JP5237602B2 - Parts supply device - Google Patents

Description

  The present invention relates to a component supply apparatus that aligns and conveys components such as a headed component and a hooked component in various shapes in an inclined state, and supplies the component to a screwing machine or the like after standing upright.

  Conventionally, in a device in which a screw of an example of a headed part is stirred by a stirring means or the like, a screw stirred and dropped by this stirring means is received at the rear end of the transport rail, and the screw is aligned and supplied to the final end of the transport rail. The rear end portion of the transport rail is installed with an inclination of a predetermined angle. This is to make it possible to easily receive the screw dropped by the stirring means.

  As an example of the component supply apparatus as described above, there is one disclosed in Patent Document 1. As shown in FIG. 7, the component supply device 101 is driven by a rotational drive source (not shown), a hopper 103 attached to a base 102 and capable of storing a large number of screws, and the rotational drive source. A fan-shaped blade 104 configured to scoop up components in the hopper 103 and a guide 109 for guiding the fan-shaped blade 104 are provided. The component supply device 101 has a rectilinear vibration portion 108 attached to the upper surface of the base 102. The rectilinear vibration portion 108 is provided with a transport rail 105 extending in a substantially horizontal direction. The transport rail 105 has two side walls over its entire length, and a guide groove 105a for suspending and guiding a screw is formed in the transport rail 105 by these side walls.

  As shown in FIGS. 8 and 9, the guide groove 105a at the retracted end of the transport rail 105 is inclined at a predetermined angle with the longitudinal direction as an axis, and is configured to hold the screw in an inclined manner. Further, a receiving plate 106 and a guide plate 107 are attached to the side wall of the retracted end of the transport rail 105. The receiving plate 106 and the guide plate 107 have as many screws scooped up by the sector blade 104 as possible. The guide groove 105a can be fed. Further, the transport rail 105 is formed with a cutout portion 110 having a cutout side wall located on the front end side of the receiving plate 106. The notch 110 is a screw loosely fitted in the guide groove 105a and is suspended in a cantilever state. On the other hand, an unaligned screw not loosely fitted in the guide groove 105a is provided in the hopper 103. It is configured to let it fall naturally. In addition, the transport rail 105 is configured to be screwed back in the direction in which the guide groove 105a stands up as it goes to the tip. With this configuration, only the screw loosely fitted in the guide groove 105a of the transport rail 105 is supplied in the most upright posture through the notch 110, and the screw is sucked by the air suction type screw tightening device. .

JP-A-60-102313

  In this apparatus, one end of the transport rail 105 is inclined in order to ensure that the screw scooped up by the sector blade 104 is loosely fitted in the guide groove 105 a of the transport rail 105. Therefore, when transporting a screw having a large head, when it reaches the notch 110 of the transport rail 105, the weight of the head of the screw will drop in an inclined downward direction on the upper surface of the transport rail 105, Alternatively, when a screw with a small head is transported, the contact area between the upper surface of the notch 110 of the transport rail 105 and the seat surface of the screw with the small head is small, so that when the vibration is applied to the transport rail, the head The screw with a small diameter drops and cannot be transported to the final end of the transport rail 105.

The component supply apparatus of the present invention has a stirring means for storing and stirring a large number of headed or hooked components, and a transport rail including a guide groove for hanging and guiding the components stirred by the stirring means. In the component supply apparatus, the transport rail includes a rotating member that inserts and holds a shaft disposed along the extending direction, and the rotating member pivots about the shaft to be inclined. It is characterized in that the angle can be changed. In addition, a shuttle unit that receives a component that has reached an inclined state and swings and rotates it upright is connected to the final conveyance end of the conveyance rail. The shuttle unit is arranged according to the inclination angle of the conveyance rail. The moving angle can be changed. Further, a member for slidingly guiding the lower end of the swinging and rotating shuttle unit is provided below the shuttle unit.

Component supply device of the present invention, if example embodiment, when transporting a small screw with a head, if inclining the conveyance rails so that the angle formed between the upper surface of the horizontal direction to the transporting rail is reduced, the screw conveying There will be no drop from the notch on the rail. On the other hand, when transporting a screw with a large head, if the transport rail is tilted so that the angle formed by the horizontal direction and the top surface of the transport rail is large, the screw is placed on the top surface of the transport rail. There will be no falling down the slope. Therefore, the component supply apparatus of the present invention can align and convey components such as a headed component and a hooked component of any shape to the final end of the conveyance rail. Further, the inclination angle of the transport rail can be changed with a simple configuration. Furthermore, the shuttle unit is configured to be able to change its swing angle. Thereby, it can respond to the change of the inclination-angle of a conveyance rail suitably, and becomes a component supply apparatus excellent in versatility. In addition, when any impact is applied from above the shuttle block, the work discharge member supports the shuttle block, thereby preventing damage to the rotary actuator connected to the shuttle block via the drive shaft. Can do.

