JP3408898B2 - Machine for aligning small screws - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, a machine screw,
The present invention relates to a machine screw aligning device for aligning a head fastener (hereinafter simply referred to as "machine screws") such as a bolt, a rivet or a nail in a certain posture.

[0002]

2. Description of the Related Art Conventionally, this type of aligning device has a structure as shown in FIG. This conventional aligning device 51 includes a case 52, two guide plates 53a, 5
3a has a configuration in which an alignment guide 53, which is parallel to and opposed to each other at a constant interval, is swingably provided in the vertical direction.
According to this, the alignment guide 53 is swung up and down, and the small screws S to S that have been inserted into the case 52 are mounted on the upper surface by an appropriate number while being untangled, and separated.
With respect to the separated small screws S to S, the head Sa of each small screw S is placed on the upper surface of the alignment guide 53 as shown in FIG. 9, and only the shaft Sb is attached to both guide plates of the alignment guide 53 by its own weight. It was possible to drop them between 53a, 53a to make a vertical posture, and freely slide on the tilted alignment guide 53 in this vertical posture to sequentially align them.

[0003]

However, since the above-mentioned conventional aligning device 51 has a structure in which the aligning guide 53 is directly swung up and down, it rides on the upper surface of the aligning guide 53 without the entanglement being completely unraveled. Small screws S
Inevitably, therefore, when the relatively long machine screws S are aligned, the shaft portion Sb does not fall between the guide plates 53a, 53a, and there is a problem that the alignment is not surely performed. The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a device for aligning machine screws that can perform more reliable alignment.

[0004]

Therefore, the present invention is
The aligning device has the configuration described in each claim. Claim 1
According to the alignment device described above , the lifter moves up and down to supply the small screws to the upper surface of the alignment guide. It is not configured to be placed. In addition, the lifter places the machine screws on its upper surface in a horizontally laid posture along the alignment direction in advance, and supplies the machine screws to the top surface of the alignment guide in this posture. In this way, the machine screws are supplied to the upper surface of the alignment guide in a state in which the machine screws are already laid sideways and pre-aligned in a posture (preliminary alignment). ,
After that, the upper surface of the alignment guide is slid in the alignment direction to be aligned sequentially. In this respect, in the past, since the alignment guide was vertically moved and the machine screws were directly placed on the upper surface of the alignment guide, the machine screws which are not in the lying-down posture along the alignment direction are also placed on the upper surface of the alignment guide. Therefore, there is a problem that the small screws are entangled with each other on the upper surface of the alignment guide and are not aligned.

According to the aligning device of the second aspect, a groove portion having a mortar-shaped cross section is formed on the upper surface of the alignment guide, and the groove portion serves as a guide surface for the machine screws supplied in a sideways posture. Function. That is, since the small screws supplied from the lifter in the laid-down posture are guided by the inclined surfaces of both guide plates and securely placed without dropping off from the upper surfaces of the alignment guides, efficient alignment is achieved. Claim 3
According to the aligning device described above , the small screws are placed on the upper surface of the auxiliary lifter in a horizontal posture and are supplied to the upper surface of the lifter, so that the preliminary alignment for supplying the upper surface of the alignment guide in the horizontal posture is performed by the lifter. And by the auxiliary lifter, the alignment is performed efficiently in this respect. Claim
According to the alignment device of item 4 , a flat plate-shaped lifter is provided on the side surface of the alignment guide so as to be vertically movable, and a flat plate-shaped auxiliary lifter is also vertically moved on the outer surface of the lifter in the same laminated state. By arranging as much as possible, the inclined surface of the upper surface of the lifter and / or the auxiliary lifter functions as a guide surface for holding the machine screws and the like in a horizontal position, and in this respect, efficient pre-alignment is performed. Further, the inclined surfaces of the lifter and the auxiliary lifter function as guide surfaces when the machine screws are supplied from the lifter to the alignment guide, and the machine screws can be smoothly supplied from the inclined surface to the gap through the guide surface.

