JP2003251426A - Electric wire cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric wire cutting device which can carry an electric wire and measure the length of the electric wire without changing any electric characteristics. <P>SOLUTION: This electric wire cutting device comprises a length measuring device 8 to measure the length of an electric wire D while applying the pressure not to change the electric characteristics, a carrier 9 to carry the electric wire D by a predetermined distance, a winding device 11 to carry the electric wire D carried by the carrier 9 while winding the electric wire, and a cutting device 10 to cut the electric wire D carried by the winding device 11 to the predetermined length based on the result by the length measuring device 8. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire cutting device for cutting a long electric wire into a desired length.

[0002]

2. Description of the Related Art This type of electric wire cutting device has a structure in which a length measuring device for measuring the length of an electric wire is provided with a driving roller so that the driving mechanism rotates the driving roller to convey and measure the length.

[0003]

For this reason, since the length measuring device has a structure in which the driving roller rotates by the drive mechanism to carry and measure the length, the length is measured while applying a predetermined pressure to the electric wire. There is a problem that the above pressure is applied to the electric wire and the electric characteristic of the electric wire is changed.

Therefore, an object of the present invention is to provide an electric wire cutting device which can carry and measure the length of an electric wire without changing its electrical characteristics.

[0005]

Therefore, the first invention is
A length measuring device that measures the length of an electric wire while applying a pressure that does not change the electrical characteristics, a conveying device that conveys the electric wire for a predetermined distance, and a winding device that winds and conveys the wire rod conveyed by the conveying device. It is characterized by comprising a take-up device and a cutting device for cutting the wire material conveyed by the winding device into a predetermined length based on the length measuring device.

In a second aspect based on the first aspect, the length-measuring device is stretched between a pair of rollers which is placed on an electric wire on a lower belt stretched between the pair of rollers from above. An upper belt and an encoder that is operated by the roller that rotates the lower belt are provided.

According to a third aspect of the present invention, in the first aspect, the length measuring device comprises a pair of rollers configured to urge an electric wire on a lower belt stretched between a pair of rollers from above by being urged by an urging body. An upper belt stretched between the rollers and an encoder operated by the rollers for rotating the lower belt are provided.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is an electric wire cutting device, which is roughly classified into an electric wire supply device 4 arranged below a device main body 3 which is movable by a caster 2, and an excessive tension applied when the electric wire D is unwound. Tension detecting device 5 for detecting the wire, a straightening device 7 for straightening the twist of the electric wire D through the guide roller 6, and a length measuring device for measuring the length of the electric wire while applying a pressure that does not change the electrical characteristics. 8, a carrying device 9 for carrying the electric wire D by a predetermined distance, a winding device 11 for carrying the wire D carried by the carrying device 9 while winding it, and a wire D carried by the winding device 11. It comprises a cutting device 10 which cuts into a predetermined length based on the length measuring device 8.

The electric wire supply device 4 has a drive motor 41 protruding upward from a support plate 32 on the bottom surface 31 of the device body 3.
Has a bearing portion 43 to which the drive shaft 42 of the above is fitted in the lower center, and when the drive motor 41 is driven, it rotates about the vertical shaft on the support plate 32 and is wound on the bottom surface 44 to form a bundle. The electric wire D is placed and the electric wire D is fed out downstream from the feeding portion 45 at the center of the upper surface 47. 4
Reference numeral 6 denotes a plurality of support rods, which are connected to the end portion of the bottom surface 44 and the end portion of the upper surface 47 to form the outer shape of the electric wire supply device 4.

Reference numeral 12 is a guide roller that is a urethane rubber roller that guides the electric wire D that is fed upward from the feeding portion 45 downward, and 13 is a guide that is hung from the middle plate 33 of the apparatus main body 3 and is lowered by the guide roller 12. Guide the electric wire D guided to the horizontal direction.

The tension detecting device 5 is for detecting an excessive tension when the electric wire D is fed out, and a roller 53 is provided at the lower end of a supporting rod 52 which is swingable around a fulcrum 51. If too much tension is applied, the support rod 52 swings clockwise in FIG. 1, so the detection switch 54 operates to detect the excessive tension.

The straightening device 7 is for straightening the twist of the electric wire D through the guide roller 6, and comprises a twist straightening device 71 in the X direction and a twist straightening device 72 in the Y direction.

Next, the length measuring device 8 will be described with reference to FIGS. 2 and 3. A pair of rollers 82, 82 are rotatably provided on a support plate 81 fixed to the apparatus main body 3, and a lower belt 83 is stretched between the pair of rollers 82, 82. A support plate 85 is provided on a mounting plate 84 that is vertically movable by being guided by the support plate 81, and a pair of rollers 86, 86 is rotatably provided on the support plate 85.
An upper belt 87 is stretched between 6 and 86. Therefore, the lower belt 8 stretched between the pair of rollers 82, 82 by its own weight.
An upper belt 87 stretched between the pair of rollers 86 and 86 is placed on the electric wire D on the upper side of the upper portion 3 from above. As a result, the electric wire D on the lower belt 83 is not applied with an unnecessarily high pressure, and a pressure that does not change the electrical characteristics can be applied. Although not shown, the pair of rollers 82, 82
An encoder is provided that operates by rotation of the.