  The best mode for carrying out the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes a component supply device for aligning and supplying screws as an example of a headed component. As shown in FIG. 2, the component supply device 1 of the present invention includes a motor 3 attached to a base 2. A drive roller mechanism 4 is attached to a drive shaft (not shown) of the motor 3 via a coupling 3b. The drive roller mechanism 4 is in a state in which a roller shaft 4a, a bearing base 4b that rotatably holds the roller shaft 4a at both ends of the roller shaft 4a, and a roller drum 4 to be described later are in close contact with the roller shaft 4a. A rotatable elastic ring 4c and a stopper 4d for regulating the position of the rotary drum 7 are configured. The base 2 is provided with a driven roller mechanism 5 disposed in parallel with the drive roller mechanism 4 at a predetermined interval. Parts stirring means are provided on the roller mechanisms 4 and 5. An example of the rotating drum 7 is placed, and is configured to be rotatable by the operation of the driving roller mechanism 4.

  As shown in FIG. 3, the rotary drum 7 is formed in a bottomed hollow cylindrical shape. The rotary drum 7 is formed of, for example, a transparent acrylic resin, and the remaining amount of screws (not shown) in the rotary drum 7. Can be confirmed. Further, a plurality of rake blades 8 are provided inside the rotary drum 7, and a screw scraped up by the rake blades 8 is configured to drop onto a post-feed rail 9 and a post-receiving plate 11. Yes.

  As shown in FIGS. 1 and 2, a rectilinear vibration part 12 is attached near the center of the base 2, and the rectilinear vibration part 12 is composed of a vibrator 12a, a leaf spring 12b, and a vibration table 12c. Yes. A transport rail fixing base 10 is fixed to the upper surface of the vibration table 12c, and the vibration base 12c and the transport rail fixing base 10 are configured to transmit vibration of the vibrator 12a to the transport rail 9. The transport rail 9 is configured to extend substantially horizontally with respect to the upper surface of the rectilinear vibration portion 12, and has two side walls 9b over the entire length thereof, and screws are loosely fitted by these side walls. A guide groove 9a having a sufficient width is formed.

  A shaft 13 is mounted on the upper surface of the transport rail fixing base 10 so as to extend in the same direction as the direction in which the transport rail 9 extends. A part of the curved surface of the shaft is sandwiched between both ends of the shaft 13. Thus, the rotating members 14, 14 are attached. Further, as shown in FIG. 4, the rotating member 14 is engaged with a bolt S that can adjust the degree of clamping between the rotating member 14 and the shaft 13. When the bolt S is loosened, the rotating member 14 is It is configured to be rotatable about the shaft as a fulcrum, and is fixed when the bolt S is tightened. Further, the rotating member 14 holds the conveying rail 9 so as to be in contact with the side surface and the bottom surface of the conveying rail 9. The rotating member 14 and the conveying rail 9 are integrated with each other to support the shaft 13. And the inclination angle of the transport rail 9 is determined.

  As shown in FIG. 3, the retracted end of the transport rail 9 is disposed so as to be surrounded by the rotary drum 7, and the screw scraped up by the rake blades 8 as the rotary drum 7 rotates is transported by the transport rail 9. Configured to fall onto the end of the. In addition, a receiving plate 11 is fixed to the retracted end of the transport rail 9 and is configured to feed a screw falling from the rotary drum 7 into the guide groove 9a. Further, the transport rail 9 is provided with a notch 17 having a side wall located on the forward side by the receiving plate 11, and the leg is not guided by the guide groove 9 a of the transport rail 9. An unaligned screw is configured to fall into the rotating drum 7 by natural fall.

  A holding member 15 for preventing the screw from being lifted is fixed to the transport rail 9 by a connecting plate 16, and the screw that has passed through the notch portion 17 by the operation of the linear vibration portion 12. Only is configured to reach the tip of the transport rail 9.

  An escape unit 20 shown in FIGS. 1 and 2 is connected to the front end of the transport rail 9. The escape unit 20 includes a fixture 21 erected on the base 2, a guide block 22 placed on the upper surface of the fixture 21, a rotary actuator 23 attached to a side surface of the guide block 22, A work discharge member 24 attached to the side surface of the fixture 21 on the side of the transport rail 9; a shuttle unit 25 attached to the side surface of the guide block 22 on the side of the transport rail 9 and positioned above the work discharge member 24; have. The shuttle unit 25 includes a columnar rotating body 26 and a shuttle block 27 that is placed so as to cover the upper curved surface of the rotating body 26.

