JPH036573Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a screw alignment device in which the main body of the device is made of synthetic resin, and metal materials are provided in areas where strength is required.

(Prior art and its problems) Recently, as a small and high-performance screw alignment device,
The systems shown in Figures 3a and 3b have been proposed and implemented. This is formed by forming the guide walls 2, 2 in the shape of a disc facing each other inside the disc-shaped hopper 1, and at the same time, between the circumferential ends of these guide walls 2, 2, there is a shaft smaller than the head part N1 of the screw type N. A guide groove 3 larger than the section N2 is formed by opening inward of the hopper 1, and a magazine section 6 having a screw alignment passage 5 is connected to the guide groove 3, and the magazine section 6 that is larger than the section N2 is opened inward of the hopper 1. The screws N are agitated by compressed air blown from the blowing means 7, and are dropped into the guide groove 3 along the guide walls 2, 2 so that the heads N1 are aligned and in the same posture, and then These are force-fed to the screw alignment passage 5 using compressed air and aligned.

Since such a screw alignment device has a complicated shape, if it is manufactured integrally from a hard metal such as iron, it is difficult to process, resulting in high cost, and is heavy and has poor portability. Therefore, it is desirable to be lightweight and able to manufacture it at low cost, but if the screw alignment device is made entirely of synthetic resin or light metal such as aluminum to reduce weight, the screws being stirred will be harder. Since this is large, only the parts that come in contact with screws and have a high frequency of collisions are worn out, resulting in a deterioration of the alignment function and durability. Moreover, even when manufactured from metal such as iron, wear is unavoidable, especially at the edges that support the lower surfaces of screw heads that are aligned or are being aligned in the hopper, and at the separator. It is uneconomical because the whole thing has to be replaced.

(Technical problem of the invention) The technical problem of this invention is to provide a screw alignment device that is lightweight, has low manufacturing cost, and can maintain alignment function and durability for a long time. shall be.

(Technical Means for Solving the Problems) In order to solve the above problems, the screw aligning device according to this invention forms a guide wall inside a disc-shaped screw storage hopper, and also forms a guide wall at the end of the guide wall. A guide groove smaller than the head of the screw and larger than the shaft is formed in the hopper by opening inward, and a screw alignment passage is connected to the tip of the guide groove. In a screw alignment device equipped with an air blowing means for stirring the screws at the rear end,
The edge part that supports the lower surface of the head of the screw in the guide groove and screw alignment passage, and the separator member that partitions the hopper and the screw alignment device are made of metal, while the device body is made of synthetic resin. The device is characterized in that the member constituting the edge portion and the separator member are fitted into a groove formed on the device main body side.

(Functions and effects of the invention) The screw alignment device has parts that frequently come into contact with or collide with screws, and other parts that do not. The edge part that supports the lower surface of the head of the screw in the guide groove and screw alignment path, which is frequently used, and the separator member that partitions the hopper and the screw alignment path are made of metal, so they do not wear out. Hateful. In addition, even if the edge component and separator member wear out, they can be easily replaced because they are fitted into the grooves on the main body of the device, and the screw alignment device returns to its original alignment function. can be recovered and durability can be improved. In addition, since the main body of the device is made of synthetic resin, it is lightweight, has excellent portability, and improves the ease of attachment to other devices. The remaining amount of screws can be easily checked from the outside.

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

In the figure, symbol A indicates a screw alignment device. The basic structure of this screw aligning device A is the same as the conventional one, in which mortar-shaped guide walls 2, 2 are formed facing each other inside a disc-shaped hopper 1, and the peripheral edges of these guide walls 2, 2 are formed oppositely. A magazine part in which a guide groove 3 smaller than the head N1 of the screw N and larger than the shaft part N2 is opened inward of the hopper 1 between the parts, and further has a screw alignment passage 5 in the guide groove 3. 6 is continuously formed, and the loose screws N accommodated in the hopper 1 are stirred by compressed air blown from a blowing means 7 (connected to an air supply source, not shown) opened in the hopper 1. The screws are dropped into the guide groove 3 along the guide walls 2, 2 in the same posture, and then guided from the guide section 4 to the screw alignment passage 5 by the compressed air, and then placed into the passage 5. They are fed under pressure and aligned.

8 is a separator member. The separator member 8 separates the hopper 1 and the screw alignment path 5, and immediately before it, a guide portion 4 is formed for guiding the screws N that have fallen into the guide groove 3 to the screw N alignment path 5. has been done. After passing through the guide portion 4, the screws N in the guide groove 3 are separated from the hopper 1 by the separator member 8 and guided to the screw alignment passage 5.

Next, in the screw aligning device A, the separator member 8 and the member 9 forming the edge portion supporting the lower surface of the head N1 of the screw N in the guide groove 3 and the screw aligning passage 5 are made of iron. The main body of the device is made of transparent engineering plastic. The member 9 constituting the edge portion and the separator member 8 are fitted into a fitting groove 10 formed on the main body side of the apparatus, and fixed by adhesive, screwing, or the like.

As mentioned above, since the main body of the device is made of transparent synthetic resin, it is possible to visually check the remaining state of the screws N in the hopper 11 from the outside, and it is lightweight and has excellent portability, making it easy to attach to other devices. Sexuality also improves. In addition, an edge portion that supports the lower surface of the head of the screw N that frequently comes into contact with and collides with the screw N;
Since the separator member 8 that partitions the hopper 1 and the screw alignment path 5 is made of a metal material, it is difficult to wear out. Even if worn, the edge portion component member 9 and separator member 8 will remain in the groove 1 on the device main body side.
0, it can be easily replaced, and by replacing the screw aligning device A, the screw aligning device A can regain its original aligning function and its durability can be improved.

Note that an escape section 11 is provided at the end of the magazine section 6 of the screw aligning device A. The alignment screws N in the alignment passage 5 are sequentially transferred into the escape section 11 by the air flow from the blowing means 7, and further forwarded by the protruding means 12 provided at the rear end opening of the escape section 11. It is ejected to an appropriate location by the air flow from the blowing means 7.

[Brief explanation of the drawing]

Figure 1 is a central vertical sectional view of the screw alignment device according to this invention, and Figure 2 is a cross-sectional view of the screw alignment device taken along line X-X.
Cross-sectional view taken along the line, Figures 3a and b
1A and 1B are respectively a center longitudinal sectional view and a transverse sectional view of a conventional screw alignment device. Code A...Screw alignment device, 1...Hopper 1,
2... Guide wall, 3... Guide groove, 5... Screw alignment passage, 6... Magazine section, 7... Blowing means,
8... Separator member, 9... Edge portion constituent member.

Claims (1)

[Scope of utility model registration request] A guide wall is formed inside a disc-shaped screw accommodating hopper, and a guide groove is formed at the end of the guide wall, which is smaller than the head of the screw and larger than the shaft part, and is opened inward of the hopper. Further, in the screw alignment device, a screw alignment passage is provided at the tip of the guide groove, and an air blowing means for stirring the screws is provided at the rear end of the guide groove. The edge part that supports the lower surface of the head of the screws in the screw sorting passage and the separator member that partitions the hopper and the screw sorting passage are made of a metal material, while the main body of the device is made of synthetic resin, and the edge part 1. A device for aligning screws, characterized in that a member constituting the component and a separator member are fitted into a groove formed in a main body of the device.