 and 11, with reference to FIG.
An air hole 102 is bored in the track block 60, and an air ejection hole is opened from the air hole 102 to the transfer surface 62.
103 is provided and communicates with the lead-out hole 104 to the transfer surface 62, and an inner lower surface of the guide block 65 is cut out to provide an air ejection hole 65b similar to the air ejection hole 65a . The compressed air pipe 101 is the trough block 6
It is inserted and screwed into the air hole 102 from the side surface of the inclined upper end side of 0.

A solenoid valve (not shown) is provided in the compressed air pipe 101, and referring to FIG. 14 which shows an enlarged view of the upstream side portion of FIG. 6, the parts M ₄ and M ₄ ′ are transferred in an overlapping manner. When the outer periphery of the upper-layer component M ₄ ′ overlaps and is caught by the tip of the excluding pin 91 to stop the transfer, and the stagnation detection sensor 71 detects the stagnation for a predetermined time t ₂ or more,
Stagnation detection sensor 71 is determined to have occurred stagnation by parts M _4, M ₄ 'are overlapped reject pin 91 overlapping, since the solenoid valve of the compressed air line 101 momentarily to open, and the air ejection holes 103 Air is instantaneously ejected from 65b and the parts M ₄ and M ₄ ′ are blown away as shown by the alternate long and short dash line. The predetermined number of seconds for which the stagnation detection sensor 71, which is also used for judging stagnation, is t ₂ > t ₁ .

The face-down parts removing mechanism is shown in FIG. 5, FIG. 6, FIG.
9 is a sectional view taken along line [9]-[9] in FIG. Referring to FIG. 9, the trough block 6
An air hole 112 is formed in the hole 0, and a compressed air pipe 111 is inserted and screwed from the side surface of the trough block 60 on the upper end side of the slope. The tip of the air hole 112 is connected to the trough block 60 through an opening provided in the side wall plate 67, and a flat U-shaped communication hole 116 formed by the notch provided in the slide plate 68 and the side wall plate 67. I am in touch. One end of the communication hole 116 serves as an air ejection hole 68a and the side wall 67 is formed.
To the surface of the sliding plate 68, and the other end is opened as an air ejection hole 68b similar to the air ejection hole 68a at approximately the center of the vibration trough 61. Furthermore, the air ejection hole 68c is provided on the downstream side of the air ejection holes 68b with an interval comparable to the distance between the ejection hole 68a and 68b. The air ejection hole 68c is the air ejection hole 68a shown in FIG.
6 and 7, the compressed air pipe 114 has an air hole formed in the trough block 60.
115 is inserted into screwed, the tip of the air hole 115 side walls 6
It communicates with the air ejection hole 68c through the opening of 7.
The air ejection holes 68c are for removing the component M that rides the thin plate ring portion R on the side wall plate 67 while being transferred by vibration. Air is constantly ejected from the air ejection holes 68a , 68b , 68c .

Further, the side wall plate 67 has a height of 2 mm from the transfer surface 62 at the upstream end portion and the downstream end portion as described above, but from the upstream side of the air ejection hole 68a to the air ejection hole.
As shown in FIGS. 5, 9, 10 and 11, the height from the transfer surface 62 is about the same as the thickness S of the thin plate ring portion R of the component M in the central portion extending to the downstream side of 68c . Is 0.1 mm.

FIG. 1 is an enlarged view of the upstream portion of FIG.
6, and FIG. 17 showing a cross section taken along line [17]-[17] in FIG.
Is transferred to the side wall plate 67, and the thin plate ring portion R passes over the low side wall plate 67 and covers above the air ejection hole 68a , so that the face-down component M is ejected by the thin plate ring portion R. Is lifted, blown off as shown by the alternate long and short dash line, falls onto the return path 29, and is returned into the bowl 31. Note that FIG. 17 and FIG. 9 show the same cross section.

The individual feeding mechanism of the component M is shown in FIGS. 5, 6, 7 and FIG. 20 which is a sectional view taken along line [20]-[20] in FIG. 6, and generally see FIG. Then, the presence or absence of the component M on the upstream transfer surface 62 adjacent to the first stopper pin 121, the second stopper pin 131, and the second stopper pin 131 which are arranged in the transfer direction and protruded from the transfer surface 62 and retracted. Presence / absence detection sensor 14 attached to the lower surface of the trough block 60 for detecting
1, a compressed air pipe 148 provided above the transfer surface 62 for promoting the transfer of the component M, and a supply stage 15 for the next process arranged in the vicinity of the downstream end of the vibration trough 61.
It consists of 0.

Referring to FIG. 7, the first stopper pin 121 has a hole 124 formed on the lower surface side of the trough block 60.
A through hole 125 is provided in the ceiling surface of the first air cylinder 123, and the first stopper pin 121 fixed to the rod 122 of the lower air cylinder 123 is inserted into the through hole 125 by the rising of the rod 122 and is projected from the transfer surface 62 to cause the component M. Of the first stopper pin 12 by stopping the movement of the rod 122 and lowering the rod 122.
1 is retracted from the transfer surface 62, and the stop of the component M is released. The second configured similarly to the first stopper pin 121
The stopper pins 131 are provided on the downstream side of the first stopper pins 121 at intervals of approximately 1.5 times the outer diameter of the component M. That is, the second stopper pin 131 is fixed to the rod 132 of the air cylinder 133 and moves up and down the through hole 135 in the ceiling surface of the hole 134 formed on the lower surface side of the trough block 60. The two air cylinders 123 and 133 are fixed to the common fixing plate 126 on the column 127.

