Electric wire rod longitudinal splitting machine

Abstract

To provide an electric wire rod longitudinal splitting machine capable of splitting the covering of a wire rod in the longitudinal direction of a wire rod without damaging a core material.SOLUTION: An electric wire rod longitudinal splitting machine includes a feed mechanism that clamps a core-covered wire rod and rotates to continuously move it, a slitting mechanism that uses upper and lower blades arranged vertically to cut slits into the coating of the wire rod while it is held by the feed mechanism, leaving some of the coating uncut, as the wire moves, and a pulling mechanism that clamps the left and right sides of the coating separately downstream of the slitting mechanism and rotates to continuously pull it out.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electric wire longitudinal splitting machine that can split the coating of a wire longitudinally without damaging the core material. [Background technology]

[0002] Here, wire material refers to wires in which metal wires are covered with rubber or resin, such as electric wires in which a single metal core is covered with rubber or resin, multiple core materials, multiple covered core materials (stranded wires), and cables in which these are covered with a sheet or the like and then further covered with rubber or resin.

[0003] As a tool for splitting a wire rod vertically in the longitudinal direction of the wire rod, manual longitudinal wire splitting machines as shown in Patent Document 1 and Non-Patent Documents 1 and 2 are commercially available.

[0004] Manual wire splitting machines have problems such as difficulty in cutting thick insulation, risk of injury, and inefficiency. They are also not suitable for processing large numbers of wires or for long length splitting. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-60871 A [Non-patent literature]

[0006] [Non-Patent Document 1] https: / / www.youtube.com / watch?app=desktop&v=2OC5JVoNjgI [Non-patent document 2] https: / / ja.aliexpress.com / item / 32615753879.html?src=google&src=google&albch=shopping&acnt=494-037-6276&slnk=&plac=&mtctp=&albbt=Google_7_shopping&albagn=888888&isSmbAutoCall=false&needSmbHouyi=false&albcp=19213787740&albag=&trgt=&crea=ja32615753879&netw=x&device=c&albpg=&albpd=ja32615753879&gad_source=1&gclid=Cj0KCQiA4Y-sBhC6ARIsAGXF1 g4lAmARJr7l12o15INhz-voJka3d4k6D7INsJA-pRhcI-zy7NZQcbIaAoVLEALw_wcB&gclsrc=aw.ds&aff _fcid=b2bf00601c494b1181dd646adcc6e49f-1703219458711-02043-UneMJZVf&aff_fsk=UneMJZVf &aff_platform=aaf&sk=UneMJZVf&aff_trace_key=b2bf00601c494b1181dd646adcc6e49f-1703219 458711-02043-UneMJZVf&terminal_id=901820824bbe4fd29ddcfc60db421f50&afSmartRedirect=y Summary of the Invention [Problem to be solved by the invention]

