JPS604636Y2 - Front and back button sorting mechanism - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mechanism for sorting the front and back sides of buttons, and particularly relates to a sorting mechanism that is effective for sorting the front and back sides of shell buttons made from processed natural shellfish.

Conventional common buttons are made of resin, and the outer peripheral surface and upper and lower surfaces are all molded into a fixed shape, and a concave or spiral shape is formed on either the upper or lower surface. It is possible and has been done for a long time to separate the front and back sides by installing a saw blade-shaped sorter in front of the button exit of a vibrating bowl with a rail.

However, although the outer circumferential surface of shell buttons is processed into a perfect circle and the front surface is processed into a concave shape, the back side is not processed into a certain shape and is irregular, probably due to the thickness of the shell. The shape is extremely irregular and uneven, and for this reason, it is impossible to separate the front and back of shell buttons using conventional saw-blade-shaped sorters, etc. Up until now, shell buttons have been separated from the front and back, and the button attachments have been sent to a sewing machine. There is no automatic feeding and sewing; instead, workers visually select the front and back sides, and those with buttons are sewn by hand by attaching them to the button holder of the sewing machine. The efficiency of the work was extremely low.

In order to solve this problem, the inventor conducted various experiments and found that
I noticed that the following phenomenon occurred in the shell button moving on the spiral track of the vibrating bowl.

In other words, the outer periphery of the shell button is processed into a perfect circle, and the concave outer edge of the front surface is processed until it intersects the outer circumferential circle, so the front surface touches the rail surface and turns inside out, allowing it to move along the rail. Since the outer edge of the shell button is in close contact with the rail, it does not vibrate up and down even when the bowl vibrates.

In addition, the back surface of the shell button is not flat and has irregularities, so the shell button, which is moving on the rail with the back surface in contact with the rail surface and the front surface facing upward, vibrates up and down due to the vibration of the bowl.

This invention makes it possible to sort out the front and back sides of shell buttons by utilizing the above two phenomena.

Hereinafter, an embodiment of this invention will be described with reference to the drawings. Reference numeral 1 denotes a bowl capable of accommodating a large number of buttons A at its bottom, and is subjected to vibration by an appropriate vibration source as is well known.

Reference numeral 2 denotes a conical spiral rail formed on the bowl 1, and as the bowl 1 vibrates, the buttons in the center thereof rise sequentially along the rail.

Reference numeral 3 denotes a flexible chute, one end of which has an opening (not shown) that is continuous with the button exit plane of the rail, and the other end with a button and a transfer mechanism (not shown) that transfers the button to the sewing machine. Connect to.

4 is a guide plate that guides the button A to the opening of the chute 3 as shown in FIG. 1, and its base is fixed to the inner surface of the outer wall 5 of the bowl 1.

Reference numeral 6 denotes a first regulating plate for preventing stacking of buttons at the opening of the chute 3, and its base is fixed to the outer wall of the bowl 1.

Reference numeral 7 denotes a support plate disposed in front of the opening of the chute 3, and is provided on the bowl 1 with one end protruding from the rail surface of the bowl 1 and the other end protruding outward from a notch 8 in the outer wall 5 of the bowl 1. The bowl 1 is fixed to the support part 9 with screws 11 through elongated holes 10 in the radial direction.

As shown in FIGS. 1 and 3, reference numeral 12 designates an auxiliary outer wall, which is fixed at both ends to the outer periphery of the outer wall 5 of the bowl 1 with screws, and has a notch 8 in the center corresponding to the inner circumferential surface of the outer wall 5. It is bent into an arc shape to form the outer wall of the section.

In addition, the protrusion of the support plate 7 toward the rail surface is such that the side farther from the button outlet is lower than the rail surface as shown in FIG. 2, and the nearer side is slightly higher than the rail surface, and as shown in FIG. The bowl has an inclined surface 13 that slopes low toward the inside.

Reference numeral 14 denotes a sorting body fixed with an adhesive or the like to the upper surface of the inclined surface of the support plate 7 on the inner side of the bowl, and has a thickness of about 0.5 mm and is placed on the side opposite to the button A passing through the inclined surface 13. ,
Parallel blade-like edges 15 are formed slightly above the upper surface of the cutting-shaped inclined surface 13 from the upper and lower surfaces toward the center of the thickness.

This invention has the above-mentioned structure, and when a large number of buttons are placed inside the bowl 1 and the bowl 1 is vibrated, the button A rides on the spiral track 2 and gradually spirals out. It begins to rise towards the direction.