In FIG. 1, reference numeral 14 is a pair of upper and lower guide rollers, and 15 is a holding device provided on a support base 34 fixed to the middle plate 33 of the apparatus main body 3 for holding the electric wire D. is there.

The transfer device 9 includes an air cylinder 91,
When the air cylinder 91 is actuated by the grip portion 93 gripping an end portion of the wire rod D, the rod 92 moves to move the wire rod D at a predetermined distance. It is to be transported.

The cutting device 10 cuts the electric wire D into a predetermined length based on the length measuring device 8. The cutting device 10 is provided on the support base 34, and the two blades are used for cutting. After 101 moves up, it operates and cuts the wire D.

The take-up device 11 comprises the transfer device 9
The wire material D conveyed by is wound up and drawn and conveyed for a predetermined distance. That is, the tip of the wire D conveyed by the conveying device 9 has the flat roller 111 and the eccentric roller 1.
12, the flat roller 111 and the eccentric roller 112 press and hold the wire D by the rotation of the eccentric roller 112, and then the winding disk 113 is rotated by a drive motor (not shown). Since the plurality of pins 114 project from the disk 113 with a predetermined interval, the wire D is wound around these pins 114.

With the above configuration, the operation will be described below. First, the operator manually grasps the tip of the wire D from the feeding portion 45 of the electric wire supply device 4 and takes it out upward,
Then, the guide roller 12, the guide 13, the roller 53 of the tension detecting device 5 and the correction device 7 are pulled out.

Then, as shown in FIG. 3, by raising the mounting plate 84 and the supporting plate 85 along the supporting plate 81, the pair of rollers 86, 86 and the upper belt 87 can be raised. The wire D is guided between the upper belt 87 and the lower belt 83 and led out from the length measuring device 8 to the downstream side. After that, when the operator releases the hand, the pair of rollers 86, 86 and the upper belt 87 descend due to their own weight, and the upper portion of the electric wire D on the lower belt 83 stretched between the pair of rollers 82, 82 rises. The upper belt 87 stretched between the pair of rollers 86 and 86 is placed. The self-weight in this case is a pressure that does not change the electrical characteristics of the wire D.

Further, the electric wire D is led downstream from the pair of upper and lower guide rollers 14 and the sandwiching device 15, and the tip of the electric wire D is slightly led downstream from the cutting device 10. This completes the initial setting of the electric wire D in the main electric wire cutting device 1.

Next, when an operation switch (not shown) is operated, as shown in FIG.
And the cutting device 10 moves up to cut the electric wire D. The cut and dropped electric wire D having an odd length is discarded.

Next, since the gripping portion 93 of the conveying device 9 grips the wire D while being sandwiched by the sandwiching device 15, the sandwiching by the sandwiching device 15 is released after that, and the air cylinder 91 is actuated. The rod 92 moves to convey the wire D by a predetermined distance. Then, as shown in FIG. 5, the leading end of the conveyed wire D is inserted between the flat roller 111 and the eccentric roller 112 of the winding device 11.

After the insertion, as shown in FIG. 6, the flat roller 111 and the eccentric roller 112 press and hold the wire D by the rotation of the eccentric roller 112, so that the grip portion 93 of the conveying device 9 holds the wire D. Release the cylinder 91
Operates and returns to the initial position. Then, after the gripping by the gripping portion 93 is released, the winding disk 113 is rotated by the drive of a drive motor (not shown), and as shown in FIG.
The wire D is wound around the pin 114 protruding from the wire 13.

Therefore, as described above, the winding device 11 is operated by the drive of the drive motor, and as a result, the electric wire D is fed from the electric wire supply device 4. At this time, since the length measuring device 8 can detect a predetermined length by the encoder while applying a pressure to the electric wire D that does not change the electrical characteristics of the wire D, the driving of the drive motor is stopped. .

After this, the two blades 10 of the cutting device 10
After 1 rises, it operates and cuts the wire D. After this cutting, the eccentric roller 112 rotates to release the pressure holding of the wire D by the flat roller 111 and the eccentric roller 112, so that the worker removes the electric wire D from the winding device 11. Similarly, the electric wire D is successively fed out and cut into a predetermined length.

When the winding device 11 is actuated and the electric wire D is paid out, if the electric wire D is excessively tensioned, the support rod 52 swings clockwise around the fulcrum 51, so that the detection switch 54. Is activated to detect excessive tension. By this detection, the drive motor 41 is driven to rotate the electric wire supply device 4, so that excessive tension can be alleviated.

