JP2006149082A - Covering material stripper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure capable of effectively removing cutting scraps without interrupting motions of a stripper. <P>SOLUTION: Two members are layered to constitute two centralizers 16, and the contact surfaces 16a', 16b' are formed in a V shape. The two centralizers 16 are disposed at a roughly equal angle along a circumferential direction of an outer periphery surface of a wire. The contacts are disposed in a linear symmetry. Pressure at the contacts is applied toward the center direction of the wire, and compensated for each other in a facing direction for complete centering. Besides, a connecting shaft 26 for working is made a tube shape, and a suction pipe 80 opening adjacent to the cutting position by a cutter 15 is provided at the inside of the shaft, and at least one portion W<SB>1</SB>of coating material which is cut and removed by the cutter 15 is sucked and removed into the suction pipe 80 by the motion of an injector 81. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a covering material removing apparatus for cutting and peeling off an end portion of a covering material such as an electric wire or an optical fiber cable over a predetermined length.

Conventionally, for example, as shown in FIG. 20 (a), the wire (electric wire) the end of the covering member W ₁ and W stripped over a required length by the wire stripper to expose the core wire W _2, in Figure 20 ( As shown in b), a crimp terminal 47 is attached and provided as wiring.

  In general, this type of wire stripper, after inserting the end of the wire, grips the end with a gripper from both sides, sandwiches the cutting position of the covering material from both sides with a cutter blade, and cuts only the covering material The cutter blade is moved to peel off the wire end covering material.

  FIG. 21 shows an example of a schematic structure of a centering member and a cutter in a conventional wire stripper. Cutting edges 45a are formed obliquely at the tips of the pair of cutters 45, and a pair of centering members 46 having abutting surfaces 46a that are axisymmetric with the cutting edges 45a are overlapped. That is, the blade edges 45a of the cutter 45 and the contact surfaces 46a of the centering member 46 are formed on substantially the same surface, and the blade edge 45a of each cutter 45 and the contact surface 46a of each centering member 46 are V-shaped. These are attached to the tips of a pair of arms (not shown) and arranged opposite to each other (see Patent Document 1 described later).

Then, after the centering while rotating across the wire W, but in which only the cutting edge 45a of the cutter 45 cuts the covering material W ₁ of the wire W projects to the virtual line position, the abutment surface 46a Point B contacts the wire W, and the contact pressure P acts toward the center C of the wire W.

  FIG. 22 shows a schematic structure of an example of a centering device in another conventional wire stripper. In this case, at the tip of the four movable pieces 52 as the centering members, one of the substantially oblique sides is arranged on the same surface as the contact surface 52a, and these movable pieces 52 are the common plate plate 51. On the other hand, it is attached to a circular arc groove 54 formed in the plate plate 51 via a pin 53 so as to be displaceable. Then, the contact surface 52a at the tip of the adjacent movable piece 52 surrounds the wire W from four directions, and slidably contacts the wire W in accordance with the displacement of the movable piece 52, so as to match the diameter of the wire W to be processed. Reduce or enlarge. Also in this case, the point B of the contact surface 52a contacts the wire W, and the contact pressure acts toward the center C of the wire W (see Patent Document 2 described later).

JP-A-11-285123 (Page 4, column 6, lines 11-25) and FIG. 7) Japanese Patent No. 2773596 (Page 5, column 10, line 41 to page 6, column 11, line 4, and FIG. 9)

However, as shown enlarged in FIG. 23, in the conventional wire stripper, when cut removing the coating material W ₁ of the wire W as the virtual line by the cutter 45, in order to remove the cutting debris W _1, wire In the insertion hole 68, the pressurized air 61 was ejected from the air nozzle 60 to the rear (back side of the apparatus).

In such an air blow system, the cutting residue W ₁ scatters backward as indicated by an arrow, and easily adheres to a mechanism portion in the apparatus, thereby obstructing the operation of the machine. Therefore, until now, for example, the operation was interrupted every 4 to 5 hours, and the mechanical part of the machine was disassembled and the inside of the machine was forced to be cleaned each time.

  Accordingly, an object of the present invention is to provide a structure capable of effectively removing the above-mentioned cutting waste without interrupting the operation of the apparatus.

That is, the present invention provides a centering member for centering an object covered with a covering material, and a position close to the centering member for cutting and removing at least a part of the covering material. In a covering material removing apparatus having a cutting member,
An operating shaft for operating the centering member and / or the cutting member is formed in a tubular shape,
A suction tube opened near the cutting position by the cutting member is provided inside the tubular operating shaft, and at least a part of the covering material cut and removed by the cutting member is inserted into the suction tube from the opening. The present invention relates to a covering material removing apparatus that is configured to be removed by suction.

  According to the covering material removing apparatus of the present invention, the suction pipe opened near the cutting position by the cutting member is provided inside the tubular operating shaft for operating the centering member and / or the cutting member. Since at least a part of the covering material cut and removed by the cutting member is sucked and removed from the opening into the suction pipe, the tube is operated for suction of the removed covering material. The space inside the shaft can be skillfully used, and the suction pipe can be provided here to effectively remove the suction from the opening. Therefore, since the removed coating material does not scatter inside the apparatus and can be discharged out of the dust box in the apparatus or outside the apparatus, the cutting residue is continuously removed without interrupting the operation of the apparatus. be able to.

