JP2007053868A - Device for preventing strip residue from scattering in wire processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for preventing a strip residue from scattering in a wire processor which device effectively prevents a strip residue from scattering by rectifying the flow of air blown out of an air outlet. <P>SOLUTION: The air outlet 12a for blowing out air is opened downward. A strip residue 1b is removed from cutters 9A, 9B by air blown out of the air outlet 12a. A strip residue collecting cover body 16 for collecting and guiding a strip residue 1b is so disposed that the lower part of a covering stripped by the pair of cutters 9A, 9B is encircled therewith. The strip residue collecting cover body 16 is provided with a mesh portion 16a for letting out air. A cutter cover body 15 is provided so that it can be freely moved up and down. The cutter cover body is extended across both the cutting edges 10 when the cutters 9A, 9B are opened and at a distance from each other and covers both the cutters 9A, 9B with a gap in-between. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a strip splattering prevention device in an electric wire processing machine that strips a covering portion of an end portion of an electric wire.

  Conventionally, there is an electric wire processing machine for stripping the covering portion of the end of the wire with a pair of cutters in order to perform processing such as terminal crimping, and the stripped covering portion (hereinafter referred to as “strip residue”) is applied to the cutter. When attached, there is a possibility that the subsequent stripping process of the covering portion may not be performed smoothly. Therefore, there is a structure in which air is blown to the strip residue and the strip residue is removed from the cutter (for example, see Patent Document 1). .)

  That is, the end portion of the electric wire is inserted between the pair of cutters in the open state, and then the covering portion on one end side of the electric wire is cut by the blade portions of both cutters by the closing operation of the pair of cutters, and the cut state The electric wire is relatively moved to the other end side along the longitudinal direction. Thereby, the coating | coated part of one end side is stripped from the cutting position of a cutter among the coating | coated parts of an electric wire.

  Then, after both cutters are opened, air is blown downward from the vertical direction toward the side of the strip from the air outlet provided on the side where the strip is generated, and the strip is blown off from the cutter. The structure is to be removed.

No. 7-27770

  However, in the above-described conventional strip waste removing device, when a strip waste collecting cover body is provided to surround the lower part of the stripping area of the covering portion by the pair of cutters and guide the collection of the strip waste, the air outlet The air blown from the air is reflected in the strip recovery cover body and causes turbulent flow such as backflow of air, and the flow of the air may cause the strip residue to be scattered outside the strip recovery cover body.

  Therefore, in view of these problems, the present invention provides a strip waste scattering prevention device in an electric wire processing machine that effectively prevents the dispersion of strip waste by rectifying the flow of air blown from an air outlet. Objective.

  The technical means for solving the above-mentioned problem is that the wire end portion is covered by moving the wire and the cutter relatively with the covering portion of the wire end portion being cut by a pair of cutter blade portions. In the strip waste scattering prevention device in the electric wire processing machine that blows off the stripped portion, blows air to the strip waste and removes it from the cutter, and collects it, the air outlet for blowing out the air is opened downward. A strip residue collecting cover body for collecting and guiding the strip residue removed by the air blown out from the air outlet is disposed below the stripping area of the covering portion by the pair of cutters. In addition, the strip waste collecting cover body is provided with a ventilation portion that allows the blown air to escape and the strip waste cannot pass through. That.

  Further, the pair of cutters can be moved up and down in the vertical direction, and in an open posture in which both cutters are spaced apart from each other, before the air is blown out from the air outlet, the pair of cutters are lowered and the both blade portions of both cutters It is good also as a structure where the cutter part cover body which has the length of the up-down direction ranging between and covers at least the said strip waste generation | occurrence | production side in both cutters so that raising / lowering operation is possible is provided.

  As described above, according to the strip splattering prevention device in the electric wire processing machine of the present invention, the strip squirt removed by the air blown out from the air blast opening is provided with the air blow-out opening for blowing out air downward. The strip waste collection cover body for collecting and guiding the gas is disposed so as to surround the lower part of the stripping area of the covering portion by the pair of cutters, and the air blown to the strip waste collection cover body is released and the strip waste cannot pass through. Since the air vents are provided in the structure, the air blown out from the air outlet is smoothly released through the air vents provided in the strip-cass recovery cover body, so the air flow can be rectified. It is possible to effectively prevent strip splatter scattering due to air reflection.

