JP2003165616A - Screw aligning machine and automatic screw feeding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screw aligning machine capable of being driven by one motor and having excellent feeding capacity and maintainability. <P>SOLUTION: This screw aligning machine comprises a housing 30, a motor 50, a rotating disk 70 installed in the housing 30 to demarcate a screw storage chamber 33 in a space inside the housing, fixed to the rotating shaft 34 of the motor to be rotated by the motor 50, and having permanent magnets 71 buried therein apart from each other, a rotating spring 61 installed at the bottom part of the screw storage chamber 33 and having one end fixed to the rotating shaft 34 of the motor, a pan 80 installed between the rotating spring 61 and the rotating disk 70, formed to arrest the screws swept by the rotating spring 61, and disposed at a position where the arrested screws are attracted by the permanent magnets 71 of the rotating disk, and a rail member 40 formed to arrest and guide, from the pan 80, the screws attracted by the permanent magnets 71 of the rotating disk and rotated together with the rotating disk 70. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw feeder for aligning screws and rivets and automatically feeding them.

[0002]

2. Description of the Related Art When performing screw tightening work using an electric screwdriver when assembling electric equipment, the screw is automatically supplied to the screw take-out position in order to allow the worker to take out the screw quickly in one operation. A screw feeding device is provided.

FIG. 12 schematically shows a conventional screw feeding device 200 which is conventionally used. This screw feeder 2
00 is a screw storage chamber 201 that accommodates a large number of screws.
And a dipper 202 provided in the screw storage chamber 201 and driven up and down (see an arrow in the figure) by a first motor (not shown) and a dipper 202 when the upper position is reached. Shooter 20 that guides the screw to the take-out position
3 and a second motor 204 that vibrates the shooter 203 and promotes the flow of screws in the shooter 203.

According to this screw supply device 200, the screw contained in the screw storage chamber 201 is scooped up by the dipper 202 moved to the upper limit position by the first motor,
It is put into a groove provided in the shooter 203. afterwards,
The screw thrown into the shooter 203 moves to the screw take-out position while the flow is accelerated by the vibration of the second motor 204.

[0005]

However, the conventional screw supply device is constituted by the two drive motors as described above, and there is a problem in terms of manufacturing cost and power consumption. In addition, the second which is a vibration applying motor
The motor 204 is provided with an eccentric weight or the like for applying a strong vibration required when supplying a screw or the like having a small weight, which causes a problem that the cost is further increased.

Further, the conventional screw supply device is large in size, and when it is installed in a manufacturing line or the like, there is a problem that the work space of the operator is pressed and the workability is deteriorated. Further, since the conventional screw supply device is large, it is used in a stationary state, but it is difficult to move the position of the screw supply device for each worker or move the position due to a change in the manufacturing line or the like. There was a problem that was.

Therefore, the present invention can be driven by one motor, has a good supply capacity and maintainability,
An object of the present invention is to provide a miniaturized screw aligner and a screw automatic supply method.

[0008]

In view of the above problems, a screw aligning machine according to claim 1 divides a screw storage chamber into a housing, a rotation driving means, the housing, and a space inside the housing. A rotary disc provided with a suction means, which is provided and fixed to the rotary shaft of the rotary drive means for rotation by the rotary drive means,
A rotary member that is installed at the bottom of the screw storage chamber and has one end fixed to the rotary shaft of the rotary drive means and that guides the screw, and that is provided between the rotary member and the rotary disk. A tray configured to capture the screw guided by a member, the tray being disposed at a position where the captured screw is attracted by the suction means of the rotary disc, and the tray to the rotary disc. A rail member configured to capture and guide the screw that is sucked by the suction means and that rotates together with the rotating disk.

According to the above invention, a stable screw supply can be achieved by using only one rotary drive means. Since the vibration applying motor that has been used conventionally is not required, the manufacturing cost of the screw aligner can be reduced, and the screw aligner can be downsized. Further, the vertical driving of the dipper of the conventional example is not required, and the screw is supplied by the rotation of the rotating disk instead, so that the screw supply efficiency can be remarkably improved.

