JPH0314036Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is an improvement of the tape used to hold the lead wires and transport the so-called radial lead type electronic parts in the process of manufacturing them. Regarding.

[Prior art]

Conventionally, paper tape has been used to transport radial lead type electronic components such as ceramic capacitors in the manufacturing process. As shown in FIG. 4, for example, this paper tape 3 has slits 4, 4 arranged in pairs in the width direction and arranged at regular intervals in the longitudinal direction of the tape 3.

A ceramic capacitor is made by sandwiching a disc-shaped dielectric body 1 with electrodes on both sides between the tips of lead wires 2 bent into a U shape, and in this state goes through processes such as soldering and insulation coating. The same part is manufactured by sewing the paper tape 3 in the width direction to slit 4,
By inserting the lead wires 2 into the wires 4, they are maintained in a parallel state at a constant interval. This paper tape 3 is provided with feed holes 5, 5 that match the pitch of the slits 4, 4, and a tape feed roller 6.
Pins 7, 7, . Therefore, the paper tape 3 is fed in the direction in which the tape feed roller 6 rotates while holding the magnetic capacitor.

[Problem to be solved]

Although this paper tape 3 for conveyance has the advantage of being able to hold the lead wire 2 without applying excessive external force due to its unique softness and deformability, it has the following drawbacks. . That is, the paper is
In addition to having the property of being easily deformed,
If it is exposed to high temperatures each time it goes through a soldering process or a paint baking process, it will gradually change in quality and lose its elasticity, making it impossible to hold the lead wire 2 in the slits 4, 4 properly. Further, since the feed holes 5, 5 are also gradually deformed by the pins 7, 7 of the tape feed roller 6, uneven feeding tends to occur.

In contrast to the paper tape 3 that has these drawbacks, the use of materials that are heat resistant and less susceptible to deformation, such as metal tape, has been considered in the past;
In the case of metal tape, it lacks flexibility and deformability, so it is inferior to paper tape in terms of holding the thin lead wire 2 firmly without applying excessive external force to it.

This idea was created as a result of studies in view of the above-mentioned problems. It uses a metal tape such as stainless steel, which is more resistant to heat than paper tape and less susceptible to deformation, and uses a special method to create thin leads. The purpose of this is to be able to firmly hold the wire without applying excessive external force to the wire, thereby realizing reliable and highly accurate feeding of radial lead type electronic components.

[Means and examples for solving the problem]

Hereinafter, the structure of this invention will be explained in detail based on the embodiment shown in FIGS. 1 to 3.

In this invention, a thin metal tape 11 such as a stainless steel tape with a thickness of about 0.2 to 0.5 mm is used, and the holding pieces 12 are erected on this. To explain this point more specifically according to the illustrated embodiment,
The holding pieces 12, 12 are provided by, for example, punching out a part of the metal tape 11 and pulling it up, and when the holding pieces 12 are viewed from the plane side of the metal tape 11, As shown in FIG. 1, it has a rectangular shape that is long in the width direction of the tape 11, and is located approximately at the center in the width direction. When viewed from the side of the metal tape 11, it has an inverted L-shape as shown in FIG. 3 or an inverted J-shape. Note that the illustrated holding pieces 12, 12 are attached to the lead wire 1 of the electronic component 13.
The retracting side and drawer side ends of 4 are slightly curved upward in FIGS. 2 and 3, and both ends are slightly spread out.

These holding pieces 12, 12 form a set of two and face each other in parallel at a distance corresponding to the interval between the lead wires 14 of the electronic component 13, and each set of holding pieces 12, 12 are arranged at regular intervals in the longitudinal direction.

The metal tape 11 is provided with pillow-like holding protrusions 15, 15 on the lead wire lead-in side or pull-out side of the holding pieces 12, 12. In the illustrated embodiment, the holding protrusions 15, 15 are connected to the respective holding pieces 12,
12 are provided only on the lead wire lead-in side and the lead wire pull-out side, respectively.

Further, the metal tape 11 has a holding piece 12,
Spread holes 1 at regular intervals corresponding to the pitch of 12.
6, 16... are drilled, and the feed hole 1 shown in the figure
6, 16... are bored between each set of holding pieces 12, 12.

[Effect]

When using the conveying tape of this invention, the lead wires 14 of the electronic components 13 are inserted into the holding pieces 12, 12, as shown in the drawing, and the electronic components 13 are held in parallel in the longitudinal direction of the metal tape 11. In the normal process, first the lead wire 1 is in a straight state.
Holding piece 1 while folding 4 into a U shape.
After being drawn between 2 and 12, the lead wire 14 is cut to an appropriate length, and then this end is bent inward in a dogleg shape, and a component body 17 such as a dielectric element is sandwiched between them.

Even if there is some margin between the holding pieces 12, 12 and the lead wire 14 in this state, the holding protrusions 15, 15
In order to press the lead wire 14 against the holding pieces 12, 12 while bending it slightly upward in FIGS. It stays strong. In particular, in the illustrated embodiment, the leading end of the lead wire 14 on the side that clamps the component body 13 from below in FIG. It is pressed and supported from below at 15, from above at the pull-in side of the holding piece 12, and from below at the pull-out side of the holding piece 12, respectively. On the other hand, on the side that holds the component body 13 from above, the holding piece 12
It is pressed and supported from below on the drawing side of the holding piece 12, from above on the drawing side of the holding piece 12, and from below on the holding protrusion 15, respectively. That is, either side of the lead wire 14 is reliably supported at at least three points. Further, the holding pieces 12, 12 are attached to the metal tape 1
Since the lead wires 14 are opposed to each other parallel to the width direction of the metal tape 11, it is difficult for the lead wires 14 to shift in a direction in which the lead wires 14 are inclined with respect to the metal tape 11.

In this way, the metal tape 11 is fed in the longitudinal direction while holding the electronic component 13, and the electronic component 13 is conveyed.In this case, the pins of a feed roller or the like are inserted into the feed holes 16, 16... is given by

[Effect of idea]

As explained above, according to this invention, the metal tape 11 has superior heat resistance and strength compared to paper tape.
While using the electronic component 13, the electronic component 13 can be firmly held in a predetermined position by its own elasticity without applying excessive external force to the lead wire 14. Therefore, electronic components can be transported firmly and accurately over a long period of time, and the intended purpose can be achieved.

[Brief explanation of drawings]

FIG. 1 is a plan view of a conveying tape showing an embodiment of the invention, showing the state in which electronic components are mounted, FIG. 2 is a perspective view of the tape, FIG. 3 is a side view of the tape, and FIG. The figure is a perspective view showing a conventional conveying tape and an example of its use. 11... Metal tape, 12... Holding piece, 13...
...Electronic component, 14... Lead wire, 15... Holding protrusion, 16... Feed hole, 17... Part body.

Claims (1)

[Scope of utility model registration request] In a tape for radial electronic component transportation, in which U-shaped lead wires with a component main body sandwiched at their tips are attached and transported in parallel at regular intervals, the distance between the lead wires is set on a flexible thin metal tape. Holding pieces are placed parallel to each other in the width direction of the tape at distances corresponding to A radial lead type tape for transporting electronic components characterized by perforating perforations at regular intervals.