JPH0753123A - Withdrawing guide device for metallic wire material - Google Patents

Abstract

PURPOSE:To prevent the generation of a dogleg-shaped bending part or a looped bump in the middle of a metallic wire material when the metallic wire material wound on a reel is withdrawn from the reel. CONSTITUTION:On the upper face of the upper flange part 3b of a reel 3, an arm member 4 is arranged rotatably around its base end, and a metallic wire material unwound from the reel 3 is passed through a ring body 7 arranged on the tip of the arm member 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for guiding a metal filament material wound in a coil on a reel when the metal filament material is pulled out from the reel. .

[0002]

2. Description of the Related Art Generally, when manufacturing a lead wire for an electronic component, as shown in FIG. 4, a reel B, on which a metal wire material C is wound, is mounted on a top surface of a machine base A. The winding axis B2 is placed so as to be substantially vertical to the upper surface of the machine base A, and one end of the metal filament material C unwound from the reel B is fed to the feeding roller mechanism E via the guide portion D. After the metal wire material C is supplied and pulled out from the reel B by the feeding roller mechanism E, it is fixed by a cutting mechanism (not shown) arranged in front of the feeding roller mechanism E. The cutting is performed in the length dimension of.

[0003]

However, in this conventional device, the metal wire rod C wound around the reel B is
By pulling out along the direction of the winding axis B2 of the reel B, the metal linear material C slides in the circumferential direction in a state of being in contact with the outer peripheral surface of the upper flange portion B1 of the reel B. It will be pulled out.

Therefore, when the driving of the feeding roller mechanism E is stopped, the winding of the metal filament material C on the reel B is loosened over a plurality of turns by the elasticity of the metal filament material C, and the winding is loosened. Metal wire material C
As shown in FIG. 4, since it is lifted upward from the upper flange portion B1 of the reel B in a spiral shape of a plurality of turns, when the feeding roller mechanism E is driven next, , A loop-shaped bump C1 is created,
The problem that the loop-shaped bump C1 is clogged in the guide portion D frequently occurs.

Further, since the metal wire strip C has a large slip resistance with respect to the outer peripheral surface of the flange portion B1, when the metal wire strip C is strongly wound around the reel B, the metal wire strip C is , Bent in a V shape at the contact point of the reel B with the flange portion B1, in other words, in the middle of the metal linear material C, as shown in FIG.
There were also a lot of problems that 2 could be done.

According to the present invention, when the metal wire material wound around the reel is pulled out from the reel, the above-mentioned guide device can surely suppress the occurrence of the loop-shaped bump and / or the dogleg-shaped bent portion. It is a technical task to provide

[0007]

In order to achieve this technical object, the present invention provides a reel in which a metal wire rod is wound on the upper surface of a machine base, and a winding axis of the metal wire material is the upper surface of the machine base. With respect to a device for drawing a metal filament material, which is placed so as to be substantially vertical with respect to the reel, and a feeding roller mechanism for feeding the metal filament material unwound from the reel is arranged above the reel,
An arm member is disposed on the upper surface of the upper flange portion of the reel, and a base end of the arm member is rotatably attached to a portion on the axis of the reel or a portion close to the axis while the arm is rotatably attached. The tip portion of the member is projected to the outside of the upper flange portion, and a ring body that passes through the metal filament material unwound from the reel is provided at this tip portion.

[0008]

[Operation] With this configuration, the metal wire strip unwound from the reel is pulled out through the ring body provided at the tip of the arm member by the feeding roller mechanism, and with this pulling out. , The arm member is rotated about the pivot portion at the base end thereof in the direction opposite to the winding direction of the metal filament material on the reel, along the outer periphery of the upper flange portion of the reel,
Since it is possible to prevent the metal wire strip from coming into contact with the outer peripheral surface of the upper flange portion, when the metal wire strip is wound around the reel strongly, a V-shaped bent portion is formed in the middle of the metal wire strip. It is possible to reliably reduce the occurrence of.

Further, the metal wire material wound on the reel is pulled out through the ring body at the tip of the arm member, while the arm member is rotated so that frictional resistance or the like at the pivotal portion is generated. Since appropriate rotation resistance is always provided, when the winding of the metal filament material around the reel is loosened by the elasticity of the metal filament material over a plurality of windings due to the driving stop of the feeding roller mechanism, Since the arm member can prevent the loose metal wire rod from being simultaneously lifted up in a spiral shape of a plurality of turns, a loop-shaped bump is generated in the middle of the metal wire rod. It can be reduced to

[0010]

As described above, according to the present invention, the metal wire rod wound on the reel can be reliably and smoothly operated without forming loop-shaped bumps and doglegs in the middle of the metal wire rod material. Has the effect that can be sent to.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 indicates a machine base, and on the upper surface of the machine base 1, a reel 3 wound with a metal wire rod 2 is provided. It is placed vertically.