Further, in the screw aligner according to a second aspect of the present invention, the rotary disc partitions the space in the housing into a screw supply chamber and a screw storage chamber, and the rotary disc is provided with the screw storage chamber and the screw storage chamber. A through hole communicating with the chamber is provided, and the housing is provided with a partition plate that blocks rotation of the screw in the screw supply chamber.

According to the above invention, these screws can be easily guided to the screw storage chamber by simply inserting a large amount of screws to be supplied into the screw supply chamber from the outside. As a result, an operator who uses the screw aligner can replenish the screws with a small amount of labor, so that the work efficiency can be improved. Further, when the housing is made of a transparent material, the amount of screws in the screw storage chamber can be easily observed from the outside, and the worker can perform screw replenishment work at an appropriate time. it can. Further, when the partition plate is designed to fit into the groove provided on the upper portion of the grip for fixing the rotating disc, the rotating disc can be easily removed using the partition plate, The maintainability can be improved.

Further, in the screw aligner according to a third aspect of the present invention, the rotating member includes a first barrel portion extending along a bottom surface of the screw storage chamber and a second barrel inclined with respect to the bottom surface of the screw storage chamber. And a section.

According to the above invention, it is possible to remarkably improve the transfer efficiency of the screw to the tray by the rotating member.
That is, the saucer can easily remove the screw riding on the second body while contacting the second body of the rotating rotating member.

According to a fourth aspect of the present invention, in the screw aligning machine, the rail member supports a lower surface of the head of the screw, in which a slot for guiding the shaft of the screw is formed along the longitudinal direction of the rail member. A first portion having a sliding surface for moving, and a sliding surface for supporting the lower surface of the head portion of the screw, in which a concave portion that includes and guides the shaft portion of the screw is formed along the longitudinal direction.
And a second part continuous from the first part.

According to the above-mentioned invention, the improper screw having the screw tip sucked drops from the rail member in the middle of the first portion or at the start position of the second portion. I can't send it. In this way, by designing the improper screw to drop in the middle of the first part or at the starting position of the second part, the face of the head, which is guided after the improper screw, becomes the face of the rotating disk. The proper screw adsorbed along with it can still be retained at the first portion of the rail member even when the previously guided improper screw falls. Thereby, the screw supply rate by the rotating disk can be improved.

According to a fifth aspect of the present invention, there is provided an automatic screw feeding method, in which the screw supplied to the housing by the rotation of the rotating member is placed on the tray, and the screw placed on the tray is attracted to the rotating disk. Then, the screw attracted is guided to the rail member by the rotation of the rotary disk.

According to the above invention, it is possible to realize the automatic supply of screws using only one rotation drive means. The method according to the present invention can realize automatic feeding of screws with high efficiency, low cost and stability.

Other objects, configurations and effects of the present invention will become more apparent from the following description of the embodiments with reference to the drawings.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the screw aligning machine of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing an outline of a screw aligner 100 according to the present invention, FIG. 1A is a perspective view of the screw aligner 100 according to the present invention, and FIG. 1B is a screw aligner 100.
FIG. 3 is a front view with the housing 30 removed to show the internal structure of FIG. The screw aligner 100 includes a chassis 20 and
A motor 50 as a rotation driving unit attached to the chassis 20, a coupling 60 attached to a shaft 51 of the motor 50, and a coupling 6 on the chassis 20.
Rotary disk 70 mounted via 0, a housing 30 mounted on the chassis 20 and housing the supply screw 10 to be supplied, and a housing 30 mounted on the chassis 20.
Rail member 40 for guiding the vehicle.

The chassis 20 is made of metal and has a rigid structure with a substantially hat-shaped cross section.
The motor 50 is fixed to the chassis 20 with a fastener or the like, and plays a role of rotating the coupling 60 and the rotating disk 70.

FIG. 2 is a perspective view of the coupling 60 of the screw aligner 100. As shown in FIG. 2, the coupling 60 has a substantially cylindrical shape, and a grip 91 (see FIG.
It has a bolt 62 for screwing (A) and FIG. 1B), and a rotating member 61 for mounting the supply screw 10 on a tray 80 as described later.

Referring again to FIG. 1B, the coupling 60 is formed by fitting a fitting hole (not shown) provided at the bottom of the coupling 60 into the shaft 51 of the motor 50. It is fixed to the shaft 51 by engaging the tip of the fixing bolt 64 screwed into the side hole of the shaft 60 with the shaft 51.