  In the covering material removing apparatus of the present invention, in order to sufficiently remove the cutting waste, at least a part of the covering material cut and removed by the ejector disposed at the rear or rear of the suction tube is placed in the suction tube. It is desirable to be sucked and collected by the collecting means or discharged outside the apparatus.

Moreover, in this covering material removal apparatus,
There are provided a plurality of centering members which are urged from the outer peripheral surface of the object toward the center thereof and abut against the outer peripheral surface at a plurality of locations, and the abutting portions are arranged substantially symmetrically. The centering members are arranged at substantially equal angles along the circumferential direction of the outer peripheral surface of the object, and contact with the object with substantially the same urging force,
The cutting member is provided at a position close to the plurality of centering members;
First lever means for operating the plurality of centering members with respect to the object and second lever means for operating the cutting member with respect to the object are in contact with the cam means. ,
By moving the cam means by the tubular actuating shaft, the first lever means and the second lever means are actuated, passing through the center of the cam means and the center of the tubular actuating shaft, respectively. It is desirable that the suction pipe is provided.

  If comprised in this way, the said several centering member will be arrange | positioned at the substantially equal angle along the circumferential direction of the outer peripheral surface of the said target object, and contact | abuts with the substantially equal urging | biasing force with respect to the said target object. Since the plurality of contact points of the centering members with respect to the outer peripheral surface of the object are arranged substantially line symmetrically, the contact points of the centering member with respect to the object are centered on the object. The force acting toward it is always canceled out in the opposite direction with the same magnitude. As a result, the object can be reliably centered by the centering member, and at least a part of the covering material can be reliably and purposed by the cutting member provided at a close position where the centering state can be secured. It can be removed by cutting in the state.

  Since the first lever means for operating the centering member and the second lever means for operating the cutting member are operated by movement of the cam means by the tubular operating shaft, In addition to the centering, the subsequent cutting can always be performed reliably, and at the same time, the above-mentioned cutting waste can be sucked and removed while the operation of the tubular operating shaft is performed without any trouble.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Structure and operation of the centering cutting mechanism First, the centering cutting mechanism in the coating material removing apparatus (hereinafter referred to as a wire stripper) according to the present embodiment will be described.

  FIG. 7 is a schematic cross-sectional view of the main part showing the positional relationship between the operation step of the centrizer as the centering member and the cutter as the cutting member and the wire as the object in this wire stripper (shown in FIG. 21). FIG. 14 is a diagram corresponding to a conventional example), and such a mechanism is provided at the tip of the rotor 1 shown in FIG. 14 as a main part constituting a wire stripper 50 (see FIG. 13) described in detail later. .

  Next, the mechanism of the portion where the centizer and the cutter shown in FIG. 7 are provided will be described.

  14A shows a side view of the entire rotor 1. The rotor 1 is arranged in the wire stripper 50 shown in FIG. 13 so that a part of the rotor 1 protrudes forward. As shown in FIG. 14A, in the rotor 1, a centizer and a cutter are supported by respective arms inside the rotor body 2 at the rear part of the cap 3, and a ball bearing 30 is provided at the rear end of each arm. The ball bearing 30 is arranged in contact with conical cams 6 and 7 as an operating device of the centering and cutting mechanism, and the conical cam is urged forward by a coil spring 18 fixed to the drive pulley 8. . Each of the above portions is fixed to or slidable on the shaft 25, and the tip of a connecting shaft 26 as an operating shaft provided in the longitudinal direction of the shaft 25 is coupled to the conical cams 6 and 7, This activates the arms of the centizer and the cutter. The rotor 1 rotates in one direction as shown in FIG.

  2 is a schematic cross-sectional view taken along the line II-II in FIG. 14B (same as the cross-sectional view taken along the line aa in FIG. 4). As shown in the drawing, the cutter arms 10 and 10 are pivotally supported by the pins 12 with the shaft 25 interposed therebetween inside the main body 2 fixed to the distal end portion of the shaft 25, and the ball joint 4 is disposed at the distal end of the cutter arm 10. A blade holder 14 urged by a spring 4a is provided, and cutters 15 are attached to the blade holder 14 so that the blade edges face each other. A bearing holder 11 is connected to and extended from the rear portion of the cutter arm 10 by a rivet 17, and a ball bearing 30 is attached to the rear end thereof. The ball bearing 30 is in contact with the cutting cam 7 constituting a part of the conical cam. ing.

  The cutting cam 7 is arranged opposite to the diameter direction of the conical cam, and both of them are connected by a connecting portion 7a at the tip of the cutting cam 7 so as to be slidably fitted onto the shaft 25, and the rear portion of one of the cutting cams 7 is connected to the connecting shaft 26. Coupled by the joint pin 21, the connecting portion 7 a at the tip is urged rearward by the coil spring 22. A groove 24 is formed in the shaft 25 at a portion where the joint pin 21 penetrates the shaft 25, and the cutting cam 7 is pushed by the connecting shaft 26 that can slide in the length direction of the shaft 25. The cutting cam 7 connected to the joint 26 by the joint pin 21 slides along the groove 24 in the region of the groove 24.

