JP3418835B2 - Aligned conveying device for headed parts - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for aligning and transporting a headed component such as a screw, which is suitable for aligning and transporting a component having a head. 2. Description of the Related Art Conventionally, as an apparatus of this type, as shown in Japanese Patent Publication No. 41567/1994 (prior art 1), a part with a head conveyed from a bucket conveyor rotates. There is disclosed a technique in which a pair of parallel rolls is guided by a pair of parallel rolls, passes through a pair of conical shafts that rotate, and is aligned by a linear feeder provided with an upright wall portion. As another technique, there is known a technique (Prior Art 2) in which a blade provided with a pair of upright walls is swung up and down in a hopper to align the headed parts. [0004] Further, when assembling the headed parts in a horizontal direction, the parts are horizontally aligned and conveyed by a link mechanism or a robot (prior art 3). [0005] In the apparatus constructed as in the prior art 1, since a bucket conveyor, a pair of parallel rolls, and a pair of conical shafts are provided, the required space is large, and There are problems such as high equipment costs. [0006] Also in the prior art 2, when a cylinder is used, reciprocating motion must be converted to rotary motion, and when a motor is used, reduction gears must be used. In addition, there is a problem that the equipment cost is high. The prior art 3 also has problems that the required space is large and the equipment cost is high. It is therefore an object of the present invention to reduce the size and size of the apparatus for aligning and transporting headed components, to reduce the cost of the apparatus, and to align and transport the headed parts horizontally. Another object of the present invention is to automatically align and convey a headed part accommodated in a hopper without leaving it in the hopper. (1) Means for solving the problem A blade with a pair of inclined walls formed on the upper part so that the head of the headed part is up and the lower surface of this head is supported from both sides and slides under its own weight with the lower part of the neck hanging down and sliding by its own weight Are vertically movably provided in a hopper accommodating a large number of headed parts. (2) With the head of the headed part facing upward, the lower surface of the head is supported on both sides and the lower part of the head is hung down, and once placed on the standing wall of the blade, the blade is lifted. The width of the blade is configured to be larger than the head diameter of the headed part so that it will not be dropped even if it moves down and collides with another headed part, and will be moved upward as it is located on the upright wall part. . (3) When the head moves upward, if the headed part is abnormally positioned on the vertical wall of the slope of the blade, the headed part may bite between the opening of the blade and the hopper. Therefore, this opening is provided with an upper notch, and when the headed part is positioned sideways to the opening and closes the opening, the position does not change even if the blade moves down, so the opening is not formed. A lower notch is provided. (4) In order to align the headed parts accommodated in the hopper without leaving them in the hopper, a slope having substantially the same inclination as the blade and a slope inclined downward toward the blade are formed in the upper part of the hopper. A cradle for headed parts is provided. (5) Outside the hopper, a pair of upright wall portions of a circular arc and a vertical line connected to the circular arc are formed on the outside of the hopper connected to the opening of the hopper so as to align and transport the headed parts horizontally. At a position where the conveyance guide plate is slightly away from the head thickness of the headed part outside the conveyance guide plate, a headed part having an arc larger than the arc of the conveyance guide plate and a perpendicular line connected to the arc is formed. Is provided. (6) A sensor for detecting the presence or absence of a specific amount of a headed component is provided to stop or start the vertical movement of the blade when a specific amount of the headed component is aligned and conveyed. (7) The lower part of the upright wall of the pair of slopes of the blade has the lower part of the head part of the head part which is not supported from both sides and is not positioned with the lower part of the head hanging down. A position changing member to be changed is located between the pair of vertical upright walls of the blade and fixed to the hopper. (8) When the blade is moved down, the position changing member is inclined toward the slope along the slope of the blade and toward the cradle of the headed component so that the headed part is not positioned on the position changing member. Slope is formed. (1) A number of headed parts of the same shape are housed in the hopper in a state of being placed in a random manner, and when the blade moves upward, the pair of sloped walls of the blade form an