JPS58212530A - Device for aligning headed rods - Google Patents

Abstract

PURPOSE:To aim at enhancing the feed capacity of headed rods, by making the headed rods which are put on a chute in random attitudes, naturally fallen from the chute and as well by increasing the number of the headed rods which are aligned in a proper attitude. CONSTITUTION:Headed road 22 in a rotary drum 4 are scooped up by scooping blades 5, are fallen onto a receiving plate 11, and then are led into a semi-circular groove 16 through a chute 10. Then, the headed rods 22 are transferred through the semi-circular groove 16 in the direction of the arrow (x) since the chutre 10 is vibrated. At this time the headed rods 22 having their axial directions which are not aligned with the semi- circular groove 16 drop in the directions of the arrows (x, y) at notch parts B, C, but those having axial directions which are aligned with the semi-circular groove 16 are transferred to a part D in the chute 10. Then, the headed rods 22 which are fed by being suspended through an aligning groove 17, are held at the outer pieriphery of the shank part thereof with a side wall 18 and at the end face of the shank part thereof with a bottom 19 in a notch part E, and are sent to a feed groove 21 where the headed rods 22 are pushed out in the direction of the arrow (u). The headed rods which are in the random shapes and are removed from notch parts B, C, E, are returned into the drum 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an alignment device for aligning headed bars such as screws, rivets, etc., consisting of a head and a shaft, especially when the head has a short shaft length compared to the diameter of the head. The present invention relates to a device that efficiently aligns and supplies attached bars.

Conventionally, this type of headed bar alignment device was developed, for example, in
As described in Japanese Patent Application Laid-open No. 4-26210 and Japanese Patent Application Laid-open No. 48-2667, as shown in FIG. 1
are aligned and supplied into the groove 3 formed by the above. However, as shown in Fig. 2, when the total length l of the headed bar 2a is shorter than the width W of the groove 3 of the sheet 1, it is unlikely that the headed bar 2a will be suspended in an aligned manner on the chute 1, but rather irregularly in various forms. It was more common to land on the Seatler.

Therefore, the headed bar placed on the sheet 1 in such an irregular position is removed by a removing tool that rotates on the seater or moves back and forth on the sheet as shown in Japanese Patent Application Laid-Open No. 56-48321. They were forcibly removed using a removal plate, etc. Further, when the overall length l of the headed bar 2δ and the groove width W of the sheet 1 are the same or similar, the headed bar 2a is stuck in the groove 3.

There was a problem of not being able to supply it.

The present invention eliminates the above-mentioned drawbacks, and allows the headed bars that are placed on the sheet in an irregular posture to fall from the chute as naturally as possible, and also allows the headed bars to be aligned on the chute in the correct posture. This invention relates to an improvement of the seat of a headed bar alignment device for the purpose of increasing the number of bars and improving the feeding capacity, and one embodiment of the present invention will be described with reference to FIGS. 3 to 16.

Reference numeral 4 denotes a rotating drum, which has scooping blades 5 on its inner surface and is a container made of headed bar material. Reference numeral 6 indicates a driven roller, and reference numeral indicates a drive roller, which is rotated by a motor 9 via a round belt 8, and the rotary drum 4 placed in contact with the round belt B also rotates synchronously. 10 is a 7-t, and is attached to the shoe 10 with a plate. Reference numeral 12 denotes a bracket for attaching the sheet w to a vibrating linear feeder 13 that feeds the parts on the sheet 10 by vibration. A bracket 15 is attached to the base 14 for mounting the vibrating linear feeder 13 and the motor. In FIGS. 6 to 14, a semicircular groove 16 having a radius slightly larger than the head radius of the headed bar is formed on the upper surface of part A of the part A, and Notches B and C having an angle θ1 slightly outward from the center of the semicircular groove 16 are provided at symmetrical positions with the circular groove 16 as the center.

