JPH0351077Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention allows three separately formed components to be assembled with accurate mutual positional relationship, and thereby provides alignment screws. The present invention relates to a device for aligning and supplying screws that can easily configure a screw path.

(Prior art) Compressed air is blown into a hopper containing a large number of screws to agitate the screws, their shafts are guided in alignment into a guide groove opened in the hopper, and these screws are then guided through the guide groove. As a screw alignment and supply device that feeds screws to a predetermined position through a screw supply path defined in the middle of the hopper, the Utility Application No. 59-
Something like the one shown in No. 39074 has been proposed.

In the screw alignment device of the above type, the main body of the device is made of synthetic resin, and a pair of edges are formed on both sides of the screw guide groove to support the lower surface of the screw head and guide the shaft portion. parts and
A separate member that maintains the distance from the upper surface of the head of the screw supported by the edge member and defines a screw supply path from the hopper is molded from a separate metal material, and these three members are each attached to the device. Assembly was performed by assembling and fixing the device to the main body.

However, when the guide groove and the screw supply path are formed by three metal members, the screws cannot be guided or supplied well unless the positional relationship between each member is accurate. In particular, if the distance between the edge member and the separate member is too small or too large, the head of the screw may get stuck or the shaft may swing unnecessarily, resulting in a blockage in the screw supply path. Sometimes. However, in the past, the edge member and the separate member were assembled into the main body of the apparatus separately, so that the work had to be carried out by a skilled specialist in order to ensure mutual positional accuracy. In particular, when the above three components were to be replaced for repair purposes, the device had to be sent to a location where specialized workers were present, which was very inconvenient.

(Technical Problem of the Invention) The object of the present invention is to provide a screw aligning and feeding device which can solve the above-mentioned drawbacks and can particularly easily and accurately assemble an edge member and a separate member while ensuring positional accuracy. Consider it a technical issue.

(Means for Solving the Problems) In order to solve the above problems, a screw aligning and supplying device according to the present invention includes a hopper that accommodates screws and has a V-shaped guide wall, and a hopper that accommodates screws and has a V-shaped guide wall; A guide groove having opposing side walls that are open, and a screw supply path formed continuously in the longitudinal direction of the guide groove and defined for the hopper by closing an opening of the guide groove for the hopper. The screws are agitated by blowing compressed air into the hopper and into the guide groove, the screws are guided from the guide wall to the guide groove, and the lower surfaces of the screw heads are supported and aligned on the opening edge of the opposing side wall. In the screw aligning and supplying device that uses compressed air to force feed the screws into the screw supply path, the distance between the edge members forming both side walls of the screw guide groove and the top surface of the head of the screw supported by the edge member is determined. and a separate member that holds the screws and defines the screw guide groove relative to the hopper to constitute a screw supply path, and an engaging means that engages with each other at a predetermined assembly position, the engaging means It is characterized in that the edge member and the separate member assembled via the holder are fixed at a predetermined position in the main body of the apparatus.

(Operations and Effects of the Invention) As described above, according to the present invention, the edge member and the separate member engage with each other via the engagement means, so that their mutual positional relationship is accurately maintained.
Since the assembly assembled in this state can be fixed at a predetermined position in the main body of the apparatus, the positional accuracy of the edge member and the separate member is ensured in the assembled state. Moreover, the above assembly work is very easy.

Therefore, the practical effects of the present invention are very large.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In the figure, symbol A indicates a screw alignment and supply device. This screw alignment and supply device A is composed of a hopper 1 for accommodating screws N, a guide groove 2 opened inside the hopper 1, and a screw supply path 3.

The hopper 1 is made of synthetic resin, and has a V-shaped guide wall 5, 5 formed on the inner circumferential surface by facing each other with concave surfaces 4, 4 on a pair of cones, and is formed into a disk shape as a whole. , one concave surface part 4 is the device main body A
1, and the other concave portion 4 is provided as a lid 7 provided in an opening 6 for inserting screws, so as to be openable and closable. Further, the hopper 1 is provided with a compressed air blowing means 8, and the blowing means 8 is connected to a compressed air supply source (not shown).

Next, a guide groove 2 is opened along the guide walls 5, 5, and a screw supply path 3 is continuously formed in the longitudinal direction of the guide groove 2.

The guide groove 2 is formed by opening in the guide walls 5, 5 of the hopper 1, and allows the pair of edge members 9, 9 to face each other with an interval smaller than the head of the screw N and larger than the shaft part. It is formed by twisting. Therefore, the lower surface of the head of the screw N is supported within the guide groove 2 by the opening edge of the edge members 9, 9, and the shaft portion thereof is accommodated within the guide groove 2. The edge members 9, 9 forming the guide groove 2 are made of a metal material.