  In addition, the pair of cutters can be moved up and down in the vertical direction, and in an open posture in which both cutters are spaced apart from each other, before the air is blown out from the air outlet, the pair of cutters are lowered and moved up and down between the blades of both cutters. If the cutter part cover body that has a length in the direction and that covers at least the strip waste generation side of both cutters is provided so as to be movable up and down, the cutter part cover body covers one side of the strip waste. Therefore, it is possible to effectively prevent the strip residue from being scattered when the strip residue adhering to the cutter is blown off by air.

  Moreover, in the strip casks having a length longer than the distance between the cutter and the cutter unit cover body, the strip scum is pushed downward by the cutter unit cover body during the lowering operation of the cutter unit cover so that the efficiency is improved. There is also an advantage that can be dropped.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 11 show a cutter used for cutting an electric wire 1 and stripping a covering portion 1a in a both-end terminal crimping apparatus as an example of an electric wire processing machine. The unit 2 portion is shown, and is disposed between the front clamp 3 and the rear clamp 4 disposed along the electric wire supply line. The clamps 3 and 4 are configured to be able to grip and release the electric wire 1 supplied along the electric wire supply line, and to be movable and movable along the three-dimensional direction.

  The cutter unit 2 includes a guide rail member 6 having a U-shape in a plan view that is erected on the apparatus base 5 so as to extend in the vertical direction, and is slidably operated in a vertical direction along the guide rail member 6. Cutter mounting bases 7A and 7B are supported. A ball screw (not shown) is rotatably supported in the recess of the cutter unit 2 with a vertical axis, and the upper cutter is mounted on the right screw region provided on the upper portion of the ball screw. The base part of the base 7A is screwed, and the base part of the lower cutter mounting base 7B is screwed into the left screw region provided at the lower part of the ball screw.

  The lower end of the ball screw is linked to a servo motor via a power transmission mechanism such as a timing belt. When the ball screw is rotated forward and backward by forward and reverse rotation of the servo motor, each cutter mounting base 7A, 7B is comprised so that it may mutually approach / separate.

  Furthermore, cutters 9A and 9B are attached and fixed to the cutter mounts 7A and 7B via cutter support blocks 8A and 8B, respectively. In the present embodiment, as shown in the figure, each cutter 9A, 9B has a structure having a central portion and blade portions 10 on both sides thereof, and the central blade portion 10 is for cutting, The blade portions 10 on both sides are for stripping the coating. The upper and lower cutters 9A and 9B are configured to be opened and closed by an approach / separation operation of the cutter mounts 7A and 7B.

  In addition, an air supply hose 11 to which compressed air is supplied at a predetermined timing is connected to an upper portion of the upper cutter support block 8A, and compressed air supplied through the air supply hose 11 is supplied to each cutter 9A, 9B. A branched air supply path 12 is formed in the cutter support block 8A to guide each blade portion 10 position. In other words, in the present embodiment, in the cutter support block 8A, the portions facing the front side surface and the rear side surface of the cutter 9A respectively correspond to the center portion and the blade portions 10, 10, 10 on both sides thereof in the vertical direction. The air supply passages 12 are formed in the structure. The air outlet 12a at the lower end of each air supply path 12 is structured to open downward.

  Furthermore, a cover lifting / lowering cylinder 13 made of an air cylinder or the like as an example of an actuator is attached and fixed to the cutter support block 8A. The cover body lifting / lowering cylinder 13 includes a pair of cylinder rods 13a so that the cover body lifting / lowering operation can be freely performed in a downward direction in a non-rotating state. An annular cutter portion is provided at the lower end of the cylinder rods 13a via a support bracket 14. A cover body 15 is attached. Here, the cutter portion cover body 15 can be raised and lowered freely by the expansion and contraction operation of the cover body raising / lowering cylinder 13.

