JPH03167894A - Pipe route for conveyance of dip component - Google Patents

Abstract

PURPOSE:To convey a DIP component between two arbitrary points by a method wherein a wire material composed f a spring material is wound tightly and a pipe-shaped body whose cross section is prescribed and which can be bent is formed. CONSTITUTION:A pipe route, for conveyance use, of a DIP component is formed of a pipe material 10 formed by tightly winding a wire material 11 composed of a spring material so as to be a specified coil shape. The pipe-shaped body 10 is a continuous body of the wire material 11 comprising repetition of unit turns 12 having a prescribed profile, the individual unit turns 12 are brought into close contact with each other without any gap by the resiliency of the wire material 11. The profile of the individual unit turn 12 is defined on the basis of the profile of a DIP component D. The DIP component D is composed of a main body Da and many pins Db. The unit turns 12 form a pin-passage part 12b, on both sides, which houses the pins Db of the component D and a main-body passage part 12a, in the center, which houses the main body Da. The pipe-shaped body 10 can be bent freely by its resiliency, and the carrying-in end IN and the carrying-out end OT can be changed freely.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a DIP component transport pipe used for transporting DIP components to a predetermined position in an automatic component insertion device for mounting electronic components on a printed circuit board, etc. related to the road.

Conventional printed circuit board assembly operations include a so-called insertion process in which various electronic components are inserted into component mounting holes of the printed circuit board and mounted. This process is a complicated process in which a large number of electronic components are inserted into precise positions according to their specifications, so efforts have been made to automate this process for a long time, and various automatic component insertion devices have been developed and put into practical use. has been done.

DIP parts (Dual
When handling (in-4, ine package parts), it has been common to use a narrow inclined tray as a conveyance means. For example, a turntable is installed above the device, and on top of the turntable, a number of stock cases containing DIP parts according to each standard are stored in a line in one direction are mounted upright, and the turntable is rotated. A predetermined stock case is selected, a DIP component of a predetermined standard is taken out from the lower end of the stock case, and the DIP parts are transported to a predetermined insertion position via an inclined tray.

Problems to be Solved by the Invention Accordingly, according to the prior art, the inclined tray is
Due to lack of flexibility, DIP parts can essentially only be transported between two fixed points, which poses a problem in that there are significant restrictions on device design. In addition, for the same reason, a turntable has to be used to select a predetermined DIP component, and when handling a wide variety of DIP components, it is possible to avoid increasing the size and complexity of the entire device. There was also the problem of not having one.

Therefore, in view of the problems of the prior art, an object of the present invention is to tightly wind a wire made of a spring material to form a bendable tubular body with a predetermined cross section, so that a DIP component can be attached between any two points. An object of the present invention is to provide a conduit for transporting DIP parts that can be transported.

Means for Solving the Problems The structure of the present invention for achieving the above object is to form a tubular body by tightly winding a wire made of a spring material, and this tubular body regulates the running posture of the DIP component. It has a cross section consisting of pin passage parts on both sides and a main body passage part in the center, and its gist is that it can be bent without deforming the cross section.

Note that the tubular body may have a surface coating of conductive resin.

With this structure, the tubular body is formed by closely winding a wire made of spring material, so it has flexibility as a whole, and both ends can be moved to any position. It is movable, and therefore, the relative positional relationship between the input end for inputting DIP parts and the output end for taking out the DIP parts can be arbitrarily set and changed. Further, the tubular body can regulate the passing posture of the DIP component by the cross section consisting of the bottle passing portions on both sides and the main body passing portion in the center. In addition, the tubular body bends due to the accumulation of slight misalignment of the many wire rods that form its cross section.
Changes in the partial cross-sectional shape can be ignored, and therefore, the inserted DIP component is bent and transported according to the overall shape of the tubular body while its posture is correctly regulated.

In addition, when the tubular body has a surface coating, it is possible to alleviate the impact applied to the DrP parts, and furthermore, it is possible to suppress the generation of static electricity and prevent mechanical and electrical failure of the DIP parts during transportation. can.

Example Examples will be described below with reference to the drawings.

The conduit for conveying the DIP parts consists of a tubular body 0 formed by tightly winding a wire rod 11 made of a spring material into a deformed coil shape (FIG. 1).

The tubular body 10 is a continuous body in which a large number of unit turns 12, 12, . ing. Therefore, the cross-sectional shape of the tubular body 10 is the same over its entire length, and is determined by the outer peripheral shape of each unit turn 12.