The grip 91 is a fitting groove 911 configured so that a bolt hole (not shown) into which the bolt 62 of the coupling 60 is screwed and a guide plate 90 (see FIG. 1A) are fitted. Have and. The grip 91 is coupled to the bolt hole provided in the grip 91 by the coupling 60.
It is fixed to the coupling 60 by connecting the bolts 62 of.

The rotating disc 70 is formed by fitting a grip 91 into a hole formed at the center of the rotating disc 70.
It is fixed to the grip 91. As a result, the rotating disk 7
0 is fixed to the coupling 60 via a grip 91 screwed to the bolt 62 of the coupling 60.

With the above configuration, the rotation of the motor 50 is
Coupling 6 fixed to shaft 51 of motor 50
The rotation of 0 and the rotation of the rotating disk 70 fixed to the coupling 60 via the grip 91 can be caused.

FIG. 3 is a perspective view of the housing 30.
As shown in FIG. 3, the housing 30 is a transparent hollow cylindrical member formed of resin or the like, and has an opening 31 for passing the rail member 40 and a notch portion 35 for sandwiching the guide plate 90. Equipped with. This housing 30
The central axis 34 of the cylindrical housing 30 is positioned and fixed on the upper surface of the chassis 20 so as to coincide with the rotation axis of the shaft 51 of the motor 50.

As shown in FIG. 1B, the rotary disk 70 is arranged so as to partition the housing 30 into two spaces in the height direction of the housing 30 (the rotational axis direction of the shaft 51). At this time, the open space on the upper side of the rotary disk 70 defines a screw supply chamber 32 for supplying the supply screw 10 from the outside, and the lower space closed by the chassis 20 is separated from the screw supply chamber 32. A screw storage chamber 33 for storing the supplied supply screw 10 is defined.

FIG. 4 is a top view of the rotary disk 70 and the housing 30. As shown in FIG. 4, the rotating disk 70 has an outer circumference that is concentric with the inner circumference of the housing 30. Between the outer circumference of the rotating disk 70 and the inner peripheral surface of the housing 30,
A clearance is provided for smooth rotation of the rotating disk 7 without contact with the housing 30, and the supply screw 10 supplied to the screw supply chamber 32 is sandwiched in the clearance to hinder the rotation operation. The size is such that it will never happen.

The rotary disk 70 has a through hole 72 for dropping the supply screw 10 into the screw storage chamber 33, and a rail member 40 for adsorbing and feeding the supply screw 10 in the tray 80.
It has a permanent magnet 71 as an attracting means embedded in the lower surface of the rotating disk 70. The permanent magnets 71 are embedded on the circumference concentric with the rotating disk 70 so as to be separated from each other. In the present embodiment, as shown in FIG. 4, three permanent magnets 71 penetrate three remaining positions among the four dividing positions formed when the rotary disk 70 is divided into four equal parts. Hole 72
Are placed.

However, instead of the magnetic force of the permanent magnet, a magnetic acting force of an ordinary magnet or an electromagnet, an attractive force due to static electricity, or a fluid acting force may be used as the adsorbing means. This suction means is a rotating disk 70.
It may be provided at a position other than on the circumference that is concentric with respect to. Further, instead of using three permanent magnets as the attraction means, one permanent magnet may be used.

FIG. 5 is a top view of the screw aligner 100 with the rotary disk 70 removed to show the inside of the housing 30. The rail member 40 is mounted on the chassis 20 as shown in FIG.
The distal end of is inserted into the screw storage chamber 33 through the opening 31 of the housing 30.

FIG. 6 is a view showing the relationship between the tray 80 and the rail member 40. FIG. 6A is a top view of the rail member 40 on which the tray 80 is mounted, and FIG. Is. As shown in these drawings, the tray 80 for mounting the supply screw 10 to be sent to the rail member 40 is provided near the tip of the rail member 40 for aligning and guiding the supply screw 10.