One end of the metal linear material 2 unwound from the reel 3 is supplied to a feeding roller mechanism E through a guide portion D, and the metal linear material 2 is fed by the feeding roller mechanism E. After being pulled out from the reel 3, the reel 3 is fed to the front of the feeding roller mechanism E. The arm member 4 is arranged on the upper surface of the upper flange portion 3b of the reel 3 so as to extend in a substantially horizontal direction, and the base end portion 4a of the arm member 4 is placed on the winding axis 3a of the reel 3. While being rotatably and pivotally attached to a part or a part close thereto by a pin shaft 5 or the like,
By fixing a weight 6 of an appropriate weight, which comes into contact with the upper surface of the upper flange portion 3b, to a portion 4b of the arm member 4 projecting from the base end portion 4a to the opposite side, the arm member 4 is rotated appropriately. It is configured to give resistance. The weight 6 may be provided on the arm member 4 itself, as shown by the chain double-dashed line in FIG.

Further, the tip end of the arm member 4 is projected to the outside of the upper flange portion 3b, a ring body 7 is provided at this tip end, and the ring body 7 is unwound from the reel 3. The metal wire rod 2 is configured to pass through. In this structure, the metal linear material 2 unwound from the reel 3 is pulled out by the feeding roller mechanism E through the inside of the ring body 7 provided at the tip end portion of the arm member 4, and along with this pulling out, The arm member 4 has a pin shaft 5 at the base end portion 4a as a center, and as shown by an arrow, in a direction opposite to the winding direction of the metal linear material 2 on the reel 3, the upper flange portion 3b of the reel 3 is provided. By rotating along the outer circumference, it is possible to prevent the metal filament 2 from coming into contact with the outer peripheral surface of the upper flange portion 3b, so that when the metal filament 2 is wound around the reel 3 strongly, It is possible to reliably reduce the generation of the V-shaped bent portion in the middle of the linear material 2.

Moreover, the metal wire 2 wound around the reel 3 is pulled out through the ring body 7 at the tip of the arm member 4, while the arm member 4 is rotated appropriately. Due to the added resistance,
By stopping the driving of the feeding roller mechanism E, the winding of the metal wire rod 2 around the reel 3 is performed.
In the case where it is loosened by a plurality of turns due to the elasticity of, the arm member 4 can prevent the loosened metal wire rod 2 from being simultaneously lifted up in a spiral shape of a plurality of turns. It is possible to reliably reduce the occurrence of a loop-shaped bump in the middle of 2.

In order to impart rotation resistance to the rotation of the arm member 4, instead of providing the weight 6 in contact with the upper flange portion 3b as described above, the base end portion of the arm member 4 is provided. Other means such as inserting a friction plate may be applied to the contact surface between 4a and the upper flange portion 3b. Further, as shown in FIG. 3, an auxiliary arm member 8 made of a piano wire having elasticity is provided on the arm member 4, and a ring body 8 provided at the tip of the auxiliary arm member 8 is provided.
It may be configured such that the metal filament 2 after passing through the ring body 7 of the arm member 4 is passed through a.
Furthermore, the arm member 4 may itself be configured to have elasticity such as a piano wire.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of FIG.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is a diagram showing a conventional example.

[Explanation of symbols]

 1 machine stand 2 metal wire rod 3 reel 3a winding axis 3b upper flange part 4 arm member 4a base end part of arm member 5 pin shaft 7 ring body

Claims (1)

[Claims] 1. A reel in which a metal filament material is wound on the upper surface of a machine stand is placed such that the winding axis of the metal filament material is substantially vertical to the upper surface of the machine stand, and the reel In a drawing apparatus for a metal filament material, in which an unwinding roller mechanism for feeding the metal filament material unwound from the reel is disposed above, an arm member is disposed on an upper surface of an upper flange portion of the reel. The base end of the arm member is rotatably pivoted to a portion on the axis of the reel or a portion close to the axis, while the tip end of the arm member is projected to the outside of the upper flange portion, A guide device for pulling out a metal filament material, characterized in that a ring body, through which the metal filament material unwound from the reel is passed, is provided at a tip portion.