JPH0215465B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] A large number of connector terminals (pins) are connected at a carrier part to form a comb-shaped continuous strip material, and a pair of continuous strip material wound into a roll is rewound to form a comb-shaped continuous strip material. Protrusions (dowels) are provided at predetermined intervals, and by aligning the dowels with the grooves of the horizontal rail, the continuous strip is guided horizontally and longitudinally to the driving part so that the connector pins are in a vertical position. An automatic connector terminal driving machine with a mechanism.

[Industrial application field]

The present invention relates to an automatic connector terminal driving machine used for manufacturing printed boards having connector terminals (pins) such as back wiring boards of racks for housing printed boards in electronic equipment, communication equipment, etc.

[Conventional technology]

With the miniaturization of electronic devices and communication devices, automatic connector terminal driving is used to drive connector terminals (pins) into the pin mounting holes of printed circuit boards such as back wiring boards to quickly manufacture these types of back wiring boards in large quantities. The development of a loading machine is required.

When supplying connector terminal material to such an automatic connector terminal driving machine, a large number of connector pins are connected continuously and integrally in a carrier section to form a long comb-shaped continuous strip. Conventionally, the one wound into a roll has been used. The continuous strip material pulled out from such a roll needs to be transported horizontally and longitudinally to the terminal driving machine with the connector pins in a vertical position.

[Problem to be solved by the invention]

The present invention provides an automatic connector terminal driving machine having a simple guide means for a hook for conveying such a continuous strip of connector terminals in a horizontal and longitudinal direction with the connecting pins in a vertical position.

[Means for solving problems]

In order to solve these problems, the present invention provides a connector terminal comprising a carrier part continuous to one side edge of a metal strip and a large number of comb-shaped connector pins integrally formed with the carrier part. This is an automatic driving machine that unwinds a pair of rolled connector terminals, one from the outside and the other from the inside, so that the carrier parts of each are on top and the contact parts are facing each other so that they are vertically aligned. Before introducing the carrier section into the transport mechanism section in the horizontal and longitudinal direction, projections are formed at predetermined intervals in the longitudinal direction on the opposing inner surfaces of the carrier section in the projection forming section, and the longitudinal direction formed on both vertical surfaces of the transport rail is Fit the protrusions into the grooves in the direction and transport the pair of connector terminals to the connector terminal driving head section so that the two connector terminals are suspended at a distance that does not allow contact between the connector pins and the carrier section. An automatic connector terminal driving machine is provided, which is characterized in that it separates the connector terminals and drives the connector pins into the printed board.

[Effect]

As the continuous strip of connector pins is unwound from the pair of rolls, the protrusions provided on the carrier that connect the connector pins in a comb-like manner are engaged with the grooves provided on the transport rail and held vertically. It is transported to the pin driving section.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 3 shows an automatic connector terminal driving machine, in which A is a connector terminal supply mechanism having a structure as will be described later. B is the material supply section that sends the connector terminal, which is the work, to the device, C
is the dowel cutting part, and D is the size adjustment mechanism of the connector terminal. E and F are connector terminal driving heads; E is for metric size (pitch between pins is 2.5 mm) and F is for inch size (pitch between pins is 2.54 mm). G
is the main table on which the printed circuit board that becomes the back wiring board is mounted by driving the connector terminal, H is the work feed and scrap cutting section, I is the control device that controls the driving heads E and F, and J is the X-Y table. It is a control device that controls.

FIG. 4 shows a connector terminal as a workpiece wound into a roll. Also, the second
The figure shows a comb-shaped connector terminal. As shown in FIG. 2, the connector terminal is formed by connecting a large number of connector pins 1 continuously and integrally at a carrier portion 2 to form a long comb-shaped continuous metal strip 10. The carrier part 2 is provided with continuous feed holes 3 in the longitudinal direction, and a continuous strip material 1 is provided.
A thin slit 4 is previously provided between each connector pin 1 to facilitate cutting the connector pin 1 into a predetermined number of pins. Such continuous strip material 10
is wound into a roll with a paper tape 12 interposed therebetween as shown in FIG. The paper tape 12 is for protecting the rolled connector terminal, especially the pin contact portion.

FIG. 5 shows the state in which the carrier part of the connector terminal is separated and the individual connector pins 1 are driven into the back wiring board 14.
FIG. 6 shows a part of it in cross section. The back wiring board 14 is provided with a pair of rows of pin insertion holes 15 in advance.
Therefore, the connector pins 1 are driven in a pair of rows, and the noble metal plated contact surfaces 1a of each connector pin 1 are driven in opposite to each other as shown in FIG.

Next, the connector terminal supply mechanism A will be explained with reference to FIGS. 7 and 8. A pair of continuous strips 10a and 10b wound into a roll are wound so that the outer peripheral side is the contact side (plated side). These pair of rolled continuous strips 10a, 10b are connected to a pair of recoilers 20a, 20.
It will be installed on b. The recoilers 20a, 20b have motors 21a, 21b for rotating the rolled continuous strips 10a, 10b in the directions of arrows, respectively.
The other continuous strip material 10b is simultaneously pulled out from the inner periphery. The drawn continuous strip material 10a, 1
0b passes through guides 22a and 22b and feeds roller 2.
3a and 23b in the direction of the arrow. At the same time as the continuous strips 10a, 10b are pulled out, the paper tapes 12a, 12b are also pulled out, and the paper coiler 24
a and 24b, respectively. Guide 22
A mechanism for detecting slack in the continuous strips 10a, 10b is provided in the middle of the strips a, 22b. These slack detection mechanisms are composed of slack detection rods 25a, 25b that are rotatable about fulcrums 26a, 26b, and springs 27a, 27b. Continuous strip material 10
When the slack in a and 10b increases, the slack portion moves inward and the slack detection rods 25a and 25b
is pushed inward against the springs 27a and 27b, thereby detecting that the slack has increased. At this time, the rotation of the motors 21a and 21b is stopped. Alternatively, the rotation speed is controlled to be lowered. Conversely, when the slack of the continuous strips 10a, 10b becomes small, the motor 21c21b is controlled to rotate or its rotational speed is decreased.

The recoiler 20b that pulls out the rolled continuous strip material 10b from the inner periphery is further equipped with at least one slack detection mechanism near the feeding portion on the inner periphery of the roll. This slack detection mechanism includes a strip material receiving arm 29 rotatably attached to the fixed central shaft of the recoiler 20b, and a small roller that rotates to receive the continuous strip material 10b pulled out from the inner periphery is attached to the tip of this arm 29. 30 is attached, while the arm 29
At the other end, this deflection 29 is attached to a roll-shaped continuous strip 10.
Spring 3 biasing in the direction opposite to the rotation direction of b
1 is installed. Therefore, the continuous strip material 10b
is pulled out slightly above the inner circumference of the roller, contacts the small roller 30 at the tip of the arm 29, and guides 22.
b and is sent by the feed roller 23b. In this case, the remaining length of the continuous band material 10b decreases near the inner circumferential feeding portion of the continuous band material 10b, and the arm 29 moves clockwise (in the eighth direction) against the spring 31.
When it rotates to the position shown in the figure), the slack detection sensor
When turned ON, the motor 21b is controlled to rotate or to reduce its rotation speed. Continuous strip material 10b
If the extra length increases, the arm 29 will rotate counterclockwise (Fig. 8) due to the force of the spring 31.
A slack detection sensor (not shown) turns OFF, and the motor 21b is controlled to stop or to reduce its rotational speed.

In FIG. 3, the pair of continuous strips 10a, 10b of the connector terminal entering the material supply section B are vertically oriented longitudinally, facing each other and with each carrier section 2 (FIG. 2) facing upward. conveyed horizontally. In order to facilitate such conveyance, as shown in FIG.
Dowels (protrusions) 5 are provided at predetermined intervals in the longitudinal direction (on the plated contact side surface of the pin 1).
In the illustrated embodiment, dowels 5 are provided above every fifth feed hole 3. Such a dowel 5 can be formed by pressing or the like inside the dowel cut portion C (FIG. 3).

FIG. 1 is a cross-sectional view of the conveying section of a pair of continuous strips 10a and 10b of the connector terminal, which is perpendicular to the conveying direction. The rail member 33 that guides the continuous strips 10a, 10b extends in the longitudinal horizontal direction, and has grooves 34 in the longitudinal horizontal direction on both vertical sides.
a, 34b are provided. Continuous strip material 10a, 10
The dowel 5 on the inner carrier part of b is inserted into these grooves 34a, 3.
4b, continuous strips 10a, 1 between the guide members 35a, 35b and both sides of the rail member 33.
Guide them to hang 0b. Note that the continuous strip material is conveyed by a well-known feeder (not shown).

〔Effect of the invention〕

As described above, according to the present invention, with a simple structure, a continuous strip of a connector terminal is unwound from a pair of rolls to form protrusions (dowels), and these dowels are used to form a pair of connector pins. 1 can be smoothly guided in the horizontal and longitudinal direction while maintaining the vertical position at predetermined intervals, and can be transported to the driving head. Since only the carrier portion 2 comes into contact with the rail 33 during transportation, there is no risk that the plating surface on the contact side of the connector pin 1 will be damaged or worn. In this way, the present invention can smoothly carry out the process from feeding out the strip of the connector terminal to driving it in at high speed.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a conveyance mechanism for the continuous strip material of the connector terminal according to the present invention, Fig. 2 is a plan view of the continuous strip material of the connector terminal, and Fig. 3 shows the whole of the automatic connector terminal driving machine. A schematic perspective view; Fig. 4 is a perspective view showing a continuous strip of connector terminals wound into a roll; Fig. 5 is a perspective view of a back wiring board into which connector terminals (pins) are driven; Fig. 6 7 is a partial sectional view of the back wiring board into which a pair of connector pins are driven, FIG. 7 is a perspective view of the connector terminal supply mechanism, and FIG. 8 is a plan view thereof. 1...pin, 2...carrier part, 5...dowel (protrusion),
10 (10a, 10b)... Continuous strip material, 14... Back wiring board, 15... Pin insertion hole, 20
a, 20b...Recoiler, 29...Strip material receiving arm, 33...Transportation rail, 34a, 34b...Groove.

Claims (1)

[Scope of Claims] 1. An automatic connector terminal driving machine comprising a carrier part continuous to one side edge of a metal strip and a large number of comb-shaped connector pins integrally formed with the carrier part, which is roll-shaped. By unwinding a pair of connector terminals, one from the outside and the other from the inside, the carrier parts of each terminal are placed on top, and the contact parts are placed facing each other in a vertical position in the horizontal and longitudinal direction. Before introduction, protrusions are formed at predetermined intervals in the longitudinal direction on the opposing inner surfaces of the carrier part in the protrusion forming section, and the protrusions are fitted into longitudinal grooves formed on both vertical surfaces of the conveyance rail. A pair of connector terminals is suspended so that the contact parts of both terminals do not come into contact with each other, and transported to the connector terminal driving head section.The driving head separates the connector pins from the carrier section and attaches the connector pins to the printed circuit board. An automatic connector terminal driving machine characterized by being designed to drive.