[0007] Therefore, an object of the present application is to provide an electric wire longitudinal splitting machine that can split the coating of a wire longitudinally in the wire length direction without damaging the core material. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides (1) a feeding mechanism that clamps the wire material coated with a core material and rotates to continuously move it; a slitting mechanism that cuts a slit in the coating of the wire rod at the position clamped by the feeding mechanism with an upper blade and a lower blade arranged in a vertical direction while leaving a part of the coating uncut as the wire rod moves continuously; a pulling mechanism located downstream of the slitting mechanism that holds the left and right sides of the coating separately and rotates to continuously pull them out; An electric wire rod longitudinal splitting machine comprising: (2) The feed mechanism a left pressure feed unit including a left roller that can rotate while pressing the wire from the left side of the wire; a right pressure feed unit including a right roller that can rotate while pressing the wire rod from the right side, The electric wire rod longitudinal splitting machine according to (1), characterized in that the left rollers and the right rollers are each arranged in plural numbers and opposed to each other. (3) The electric wire longitudinal splitting machine described in (1) is characterized in that the left pressure feed unit and the right pressure feed unit move integrally, and the clamping width is variable depending on the thickness of the wire. (4) The electric wire rod longitudinal splitting machine according to (1), characterized in that the upper blades and the lower blades are each arranged in a plurality of pairs facing each other. (5) The electric wire longitudinal splitting machine described in (1) is characterized in that the slitting mechanism comprises an upper holder that holds the upper blade and a lower holder that holds the lower blade, the width of which can be changed according to the thickness of the wire, the upper blade can be inserted into the upper holder and the lower blade can be inserted into the lower holder, and the depth of the slit can be changed according to the thickness of the coating. (6) The electric wire longitudinal splitting machine described in (1) is characterized in that it has an upper wedge tapered toward the tip where the tip is clamped in the slit of the coating by the upper blade, and a lower wedge tapered toward the tip where the tip is clamped in the slit of the coating by the lower blade. (7) The tensioning mechanism a left clamping and rotating unit including a first left roller and a first right roller that clamp the left cut piece of the coating and rotate to pull out the left cut piece; a right clamping and rotating unit including a second left roller and a second right roller that clamp the right cut piece of the coating and rotate to pull out the right cut piece; The electric wire rod longitudinal splitting machine according to (1) is characterized by comprising: (8) The electric wire longitudinal splitting machine described in (7) is characterized in that a rear guide is arranged downstream of the upper blade and the lower blade in the direction of feeding of the wire to guide the left cut pieces and the right cut pieces formed by vertically splitting the coating of the wire to the left and right to the left and right clamping rotation unit. (9) The electric wire longitudinal splitting machine described in (1) is characterized in that the rear guide is a V-shaped plate that widens toward the downstream side and is fixed to the downstream side of the upper wedge and the lower wedge in the wire feed direction. The structure is as follows. [Effects of the Invention]

[0009] The present invention has the above-described configuration and therefore has the following advantages: That is, it is possible to provide an electric wire longitudinal splitting machine that can split the coating of a wire longitudinally in the wire longitudinal direction without damaging the core material. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view of an electric wire longitudinal splitting machine. [Figure 2] FIG. 2 is a schematic plan view of a wire being longitudinally split by an electric wire longitudinal splitting machine. [Figure 3] FIG. 2 is a side view of a slitting mechanism when a wire is longitudinally split by an electric wire longitudinal splitting machine. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to the following examples. [Example]

[0012] As shown in Figures 1 to 3, the electric wire longitudinal splitting machine 1 of the present invention comprises an electrically driven feeding mechanism 2, a slitting mechanism 5, and an electrically driven pulling mechanism 8, which are arranged in the following order from upstream to downstream in the longitudinal direction of the wire 11. While continuously feeding and pulling out the wire 11, the slitting mechanism 5 splits the coating 11a longitudinally into a left cut piece 11b and a right cut piece 11c, and continuously separates the coating 11a and the core 11d in the longitudinal direction of the wire 11 without damaging the core 11d.

[0013] The feeding mechanism 2 holds the wire 11 covered with the core material 11d and rotates to continuously move the wire 11 downstream.

[0014] More specifically, the feed mechanism 2 is characterized in that it comprises, for example, a left pressure feed unit 3 having a rotatable left roller 3b that presses the wire rod 11 from the left side and a right pressure feed unit 4 having a rotatable right roller 4b that presses the wire rod 11 from the right side, and that a plurality of left rollers 3b and a plurality of right rollers 4b are arranged opposite to each other. The plurality of left rollers 3b and right rollers 4b straighten the wire rod 11 to straighten the wire rod 11, so that the slit 5a can be cut at the center of the wire rod 11.

[0015] More specifically, the left pressure feed unit 3 comprises, for example, a motor-driven left drive roller 3a, a left belt 3c fitted around the left drive roller 3a and multiple left rollers 3b, and a left tension roller 3d that presses against the left belt 3c to prevent slippage between the rollers and the belt. A timing pulley wheel with grooves for each roller and a timing belt with grooves that fit into the grooves of each roller are preferred to prevent slippage. The right pressure feed unit 4 also has the same roller and belt configuration.

