JP3167598U - A pair of circular blades for stripping wire coatings - Google Patents

Abstract

A pair of circular blades for automatically peeling a covering of a three-core flat wire by a predetermined machine is provided. SOLUTION: A pair of circular blades 1 and 2 have sharp teeth 3 and 4 for a 3-core flat wire φ2.6-3 core on the right side and sharp teeth 3a and 4a for a wire diameter φ2.0-3 core on the left side. And the uneven | corrugated flat tooth for 1 core circular type electric wires is formed in the center part. Next, when the three-core flat wire 5 is inserted through a predetermined work guide into the gap between the rotating drive shaft cutter 1 and the driven shaft cutter 2 that are adjusted so as to generate a pressing force. The blade 2 is driven to rotate through the three-core flat wire 5, and the sharp teeth 3 a, 4 a of the circular blades 1, 2 are fed into the covering 6 of the three-core flat wire 5 and simultaneously sent out against the covering 6. A pressing force generated by the gap is applied, and a component force acting at a right angle is generated on the inclined surfaces of the sharp teeth 3a and 4a. [Selection] Figure 1

Description

The present invention relates to a pair of circular blades dedicated to a three-core flat wire for automatically peeling off a covering of a three-core flat wire used for general indoor wiring.

A pair of circular blades of the present invention is used by fitting one each to a drive shaft and a driven shaft configured in parallel in the vertical direction to a wire coating peeling machine having the following registration number.
See Registration No. 3163499

There are a wide variety of conventional peeling machines, ranging from manual types to complicated ones. The blades used in these peeling machines are very often used for 1-core and 2-core circular wires for general indoor wiring. There was no blade for peeling the three-core flat wire.
JP-A-11-98638 JP-A-2001-298822 JP-A-2003-87924

As mentioned above, in the current state of the prior art wire stripping work, each electrician cuts the coating with his or her own simple knife tool, and performs a dangerous peeling work with a cutter knife. It was. For this reason, the copper wire was easily damaged, and it took time and the work could not be performed efficiently. In view of such a current situation, an object of the present invention is to provide a pair of circular blades that automatically peel off a completely new and innovative three-core flat wire with a predetermined machine.

As shown in FIGS. 1 and 2, a pair of circular blades for peeling a three-core flat wire according to the present invention has two vertical sharp edges on both sides of the blade and uneven flat teeth in the center. One place was formed.

The three-core flat type electric wire uses only one of the sharp teeth on both sides to cut the coating, and the separated single-core circular electric wire is peeled off with the flat teeth at the center. That is, it is a two-step peeling operation.

As described above in the technical field, the circular blade 1 is fitted to the drive shaft and the circular blade 2 is fitted to the driven shaft, and the three-core flat wire 5 is pushed into the predetermined gap between the upper and lower blades through the work guide. The coating and the core wire were separated cleanly. However, the rotational speed of the blade is adjusted in accordance with the hardness of the material of the covering and the size of the wire to be processed.

Further, one side of the sharp tooth portion on both sides of the pair of circular blades was formed for copper wire diameter φ2.6 × 3 cores and the other side was for φ2.0 × 3 cores.

As described above, if the three-core flat electric wire 5 is inserted into the gap between the pair of circular blades 1 and 2 rotating as shown in FIGS. 1 and 2, using a predetermined work guide, The covering 6 and the core wire 7 are separated easily and reliably in two steps, and the one-core circular electric wire 10 is separated into the covering 11 and the copper wire 12 by the concave and convex flat teeth 8 and 9.

It seems that the effects of a pair of circular blades of the present invention can be immeasurable for the industry that has maintained the current situation by stripping the 3-core flat wire with a self-made simple tool or cutter knife. It is.

The partial cross section side view which inserted 3 core flat type electric wire φ2.0x3 core. The partial cross section side view which inserted the 1 core circular electric wire. Front explanatory drawing which is going to insert a 3 core flat type electric wire with a work guide.

As shown in FIG. 1, sharp teeth 3 and 4 for a three-core flat wire φ2.6 × 3 cores on the right side of a pair of circular blades 1 and 2, and sharp teeth 3 a for a wire diameter φ2.0 × 3 cores on the left side. 4a and the concavo-convex flat teeth 8 and 9 for the single-core circular electric wire 10 were formed in the central portion.

