JP4196444B2 - Parts supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component supply device for adjusting a vertical direction of a thumbtack-like component having a short leg and supplying it to the next process.
[0002]
[Prior art]
As shown in FIG. 1, there is a demand for supplying minute screws S having short legs L as an example of thumbtack-shaped parts in a row with the top plate T facing up. Incidentally, the diameter of the top plate T of the screw S is 2 mm, the diameter of the substrate B is 1.2 mm, the diameter of the leg L is 0.5 mm, the total height is 1.5 mm, and the length of the leg L is 1.1 mm. It is. In order to supply in the posture as shown in FIG. 1, the component S is transferred in a suspended posture. In order to stabilize the suspended posture, the leg portion L is sandwiched between the lower surfaces of the substrates B on both sides. In the following description, the top plate T and the substrate B are collectively referred to as a top plate portion H. Conventionally, such a small screw S with a short leg L (hereinafter referred to as a component S) has a large top plate H, so that it faces down or overlaps, and the lower end of the leg L is moved during transfer. The posture is difficult to be fixed, for example, the peripheral edge of the top plate rolls around the center, and for this reason, no parts supply device has been developed that moves the plate up and down.
[0003]
[Problems to be solved by the invention]
This invention is made | formed in view of the above-mentioned problem, and makes it a subject to provide the components supply apparatus which can arrange the up-and-down direction about the thumbtack-shaped components with a short leg part, and can supply to the following process.
[0004]
[Means for Solving the Problems]
The above problem is solved by the structure of claim 1 and claims dependent thereon. The means for solving the problem will be described below.
[0005]
The component supply apparatus according to claim 1 is a bowl that accommodates and feeds a thumbtack-like component having a top plate portion and a leg portion suspended from the top plate portion, and a drive unit that applies torsional vibration to the bowl. In the component supply apparatus, the bowl forms a groove that hangs down while accommodating the leg portion, and the lower surface of the top plate portion is formed from two different locations by using an edge portion on the opening side of the groove. And a suspension track that can be transported in a posture in which the component is suspended. The suspension track communicates with a side wall of the groove and is larger than an outer diameter of the leg portion. There is a track missing part with a width smaller than the outer diameter, and on the side opposite to the groove side of the track missing part, there is formed an exclusion hole that communicates with the track missing part and allows the top plate part to pass through. The track missing part and the removal hole are for parts having postures other than the suspended posture. From the rack missing part and elimination holes that have been eliminated it can be formed thereunder.
[0006]
The component supply device according to claim 2 is formed on an inclined surface that is inclined downward as the removal hole moves away from the track missing portion , and the component having the leg portion fitted into the track missing portion does not fall out of the removal hole. Eliminated by sliding down the slope. According to a third aspect of the present invention, there is provided a component supply device in which a downward step is provided between the suspended track on the upstream side of the track missing portion and the suspended track on the downstream side, and the components crossing the track missing portion are located downstream. The transportation is not delayed by hitting the side suspension truck.
[0007]
According to a fourth aspect of the present invention, there is provided an air supply nozzle for injecting air from the side of a component to be transported on a suspended track, and the component transported sideways with the top plate portion side. Eliminate by blowing away. According to a fifth aspect of the present invention, there is provided the component supply apparatus, wherein the component is blown by an air ejection nozzle provided from one side of the suspension truck toward the suspension track and then from the other side toward the suspension track. Blow down to the side where it is easy to drop.
[0008]
The component supply device according to claim 6 is provided with a V-shaped track having a V-shaped cross section on the upstream side of the suspension track, and the peripheral edge of the top plate portion rolls down the side wall of the V-shaped track. The part orients its axis in the transport direction. According to a seventh aspect of the present invention, there is provided a component supply apparatus, wherein a groove into which a leg portion of the component enters is formed at the bottom of the V-shaped track, and the component is transferred after the leg portion is positioned.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The component supply device of the present invention is provided in a bowl of a vibrating parts feeder that accommodates and feeds a thumbtack-shaped minute part composed of a top plate portion and a leg portion suspended from the center portion of the top plate portion. In the middle of a suspended truck that supports the lower surface from both sides and transports parts, a track missing part with a width larger than the outer diameter of the leg part of the part, and the side of the truck missing part from the top plate part An exclusion hole with a large outer diameter is formed, and parts that are transported in an irregular posture are fitted with their legs fitted into the track missing part, falling down from the exclusion hole and eliminated Is.