  Therefore, the cutting cam 7 which is disposed oppositely and integrated with each other at the connecting portion 7a is displaced in the front direction so that it is not coupled with the joint pin 21 in FIG. The state in which the cutting arm 10 is actuated by the cutting cam 7 is schematically illustrated as a half sectional view. Of course, both of the cutting cams 7 operate simultaneously, and the first step operation is accompanied by a centriser arm, which will be described later, and the second step operation operates only the cutting arm 10.

  The drive mechanism of the connecting shaft 26 for operating the cutting cam 7 is driven by a stepping motor (not shown) by converting the rotary motion into a linear motion, and the rotor 1 is rotated by another motor (not shown) via a belt. The drive pulley 8 fitted on the shaft 8 is driven to rotate.

  The cutting arm 10 is hooked in the engaging groove 10a on the outer surface of the cutting arm 10, and is always urged from the outside by a coil spring (not shown) provided so as to surround the outer surface of the arm 10 and a later-described centriser arm. Since the ball bearing 30 is pressed against the conical cam, when the conical cam is actuated to push up the rear end of the cutting arm 10, the front end side of the cutting arm 10 is rotated in the closing direction so that the conical cam is in the original position. When returning to, it rotates in the opposite direction.

  Further, a spring 13 is provided inside the tip of the cutting arm 10, and the blade holder 14 is always pressed outward to prevent the cutting arm 10 and the blade holder 10 from rattling. The same applies to the centizer 16 described later.

  FIG. 4 shows a front view of the state in which the cap 3 at the tip of the rotor 1 is removed. As shown in the figure, the above-described cutter 15 and a centizer 16 are disposed opposite to each other in a direction orthogonal thereto. The wire W inserted from the insertion hole 28 formed at the center of the cap 3 in FIG. 2 is positioned as indicated by the phantom line in FIG. 4 and the covering material is cut after centering.

  FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 14B (same as the cross-sectional view taken along line aa in FIG. 5). The structure of the riser arm 9 is shown.

  Since the configuration of the centizer arm 9 is almost the same as that of the cutting arm 10 described above, the description of the same parts is omitted, and different parts will be described.

  First, a centizer 16 is superimposed on the tip of the centizer arm 9, and centizer members 16a and 16b, which are constituent members thereof, are attached to the blade holder 5. The centizer members 16a and 16b are inclined at the tip. As shown in FIG. 5, the abutting surfaces are symmetrically arranged to form a V shape.

  The conical cam for actuating the centriser arm 9 is composed of centriser cams 6, 6 arranged opposite to the cutting cam 7. Both the cams 6, 6 are connected to each other at the rear, as shown in FIG. The centriZer spring 18 engaged with the engagement hole 8a formed in the drive pulley 8 and the engagement hole 6b formed in the centriZer cam 6 is urged forward.

  The centrizer cam 6 is slidably fitted on the shaft 25, and when the connecting shaft 26 is driven, the centrizer cam 6 is interlocked with the cutting cam 10 during the operation of the first step. It closes toward the center direction of W, and its contact surface is brought into contact with the side surface of the wire W.

  FIGS. 15 and 16 are schematic views showing only the main parts of the cutting arm 10 and the cutter 15 and the centizer arm 9 and the centizer 16 described above. The main points of the operation of both will be described with reference to FIGS. The coil spring not shown in FIG. 2 is simply shown as a coil spring 23 in FIGS. 15 and 16, but this coil spring 23 is shown by a virtual line in FIGS. 15 (b) and 16 (b). In addition, the cutting arm 10 and the centralizer arm 9 are provided on the outside so as to surround them.

  The main part of the cutting arm 10 shown in FIG. 2 is configured as shown in FIG. 15A (state before operation), and moves in the direction of the solid arrow when the cutting cam 7 constituting the conical cam is operated. Then, the cutting arm 10 operates as indicated by a solid-line arc arrow about the pin 12 by the cutting cam 7, and the cutters 15 arranged so as to face the top and bottom of the tip oppose each other as indicated by a solid-line arrow. When the cutting cam 7 returns to the original position, each part operates in the direction of the broken line arrow.

  As shown in FIG. 15 (b), the cutter 15 is guided by a parallel pin 29 with respect to a cutter blade (not shown) and fixed by a bolt 31, and the centizer 16 arranged orthogonal to the cutter 15 has a contact surface. It is formed in a V shape and is arranged in a superimposed manner.

  FIG. 16 (a) shows the main parts (state before operation) of the centizer arm and the like shown in FIG. 3, and when the centizer cam 6 constituting the conical cam is operated, it moves in the direction of the solid arrow. As a result, the centizer arm 9 operates as indicated by a solid-line arc arrow with the pin 12 as an axis, and the centizer 16 disposed so as to face the top and bottom of the tip opposes as indicated by a solid-line arrow. Further, when the centizer cam 6 returns to the original position, each part operates in the direction of the broken line arrow.

  FIG. 16B shows a state where the centizer 16 is closed and the state of the cutter 15 in this state.

  As described above, the degree of operation of the cutting cam 7 and the centralizer cam 6 at the first step is such that the cams 7 and 6 are interlocked according to the diameter of the entire wire W to be processed or the diameter of the processed portion. When only the cutting cam 7 is operated in two steps, cutting is performed to the extent necessary for the cutter 15 at the tip of the cutting arm 10 to cut the covering material according to the thickness of the covering material of the wire W to be cut. Only the cam 7 operates.