According to the aligning device of the fifth aspect, machine screws are preliminarily aligned in a horizontal posture from the left and right sides of the upper surface of the aligning guide, which further enhances the efficiency of the aligning device. According to the aligning device of the sixth aspect, machine screws which are not aligned in the vertical posture on the upper surface of the alignment guide are corrected to the vertical posture or eliminated from the upper surface of the alignment guide. For example, it is sandwiched by small screws before and after the alignment direction,
The machine screws with the head projecting upward from the vertical position are pushed back in the anti-alignment direction by the movement of the entanglement releasing means, and thereafter, the entanglement releasing means is higher than the free sliding speed of the machine screws. Since it is returned to the alignment direction at a high speed, the machine screws pushed back in the anti-alignment direction again slide freely in the alignment direction. At this stage, the small screws from which the head has jumped out are corrected to a vertical posture in which the shaft portion is dropped between the guide plates to hook the head on the upper surfaces of the guide plates. Also, for small screws that have climbed forward and backward in the alignment direction on the top surface of the alignment guide and are still in the horizontal posture, correct them to the vertical posture at the stage of free sliding after being pushed back in the same anti-alignment direction. Or removed from the top surface of the alignment guide.

According to the aligning device of the seventh aspect, the lifter and the auxiliary lifter respectively disposed on the left and right sides of the alignment guide are moved up and down with a time lag using a single drive motor as a drive source. This time difference can be set arbitrarily by appropriately setting the deviation of the left and right eccentric discs in the rotational direction, and by setting this time difference appropriately, the left and right small screws can be efficiently alternated with respect to the upper surface of the alignment guide. It is also possible to supply small screws from the auxiliary lifter to the lifter. According to the aligning device of claim 8 , the left and right lifters and the auxiliary lifter and the entanglement releasing means are operated by a single drive motor, and the operation timings of the three are appropriately interlocked with each other, so that the aligning device is more efficient. can do.

[0008]

According to the present invention, the machine screws can be aligned more reliably and efficiently than ever before.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to FIGS. In the following explanation,
The "alignment direction" means the direction in which the aligned small screws S to S move in the aligned state (leftward in FIG. 2). Also,
Left and right in FIG. 2 (left and right in FIG. 3) are the front and rear of the alignment device, and left and right in FIG. 1 (up and down in FIG. 3) are the left and right or the width of the alignment device.

In FIG. 1, reference numeral 1 denotes a case of the aligning apparatus of this example, which is a box body which is open upward, and inside of which, an alignment guide 2, a lifter 3, an auxiliary lifter 4, a entanglement releasing means 5 and the like are provided. Is decorated. Each configuration will be described below.

A pedestal 6 is provided in the case 1 approximately in the middle of the vertical direction.
Is attached, and the inside of the case 1 is divided into generally two upper and lower stages, the upper side is a work input part 1a, and the drive mechanism of the aligning device is accommodated on the lower side. Pedestal 6
Are attached to the left and right side walls and the front wall of the case 1 so as to project inwardly.
It is supported by. Alignment guide 2, left and right lifters 3, 3 and left and right auxiliary lifters 4, 4 between the left and right pedestals 6, 6.
A guide member 7 for supporting the lifter 3 and the auxiliary lifter 4 so as to be movable in the vertical direction is arranged in a sandwiched manner. The upper surface of each pedestal 6-6 is formed in a downwardly inclined shape toward the inside, so that a large number of machine screws S-S that have been thrown in are sequentially moved toward the center, that is, the alignment guide 2. ing.

The alignment guide 2 is composed of two guide plates 2a, 2a in a flat plate shape and a base 2b. The base 2b is fixed to the center of the bottom of the case 1 in a standing shape along the front-rear direction, and further raised from the upper end of the base 2b so that the two guide plates 2a are fixed in parallel at a constant interval. Has been done. The upper surfaces of the two guide plates 2a, 2a, that is, the upper surfaces of the alignment guides 2, are machine screws S to.
It is a guide surface 2c for aligning S. Since the guide surface 2c is inclined downward in the alignment direction as shown in FIG. 2, the machine screws S aligned on the guide surface 2c.
~ S is adapted to freely slide in the alignment direction. The front end side of the alignment guide 2 is projected to the outside of the case 1 and is connected to, for example, a shooter of another device, although not shown.