[0016] More specifically, the right pressure feed unit 4 comprises, for example, a motor-driven right drive roller 4a, a right belt 4c fitted between the right drive roller 4a and multiple right rollers 4b, and a right tension roller 4d that presses the right belt 4c to prevent slippage between the rollers and the belt.

[0017] The left pressure feed unit 3 and the right pressure feed unit 4 are integrally movable in the left and right width directions, and the clamping width can be changed according to the thickness of the wire 11.

[0018] The slitting mechanism 5 leaves a portion of the coating 11a uncut using upper blades 6b and lower blades 7b arranged above and below the wire rod 11 held by the feed mechanism 2, and cuts slits 5a into the coating 11a as the wire rod 11 is continuously moved by the feed mechanism 2. The upper blades 6b and lower blades 7b are arranged in pairs or in multiple pairs facing each other, and together with the multiple left rollers 3b and right rollers 4b, can reliably cut slits 5a into the coating 11a.

[0019] More specifically, the slit mechanism 5 includes, for example, an upper cutter unit 6 including one or more upper blades 6b, an upper holder 6a for holding the upper blades 6b, and an upper wedge 6c tapered toward its tip, the tip of which is preferably held in the slit 5a above the covering 11a of the upper blades 6b; The lower cutter unit 7 comprises one or more lower blades 7b, a lower holder 7a that holds the lower blades 7b, and preferably a tapered lower wedge 7c arranged toward the tip that is clamped in the slit 5a below the covering 11a of the lower blades 7b.

[0020] The tip of the upper blade 6b and the bottom surface of the upper wedge 6c, and the tip of the lower blade 7b and the top surface of the lower wedge 7c may be at the same height (surface position), but it is desirable that the bottom surface of the upper wedge 6c be slightly set back from the tip of the upper blade 6b at a greater distance (upward) from the wire 11, and the top surface of the lower wedge 7c be slightly set back from the tip of the lower blade 7b at a greater distance (downward) from the wire 11. The degree of setback is approximately the thickness of the remaining sheath 11a. By not cutting into the remaining sheath 11a, the movement resistance of the wire 11 is reduced, enabling high-speed vertical tearing.

[0021] The upper holder 6a and the lower holder 7a can be moved up and down to change the width according to the thickness of the wire 11, and furthermore, the depth of the slit 5a can be changed according to the thickness of the coating 11a by inserting and removing the upper blade 6b into the upper holder 6a and the lower blade 7b into and from the lower holder 7a.

[0022] The pulling mechanism 8 separately holds the left and right sides of the coating 11a downstream of the slitting mechanism 5, and then rotates to continuously pull it out downstream.

[0023] More specifically, the tensioning mechanism 8 includes, for example: a left clamping and rotating unit 9 including a first left roller 9a and a first right roller 9b which clamp the left cut piece 11b of the coating 11a and pull out the left cut piece 11b by rotating; a right clamping and rotating unit 10 including a second left roller 10a and a second right roller 10b that clamp the right cut piece 11c of the coating 11a and pull out the right cut piece 11c by rotating; A rear guide 13 is arranged downstream of the upper blade 6b and the lower blade 7b in the feeding direction of the wire 11 to guide the left cut piece 11b and the right cut piece 11c formed by vertically splitting the coating 11a of the wire 11 to the left and right clamping rotation unit 9 and the right clamping rotation unit 10.

[0024] Alternatively, a rear guide 13 is arranged downstream of the upper blade 6b and the lower blade 7b in the feeding direction of the wire 11 to guide the left cut pieces 11b and the right cut pieces 11c formed by vertically splitting the coating 11a of the wire 11 to the left and right clamping and rotating units 9 and 10.

[0025] It is preferable to provide a front guide that guides the wire 11 to the slitting mechanism 5 and a rear guide that guides the left cut piece 11b and the right cut piece 11c to the pulling mechanism 8. As shown in FIG. 2, the front guides are arranged in a V-shape with a front left guide 12a and a front right guide 12b that contract toward the destination of the wire 11. This allows even a bent wire 11 to be guided smoothly into the slitting mechanism 5.