upright wall. In the state where the lower surface of the head of the headed part is supported from both sides and the lower part of the neck is hung down, the headed part is moved upward while sliding on the blade slope, passes through the opening of the hopper, and the transport path outside the hopper. To be conveyed. At this time, the headed part located at the lowermost part of the upright wall portion on the slope 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 part, the lower surface of the head of the headed part is once supported from both sides by the upright wall of the slope of the blade, and the lower part of the neck is supported. If the blade is placed in a hanging state, it will not interfere with other headed parts during the downward movement of the blade. There is no. (3) When the blade is moved upward, since the upper cutout is formed in the opening of the hopper connected to the vertical wall of the slope of the blade, the headed part may bite between the blade and the hopper. There is no. Further, since a lower notch is provided below the upper notch, the headed part is positioned laterally in the opening so as not to block the opening but to drop. . (4) In order to automatically align and convey the headed parts accommodated in the hopper without leaving them in the hopper, the hopper has substantially the same inclination as the blade and an inclined surface which is inclined lower toward the blade. When the remaining amount of the headed parts in the hopper is reduced, the headed parts slide on the slope of the receiving stand by their own weight, and are placed on the standing wall of the slope of the blade and rise together with the blade. It is moved and aligned and transported. (5) On the outside of the hopper connected to the opening of the hopper, there is provided a transport guide plate having an arc and a pair of vertical walls extending perpendicularly to the arc, and a headed component outside the transport guide plate. An arc larger than the arc of the transport guide plate and a head-preventing plate with a head formed with a perpendicular line connected to the arc are provided at positions slightly separated from the head thickness of the conveying guide plate. The head is guided by the arc of the conveyance guide plate and the arc of the pop-out prevention plate, and is changed in direction and conveyed sideways. (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 is activated and the blade stops moving up and down. Further, when the aligned conveyance of the headed component becomes equal to or less than a specific amount, the blade needs to move up and down, and a sensor for detecting the presence or absence of the headed component operates to move the blade up and down. (7) The headed part which is not positioned below the lower wall of the pair of slopes of the blade and whose lower part of the head is not suspended because the lower surface of the head of the headed part is not supported from both sides.
When the blade moves down, it collides with the position changing member of the headed part and changes its position. When the blade moves up, it is placed on a pair of inclined walls of the blade, moved up, and aligned and conveyed. The position changing member also guides the blade to move up and down. (8) The position changing member is formed with a slope along the slope of the blade and a slope inclined toward the cradle of the headed component. The head-equipped component does not fall on the position changing member by colliding with the position changing member and falling through the two slopes. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a hopper, and the hopper 1 has an opening at the center of a bottom 1a and an opening 1c at a part of the first side surface 1b. The opening 1c is formed with an upper notch 1d, a lower notch 1e, a standing wall 1g of a pair of slopes 1f, and a leg 1h at a lower portion. 3 is a blade, and this blade 3 is
A pair of upright walls 3b of a pair of slopes 3a are formed at the upper part, and a pair of vertical upright walls 3c are formed at the side parts. The shaft 5a of the cylinder 5 passes through an opening at the center of the bottom surface 1a of the hopper 1. It is provided so that it can move vertically up and down by vertical movement. The angle α between the pair of slopes 3a of the blade 3 is 30
The degree is optimal. The width L of the blade 3 is formed larger than the head diameter l of the headed part. The width of the groove between the upright wall portions 3b of the pair of slopes 3a is naturally formed to be larger than the diameter under the neck of the headed component. Reference numeral 7 denotes a receiving table, and the receiving table 7 has substantially the same inclination (ridge line) 7a as the inclined surface 3a of the blade 3, and the inclination 7a.
a and a slope 7b inclined downward toward the blade 3 is formed to contact the second side surface 1i of the hopper 1;
The hopper 1 is fixed to the bottom 1a. In this embodiment, the pedestal 7 has the inclination 7
a, and a slope 7 d which is continuous with the slope 7 c and slopes down toward the blade 3. The receiving table 9 is also used as the receiving table.