Next, in place of the electric wire supply device 4, FIG.
The electric wire D having the structure as shown in (1) may be wound around the drum 16. At the center of one side of the drum 16,
Bearing portion 1 into which the drive shaft 42 of the drive motor 41 is fitted
7 is formed, the drum 16 is rotatable by the drive of the drive motor 41, and the electric wire D can be paid out.

Further, instead of the length measuring device 8, a length measuring device 8A as shown in FIGS. 9 and 10 may be used, which will be described in detail below. A pair of rollers 82, 82 are rotatably provided on a support plate 81A fixed to the apparatus main body 3, and a lower belt 83 is stretched between the pair of rollers 82, 82. And
A mounting plate 84 that is vertically movable by being guided by the support plate 81A.
A is provided, and a pair of rollers 86, 86 are mounted on the mounting plate 84A.
Is rotatably provided, and an upper belt 87 is stretched between the pair of rollers 86. Then, with the coil spring 89 as an urging body wound around the bolt 88A and the nut 88B fitted, the opening formed in the horizontal plate portion 81B at the upper end of the support plate 81A is penetrated. A knob 88C is provided on the upper end portion of the bolt 88A in the penetrated state, and a stopper 88D is provided at a position slightly apart from the knob 88C. The stopper 88D is a guide groove communicating with the opening of the horizontal plate portion 81B. It can be moved above or below the horizontal plate 81B through 81C, and when it is moved downward and the bolt 88A is rotated, the bolt is locked to the lower surface of the horizontal plate 81B.

Therefore, as shown in FIG.
When D is locked to the lower surface of the horizontal plate portion 81B, the coil spring 89 having the upper end locked to the bolt 88A.
Urges the mounting plate 84A downward, and as a result, the electric wire D on the lower belt 83 stretched between the pair of rollers 82, 82 is connected to the upper belt stretched between the pair of rollers 86, 86 from above. 87 presses and urges. This allows the nut 88B
The urging force can be adjusted by rotating, and the electric wire D on the lower belt 83 can be applied with a pressure that does not change the electric characteristics according to the characteristics of the electric wire D without applying an unnecessary pressure. . Although not shown, an encoder that operates by rotation of the pair of rollers 82, 82 is provided.

As described above, when the electric wire D is set in the main electric wire cutting apparatus 1, the knob 88C is held by holding the knob 88C.
Is rotated to pass the stopper 88D through the guide groove 81C of the horizontal plate 81B, the mounting plate 84A, the rollers 86, 86 and the upper belt 8 are urged by the urging force of the coil spring 89.
Since 7 moves up, the electric wire D can easily pass through the length measuring device 8A and can be guided further downstream (see FIG. 10).

Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention can be modified in various ways without departing from the spirit of the invention. It is intended to cover alternatives, modifications or variations.

[0032]

INDUSTRIAL APPLICABILITY As described above, the present invention can provide an electric wire cutting device that can carry and measure the length of an electric wire without changing its electrical characteristics.

[Brief description of drawings]

FIG. 1 shows a front view of an electric wire cutting device.

FIG. 2 shows a front view of the length measuring device after setting an electric wire.

FIG. 3 shows a front view of a length measuring device when setting an electric wire.

FIG. 4 is a front view of a main part of an electric wire cutting device in which an operator sets an electric wire.

FIG. 5 is a front view of the main parts of the electric wire cutting device in a state where the electric wire is conveyed by the conveying device.

FIG. 6 is a front view of the main parts of the electric wire cutting device in a state where the flat roller and the eccentric roller of the winding device hold the tip of the electric wire.

FIG. 7 is a front view of a main part of the electric wire cutting device in a state where the winding device winds the electric wire and conveys the electric wire.

FIG. 8 shows a front view of an electric wire cutting device to which another embodiment of the electric wire supply device is applied.

FIG. 9 shows a front view of a length measuring device after setting an electric wire according to another embodiment.

FIG. 10 shows a front view of a length measuring device when setting an electric wire according to another embodiment.

[Explanation of symbols]

1 Electric wire cutting device 8,8A length measuring device 9 Conveyor 10 cutting device 11 Winding device D electric wire

Claims (3)

[Claims] 1. A length measuring device that measures the length of an electric wire while applying a pressure that does not change electrical characteristics, a conveying device that conveys the electric wire for a predetermined distance, and a wire rod that is conveyed by the conveying device. A winding device that conveys while taking,
An electric wire cutting device comprising: a cutting device that cuts the wire conveyed by the winding device into a predetermined length based on the length measuring device. 2. The length measuring device rotates the lower belt and an upper belt stretched between a pair of rollers mounted from above on an electric wire on the lower belt stretched between a pair of rollers. The electric wire cutting device according to claim 1, further comprising an encoder that is operated by the roller. 3. The length measuring device includes an upper belt stretched between a pair of rollers which is urged by an urging member to press an electric wire on the lower belt stretched between the pair of rollers from above. ,
The electric wire cutting device according to claim 1, further comprising: an encoder that is operated by the roller that rotates the lower belt.