JPH08192318A - Screw feeder - Google Patents

Abstract

PURPOSE: To increase a useful frequency so as to lower costs for repair and renewal by preventing repeated application of bending moment to a point part (storage part) of a holding means during supply of screws and suppressing generation of irregular abrasion in a sliding means in a screw feeder. CONSTITUTION: A screw feeder 30 is provided with a plate-shaped holding means 12, in which a screw storage part 12a is formed, and a sliding means 11 sliding the holding means 12 to a case body 13 side. when a screw 21 is supplied, the point part lower face of the holding means 12 is supported on a supporting body 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw supply device, and more particularly to a screw supply device for taking out a plurality of stored screws one by one and supplying them to a driver device.

[0002]

2. Description of the Related Art FIG. 6 is a sectional view schematically showing a main part of a conventional screw supply device, and 11a in the drawing shows a shaft. The shaft 11a is formed in a substantially round bar shape, and the shaft 11a
Both ends of are fixed to the side wall of the housing 13. A bearing portion 11c is provided on the shaft 11a via a plurality of balls 11b, and a driving means (not shown) is connected to the bearing portion 11c. When the driving means is driven, the bearing portion 11c is driven.
The c can be moved in the left-right direction on the shaft 11a. The shaft 11a, the ball 11b, and the bearing portion 11
The slide means 11 is configured to include c and drive means. One end of the substantially plate-shaped holding means 12 is connected to the bearing portion 11c via a connecting portion 11d, and a housing portion 12a is formed near the other end of the holding means 12 and the housing portion 12a includes The screw 21 is adapted to be accommodated in the vertical direction. A screw supply device 80 is configured by including the housing 13, the sliding means 11, the holding means 12, and the like.

On the other hand, a driver device 22 is disposed above, for example, the left side of the screw supply device 80, a driver bit 22a is connected to the lower part of the driver device 22, and the driver bit 22a is driven in the vertical and rotational directions. It is like this. Further, a through hole is formed vertically in the driver bit 22a, and the upper side of the through hole is connected to a suction means (both not shown), and the tip end of the driver bit 22a is in the groove 21a of the head of the screw 21. When the suction means is inserted and driven, the screw 21 is attracted to this.

In the case of using the screw supply device 80 having such a structure, first, when the slide means 11 is driven to move the holding means 12 to the position of the holding means 12 ', the screws are accommodated (both not shown). Housed in. Next, when the slide means 11 is driven to move the holding means 12 to the left,
The screw 21 is taken out to a predetermined position below the driver device 22 on the side of the housing 13. Next, when the driver device 22 is driven to push down the driver bit 22a, the tip of the driver bit 22a is inserted into the groove 21a of the head of the screw 21. Next, when the suction means is driven, the screw 21 is attracted to the tip of the driver bit 22a, and the driver device 2
When 2 is driven, the driver bit 22a moves up while the screw 21 is attracted.

[0005]

In the above-described conventional screw supply device 80, each time the driver bit 22a is pushed down and inserted into the groove 21a of the head of the screw 21, about 2 to about 2 in the vicinity of the accommodating portion 12a of the holding means 12. A bending moment of 5 kgf is repeatedly applied, and uneven wear is likely to occur on the inner surface of the bearing portion 11c, the ball 11b, and the shaft 11a in the vicinity of points A and B. Therefore, the inner surface of the bearing portion 11c, the balls 11b,
Since a gap is generated between the shafts 11a, it becomes difficult to smoothly move the holding means 12 via the slide means 11, and as a result, the slide means 11 needs to be repaired or updated, resulting in cost increase. There were challenges.

The present invention has been made in view of the above problems, and prevents repeated bending moments from being applied to the tip portion of the holding means, suppresses uneven wear of the slide means, and improves the number of times of service. An object of the present invention is to provide a screw supply device that can be increased and can reduce the cost required for repairs and renewals.

[0007]

In order to achieve the above object, a screw supply device according to the present invention is a plate-shaped holding means in which a screw accommodating portion is formed, and the holding means is slid to the side of the apparatus main body. In a screw supply device provided with a slide means, the lower surface of the tip end portion of the holding means is supported by a support when the screw is supplied (1).

Further, the screw supply device according to the present invention is characterized in that the upper part of the support in the screw supply device (1) has a curved surface (2).