The button A that has passed through the rail 2 in front of the uppermost support plate 7 is located on the inclined surface 1 of the support plate 7, which is lower than the rail 2 at that part.
3, the button A faces the edge 15 of the sorting body 14 as shown in FIG. 4, and first, as shown in FIG. In A, the shell button moves to the inclined surface 1 due to the vibration of the bowl 1.
3, it vibrates higher and lower than the lower edge 15, climbs over the edge 15, climbs over the upper surface of the sorting body 14, and falls into the internal force of the bowl 1.

Further, contrary to the button shown in FIG. 4, a reverse shell button in which the back side of the shell button faces upward and the front side is in contact with the inclined surface 13 does not vibrate up and down even when the button 1 vibrates, so the sorting body 14 Instead of coming into contact with the edge 15 of the sorting body and falling into the bowl 1, it is pushed by the thrust in the transfer direction due to the vibration of the bowl 1 and the subsequent shell button, and gradually moves toward the exit part along the edge 15 of the sorting body. Then, like the shellfish button A on the right end of FIG. 2, it falls from the slope 13 to the rail 2 near the button exit, which is lower than that, and is fed into the chute 3.

In this way, the shell button is fed into the chute 3 with the back side of the button facing upward.By gradually twisting the chute 3 halfway through 180 degrees, the button A is placed inside the chute 3.
is fed to the sewing machine with the surface facing upward.

In the above embodiment, the support plate 7 is inclined as shown in FIGS. 2 and 4, but this inclined surface 13 gradually moves the rail 2 itself from the state shown in FIG. 3 to the state shown in FIG. 4. It can also be formed so that it is inclined as shown in FIG.

Note that the edge 15 of the sorting body 14 in the above embodiment is shown as being cut from the top and bottom surfaces of the sorting body toward the center of the thickness as shown in FIGS. 3 and 4; It is also possible to form an edge slightly above the inclined surface of the support plate 7 by cutting only the slanted surface of the support plate 7, or to directly form an edge located slightly above the slope on the upper surface of the support plate 7 or the upper surface of the rail 2. Furthermore, by providing these edges 15 not only at one location on the rail 2 but at a plurality of locations, it is possible to further increase the probability of front/back separation.

Furthermore, the inclination angle of the inclined surface 13 can be arbitrarily selected.

In addition, the button for selecting the front and back is not limited to a shell button, but as long as the - side is in close contact with a flat surface and the other side is a large arc or the like and vibrates up and down with respect to the top surface of the rail due to the vibration of the bowl,
You can also sort the front and back sides of buttons made of synthetic resin, etc.

As described above, this invention has a button feeding device that sends out buttons by vibrating a bowl, which has a sloped part that slopes low toward the inside of the bowl and a sloped part on the rail before the button transfer path from the exit of the rail. By installing a sorter with a blade-shaped edge that faces the buttons slightly above the sloping part and placed inside the bowl that is passing through, the front and back sides of shell buttons, which were conventionally impossible to sort, can be automatically sorted. Now, buttons with buttons can be automatically supplied to the sewing machine, so compared to the conventional work where the worker visually sorts the front and back of shell buttons and attaches buttons to the button holder of the sewing machine by hand. This has the effect of significantly improving button attachment work efficiency and reducing worker fatigue.

[Brief explanation of drawings]

Figure 1 is a partial plan view of the bowl, Figure 2 is from ■-■ in Figure 1.
The sectional view, FIG. 3 is a sectional view taken along line 1--2 in FIG. 1, and FIG. 4 is a sectional view taken along line IV-IV in FIG. In the figure, 1 is a bowl, 2 is a rail, 7 is a support plate, 13 is an inclined part, 14 is a sorting body, and 15 is an edge.

Claims (1)

[Claims for Utility Model Registration] A bowl forming a V-shaped conical cylinder, and a conical spiral shape along the inner peripheral surface connecting the bottom of the center of the bowl and the outlet of the button opening at the upper edge of the outside. In a button dispensing device, the bowl is vibrated so that the buttons accumulated on the bottom are sequentially transferred to the outlet through the rails, and the buttons are transferred from the outlet to the outlet. A sloped part with a flat surface that slopes low toward the center of the bowl on the rail in front of the path, and a button that is placed closer to the center of the bowl than the button that passes through it, slightly above the sloped part, and parallel to the sloped part. A mechanism for sorting the front and back sides of a button, comprising a sorting body having a blade-shaped edge facing the button.