FIG. 7 is a diagram showing the structure of the tray.
(A) is a top view of the tray 80, (B) is a front view thereof. As shown in these drawings, the receiving tray 80 is erected at a right angle to the receiving surface 81 from the receiving surface 81 on which the supply screw 10 attracted to the rotating disk 70 is placed and the edge of the receiving surface 81 on the housing 30 side. It has a wall portion 82 and a mounting surface 83 having a mounting hole for mounting on the rail member 40.

8A and 8B are views showing the structure of the rail member 40. FIG. 8A is a top view of the rail member 40, and FIG.
The front view and (C) are left side views. The rail member 40 includes a progressive portion 43 that feeds the supply screw 10 to the extraction portion 44 and a guide portion 42 that guides the supply screw 10 from the tray 80 to the progressive portion 43.

The progressive portion 43 is shown in FIGS.
As shown in (B), it has a concave cross section in which a bottomed guide groove 47 for guiding the shaft portion of the supply screw 10 is formed over the entire length of the progressive portion 43. The upper surface of the progressive feeding portion 43 has a sliding surface 48 on which the seat surface of the supply screw 10 is supported and slides.
Therefore, a guide protrusion 49 for restricting the head of the supply screw 10 is formed on the side edge of the sliding surface 48. The width of the guide groove 47 (W in FIG. 8A) is set to be slightly larger than the width of the shaft portion of the supply screw 10 so that the supply screw 10 can be smoothly fed.

The guide portion 42 is shown in FIGS.
As shown in (C), it is formed only from the upper portion of the progressive portion 43. That is, the guide groove 47 of the progressive feeding portion 43 has a gap having the same width as the width of the guide groove 47 (W in FIG. 8A) and is guided while the shaft portion of the supply screw 10 is exposed. 42 into the guide slit 46. The guide part 42 has a sliding surface 48 and a guide protrusion 49, like the progressive part 43. The starting point of the guide portion 42 is preferably tapered to guide the supply screw 10 into the guide portion 42.

At the take-out portion 44 at the end of the progressive feeding portion 43 of the rail member 40, as shown in FIG. 5, the bit guide 94 for guiding the tip of the bit of the driver to the bit hole of the feeding screw 10 and the feeding screw 10 are provided. A stopper mechanism 95 is provided for stopping the feed and forcibly rotating the feed screw 10 by a moving operation in the screw feed direction (X1 direction in FIG. 5) of the driver to release the stop.

Next, the screw supply operation by the screw aligner 100 of the present invention and the positional relationship of each component related to this operation will be described in detail.

FIG. 9 is a top view of the screw aligner 100 of the present invention. The power is turned on and the motor 50 is operated by a predetermined operation.
When is rotated, the rotating disk 70 is rotated. The supply screw 10 to be supplied in line is supplied to the screw supply chamber 32 defined on the upper side of the rotating disk 70. These supply screws 10 are supplied to the screw storage chamber 33 through the through holes 72 provided in the rotary disc 70.

At this time, the notch portion 35 of the housing 30
The guide plate 90 (see FIG. 9) fitted in the supply screw 10 blocks the supply screw 10 existing in the screw supply chamber 32 and rotating together with the rotating disk 70, thereby supplying these supply screw 10
To flow down through the through holes 72. The supply screw 10 thus supplied to the screw supply chamber 32.
Are accumulated at the bottom of the screw supply chamber 32.

Next, these supply screws 10 are connected to the motor 5
It is swept and collected by the rotating member 61 of the coupling 60 which is rotated by the rotation of 0, and the receiving surface 81 of the receiving tray 80.
Can be posted on.

FIG. 10 is a view schematically showing the operation of the rotating member 61 collecting the supply screws 10 and transferring them to the receiving tray 80, and (A), (B), (C), and (D). , Each stage of this operation is shown. The rotating member 61 includes a first body portion 611 along the bottom portion of the screw supply chamber 32 in the coupling 60.
And a second body portion 612 defined by a curved portion generated by contact with the side surface of the housing 30.

The rotating member 61 is preferably made of a flexible material such as a spring. By providing the rotating member 61 with flexibility, the supply screw 10 can be rotated by the rotating member 61.
It is prevented that the motor 50 is stopped by being sandwiched between the housing 30 and the housing 30.