As shown in FIG. 5, in the gap 2d between the guide plates 2a, 2a, the shaft portion Sb of the machine screw S is dropped between the guide plates 2a, 2a without any resistance.
a is set to a size that does not enter, so that the machine screws S mount their heads Sa on the guide surfaces 2c of both guide plates 2a, 2a, and the shaft portion Sb of both guide plates 2a, 2a.
It is designed to be held in a vertical position that is dropped in between. Further, since the guide surfaces 2c of the two guide plates 2a, 2a are formed in a downwardly inclined shape inward in the plate thickness direction, respectively, the guide surfaces 2c are formed on the guide surface 2c as shown in FIGS. ,
The machine screws S supplied in a posture in which the shaft portion Sb is aligned with the alignment direction (hereinafter, referred to as “sideways posture”) have the shaft portion Sb.
Is dropped into the gap 2d between the guide plates 2a, 2a by its own weight, and is efficiently corrected to the vertical posture shown in FIG.

Next, on the left and right side surfaces of the alignment guide 2, lifters 3 and 3 are arranged in a pair so as to be overlapped with each other, and auxiliary lifters 4 and 4 are provided on the outer side surfaces of both lifters 3 and 3. Similarly, 4 are arranged in a left-right pair in a superposed manner. The rear end portions of the lifters 3 and 3 and the auxiliary lifters 4 and 4 are supported by a guide member 7 having a substantially U-shape so as to be movable up and down. Has become.

As shown in FIG. 2, the upper portions of the lifter 3 and the auxiliary lifter 4 have a length in the front-rear direction along the range of the rear half of the alignment guide 2, and the upper surface of each of them has machine screws S. Preliminary alignment surfaces 3b, 4b for placing in a tilted position along the alignment direction (hereinafter referred to as "sideways position")
It is said that. The width (plate thickness) of the preliminary alignment surfaces 3b and 4b
Has a size such that only one small screw S can be placed on each of them, and two or more small screws S cannot be placed in parallel. Further, as shown in FIG. 1, the preliminary alignment surfaces 3b and 4b are formed inwardly, that is, on the inclined surfaces which descend toward the alignment guide 2 like the guide plates 2a and 2a of the alignment guide 2, respectively. The head Sa and the shaft Sb of the machined screws S are guided inward. As a result, the small screws S once placed in the laid-down posture are securely held on the preliminary alignment surfaces 3b, 4b of the lifter 3 or the auxiliary lifter 4 without falling off.

Next, a drive mechanism for moving the lifter 3 and the auxiliary lifter 4 up and down will be described. 2 to 4
In the figure, 10 indicates a drive motor. The drive motor 10 is attached to the lower part of the front wall of the case 1 via a bracket 11. On the other hand, a drive main shaft 13 is rotatably supported on the front wall of the case 1 via brackets 12, 12. Pulleys 14 and 15 are attached to the output shaft of the drive motor 10 and the ends of the drive spindle 13, and a timing belt 16 is stretched between the pulleys 14 and 15. Thirteen
Rotates. In addition to the pulley 15, the three pulleys 17 to 19 are attached to the drive main shaft 13 at predetermined intervals.

On the other hand, the bracket 2 is attached to the bottom of the case 1.
Two drive shafts 21 and 21 are rotatably supported via 0 and 20, and pulleys 22 and 23 are attached to outer end portions of both drive shafts 21 and 21, respectively. The timing belt 24 is also provided between the pulley 22 and the pulley 17, and between the pulley 23 and the pulley 18, respectively.
Twenty-five have been passed. Therefore, the drive main shaft 13 is rotated by the activation of the drive motor 10, so that both drive shafts 21,
21 rotates respectively.

An eccentric disc 30 is eccentrically attached to the inner end portions of both drive shafts 21 and 21, and a crank member 31 is attached to the inner end portions of both eccentric discs 30. Both crank members 31 are attached on the side opposite to the drive shaft 21 by 180 ° with respect to the center of the eccentric disc 30. A follower with a roller is used for the crank member 31.

Further, as well shown in FIG. 1, both eccentric discs 30, 30 are mounted so as to be displaced from each other by 180 ° in the rotational direction about the drive shaft 21.

Next, below the lifters 3 and 3 described above,
Each of the guide holes 3a is long in the alignment direction, and the roller portion of the crank member 31 is inserted into each of the guide holes 3a. Further, guide holes 4a that are long in the alignment direction are also formed in the lower portions of the auxiliary lifters 4 and 4, and eccentric discs 30 are inserted into both guide holes 4a. According to this structure, when both drive shafts 21 and 21 rotate due to the activation of the drive motor 10, both eccentric discs 30 and 30 rotate about the drive shaft 21, whereby both auxiliary lifters 4 and 4 move vertically. Translate to. Moreover, the two eccentric discs 30, 30 are rotated by 180
Since they are offset, the vertical movements of both auxiliary lifters 4 and 4 are reversed. That is, as shown in FIG. 1, when one auxiliary lifter 4 reaches the raised position, the other auxiliary lifter 4
Has reached a lowered position, so that when one auxiliary lifter 4 moves up, the other auxiliary lifter 4 moves down.

The eccentric discs 30, 30 rotate about the drive shaft 21 so that the crank members 31, 31 are rotated.
Revolves around a circumference centered on the drive shaft 21, whereby the lifters 3 and 3 move vertically in parallel. Since both crank members 31, 31 are also shifted by 180 ° in the revolution direction, when one lifter 3 reaches the raised position, the other lifter 3 reaches the lowered position, and when one lifter 3 rises, the other lifter 3 rises. Lifter 3 is lowered. The lifter 3 and the auxiliary lifter 4 are in sliding contact with each other between the alignment guide 2 and the pedestal 6 in a superposed state, and the rear edge of the lifter 3 and the auxiliary lifter 4 is a guide member 7.
It can be moved up and down smoothly by being supported by.

When the lifter 3 reaches the raised position, its preliminary alignment surface 3b is substantially flush with the guide surface 2c of the alignment guide 2, and when it reaches the lowered position, the auxiliary alignment surface 4b of the auxiliary lifter 4 together with the pedestal 6 are placed. Is almost flush with the upper surface of the. The auxiliary lifter 4 rises about half of the lifter 3, and when it reaches the lowered position, it is flush with the upper surface of the pedestal 6.

In this way, when the lifter 3 and the auxiliary lifter 4 reach the lowered position and their preliminary alignment surfaces 3b, 4b coincide with the upper surface of the pedestal 6, the small screws S through the pedestal 6 are inserted.
S is placed on the pre-alignment surfaces 3b and 4b, and then the lifter 3 and the auxiliary lifter 4 are lifted, so that only the machine screws S in the sideways posture remain on the pre-alignment surfaces 3b and 4b. That is, at this stage, the small screws S to S are laid sideways and pre-aligned in a posture.

The small screws S placed on the preliminary alignment surface 3b of the lifter 3 in a horizontal position move to the guide surface 2c of the alignment guide 2 in the horizontal position when the lifter 3 reaches the raised position. The machine screws S supplied on the guide surface 2c are corrected to the vertical posture as described above, and then the guide surface 2c
It slides on the top in the alignment direction and is aligned in sequence. The above operation is alternately performed on the left side and the right side of the alignment guide 2, and thereby the small screws S to S are alternately supplied to the alignment guide 2 so that the alignment guide 2 is sequentially aligned.

Next, the entanglement releasing means 5 is arranged near the front end of the alignment guide 2. The entanglement removing means 5 has a substantially block-like shape, and the guide surface 2c of the alignment guide 2 is provided via a support block 5a attached to the inner surface of the front wall of the case 1.
And is supported so as to be movable along the guide surface 2c with a slight gap therebetween. Although the gap D between the entanglement releasing means 5 and the guide surface 2c of the alignment guide 2 allows the machine screws S to S vertically aligned on the guide surface 2c to slide in the alignment direction. , For example in FIG.
As shown in (A), with respect to the machine screws S ′ in a state where the head Sa projects upward and is not aligned in the vertical posture, the head Sa contacts the rear surface (right end surface in the drawing) 5b and is aligned. It is dimensioned to prevent sliding in any direction. For this reason,
As shown in FIG. 7B, machine screws S ′ not in the vertical posture.
And the sliding of the machine screws S to S located behind this is prevented.

As a case where the guide surface 2c is not vertically aligned, in addition to the above case, for example, as shown in FIG. 7D, the machine screws S to S which are in the aligned state in the horizontal orientation.
It is conceivable that the head Sa comes into contact with the rear surface 5b of the entanglement releasing means 5 to prevent further sliding of the machine screws S ′ and S to S even after that. The same is true.

As shown in FIG. 2, the entanglement releasing means 5 is biased in the alignment direction by a compression coil spring 5c interposed between the entanglement releasing means 5 and the support block 5a. On the other hand, the entanglement removing means 5 is pushed back by the cam 40 in the anti-alignment direction (rightward in FIG. 2) by a predetermined distance.
The cam 40 is mounted on the outer surface of the front wall of the case 1 by the bracket 4
It is attached to a cam shaft 42 which is rotatably supported via 1, 41. In addition to the cam 40, a pulley 43 is attached to the cam shaft 42, and a timing belt 44 is stretched between the pulley 43 and the pulley 19 attached to the drive main shaft 13. Therefore, due to the rotation of the drive spindle 13 due to the activation of the drive motor 10,
As described above, the lifter 3 and the auxiliary lifter 4 move up and down, and the cam 40 rotates in synchronization with this.

A lift portion 40a is provided on the cam 40, and when the cam 40 rotates, the lift portion 40a.
Comes into contact with the front surface 5d of the entanglement releasing means 5 and pushes the entanglement releasing means 5 back in the anti-alignment direction against the compression coil spring 5c. When the entanglement releasing means 5 is pushed back in the anti-alignment direction, the small screws S ′ and the subsequent small screws S to S not aligned in the vertical posture are pushed back in the anti-alignment direction as shown in FIG. 7B. Be done.

Thus, when the cam 40 rotates while retracting the entanglement releasing means 5 and the lift portion 40a is disengaged from the front surface 5d of the entanglement releasing means 5, the entanglement releasing means 5 is pushed back in the alignment direction by the compression coil spring 5c. By appropriately setting the biasing force of the compression coil spring 5c, the entanglement releasing means 5 is returned to the alignment direction at a speed higher than the sliding speed of the machine screws S to S. Therefore, in FIG.
As shown in (C), the machine screws S ′ that have been pushed back in the anti-alignment direction and are not aligned in the vertical posture are corrected to the vertical posture by releasing the catches by the front machine screws S, and this state And slide in the alignment direction.

As shown in FIG. 7D, in the case of the machine screws S'located on the guide surface 2c in the horizontal position, the guides other than the case of being corrected to the vertical position as described above. It may be excluded from the surface 2c.

Thus, the entanglement removing means 5 in this example
Serves to prevent the small screws S'which are not aligned in the vertical posture from sliding in the alignment direction, and push them back in the anti-alignment direction to correct the vertical posture or remove it from the guide surface 2c. . As a result, entanglement of the machine screws S to S on the guide surface 2c is reliably prevented, and efficient alignment is achieved.

As described above, the aligning device of this example is
By moving the lifter 3 and the auxiliary lifter 4 up and down, the machine screws S to S on the pedestal 6 are moved to their preliminary alignment surfaces 3b,
It is configured to be placed on the surface 4b and be preliminarily aligned in a sideways posture, and the machine screws S to S are supplied onto the guide surface 2c of the alignment guide 2 in the sideways posture. The small screws S to S supplied in the laid-down posture are reliably corrected to the vertical posture by their own weight, and as a result, they are efficiently aligned. In this respect, the conventional aligning device 51 has a configuration in which the aligning guide 53 is moved up and down to place the machine screws S to S directly on the guide surface. Therefore, the machine screws S to S supplied on the guide surface are arranged. S
However, the small screws S which are not corrected to the vertical posture on the guide surface cannot be avoided, and as a result, the alignment efficiency is not necessarily good.

Further, in the aligning device of this embodiment, the upper surfaces (guide surfaces 2c) of both guide plates 2a, 2a are inclined inward, and the upper surfaces of the lifter 3 and the auxiliary lifter 4 (preliminary aligning surface). ) Since 3b and 4b are also inclined inward, reliable supply of the machine screws S to S onto the guide surface 2c or preliminary alignment by the lifter 3 and the auxiliary lifter 4 is efficiently performed.

Moreover, the aligning device of this embodiment has the entanglement removing means 5
Since the small screws S that are not vertically aligned on the guide surface 2c of the alignment guide 2 can be reliably excluded, the alignment efficiency of the alignment device can be further enhanced in this respect.

In the embodiment described above, the eccentric discs 30, 30 are attached with a shift of 180 ° in the rotational direction, but the shift between the two can be set arbitrarily. , Others, lifters 3, 3, auxiliary lifters 4, 4
The operation timing of the entanglement removing means 5 can be changed as appropriate.

If necessary, the auxiliary lifters 4 and 4 can be eliminated, and the lifter 3 or the lifter 3 and the auxiliary lifter 4 can be set only on one side of the alignment guide 2. is there.

[Brief description of drawings]

FIG. 1 is a front view of an alignment device in a state where a front wall of a case is removed according to an embodiment of the present invention.

