JPH0741341B2 - Electric wire measuring and cutting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to, for example, automobiles and OA.
The present invention relates to an electric wire measuring and cutting device that measures and cuts an electric wire used for wiring equipment and home electric appliances to a predetermined length.

[0002]

2. Description of the Related Art An electric wire measuring and cutting device for measuring and cutting an electric wire of this kind to a predetermined length, which has already been proposed, is constructed as shown in FIGS.

That is, in FIGS. 5 to 8, an auxiliary frame 2 is provided at one end 1a of the machine frame 1 with a slight inclination, and the auxiliary frame 2 has a pair of electric wire supply rollers. 3 is axially mounted so as to supply a rod electric wire. In addition, on the auxiliary frame body 2 beside both the electric wire supply rollers 3, there is a well-known horizontal curving device 4 by a plurality of staggered and vertically mounted rollers and a plurality of staggered and horizontally mounted rollers. The vertical twist removing devices 5 by the rollers are arranged in order so as to remove the winding twist of the rod electric wire W, and the cutting device 6 has a pair of cutters (not shown) at the other end 1b of the machine frame 1. )
Is provided so as to cut the electric wire W measured by. Further, as shown in FIG. 6, a feed roller device 7 is provided on the machine frame 1 beside the vertical habit removing device 5 so as not to cause slack of the electric wire W. Is a grooved roller 8 mounted on the machine frame 1
The electric wire W is sandwiched between pressure contact rollers (holding rollers) 9 and transferred. The pressure contact roller 9 has one end of a swinging lever 10 pivotally mounted on the machine frame 1 and a coil spring by an adjusting screw rod 11. It is mounted so that it can be adjusted against the elasticity of twelve. Furthermore, as shown in FIG. 7, a servo motor 13 is provided in the machine frame 1 near the feed roller device 7.
The measuring roller device 13 provided with a is provided so that the electric wire W does not slip.

That is, as shown in FIG. 7, the knurl 1 is attached to the servo motor 13a of the measuring roller device 13.
A grooved measuring roller 14 having 4a is axially mounted,
A pressure contact roller (pressing roller) 1 is attached to the measuring roller 14.
5 is configured to carry out measurement transfer across the electric wire W. This pressure contact roller 15 prevents one end portion of a swinging lever 16 pivotally attached to the machine frame 1 from an elastic force of a coil spring 17a by an adjusting screw rod 17. It is mounted so that it can be adjusted. In addition, in the machine frame 1 near the measuring roller device 13, the electric wire pool frame 1
8 is provided so as to form a reservoir chamber (wire pool) 19 for the electric wires W, and an upper portion of the electric wire reservoir frame 18 is
A pair of front and rear electric wire guide portions 18a and 18b are attached.

On the other hand, in the machine frame 1 near the cutting device 6, there is installed a wire drawing device 20 having a built-in brake device and a one-way clutch (neither shown).
This wire drawing device 20 is configured as shown in FIG.

That is, the output shaft 21a of the drive motor 21.
The drive pulley 22 and the pull-out roller 23 are vertically mounted through the support rod 24a via the above-mentioned boulek device or one-way clutch, and the driven shaft 25 is attached to the support rod 24b beside the support rod 24a. A driven pulley 26 and a drawing roller 27 are mounted above and below the driven shaft 25. Further, the pull-out roller 23
The pull-out roller 27 is provided in close proximity so that the electric wire W is pinched and transferred. The drive belt 22 and the driven pulley 26 are wound around the transmission belts 28a and 28b.

An electric wire gripping device 29 having a plurality of electric wire gripping parts (clamps) 29a such as an index table is rotatably provided near the cutting device 6.

Therefore, the above-mentioned electric wire measuring / cutting device measures the electric wire W to a predetermined length in advance by the measurement control circuit (not shown) of the servomotor 13a as a drive mechanism of the measuring roller device 13 and stops the operation. Enter to set.

Next, the rod electric wire is fed to the both electric wire supply rollers 3, the horizontal bending device 4 and the vertical bending device 5, the feeding roller device 7, the measuring roller device 13, the collecting chamber 19, the wire drawing device 20 and the cutting device 6. When the operation is started after passing through to the electric wire supply roller 3, the feed roller device 7,
The measuring roller device 13 is driven, and the measuring roller device 13 is driven.
Measures and transfers the electric wire W, stores the electric wire W measured to a predetermined length in the accumulating chamber 19, and stops the electric wire W at the same time. At the same time, the electric wire withdrawing device 20 operates to collect the electric wire W accumulated in the accumulating chamber 19. At the same time as the pull-out roller 23 and the pull-out roller 27 are stopped via the brooming device and the one-way clutch after feeding and transferring until the slack is eliminated, at the same time, the cutting device 6 which operates in conjunction with this operation activates the electric wire W in a predetermined manner. It is designed to be cut into lengths.