Are formed symmetrically with each other, and an inclined (ridgeline) 9a and an inclined surface 9b are formed, and come into contact with the third side surface 1j of the hopper 1,
It is fixed to the bottom 1a of the hopper. Also, as in the case 7, a slope 9 c and a slope 9 d are formed. The blade 3 is provided so as to be vertically movable between the pedestals 7 and 9. When the blade 3 is located at the bottom dead center, its slope 3 a is lower than the slope 7 a of the pedestal 7. positioned. Reference numeral 11 denotes a position changing member for the headed part w. The position changing member 11 is provided below the standing wall 3b of the pair of slopes 3a of the blade 3 with the lower surface of the head of the headed part w from both sides. A member that changes the position of the headed part w that is not supported and is not positioned with the lower part of the neck hanging down, that is, a member that changes the position of the headed part w that closes the opening 1c, is a blade slope 3a. Slope 11 that slopes along
a and a slope 11 b inclined toward the receiving table 7 or 9 , and when the blade 3 moves down, the headed component w collides with one or both of the slopes 11 a and 11 b of the position changing member 11. The position of the hopper 1 is changed, and is located between a pair of vertical upright walls 3 c on the side of the blade 3, abuts on the first side surface 1 b of the hopper 1, and is provided integrally with the hopper 1. I have. Reference numeral 13 denotes a transport guide plate for transporting and guiding the headed component w to the outside of the hopper 1. When the blade 3 is located at the top dead center, the transport guide plate 13 includes A pair of standing wall portions 13a are provided so as to be continuous with the standing wall portion 1g.
b and a pair of perpendicular lines 13c connected to the arc 13b are formed and fixed to the outer surface 1j of the hopper 1. In the embodiment shown in the drawings, the upright wall 3b and the upright wall 13 of the transport guide plate 13 when the blade 3 is located at the top dead center.
Although the upright wall 1g of the hopper 1 is formed between a and a, the upright wall 13a of the transport guide plate 13 may be directly connected to the upright wall 3b when the blade 3 is located at the top dead center. Reference numeral 15 denotes a plate for preventing the headed component w from jumping out. The plate 15 has an arc 15a larger than the arc of the conveyance guide plate 13 and a perpendicular line 15b connected to the arc. Headed component w outside plate 13
Is provided to prevent the headed component w from jumping out when the headed component w moves along the transport guide plate 15 at a position slightly away from the head thickness t. Therefore, the transport guide plate 13 and the pop-out prevention plate 1
5 form a transport path 16 for the headed component w. Reference numeral 17 denotes a proximity sensor for detecting the presence of a specific amount of the headed component w. When the proximity sensor 17 issues a signal, the reciprocating motion of the shaft 5a of the cylinder 5 is stopped.
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 that a specific amount of the headed component w does not exist.
Generates a signal, 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 a specific amount of the headed component w is provided upstream of the proximity sensor 19 for detecting that the specific amount of the headed component w does not exist. In the embodiment shown in FIG.
Are provided, but only one proximity sensor is provided.