[0010]
Hereinafter, the component supply apparatus 1 according to the embodiment of the component S will be specifically described with reference to the drawings. That is, FIG. 2 is a side view of the component supply apparatus 1 and FIG. 3 is a plan view thereof. The component supply apparatus 1 includes a bowl 21 that accommodates and arranges the component S and a drive unit 11 that applies torsional vibration to the bowl 21. It has become.
[0011]
In the drive part 11, with reference to FIG. 2, the movable block 12 integral with the bottom plate of the bowl 21 is connected with the lower fixed block 14 by the inclined leaf | plate spring 13 arrange | positioned at equal angle intervals. And the electromagnet 16 which wound the coil 15 is embedded and installed in resin 11r facing the movable core 12c of the lower surface of the movable block 12. FIG. And the drive part 11 is being fixed on the support plate 19 via the anti-vibration rubber | gum 17 attached to the leg | foot 18 which can be rotated, and the support plate 19 is the height adjustment fixed to the base | substrate 20 on a floor surface. It is supported by a bolt 19b.
[0012]
With reference to FIG. 3, the bowl 21 is fixed to the movable block 12 of the drive unit 11 with a center bolt 22 b at the center of the bottom surface 22. A flat track 24 having a starting point 24 s in the periphery of the bottom surface 22 and an inclined surface 25 on the inner peripheral side thereof are provided so as to rise spirally in contact with the peripheral wall 23 of the bowl 21. It becomes a transfer path. In the middle of the flat track 24, a flow rate adjustment block 26 is provided on the peripheral wall 23 and above the flat track 24, and the parts S that are transported in an overlapping manner are broken down and dropped into a notch 27a almost directly below. The flow rate is adjusted. In addition, the width of the flat track 24 is narrowed by the notches 27b and 27c on the downstream side, and the parts S that are transferred excessively are returned to the bottom surface 22 of the bowl 21 from the notches 27a to 27c. Yes.
[0013]
Immediately downstream of the notch 27c, the round track 34 is connected to the flat track 24 and is formed in an arc shape convex to the outer peripheral side, and the parts S are collected at the bottom of the round track 34 to form a row. Transported. A posture selection unit 40 occupying the main part of the present invention is connected to the downstream side of the round truck 34. 4 is an enlarged view of the posture selection unit 40, and FIG. 5 is a cross-sectional view taken along the line [5]-[5] in FIG. That is, referring to FIG. 4, the posture selection unit 40 is provided with a straight track portion 43A and a straight track portion 43B in order from the upstream side, followed by a first exclusion hole portion 53A and a first air ejection portion 63A. The second air ejection part 63B and the second exclusion hole part 53B are arranged, and these are formed by fixing a base material block to a peripheral part obtained by machining the peripheral wall 23 of the bowl 21 into a flat shape. Hereinafter, these components will be described in order.
[0014]
The straight track portion 43A is formed in a block 41A fixed to the peripheral portion of the bowl 21 with a bolt 41Ab, and is connected via a step 42 downward from the downstream end of the upstream round track 34. The straight track portion 43A is formed with a V-shaped groove 44A having an opening angle of 90 degrees with reference to FIG. 7, which is a cross-sectional view taken along line [7]-[7] in FIGS. The bottom is rounded with 1R. The step 42 faces the upstream round track 34 facing down, that is, the component S transferred with the top plate portion H facing down falls, and the peripheral edge of the top plate portion H is above the V-shaped groove 44A. And the lower end of the leg portion L are provided so as to be brought into contact with each other and transferred. Then, the component S is collected at the bottom portion of the V-shaped groove 44 </ b> A with the peripheral edge of the top plate portion H rolling down the side wall, with the axis centered in the transfer direction.
