JPH06144545A - Alignedly conveying device for headed part - Google Patents

Abstract

PURPOSE:To miniaturize an alignedly conveying device for headed parts for reducing the manufacturing expenses thereof, and to enable the headed parts to be automatically and alignedly conveyed sideways into a conveying passage outside a hopper without remaining the headed parts inside the hopper. CONSTITUTION:An alignedly conveying device is provided with a hopper 1 for housing a plurality of headed parts, blades 3 which have been provided inside the hopper 1 so as to be vertically movable and by which a pair of vertical wall parts having an inclined surface have been formed, a receiving base 7 for receiving headed parts on which both a slope nearly equal to the slope of the inclined surface of the blade 3 and a slope that is continuous with this slope and gradually downwards inclined towards the blade 3 are formed, and a conveyance guide plate 13 on which a circular arc continuous with the inclined surface of the vertical wall part of the blade 3 when the blade is placed in the position of the upper dead center has been formed. Further, the device is provided with a spring-out preventing plate 15 for the headed parts that has been provided along the conveyance guide plate 13 at a short distance therefrom, and a position changing member for changing the position of the headed parts inside the hopper 1, or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for aligning and conveying headed parts suitable for aligning and carrying parts having heads such as screws.

[0002]

2. Description of the Related Art Conventionally, as a device of this type, as shown in, for example, Japanese Patent Publication No. 1-41567 (Prior Art 1), a pair of headed parts conveyed from a bucket conveyor rotate. A technique is disclosed in which a linear roll is guided by a parallel roll and passes through a pair of rotating conical axes to be aligned by a straight-line feeder provided with a standing wall portion.

As another technique, there is known a technique (prior art 2) in which a blade provided with a pair of standing wall portions is vertically swung in a hopper to align headed components.

Further, when the headed parts are mounted sideways and assembled, they are aligned and conveyed sideways by a link mechanism or a robot (Prior Art 3).

[0005]

In the apparatus constructed as the prior art 1, since the bucket conveyor, the pair of parallel rolls, and the pair of conical shafts are provided, the required space is large and the equipment cost is high. There are problems such as sticking.

Also in the prior art 2, when the cylinder is used, the reciprocating motion must be converted into the rotary motion, and when the motor is used, the reduction gears must be used, so that the required space is large. In addition, there is a problem that the device cost is high.

The prior art 3 also has the problems that the required space is large and the device cost is high.

Therefore, it is an object of the present invention to reduce the apparatus cost by downsizing the apparatus for aligning and carrying headed parts, and to laterally align and carry the headed parts.

It is another object of the present invention to automatically align and convey the headed parts housed in the hopper without leaving them in the hopper.

[0010]

[Means for Solving the Problems]

(1) With the head of the headed part in the hopper facing upwards, the lower surface of this head is supported from both sides and the lower neck part is hung so that it slides under its own weight so that a pair of slopes A blade having a standing wall portion is vertically movably provided in a hopper that accommodates a large number of headed parts.

(2) With the head of the headed part facing up, the lower surface of this head is supported from both sides, and the lower part of the neck is hung down, and once placed on the standing wall of the blade, the blade is removed. The width of the blade is configured to be larger than the head diameter of the headed component so that the blade does not drop even if it moves downward and collides with other headed components, and is positioned as it is on the standing wall and moved up. .

(3) If the headed component is abnormally positioned on the sloped wall of the blade when the blade moves upward, the headed component may be caught between the blade and the opening of the hopper. Therefore, an upper cutout is provided in this opening, and when the headed component is positioned laterally in the opening and closes the opening, the position does not change even if the blade moves downward, A lower cutout is provided.

(4) In order to align the headed parts housed in the hopper without leaving them in the hopper, the inside of the hopper is formed with a slope substantially the same as the blade and a slope inclined downward toward the blade. A pedestal for headed parts is provided.