The blades may be set to stop moving up and down when the proximity sensors detect the presence of the headed component w in the transport path 16 and move up and down when they detect the absence of the headed component w. As described above, when one proximity sensor is provided, the number of vertical movements 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 automatic screw tightening described below is counted, and after the proximity sensor detects that the headed component w is not present, The software may be set to move the blade up and down to a certain number. The lower part of FIG. 2 shows an application example of an apparatus for aligning and transporting a headed component w. A tip 23 of an electric screwdriver is inserted into a tube 21 and aligned and transported toward the tip 23. At the same time as the pressing member 25 presses one of the screws in the arrow direction, the tip 23 is rotated, and the screw is engaged with the tip 23 by air suction in the arrow direction through the hole 21 a of the tube 21. , The screws are automatically tightened. FIG. 10 shows an application of the headed part aligning / conveying apparatus shown in FIG. 1. In this apparatus, headed parts w are aligned and conveyed to a plurality of places, and automatic screw tightening and automatic assembling by caulking pins are performed. This is a device for aligning and transporting headed parts used at the same time at a plurality of locations. 101 is a hopper, 103 and 104 are a pair of blades, 105 is a cylinder, 107, 108, 109
Is a receiving stand, 111 and 112 are position change members, 113 and 11
4 is a conveyance guide plate, 115 and 116 are pop-out prevention plates, 11
Reference numerals 7 and 118 are proximity sensors for detecting the presence of a specific amount of the headed component w, and reference numerals 119 and 120 are proximity sensors for detecting that a specific amount of the headed component w does not exist. (1) As described above, with the head of the headed part facing upward, the lower surface of the head is supported from both sides and the lower part of the neck is hung down, and the sliding is performed by its own weight. A blade having a pair of inclined walls formed on the upper part so as to move vertically is provided in a hopper that accommodates a number of headed parts so that it can move vertically up and down. Therefore, the size of the device can be reduced and the cost of the device can be reduced. It has become possible to provide a device for aligning and transporting a headed component. (2) Further, since the width of the blade is formed larger than the head diameter of the headed part, the lower surface of the head of the headed part is once supported from both sides by the upright wall of the slope of the blade, so that it is located under the neck. When placed with the part hanging,
During the downward movement of the blade, it does not interfere with other headed parts, and it is moved downward and upward while maintaining this state, and it is not removed from the blade mounting. Can be limited. (3) When the blade is moved upward, since the upper cutout is formed in the opening of the hopper connected to the vertical wall on the slope of the blade, the headed part may bite between the blade and the hopper. The blade is moved up without hindrance. In addition, since a lower notch is provided below the upper notch, the headed part is positioned laterally in the opening and does not block the opening, so that the head is dropped. The attached parts are smoothly aligned and transported out of the hopper. (4) A pedestal is provided in the hopper having the same inclination as that of the blade and an inclined surface which is inclined downward toward the blade. The attached part slides on the slope of the cradle by its own weight, is placed on the standing wall of the slope of the blade, is moved up with the blade, and is conveyed, so the headed part stored in the hopper does not remain in the hopper. Automatically aligned and transported. (5) On the outside of the hopper connected to the opening of the hopper, there is provided a transport guide plate having an arc and a pair of vertical walls extending perpendicular to the arc, and a headed part outside the transport guide plate. An arc larger than the arc of the transport guide plate and a head-preventing plate with a head formed with a perpendicular line connected to the arc are provided at positions slightly separated from the head thickness of the conveying guide plate. Then, the transport guide plate is configured to slide on a pair of arc-shaped vertical wall portions, change the direction, and be aligned and transported sideways. (6) When the headed components are aligned and transported to the transport path to a specific amount, the blade does not need to move up and down.
The sensor that detects the presence or absence of a headed part is activated, and the blade stops moving up and down. Also, if the alignment and transportation of the headed part is less than a specified amount, the blade needs to be moved up and down. Sensor is activated and the blade is configured to move up and down, so that the up and down movement of the cylinder shaft can be minimized,
It is possible to prevent noise and wear of the device. (7) The lower part of the head of the headed part is not supported from both sides under the standing walls of the pair of slopes, and the headed part which is not positioned with the lower part of the neck hung down has the blade lower. When moved, the headed part collides with the position changing member and changes its position, is returned to the hopper receiving tray, and when the blade is moved up again, it is placed on the pair of inclined walls of the blade and moved upward. Aligned and conveyed. Further, since the position changing member also guides the vertical movement of the blade, the vertical movement of the blade can be surely performed without any trouble. (8) Since the position changing member is formed with a slope along the slope of the blade and a slope inclined toward the cradle of the headed component, the headed component is moved when the blade is lowered. Since the head-equipped component does not fall on the position-change member because it collides with the position-change member and falls through the two slopes, all the head-equipped components inside the hopper are aligned and conveyed out of the hopper. With the above-described functions and effects, it can be optimally applied to, for example, automatic screw tightening and automatic caulking.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram of a main part of the present invention, wherein (a) is a plan view, (b) is a cross-sectional view taken along the line AB in FIG. (A), and (c) is a diagram (b)
FIG. 2 is a cross-sectional view of the CD of FIG. 2 when the blade of FIG.