Further, the screw supply device according to the present invention is characterized in that the screw supply device (1) is provided with a rotating portion on an upper portion of the support (3).

Further, the screw feeding device according to the present invention is characterized in that the screw feeding device (1) is provided with an up-down driving means at a lower portion of the support body (4).

Further, the screw supply device according to the present invention is a screw supply device comprising plate-shaped holding means having a screw accommodating portion formed therein and sliding means for sliding the holding means to the side of the apparatus main body. A screw supply device (5), characterized in that a taper pin is provided at the tip of the holding means, and a support body having an insertion hole for the taper pin is provided.

[0012]

According to the screw supply device (1) having the above structure, the lower surface of the tip of the holding means is supported by the support when the screw is supplied, so that the support and the tip of the holding means. If a gap of a predetermined small distance is set between the lower surface of the part and the lower surface of the part, the tip of the holding means can be easily moved to above the support body by driving the sliding means, so that the screw is housed in the housing part. While being carried out, it is taken out to a predetermined position on the side of the apparatus. Further, when the driver bit is pushed down and inserted into the groove of the screw head, the holding means is slightly bent and the lower surface of the tip portion abuts against the support body, and the bending moment applied to the housing portion of the holding means is applied to the support body. It will be almost canceled by the supporting force of. As a result, uneven wear on the inner surface of the bearing portion of the slide means, the balls, and the shaft is suppressed, the number of times of service is increased, and the cost required for repair or renewal can be reduced.

Further, according to the screw supply device (2) having the above structure, since the upper part of the support of the screw supply device (1) has a curved surface, the support and the lower surface of the tip of the holding means are separated from each other. Even if a gap of a predetermined slight distance is not set between them, the tip of the holding means is moved to the upper portion of the support along the curved surface by driving the sliding means,
The screw is taken out to a predetermined position on the side of the device while being housed in the housing part. Further, when the driver bit is pushed down and inserted into the groove of the screw head, the lower surface of the tip end of the holding means is in contact with the upper part of the curved surface of the support body, and the bending moment applied to the housing portion of the holding means is applied to the support body. It will be immediately canceled by the support force of. As a result, uneven wear on the inner surface of the bearing portion of the slide means, the balls, and the shaft is further suppressed, the number of times of use is further increased, and the cost required for repair or renewal can be further reduced.

Further, according to the screw feeding device (3) having the above structure, since the rotating portion is provided on the upper portion of the support in the screw feeding device (1), the tip of the holding means is driven by the driving of the sliding means. When it reaches the surface of the rotating portion, the rotating portion rotates and the tip portion of the holding means is smoothly moved to the upper portion of the support body, and the screw is taken out to a predetermined position on the side of the device while being housed in the housing portion. It will be. When the driver bit is pushed down and inserted into the groove of the screw head, the lower surface of the tip of the holding means is in contact with the upper surface of the rotating portion, and the bending moment applied to the housing portion of the holding means is passed through the rotating portion. The supporting force of the support immediately cancels it. As a result, substantially the same operation as in the case of the screw supply device (2) can be obtained.

Further, according to the screw supply device (4) having the above-mentioned structure, since the vertical drive means is provided at the lower part of the support body of the screw supply device (1), the vertical drive means is operated when the slide means is driven. When the support is set to a predetermined height that does not interfere with the movement of the slide means, and the tip of the holding means is moved to above the support by driving the slide means, By operating the vertical drive means, the upper surface of the support can be brought into contact with and maintained at the lower surface of the tip of the holding means. Therefore, when the driver bit is pushed down and inserted into the groove of the screw head, the bending moment applied to the accommodating portion of the holding means can be immediately canceled by the supporting force of the vertical drive means via the support body. The presence of the support does not interfere with the movement of the slide means.