(5) In order to laterally align and convey the headed parts outside the hopper, an arc and a pair of vertical wall parts perpendicular to the arc are formed outside the hopper connected to the opening of the hopper. At the position where the transport guide plate is separated from the head thickness of the headed component outside the transport guide plate by a distance, an arc larger than the arc of the transport guide plate and a headed component having a perpendicular line connecting to this arc are formed. Is provided with a jump-out prevention plate.

(6) A sensor is provided for detecting the presence / absence of a specific amount of the headed component in order to stop or start the vertical movement of the blade when the headed component is aligned and conveyed.

(7) At the lower part of the standing wall part of the pair of slopes of the blade, the position of the headed part which is not positioned in a state where the lower surface of the head of the headed part is not supported from both sides and the lower neck part is hung down is set. A position changing member for changing is located between the pair of vertical standing wall portions of the blade and is fixed to the hopper.

(8) The position changing member is inclined toward the slope of the blade and the pedestal of the headed part so that the headed part is not positioned on the position changing member when the blade moves downward. The slope is formed.

[0018]

[Action]

(1) A large number of headed parts of the same shape are housed in a chaotic manner in the hopper, and when the blade moves upward, the heads of the headed parts are caused by the pair of sloped standing walls of the blade. With the lower surfaces of the parts supported from both sides and the under-neck parts hanging down, the headed parts are aligned and moved while sliding on the inclined surface of the blade, pass through the openings of the hopper, and are aligned and transported to the transport path outside the hopper.

At this time, the headed component located at the lowermost part of the standing wall portion of the inclined surface of the blade moves upward while sliding on the inner surface of the hopper.

(2) Since the width of the blade is formed larger than the head diameter of the headed component, once the lower surface of the head of the headed component is supported from both sides by the sloped wall of the blade, the lower neck is supported. When placed in the hung state, it will not interfere with other headed parts while the blade is moving downward, and it will move downward and upward while keeping this state, and it will come off the blade mounting. There is no.

(3) When the blade is moved upward, since the upper notch is formed in the opening of the hopper which is continuous with the sloped wall of the blade, the headed component may be caught between the blade and the hopper. There is no.

Further, since the lower notch is provided in the lower part of the upper notch, the headed component is positioned laterally in the opening and does not block the opening, but falls. .

(4) In order to automatically align and convey the headed parts housed in the hopper without leaving them in the hopper, in the hopper, there is an inclined surface having substantially the same inclination as the blade and an inclined surface inclined downward toward the blade. When a pedestal with a head is formed and the remaining amount of the headed component in the hopper becomes small, the headed component slides on the slope of the pedestal due to its own weight, and is placed on the standing wall of the slope of the blade and moves upward with the blade. It is moved and aligned and transported.

(5) On the outer side of the hopper connected to the opening of the hopper, there is a conveyance guide plate having an arc and a pair of standing walls of perpendicular lines connected to the arc, and a headed component on the outside of the conveyance guide plate. At a position a little distance from the head thickness of the head, there is provided an arc larger than the arc of the conveyance guide plate and a jump-out prevention plate for the headed part with a perpendicular line connecting to this arc, so the headed part is The head is guided by the circular arc of the conveyance guide plate and the circular arc of the jump-out prevention plate, and is changed in direction to be laterally aligned and conveyed.

(6) When the headed parts are aligned and conveyed to a specific amount, the blade does not need to move up and down, so a sensor for detecting the presence or absence of the headed parts operates and the blade stops moving up and down. Further, when the headed parts are aligned and conveyed below a specific amount, the blade needs to move up and down. Therefore, a sensor for detecting the presence or absence of the headed part operates and the blade moves up and down.

(7) The headed component whose lower part of the head of the headed component is not supported from both sides below the lower part of the standing wall portion of the pair of inclined surfaces of the blade and the lower part of the neck is not hung down is
When the blade moves downward, it collides with the position changing member of the headed component, changes its position, and when the blade moves upward, it is placed on a pair of sloped wall portions of the blade, moved upward, and conveyed in line.

The position changing member also serves as a guide for the vertical movement of the blade.

