JPS634380Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a positioning and cutting mechanism for interconnecting connection wires (hereinafter referred to as terminal-equipped wires) that are connected to each other at crimp terminal heads and made continuous.

Conventionally, this type of wire is wound onto a drum at the same time as it is manufactured, unwound before wiring work, and the center part of the terminal is cut with a tool before wiring work, which is a very labor-intensive and time-consuming process. It was hot.

This idea was made in order to eliminate the drawbacks of the conventional devices as described above, and provides a positioning and cutting device that detects the terminal parts of continuously processed electric wires with terminals and cuts them one by one at a predetermined position. It is something to do.
In Figure 1, 1 is an electric wire with a terminal, 2 is a terminal,
These are electric wires 1a, 1b and crimp terminals 2a,
2b. X-X is the cutting position of terminal 2. Fig. 2 shows an embodiment of this invention, in which numeral 3 is a feed roller that feeds the electric wire after cutting the terminal, 4 is a motor for driving the feed roller, and 5 is a roller that faces the feed roller 3 and is used to feed the electric wire 1a. A pressing roller that generates a frictional force between the pressing and feeding roller 3 and the electric wire 1a; 6 is a cylinder that presses the pressing roller 5 against the electric wire 1a and pulls it away; 7a, 7b;
is a cutting blade that separates terminal 2 at the center X-X position, 8
Reference numerals a and 8b indicate positioning plates for positioning the terminals, which are installed at a predetermined distance from the cutting blades 7a and 7b.
9 is a feed roller that pulls the electric wire 1b, 10 is a drive motor for the feed roller 9, and 11 is a measuring device that faces the feed roller 9 and presses the electric wire 1b to generate a frictional force between the feed roller 9 and the electric wire 1b. It is a long roller, and in order to prevent slipping with the electric wire 1b, the roller surface is knurled or grooved to increase the coefficient of friction. 12 is length measuring roller 1
A cylinder that presses or pulls away the electric wire 1b, 1
3 is a pulse generator connected to the length measuring roller 11. In FIG. 2, the terminal-equipped electric wire 1 is fed in the direction of the arrow by a feed roller 9 and a length measuring roller 11. At this time, the positioning plates 8a and 8b are closed, but holes 8e larger than the electric wire 1 are provided in the opening and closing end surfaces 8c and 8d of the positioning plate 8, and as shown in FIGS. 3 and 4, Tapers 15a and 15b are provided on the end surface of the hole 8e so as to contact the shoulders 14a and 14b of the terminal 2b. As shown in FIG.
Opening and closing operations are performed by a and 17b. These pinions 17a, 17b are driven by a cylinder 20 connected to the rack 19. In Figure 4, terminal 2b
When the shoulder portions 14a, 14b of the positioning plates 8a, 8b are caught on the tapered portions 15a, 15b of the positioning plates 8a, 8b (the state shown in FIG. 5), the length measuring roller 11 in FIG. 2 stops,
The pulse generator 13 connected to this stops generating pulses, and a signal indicating the position of the terminal 2b is output. Motor 1 is activated by the signal that positions terminal 2b.
Stop 0. Through this series of operations, the cutting position XX of the terminal 2 in FIG.
It is positioned at part 7b. At the same time, the cutting blades 7a, 7
b operates to disconnect terminals 2a and 2b. Although the mechanism of the cutting section is omitted, it is a mechanism similar to the positioning mechanism shown in FIG. 7. After cutting, positioning plates 8a, 8b
is divided at dividing portions 8c and 8d as shown in FIG. 6, and similarly opens cutting blades 7a and 7b. At the same time, the cylinder 12 that was pressing the length measuring roller 11 against the feed roller 9 side is operated, the length measuring roller 11 is separated, and the cut terminal 2b and electric wire 1b are discharged.
The remaining electric wire 1a is sandwiched between the feed roller 3 and the pressing roller 5 pressed by the cylinder 6, and is sent in the direction of the arrow by the rotation of the motor 4. The motor 4 rotates until the electric wire 1a passes through the feed roller 9 section and then stops. This feed amount is set by a preset rotation time or pulse number of the motor 4. Length measuring roller 1 is activated by the stop signal of motor 4.
The cylinder 12 connected to the cylinder 1 presses the length measuring roller 11 against the feed roller 9 side, pinching the electric wire 1a, and at the same time closes the positioning plates 8a and 8b.The motor 10 rotates to rotate the feed roller 9 and move the electric wire 1a. Send in the direction of the arrow. The feed roller 3 and the pressing roller 5 continue to sandwich the electric wire 1a and apply appropriate tension to the electric wire 1a. Note that a motor 18 connected to a pinion 17a may be used to drive the positioning plates 8a and 8b in FIG. 7 to open and close.

As described above, according to the terminal positioning device of this invention, even if connecting wires of different lengths are connected by terminals and sent in succession, the terminals can be easily and reliably positioned at a constant position. Moreover, the mechanism is simple and an inexpensive device can be provided.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an electric wire with a terminal, Fig. 2 is a front view schematically showing an embodiment of this invention, and Fig. 3 is a perspective view showing a positioning plate used in the one shown in Fig. 2. , FIGS. 4 and 5 are cross-sectional views showing the relationship between the positioning plate and the electric wires, FIG. 6 is a cross-sectional view showing the positioning plate when it is opened, and FIG. 7 is a side view showing the positioning plate opening/closing mechanism. In the diagram, 1, 1a, 1b are electric wires, 2, 2a, 2b
is a terminal, 3, 5 and 9, 11 are rollers, 4, 10
is a motor, 6, 12 are cylinders, 7a, 7b are cutting blades, 8, 8a, 8b are positioning plates, 8c, 8d
8e is a hole, and 13 is a pulse generator.

Claims (1)

[Scope of utility model registration request] two pairs of rollers for feeding continuous electric wires with interconnected crimp terminal heads, a positioning plate provided between these two pairs of rollers so as to be openable and closable, and having a hole in the opening/closing end surface through which the electric wires are inserted; A cutting blade is provided at a predetermined position from this positioning plate, and a cutting blade is installed on one of the above rollers to detect when the terminal portion of the electric wire hits the positioning plate insertion hole, and then the cutting blade and the positioning plate are A positioning and cutting device for electric wires with a terminal, characterized in that it is equipped with a detector that outputs a control signal.