Further, according to the screw supply device (5) having the above structure, a plate-shaped holding means having a screw accommodating portion is formed,
In a screw supply device provided with a slide means for sliding the holding means to the side of the apparatus main body, a support body having a taper pin at the tip of the holding means and having an insertion hole for the taper pin is provided. Therefore, when the tip portion of the holding means reaches the vicinity of the support by driving the sliding means, the taper pin is inserted into the insertion hole,
The tip of the holding means can be easily moved until it comes into contact with the side surface of the support. Further, when the driver bit is pushed down and inserted into the groove of the screw head, the tip end of the holding means is supported by the support body through the taper pin and the insertion hole, so that it is caught in the holding portion of the holding means. The bending moment is immediately canceled by the supporting force of the support. As a result, substantially the same operation as in the case of the screw supply device (2) can be obtained.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a screw supply device according to the present invention will be described below with reference to the drawings. Note that components having the same functions as those of the conventional example are denoted by the same reference numerals. 1A and 1B are schematic views showing a first embodiment of the screw supply device according to the present invention. FIG. 1A is a perspective view, and FIG. 1B is a view when the holding means in FIG. The A line sectional view is shown. A substantially S-shaped support 31 is attached to the left side wall of the housing 13, the support 31 upper portion is formed in a substantially flat shape, and a distance is provided between the support 31 upper portion and the holding means 12 lower surface. A gap of t is set. In addition, the alignment means 1 including two rails 14a is provided at a predetermined position on the housing 13.
4 is arranged with a predetermined inclination angle θ, a hopper is arranged on the upper side of the aligning means 14, and a plurality of screws (both not shown) are housed inside this. . Then, the screws 21 are taken out from the lower part of the hopper, aligned in one row by the aligning means 14, slid down the slope, and housed one by one in the housing part 12a 'of the holding means 12'. Since other configurations are similar to those of the conventional configuration shown in FIG. 6, detailed description of the configuration will be omitted here. A screw supply device 30 is configured by including the slide means 11, the holding means 12, the housing 13, the alignment means 14, the support body 31, and the like.

On the other hand, a driver device 22 similar to that shown in FIG. 6 is provided, for example, on the upper left side of the screw supply device 30, and the driver device 22 is driven in the X-axis direction, for example. There is. Further, a table 23 is provided, for example, on the front side of the screw supply device 30, and the table 23 is driven in the Y direction. For mounting the screw 21 on the table 23 using a driver device 22. A work (not shown) is mounted.

In the case of using the screw supply device 30 constructed as described above, first, when the slide means 11 is driven to move the holding means 12 to the position of the holding means 12 ', one screw 21 is inserted from the aligning means 14. It slides down and is stored in the storage portion 12a '. Next, when the slide means 11 is driven to move the tip of the holding means 12 above the support body 31, the screw 21
Is taken out to a predetermined position below the driver device 22 on the side of the housing 13. The other screw 21 is prevented from falling by the side surface 12b of the holding means 12 and remains in the aligning means 14. Next, when the driver device 22 is driven to push down the driver bit 22a and bring it into contact with the head of the screw 21, the holding means 12 bends and its lower surface is supported by the upper surface of the support body 31. When the driver bit 22a is further rotated while being pushed down, the tip of the driver bit 22a is inserted into the groove 21a of the screw 21.

Next, when the suction means is driven, the screw 21 is attracted to the tip of the driver bit 22a, and when the driver device 22 is driven, the driver bit 22a is raised while the screw 21 is attracted. Next, when the table 23 is moved in the Y direction by a predetermined distance and the driver device 22 is moved in the X direction by a predetermined distance, the driver device 22 is driven and the driver bit 22a is rotated and pushed down.
A screw 21 is fastened to a predetermined portion of the work.

In the screw supply device 30 constructed as above, the bearing portion 11c of the slide means 11 and the ball 11 are provided.
b, the uneven wear on the shaft 11a was small, and the service life was about 1 to 2 million times. On the other hand, the support 3
In the conventional screw supply device 80 in which No. 1 is not provided, the service life was about 300,000 times.

As is clear from the above results and description, in the screw supply device 30 according to the first embodiment, a gap of a predetermined small distance t is set between the support 31 and the lower surface of the tip of the holding means 12. If this is done, the tip of the holding means 12 can be easily moved to above the support body 31 by driving the slide means 11, so that the screw 21 is taken out to a predetermined position on the side of the device 30 while being housed in the housing part 12a. Further, when the driver bit 22a is pushed down and inserted into the groove 21a of the head of the screw 21, the holding means 12 is slightly bent and the lower surface of the tip portion abuts the support body 31, so that a bending moment applied to the housing portion 12a of the holding means 12 is generated. It is almost canceled by the supporting force of the support 31. As a result, the bearing portion 11c of the slide means 11
Occurrence of uneven wear on the inner surface, the ball 11b, and the shaft 11a is suppressed, the number of times of service is increased, and the cost required for repair or renewal can be reduced.