The presence / absence detection sensor 141 is shown in FIGS. 5, 6, and 2.
0, it is provided to detect the presence or absence of the component M stopped by the second stopper pin 131 with reference to FIG. 6, and as shown in FIG.
The presence / absence detection sensor 14 is provided in the sensor hole 142 formed in the
1 is inserted and positioned by the nut 144. In addition, the upper end of the sensor hole 142 has an inverted conical diameter expansion hole 143 so that the presence / absence detection sensor 141 widely captures the transfer surface 62.
It has been. The presence / absence detection sensor 141 is an optical sensor having a light emitting element and a light receiving element incorporated therein and, like the optical sensor 72 in the stagnation detection sensor 71, detects the presence / absence of a component based on the amount of reflected light, and detects its presence / absence signal. Is input to a control circuit for raising and lowering the first stopper pin 121 and the second stopper pin 131.

As shown in FIGS. 5, 6 and 7, the compressed air pipe 148 is installed above the intermediate position between the first stopper pin 121 and the second stopper pin 131.
Referring to FIG. 20, the air nozzle holder 147 is provided to the guide block 65 on the transfer surface 62 via the spacer 145.
Are screwed by bolts 146. Then, the compressed air pipe 14 is inserted into the air nozzle holder 147 from above.
8 is inserted and fixed, and the air nozzle 149 at the tip of the compressed air pipe 148 is set at an angle for ejecting air toward the inner circumference of the thin plate ring portion R of the component M stopped by the second stopper pin 131. There is. This air nozzle 149
Air is constantly ejected from the second stopper pin 13
The stop by 1 is released to assist and promote the transfer of the component M to the supply stage 150 on the downstream side.

Referring to FIG. 2, the supply stage 150 for the next step is provided on a support column 128 fixed to the block 58C integral with the pedestal 58 of the linear vibrating parts feeder 50 with two bolts 129. Since it is separated from the drive unit 51 of the linear vibration parts feeder 50, it does not vibrate. With reference to FIG. 21, which is a view taken along line [21]-[21] in FIG.
It is fixed with two bolts 138 to an angle member 137 which is fixed with two bolts 136 at the upper end of 28. Also, referring to FIG. 6, the supply stage 150 rotates the stage block 151 around the rotation shaft 157 between the two bearing members 158 fixed by the two bolts 161 from below the base member 159. It is pinched as possible. And the stage block 151 is a vibration trough 61.
When the component M is delivered to and from the transfer surface 62, it is aligned with the transfer surface 62 and has the same inclination, and when it is supplied to the next process, it is rotated upward to form a horizontal plane indicated by a one-dot chain line. Is a width corresponding to the transfer surface 62
Is formed with a recess 152 having an area capable of mounting thereon.

The rotation of the stage block 151 is shown in FIG.
Returning to, the air cylinder 154 attached to the lower surface of the base member 159 is fixed by the nut 162 on the upper surface of the base member 159, and the rod 155 moves up and down above the base plate 159, but the tip of the rod 155 has the stage block 151. It is inserted and abutted in the guide groove 153 formed on the lower surface side of the stage block 151, and the stage block 151 is rotated between the inclined surface and the horizontal plane by the elevation of the rod 155. Also, when returning from the horizontal surface to the inclined surface, the side surface of the base plate 159 and the stage block 151 are
The coil spring 156, which connects to the side surface of, is biased by the contracting force of the coil spring 156 and instantaneously returns to the inclined surface. In addition, stage block 1
The rotation from the delivery position of the component M, where 51 is an inclined surface, to the supply position of the component M for the next step, which is a horizontal surface, is started in conjunction with the rise of the second stopper pin 131, and the supply position is transferred to the delivery position. The rotation is started by a pickup completion signal from the next process. Further, when the stage block 151 returns to the delivery position, a return signal is transmitted, and by confirming the signal, the second stopper pin 131 is controlled to start descending.

As described above, the rise and fall of the first stopper pin 121 and the second stopper pin 131 are controlled in association with the presence / absence detection signal of the presence / absence detection sensor 141 and the rotation of the supply stage 150.

The first stopper pin 121 and the second stopper pin 131 are raised, the part M ₃ is stopped on the first stopper pin 121, and the part M is placed on the second stopper pin 131.
_When the supply stage 150 receives the signal returned to the delivery position in the state where ₂ is stopped, the second stopper pin 1 is referred to with reference to FIG. 18 which is an enlarged view of the downstream portion of FIG. 7.
31 is lowered and the part M ₂ is released from the stop and is transferred to the supply stage 150. The presence / absence detection sensor 141 detects the absence of the component M ₂ by this transfer, but the second stopper pin 131 is raised in response to the signal, and then the first stopper pin 121 is lowered. First stopper pin 121
As a result, the transfer of the component M ₃ shown in FIG. 19 following FIG. 18 is started and reaches the second stopper pin 131 and is stopped. This stop is detected by the presence / absence detection sensor 141 of the part M.
₃ is detected, and the signal causes the first stopper pin 121 to rise, and the subsequent component M ₄ is stopped by the first stopper pin 121. During this time, the supply stage 150 is rotated to the supply position, picked up the component M _2, and then returned to the delivery position. In this way, one cycle of individual feeding of the parts M is completed, and this cycle is repeated so that the parts M are supplied one by one to the next process.

Incidentally, when the component M ₄ is stopped by the first stopper pin 121, the outer periphery of the component M ₄ is stopped by coming into contact with the first stopper pin 121 depending on the transfer interval between the component M ₃ and the component M _4. And the first stopper pin 121 is the part M
_It may be inserted into the inner circumference of the thin plate ring portion R of ₄ , and the inner circumference may come into contact with the first stopper pin 121 and be stopped.