  A substantially cylindrical guide block 22 is attached to the upper surface of the fixture 21. The lower part of the guide block 22 is cut horizontally, and the guide block 22 is attached to the fixture 21 so that the horizontal surface and the upper surface of the fixture 21 are in contact with each other. A shuttle unit 25 is attached to the side surface of the guide block 22 on the side of the transport rail 9, while a rotary actuator 23 having a drive shaft (not shown) is attached to the side surface of the guide block 22 facing this. Yes.

  The rotary actuator 23 is configured to reciprocate a drive shaft of the rotary actuator 23 by a predetermined angle by sucking and discharging air. The rotary actuator has a built-in angle adjustment mechanism 23a, and the rotation angle of the drive shaft of the rotary actuator can be determined by operating the angle adjustment mechanism 23a.

  The guide block 22 has a through hole (not shown) penetrating the center of both side surfaces thereof. The drive shaft of the rotary actuator 23 is inserted into the through-hole, and the drive shaft is inserted into the through-hole of the guide block 22 with the tip of the drive shaft protruding from the side surface of the guide block 22 on the side of the transport rail 9. It is designed to swing and rotate. The shuttle block 27 is attached to the tip of the drive shaft of the rotary actuator 23. The shuttle block 27 is formed so as to be connectable to the upper curved surface of the rotating body 26 and the side surface of the rotating body 26, and thus the rotating body 26 and the shuttle block 27 drive the rotary actuator 23. The shaft is integrated with the shaft so as to swing and rotate from the position shown in FIG. 5 to the position shown in FIG. Further, as shown in FIG. 2, a guide groove 22b is formed on the curved surface of the guide block 22 along the curved surface.

  As shown in FIGS. 1, 5, and 6, a work discharge member 24 is attached to the side surface of the fixture 21 so as to be positioned below the rotating body 26. The upper surface of the workpiece discharge member 24 is curved so as to be in contact with the curved surface of the rotating body 26, and the curved surface of the workpiece discharge member 24 and a part of the curved surface of the rotating body 26 are in contact with each other to slide. ing. For this reason, the work discharge member is disposed so as to support the shuttle unit 25 when an impact is applied from above the shuttle unit 25.

  As shown in FIGS. 5 and 6, the shuttle unit 25 is provided with a stepped through hole 25a so as to penetrate the shuttle block 27 and the rotating body 26, and the stepped through hole 25a. A stepped portion 25b is formed on the top of the plate. Further, the stepped portion 25b of the stepped through hole 25a of the shuttle unit 25 is formed by cutting out in a horizontal direction so as to penetrate both side surfaces of the shuttle block 27 in a state where the shuttle block 27 stands upright. A screw receiving plate 28 is slidably inserted into the stepped portion 25b. The front end of the screw receiving plate 28 is formed with a holding groove 28a for receiving and holding the screw that has reached the final end of the transport rail, and the rear end of the screw receiving plate 28 is a side surface of the shuttle block 25. It has a length protruding from.

  The shuttle block 27 of the shuttle unit 25 is provided with a sensor mounting hole 29a so as to intersect the stepped through hole, and the sensor 29 is built in the sensor mounting hole. When a screw is supplied to the screw receiving plate 28, the sensor 29 senses the screw and issues an upright command signal to the rotary actuator 23 to rotate the drive shaft 23a of the rotary actuator 23 by a predetermined angle. As a result, the shuttle unit 25 is configured to swing to a position where the screw stands upright.

  As shown in FIG. 1, an L-shaped guide 32 is attached to the front side surface of the transport rail 9 so as to slide on the right side surface of the shuttle block 27. When swinging, the screw held on the screw receiving plate 28 of the shuttle block 27 is prevented from falling off.

  The screw receiving plate 28 is covered with a guide member 30, and the guide member 30 is placed on the upper surfaces of the shuttle block 25 and the guide block 22. Further, an engagement member 28b that can be engaged with the guide groove 22b of the guide block 22 is attached to the rear end of the screw receiving plate 28, and the engagement member 28b slides on the guide groove 22b. In addition, the screw receiving plate 28 is configured to slide on the stepped portion 25b as the shuttle block 25 swings. Specifically, as shown in FIG. 5, when the shuttle unit 25 is in a position where it can receive a screw that has been inclined at a predetermined angle and has reached the final end of the transport rail 9, the screw receiving plate 28 is transported. The end of the rail 9 is connected to receive the screw. In addition, as shown in FIG. 6, when the shuttle unit 25 swings and the screw held by the screw receiving plate 28 reaches the upright position, the screw receiving plate 28 moves backward to the screw receiving plate 28. The head of the screw that is held is pushed by the guide member 30. Then, the screw slides down from the holding groove 28 a of the screw receiving plate 28 into the stepped through hole 25 a of the shuttle unit 25 and reaches the workpiece discharge member 24.