FIG. 2 is an enlarged cross-sectional view schematically showing the vicinity of the support of the screw supply device according to the second embodiment, and 41 in the figure shows the support. The support body 41 is formed in a substantially S-shape, and the support body 41 has an upper surface with a curved surface 41a so that when the holding means 12 is pushed out by the slide means 11, the curved surface 41a and the lower surface of the holding means 12 come into contact with each other. It has become. Since other configurations are the same as those shown in FIG. 1, detailed description of the configuration will be omitted here. These slide means 11, holding means 12, housing 1
3, the screw supply device 40 is configured to include the aligning means 14, the support 41, and the like.

As is clear from the above description, in the screw supply device 40 according to the second embodiment, the support 41 and the holding means 12 are provided.
Even if a gap of a predetermined small distance is not set between the tip of the holding means 12 and the lower surface of the tip of the holding means 12, the tip of the holding means 12 is moved to the upper portion of the support body 41 along the curved surface 41a. Then, the screw 21 is housed in the housing portion 12a and taken out to a predetermined position on the side of the device 40. Further, when the driver bit 22a is pushed down and inserted into the groove 21a of the head of the screw 21, the lower surface of the tip end portion of the holding means 12 is in contact with the upper portion of the curved surface 41a of the support body 41, and the bending moment applied to the housing portion 12a of the holding means 12 is reached. Are immediately canceled by the supporting force of the support 41. As a result, the slide means 11
Occurrence of uneven wear on the inner surface of the bearing portion 11c, the ball 11b, and the shaft 11a is further suppressed, the number of times of service is further increased, and the cost required for repair or renewal can be further reduced.

FIG. 3 is an enlarged cross-sectional view schematically showing the vicinity of the support of the screw supply device according to the third embodiment, and 51 in the figure shows the support. The support 51 is formed in a substantially S shape, and a recess 52a is formed in the upper part of the support 51.
A substantially cylindrical rotor 52b is rotatably disposed in the recess 52a. The concave portion 52a and the rotating body 52b constitute the rotating portion 52, and the sliding means 11
When the holding means 12 is pushed out by the above, the lower surface of the holding means 12 and the upper portion of the rotating portion 52 come into contact with each other. Since other configurations are the same as those shown in FIG. 1, detailed description of the configuration will be omitted here. A screw supply device 50 is configured by including the slide means 11, the holding means 12, the housing 13, the alignment means 14, the support body 51, the rotating portion 52 and the like.

As is apparent from the above description, in the screw supply device 50 according to the third embodiment, when the tip of the holding means 12 reaches the rotating portion 52 by driving the sliding means 11,
The rotator 52b rotates to smoothly move the tip of the holding means 12 to the upper part of the support 51, and the screw 21 is housed in the housing 12a and taken out to a predetermined position on the side of the device 50. When the driver bit 22a is pushed down and inserted into the groove 21a of the head of the screw 21, the lower surface of the tip of the holding means 12 is in contact with the upper surface of the rotating body 52b, and the bending moment applied to the housing portion 12a of the holding means 12 is applied to the rotating portion. It is immediately canceled by the support force of the support body 51 via 52. As a result, it is possible to obtain substantially the same effect as in the case of the screw supply device 40.

In the third embodiment, the case where the rotating portion 52 is composed of the substantially cylindrical rotating body 52b and the concave portion 52a has been described, but in another embodiment, the rotating portion has a plurality of rotating portions. It may be composed of a rotating body having a spherical shape and a concave portion.

In another embodiment, the rotating roll may be rotatably arranged on the upper portion of the support.

FIG. 4 is an enlarged cross-sectional view schematically showing the vicinity of the support of the screw supply device according to the fourth embodiment, and 61 in the figure shows the support. The support body 61 is formed in a substantially columnar shape, and a substantially columnar recessed portion 61a is formed in an upper portion of the support body 61. When the support body 61 is pushed up, the lower portion of the screw 21 is inserted into the recessed portion 61a. Has become. A vertical drive means 62 having a predetermined stroke, such as an air cylinder, is attached to the lower part of the support 61.
The vertical driving means 62 is fixed to the side wall portion of the housing 13 via a bracket 62a. Since other configurations are the same as those shown in FIG. 1, detailed description of the configuration will be omitted here. These slide means 1
1, holding means 12, housing 13, aligning means 14, support 6
1, a screw supply device 60 including a vertical drive means 62, etc.
Is configured.