(8) Since the position changing member is formed with an inclined surface along the inclined surface of the blade and an inclined surface inclined toward the pedestal of the headed component, the headed component is not moved when the blade moves downward. The headed component will not be positioned on the position changing member by colliding with the position changing member and dropping through the both slopes.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described in detail with reference to the drawings. 1 is a hopper, in which the central portion of a bottom portion 1a is opened and an opening portion 1c is formed in a part of a first side surface 1b. Further, an upper notch 1d, a lower notch 1e and a standing wall 1g of a pair of slopes 1f are formed in the opening 1c, and legs 1h are provided in the lower part.

3 is a blade, and this blade 3 is
A pair of vertical wall portions 3c are formed on the upper side and a pair of vertical wall portions 3c are formed on the side portions, and a shaft 5a of the cylinder 5 is inserted through an opening at the center of the bottom surface 1a of the hopper 1. It is provided so that it can move up and down vertically by moving up and down. The angle α of the pair of slopes 3a of the blade 3 is 30
Around one degree is optimal.

The width L of the blade 3 is formed larger than the head diameter l of the headed component. The groove width between the standing wall portions 3b of the pair of slopes 3a is naturally formed larger than the under-neck diameter of the headed component.

Reference numeral 7 is a pedestal. The pedestal 7 has an inclination (ridge line) 7a substantially the same as the slope 3a of the blade 3 and the inclination 7
a sloped surface 7b which is continuous with a and is inclined toward the blade 3 toward the lower side is formed, and is in contact with the second side surface 1i of the hopper 1,
It is fixed to the bottom 1a of the hopper 1.

In this embodiment, the pedestal 7 is provided with the inclination 7
An inclination 7c that intersects a and an inclined surface 7d that is continuous with the inclination 7c and inclines toward the blade 3 are formed.

9 is also a receiving table, and this receiving table 9 is the receiving table 7 described above.
And a slope (ridge line) 9a and a slope 9b are formed, and contact the third side surface 1j of the hopper 1,
It is fixed to the bottom 1a of the hopper. Further, like the pedestal 7, an inclination 9c and an inclined surface 9d are formed.

The blade 3 is provided so as to be vertically movable between the pedestals 7 and 9, and when the blade 3 is located at the bottom dead center, its slope 3a is located below the slope 7a of the cradle 7. positioned.

Reference numeral 11 denotes a position changing member for the headed component w. This position changing member 11 is located below the standing wall portions 3b of the pair of slopes 3a of the blade 3, and the lower surface of the head of the headed component w is from both sides. The blade slope 3a serves as a member that changes the position of the headed part w that is not supported and is not positioned in a state where the lower neck part is hung, that is, the position of the headed part w that closes the opening 1c. Slope 11 sloping along
a and an inclined surface 11b inclined toward the pedestal 3 or 7 are formed, and when the blade 3 moves downward, the headed component w collides with one or both of the inclined surfaces 11a and 11b of the position changing member 11. The position of the blade 3 is changed, and the blade 3 is located between a pair of vertical standing walls 3c on the sides of the blade 3, abuts on the first side surface 1b of the hopper 1, and is provided integrally with the hopper 1. There is.

Reference numeral 13 denotes a conveyance guide plate for conveying the headed component w to the outside of the hopper 1, and when the blade 3 is located at the top dead center, the standing guide wall 3b and the hopper 1 are conveyed to the conveyance guide plate 13. A pair of standing wall portions 13a that are continuous with the standing wall portion 1g are provided, and a pair of arcs 13 are provided on the pair of standing wall portions 13a.
b and a pair of perpendiculars 13c connected to the arc 13b are formed and fixed to the outer surface 1j of the hopper 1.

In the illustrated embodiment, the standing wall portion 3b and the standing wall portion 13 of the conveyance guide plate 13 when the blade 3 is located at the top dead center are shown.
Although the standing wall portion 1g of the hopper 1 is formed between a, the standing wall portion 13a of the transport guide plate 13 may be directly connected to the standing wall portion 3b when the blade 3 is located at the top dead center.