[0015]
A linear track portion 43B is provided following the linear track portion 44A. Referring to FIG. 8, which is a cross-sectional view taken along line [8]-[8] in FIGS. 4, 5, and 3, linear track portion 44B is formed in block 41B following block 41A on the upstream side. A shallow groove 46 into which the leg portion L of the component S is fitted is formed at the bottom of the V-shaped groove 44B similar to the upstream V-shaped groove 44A in the straight track portion 44B. That is, the component S is moved by positioning the leg portion L by fitting the leg portion L into the shallow groove 46.
[0016]
A first exclusion hole 53A is connected to the downstream side of the straight track portion 43B. 4 and 5, FIG. 6, which is a plan view of a second exclusion hole 53 </ b> B similar to the first exclusion hole 53 </ b> A, and FIG. 9, which is a cross-sectional view in the [9]-[9] line direction in FIG. 3. Referring to the first exclusion hole 53A, a flat suspension track 51d, which will be described later, is formed in a block 51 fixed to the peripheral edge of the bowl 21, but the first exclusion hole 53A includes a component S. A suspension track 54A having a width of 0.5 mm on one side for transporting the component S in a suspended posture in which the lower surface of the top plate portion H is supported from both sides and the leg portion L is suspended in the groove 52 having a width of 0.6 mm. The two sides are inclined surfaces 55A having a downward inclination angle of 30 degrees. A missing portion 54k having a width of 0.6 mm is provided in the middle of the suspension track 54A, and a circular shape having a larger outer diameter than the top plate portion H of the component S is formed on both inclined surfaces 55A following the missing portion 54k. An exclusion hole 57A is formed. The exclusion hole 57A is provided in order to exclude the component S which is transferred in an irregular posture in the suspension track 54A together with the inclined surface 55A. Further, the part S falling from the exclusion hole 57A and the part S sliding down the inclined surface 55A are returned to the bottom surface 22 of the bowl 21 via the lower reflux slope 59A. Furthermore, a slight level difference 56A is formed between the upstream side and the downstream side of the missing part 54k of the suspension track 54A with the missing part 54k interposed therebetween. This is to prevent the board B or the like constituting the top plate portion H from being caught on the suspension truck 54A on the downstream side and hindering the transfer when passing the missing portion 54k.
[0017]
A first air ejection portion 63A is connected downstream of the first exclusion hole portion 53A, following the planar suspension track portion 51a. The planar suspension track portion 51a is the same as the planar suspension track portion 51c shown in FIG. Referring to FIG. 10, which is a cross-sectional view in the [10]-[10] line direction in FIGS. 4, 5, and 3, the first air ejection portion 63A is a suspension track 54A on the upstream side across the groove 52. A suspension track 64A similar to the above is formed, and both sides thereof are inclined surfaces 65A having a downward inclination angle of 30 degrees. Piping members 67a, 67b, and 67c are assembled across the suspension track 64A and fixed to the peripheral wall 23 of the bowl 21, and the compressed air piping 66a is connected to the piping member 67a. An air ejection nozzle 68 is provided substantially horizontally toward the suspension track 64A at the lower end of the piping member 67c on the circumferential side. The parts S that slide down the inclined surface 65A on the outer peripheral side gather in the outer peripheral groove 58 formed on the outer peripheral side of the peripheral portion of the bowl 21, and the outer peripheral groove 58 communicates with the above-described reflux inclined surface 59A.
[0018]
Further, a second air ejection part 63B similar to the first air ejection part 63A is connected to the downstream side of the first air ejection part 63A, following the short planar suspension track part 51b. The difference between the second air ejection part 63B and the first air ejection part 63A is that the air ejection nozzle 69 is provided immediately above the inclined surface 65B on the outer peripheral side.
[0019]
A planar suspension track portion 51c is connected to the downstream side of the second air ejection portion 63B. The planar suspension track portion 51c is configured by a groove 52 provided in the block 51 with reference to FIG. 11 which is a cross-sectional view taken along line [11]-[11] in FIG. The block 51 is fixed to the peripheral edge of the bowl 21 with a round screw 50b. FIG. 11 also shows the compressed air piping 66b, the piping member 67d, and the air ejection nozzle 69 of the upstream second air ejection portion 63B. Referring to FIGS. 4 and 5, the second suspension hole 53B is connected to the planar suspension track 51c for double check. Since the second exclusion hole 53B is configured in the same manner as the first exclusion hole 53A on the upstream side, description thereof is omitted. And the downstream side of the 2nd exclusion hole 53B becomes the planar suspension track part 51d.