Centering mechanisms have been described the structure of the wire stripper 50 according to this embodiment, FIG. 6 is an enlarged illustration of the distal end main part of the cutter 15 and St. riser 16 in the above explanation, the tapered The relationship between the cutter 15, the centizer 16, and the wire W at the time of the first step and the second step of the cam is shown.

  7A (a) is a front view of the cutter 15 and the centizer members 16a and 16b (viewed from the front) before operation, and FIG. 7 (b) is a cross-sectional view taken along the line bb in FIG. 7 (a). As shown in FIG. 8 which is a perspective view showing this state, the cutter 15 is located behind the centrizer 16, and the centrizer 16 is arranged at a substantially equal angle in the opposing direction at the front position of the cutter 15. As described above, the same urging force is applied to the centizers 16 via the centrizer arms 9 by the operation of the conical cams.

  In addition, as shown in FIG. 8, the centizer members 16a and 16b of the centizer 16 are overlapped with each other in the front-rear direction, and the centizer members 16a and 16a of both centizers 16 face each other. The contact surfaces 16a ′ are arranged on the same surface, the centizer members 16b and 16b are also opposed to each other, the contact surfaces 16b ′ are arranged on the same surface, and the contact surfaces 16a ′ and 16b ′ are arranged symmetrically. Thus, the contact surfaces 16a ′ and 16b ′ form a V shape.

  Accordingly, a part of the V-shaped region of the contact surfaces 16a ′ and 16b ′ of the opposed centizers 16 contacts the wire W, and the contact portion contacts at a position shifted in the front-rear direction. In addition, as described above, the pressing force of each centizer 16 is substantially the same, the centizers 16 are arranged to face each other at substantially the same angle, and their contact surfaces and contact points are arranged almost symmetrically. As a result, the remarkable effects described above can be achieved.

This mechanism will be further described in detail with reference to FIG. 10 which is an enlarged illustration (the cutter 15 is not shown) of the positional relationship between the tip of the centrizer 16 and the wire W in FIG. 7B (the state where the centrizer is closed). As shown in FIG. 10A, both the centizers 16 sandwich the wire W between the respective contact surfaces 16a ′ and 16b ′, and contact the outer peripheral surface of the wire W at points B _{1 to} B ₄ .

In this way, first, the centizers 16 and 16 are arranged at substantially equal angles with respect to the center lines c ₁ and c _{2 of the} centizers 16 along the circumferential direction of the outer peripheral surface of the wire W. The contact portions (point B) of the contact surfaces 16a ′ and 16b ′ with the wire W are also arranged almost symmetrically. Accordingly, the pressing force F ₁ of _one centizer 16 due to the action of the above-described conical cam generates a vector component in a direction perpendicular to the contact surface at points B ₁ and B ₂ . The pressing force F ₂ of the other centizer 16 also generates a vector component in the direction perpendicular to the contact surface at points B ₃ and B ₄ . The pressures (vector components) P _{1 to} P _{4 at} each point B act equally toward the center C of the wire W.

That is, since the centizers 16 are opposed to each other at substantially the same angle, the pressures P ₁ , P _{2 at the} contact points B ₁ , B ₂ , B ₃ , B _{4 on the} contact surfaces 16a ′, 16b ′. , P ₃ , P ₄ act equally toward the center C of the wire W. This is because the pressing force F ₁ of one centizer 16 and the pressing force F ₂ of the other centizer 16 have the same pressing force (F ₁ = F ₂ ) by the same centizer cam 6 (see FIG. 16). This is due to the fact that it is given to both centizers 16. Therefore, the pressure P ₄ at a pressure P _3, B ₄ at a pressure P _2, B ₃ at a pressure P _1, B ₂ in B ₁ represents an equivalent. Therefore, since the pressure P acting at each point B is always canceled as an equivalent pressure P from the opposite direction, the wire W can be reliably centered.

FIG. 10B is a diagram showing the contact surfaces 16a ′ and 16b ′ in FIG. 10A as one surface. In other words, the abutment surface 16a indicated by oblique lines ', 16a' contact point (●) B _1, B ₂ is B _1, B ₂ in FIG. 10 (a), the white background of the contact surface 16b ', 16b' The contact points (◯) B ₃ and B ₄ of FIG. 10 indicate B ₃ and B ₄ in FIG. In this way, the contact portions of the centizer 16 are displaced in the length direction of the wire W, and are arranged diagonally to each other, so that the phenomenon that the wire W escapes in the length direction may occur. Can be prevented.

  The remarkable feature of the present embodiment is that the above-described remarkable effects can be exhibited by such a configuration and mechanism.

  FIG. 7B shows the operation of the cutter 15 and the centizer 16 associated with the first step of the conical cam described above. As is apparent from the perspective view in FIG. 9, the abutting surfaces 16 a ′ and 16 b ′ of the opposing centizer 16 abut against the side surface of the wire W, and as shown in FIG. At the point, the equivalent pressure P acts toward the center of the wire W, and the cutting edge 15a of the cutter 15 disposed close to the centizer 16 approaches the wire W.