The sheet feeding device for thin plate ring-shaped parts according to the embodiment of the present invention is constructed as described above, and its operation will be described below.

2 and 3, a large amount of parts M are accommodated in the hopper 10 and the bowl 31 of the torsional vibration part feeder 20.
Drive unit 21 of linear vibration parts drive unit 5
It is assumed that 1 is in a driving state by being energized with an alternating current, and that optical sensors, compressed air sources, and solenoid valves attached to these parts are also in an operating state.

The hopper 10 receives the deficiency signal from the deficiency detection sensor 49 for monitoring the deficiency of the parts M in the bowl 31, and the drive section 14 is activated, and the hopper 10 is linearly vibrated in the direction of the arrow a to accommodate the parts. M is cut out, and the part M slides down the chute 11 as shown by the arrow b to make the bowl 31
It is replenished inside. Then, the drive unit 14 is stopped by the deficiency elimination signal of the deficiency detection sensor 49. Since it is replenished in this way, there will be no shortage of the parts M in the bowl 31.

Since the bowl 31 is given a torsional vibration by its driving portion 21, the parts M in the bowl 31 are transferred in the direction indicated by the arrow c as a whole, but referring to FIG. The upper part M slides into a track 33 as a kerf having a V-shaped cross section, and is mounted on one of a wall surface 33a having an angle of 45 degrees facing the center of the bowl 31 and a wall surface 33b having an angle of 45 degrees facing the outside of the bowl 31. It tilts and begins to be transferred with the other side as the bottom. In the process of spirally ascending along the inner surface of the bowl peripheral wall 39, the track 33 is inclined to the wall surface 33b because the height of one wall surface 33b is gradually lowered and the cross section has an inclined L shape. The component M cannot keep its posture and falls to the bowl bottom surface 32, and the component M tilted to the other wall surface 33a is transferred with the wall surface 33a as the track wall surface and the wall surface 33b as the track bottom surface.

The thin plate-shaped component M is guided to the inside of the cut groove 33 by the centrifugal force action by the torsional vibration. In the cut groove 33, the component M tilts to either one of the side wall portions 33a and 33b as shown in FIG. Moreover, it inclines to either one at an almost equal rate. These are transferred at approximately the same speed. Since the cut groove 33 is connected to the ascending opening of the spiral track, that is, the lower end of the lower part of the track (see FIG. 3), the component M is smoothly introduced into the track. The component M, which is tilted and introduced into the other side wall portion 33b in the cut groove 33, has a gradually decreasing track transfer width. Therefore, when it travels on the track for a while, it falls downward, but one side wall portion 33a. The component M introduced by inclining to the above-mentioned manner advances in the same posture, that is, in a standing posture, inclining to the bottom wall surface of the truck as the cut groove. Of the parts M that move in a standing posture, the part M on the inner side of the bowl gradually slides down the width of the track transfer path. To the truck part. In this case, since the component M does not drop to the lowermost position, it is possible to improve the feeding efficiency of the component. Thus, the parts M can be efficiently supplied in a standing posture.

On the upper part of the truck 33, the wiper 34 which allows only one component M tilted to the track wall surface 33a to pass therebelow is returned to the bowl bottom surface 32 so that the components M which are overlapped and transferred are returned to the bowl bottom 32 without overlapping. Only wiper 3
4 is transferred.

The part M is the first notch 41 on the track 33.
In the first notch 41, the width of the track bottom surface 33b is made approximately the same as the height H of the component M, so that the component M entangled or overlapped by vibration after passing through the wiper 34 is It falls from the notch 41 to the bowl bottom surface 32. In the second cutout 42, the width of the track bottom surface 33b is set to be approximately the same as the thickness S of the thin plate ring portion R, so that the face-down component M in which the protrusion Q is in contact with the track wall surface 33a is the second cutout. 42 to the bowl bottom 32, and the protrusion Q
The second cutout 4 only on the front-faced part M that faces outwards.
Pass 2.

Further, the component M is transported on the quick-discharging gate plate 44 having a surface aligned with the shape of the track 33 on the upstream side and the inclination angle, reaches the downstream end of the track 33, and approaches the downstream end thereof. Are transferred to the upper end of the vibration trough 61 of the linear vibration parts feeder 50 connected. It should be noted that, while the component M is transferred through the track 33 of the torsional vibration part feeder 20, the overlapping component M is removed and the face-down component M is excluded, but after that, the component M is also subjected to torsional vibration and transferred. , The surface accuracy of the part M is high, and the track wall surface 33a
Therefore, not all of the parts M are in the face-up state and are not overlapped at the downstream end of the truck 33.

The transfer surface 62 of the vibration trough 61 in the linear vibration parts feeder 50 is the torsional vibration parts feeder 20.
And the horizontal surface of the track wall 33a of the
In addition to the inclined surface having a width of about the same as the track wall surface 33a, referring to FIGS.
Since the side wall plate 67 is provided with a height of 2 mm from the transfer surface 62 at the upstream end of the vibration trough 61,
Is the transfer surface 6 of the vibration trough 61 from the downstream end of the truck 33.
It smoothly moves to 2, and the end surface of the thin plate ring portion R contacts the side wall plate 67 and starts to be transferred.

On the transfer surface 62 of the vibrating trough 61, a large number of thin grooves 63 parallel to the transfer direction are formed in a sawtooth-shaped cross section, so that the parts M and the groove to be transferred by vibration are transferred. Since air is likely to move between the parts 63 and 63, and the contact area is reduced, a transfer trouble in which the component M comes into close contact with the transfer surface 62 does not occur.