[0020]
With reference to FIGS. 2 and 3, the flat suspension track 51 d is attached with a feeding portion 73 at an inclination angle of 30 degrees downward via an arc portion. Referring to FIG. 12, which is a cross-sectional view taken along the line [12]-[12] in FIG. 3, the rectifying unit 73 is connected to the inner attachment member 79 fixed to the outer peripheral side of the bowl 21 and the rectifying track 74. A track member 76 having a notch to be formed is fixed together with an outer mounting member 77 by bolts 77b. On the outer mounting member 77, a holding plate 76 is fixed with bolts 76b via spacers 75, and the component S is fitted with the leg portion L in the groove 72 and the lower surface of the top plate portion H is supported by the feeding track 74. And transferred.
[0021]
The component supply apparatus 1 of the present embodiment is configured as described above, and the operation thereof will be described next.
[0022]
Referring to FIG. 3, it is assumed that many parts S are accommodated on the bottom surface 22 of the bowl 21. At this time, there are parts S in which the peripheral edge of the top plate portion H and the lower end of the leg portion L are in contact with the bottom surface 22 and those in which the top plate portion H is down. When the alternating current is applied to the coil 15 of the drive unit 11 shown in FIG. 2, torsional vibration is given to the bowl 21, and the part S on the bottom surface 22 is moved to the peripheral part and transferred in the direction indicated by the arrow m. Then, it gets on the flat track 24 from the starting point 24s. The parts S are transported on the flat track 24 and reach the flow control block 26. However, the overlapping parts S are prevented from being transported and destroyed by the protruding member 26a overhanging just above the flat track 24. In addition, since the notch 27a is formed almost immediately below the protruding member 26a, among the broken parts S, parts other than the part S transferred in contact with the peripheral wall 23 fall into the notch 27a and fall in the bowl 21. Returned to the bottom surface 22. The component S is further transferred to the flat track 24, and the flow rate is adjusted by the notches 27b and 27c narrowing the track width to reach the round track 34.
[0023]
The parts S transferred to the round truck 34 are gathered at the bottom and transferred in a row with their posture and orientation being indefinite. Then, a downward step 42 formed at the downstream end of the round track 34 is dropped and moved to the V-shaped groove 44A of the linear track portion 43A on the downstream side. At this time, many of the facing parts S with the top plate portion H facing down are in a posture in which the peripheral edge of the top plate portion H and the lower end of the leg portion L are in contact with the V-shaped groove 44A when the step 42 is dropped. . Referring to FIG. 7, the component S is transferred through the V-shaped groove 44A of the straight track portion 43A. During that time, the periphery of the top plate portion H rolls down the side wall, so that the component S has its own axis in the transfer direction. Turning now, the component S at this time is a state in which a part with the leg part L in front of the top plate part H and a part with the leg part L behind are mixed.
[0024]
The component S is transferred from the linear track portion 43A to the linear track portion 43B. However, as shown in FIG. 8, the leg portion L is dropped into the shallow groove 46 formed at the bottom of the V-shaped groove 44B. The leg L is positioned almost in a standing posture, and the downstream side first exclusion hole 53A is shifted to.
[0025]
In the first exclusion hole 53A, as shown in FIG. 9, the component S is suspended and transferred by the suspension track 54A. At this time, the component S that cannot be in the suspended posture is inclined on both sides. 55A is slid down and returned to the bottom surface 22 of the bowl 21 through the lower reflux track 59A. FIG. 6 is a plan view of a second exclusion hole 53B similar to the first exclusion hole 53A. FIG. 6A is a part in which the suspension track 54B is transferred by hanging the leg L in the groove 52. The state of S is shown. However, as described above, not all the parts S are in such a normal posture, and as shown in FIG. 6B, the part S sandwiching the top plate portion H in the groove 52 is suspended from the suspended track 54B. The leg L fits into the missing part 54k and falls and is eliminated. In addition, the part S that is transported with a slight inclination to the side even if it is close to the normal suspension posture falls into the missing portion 54k, and the top plate portion H falls downward via the exclusion hole 57B.