  This state is shown by a cross-sectional view taken along the line bb in FIG. 7B (a), as shown in FIG. 7 (b), in which the abutting surfaces 16a ′ and 16b ′ of the front and rear centrisers of the wire W are shown. A part (thick line portions 16c and 16d of the cutting line in (a)) appears as a cross section 16c above the wire W and 16d below, and at the same cutting position, the abutment surface 16b of the rear side and the front side of the wire W A part of ', 16a' also appears as a cross section 16c 'on the upper side and 16d' on the lower side.

  7B (a) is a cross-sectional view taken along the line cc in FIG. 7B. As shown in FIG. 7C, a part of the centizer member on the front side and the rear side of the wire W is cut in a cross section ((a)). The left side abutment surface of the centizer 16 on the side opposite to the wire W in this portion is hidden by the cross-sectional portion on the right side of the drawing and does not cover the cutting line. The contact surfaces 16a 'and 16b' appear.

In FIG. 7C (the cross section taken along the line bb is the same as the cross section taken along the line bb in FIG. 7B), only the cutter 15 is further operated in accordance with the second step of the conical cam described above. as shown in b), shows a state in which the blade edge 15a of the cutter 15 has cut the dressing W ₁ of the wire W. That is, since the cutter 15 is provided at a close position where the centering state by the centizer 16 can be secured, the cut covering material can be surely removed and desired processing can be performed satisfactorily.

First Step and Second Step A series of these operations will be described with reference to FIG. 11 (simplified views of FIGS. 2 and 3) including steps of the rotor 1 in order.

  11A shows a state before the operation (corresponding to FIG. 6A), and FIG. 11B shows a state at the first step (corresponding to FIG. 7B). That is, as already described in the description of FIG. 2 and FIG. 3, the cutting cam 7 and the centizer cam 6 constituting the conical cam operate in conjunction with the driving of the connecting shaft 26 (not shown), and the centrise arm 9 shows a state in which the centizer 16 at the tip is in contact with the side surface of the wire W via 9. In this case, the degree of closing of the centizer 16 is closed according to the diameter of the wire W, and the degree of closing is regulated by a conical cam constituted by the centizer cam 6 and the cutting cam 7, and as shown in FIG. At the same time as inserting the wire W, the rotor 1 starts to rotate by sensing of a sensor (not shown). The cams 7 and 6 are linked by pushing the rear end of the cam 7 while engaging the connecting portion 6 a of the cam 6.

Next, as shown in FIG. 11 (c ₁ ), only the cutting cam 7 is further operated during the second step, and the rotating cutter 15 cuts the covering material of the wire W, but is orthogonal to the centizer arm 9. cutting arm 11 that is disposed opposite to the direction is as shown in FIG. 11 (c ₂₎ (Figure 11 c ₂ -c ₂ line cross-sectional view of (c _1)).

That is, as shown in FIG. 11 (c ₂ ) (corresponding to FIG. 7C), the cutting cam 7 in this state advances further than the centizer cam 6 corresponding to the thickness of the covering material of the wire W, and the cutting is performed. The ball bearing 30 of the arm 10 is pushed up, and the cutter 15 at the tip of the cutting arm cuts the coating material on the entire circumferential surface of the wire W while rotating. The forward movement of the cam 7 alone is performed by disengaging the cam 6 from the connecting portion 6a while resisting the biasing force of the spring 22.

Next, as shown in FIG. 11 (d), the entire rotor 1 moves while rotating as shown by the arrow while the cutter 15 cuts the coating material of the wire W, so that the wire W The cut covering material W ₁ is peeled and removed while the core wire W ₂ is turned into a winding. As shown in FIG. 17, the movement of the entire rotor 1 is supported by the plate plate 38 with the shaft 25 of the rotor 1 via the bearing 36, and the plate plate 38 is operated as a guide rail by the stepping motor in the longitudinal direction of the rotor 1. This is because the upper part 44 is slidably supported.

  FIG. 12 shows an example in which the end portion of the coaxial cable W is processed by the above-described wire stripper.

In the coaxial cable W, as shown on the right side of FIG. 5A, the outer side of the core wire W ₂ is covered with a covering material W ₁ ′, and a mesh conductive material W ₃ is disposed on the outer side. Have _one . First, as shown in FIG. 4B, the position of C ₁ is cut to remove the covering material W ₁ and the conductive material W ₃ ahead of this, and then, as shown in FIG. Cut the position of ₂ to remove the covering material W ₁ ′ beyond this to expose the core wire W ₂ , and finally cut the position of C ₃ as shown in FIG. The covering material W ₁ is removed to expose the conductive material W ₃ .

That is, the centizer 16 is brought into contact with the wire W in FIG. 12A in the same manner as in FIG. 11B described above, and the cutting position C ₁ in FIG. 12B is covered as in FIG. 11C ₂ . Corresponding to the thickness of the material W ₁ and the conductive material W ₃ , only the cutting cam 7 is further operated, and the cutter 15 at the tip of the cutting arm 10 is operated, so that the coating material W ₁ ahead of the C ₁ position The conductive material W ₃ is cut and removed.