In the process of transferring the vibrating trough 61, the parts M are excessively transferred for some reason, and as shown as an example in FIG. 12, the parts M are in an overflow state in which they are adjacent to each other, and the transfer is stagnation. When the detection sensor 71 detects the stagnation of the component M ₆ immediately below for a predetermined number of seconds t ₁ or more, also refer to FIG.
The solenoid valve No. 1 is instantly opened and the air jet holes 83 , 84 ,
Air is ejected from the nozzles 65a and 65a to blow off the component M _{7, and} is returned into the bowl 31 via the return passage 29. Then, even if the succeeding part M ₈ reaches the position where the part M ₇ was present, as long as the part M ₆ is stagnant, the air ejection holes 83 1 ,
Since 84 and 65a intermittently eject air, the transfer surface 6
It is possible to prevent the parts M from accumulating on 2.

It should be noted that the stagnation detection sensor 71 has a predetermined number of seconds t.
_When the stagnation of the part M _{6 for} a predetermined number of seconds t ₂ longer than ₁ is detected, the solenoid valve of the compressed air pipe 101 is instantly opened,
Air is also instantaneously ejected from the air ejection holes 103 and 65b (FIG. 11), and if the stagnation continues, intermittent ejection of air is continued, but this ejection of air also contributes to elimination of the overflow state.

FIG. 13 is a plan view similar to FIG. 12, showing an example of the overflow state of the small-diameter component m. The stagnation detection sensor 71 detects stagnation of the component m _{6 for} a predetermined number of seconds t ₁ or more. The component m ₇ is blown off by the air blown from the air jet holes 83 , 84 and 65a (FIG. 8),
When the stagnation of the part m ₆ continues and reaches the predetermined number of seconds t ₂ or more,
Air is also instantaneously ejected from the air ejection holes 103 , 65b (FIG. 11) to blow off the component m ₅ .

Further, the parts M may be transferred in an overlapping manner. In the overlapping manner, the lower layer component M is face-up, and the upper layer component M ′ is face-down, and the protrusion Q of the component M is component M ′.
Inside the inner periphery of the thin plate ring portion R'of
Is an overlap of the parts M protruding into the inner circumference of the thin plate ring portion R, the lower layer part M is face-up and the upper layer part M ′ is face up, and the protrusion Q of the lower layer part M is the upper layer part. The thin plate ring portion R of the lower layer component M and the thin plate ring portion R ′ of the upper layer component M ′ are closely overlapped with each other by protruding into the inner periphery of the thin plate ring portion R ′ while avoiding the protruding portion Q ′ of M ′. , Lower part M
However, there is a stable overlap between the thin plate ring portions R and R'of both parts, and there is a variety of unstable parts including those that are partially entangled. There is an overlap.

11 and 14, the overlap eliminating pin 91 is smaller than the outer diameter D of the thin plate ring portion R in the direction perpendicular to the transfer direction from the side wall plate 67, and from the outer diameter D to the thin plate ring portion. It is suspended on the transfer surface 62 at a distance larger than the width (R) of the width R (D-W), and the tip 9 of the overlap eliminating pin 91 is suspended.
Since the space between 1P and the transfer surface 62 is set to be slightly larger than the thickness S of the thin plate ring portion R, the outer periphery of the upper layer component M ′ is the same regardless of how the components M overlap. The transfer is stopped by coming into contact with the tip of the overlap eliminating pin 91, and stagnation occurs. In addition, the protrusions Q of the non-overlapping parts M do not overlap with each other and come into contact with the excluding pin 91, and the transfer is not hindered.

In FIG. 14 showing the state of stagnation of overlappingly transferred parts, the parts M ₄ and M ₄ ′ whose transfer is stopped by the overlap eliminating pin 91 are stagnation for a predetermined number of seconds t ₂ or more by the stagnation detection sensor 71. Is detected, the solenoid valve of the compressed air pipe 101 is momentarily opened, and the air ejection hole is opened.
Air is instantaneously ejected from 103 1 and 65b (FIG. 11) to blow off the components M ₄ and M ₄ ′, and returned to the bowl 31 via the return path 29 below. Of course, in this case
Since the predetermined number of seconds t ₁ has elapsed before the predetermined number of seconds t ₂ is reached, air is also instantaneously ejected from the air ejection holes 83 , 84 , 65a before the air ejection from the air ejection holes 103 , 65b. It

FIG. 15 is a plan view similar to FIG. 14, showing a case where small-diameter parts m are transferred in an overlapping manner. The overlapping parts m ₄ and m ₄ ′ are provided at positions for the part m. The outer periphery of the upper layer component m ₄ ′ comes into contact with the overlap eliminating pin 91 ′ and the transfer is stopped, and the stagnation detection sensor 71 detects the stagnation of the overlapping components m ₄ and m ₄ ′, and the air ejection hole 10
3 and 65b ejected air and overlapped parts m ₄ and m
_The fact that 4'is blown off is similar to the case of overlapping large-diameter parts M. Further, the overlap eliminating pin 91 ′ is smaller than the outer diameter d of the thin plate ring portion r in the direction perpendicular to the transfer direction from the side wall plate 67, and the width w of the thin plate ring portion r is subtracted from the outer diameter d (d−w). ), The transfer surface 6
Even if the width of 2 is much wider than the outer diameter of the part m,
It does not happen that the overlapping parts m, m ′ deviate above the exclusion pin 91 ′ against the inclination.

The overlap eliminating pin 91 (or 91 ')
In the case where a face-down part M (or m) described later is not rejected by the upstream air ejection holes 68a and is transferred,
Since these are guided to the lower part of the slope, the part M facing down
(Or m) is eliminated by the air jetted from the air jet holes 68b .