As shown by the chain line in FIG. 5, the cut electric wire W is the electric wire gripping portion 2 of the electric wire gripping device 29.
After being gripped by 9a, a strip is generated at the end of the electric wire W by the next terminal crimping device (not shown), and then the terminal is crimped thereto.

[0011]

However, in the above-described electric wire measuring and cutting device, the electric wire drawing device 20 is driven to feed out the electric wire W stored in the accumulating chamber 19 and feed it out until there is no slack, and after that, the electric wire W is transferred. Due to the stoppage, each of the drawing rollers 23 of the electric wire drawing device 20
And 27 remain rotating, a tensile force is generated on the electric wire W between the measuring roller device 13 and the electric wire drawing device 20, and due to this, the electric wire W sandwiched between the drawing rollers 23 and 27 is generated. Not only does the outer cover of the wire W be rubbed and damaged due to slippage between the vertical roller and the vertical roller removing device 5 when the measuring roller device 13 suddenly stops, as shown by the chain line in FIG. The electric wire W may be slackened between the electric wire W and the feed roller device 7, and the electric wire W may come off from the grooved roller 8 of the feed roller device 7. Since the winding length of the grooved measuring roller 14 of the roller device 13 is measured, when the outer diameter of the electric wire W changes, the radius of curvature (wrapping length) to the center (core wire) of the electric wire W changes. , The electric wire W was set each time Together are forced to be corrected for is, there is a problem that labor saving due to mass production of high-mix low-volume difficult.

The present invention has been made in view of the above-mentioned circumstances, and is intended to improve the quality by eliminating the slippage of the electric wire W so as not to damage the jacket of the electric wire. By measuring the length of the wire with high accuracy by eliminating the pulling force, and even if the outer diameter of the wire changes, there is no need to compensate for the set length of the wire each time. It is an object of the present invention to provide an electric wire measuring and cutting device designed to save labor.

[0013]

According to the present invention, a pair of peculiarity removing devices are arranged in parallel at one end of a machine frame, and a cutting device is provided at the other end of the machine frame so that one of the peculiarity removing devices is provided beside it. A feed roller device and a measuring roller device are provided in the machine frame of, and a servomotor is connected to and connected to the measuring control circuit in the measuring roller device, and a pair of guide rods are erected in the vicinity of the measuring roller device. An upper limit detection sensor and a lower limit detection sensor are attached to the upper and lower parts of the guide rod so as to be connected to the measurement control circuit, and an electric wire measuring device equipped with a servo motor is provided near the cutting device.

[0014]

According to the present invention, the measurement control circuit connected to the servo motor of the measuring roller device is input in advance so as to measure the electric wire to a predetermined length and set so that the electric wire is stopped. By starting the operation by passing through the supply roller, the pair of habit removing device, the feeding roller device, the measuring roller device, the upper limit detection sensor and the lower limit detection sensor of the guide rod, the electric wire measuring device equipped with the servo motor, and the cutting device. The electric wire supply roller, the feed roller device, and the measuring roller device are operated to measure and transfer the electric wire while detecting the electric wire with the upper limit detection sensor and the lower limit detection sensor, and measure the electric wire to a predetermined length. While further measuring with an electric wire measuring device equipped with, the electric wire W is transferred to the cutting device, and the electric wire W is cut into a predetermined length by the cutting device so as not to damage the jacket of the electric wire. The length of the wire is measured with high accuracy without applying tensile force to the wire from the measuring roller device, and even if the outer diameter of the wire changes, the set length of the wire is corrected each time. Without doing so, it aims to save labor by mass-producing a large quantity of small quantities.

[0015]

The present invention will now be described with reference to the illustrated embodiments.

The present invention will be described by giving the same reference numerals to the same constituent members as those of the above-described specific example.