Next, when the covering material W ₁ ′ at the cutting position C ₂ in FIG. 12C is cut, the shaft 26 moves linearly so that the centralizer 16 contacts the covering material W ₁ ′ at a position corresponding to the cutting position C _2. Then, as in FIG. 11 (c ₂ ), the cutting cam 7 operates in accordance with the thickness of the covering material W ₁ ′. Therefore, the cutter 15 is operated via the cutting arm 10 to cut the covering material W ₁ ′. by removing, the core wire W ₂ of the wire W is exposed. Moreover, since the core wire W ₂ is formed into a winding wire by removing the covering material W ₁ ′ while the cutter 15 is rotating, it is easy to connect to a terminal or the like.

Next, at the time of cutting at the cutting position C ₃ in FIG. 12D, the shaft 26 moves linearly and the centizer 16 comes into contact with the side surface of the wire W, and the cutting cam 7 is moved in the same manner as in FIG. 11C ₂ . Since it operates corresponding to the thickness of the covering material W _{1 at} the cutting position C ₃ , the conductive material W ₃ is exposed by operating the cutter 15 via the cutting arm 10 to cut and remove the covering material W _1. .

  Such a series of operations is automatically performed based on a preset program with respect to an electronic automatic control mechanism (not shown) provided in the wire stripper.

  Accordingly, the processing of the wire W as shown in FIG. 12 is performed by using the wire stripper shown in the above-described embodiment, thereby reliably centering the wire W and maintaining this state. Can be cut at an arbitrary position and easily processed into a desired shape.

Overall Configuration of Wire Stripper FIG. 13 is a perspective view showing a configuration of the wire stripper 50 according to the present embodiment for performing the above-described processing, with a part broken away.

  The wire stripper 50 has a rear portion of an inner frame 60 composed of an upper portion 60a and a lower portion 60b serving as a wiring space 69, an outer frame 61 that covers them, and a main switch 65 disposed on the front portion of the lower portion 60b. A handle 62 is provided on the upper surface of 61 and is portable.

  Various electronic components 70 and wirings between these electronic components 70 are arranged on the floor plate 63 of the upper portion 60a and led to a wiring space 69 at the rear. In the lower part 60b, a rotor 1 partially protruding forward is disposed, and a motor 67 that rotationally drives the rotor 1 and a stepping motor 68 that drives the rotor 1 and the connecting shaft 26 are disposed in the front and rear. The plate 38 is pivotally supported.

  A base 66a made of a thick plate is fixed to the floor plate 66 of the lower part 60a, and support bases 64 fixed perpendicularly to the base are arranged in the front-rear and left-right directions, and penetrate through these support bases 64 in the front-rear direction. A guide rail 44 is provided, and the plate plate 38 is slidably supported on the guide rail 44.

  A pulley 43 coaxial with the motor 67 rotates the pulley 8 of the rotor 1 via the belt 35, and the connecting shaft 26 of the rotor 1 is connected to a conversion mechanism (not shown) connected to a stepping motor 68. The rotational motion of the motor 68 is converted into a linear motion, and the connecting shaft 26 is driven in the front-rear direction.

  Therefore, the operation of the conical cam connected to the connecting shaft 26 activates the cutting arm 10 and the centizer arm 9 installed in the main body 2 of the rotor 1 described above, and operates the centizer 16 and the cutter 15. After the wire W is cut, the plate plate 38 slides on the guide rail 44 and moves rearward, so that the rotor 1 pivotally supported by the plate plate 38 also moves rearward, as shown in FIG. Remove the coating material.

  A gripper 48 is disposed in front of the lower part 60b of the inner frame 60 and operates via a mechanism (not shown). The gripper 48 centers and grips the wire W to be processed, and the centering by the gripper 48 and the centering of the wire W by the centrizer 16 coincide with each other. For this reason, by inserting the wire W into the insertion hole 28 of the cap 3 of the rotor 1, the gripper 48 centers and grips the wire W, and the tip of the wire W is detected by a sensor (not shown) to start the motor 67. Then, the rotor 1 is rotated, and the same centering is performed by the centizer 16, and then the cutter 15 is operated to cut. Therefore, the centering is automatically and surely performed, and the desired cutting can always be performed reliably.

  The operations of these parts and the processing as shown in FIG. 12 are performed in advance by setting an arbitrary cutting position, cutting depth, etc. in accordance with the standard of the wire W with respect to the electronic control mechanism installed in the upper portion 60a. By doing so, automatic processing can be performed.

  According to the present embodiment, as shown in FIGS. 7 to 11, the centizer 16 for centering the wire W is arranged at substantially the same angle along the circumferential direction of the outer peripheral surface of the wire W, and The contact points are arranged almost line-symmetrically and contact at point B of the contact surfaces 16a 'and 16b'. The contact point B is displaced in the front-rear direction on the contact surfaces 16a 'and 16b' having a V-shape. Placed on both sides of the wire W and acting toward the center of the wire W, so that the centering can be reliably performed and the desired processing can be performed, and the manufacture is also easy and inexpensive. Can be provided.

  The centered wire W can be arbitrarily processed into a desired shape using the wire stripper 50 described above.

  On the contrary, in the case of the conventional example shown in FIG. 18 (enlarged view of the main part in FIG. 21), the wire W escapes in a direction in which the pressure from the contact point B of the contact surface 46a does not act (direction intersecting the arrow). Therefore, the centering becomes unstable.