In FIG. 10A, the first body portion 611 of the rotating member 61 is rotating while pressing the supply screw 10 in the screw storage chamber 33. Although only a small amount of the supply screw 10 is shown in FIG. 10A, a large amount of the supply screw 10 is actually accumulated at the bottom of the screw supply chamber 32.

FIG. 10 (B) shows a state in which the rotation of the rotating member 61 progresses and the plurality of supply screws 10 ride on the rotating member 61. The supply screw 10 pushed by the first body 611 of the rotating member 61 is blocked by the large number of supply screws 10 in the direction in which the rotating member 61 is about to move, and rides on the second body 612 of the rotating member 61. become. Therefore, it is necessary that the screw storage chamber 33 always stores a certain amount or more of the supply screw 10. Since the housing 30 is made of a transparent material as described above, the operator can easily understand the situation inside the screw storage chamber 33.

In FIG. 10C, the rotation of the rotary member 61 progresses, and the supply screw 10 mounted on the rotary member 61 is
It has been moved to the saucer 80. For this purpose, the second body 612 of the rotating member 61 preferably comprises the chassis 20.
Is inclined with respect to the upper surface of the
Is provided at a height lower than that of the second body 612. Thereby, the supply screw 10 riding on the second body portion 612 of the rotating member 61 can be transferred to the receiving surface 81 in such a manner that the supply screw 10 is picked up by the tray 80 as the rotating member 61 rotates. .

At this time, the wall portion 82 of the receiving tray 80 (see FIG. 7B) has the supply screw 10 transferred to the receiving tray 80.
It plays the role of blocking the supply screw 10 so that the water does not spill out of the tray 80.

In FIG. 10D, the rotation of the rotating member 61 progresses, the transfer of the supply screw 10 from the rotating member 61 to the receiving tray 80 is completed, and the second body portion 612 of the rotating member 61 receives the receiving tray 80. It shows how to dive under the surface 81. After that, the rotation of the rotating member 61 further progresses, and the above-described operations are repeated. For this purpose, the receiving surface 8 of the saucer 80
The gap between the first member 1 and the upper surface of the chassis 20 is larger than the outer diameter of the rotating member 61.

Next, the supply screw 10 transferred to the tray 80.
Is attracted to the rotating disk 70, and is rotated to the rail member 40 while being attracted to the rotating disk 70. For this purpose, the rotary disk 70 is provided at a height such that the permanent magnet 71 embedded in the rotary disk 70 can attract the supply screw 10 on the receiving surface 81. Further, the radial position of the tray 80 in the housing 30 is determined in accordance with the rotation trajectory of the permanent magnet 71 embedded in the rotary disk 70.

Here, in the screw aligner 100 of the present invention, the supply screw 10 (hereinafter, referred to as "the screw 10", whose head surface is attracted to the permanent magnet 71 embedded in the rotating disk 70 along the surface of the rotating disk 70. Only the proper screw 11 "is referred to as the rail member 40.
The feeding screw 10 (hereinafter, referred to as “inappropriate screw 12”) to which the screw tip is sucked is not fed to the progressive feeding portion 43.

FIG. 11 is a diagram schematically showing how the proper screw 11 and the inappropriate screw 12 attracted to the permanent magnet 71 of the rotating disk 70 are guided by the rail member 40.

The proper screw 11 attracted to the permanent magnet 71 embedded in the rotating disk 70 is moved to the starting point of the guide portion 42 of the rail member 40 by the rotation of the rotating disk 70 (see the arrow pointing right in FIG. 11). . As the rotation of the rotary disk 70 progresses, the proper screw 11 is guided by the guide slits 46 that sandwich the shaft portion of the proper screw 11 and is attracted to the permanent magnet 71 of the rotary disk 70 while being fed in the screw feeding direction (X in FIG. 5).
Move in one direction). At this time, the seating surface of the proper screw 11 is in a relationship slightly separated from the sliding surface 48 of the guide portion 42.