FIG. 2 is a side view showing an internal configuration of an alignment device.

FIG. 3 is a plan view of the alignment device.

FIG. 4 is a front view of a drive mechanism of the alignment device arranged on the front wall of the case.

5 is a front view of machine screws arranged in a vertical position, as viewed from the direction of arrow A in FIG. 2. FIG.

6A and 6B are side views showing machine screws and the like on the guide surface of the alignment guide, in which (A) and (B) are in a sideways posture and (C) is in a vertical posture.

FIG. 7 is a side view showing the operation of the entanglement releasing means,
(A) is a state in which the small screws that are not aligned in the vertical position are prevented from sliding, (B) is a state in which the small screws are pushed back in the anti-alignment direction, and (C) is a state in which the entanglement releasing means is returned to a small size. It shows that the screws are corrected to the vertical position. Further, (D) is a side view showing machine screws that are not arranged in a vertical posture and are supplied on the guide surface in a horizontally laid posture.

FIG. 8 is a side view showing a schematic configuration of a conventional aligning device.

FIG. 9 is a perspective view showing a state in which machine screws are aligned with an alignment guide in a conventional alignment device.

[Explanation of symbols]

1 ... Case 2 ... Alignment guide 2a ... Guide plate, 2c ... Guide surface 3 ... Lifter, 3b ... Preliminary alignment surface 4 ... auxiliary lifter, 4b ... preliminary alignment surface 5 ... Entanglement release means 6 ... Pedestal 10 ... Drive motor 30 ... Eccentric disc 31 ... Crank member 40 ... Cam, 40a ... lift section S ... Small screws (counter screw), Sa ... Head, Sb ... Shaft S '... Machine screws not aligned vertically

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65G 47/14 B65G 25/00

Claims (8)

(57) [Claims] 1. A pair of guide plates each having an upper surface inclined downward in the alignment direction and facing each other at regular intervals in the plate thickness direction. The screws are slid in the alignment direction while the shafts of the screws are dropped between the guide plates, and the heads of the screws are retained in the vertical posture hooked on the upper surfaces of the guide plates. an alignment guide for aligning, moves up and down with respect to said alignment guide, placed at its side position along the small screws in the direction of alignment on the upper surface at the lowered position, elevated to rise while retaining the placing stationary state At the position, attach a lifter that supplies machine screws to the top surface of both guide plates to the alignment guide.
A machine for aligning small screws, which is equipped on both left and right sides . 2. The aligning device according to claim 1, wherein the upper surfaces of both guide plates are formed as inclined surfaces that are inclined inward in the plate thickness direction. 3. The aligning device according to claim 1, wherein at the lowered position, small screws are placed on the upper surface thereof in a laid-down posture along the alignment direction and raised while maintaining the placed state, A device for aligning machine screws, further comprising an auxiliary lifter for holding machine screws for supplying to the upper surface of the lifter in the sideways posture. 4. The aligning device according to claim 3, wherein the upper surface of the lifter and / or the auxiliary lifter is formed as an inclined surface which is inclined downward toward the alignment guide side. 5. The alignment device according to any one of claims 1 to 4, auxiliary aligning device of small screws, characterized in that arranged on the left and right sides with respect to aid lifter alignment guide. 6. The aligning device according to claim 1, wherein the machine screws which are not aligned in a vertical posture are moved upward along the upper surfaces of the two guide plates. The entanglement releasing means for forcibly pushing back to, and then moving in the downward tilt direction at a speed faster than the speed of free sliding in the downward tilt direction of the small screws is added. Alignment device. 7. The aligning device according to claim 5, wherein drive shafts rotated by a single drive motor are arranged on both left and right sides of the alignment guide, and eccentric discs are eccentrically provided on both drive shafts and rotate relative to each other. Mounted on both eccentric discs so as to be eccentric with respect to the drive shaft, and the auxiliary lifter is moved up and down by utilizing the rotational movement of the eccentric discs caused by the rotation of both drive shafts. A device for aligning machine screws, characterized in that the lifter is moved up and down by utilizing an orbital motion of the crank member around the drive shaft. 8. An aligning device in which the entanglement releasing means according to claim 6 is added to the aligning device according to claim 7, wherein the entanglement releasing means includes a cam rotated by a drive motor in the aligning device according to claim 7. A device for aligning machine screws, which is configured to move through.