Further, in the conventional example shown in FIG. 19 (enlarged view of the main part of FIG. 22), the contact surface 52a is formed on the same surface, and each contact surface 52a contacts the wire W at a substantially equiangular position. Since one side of the tip of the movable piece 52 abuts on the wire W and the other side is in sliding contact with the adjacent movable piece 52, the contact pressure on the wire W due to the pressing force disassembled at the tip of the movable piece 52 is uniform. In addition, as shown in FIG. 22, the movement of the movable piece 52 is restricted by the position of the pin 53 engaged with the arc groove 54, and therefore the position of the pin 53 and the ability of the operating mechanism to operate the pin. Is non-uniform, the pressure acting from the contact point toward the center of the wire W becomes non-uniform, for example, P ₁ <P <P ₂ , the centering is not stable, and the structure is complicated It is difficult to make.

Aspirate cutting debris will be explained the suction removal operation for cutting and removing the coating material W ₁ of the wire W in the wire stripper 50 described above.

  FIG. 1 corresponds to each state shown in FIG. 6 described above. First, as shown in FIG. 1 (1), a wire (electric wire) W is inserted from the electric wire insertion hole 28. At this time, as shown in FIGS. 2 and 3, the operating shaft (connecting shaft) 26 is tubular, and the suction tube 80 provided in close contact with the inside thereof is opened at a position near the cutter 15, and the wire The stripper 50 is disposed through the plate plate 38 from the drive pulley 8 of the stripper 50.

Then, the wire W is inserted so that the rear end portion of the wire W enters the suction pipe 80 as shown in FIG. 1 (1), and in this state, as shown in FIG. W centering (Fig. 3) after a cut and presses the cutter 15 to the wire coating material W ₁ (Fig. 2).

Next, as shown in FIG. 1 (3), the wire covering material W ₁ is cut and removed by the cutter 15 through the above-described steps.

  At this time, as shown in FIG. 2, an ejector 81 arranged behind the suction pipe 80 is operated by turning on the solenoid valve 82, and the inside of the suction pipe 80 is shown by an arrow 83 in FIG. 1 (4). Inhale backward.

As a result, as shown in FIG. 1 (4), the cut covering material W ₁ is sucked into the suction pipe 80 as it is, and passes through the pipe 84 provided with the ejector 81 to the dust box 85 in (or outside) the wire stripper. Be contained.

Such an ejector 81, for example, introduces compressed air 86 sent from a solenoid valve 82 and injects it backward from an ejection hole 87 formed in the inner wall surface, and the inside of the above-described suction pipe 80 is forced by this ejection pressure. It should have a structure that sucks air to the rear side. Since the ejector 81 uses compressed air, the cut covering material W ₁ is sucked smoothly and effectively into the dust box 85, but the operation timing thereof is the cutting of the covering material W ₁ described above. At the time of removal or immediately after that, the solenoid valve 82 can be used to operate for a very short time, for example, 0.5 seconds. In addition, when the suction removal is not performed, the solenoid valve 82 is turned off to interrupt the introduction of the compressed air. Moreover, this ejector 81 can use a commercial item, and since it has a simple structure, it can be easily connected to the suction tube 80, and its suction action can be efficiently exhibited.

Thus, in order to suck and remove the removed covering material W ₁ , the space area inside the tubular operating shaft 26 is skillfully used, and a suction pipe 80 is provided here to effectively suck and remove from the opening. be able to. Accordingly, since the removed covering material W ₁ does not scatter inside the apparatus and can be discharged out of the dust box in the apparatus or outside the apparatus, continuous cutting waste can be removed without interrupting the operation of the apparatus. Can be removed. This suction removal operation does not affect the operation of the shaft 26 during the above-described centering and cutting.

  The ejector 81 provided at the rear or rear portion of the suction pipe 80 is shown in an enlarged cross-sectional view in FIG. 6A (however, it is shown upside down from FIG. 2). As shown in FIG. 6B, a structure may be adopted in which an injection nozzle 91 for compressed air 86 projects from the flow path and the compressed air 86 is injected backward. In addition, the pressure in this piping can be measured with the pressure gauge 92, and the jet pressure of compressed air can be controlled. In addition, various suction mechanisms can be employed.

  The embodiment described above can be variously modified based on the technical idea of the present invention.

  For example, the structure, shape, and the like of each part constituting the wire stripper 50 may be appropriate, and the contact points on the contact surfaces 16a ′ and 16b ′ of the centizer 16 are each one as shown in FIG. Although the number of the contact surfaces is one, a plurality of contact surfaces may be provided, and the contact surfaces may be formed on the same surface as in the conventional example shown in FIG.

  Further, the centizer 16 is not limited to a pair, and three or more centizers 16 may be arranged at substantially equal angles. The covering material can be removed by cutting with the cutter 15 and removing it at the same time without making it into a shoreline.

  In addition, it is desirable that the rear end portion of the wire is inserted into the above-described suction tube 80 for removing and sucking the cutting residue, and the covering material is cut and removed, and the suction removal can be reliably performed. This is not necessarily the case. Further, the arrangement and shape of the suction tube 80 may be variously changed. For example, the wire stripper 50 may be extended to the rear part.