FIG. 3 is a perspective view of an embodiment of a cradle 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. 7 shows a state in which the lower surface of the head of the headed part is not supported from both sides and the lower part of the neck is not hung below the standing wall portions of the pair of slopes of the blade. FIG. 8 is a view when the headed part of the blade changes its position when the blade is moved down. FIG. 8 is an explanatory view that the opening of the hopper needs to have an upper cutout. FIG. 9 is an opening of the hopper. That the lower notch is required to be drilled. FIG. 10 is an application view of the present invention, and is a view when a headed component is aligned and conveyed to a plurality of locations. Bottom part 1b of hopper 1 First side surface 1c of hopper 1 Opening 1d of hopper 1 Upper notch 1e of hopper 1e Below hopper 1 Part notch 1f Slope 1g of hopper 1g Standing wall 1h of hopper 1 Leg 1i of hopper 1 Second side 1j of hopper 1 Third side 3 of hopper 1 Blade 3a A pair of slopes 3b of blade 3 A pair of slopes of blade 3 Part 3c A pair of vertical wall portions 5 of the blade 3 A cylinder 7a A shaft 7 of the cylinder 5 A receiving base 7a An inclination 7b of the receiving base 7A slope 7c of the receiving base 7 A slope 7d intersecting the inclination 7a A slope 9 of the receiving base 9 A receiving base 9a Slope 9b of stand 9 Slope 9c of stand 9 Slope 9d intersecting with slope 9a Slope 11 of stand 9 Position changing member 11a Slope 11b of position changing member 11 Slope of position changing member 11 Transport guide plate 13a Transport guide plate 13a A pair of standing walls 13b A pair of arcs 13c of a pair of standing walls of the conveyance guide plate 13 A pair of perpendiculars 15 connected to a pair of arcs 13b of the pair of standing walls of the conveyance guide plate 13 Conveying guide plate is provided in the plate 15a springing preventing plate 15 1
Arc 15b larger than the arc 3 The conveyance guide plate 1 provided on the anti-protrusion plate 15
Vertical line 16 continuing to an arc 15a larger than the arc of 3 Conveyance guide path 17 for headed parts Proximity sensor 19 Proximity sensor 21 Tube 23 Tip part 25 of electric driver Pressing material w Headed part t Head thickness α of headed part w Blade 3 Angle L of the pair of slopes 3a Width l of blade 3 Head diameter of headed component w

Continuation of the front page (56) References JP-A-58-193820 (JP, A) JP-A-64-51234 (JP, A) JP-A-58-48633 (JP, U) JP-A-52-14687 (JP, A) , U) Shokai 56-176140 (JP, U) Shokai 3-64915 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 47/14

Claims (1)

(57) [Claim 1] A hopper for accommodating a plurality of headed parts,
One at the top and vertically disposed vertically movable in the hopper
A pair of sloped walls are formed, and the pair of slopes are formed.
A pair of vertical standing walls on the side connected to the lower part of the standing wall on the slope
A blade formed between the blade and a pair of vertical upright walls of the blade.
The slope along the slope of the board and the bottom of the cradle for the headed parts.
With a head that is fixed to the hopper
A position changing member for changing the position of the part to be mounted, an opening of a hopper connected to a lower portion of an upright wall on a slope of the blade when the blade is located at a top dead center, and a conveyance path for a headed part connected to the opening. And a device for arranging and conveying headed parts.