The outer peripheral shape of each unit turn 12 is formed based on the shape of the DIP component D. The DIP part D consists of a main body Da and a large number of pins Db SDb...
・It is of the type in which each pin Db is bent toward the bottom of the main body Da.

Each unit turn 12 is connected to pins Db, Db and Db of DIP component D.
..., and a central body passage part 12a that houses the main body Da (Fig. 2), and as a whole surrounds the DIP part D from the outside. It is shaped like an outer periphery that allows for D.I.
The P part D can freely pass through each unit turn 12, but each unit turn 12 must restrict its running attitude to a constant so that the DIP part D does not perform operations such as reversing. It is large enough to allow

Such a tubular body 10 is bendable due to the elasticity of the wire rod 11, and therefore has an input end IN and an output end OT.
The position can be changed freely.

The bending of the tubular body 10 is achieved by the accumulation of slight relative positional deviations of the unit turns 12 between a large number of unit turns 12, 12 formed adjacent to each other. Even in the case of large bending, the amount of deformation of each unit turn 12 can be practically ignored. That is, the tubular body 10 is bent while maintaining substantially the same cross-sectional shape, so that the DIP input from the input end IN is bent.
The part D can smoothly move within the tubular body 10 without becoming clogged on the way, and can be transported to the delivery end OT. However, it goes without saying that a predetermined height difference is required between the input end IN and the output end OT.

According to this tubular body 10, many types of DIP parts D, D.
When sequentially selecting and mounting on a printed circuit board,
A large number of stock cases provided for each type of DIP parts D, D, etc. are mounted on a turntable, and a large-scale mechanical device for rotating the turntable can be omitted. That is, since the tubular body 10 can bend freely and can pass through the DIP parts D, D, etc. without any trouble in the bent state, instead of moving the stock case, the input end IN of the tubular body 10 can be moved. All you have to do is move it to each stock case, and the moving device at this time is faster than a rotating turntable with a stock case mounted on it.
Something extremely simple will suffice.

The cross-sectional shape of the tubular body 10 of other embodiments can be arbitrarily deformed to adapt to the shapes of various DIP parts D.
Fig. 4). Even in this case, each unit turn 12
By forming pin passing portions 12b, 12b at both ends and forming a main body passing portion 12a in the center,
It is assumed that the running posture of the DIP component D is restricted and regulated within the range in which the DIP component D can freely pass through. By adapting the outer peripheral shape of each unit turn 12 to the DIP component D, it is possible to prevent problems such as the DIP component D being reversed within the tubular body 10.

A surface coating made of conductive resin can be formed on the surface of the tubular body 10. The surface coating at this time may be formed on the surface of the wire 11 before it is shaped into the tubular body 10, or may be formed on the surface of the wire rod 11 after it is shaped into the tubular body 10.

As the conductive resin, it is possible to use any base resin mixed with a conductive material such as metal powder or carbon powder. Further, as the base resin, it is preferable to select one having excellent flexibility and lubricity. When transporting the DIP component D, direct contact between the wire rod 11 and the pins Db SDb... can be avoided, so the pins Db SDb
There is no risk of excessive mechanical shock being applied to the DIP component D, and the generation of harmful static electricity can be prevented. A situation in which internal elements are destroyed can be prevented. Furthermore, if a base resin with excellent lubricity is used, the running resistance to the DIP component can be reduced, so that the DIP component D can pass more smoothly.

Effects of the Invention As explained above, according to the present invention, a wire rod made of a spring material is tightly wound to form a tubular body having a cross section consisting of pin passing portions on both sides and a main body passing portion in the center. By allowing the tubular body to bend while maintaining its cross-sectional shape, as long as there is a predetermined height difference between the input end and the output end, the tubular body can smoothly transport DIP parts input from the former to the latter. Therefore, it has the excellent effect that it can be conveniently used for conveying DIP parts between any two points.

[Brief explanation of the drawing]

1 and 2 show an embodiment, with FIG. 1 being an explanatory view of the overall structure or perspective view, and FIG. 2 being an explanatory view of the cross-sectional shape of the tubular body. 3 and 4 are views corresponding to FIG. 2 showing different embodiments, respectively. D...DIP part 10...Tubular body 11...Wire rod 12a...Body passage part 12b...Pin passage part

Claims (1)

[Claims] 1) A tubular body is formed by tightly winding a wire made of a spring material, and the tubular body is composed of pin passing portions on both sides that regulate the running posture of the DIP component and a main body passing portion in the center. It has a cross section of
A conduit for transporting DIP parts, characterized by being bendable without cross-sectional deformation. 2) The conduit for transporting DIP parts according to claim 1, wherein the tubular body has a surface coating of conductive resin.