Reference numeral 15 denotes a jumping-out prevention plate for the headed component w. The jumping-out prevention plate 15 is formed with an arc 15a larger than the arc of the conveyance guide plate 13 and a perpendicular line 15b connected to the arc, and the conveyance guide is formed. A headed part w on the outside of the plate 13
It is provided to prevent the headed part w from jumping out when the headed part w moves along the transport guide plate 15 at a position a little distance from the head thickness t of the head part w.

Therefore, the transport guide plate 13 and the jump-out prevention plate 1
A transport path 16 for the headed component w is constituted by 5 and 5.

Reference numeral 17 is a proximity sensor for detecting the presence of a specific amount of the headed component w, and when the proximity sensor 17 outputs a signal, the reciprocating motion of the shaft 5a of the cylinder 5 is stopped, that is,
The vertical movement of the blade 3 is stopped, and the supply of the headed component w to the transport path 16 is stopped.

Reference numeral 19 denotes a proximity sensor for detecting the absence of a specific amount of the headed component w.
When the signal is sent, the shaft 5a of the cylinder 5 moves up and down, that is, the blade moves up and down to start supplying the headed component w to the transport path 16.

The proximity sensor 17 for detecting the presence of the specific amount of the headed component w is provided upstream of the proximity sensor 19 for detecting the absence of the specific amount of the headed component w in the transport path 16.

In the illustrated embodiment, the proximity sensors 17, 19
, But only one proximity sensor was installed.
The blade may be set to stop moving up and down when the proximity sensor detects the presence of the headed component w in the transport path 16, and moves up and down when detecting the absence thereof. As described above, when one proximity sensor is provided, the number of times of vertical movement of the blade is naturally larger than when two proximity sensors are provided.

Further, only one proximity sensor is provided, the number of screws used for the automatic screw tightening described below is counted, and after the proximity sensor detects that the headed part w does not exist, It may be set by the software to move the blade up and down at a certain number.

In the lower part of FIG. 2, an application example of an aligning / conveying device for headed parts w is shown, in which the tip portion 23 of an electric screwdriver is inserted into the tube 21, and the tip portion 23 is aligned and conveyed. At the same time that the pressing member 25 presses one of the screws in the arrow direction, the tip portion 23 is rotated, and the screw is engaged with the tip portion 23 by the air suction in the arrow direction through the hole 21a of the tube 21. , The screws are automatically tightened.

FIG. 10 shows an application example of the head-equipped parts aligning and conveying apparatus shown in FIG. 1, in which the head-equipped parts w are aligned and conveyed to a plurality of places for automatic tightening of screws and automatic assembly by caulking pins. It is an aligning and conveying device for headed parts that is used at the same time at a plurality of places.

101 is a hopper, 103 and 104 are a pair of blades, 105 is a cylinder, 107, 108, 109.
Is a pedestal, 111 and 112 are position changing members, 113 and 11
4 is a conveyance guide plate, 115 and 116 are jump-out prevention plates, 11
Reference numerals 7 and 118 denote proximity sensors that detect the presence of a specific amount of the headed component w. Reference numerals 119 and 120 denote proximity sensors that detect that the specific amount of the headed component w does not exist.

[0049]

【The invention's effect】

(1) As described above, with the head of the headed part facing up, the lower surface of this head is supported from both sides and the pair of upper parts are slid on top of each other so that the lower neck part hangs down and slides under its own weight. Since the blade having the sloped upright wall is vertically movable in a hopper that accommodates a large number of headed parts, the apparatus can be downsized and the headed parts aligning and conveying apparatus can be manufactured at low cost. Can be provided.

(2) Since the width of the blade is formed to be larger than the head diameter of the headed component, once the lower surface of the head of the headed component is supported from both sides by the sloped wall of the blade, the neck is lowered. When placed with the part hung,
Minimal vertical movement of the blade as it is not moved from the rest of the blade by being moved downward and upward while maintaining this state without being interfered with other headed parts while the blade is moving downward. Can be limited.

