JPH019787Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a conveying device for small members such as a cap body, a cylindrical object, etc., which moves the small members in the horizontal direction from the falling direction.

Conventionally, in this type of device, for example, as in the initial resistance value classifier of the cap element shown in FIG. In order to prevent damage to the cap body 4 at the time of occurrence, a coil spring 6 having an inner diameter substantially the same as the inner diameter of the above-mentioned shoot pipe 1 is attached to the lower end of the shoot pipe 1 via a pipe holder 5 as shown in the figure. However, if an excessive force is applied to the coil spring 6 when a trouble occurs, the coil spring 6 may be deformed beyond its elastic return range, and this deformation may displace the position of the lower end opening of the coil spring 6. There are drawbacks such as the cap body 4 getting caught in the coil spring 6 and other problems.

The purpose of this invention is to avoid contacting and transferring small parts to the inner wall of the spring, and in addition, when a problem occurs, the spring is simply compressed, without bending the spring itself, and has good restorability and the position when restored. An object of the present invention is to provide a conveying device for small parts with high precision.

Hereinafter, the present invention will be explained in detail based on an embodiment shown in the drawings.

FIG. 2 is a perspective view of the small article conveying device according to this embodiment, FIG. 3 is a sectional view thereof, and FIG. 4 shows its operating state. The conveyance device of this embodiment has a chute pipe 1 for dropping the small member 10.
The lower end of the pipe 11 is fixed to the upper part of the through hole 12a of the stopper collar 12, which has a hole with substantially the same inner diameter as the pipe 11. A ball bearing 14 fitted in a ball bearing holder (hereinafter simply referred to as "ball holder") 13 is inserted into the cylindrical portion 12b of the lower part of the stopper collar 12 so as to be slidable in the axial direction. Furthermore, a screw hole body 16 as a spring receiving member is screwed into the lower part of the cylindrical portion 12b via a spring 15. By screwing the screw hole 16, the spring 15 is compressed between the screw hole 16 and the lower surface of the ball bearing 14. This restoring force is applied to the downward projecting ring 12c which is the contact part of the stopper collar 12 with the ball holder 13.
The pressure force between the stopper collar 12 and the ball holder 13 holds the stopper collar 12 against the ball holder 13 in the normal state shown in FIG.

Thereafter, the lower end opening 12 of the stopper collar 12 is placed over the arrangement small hole 18 of the index table 17.
The ball holder 13 is fixed to the machine stand side (not shown) so that the ball holders d face each other.

Since the configuration is as above, stopper color 1
2 is pressed against the ball holder 13 by the force of the spring 15 and held in the normal state shown in FIG. Small parts 1 transported from the chute pipe 11
0 is positioned on the index table 17 through the opening 12d of the stopper collar 12. Due to the intermittent movement of the index table 17, the opening 1
While being inserted into the small holes 18 that move sequentially downward 2d, they are sequentially and intermittently conveyed.

When a mistransfer of the small member 10 occurs, the force applied to the lower end of the stopper collar 12 moves the stopper collar 12 to the fourth position against the force of the spring 15.
As shown in the figure, it is possible to prevent damage to the small member 10 by tilting it, and if the small member 10 is removed in the event of a mistake, the stopper collar 12 is moved by the elastic force of the spring 15.
is returned to the state shown in FIG. 3, and intermittent conveyance is performed again in the normal state.

As described above, according to the present invention, when the shoot pipe is opposed to the arrangement small holes of the index table through the through hole of the stopper collar, the stopper collar is supported by the ball bearing of the ball holder;
Since the restoring force of the spring placed between the ball bearing and the stopper collar is used as the pressure contact force between the stopper collar and the ball holder, even if the stopper collar is tilted during a transition error, the spring will simply be compressed, unlike conventional methods. Since it is not bent, it has good restorability, and the positional accuracy at the time of restoration is accurate, so it does not affect conveyance even after a problem occurs, and there is no contact movement with the inner wall of the spring as in conventional methods. Also, small parts can flow smoothly.

[Brief explanation of the drawing]

Fig. 1 is a simplified slope view showing a conventional example, Figs. 2 to 4 show an embodiment of the present invention, Fig. 2 is a simplified slope view thereof, Fig. 3 is a partial longitudinal sectional view thereof, FIG. 4 is a longitudinal sectional view showing its operating state. 10...Small parts, 11...Chute pipe,
12...Stopper collar, 12a...Through hole, 13
...Ball holder, 14...Ball bearing, 15...
... Spring, 17 ... Index table,
18...Small hole.

Claims (1)

[Scope of utility model registration request] A cylindrical stopper collar having a through hole with approximately the same diameter as the inner diameter of the shute pipe is connected to the lower end of the shoot pipe so as to face the arrangement small holes of the index table, and the longitudinal midway part of this stopper collar is connected to the ball bearing of the ball bearing holder. A receiving member is attached to the lower part of the stopper collar, a spring is interposed between the receiving member and the ball bearing, and a contact portion with the ball bearing holder is attached to the upper part of the stopper collar. A conveying device for small parts, characterized in that it is provided with: