JPH11195898A - Molding device for jumper wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jumper-wire molding device, which does not require a dedicated cam mechanism for exhausting a jumper wire and can mold the jumper wire having the high dimensional accuracy. SOLUTION: A device cuts a continued wire 3 into the specified length, binds the both end parts of a partial cut wire 3A at the right angle and molds the U-shaped jumper wire. This device is constituted so as to have the following parts: a hollow guide tube 11 wherein the continued wire 3 is penetrated and made to protrude forward by the length of the partial wire 3A; a blade 12 which cuts the continued wire 3 at the tip surface of this guide tube 11 and separates the partial wire 3A; a retreat preventing mechanism 13 which holds the remaining part of the continued wire 3 at the back side of the guide tube 11; holding mechanism 14A and 14B which hold the above described partial wire 3A at the front side of the guide tube 11; a pair of punches 15A and 15B which bend both end parts of the partial wire 3A held with the holding mechanisms 14A and 14B at the right angle and mold the above described U shaped jumper wire; and a pair of exhausting pads 16A and 16B, which exhaust the jumper wire in interlocking with the reciprocating motion of a pair of the punches.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jumper wire forming apparatus for sequentially forming a U-shaped jumper wire by cutting a continuous wire.

[0002]

2. Description of the Related Art A continuous wire is cut into a predetermined length,
As shown in FIG. 4, a device for forming a U-shaped jumper wire by bending both ends of a cut partial wire at a right angle uses a motor 1 as a power source, and uses a cam mechanism or the like to rotate the motor 1. To the driving mechanism 2 including the driving mechanism 2
Feeder 4 for feeding continuous wire 3 under the control of
And a forming section 5 for cutting the fed wire and further bending the cut partial wire into a U-shape.

The dimensional accuracy of the U-shaped jumper wire formed by the forming portion 5 depends on the control accuracy of the feed length of the wire 4. Asymmetric variations occur. In the conventional jumper wire forming apparatus, in order to prevent the continuous wire 3 remaining after the partial wire is cut off from the forming portion 5, the wire 3 is allowed to advance in the direction of the arrow A, but is allowed to move in the reverse direction. Adopts a detent mechanism that uses claws to prevent retraction
For example, it was insufficient for strict control of dimensions of 1 mm or less.

[0004] The jumper wire bent in a U-shape is
Since it has a tendency to adhere to a bending mold, if the jumper wire is not ejected without fail after molding, inconveniences such as a jam with the next jumper wire may occur. For this reason, conventionally, a jumper wire after bending is discharged by a cam mechanism dedicated to discharge. However, such a cam mechanism complicates the configuration of the drive mechanism 2.

[0005]

It is desired that the above-mentioned jumper wire forming apparatus has a structure as simple as possible and can form a jumper wire having high dimensional accuracy.
Therefore, an object of the present invention is to provide a jumper wire forming apparatus which does not require a dedicated cam mechanism for discharging a jumper wire and can form a jumper wire having high dimensional accuracy.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to cut a continuous wire into a predetermined length and form both ends of the cut partial wire at right angles to form a U-shaped jumper wire. A hollow guide tube that penetrates the continuous wire and protrudes forward by the length of the partial wire, and cuts the continuous wire at a distal end surface of the guide tube to form the partial wire. A separating blade, a retraction preventing mechanism for holding the remaining of the continuous wire behind the guide tube, a holding mechanism for holding the partial wire in front of the guide tube, and the portion held by the holding mechanism A jumper comprising a pair of punches for bending both ends of a wire at right angles to form the U-shaped jumper line, and a pair of discharge pads for discharging the jumper line in conjunction with the reciprocating movement of the pair of punches. It can be achieved with shaping device line.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments shown in the drawings. 1 to 3 are main part configuration diagrams of a jumper wire forming apparatus showing one embodiment of the present invention in different operation states. In the figure, reference numeral 11 denotes a hollow guide tube which penetrates the continuous wire 3 and protrudes forward by a length necessary for forming a jumper wire.
The continuous wire 3 is cut at the distal end surface of
A blade 13 for separating A is a retraction preventing mechanism that clamps the rest of the continuous wire 3 behind the guide tube 11.

Reference numerals 14A and 14B denote holding mechanisms for holding the partial wire 3A in front of the guide tube 11, and 15A and 15B denote both ends of the partial wire 3A held by the holding mechanisms 14A and 14B by bending both ends thereof at right angles. A pair of punches 16A and 16B for forming the jumper wire 3B of the mold are moved in conjunction with the reciprocating motion of the pair of punches 15A and 15B.
A pair of discharge pads for discharging B.