(See Figures 8 and 9) In a part continuous with the part A, the arcuate outer periphery of the semicircular groove 16 is slightly larger than the shaft diameter of the headed bar, and the head diameter Sheet 10 with alignment grooves 17 having a groove width smaller than
A conical groove 16a is continuously formed so as to be in contact with the upper surface. (See FIGS. 10, 11, and 12) A notch E is formed at the end of the alignment groove 17, and the side wall 18 and bottom 19 supporting the shaft of the headed bar have a 02 minute diameter. It is formed at an angle.

(See Fig. 13) Note that the groove bottom 2o of the alignment groove 17 is the semicircular groove 1.
6 and the alignment groove 17 are at a position deeper than the axial length of the headed bar when the headed bar is suspended in the alignment groove 17, and there is an upward slope toward the bottom 19 of the notch E. It becomes.

Reference numeral 21 denotes a supply groove, which is continuously formed from the notch E, and is slightly larger than the shaft diameter of the headed bar and smaller than the head diameter. The groove bottom is F′i deeper than the shaft length of the material, and headed bars are aligned and suspended to a predetermined location and fed.

Next, the action will be explained. The rotation of the motor 9 causes the drive roller to rotate, the driven roller 6, and the rotary drum 4 via the round belt 8.
rotates. A large number of headed bars 22 stored in the rotating drum 4 are scooped up by scooping blades 6, and the receivers are dropped onto the plate 11. (The state is shown in FIG. 4.) The headed bar 22 that has fallen onto the plate 11-H is placed on the plate 11 because the plate 11 is inclined in the direction of the semicircular groove 16 of the sheet 10. It is guided into the circular groove 16. Next, due to the vibration of the vibrating linear feeder 13, the sheath 110 also vibrates, and the headed bar 22 is fed in the direction of the arrow X in the semicircular groove 1θ, as shown in FIG. At this time, the headed bars 22 are sent in the semicircular groove '16 while being arranged irregularly, but as shown in FIGS. 8 and 9, the axial direction of the semicircular groove 16,
The headed bars 22 whose axial directions do not match fall in the directions of arrows Y and Z at the notches B and C, respectively, and
The headed rod @22 whose axial direction coincides with the axial direction of the semicircle m16 moves further forward and is fed to a part of the sheet 10. As shown in FIGS. 10 and 12, the headed bar 22 that has been fed while crossing inside the semicircular groove 16 is
In the conical groove 16a continuously formed from the semicircular groove 16 to the alignment groove 17, the head of the headed bar 22 is gradually suspended with the shaft part facing downward, and the headed bar 22 is , 22a
.

The state is such that 2≧b, the paper stands erect, and is supplied to the alignment groove 17.

The headed bar 22 that has been suspended and supplied through the alignment groove 17 is supported by the side wall 18 at the outer periphery of the shank of the headed bar 22 at the notch E, and by the bottom 19 at the end surface of the shank. ′! ,
Sent by (The state is shown in FIG. 13, FIG. 14, and FIG. 15.) In the supply groove 21, the head of the headed bar 22 is suspended again, and it is aligned and fed to a predetermined location. C)
In some cases, the headed bars 22 that have been aligned and suspended in the supply groove 21 are temporarily stopped at the final end of the supply groove 21 by, for example, a separating device. Finally, they are fully aligned up to the notch E. Then, as the headed bar 22 continues to be supplied, the headed bar 22 on the notch E is moved as shown in FIG. It is pushed out in the direction of arrow U, falls, and enters the supply groove 2.
It is possible to continuously supply the headed rods 22 in the rod 1 without disrupting their alignment. The headed bar 22 in the irregular position which has been dropped and removed at the notches B, C, and E is recovered into the rotating drum 4 and fed onto the seat truck 0 again.

A photoelectric switch or the like is provided in the middle of the supply groove 21, and when a certain amount of headed bars are aligned up to the photoelectric switch section, the rotation of the rotating drum 4 is stopped and the headed bars are removed from the photoelectric switch section. If the structure is such that the headed bar material is supplied again by the rotation of the rotary drum when the rotary drum is rotated, the above-mentioned notch portion EI/'i is unnecessary.