As the rotating disc 70 further rotates, the shaft portion of the proper screw 11 is constrained by the guide slit 46 of the guide portion 42, so that the proper screw 11 is rotated by the rotating disc 7.
The permanent magnet 71 of 0 cannot be further rotated while being attracted to the permanent magnet 71, and the magnetic force of the permanent magnet 71 of the rotating disk 70 is released. At this time, since the seat surface of the proper screw 11 is seated on the sliding surface 48 of the guide portion 42, the proper screw 11 does not drop from the rail member 40. Then, the proper screw 11 is fed to the progressive feed portion 43 while sliding on the sliding surface 48 of the guide portion 42.

The improper screw 12 attracted to the permanent magnet 71 embedded in the rotating disk 70 is, like the proper screw 11,
The rotation of the rotating disk 70 causes the rail member 40 to move to the starting point of the guide portion 42. As the rotation of the rotating disk 70 progresses, the improper screw 12 is guided by the guide slits 46 of the guide portion 42 that sandwiches the shaft portion of the improper screw 12 like the proper screw 11, and the permanent magnet 71 of the rotating disk 70 is guided.
While being adsorbed by, it moves in the screw feeding direction (X1 direction in FIG. 5).

When the rotation of the rotating disk 70 further progresses, the shaft portion of the improper screw 12 is guided by the guide slit 46 of the guide portion 42.
Since the improper screw 12 cannot be further rotated while being attracted to the permanent magnet 71 of the rotating disk 70, the improper screw 12 is released from the magnetic force of the permanent magnet 71 of the rotating disk 70. At this time, unlike the proper screw 11, the inappropriate screw 12 does not engage with the sliding surface 48 of the guide portion 42, and therefore falls from the rail member 40 (see the downward arrow in FIG. 11).

Below the rail member 40 at the point where the improper screw 12 is released from the magnetic force of the permanent magnet 71, a tray 80 is provided.
7A is not provided (see FIG. 7A), the improper screw 12 drops to the bottom of the screw supply chamber 32 as it is. The dropped inappropriate screw 12 is again swept and collected by the rotating member 61 of the rotating coupling 60 and placed on the receiving surface 81 of the receiving tray 80.

With the above operation, the proper screw 11 is continuously guided to the rail member 40 by the rotation of the rotary disk 70, and the proper screw 11 guided previously is successively guided by the many proper screws 11 to be guided. Depressed and progressive part 4
Proceed through 3 to the extraction site 44.

At the take-out portion 44, the movement of the fed proper screw 11 is temporarily stopped by the stopper mechanism 95. After that, the proper screw 11 is attached to the bit guide 9
It is caught by the driver guided by 4, and subsequently the stopper mechanism 95 is forcibly rotated and taken out.

As another possible embodiment, the guide portion 42 and the progressive feeding portion 43 of the rail member 40 of the above embodiment are provided.
The position of the branch point may be shifted in the tray 80 direction (opposite to the X1 direction in FIG. 5). That is, it is possible to change the point where the supply screw 10 is released from the magnetic force of the permanent magnet 71.

In this alternative embodiment, the proper screw 11 attracted to the permanent magnet 71 embedded in the rotary disk 70 is moved to the starting point of the guide portion 42 of the rail member 40 by the rotation of the rotary disk 70. As the rotation of the rotary disc 70 progresses, the proper screw 11 is guided by the guide slits 46 of the guide portions 42 that sandwich the shaft portion of the proper screw 11, and is attracted to the permanent magnet 71 of the rotary disc 70 while being fed in the screw feeding direction (see FIG. 5) (X1 direction).

When the rotation of the rotary disk 70 further progresses, the proper screw 11 is fed from the guide portion 42 to the progressive feeding portion 43. At this time, the shaft portion of the proper screw 11 is set to the forward feeding portion 43.
Into the guide groove 47. Therefore, the proper screw 11 cannot be further rotated while being attracted to the permanent magnet 71 of the rotating disk 70, and is released from the magnetic force of the permanent magnet 71 of the rotating disk 70. At this time, the seating surface of the proper screw 11 is seated on the sliding surface 48 of the guide portion 42, and thereafter the progressive feeding portion 4
It will be sent after being guided by 3.

The improper screw 12 attracted to the permanent magnet 71 embedded in the rotating disk 70 is, like the proper screw 11,
The rotation of the rotating disk 70 causes the rail member 40 to move to the starting point of the guide portion 42. As the rotation of the rotating disk 70 progresses, the improper screw 12 is guided by the guide slits 46 of the guide portion 42 that sandwiches the shaft portion of the improper screw 12 like the proper screw 11, and the permanent magnet 71 of the rotating disk 70 is guided.
While being adsorbed by, it moves in the screw feeding direction (X1 direction in FIG. 5).

