JPH0246843Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an improvement of a cutter die for cutting a branch sleeve that connects a main line and a branch line of an electric wire.

(Prior Art) A conventional cutter die for a branching sleeve simply has a blade, and a pair of the blades are installed in a hydraulic machine so as to face each other.

(Problems to be Solved by the Invention) The above-mentioned conventional katsuta die has a problem in that the blade tips collide with each other during use, causing the blade to be easily crushed. In order to solve this problem, if the stroke of the ram of the hydraulic machine is set to a constant value, the hydraulic machine cannot be used for general purposes, and there are parts inside the hydraulic machine that are subject to excessive pressure, making it more likely to break. A problem arises. Further, it is difficult to determine the cutting position of the sleeve, and when the cutter die comes into contact with the sleeve, the pressure causes the sleeve to escape to the side, causing the cutting position to shift and causing damage to the main wire.

The present invention solves the above-mentioned conventional problems, protects the cutting edge, increases durability, and allows the blade to be easily positioned at the appropriate cutting position to cut branch sleeves without damaging the main line. It is intended to provide Katsuta dice.

(Means for Solving the Problems) In this invention, in order to solve the above-mentioned conventional problems, a pair of opposing protrusions 4, 4 are provided on both sides of the cutter die 1, and a cutting blade 9 is provided in the middle of the cutter die 1. , and a stop plate 8 is provided on one inner surface of the projecting piece 4 so as to project therefrom.

(Function) When a pair of cutter dies 1, 1 are attached to a hydraulic device P and hydraulic pressure is applied, the cutter dies 1, 1 are pressed against each other, and the branch sleeve S inserted between them
is disconnected.

When applying the cutter dies 1, 1 to the branching sleeve S, if the main line M side of the cutter dies 1, 1 is brought into contact with the inner surface of the stop plate 8, the position will be set naturally, and the main line M will be branched without being damaged by the blade 9. The sleeve S can be cut.

At the same time as the cutting of the branch sleeve S is completed, both protrusions 4, 4 come into contact with each other to prevent deformation due to the collision of the cutting blades 9, 9.

(Example) The main body 2 of the die 1 has a connecting portion 3 at the lower end (lower side in FIG. 1) for connecting to a hydraulic device. Main body 2
A pair of opposing projections 4, 4 are formed on both sides of the upper part of the sleeve, and a recess 5 having a U-shaped cross section corresponding to the shape of the branch sleeve is formed between the two. A groove 6 extending parallel to the projecting piece 4 is formed in the center of the recess 5, and a screw hole 7 is bored in a direction perpendicular to the groove 6.

A stop plate 8 that projects upward is fixed to the inside of one of the projecting pieces 4 of the main body 2. Stop plate 8
has a width that is less than half the width of the protruding piece 4, and the portion above the protruding piece 4 of the stopper plate 8 forms a step on the outside,
It is formed slightly thin so that the protruding pieces 4 of the other opposing dice 1 can be easily engaged with each other. The lower part of the blade 9 fits into the groove 6 of the main body 2, and the upper edge is sharp. The lower center of the blade 9 has a hole 10 that communicates with the screw hole 7 of the main body, and a bolt 11 is screwed into the hole 10.
It is prevented from coming off from the main body 2 by.

Next, the operation of this embodiment will be explained.

As shown in FIG. 3, the dies 1 are used by being attached to a compressor P with a pair facing each other. If the main line M side of the branch sleeve S is brought into contact with the inside of the stop plate 8, the blade 9 will naturally be set at the proper position, and the compression operation can be started in this state. both dice 1,1
When the branch sleeve S is sandwiched between them and compressed, the branch sleeve S is cut at the center by the blade 9. At the same time as the cutting is completed, the protrusions 4, 4 come into contact with each other to prevent further pressure contact of the blade edge and prevent the blade from collapsing. When the dies 1, 1 approach each other, the stop plate 8 of each die 1 is
Since they each enter inside the protruding piece 4 of the other die 1, there is no problem in joining the dies 1 and 1.

Even if pressure is applied to the branching sleeve S during cutting and the branching sleeve S moves, the movement is prevented by the stopper plates 8, 8.
The cutting position will not shift and therefore the main line will not be damaged.

(Effect of the invention) As explained above, in this invention, when the cutting operation is completed, the protrusions 4, 4 come into contact with each other to prevent the blade 9 from being forced into contact with force and protect the cutting edge, so it can be used for a long time. Furthermore, by bringing the side surface of the branch sleeve S into contact with the stop plate 8, the cutting position of the branch sleeve S is automatically determined appropriately, and pressure is applied to the branch sleeve S when cutting. Since lateral movement is prevented by the stop plate 8, the cutting position does not shift and damage to the main line M can be prevented.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of the die, FIG. 2 is a side view thereof, and FIG. 3 is a front view of the die in use. 1...Katsuta die, 4...Protrusion piece, 8...Stopping plate, 9...Cutting blade, P...Hydraulic device.

Claims (1)

[Scope of Claim for Utility Model Registration] A pair of cutter dies that are installed in a hydraulic machine so that they can be pressed against and separated from each other, and that have a pair of opposing protrusions on both sides, and a cutting blade in the middle of the dies. is provided, and a stop plate for positioning the branch sleeve is provided on the inner surface of one of the protruding pieces so as to protrude from the tip of the protruding piece, and this stop plate is joined to each other when the pair of cutter dies are joined. A cutter die for a branch sleeve, characterized in that the cutter die is arranged so as to enter the inside of the protruding piece of the other cutter die without any interference.