(3) When the blade is moved up, an upper notch is formed in the opening of the hopper which is continuous with the standing wall of the inclined surface of the blade, so that the headed component is caught between the blade and the hopper. The blade can be moved up without any trouble. Further, since the lower cutout is provided in the lower part of the upper cutout, the headed component is positioned laterally in the opening and does not block the opening, so that the headed component falls down. The attached parts are smoothly aligned and transported to the outside of the hopper.

(4) The hopper is provided with a pedestal having the same inclination as that of the blade and the inclined surface inclined downward toward the blade, and when the remaining amount of the headed parts in the hopper becomes small, the head is reduced. The attached parts slide on the slope of the pedestal by their own weight, and are placed on the standing wall of the slope of the blade and moved up and moved together with the blade, so the headed parts stored in the hopper do not remain in the hopper. It is automatically aligned and transported.

(5) On the outside of the hopper connected to the opening of the hopper, there is provided a conveyance guide plate having an arc and a pair of standing walls perpendicular to the arc, and a headed component outside the conveyance guide plate. At a position a little distance from the head thickness of the head, there is provided an arc larger than the arc of the conveyance guide plate and a jump-out prevention plate for the headed part with a perpendicular line connecting to this arc, so the headed part is The slide guide is configured to slide along a pair of arcuate standing wall portions, change the direction, and be aligned and conveyed sideways.

(6) When the headed parts are aligned and carried to the carrying path up to a specified amount, the blade does not need to move up and down.
The presence or absence of headed parts is detected because the sensor that detects the presence or absence of headed parts stops the blade from moving up and down, and when the headed parts are aligned and conveyed below a specified amount, the blade needs to move up and down. Since the sensor that detects is activated and the blade is configured to move up and down, it is possible to minimize the up and down movement of the cylinder shaft, which saves power.
It is possible to prevent noise and prevent wear of the device.

(7) The lower surface of the head of the headed component is not supported from both sides by the lower part of the pair of sloped standing walls, and the blade of the headed component that is not positioned in the state where the lower neck is hung is When moved, the headed part collides with the position changing member to change its position and is returned to the hopper support, and when the blade is moved again, it is placed on the standing wall part of the pair of inclined surfaces of the blade and moved upward. They are transported in line.

Further, since the position changing member also serves as a guide for the vertical movement of the blade, the vertical movement of the blade can be performed reliably without any trouble.

(8) Since the position changing member is formed with an inclined surface along the inclined surface of the blade and an inclined surface inclined toward the pedestal of the headed component, the headed component is not moved when the blade moves downward. Since the head-equipped component is not positioned on the position-changing member by colliding with the position-changing member and dropping through the both slopes, all the head-equipped components in the hopper are aligned and conveyed to the outside of the hopper.

Because of the above-described effects, it can be optimally applied to, for example, automatic screw tightening and automatic crimping.

[Brief description of drawings]

FIG. 1 is a diagram of a main part of the present invention, in which (a) is a plan view, (b) is a sectional view taken along the line AB of FIG. (A), and (c) is a view (b).
CD cross section

FIG. 2 is a diagram when the blade of FIG. 1 (b) moves downward;
Figure of application example of this carrier

FIG. 3 is a perspective view of an embodiment of a pedestal of the present invention.

FIG. 4 is a perspective view of a blade of the present invention.

FIG. 5 is a perspective view of a position changing member of the present invention.

FIG. 6 is a diagram showing a state in which the lower surface of the head of the headed component is not supported from both sides at the lower part of the pair of sloped standing walls of the blade and the lower neck portion is not hung.

FIG. 7 is a diagram when the headed component in the state of FIG. 6 changes its position when the blade moves downward;

FIG. 8 is an explanatory diagram showing that it is necessary to form an upper cutout at the opening of the hopper.

FIG. 9 is an explanatory diagram showing that a lower cutout needs to be formed in the opening of the hopper.

FIG. 10 is an application diagram of the present invention, in which the headed parts are aligned and conveyed to a plurality of places.