1 to 4, reference numeral 1 is a machine frame of an electric wire processing machine, and an auxiliary frame body 2 is provided at one end 1a of the machine frame 1 with a slight inclination. A pair of electric wire supply rollers 3 are axially mounted on the auxiliary frame body 2 so as to supply rod electric wires. Further, on the auxiliary frame body 2 beside the both electric wire supply rollers 3, there are well-known horizontal habit removing device 4 by a plurality of staggered and vertically mounted rollers and a plurality of staggered and horizontally mounted rollers. The vertical curb removing devices 5 by means of the rollers are arranged in order so as to remove the curl of the electric wire W. At the other end 1b of the machine frame 1, the cutting device 6 cuts the electric wire W with a pair of cutters. It is provided to do. Further, as shown in FIG. 1, a feed roller device 7 is provided in the machine frame 1 beside the vertical curving device 5 so as not to cause the slack of the electric wire W.

That is, the feed roller device 7 is the machine frame 1 described above.
The wire W is sandwiched by a pressure contact roller (holding roller) 9 and is transferred to a grooved roller 8 axially mounted on the swing roller rod 1 pivotally mounted on the machine frame 1.
It is mounted such that 0 is adjusted by the adjusting screw rod 11 against the elastic force of the coil spring 12. Furthermore, as shown in FIG. 2, a measuring roller device 13 having a servo motor 13a is provided on the machine frame 1 beside the feed roller device 7 so as to prevent the electric wire W from slipping. .

That is, the servo motor 13a of the measuring roller device 13 is axially mounted with a grooved measuring roller 14 having a knurl 14a, and a pressure contact roller (pressing roller) 15 is connected to the electric wire W. The pressure roller 15 is configured so as to carry out measurement transfer across the pressure roller 15.
Is pivotally mounted on the machine frame 1 so that the swinging rod 16 pivotally mounted on the machine frame 1 is adjusted by an adjusting screw rod 17 against the elastic force of the coil spring 17a (see FIG. 1). Further, as shown in FIG. 2, a measurement control circuit 30 is connected to the servo motor 13a, and the measurement control circuit 30 has each electric wire W having a different outer diameter.
Is set to a predetermined length and stored, and an upper limit detection sensor 33a and a lower limit detection sensor 33b, which will be described later, detect excess or deficiency of the feed wire W, and this is transmitted to the measurement control circuit 30 to set the predetermined length. It is designed to control measurement. Further, an electric wire pool portion 31 is provided on the machine frame 1 beside the measuring roller device 13 so as to form a slack of the electric wire W. In the electric wire pool portion 31, a pair of guide rods 32 is provided. As shown in FIG. 3, the guide rod 32 is provided upright with upper and lower limits of an upper limit detection sensor 33a and a lower limit detection sensor 33b connected to the measurement control circuit 30.

Particularly, when the electric wire W measured to have a predetermined length becomes thin, the amount of deflection of the electric wire W in the electric wire pool 31 decreases and the electric wire W moves upward. It is detected and transmitted to the measurement control circuit 30, and the rotation of the servomotor 13a of the measurement roller device 13 connected thereto is sped up to compensate for the shortage of the feed amount of the electric wire W, while the predetermined length is exceeded. If the electric wire W to be measured becomes thick, the amount of bending of the electric wire W in the electric wire pool portion 31 increases and the electric wire W moves downward, so that the lower limit detection sensor 33b detects this and sends it to the measurement control circuit 30. The servo motor 13a of the measuring roller device 13 connected to this is slowed down to reduce the feed amount of the electric wire W, whereby the feed amount of the electric wire W measured in a predetermined length is Control automatically Since the, regardless of the magnitude of the outer diameter of the wire W, always feed amount of the wire W which is measured at a predetermined length is kept constant length.

On the other hand, as shown in FIG. 4, an electric wire measuring device 35 having a servo motor 34 is installed in the machine casing 1 near the cutting device 6, and this electric wire measuring device 3
The output shaft 34a of the servo motor 34 of No. 5 has a main gear 36
A measuring roller 37a having a and a knurl is axially mounted through a supporting member (lever) 38a. A driven gear 36b that meshes with the main gear 36a is mounted on a rotary shaft 39, and a measuring roller 37b having a knurl is passed through a support member (lever) 38b on the upper portion of the rotary shaft 39. Electric wire W together with the measuring roller 37a
It is attached so as to sandwich it.

Therefore, the electric wire measuring device 35 drives the servo motor 34 to measure the electric wire W previously measured to a predetermined length with both measuring rollers 37a and 37b to a predetermined length. At the same time as stopping, the electric wire W is cut by the cutter of the cutting device 6,
Compared with the one already proposed, it is possible to measure the length of the electric wire W from the measuring roller device 13 with high accuracy by eliminating the tensile force. In addition, the electric wire measuring device 35
Is connected to the measurement control circuit 30 for length measurement input.