[0026] The rear guide is arranged in a V-shaped manner that widens toward the downstream side in the direction of travel so as to separate the left cutting piece 11b and the right cutting piece 11c from each other and to be automatically clamped by the tensioning mechanism 8. More specifically, the rear guide 13 can be exemplified as a V-shaped plate that widens toward the downstream side and is fixed to the downstream side of the upper wedge 6c and the lower wedge 7c in the wire rod feeding direction. [Explanation of symbols]

[0027] 1 Electric wire rod longitudinal splitting machine 2. Feed mechanism 3 Left pressure feed unit 3a Left drive roller 3b Left roller 3c Left belt 3d Left tension roller 4 Right pressure feed unit 4a Right drive roller 4b Right roller 4c Right Belt 4d Right tension roller 5 Slit mechanism 5a Slit 6 Upper cutter unit 6a Upper holder 6b Upper blade 6c Upper wedge 7 Lower cutter unit 7a Lower holder 7b Lower blade 7c Lower wedge 8 Tension Mechanism 9 Left clamping and rotating unit 9a First left roller 9b First right roller 10 Right clamping and rotating unit 10a Second left roller 10b Second right roller 11 Wire rod 11a Covering 11b Left cut fragment 11c Right section 11d core 12a Front left guide 12b Front right guide 13 Rear guide

Claims

1. a feeding mechanism that clamps and rotates the wire material coated with the core material to move it continuously; a slitting mechanism that cuts a slit in the coating of the wire rod at the position clamped by the feeding mechanism with an upper blade and a lower blade arranged in a vertical direction while leaving a part of the coating uncut as the wire rod moves continuously; a pulling mechanism located downstream of the slitting mechanism that holds the left and right sides of the coating separately and rotates to continuously pull them out; An electric wire rod longitudinal splitting machine comprising:

2. The feed mechanism a left pressure feed unit including a left roller that can rotate while pressing the wire from the left side of the wire; a right pressure feed unit including a right roller that can rotate while pressing the wire rod from the right side, 2. The electric wire rod longitudinal splitting machine according to claim 1, wherein the left rollers and the right rollers are each provided in plural numbers and are arranged opposite to each other.

3. 2. The electric wire longitudinal splitting machine according to claim 1, wherein the left pressure feed unit and the right pressure feed unit move integrally, and the clamping width is variable depending on the thickness of the wire.

4. 2. The electric wire rod longitudinal splitting machine according to claim 1, wherein the upper blades and the lower blades are arranged in pairs opposite to each other.

5. The electric wire longitudinal splitting machine according to claim 1, characterized in that the slitting mechanism comprises an upper holder for holding the upper blade and a lower holder for holding the lower blade, the width of which is variable according to the thickness of the wire, the upper blade being insertable into the upper holder and the lower blade being insertable into the lower holder, and the depth of the slit being variable according to the thickness of the coating.

6. The electric wire longitudinal splitting machine according to claim 1, characterized in that an upper wedge tapered toward the tip where the upper blade fits into the slit in the coating, and a lower wedge tapered toward the tip where the lower blade fits into the slit in the coating.

7. The tensioning mechanism a left clamping and rotating unit including a first left roller and a first right roller that clamp the left cut piece of the coating and rotate to pull out the left cut piece; a right clamping and rotating unit including a second left roller and a second right roller that clamp the right cut piece of the coating and rotate to pull out the right cut piece; 2. The electric wire rod longitudinal splitting machine according to claim 1, comprising:

8. The electric wire longitudinal splitting machine according to claim 7, characterized in that a rear guide is arranged downstream of the upper blade and the lower blade in the direction of feeding of the wire, for guiding the left cut pieces and the right cut pieces formed by vertically splitting the coating of the wire to the left and right to the left and right clamping rotation unit.

9. 2. The electric wire rod vertical splitting machine according to claim 1, wherein the rear guide is a V-shaped plate that widens toward the downstream side and is fixed to the downstream side of the upper wedge and the lower wedge in the wire rod feed direction.

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