As is apparent from the above description, in the screw supply device 60 according to the fourth embodiment, when the slide means 11 is driven, the vertical drive means 62 is operated so that the support 61 does not interfere with the movement of the slide means 11. When the tip of the holding means 12 is moved to a position above the support body 61 by driving the slide means 11 after setting the predetermined height, the vertical drive means 62 is operated to hold the upper surface of the support body 61. The lower surface of the tip of the means 12 can be contacted and maintained. Therefore, when the driver bit 22a is pushed down and inserted into the groove 21a of the head of the screw 21, the holding means 1
The bending moment applied to the second housing portion 12a is applied to the support body 61.
While it can be canceled immediately by the support force of the vertical drive means 62 via the, the presence of the support body 61 does not interfere with the movement of the slide means 11.

In the fourth embodiment, the case in which the vertical driving means 62 is composed of an air cylinder has been described, but in the other embodiment, a hydraulic cylinder or a combination of a motor and a gear is used. It may be configured.

In the fourth embodiment, the case where the recess 61a is formed in a substantially cylindrical shape has been described.
The support 61 on the right side of the recess 61a may be provided with a notch having a shape substantially below the screw 21. In this case, when the support 61 is set downward, the height can be set relatively high, and the supply efficiency of the screw 21 can be improved.

FIG. 5 is an enlarged cross-sectional view schematically showing the vicinity of the support of the screw supply device according to the fifth embodiment, and 71 in the figure shows the support. The support 71 is formed in a substantially S shape, and the insertion hole 71a is formed at a predetermined position on the support 71.
Are formed in the long axis direction. On the other hand, a taper pin 71b is attached to the tip of the holding means 12, and the taper pin 71b is inserted into the insertion hole 71a when the holding means 12 is pushed out by the slide means 11. Since other configurations are the same as those shown in FIG. 1, detailed description of the configuration will be omitted here. These slide means 11, holding means 12, housing 1
3, a screw supply device 70 is configured including the aligning means 14, the support 71, the taper pin 71b, and the like.

As is apparent from the above description, in the screw supply device 70 according to the fifth embodiment, when the tip of the holding means 12 reaches the vicinity of the support body 71 by driving the slide means 11, the taper pin 71b is inserted into the insertion hole 71a. The distal end portion of the holding means 12 can be easily moved until it comes into contact with the side surface of the support 71. In addition, the groove 21 of the screw 21 head
When inserting the driver bit 22a by pushing it down to a,
The tip of the holding means 12 has a taper pin 71b and an insertion hole 71.
The holding means 12 is supported by the support 71 via a.
The bending moment applied to the housing portion 12a is immediately canceled by the supporting force of the support body 71. As a result, it is possible to obtain substantially the same effect as in the case of the screw supply device 40.

[0035]

As described above in detail, in the screw supply device (1) according to the present invention, the lower surface of the tip of the holding means is supported by the support when the screw is supplied. If a gap of a predetermined small distance is set between the support and the lower surface of the tip of the holding means, the tip of the holding means can be easily moved to above the support by driving the slide means. Therefore, the screw is taken out to a predetermined position on the side of the device while being housed in the housing part. Further, when the driver bit is pushed down and inserted into the groove of the screw head, the holding means is slightly bent and the lower surface of the tip portion abuts against the support body, and the bending moment applied to the housing portion of the holding means is applied to the support body. It is almost canceled by the supporting force of. As a result, the occurrence of uneven wear on the inner surface of the bearing portion of the slide means, the balls, and the shaft is suppressed, the number of times of service is increased, and the cost required for repair or renewal can be reduced.

Further, in the screw supply device (2) according to the present invention, since the upper part of the support of the screw supply device (1) has a curved surface, the support and the lower surface of the tip of the holding means are held. Even if a predetermined small gap is not set between the and, the tip of the holding means is moved to the upper part of the support along the curved surface by driving the sliding means, and the screw is accommodated. It is taken out to a predetermined position on the side of the apparatus while being accommodated in the section. Further, when the driver bit is pushed down and inserted into the groove of the screw head, the lower surface of the tip end of the holding means is in contact with the upper part of the curved surface of the support body, and the bending moment applied to the housing portion of the holding means is applied to the support body. It is immediately canceled by the supportive power of. As a result, the occurrence of uneven wear on the inner surface of the bearing portion of the slide means, the balls, and the shaft is further suppressed, the number of times of service is further increased, and the cost required for repair or renewal can be further reduced.