In the vicinity of the cutting device 6, for example, a plurality of electric wire grips 2 such as an index table are provided.
An electric wire gripping device 29 having 9a is rotatably provided.

The operation of the present invention will be described below.

Therefore, the measurement control circuit 30 connected to the servo motor 13a of the measuring roller device 13 and the servo motor 34 of the electric wire measuring device 35 in advance measures the electric wire W to a predetermined length and stops it. To set.

Next, the rod electric wire is fed to the electric wire feeding rollers 3, the pair of habit removing devices 4 and 5, the feeding roller device 7, the measuring roller device 13, the guide rod 32, and the guide rings 40a and 4a.
0b, the electric wire measuring device 35 equipped with the servomotor 34 and the cutting device 6 are pulled through, and then the operation is started, whereby the amount electric wire supply roller 3, the feed roller device 7,
The measuring roller device 13 is driven to measure and transfer the electric wire W and measure it to a predetermined length.

On the other hand, as described above, the measured electric wire W is detected and monitored by the upper limit detection sensor 33a and the lower limit detection sensor 33b of the guide rod 32, while the electric wire W is provided with the electric wire measuring device 35 equipped with the servo motor 34. At the same time, the cutting device 6 is activated to cut the electric wire W into a predetermined length.

The cut electric wire W is gripped by the electric wire gripping portion 29a of the electric wire gripping device 29, and a strip is formed at the end of the electric wire W by the next terminal crimping device (not shown). The terminal is designed to be crimped.

In this way, the present invention improves the quality by not damaging the jacket of the electric wire W, and eliminates the tensile force on the electric wire W from the measuring roller device 13 to accurately measure the length of the electric wire. In addition to the measurement, even if the outer diameter of the electric wire W changes, the set length of the electric wire W is not corrected each time, and labor can be saved by mass-producing a large number of small quantities.

[0030]

As described above, according to the present invention, a pair of habit removing devices are arranged in parallel at one end of the machine frame, and a cutting device is provided at the other end of the machine frame to remove the one habit removing device. A feed roller device and a measuring roller device are provided on the machine frame near the device, and a servomotor is connected to the measuring control device and connected to the measuring roller device, and a pair of guide rods are erected in the vicinity of the measuring roller device. However, since an upper limit detection sensor and a lower limit detection sensor are attached to the upper and lower parts of the guide rod by connecting to the measurement control circuit, and an electric wire measuring device equipped with a servo motor is provided in the vicinity of the cutting device, The quality of the jacket is improved without slip damage, and the measured electric wire always has a slack in the electric wire pool.Therefore, the electric wire is not likely to come off from the feed roller device.
Eliminate the tensile force from the measuring roller device to measure the length of the wire with high accuracy, and even if the outer diameter of the wire changes,
There is an excellent effect such that labor saving can be achieved by mass production of a large number of small quantities without correcting the set length of the electric wire each time.

[Brief description of drawings]

FIG. 1 is a side view of an electric wire measuring and cutting apparatus according to the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the chain line AA of FIG.

FIG. 3 is a diagram showing the positions of both detection sensors incorporated in the electric wire measuring and cutting apparatus of the present invention.

FIG. 4 is an enlarged sectional view taken along the chain line BB of FIG.

FIG. 5 is a side view of an electric wire measuring and cutting device that has already been proposed.

6 is an enlarged cross-sectional view taken along the chain line CC of FIG.

7 is an enlarged cross-sectional view taken along the chain line DD of FIG.

8 is an enlarged sectional view taken along the chain line EE of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame 4, 5 Habit removing device 6 Cutting device 7 Feed roller device 13 Measuring roller device 31 Electric wire reservoir 32 Guide rod 33a Upper limit detection sensor 33b Lower limit detection sensor 34 Servo motor 35 Electric wire measurement device

Claims (1)

[Claims] 1. A pair of habit removing devices arranged in parallel at one end of the machine frame, a cutting device provided at the other end of the machine frame, and the machine frame near the one habit removing device. A feed roller device and a measuring roller device provided, a servomotor connected to the measuring roller device by being connected to a measurement control circuit, and a pair of guide rods standing upright in the vicinity of the measuring roller device,
An upper limit detection sensor and a lower limit detection sensor attached to the upper and lower parts of the guide rod connected to the measurement control circuit, and an electric wire measurement device provided with a servo motor provided in the vicinity of the cutting device. A characteristic electric wire measuring and cutting device.