When the transferred component M is face down, refer to FIGS. 16 and 17, and the height of the side wall plate 67 on the inclined lower end side of the vibrating trough 61 excluding the upstream end and the downstream end. Is about 0.1 mm, which is almost the same as the thickness S of the thin plate ring portion R, but the back-faced component M is transferred with the protrusion Q in contact with the side wall plate 67, so that the thin plate ring portion R has a side wall. The air is blown over the plate 67 and covers the air ejection holes 68a . Air ejection holes 68a provided in contact with the outer surface of the side wall plate 67,
Since air is constantly ejected from 68b and 68c ,
Figure 16 shows a portion of the air ejection holes 68a, 17, the air ejection holes 68a in a thin plate ring portion R of the face-down component M
The air blown out from is blown, and the part M is blown away as shown by the alternate long and short dash line. The same applies to the case of the small diameter part m facing down.

Returning to FIG. 6, on the transfer surface 62 downstream of the overlap eliminating pin 91, the component M is transferred as a single layer with the surface facing upward and having no overlap, but it is still transferred by being subjected to linear vibration. The ring portion R rides on the side wall plate 67, or the front end portion and the rear end portion of the thin plate ring portions R of the components M that are transferred next to each other overlap each other, and the thin plate ring portion R in the upper layer overlaps the side wall plate 67. Riding on, parts M
May come off the transfer surface 62. These parts M slide down along the inclination of the transfer surface 62 in FIG. 6, but are blown upward from the air ejection holes 68b and 68c opened in contact with the outer surface of the side wall plate 67. It is assisted, removed to the return path 29, and returned to the bowl 31. Ie. The air ejection holes 68b work to remove the face-down component M, and also work to remove the component M out of the transfer surface 62.

A signal indicating that there is no overlap and the front-faced part M reaches the downstream part, but in the initial state where the part M does not exist in the downstream part and the supply stage 150, the supply stage 150 is in the delivery position and the part M is absent. Is transmitted, the second stopper pin 131 is lowered, and the presence / absence detection sensor 141 transmits the fact that there is no part M stopped by the second stopper pin 131.
21 has also been lowered. Therefore, the component M ₁ (not shown) is transferred to the supply stage 150, and the presence / absence detection sensor 141 once detects the presence of the component M ₁ , but immediately detects the absence thereof, so that the second stopper pin 131 is raised. At this time, the first stopper pin 121 is attached to the presence / absence detection sensor 141.
Since it is once raised by the detection of the presence of No, and immediately lowered by the detection of nothing, the subsequent component M ₂ passes through the first stopper pin 121 and is stopped by the second stopper pin 131. The presence / absence detection sensor 141 is the second stopper pin 131.
The presence of the component M ₂ stopped at this time is detected to raise the first stopper pin 121. Therefore, the further following component M ₃ is stopped by the first stopper pin 121, but during this period, the supply stage 150 is rotated to the horizontal plane which is the supply position for the next process, and the component M ₁ is picked up and returned to the delivery position. Issue a return signal. Hereinafter, with reference to FIG. 18, the second
The stopper pin 131 is lowered and the component M ₂ is transferred to the supply stage 150, and the presence / absence detection sensor 141 detects the component M ₂
19, the second stopper pin 131 is raised and then the first stopper pin 121 is lowered, so that the component M ₃ is transferred to the second stopper 131. Be stopped. Since the presence / absence detection sensor 141 detects the presence of the component M ₃ , the first stopper pin 121 is raised and the subsequent component M ₄ is stopped by the first stopper pin 121, during which the supply stage 15
0 returns to the delivery position and issues a return signal after being rotated to the supply position to pick up the component M ₁ . In this way, one cycle of the individual feeding mechanism is completed. Then, in the steady state of feeding, this cycle is repeated, and the parts M that are face-up and do not overlap are fed one by one to the next process.

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

For example, in this embodiment, the first stopper pin 121 and the second stopper pin 131 are raised from below the transfer surface 62 to the stop position and lowered to the stop release position, but above the transfer surface 62. Therefore, the transfer of the component M may be stopped and the stop may be released.

Further, in this embodiment, the supply stage 15
0 was rotated between the inclined surface as a transfer position with respect to the vibration trough 61 and the horizontal surface as a supply position for the next process.
When the supply to the next process is possible even on an inclined surface, the rotation of the supply stage 150 is not always necessary, and the supply stage 150 may be lifted upward depending on the request. Can be.

Further, in the present embodiment, the torsional vibration part feeder 20 is used for supplying the component M to the trough 61 of the linear vibration part feeder 50, but it may be supplied by a method other than this.

Further, in this embodiment, the torsional vibration part feeder 20 is provided with the wiper 34, the first notch 41, and the second notch 42 so as to eliminate the overlapped part M and the face-down part M. However, one or more of them may be omitted, or all of them may be omitted and the torsional vibration part feeder 20 may be used only for supplying the part M.

Further, in this embodiment, the part M (or m) having the three projecting portions Q (or q) on one side is targeted for feeding, but a thin plate ring-shaped part having no projecting portion is also overlapped. It can be excluded and sent.

In the above embodiments, a thin plate-shaped ring-shaped component is described as a component, and the present invention is applied to such a component. The sensor 71 can also be applied to the thin plate-shaped components H ₁ , H ₂ , V ₁ , and V ₂ as shown in FIGS. 22 and 23.