The retraction preventing mechanism 13 is composed of a fixed portion 13A and a movable portion 13B which moves up and down, and firmly clamps the wire 3 between the two to prevent a slight retreat. The blade 12 for cutting the partial wire 3A is a part of the punch 15B. The holding mechanisms 14A and 14B move in the vertical direction, and sandwich the partial wire 3A between the dies 17A and 17B at fixed positions.

Behind the retraction preventing mechanism 13 is a conventional claw-shaped detent mechanism 18. The detent mechanism 18 includes a fixing member 18A and a rotating member 18B facing the fixing member 18A. The rotating member 18B rotates clockwise around the shaft 18C by the force of a spring (not shown), and connects the wire 3 to the fixing member 18A. Between the two.

Reference numerals 19A and 19B denote killer pins for moving the ejection pads 16A and 16B up and down in conjunction with the punches 15A and 15B. By providing the killer pins 19A and 19B, the jumper wire 3B can be discharged without requiring a dedicated discharge cam mechanism.

The operation will be described below with reference to FIGS. In the state shown in FIG. 1, the retraction preventing mechanism 13 is opened, and the holding mechanisms 14A, 14B and the punch 15
Since A and 15B are raised, the continuous wire 3 passes through the guide tube 11 and the length necessary for forming the jumper wire projects forward of the guide tube 11.

FIG. 2 shows a state in which a jumper line 3B is formed from the state shown in FIG. That is, while the retraction preventing mechanism 13 is closed from the state shown in FIG. 1 to reliably prevent the wire 3 from retreating, first, the holding mechanisms 14A and 14B are lowered so that the portion that becomes the jumper wire 3B is moved between the dies 17A and 17B. , And in this state, lower the punches 15A and 15B further,
The wire 3 is cut at the tip end surface of the guide tube 11 by the blade 12 of the punch 15B. Further, the punches 15A and 15B are lowered, and both ends of the cut partial wire are attached to the dies 17A and 17B.
B is bent at a right angle to form a jumper wire 3B.

FIG. 3 shows a state in which the jumper wire 3B formed in the state shown in FIG. 2 is raised by the killer pins 19A and 19B interlocking with the punches 15A and 15B.
6B. This drawing also shows that the leading end of the continuous wire 3 is guided by the retraction preventing mechanism 13 to the guide cylinder 1.
1 shows a state in which the jumper wire is held so as to be aligned with the tip of No. 1 so as not to cause an error in the dimension of the next jumper wire to be formed. The movable member 13B of the retraction prevention mechanism 13 is driven by a cam mechanism, and the area of opposition between the fixed member 13A and the movable member 13B is large. However, the holding force of the wire 3 by the retraction prevention mechanism 13 is smaller than that of the conventional detent mechanism 18. Much stronger.

[0015]

As described above, according to the present invention, it is possible to provide a jumper wire forming apparatus capable of forming a jumper wire having high dimensional accuracy without requiring a dedicated cam mechanism for discharging the jumper wire.

[Brief description of the drawings]

FIG. 1 is a main part configuration diagram of a jumper wire forming apparatus according to an embodiment of the present invention.

FIG. 2 is a main part configuration diagram of the jumper wire forming apparatus of FIG. 1 in different operation states.

FIG. 3 is a main part configuration diagram of still another operation state of the jumper wire forming apparatus of FIG. 1;

FIG. 4 is a schematic configuration diagram of the entire jumper wire processing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motor 2 Drive mechanism part 3 Continuous wire 3A Partial wire 3B Jumper wire 4 Wire feed part 5 Jumper wire forming part 11 Guide cylinder 12 Blade 13 Retraction prevention mechanism 14 Holding mechanism 15 Punch 16 Discharge pad 17 Die 18 Return stop mechanism 19 Killer pin

Claims (1)

[Claims] 1. A continuous wire is cut to a predetermined length,
An apparatus for forming a U-shaped jumper wire by bending both ends of a cut partial wire at a right angle, wherein a hollow guide that penetrates the continuous wire and projects forward by the length of the partial wire. A tube, a blade that cuts the continuous wire at the distal end surface of the guide tube to separate the partial wire, a retraction preventing mechanism that clamps the rest of the continuous wire behind the guide tube, and the guide tube A pair of punches for bending both ends of the partial wire held by the holding mechanism at right angles to form the U-shaped jumper line; and An apparatus for forming a jumper wire, comprising: a pair of ejection pads for ejecting the jumper wire in conjunction with a reciprocating motion of a punch.