Next, as shown in FIG. 1, a three-core flat electric wire 5 is placed in a gap between a rotating drive shaft cutter 1 and a driven shaft cutter 2 which are adjusted so as to generate a pressing force. When inserted through the guide, the blade 2 is driven and rotated via the three-core flat wire 5 and the sharp teeth 3a and 4a of the circular blades 1 and 2 are fed into the covering 6 of the three-core flat wire 5 while feeding out. A pressing force generated by the gap is applied to the covering 6, and a component force acting at a right angle is generated on the inclined surfaces of the sharp teeth 3a and 4a.

The apex angles 13 of the isosceles triangles of the sharp teeth 3a and 4a were appropriately formed so that the right-angle component force for tearing the covering 6 by the pressing force was effectively generated on the inclined surfaces of the sharp teeth 3a and 4a.

Further, in the process of peeling the single-core circular electric wire 10, the flat teeth 8 are formed in a concave shape so that the covering 11 does not escape to the outside, and the flat teeth 9 are formed in a convex shape so that the covering 11 is peeled off. .

Then, the root circles of the sharp teeth 3, 4, 3a, 4a were formed in a substantially arc shape by repeated trial manufacture in order to prevent the covering from being wound.

Also, as shown in FIG. 2, a knurling process is performed to continuously feed the processing wire on the outer diameter of the convex flat tooth 9 for peeling the single-core circular wire 10 separated by peeling, Further, the entire teeth of the circular blades 1 and 2 were heat treated.

Embodiments of the present invention will be described below with reference to the drawings. First, the pair of circular blades 1 and 2 of the present invention are fitted into the above-mentioned wire number coating wire peeling machine, and a handle for turning a screw installed in the peeling machine is operated to operate the gap between the circular blades 1 and 2. Adjust the pressure so that an appropriate pressing force is applied.

As shown in FIG. 3, when the processing wire is inserted in accordance with the groove of the work guide installed in the peeling machine, the covering 6 and the core wire 7 are surely cut in the longitudinal direction at the same time and separated and discharged. The

The single-core circular electric wires 10 separated as described above are also inserted one by one in accordance with the groove of the work guide, but before that, a certain pressing force is applied to the gap between the concave and convex flat teeth 8 and 9. The gap is adjusted as appropriate.

During the peeling operation with the peeling machine, if the coating of the processing wire wraps around the cutter and cannot be easily removed, the cutter is removed and the coating is removed.

When the work of peeling the three-core flat electric wire 5 with a predetermined peeling machine is performed with a pair of circular cutters of the present invention, the operation is performed in two steps as described above. It is important to adjust the gap so that a slight pressing force is applied to the coverings 6 and 11.

DESCRIPTION OF SYMBOLS 1 Circular blade (for drive shafts) 7 Core wire 2 Circular blade (for driven shafts) 8 Concave flat tooth 3 Sharp tooth 9 Convex flat tooth 4 Sharp tooth 10 1-core circular electric wire 3a Sharp tooth 11 Cover (1-core circular type) Electrical wire)
4a Sharp teeth 12 Copper wire 5 3-core flat wire (φ2.0 × 3 wires) 13 Vertical angle 6 Cover (3-core flat wire)

Claims (1)

(1) A pair of 1 and 2 circular blades of the present invention are used by being fitted to a drive shaft and a driven shaft configured in an electric wire covering peeling machine of registration number 3163499.
(2) Of the pair of circular blades 1 and 2, one circular blade having a key groove is fitted to the drive shaft, and the circular blade 2 having the key groove is fitted to the driven shaft.
(3) A pair of circular cutters 1 and 2 form sharp teeth 3, 4, 3a and 4a having apex angles 13 on both sides of the circular cutters 1 and 2, and the drive shaft cutter 1 has a concave flat tooth at the center of the cutter. 8 and the driven shaft cutter 2 similarly forms a convex spur tooth 9 at the center of the cutter.
(4) For example, a three-core flat-type electric wire 5 is inserted into the gap between 3, 4, 3a, and 4a, which is adjusted to be adaptive, with a predetermined work guide in the gap between 3a and 4a, and the covering 6 is peeled off. If the single-core circular electric wire 10 separated into the adjusted gap between the concave and convex flat teeth 8 and 9 is inserted, the covering 11 and the copper wire 12 are separated and discharged.
A pair of circular blades for stripping the coating of electric wires having the above-described configuration

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