That is, in FIG. 22, when it is applied to the H-shaped thin plate-shaped component H ₁ , it consists of five optical sensor elements 72, so that this component H ₁ overlaps as shown in the drawing, and the elimination pin 91. Then, when the overlapped parts H ₁ are stagnant, it is determined that clogging has occurred by detecting the central connecting part h ₃ connecting the arm parts h ₁ and h ₂ on both sides of the overlapping parts H _1. In a state in which the surface 62 is in considerable contact from the downstream end portion to the upstream side and overflows,
When the part H ₁ can be detected also in the arm part h ₁ or h ₂ , and the part h ₂ having the same shape and a small size overlaps with the excluding valve 91 ′. It is possible to detect this even in a state in which an overflow occurs due to considerable contact at the downstream end.

Similarly, FIG. 23 shows an inverted V-shaped thin plate component V.
_{Although a 1} is shown, it is again possible to detect this part at any position as it passes from the front end to the rear end of this part V ₁ . Similarly, with respect to the small inverted V-shaped component V ₂ of the similar shape, the component can be similarly detected at any position from the front end to the rear end. The stagnation detection sensor 71 of the present embodiment has such an effect.

[0078]

As described above, according to the thin plate ring-shaped component feeding apparatus of the present invention, an overflow of the thin plate ring-shaped component having a plurality of projections on one side along the inner circumference of the thin plate ring-shaped component. It is possible to supply the sheets one by one to the next step with the protrusions facing upward while eliminating the overlap.

[Brief description of drawings]

FIG. 1 is a perspective view of two types of circular springs as thin plate ring-shaped parts to be fed, where A is a small diameter circular spring (small diameter part) and B is a large diameter circular spring (large diameter part). Show.

FIG. 2 is a partially cutaway side view of the entire feeding device for the thin plate ring-shaped component according to the embodiment of the present invention.

FIG. 3 is a plan view of the entire apparatus.

FIG. 4 is a partial cross-sectional view taken along line [4]-[4] in FIG.

FIG. 5 is a side view of a vibrating trough of the linear vibrating parts feeder in the same apparatus.

FIG. 6 is a plan view from above perpendicular to the transfer surface of the vibration trough.

7 is a cross-sectional view taken along line [7]-[7] in FIG.

8 is a cross-sectional view taken along the line [8]-[8] in FIG.

9 is a cross-sectional view taken along the line [9]-[9] in FIG.

10 is a cross-sectional view taken along the line [10]-[10] in FIG.

11 is a cross-sectional view taken along line [11]-[11] in FIG.

12 is an enlarged plan view of the upstream portion of FIG. 6, showing the removal of large diameter components in an overflow condition.

FIG. 13 is a view corresponding to FIG. 12, showing the elimination of small diameter parts in an overflow condition.

FIG. 14 is an enlarged plan view of the upstream portion of FIG. 6, showing the elimination of overlapping large diameter components.

FIG. 15 is a view corresponding to FIG. 14, showing the elimination of overlapping small diameter parts.

FIG. 16 is a plan view of the upstream portion of FIG. 6, showing the elimination of the face down large diameter component.

17 is a cross-sectional view taken along the line [17]-[17] in FIG.

FIG. 18 is an enlarged cross-sectional view of the downstream portion of FIG.
At the same time, the action of the first stopper pin and the second stopper pin is shown.

FIG. 19 is a view corresponding to FIG. 18, showing the action of the first stopper pin and the second stopper pin together with FIG. 18.

20 is a sectional view taken along line [20]-[20] in FIG.

21 is a view taken along the line [21]-[21] in FIG.

FIG. 22 is an enlarged plan view of an upstream portion similar to FIG. 12, but showing a case where another type of component is changed.

FIG. 23 is a diagram showing a case where a component of another type is further changed similarly to FIG. 22.

[Explanation of symbols]

1 Feeder for thin plate ring-shaped parts 10 Hopper 14 Drive part 20 Torsional vibration part feeder 21 Drive part 29 Return path 31 Bowl 33 Track 34 Wiper 41 First cutout 42 Second cutout 50 Linear vibration part feeder 51 Drive part 61 Vibration trough 62 Transfer surface 63 Groove 67 Side wall plate 68 Sliding plate 68a Air ejection hole 68b Air ejection hole 68c Air ejection hole 71 Stagnation detection sensor 81 Compressed air piping 83 Air ejection hole 84 Air ejection hole 91 Overlap removal pin 101 Compressed air piping 103 Air ejection hole 121 First stopper pin 131 Second stopper pin 141 Presence / absence detection sensor 148 Compressed air piping 149 Air nozzle 150 Supply stage 151 Stage block 154 Air cylinder 155 Rod 156 Coil spring 157 Rotating shaft 159 Base member

Claims (20)