FIG. 16 shows another embodiment of the present invention, in which 23 is a hopper for storing headed bars, 24 is a scoop plate that swings up and down in the hopper 23, 26 is a swinging rod, and shaft 26f: a motor as a fulcrum. It is in contact with a roller 29 attached to the tip of an arm 28 provided at 27. The sheet 30 has a shape similar to that shown in FIG. 5 above, and is attached to a vibrating linear feeder 31.
A portion shaped from the semicircular groove 16 to the notch E is exposed into the hopper 23. The swinging rod 26 swings due to the roller 29 that revolves due to the rotation of the motor 27, and the scoop plate 24 similarly swings up and down. When the scooping plate 24 descends, it immediately picks up a large number of headed bars stored in the hopper 23, and when it rises to the top dead center, the lifted headed bars slide onto Sea Toro 0. . sheet 3o
As mentioned above, the headed bars sent upward are aligned and suspended until they reach a predetermined location.

As described above, according to the present invention, the headed rod rests on the sheet E in an irregular posture due to the notch provided in one straight sheet and the conical groove continuously formed in the semicircular groove and the alignment groove. To remove materials by falling naturally, and to align and supply only materials in the correct orientation with a simple structure, without requiring a rotating removal tool or a reciprocating removal plate, etc., which has a complicated structure as in the past. Also, there is no damage when removing a bar with a head in an irregular position. Further, since all the semicircular grooves and the headed bars whose axial directions coincide can be suspended and aligned, there is an excellent effect of improving the feeding capacity of the headed bar supplying device.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main part of a sheet of a conventional alignment device. Fig. 2 is a cross-sectional view of a main part of Sea-1 in which headed bars in irregular positions are placed on Sea-E, and Fig. 3 is a front view of a headed bar alignment device according to an embodiment of the present invention. , FIG. 4 is a cross-sectional view of the main part of the rotating drum section of the same device, FIG. Figure 7 is a cross-sectional view of the same sheet, Figure 8 is a cross-sectional view taken along line FF in Figure 6, Figure 9 is a cross-sectional view taken along line G-G in Figure 5, and Figure 10 is a cross-sectional view taken along line GG in Figure 6. An enlarged plan view of part D, FIG. 11 is a sectional view taken along the J-J line in FIG. 10,
12 is a partial sectional view of FIG. 10, FIG. 13 is a sectional view taken along line H-H in FIG. 6, FIG. 14 is a partial sectional view of the supply groove, and FIG. 16 is I-I in FIG. 6. Line cross section, 1st
FIG. 6 is a front view of a headed bar alignment device in another embodiment of the present invention. 4...Rotating drum, 5,..., scooping blade, 1゜0・绢...Chute, 11o...Receiver (/'
f plate, 13... Vibrating linear feeder, 16...
...Semicircular groove, 17...--Alignment groove, 18...
・・・Side wall, 19..., ・Bottom, 21...
Supply groove, 22...--headed bar material. Name of agent: Patent attorney Toshio Nakao Haga 1 person No. 4
Figure 5 Figure 5 Figure 6 Figure 12 and Figure 13 θ Figure 14

Claims (3)

[Claims] (1) A semicircular groove that is provided to accommodate part or all of the headed bar and extends in one direction, and the axial center of this semicircular groove and the axial center of the headed bar When the directions do not match, a notch provided on at least one side of the semicircular groove so as to remove the headed bar, and a notch that connects with the semicircular groove and moves inside the semicircular groove in the axial direction. A headed bar having a suspension groove that is smaller than the head diameter of the headed bar and larger than the shaft diameter so that the guided and fed headed bar is suspended upright with its shaft facing down. Alignment device. (2) A patent claim in which a side wall that supports the shaft outer periphery of the headed bar and a bottom that abuts the shaft end are provided at a predetermined position of the suspension groove, and the side wall and the bottom are formed with a slight angle of inclination. The headed bar alignment device according to item 1. (3) The headed bar alignment device according to claim 1, wherein the notch portions are provided on both sides along the axial center of the semicircular groove.