The screw supply path 3 is provided with a separate member 10 on the opening edge side of the guide groove 2.
The guide groove 2 is formed continuously with the guide groove 2 by closing the opening of the guide groove 2 and defining it with respect to the hopper 1. The separate member 10 is also made of a metal material, and screws N supported by the edge members 9, 9
The distance between the head and the top surface of the head is kept constant.

Each of the edge members 9, 9 and the separate member 10 is formed with an engaging means 11 that engages with each other at a predetermined assembly position, and both are assembled via the engaging means 11. That is, the edge members 9, 9 are provided with protrusions 13, 13 at predetermined intervals.
... are provided, each protruding piece 13 is formed with a convex portion 14 that protrudes outward, and each of these convex portions 14 is provided with a screw hole 15. On the other hand, in the separate member 10, among the protrusions 13, 13..., protrusions 16, 16... are bent at intervals corresponding to the protrusions 13, 13... belonging to the screw supply path 3. A fitting hole 17 is formed through each of the protrusions 16, 16, . Projections 13, 13 of the edge members 9, 9...
The convex portion 14 and the protruding pieces 13, 1 of the separate member 10
The engagement means 11 is constituted by the fitting holes 17 of 3..., and by fitting the convex portion 14 into the fitting holes 17, the edge members 9, 9 and the separate member 10 are assembled at a predetermined position. ing. Further, the edge members 9, 9 and the separate member 10 are fixed and fixed at predetermined positions of the synthetic resin device main body A1 constituting the hopper 1 with screws 18, as shown in FIGS. 3 and 4. has been done.

In this way, by engaging the edge members 9, 9 and the separate member 10 via the engaging means 11, their mutual positional relationship is accurately maintained. Since the assembly assembled in this state can be fixed at a predetermined position on the mounting body A1, the positional accuracy of the edge members 9, 9 and the separate member 10 is ensured in the assembled state. Moreover, the above-mentioned assembly work is very easy.

Note that the edge members 9, 9 and the separate member 10
The means 11 for engaging with is not necessarily limited to the above-mentioned example. For example, as shown in FIG. 6, it may be configured by a hole 20 and a caulking portion 21.

Further, in the above-mentioned screw arrangement device configuration, the blowing means 8 is inserted into the hopper 1 that accommodates a large number of screws N.
When compressed air is blown in and the screws N are stirred,
Some of them are guided into the screw guide groove 2 whose shaft part is opened in the hopper 1, and their heads are aligned and aligned, and furthermore, these alignment screws N are separated from the screws separated from the hopper 1 by the compressed air. The materials are fed through the similar supply path 3 and are fed under pressure to the escape tube 23 starting from the first one. Top screws N sent to escape tube 23
enters the escape tube 23 when the piston rod 25 of the cylinder device 24 is once pushed back by the compressed air supplied by the blowing means 8 to open the escape tube 23. Thereafter, when the piston rod 25 is returned to its original position by the force of the spring 26, the leading screws N are separated from the other screws N and pushed to the front position of the escape cylinder 23. As a result, the screws N are moved to a predetermined position in a screw tightening machine or the like by compressed air supplied from the hopper 1 through the screw supply path 3 and from the escape pipe 23 to the screw supply pipe 27 connected thereto. supplied to the position.

[Brief explanation of drawings]

Fig. 1 is a diagram of how the edge member and separate member are assembled in the screw aligning and feeding device according to the present invention, Fig. 2 is an exploded perspective view thereof, Fig. 3 is an overall perspective view of the screw aligning and feeding device, and Fig. 4 is a longitudinal sectional view of the screw alignment device, and Figures 5a and 5b are the fourth
FIG. 6 is a sectional view taken along the line X--X and Y--Y in the figure, and FIG. 6 is an explanatory diagram of another example of the engaging means. Code A...Screw alignment and supply device, 1...Hopper, 2...Guide groove, 3...Screw supply path, 5...
Guide wall, 9...edge member, 10...separate member, 11...engaging means, 14...convex portion, 17...
...Mating hole.

Claims (1)

[Claims for Utility Model Registration] A hopper that accommodates screws and has a V-shaped guide wall, a guide groove that has opposing side walls that open along the guide wall, and a guide groove that is continuously formed in the longitudinal direction. and a screw supply path defined for the hopper by closing an opening of the guide groove to the hopper, and stirring the screws by blowing compressed air into the hopper and the guide groove; The screw alignment and supply device guides the screws from the guide wall to the guide groove, supports and aligns the lower surfaces of the screw heads on the opening edge of the opposing side wall, and forces the screws into the screw supply path using the compressed air, A screw supply path is provided by maintaining a distance between the edge members constituting both side walls of the screw guide groove and the upper surface of the head of the screw supported by the edge member, and defining the screw guide groove relative to the hopper. An engaging means is formed on each of the separate members constituting the device at a predetermined assembly position, and the edge member and separate member assembled via the engagement means are placed at a predetermined position in the main body of the device. A screw alignment and supply device characterized by being fixed.