[0026]
Returning to the first exclusion hole 53A, the component S that is facing away moves sideways while being transported through the suspension track 54A and falls into the exclusion hole 57A or slides down the inclined surface 55A and is removed. Is done. Further, as shown in FIG. 5, since a downward step 56A is provided between the upstream side and the downstream side of the missing part 54k of the suspension track 54, the part S in the normal suspension posture is missing part 54k. The board B on the leg L and the top plate portion H of the succeeding component S protrude below the rear end portion of the preceding component S when passing over The front end of the top plate portion H of the preceding component S is not caught by the suspension track 54A on the downstream side and the transfer is not stopped.
[0027]
The part S that has passed through the first exclusion hole 53A is transported through a planar suspension track 51a similar in cross section to the planar suspension track 51c shown in FIG. 11, and reaches the first air ejection portion 63A. In the first air ejection part 63A, as shown in FIG. 10, the part S straddling on one suspension track 64A is blown off by the air ejection nozzle 68 from the inner peripheral side of the bowl 21. It falls into the outer peripheral groove 58. The component S in the normal posture passes through the first air ejection portion 63A as it is, and reaches the second air ejection portion 63B through the short planar suspension track 51b, but as shown in FIG. 4, the second air ejection portion 63B. Since air is ejected from the outer peripheral side to the component S, the component S which is not in a normal posture but was not blown off by the first air ejection portion 63A is blown off.
[0028]
The part S that has passed through the second air ejection part 63B reaches the second exclusion hole part 53B through the planar suspension track 51c shown in FIG. 11, and the action of the second exclusion hole part 53B is the first exclusion hole part 53A. The part S which is not in the normal suspension posture falls from the exclusion hole 57B or slides down the inclined surface 55B, and is returned to the bottom surface 22 of the bowl 21 through the reflux slope 59B. Then, the sheet is transferred to a downwardly inclined feeding section 73 through a planar suspension track 51d similar to the planar suspension track 51c of FIG.
[0029]
As shown in FIG. 12, in the rectifying unit 73, the component S is prevented from popping out by the plate 76 by suppressing the rectifying track 74 formed together with the groove 72 by the outer mounting member 77 and the track member 78, as shown in FIG. In such a state as shown in (1), it is supplied from the downstream end to the next process.
[0030]
Although the component supply apparatus 1 of this Embodiment is comprised and acts as mentioned above, of course, this invention is not restricted to this, A various deformation | transformation is possible based on the technical idea of this invention.
[0031]
For example, in the present embodiment, for example, the step 56A is provided between the upstream side and the downstream side of the missing portion 54k of the suspension track 54A of the first exclusion hole 53A. Therefore, even if the step 56A is eliminated, the stagnation of the transfer does not occur immediately. The reason why the step 56A is provided in the embodiment is that the transfer reliability is improved by the step 56A.
[0032]
In the present embodiment, the torsional vibration is applied to the bowl 21 and the component S is transferred. However, the bowl 21 may be transferred by applying elliptical vibration.
[0033]
Moreover, in this Embodiment, although illustrated as a component which feeds the micro screw S, as long as it is the same thumbtack-shaped component, the kind and dimension of components are not limited.
[0034]
【The invention's effect】
The component supply apparatus of the present invention is implemented in the form as described above, and has the following effects.
[0035]
According to the component supply device of claim 1, since it is possible to efficiently eliminate the non-regular posture of the thumbtack-like minute component, the posture is adjusted to the posture with the top plate portion facing up and smoothly supplied in a row. can do.
[0036]
According to the component supply device of the second aspect, components whose top plate portion is removed from the exclusion hole can be eliminated by sliding down the inclined surface. According to the third aspect of the present invention, since the suspension track on the downstream side of the missing portion is formed with a step in the downward direction, when the component in the normal posture passes the step, the downstream side It is possible to prevent the stagnation of the transfer due to being caught on the suspension truck.
