JPS63176806A - Screw part aggregate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an assembly of screw parts for tightening screws.

As conventional technological products have become lighter, thinner, shorter and smaller, the screws that fasten these products have also become more precise and smaller. In order to automatically tighten screws, the screw supply methods generally include 0) a method consisting of a hopper with a scraping plate for separating and aligning, and an inclined chute for aligning and stocking the screws coming out of the hopper, (2) separating and aligning. There is a method consisting of a rotating or vibrating hopper, a linear feeder that aligns and stocks the screws coming out of the hopper, and an escape method. An example of the above-mentioned conventional method (1) comprising a hopper having a scraping plate and an inclined chute will be described below with reference to the drawings. FIG. 4 and FIG. 6 are diagrams showing an outline of the screw supply section.

Reference numeral 1 denotes a meniscus that swings around a fulcrum pin 3 using a motor 2 as a driving source. 4 is a hopper for stocking screws. Reference numeral 5 denotes a gate that allows the screws scraped up by the meniscus 1 to pass only in the correct direction, and scrapes the other screws into the hopper. 7 is a chute that feeds and aligns screws with correct directionality to the tips, and 6 is an upper guide that prevents the screws from coming out upwards. The operation of the screw supply section configured as described above will be explained below.

First, the meniscus 1 swings in the hopper 4 around a fulcrum pin using the motor 2 as a driving source. The meniscus 1 has a concave groove in the upper part, and when the meniscus 1 swings, the screw is scooped up, and the leg of the screw enters the concave groove and passes through the gate 6 in a stable state, and is sent to the chute 7 and It is aligned with the upper guide 6. When scooped up by meniscus 1, screws whose legs do not fit into the concave grooves flow over meniscus 1, but are scraped into the hopper at gate 5 and are not aligned in chute 7. It looks like this.

Problems to be Solved by the Invention However, in the screw supply unit configured as described above, if the leg length is short compared to the body diameter of the screw, the center of gravity is on the screw head side, so the meniscus has a single concave groove. It does not enter the leg of the screw and is not separated and aligned on the chute 7.

Also, screws with small leg diameters are difficult to enter into the meniscus groove. Alternatively, since it is difficult to adjust the clearance at the transition portion to the chute 7, it is difficult to separate and align them. There was a problem.

In view of the above problems, the present invention provides a stable supply of screws.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention has a structure of a screw parts assembly having a hole in the convex part and a screw leg arranged in the hole. .

Effects The present invention has the above-mentioned structure, and by changing the conventional screw balance, which was done by aligning and separating the screws, to a taping structure in which the legs are arranged in the holes of the convex parts, it is possible to solve the problem of unbalanced screws. , even precision machine screws can be stably supplied.

EXAMPLE Hereinafter, a taping structure according to an example of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a taping structure according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional side view.

In FIG. 1, 8 is a long member extending in one direction having a hole in the convex portion into which the leg of the screw is housed, that is, taping, and 9 is a screw. The operation of the taping structure constructed as described above will be explained below with reference to FIGS. 1 and 2. Figure 1 is a plan view, and Figure 2 is a cross-sectional view. By extending the length, it is possible to respond to changes in length.

Next, other embodiments of the present invention will be described. FIG. 3 shows another embodiment, which is a taping 1o in which the number of rows of screws is plural, and it is possible to increase the stock amount of screws.

Effects of the Invention As described above, according to the present invention, by having a hole in the convex portion and arranging the leg portion of the screw in the hole, it is possible to use a screw with a shorter leg length than the zero leg diameter of the screw or with a body diameter. The supply of small screws can be stabilized.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a threaded parts assembly according to an embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is a plan view of a threaded parts assembly according to another embodiment of the invention, and FIG. , FIG. 5 is a side view of a conventional screw supply section. 8.1Q...Taping, 9...Screw. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 4

Claims (3)

[Claims] (1) A convex portion is formed on a long member extending in one direction, and a hole is provided in the convex portion with a size large enough to prevent the head of the screw from passing through but allow the leg of the screw to pass through. A screw parts assembly with legs stored in these holes. (2) The screw parts assembly according to claim 1, wherein the hole is provided in the ceiling wall of the convex portion. (3) The threaded parts assembly according to claim 1, wherein one or more rows of convex portions are provided in the longitudinal direction of the elongated member.