[Explanation of symbols]

1 hopper 1a bottom of hopper 1 1b first side of hopper 1 1c opening of hopper 1 1d upper notch of hopper 1 1e lower notch of hopper 1 f slope of hopper 1 1g standing wall of hopper 1 1h leg of hopper 1 1i hopper Second side surface of 1 1j Third side surface of hopper 1 3 Blades 3a Pair of slopes of blade 3 3b Standing wall portions of a pair of slopes of blade 3 c Pair of vertical standing walls of blade 3 5 Cylinder 5a Shaft of cylinder 5 7 Receiving Platform 7a Inclination of the pedestal 7 7b Inclination of the pedestal 7 7c Inclination intersecting the inclination 7a 7d Inclination of the pedestal 7 9 Reception pedestal 9a Inclination of the pedestal 9 b Inclination of the pedestal 9 9c Inclination intersecting the 9a Inclination 9d Slope 11 of position changing member 11a Slope of position changing member 11b Slope of position changing member 11 Transport guide plate 13a A pair of standing wall portions of transport guide plate 13 13b a pair of arcs of a pair of standing wall portions of the conveyance guide plate 13c a pair of perpendicular lines connected to a pair of arcs 13b of a pair of standing wall portions of the conveyance guide plate 13 a jump prevention plate 15a a conveyance provided on the jump prevention plate 15 Information board 1
An arc larger than the arc of 3 15b A conveyance guide plate 1 provided on the jump-out prevention plate 15
A vertical line connected to a circular arc 15a larger than the circular arc of 3 16 Transport guide path for headed parts 17 Proximity sensor 19 Proximity sensor 21 Tube 23 Electric motor driver tip 25 Pressing member w Headed part t Headed part w head thickness α blade 3 Angle of a pair of slopes 3a L width of blade 3 l head diameter of headed part w

Claims (8)

[Claims] 1. A hopper for accommodating a plurality of headed parts,
A blade having a pair of sloped standing walls formed vertically in the hopper and vertically movable, and a hopper connected to the lower part of the sloped standing wall of the blade when the blade is located at the top dead center. An apparatus for aligning and carrying headed parts, comprising an opening and a carrying path for headed parts connected to the opening. 2. The apparatus for aligning and carrying headed parts according to claim 1, wherein the width of the blade is larger than the head diameter of the headed parts. 3. An apparatus for aligning and conveying headed parts, wherein the opening of the hopper according to claim 1 is provided with an upper notch and / or a lower notch. 4. The headed component aligning and conveying apparatus according to claim 1, wherein the hopper has an upper portion having substantially the same slope as the blade and a slope inclined downward toward the blade. An aligning and conveying device for headed parts, characterized in that a cradle is provided. 5. The apparatus for aligning and conveying headed parts according to claim 1, wherein a conveyance guide plate is provided on the outside of the hopper connected to the opening of the hopper, with a pair of standing wall parts of an arc and a perpendicular line connected to the arc. However, at a position slightly apart from the head thickness of the headed component outside the conveyance guide plate, the headed-out component having an arc larger than the arc of the conveyance guide plate and a perpendicular line continuing to this arc is jumped out. An aligning and conveying apparatus for headed parts, which is provided with a prevention plate. 6. The head-equipped component aligning and conveying apparatus according to claim 1, further comprising a sensor for detecting the presence or absence of a specific amount of the head-equipped component. Transport device. 7. A hopper for accommodating a plurality of headed parts,
The hopper is vertically movable in the vertical direction, and a pair of sloped standing walls are formed in the upper part, and a pair of vertical standing walls is formed in the side part connected to the lower part of the pair of sloped standing walls. And a position changing member that is located between a pair of vertical standing walls of this blade and that changes the position of the headed part fixed to the hopper, and the slope of the blade when the blade is located at top dead center. An aligning and conveying apparatus for headed parts, comprising: an opening of a hopper connected to a lower part of the standing wall of the head and a transfer path of the headed parts connected to the opening. 8. The head according to claim 7, wherein the position change member has an inclined surface along the inclined surface of the blade and an inclined surface inclined toward the lower part of the pedestal of the headed component. Alignment and transport device for attached parts.