  Such a suction tube is not limited to the wire stripper described in the above-described embodiment, and the effect can be exhibited even when incorporated in a conventional wire stripper.

  Further, the wire stripper described above can be applied to processing of other linear bodies such as an optical fiber cable covered with a covering material, in addition to the processing of the wire W such as a coaxial cable.

It is an expanded sectional view of the principal part which shows the operation | movement accompanying the step of the cutter and centizer by embodiment of this invention with the suction removal operation | movement of a cutting waste. It is sectional drawing containing a rotor and a cutting waste suction removal mechanism equally. It is sectional drawing of a rotor same as the above. FIG. 3 is a left side view of FIG. FIG. 4 is a left side view of FIG. 3. It is sectional drawing (A) and (B) which show the structure of a suction mechanism equally. It is an expanded sectional view of the principal part which shows the operation | movement accompanying the step of a wire stripper and a centrizer. It is a perspective view of the principal part. It is a perspective view of the principal part. (A) is the enlarged view of the principal part of the contact state to the wire of a centizer, (b) is the figure which represented the contact surface on one surface. It is the schematic which shows the operation | movement of a cutter and a centrizer in order of the step. It is a figure which shows the example of a process of the wire by a wire stripper similarly. It is a schematic perspective view of a wire stripper. The rotor is shown, (a) is a side view, and (b) is a front view. The operation of the cutting arm is shown, with (a) being a side view and (b) being a front view. The operation of the centizer is shown, (a) is a side view, and (b) is a front view. It is the schematic which shows the back-and-forth movement mechanism of a rotor same as the above. It is the schematic which shows centering by an example of the centizer mechanism by a prior art example. It is the schematic which shows centering by another example of the centizer mechanism. It is a figure which shows the example of a process of a wire. It is the schematic which shows the centizer mechanism by a prior art example. It is the schematic which shows the mechanism by the other conventional example. It is the schematic which shows the scattering condition of a cutting dregs similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Rotor, 2 ... Main body, 3 ... Cap, 4 ... Ball joint, 4a ... Spring,
5, 14 ... Blade holder, 6 ... Centrizer cam, 6a, 7a ... Connection part,
6b, 8a ... engaging hole, 7 ... cutting cam, 8 ... drive pulley,
9 ... Centrizer arm, 10 ... Cutting arm, 10a ... Engagement groove,
11 ... Bearing holder, 12 ... Pin, 13 ... Blade holder spring,
15 ... Cutter, 15a ... Cutting edge, 16 ... Centrizer,
16a, 16b ... Centrizer member, 16a ', 16b' ... Contact surface, 17 ... Rivet,
18 ... Centrizer spring, 20 ... Rotor cover, 21 ... Joint pin,
22, 23 ... Coil spring, 24 ... Groove, 25, 42 ... Shaft,
26 ... Connecting shaft, 28 ... Insertion hole, 29 ... Parallel pin,
30 ... Ball bearing, 31 ... Bolt, 35, 41 ... Belt, 36 ... Bearing,
38, 51 ... Plate plate, 40, 43 ... Pulley, 44 ... Guide rail, 48 ... Gripper,
50 ... Wire stripper, 64 ... Support base, 65 ... Switch, 66a ... Base,
67 ... motor, 68 ... stepping motor, 69 ... wiring space, 70 ... electronic component,
80 ... suction pipe, 81 ... ejector, 82 ... solenoid valve, 83 ... suction direction,
84 ... pipe, 85 ... dust box, 86 ... compressed air, 87 ... jet hole, 91 ... nozzle,
92 ... Pressure gauge,
W: wire (electric wire), W ₁ , W ₁ ′: coating material, W ₂ : core wire, W ₃ : conductive material, P: pressure,
B: Contact point, C _{1 to} C ₃ ... Cutting position

Claims (3)

A covering having a centering member for centering an object covered with the covering material, and a cutting member provided at a position close to the centering member for cutting and removing at least a part of the covering material In the material removal device,
An operating shaft for operating the centering member and / or the cutting member is formed in a tubular shape,
A suction tube opened near the cutting position by the cutting member is provided inside the tubular operating shaft, and at least a part of the covering material cut and removed by the cutting member is inserted into the suction tube from the opening. A covering material removing apparatus, characterized in that the apparatus is configured to be sucked and removed.   At least a part of the covering material cut and removed is sucked into the suction pipe by the ejector disposed at the rear or rear of the suction pipe and collected by the collecting means or discharged outside the apparatus. The covering material removing apparatus according to claim 1. A plurality of centering members are provided which are urged from the outer peripheral surface of the object toward the center thereof and abut against the outer peripheral surface at a plurality of locations, and the abutting portions are arranged substantially symmetrically. The centering members are arranged at substantially equal angles along the circumferential direction of the outer peripheral surface of the object, and contact with the object with substantially the same urging force,
The cutting member is provided at a position close to the plurality of centering members;
First lever means for operating the plurality of centering members with respect to the object and second lever means for operating the cutting member with respect to the object are in contact with the cam means. ,
By moving the cam means by the tubular actuating shaft, the first lever means and the second lever means are actuated through the center of the cam means and the center of the tubular actuating shaft, respectively. The suction tube is provided,
The covering material removing apparatus according to claim 1 or 2.

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