[Claims] 1. A feeding device for a ring-shaped component for transferring a ring-shaped component by linearly vibrating a linear trough,
A first stopper pin that is provided so as to project vertically from the bottom surface of the trough or from above to be close to the discharge end of the trough and upstream, and from the first stopper pin to the upstream side of the ring-shaped component. A second stopper pin that is larger than the outer diameter and smaller than twice the outer diameter is provided in the vicinity of the first stopper pin and the second stopper pin that is provided so as to vertically project and retract from the bottom surface of the trough or from above. It is composed of a component detecting means and first and second driving portions that drive the first and second stopper pins up and down, respectively. A feeding device for ring-shaped parts, characterized in that the first and second stopper pins are independently moved up and down. 2. The feeding device for the ring-shaped component according to claim 1, wherein the ring-shaped component is a thin plate, and a large number of narrow grooves are formed in the transfer surface in the transfer direction. 3. A torsion-vibration parts feeder is disposed in the vicinity of the upstream end of the linear trough, and is subjected to the torsional vibration to receive a large number of thin plate-shaped ring-shaped containers. A bottom wall having a width substantially smaller than half the diameter of the part to be transferred along the inner wall of the inverted conical shape and substantially perpendicular to the inner wall, and a side wall having a width substantially perpendicular thereto and larger than the diameter of the part A spiral track composed of a part and a bottom part of the bowl-shaped container for transferring the parts on the bottom wall surface of the track in an upright posture, and a cut groove having a V-shaped cross section is formed on the bottom part. The both side wall portions are formed in a spiral shape so as to form the same angle in the opposite direction with respect to the horizontal plane, and one of the both side wall portions on the radially inner side of the bowl-shaped container is connected to the lower end of the bottom wall surface, The other outer side of the bowl-shaped container is the side wall of the truck. The part that has been in contact with one of the side walls of the cut groove and has reached the lower end of the bottom wall surface falls downward because its center of gravity is inside the edge of the bottom wall. 3. A component that reaches the side wall portion of the track by tilting abutting against the other side wall portion of the cut groove and is transferred while standing in a tilting contact with the side wall portion of the track. The feeding device for the ring-shaped parts according to. 4. The feeding device for the ring-shaped component according to claim 3, wherein the width of the bottom wall surface of the track is formed so as to decrease from the lower end thereof upward at a constant rate. 5. The stagnation detection sensor arranged in the vicinity of the transfer surface for detecting stagnation of transfer of the thin plate ring-shaped component at an upstream portion of the trough, the ring-shaped component having a thin plate shape. And when the stagnation of the transfer due to overflow or the like is detected, the air is ejected on the upstream side of the stagnation detection sensor to the transfer surface for eliminating the thin plate ring-shaped component on the transfer surface, or in the vicinity thereof. The opened first air ejection hole, the overlap eliminating pin hung just above the transfer surface with a gap slightly larger than the thickness of the thin plate ring portion, and the upper layer of the thin plate ring-shaped component transferred in an overlapping manner. When the stagnation of the transfer due to being stopped in contact with the overlap eliminating pin is detected, air is ejected on the upstream side close to the overlap eliminating pin to eliminate the overlapped thin plate ring-shaped component. And a second air ejection hole opened on the transfer surface and a downstream portion of the trough are arranged at a distance larger than the outer diameter of the thin plate ring-shaped component but smaller than twice in the transfer direction. It is provided with upstream and downstream stoppers, a component presence / absence detection sensor that is disposed on the upstream side in the vicinity of the downstream side stopper and that detects the presence or absence of the thin plate ring-shaped component, and a supply stage to the next process. ,
From the state where the thin plate ring-shaped component transferred to the downstream portion is stopped by the downstream stopper at the stop position, when the thin plate ring-shaped component is not present on the supply stage, the downstream side stopper is At the stop release position, the upstream stopper is set to the stop position, and the thin plate ring-shaped component stopped at the downstream side is transferred to the supply stage, and then the component presence / absence detection sensor is set to the thin plate ring-shaped component. After confirming that there is no component, the downstream stopper is set to the stop position and the upstream stopper is set to the stop release position, and the subsequent thin plate ring-shaped component stopped by the upstream stopper is transferred, The downstream stopper is stopped, and then the component presence / absence detection sensor is stopped.The upstream stopper is stopped after confirming the presence of the following thin plate ring-shaped component. The sheet metal ring-shaped component is placed at a predetermined position, and the thin plate ring-shaped component is picked up from the supply stage during this period, and the cycle of disappearing is repeated, and the thin plate ring-shaped component is supplied to the next step one by one. Item 3. A feeding device for a ring-shaped part according to item 2. 6. The trough of the linear vibrating parts feeder is provided with the groove in order to prevent the irradiation light from the stagnation detection sensor from being scattered by the groove provided on the transfer surface. The ring-shaped component feeding device according to claim 5, wherein a region of the transfer surface immediately below the stagnation detection sensor is a kerf having a flat bottom surface. 7. The stagnation detection sensor is provided with a plurality of unit sensors as a linear array having a length larger than a radius of the thin plate ring-shaped component in a direction traversing the transfer surface. Item 7. A feeding device for a ring-shaped component according to any one of items 6 to 6. 8. The first air ejection hole and the second air ejection hole each have an opening in the transfer surface and an opening inclined downward and parallel to the transfer surface at an upper end side of the inclination of the transfer surface. The feeding device for the ring-shaped component according to claim 7. 9. The air jet nozzle for blowing air to the inner peripheral portion of the thin plate ring portion of the thin plate ring-shaped component transferred to the supply stage to assist the transfer, according to claim 5. The feeding device for a ring-shaped component according to claim 8. 10. The thin plate ring-shaped member, wherein the supply stage is disposed in the vicinity of a downstream side of the trough, and is an inclined surface aligned with a transfer surface of the trough when the thin plate ring-shaped component is transferred. The feeding device for a ring-shaped component according to any one of claims 5 to 9, wherein a horizontal surface is provided when the component is supplied to the next step. 11. A feeding device for a thin plate ring-shaped component, comprising a plurality of protrusions on one surface side along the inner circumference of the thin plate ring portion, the transfer surface being inclined downward to one side in the transfer direction, And a height equal to or less than the thickness of the thin plate ring portion, and a trough having a side wall on the lower sloped lower end side having a thickness smaller than the width of the thin plate ring portion is composed of a linear vibration parts feeder that linearly vibrates, An upstream portion of the trough, a stagnation detection sensor disposed near the transfer surface for detecting stagnation of the transfer of the thin plate ring-shaped component,