Further, in the screw supply device (3) according to the present invention, since the rotation part is provided on the upper part of the support in the screw supply device (1), the tip end part of the holding means is driven by the driving of the slide means. When reaches the surface of the rotating portion, the rotating portion is rotated and the tip portion of the holding means is smoothly moved to the upper portion of the support body, and the screw is accommodated in the accommodating portion while being positioned at a predetermined position on the side of the device. Taken out. When the driver bit is pushed down and inserted into the groove of the screw head, the lower surface of the tip of the holding means is in contact with the upper surface of the rotating portion, and the bending moment applied to the housing portion of the holding means is passed through the rotating portion. It is immediately canceled by the supporting force of the support. As a result, it is possible to obtain substantially the same effect as in the case of the screw supply device (2).

Further, in the screw feeding device (4) according to the present invention, since the vertical driving means is provided at the lower part of the support in the screw feeding device (1), the vertical direction is driven when the sliding means is driven. When the driving means is operated to set the supporting body to a predetermined height that does not interfere with the movement of the sliding means, and then the tip of the holding means is moved to above the supporting body by driving the sliding means. By operating the vertical driving means, the upper surface of the support can be brought into contact with and maintained at the lower surface of the tip of the holding means. Therefore, when the driver bit is pushed down and inserted into the groove of the screw head, the bending moment applied to the accommodating portion of the holding means can be immediately canceled by the supporting force of the vertical drive means via the support body. On the other hand, the presence of the support does not interfere with the movement of the slide means.

Further, the screw supply device (5) according to the present invention is provided with a plate-shaped holding means in which a screw accommodating portion is formed, and a sliding means for sliding the holding means to the side of the apparatus main body. In the screw supply device, since a tip end of the holding means is provided with a support body having an insertion hole for the taper pin, the tip end portion of the holding means is supported by the slide means. When it reaches near the body, the taper pin is inserted into the insertion hole, and the tip portion of the holding means can be easily moved until it comes into contact with the side surface of the support body. Further, when the driver bit is pushed down and inserted into the groove of the screw head, the tip end of the holding means is supported by the support body through the taper pin and the insertion hole, so that it is caught in the holding portion of the holding means. The bending moment is immediately canceled by the supporting force of the support. As a result, it is possible to obtain substantially the same effect as in the case of the screw supply device (2).

[Brief description of drawings]

1A and 1B are schematic views showing a first embodiment of a screw supply device according to the present invention, in which FIG. 1A is a perspective view, and FIG. 1B is a view when the holding means in FIG. The -A line sectional view is shown.

FIG. 2 is an enlarged cross-sectional view schematically showing the vicinity of a support of a screw supply device according to a second embodiment.

FIG. 3 is an enlarged cross-sectional view schematically showing the vicinity of a support of a screw supply device according to a third embodiment.

FIG. 4 is an enlarged sectional view schematically showing the vicinity of a support of a screw supply device according to a fourth embodiment.

FIG. 5 is an enlarged cross-sectional view schematically showing the vicinity of a support of a screw supply device according to a fifth embodiment.

FIG. 6 is a sectional view schematically showing a main part of a conventional screw supply device.

[Explanation of symbols]

 11 Slide Means 12 Holding Means 12a Screw Housing 30 Screw Supply Means 31 Support

Claims (5)

[Claims] 1. A screw feeding device comprising a plate-shaped holding means having a screw accommodating portion formed therein and a sliding means for sliding the holding means to the side of the main body of the apparatus. A screw supply device characterized in that the lower surface of the tip portion is supported by a support body. 2. The screw feeding device according to claim 1, wherein the upper portion of the support has a curved surface. 3. The screw feeding device according to claim 1, further comprising a rotating portion on an upper portion of the support. 4. The screw supply device according to claim 1, further comprising a vertical drive means provided at a lower portion of the support. 5. A screw supply device comprising plate-shaped holding means having a screw accommodating portion formed therein, and sliding means for sliding the holding means to the side of the apparatus main body, wherein a taper pin is provided at the tip of the holding means. A screw supply device having a support body having an insertion hole for the taper pin.