  The work discharge member 24 is provided with a discharge hole 24a extending in the vertical direction. The discharge hole 24a and the stepped through hole 25a of the shuttle unit 25 communicate with each other when the shuttle unit 25 is upright. It is configured as follows. The discharge member 24 is formed with a pressure feed hole (not shown) communicating with the discharge hole 24a of the discharge member 24, and a pressure feed means 31 is attached to the opening end of the pressure feed hole. . Therefore, the screw falls from the stepped through hole 25a of the shuttle unit 25 to the discharge hole 24a formed in the work discharge member 24, and is pumped by the pressure feeding means 31 communicating with the discharge hole 24a, and is sent to a screw tightener or the like. The screw is supplied.

  In the component supply apparatus 1 having such a configuration, the inclined fulcrum of the transport rail 9 and the rotation center point of the drive shaft of the rotary actuator 23 are arranged on the same axis, and the transport The upper surface of the rail 9 and the upper surface of the screw receiving plate 28 are arranged so as to be in the same plane. Therefore, if the rotation range of the drive shaft of the rotary actuator 23 is determined by the angle adjusting mechanism 23a of the rotary actuator 23 in conjunction with the inclination angle of the transfer rail 9, the transfer rail 9 can be transferred at any inclination angle. The upper surface of the rail 9 and the upper surface of the screw receiving plate 28 can be connected to each other, so that the screw reaching the final end of the transport rail 9 in an inclined state can be received in an inclined state, and the screw can be erected.

It is a front view of the present invention It is a top view of the present invention. It is an AA line expanded sectional view of FIG. It is a BB line principal part expanded sectional view of FIG. 1, and is a figure which shows the fluctuation | variation of the inclination angle of a conveyance rail. It is a principal part expanded sectional view which shows the state which the shuttle unit inclined. It is a principal part expanded sectional view which shows the state in which the shuttle unit stood upright. It is a figure which shows the conventional component supply apparatus. FIG. 8 is an enlarged cross-sectional view taken along line CC in FIG. 7. It is the DD sectional view taken on the line of FIG.

1 Parts supply device
2 base
3 Motor
3a Drive shaft
3b coupling
4 Drive roller mechanism
4a Roller shaft
4b Bearing stand
4c Elastic ring
4d stopper
5 Driven roller mechanism
7 Rotating drum
8 rake feathers
9 Transport rail
9a Guide groove
9b side wall
10 Transport rail fixing base
11 Back plate
12 Straight vibration part
12a Vibrator
12b leaf spring
12c Shaking table
13 Shaft
14 Rotating member
15 Holding member
16 Connecting plate
17 Notch
20 Escape unit
21 Fitting
22 Guide block
22b Guide groove
23 Rotary actuator
23a angle adjustment mechanism
24 Work discharging member
24a discharge hole
25 Shuttle unit
25a Stepped through hole
25b Stepped part
26 Rotating body
27 Shuttle block
28 Screw receiving plate
28a Holding groove
28b engagement member
29 sensors
29a Sensor mounting hole
30 Guide members
31 Pressure feeding means
S bolt
32 Guide
101 Parts supply device
102 base
103 Hopper
104 Fan blade
105 Transport rail
105a Guide groove
106 Back plate
107 Guide plate
108 Straight vibration part
109 Guide
110 Notch

Claims (3)

In a parts supply apparatus having a stirring means for storing and stirring a large number of headed or hooked parts, and a conveying rail provided with a guide groove for suspending and guiding the parts stirred by the stirring means,
The transport rail includes a rotating member that inserts and holds a shaft disposed along the extending direction, and the rotating member pivots about the shaft so that the inclination angle can be changed. A component supply device characterized by being configured. A shuttle unit for receiving a component that has reached an inclined state and swinging and rotating it upright is connected to the final transport end of the transport rail, and the swing angle of the shuttle unit depends on the tilt angle of the transport rail. The component supply device according to claim 1, wherein the component supply device is configured to be changeable. The component supply device according to claim 2, wherein a member that slides and guides a lower end of the swinging and rotating shuttle unit is provided below the shuttle unit.

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