As the rotation of the rotary disk 70 further progresses, the proper screw 11 is fed to the branch point between the guide portion 42 and the progressive feed portion 43. At this time, the head of the improper screw 12 cannot enter the guide groove 47 of the progressive portion 43,
The improper screw 12 moves from this point in the screw feeding direction (X in FIG. 5).
You cannot move in one direction.

Further, since the shaft portion of the improper screw 12 is constrained by the guide slit 46, the improper screw 12 cannot be further rotated while being attracted to the permanent magnet 71 of the rotating disc 70, and thus the rotating disc. The magnetic force of the permanent magnet 71 of 70 is released. At this time, unlike the proper screw 11, the improper screw 12 cannot be engaged with the sliding surface 48 of the guide portion 42, and therefore falls from the rail member 40.

The above has been described based on the preferred embodiments of the screw aligner and the screw automatic feeding method of the present invention.
The invention is not limited to these examples. INDUSTRIAL APPLICABILITY The screw aligning machine of the present invention can effectively exert its effect not only on screws but also on types such as rivets having a head and a shaft. Therefore, it should be understood that the term "screw" includes these classes.

Those skilled in the art will be able to easily make modifications and improvements to the above-mentioned embodiments. Therefore, it should also be understood that the present invention is not limited to such embodiments.

For example, in this embodiment, the rail member 40 is provided with the guide portion 42, but without providing the guide portion 42, the permanent magnet 71 embedded in the rotating disk 70 is provided.
It is also possible to adopt a configuration in which the proper screw 11 adsorbed on is directly guided to the progressive portion 43.

In this embodiment, the proper screw 11 attracted to the permanent magnet 71 embedded in the rotating disk 70 is guided to the progressive portion 43. As the rotation of the rotating disk 70 progresses,
Since the shaft portion of the proper screw 11 is constrained in the guide groove 47 of the progressive feed portion 43, the proper screw 11 cannot rotate while being attracted to the permanent magnet 71 of the rotating disc 70, and thus the rotating disc 70 becomes permanent. The magnetic force of the magnet 71 is released. At this time, the seat surface of the proper screw 11 is the forward feeding portion 43.
Since it is seated on the sliding surface 48, the sheet is guided and fed to the progressive feeding portion 43 thereafter.

Similarly, the improper screw 12 attracted to the permanent magnet 71 embedded in the rotating disk 70 is not attached to the rail member 40.
Is guided to the progressive part 43. As the rotation of the rotating disk 70 progresses, the head of the improper screw 12 cannot enter the guide groove 47 of the progressive feeding portion 43, so the improper screw 12 is fed from this point in the screw feeding direction (Fig. 5
Cannot move in the X1 direction).

Since the improper screw 12 is prevented from moving by the rail member 40, the permanent magnet 7 of the rotating disk 70 is prevented.
It cannot be further rotated while being attracted to 1, and is released from the magnetic force of the permanent magnet 71 of the rotating disk 70. At this time, since the improper screw 12 cannot engage with the sliding surface 48 of the guide portion 42, unlike the proper screw 11,
It will fall from the rail member 40.

[0072]

Since the present invention is as described above, it has the following effects. The screw aligner according to the present invention can achieve a stable screw supply by using only one motor.
The manufacturing cost of the screw aligner can be reduced and the screw aligner can be downsized.

Further, the screw can be replenished by simply inserting a large amount of the screw to be supplied into the screw supply chamber from the outside, so that the working efficiency can be improved.

Further, since the receiving tray can easily scrape off the screw riding on the second body of the rotating member, the efficiency of transfer of the screw to the receiving tray by the rotating member can be remarkably improved. .

In addition, the improper screw with the screw tip absorbed is
In the middle of the first part or at the start position of the second part,
Since it falls from the rail member, the screw supply rate by the rotating disk can be improved.

Further, the method according to the present invention can realize automatic feeding of screws with high efficiency, low cost and stability.