[0037]
According to the component supply apparatus of the fourth aspect, the components that are in the non-regular posture but are not excluded by the exclusion hole can be excluded by the ejection air. Moreover, according to the component supply apparatus of Claim 5, since air is jetted in a mutually reverse direction, exclusion by jet air is performed more reliably.
[0038]
According to the component supply apparatus of the sixth aspect, the components can be transferred at the bottom of the V-shaped groove in a row with the axis centered in the transfer direction. Moreover, according to the component supply apparatus of Claim 7, since the leg part of a component is positioned, the transition to the suspension posture in the downstream is facilitated.
[Brief description of the drawings]
FIG. 1 is a perspective view of a component to be supplied.
FIG. 2 is a side view of the component supply apparatus.
FIG. 3 is a plan view of the same.
FIG. 4 is an enlarged plan view of a posture selection unit.
5 is a cross-sectional view taken along the line [5]-[5] in FIG. 4;
FIG. 6 is an enlarged plan view of an exclusion hole, where A indicates the transfer of a part in a normal posture and B indicates the removal of a part in a non-normal posture.
7 is a cross-sectional view taken along line [7]-[7] in FIG.
8 is a cross-sectional view taken along line [8]-[8] in FIG.
9 is a cross-sectional view taken along line [9]-[9] in FIG.
10 is a cross-sectional view taken along line [10]-[10] in FIG.
11 is a cross-sectional view taken along line [11]-[11] in FIG.
12 is a cross-sectional view taken along line [12]-[12] in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Parts supply apparatus 21 Bowl 24 Plane track 34 Round track 44A V-shaped groove 45A V-shaped groove 46 Shallow groove 52 Groove 54A Suspension track 54B Suspension track 55A Inclined surface 55B Inclined surface 57A Exclusion hole 57B Exclusion hole 64A Suspension track 64B Suspended truck 68 Air ejection nozzle 69 Air ejection nozzle 74

Claims (7)

In a component supply apparatus comprising a bowl for accommodating and feeding a thumbtack-shaped component having a top plate portion and a leg portion suspended from the top plate portion, and a drive unit that imparts torsional vibration to the bowl ,
The bowl forms a groove that hangs down while accommodating the leg portion, and uses the edge portion on the opening side of the groove to support the lower surface of the top plate portion from two different locations to suspend the component. A suspension truck that can be transported in a suspended position;
The suspension track communicates with the side wall of the groove and has a track missing portion having a width larger than the outer diameter of the leg portion and smaller than the outer diameter of the top plate portion,
On the side opposite to the groove side of the track missing part, an exclusion hole is formed which communicates with the track missing part and allows the top plate part to pass through.
The track missing portions and elimination hole, the component supply device according to claim Rukoto have parts posture other than the suspended posture is eliminated can be formed on its downward from the track missing part and elimination hole. The component supply device according to claim 1,
The component supply device according to claim 1, wherein the exclusion hole is formed in an inclined surface that is inclined downward as it is away from the track missing portion . The component supply device according to claim 1 or 2,
The suspension supply device according to claim 1, wherein a step is formed between the suspension track on the upstream side of the track missing portion and the suspension track on the downstream side . The component supply device according to any one of claims 1 to 3,
An air ejection nozzle that ejects air from the side toward the component to be transported through the suspension track, and a side from which the component in a posture other than the suspended posture to be blown down slides from the suspension track. A component supply device, comprising: an inclined surface that is inclined downward as it leaves . The component supply device according to claim 4,
The air supply nozzle is provided on one side of the suspension track, and is provided on the other side of the suspension track on the downstream side thereof . The component supply device according to any one of claims 1 to 5,
A V-shaped track having a V-shaped cross section is provided on the upstream side of the suspension track,
The component supply is characterized in that the V-shaped track is formed so that a peripheral edge of the top plate portion of the component rolls down a side wall of the V-shaped track downward, and the component has an axis oriented in a transfer direction. apparatus. The component supply device according to claim 6,
A shallow groove is formed at the bottom of the downstream portion of the V-shaped track, or at the bottom of a similar V-shaped track to be connected, into which only the leg of the component can enter, and the component defines the leg as described above. The component supply device , wherein the leg portion is positioned and transferred by being fitted into a shallow groove .

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