When transfer stagnation due to overflow or the like is detected, air is jetted upstream of the stagnation detection sensor to open the transfer surface for removing the thin plate ring-shaped component on the transfer surface or in the vicinity thereof. In the distance perpendicular to the transfer direction from the first air ejection hole and the side wall, the outer diameter is smaller than the outer diameter of the thin plate ring portion and the outer diameter is larger than a value obtained by subtracting the width of the thin plate ring portion. , An overlap eliminating pin that is hung just above the transfer surface with a gap slightly larger than the thickness of the thin plate ring portion, and an upper layer of the thin plate ring-shaped component that is transferred overlapped is stopped in contact with the overlap eliminating pin. When the stagnation of the transfer due to the slump is detected, the air is ejected on the upstream side close to the overlap removing pin to open the transfer surface for removing the overlapped thin plate ring-shaped parts. 2 Air ejection holes and the outer surface of the side wall for removing the thin plate ring-shaped component which is transferred by contacting the protruding portion with the side wall and protrudes the thin plate ring portion to the outside of the side wall. A third air ejection hole that is opened upward and constantly ejects air is provided,
On the downstream side of the trough, at a distance approximately equal to the radius of the thin plate ring portion in a direction perpendicular to the transfer direction from the side wall, in the transfer direction, the outer diameter of the thin plate ring portion is 2 or more. An upstream side and a downstream side stopper arranged at intervals smaller than twice, a component presence / absence detection sensor disposed on the upstream side close to the downstream side stopper to detect the presence / absence of the thin plate ring-shaped component, and A supply stage for the process is provided, and the thin plate ring-shaped component that is transferred to the downstream portion after the overlapping thin plate ring-shaped component and the face-down thin plate ring-shaped component are removed is in the stop position. From the state where the stopper on the downstream side is stopped, when the thin plate ring-shaped component is not present on the supply stage, the downstream side stopper is set to the stop release position, and the upstream side stopper is set to the stop position. It is, after the thin ring-shaped part which has been stopped at the downstream side is transferred to the supply stage,
After the component presence / absence detection sensor confirms that the thin plate ring-shaped component is absent, the downstream stopper is set to the stop position, the upstream stopper is set to the stop release position, and the subsequent stopper stopped by the upstream stopper is detected. The thin plate ring-shaped component is transferred and stopped by the downstream stopper, and then the component presence / absence detection sensor is stopped. During this time, the cycle in which the thin plate ring-shaped parts are picked up from the supply stage and disappeared is repeated, and the thin plate ring-shaped parts with no overlap and facing up are supplied one by one to the next step. Characterizing device for ring-shaped parts. 12. The feeding device for the ring-shaped component according to claim 11, wherein a large number of narrow grooves parallel to the transfer direction are formed on the transfer surface. 13. The trough of the linear vibrating parts feeder is provided with the groove in order to prevent the irradiation light from the stagnation detection sensor from being scattered by the groove provided on the transfer surface. The ring-shaped component feeding device according to claim 11 or 12, wherein a region of the transfer surface immediately below the stagnation detection sensor is a kerf having a flat bottom surface. 14. The stagnation detection sensor is provided as a linear array having a plurality of unit sensors in a direction traversing the transfer path from the side wall and having a length larger than a radius of the thin plate ring portion. The feeding device for the ring-shaped component according to claim 13. 15. The first air ejection hole and the second air ejection hole have an opening in the transfer surface and an opening inclined downward and parallel to the transfer surface at an upper end side of the inclination of the transfer surface. The feeding device for a ring-shaped component according to claim 14. 16. A fourth opening, which is in contact with the outer surface of the side wall and is open upward, on the downstream side of the third air ejection hole, in order to eliminate the thin plate ring portion that rides on the side wall while being transferred by vibration. The ring-shaped component feeding device according to any one of claims 11 to 15, wherein an air ejection hole is provided. 17. The air jet nozzle for blowing air to assist the transfer of air to the inner peripheral portion of the thin plate ring portion of the thin plate ring-shaped component transferred to the supply stage. The feeding device for the ring-shaped component according to claim 16. 18. The thin plate ring-shaped member, wherein the supply stage is disposed in the vicinity of the downstream side of the trough, and is an inclined surface aligned with the transfer surface of the trough when the thin plate ring-shaped component is transferred. The ring-shaped component feeding device according to any one of claims 11 to 17, wherein a horizontal surface is provided when the component is supplied to the next step. 19. A wall surface, which is provided in a spiral shape that rises along the inner surface of the peripheral wall of the bowl of the torsional vibration part feeder, in the vicinity of the upstream end of the trough of the linear vibration part feeder, and has the same slope as the inner surface of the peripheral wall. A downstream end of a track for transferring the thin plate ring-shaped component having a narrow L-shaped cross section and having a substantially right angle to the thin plate is arranged, and the thin plate is tilted and transferred to the side wall on the track. Overlapping wiper installed in parallel with the side wall with a gap for passing only one sheet-shaped component, and the thin plate ring-shaped component facing down, which is transferred with the protruding portion in contact with the side wall, drops and is eliminated. 19. A cutout having a narrowed width of the bottom surface is provided so that the thin plate ring-shaped component facing outward with the projection portion passing therethrough is provided. A feeding device for ring-shaped parts as described in 1. 20. A return path is provided for returning the thin plate ring-shaped component removed from the trough of the linear vibration part feeder into the bowl of the torsional vibration part feeder, and a return direction is provided on a surface of the return path. 20. The feeding device for a ring-shaped component according to claim 19, wherein a large number of parallel narrow grooves are formed.