[Brief description of drawings]

FIG. 1 (A) is a perspective view of a screw aligning machine according to the present invention, and FIG. 1 (B) is a front view of the screw aligning machine.

FIG. 2 is a perspective view of a coupling of a screw aligner according to the present invention.

FIG. 3 is a perspective view of a housing of the screw aligner according to the present invention.

FIG. 4 is a top view of a rotating disk and a housing of the screw aligner according to the present invention.

FIG. 5 is a top view of the screw aligner showing a state in which a rotary disc is removed.

6 (A) and 6 (B) are a top view and a front view, respectively, of a rail member on which a tray is mounted.

7 (A) and 7 (B) are a top view and a front view, respectively, of a tray of a screw aligner according to the present invention.

8 (A), 8 (B) and 8 (C) are top views of rail members of a screw aligner according to the present invention, respectively.
It is a front view and a left side view.

FIG. 9 is a top view of the screw aligner according to the present invention.

FIG. 10A, FIG. 10B, and FIG.
FIGS. 10C and 10D are schematic diagrams showing a continuous operation in which the rotating member collects the supply screws and transfers the supply screws to the tray.

FIG. 11 is a diagram schematically showing how the proper screw and the inappropriate screw attracted to the permanent magnet of the rotating disk are guided to the rail member.

FIG. 12 is a schematic perspective view of a screw supply device according to the related art.

[Explanation of symbols]

10 supply screw 11 Proper screw 12 Inappropriate screw 20 chassis 30 housing 31 opening 32 screw supply room 33 Screw storage chamber 34 central axis 35 Notch 40 Rail member 42 Guide part 43 Forward part 44 Extraction site 46 guide slit 47 guide groove 48 sliding surface 49 Guide protrusion 50 motor 51 shaft 60 coupling 61 Rotating member 611 First body of rotating member 612 Second body of rotating member 62 volts 64 fixing bolt 70 rotating disk 71 permanent magnet 72 Through hole 80 saucer 81 Receiving surface 82 wall 83 Mounting surface 90 Guide plate 91 grip 911 Mating groove 94-bit guide 95 Stopper mechanism 100 screw aligner 200 screw feeder 201 screw storage chamber 202 dipper 203 Shoota 204 second motor

Claims (5)

[Claims] 1. A housing, a rotation drive means, and a rotation drive means provided in the housing so as to partition a screw storage chamber into a space in the housing and rotated by the rotation drive means. A rotation disk fixed to the shaft and provided with the suction means separated from each other, and a rotation disk installed at the bottom of the screw storage chamber and having one end fixed to the rotation shaft of the rotation drive means for guiding the screw. A member, provided between the rotary member and the rotary disc, configured to capture the screw guided by the rotary member, and the captured screw is attracted by the suction means of the rotary disc. It is configured so as to capture and guide the receiving pan arranged at such a position and the screw that is adsorbed from the receiving pan by the adsorbing means of the rotating disc and rotates together with the rotating disc. And a rail member, screw alignment machine. 2. The rotating disk divides the space inside the housing into a screw supply chamber and a screw storage chamber, and the rotating disk is provided with a through hole communicating from the screw supply chamber to the screw storage chamber. The partition plate for blocking rotation of the screw in the screw supply chamber is provided in the housing.
The described screw aligner. 3. The rotating member has a first body portion extending along a bottom surface of the screw storage chamber and a second body portion inclined with respect to the bottom surface of the screw storage chamber. The screw aligning machine according to claim 1 or 2. 4. The first rail member has a sliding surface for supporting a lower surface of the head portion of the screw, in which a slot for guiding the shaft portion of the screw is formed along the longitudinal direction of the rail member.
A second part continuous from the first part, which includes a part and a sliding surface that supports the lower surface of the head part of the screw and is formed with a concave part that includes and guides the shaft part of the screw along the longitudinal direction. The screw aligning machine according to any one of claims 1 to 3, further comprising a portion. 5. The screw supplied to the inside of the housing by the rotation of the rotating member is mounted on the tray, the screw mounted on the tray is attracted to the rotating disk, and the rail member is rotated by the rotating disk. A method for automatically supplying a screw, characterized in that the sucked screw is guided.