  As shown in FIG. 9, the cutter portion cover body 15 is formed in an annular shape having a rectangular shape in plan view so as to cover the periphery of both cutters 9A and 9B with an appropriate interval. As shown, the length of the cutters 9 </ b> A and 9 </ b> B is appropriately long in the vertical direction so as to extend between the two blade portions 10 in the open posture. When both cutters 9A and 9B are opened after the stripping process of the covering portion 1a of the electric wire 1 and the cutter portion cover body 15 is lowered by the operation of the cover lifting / lowering cylinder 13, both cutters 9A , 9B is covered with a cutter portion cover body 15 between the blade portions 10.

  Further, a strip waste collection cover body 16 is disposed on the apparatus base 5 to surround the lower part of the stripping area of the covering portion 1a by both the cutters 9A and 9B and to guide the collection of the strip waste 1b. The strip-cass collection cover body 16 is formed in a cylindrical shape having an axial center in the vertical direction. As shown in FIGS. 1, 2, and 10, the strip-cass collection cover body 16 has a front side surface and a rear side surface. The mesh portion 16a formed in a mesh shape having an appropriate area as a ventilation portion through which the strip cass 1b cannot pass is integrally formed or attached. The guide rail member 6 or the like may be included as a part of the constituent members of the strip-cass recovery cover body 16 that surrounds the lower part of the stripping area of the covering portion 1a.

  Further, a strip waste collection case 17 for collecting the strip waste 1b guided downward through the chute portion 16b of the strip waste collection cover body 16 is disposed below the apparatus base 5.

  In addition, as shown in FIG. 10, the lower cutter support block 8B in the present embodiment has a structure in which a portion for fixing the cutter 9B in a sandwiched manner has guide inclined surfaces 8a and 8b that gradually become thinner upward. It is said that.

  When the cutter unit 2 performs the cutting process of the electric wire 1 and the stripping process of the covering portion 1a, the initial cutting posture of both the cutters 9A and 9B as shown in FIG. 2 and FIG. Then, the electric wire 1 supplied for a predetermined length is gripped by both clamps 3 and 4, and in this state, both cutters 9A and 9B are closed by rotating the ball screw, and the electric wire 1 is cut by the central blade portion 10.

  Thereafter, the cutters 9A and 9B are opened and returned to the initial open position, and the electric wire 1 gripped by the clamps 3 and 4 is moved and operated to the positions corresponding to the respective blade portions 10 and 10 on the different sides. After that, the electric wire 1 held by the front clamp 3 and the electric wire 1 held by the rear clamp 4 are moved forward in the directions of the cutters 9A and 9B by a distance corresponding to the strip length.

  Then, both cutters 9A and 9B are operated to approach each other in a state in which each electric wire 1 is moved and operated by a distance corresponding to the strip length, and as shown in FIG. Cut into the covering portion 1a at the end of each electric wire 1 respectively. Then, when each pair of cutters 9A and 9B is cut into the covering portion 1a and each wire 1 is retracted along its longitudinal direction, as shown in FIG. 5, at one end portion of each wire 1 A state where the covering portions 1a are peeled off is obtained.

  In this case, the strip residue 1b may adhere to the blade portions 10 and 10 in a biting state without the strip residue 1b naturally falling downward.

  Then, after the covering portion 1a is peeled off, as shown in FIGS. 6 and 7, both the cutters 9A and 9B are opened, and an open posture for the strip squirt blowing process separated from each other by a predetermined distance is obtained.

  In this state, the cylinder rod 13a of the cover body raising / lowering cylinder 13 is advanced, and the cutter portion cover body 15 is lowered by a predetermined distance as shown in FIGS. In the lowered position of the cutter portion cover body 15, the periphery between the two blade portions 10 in both cutters 9A and 9B is covered over the entire circumference.

  In this state, compressed air is supplied through the air supply hose 11, and the supplied compressed air blows downward from the air outlets 12a at the lower end toward the strip casks 1b through the air supply passages 12 of the cutter support block 8A. Is done. By blowing this compressed air, the strip residue 1b adhering to the blade portion 10 of each cutter 9A, 9B is blown downward and removed from the cutters 9A, 9B.

  The strip residue 1b blown downward is guided into the lower strip residue collection cover body 16 and then recovered into the strip residue collection case 17 through the chute 16b.

  Thereafter, the cutters 9A and 9B and the cover lifting / lowering cylinder 13 are returned to the initial state as shown in FIG.

  After stripping the covering portion, the electric wire 1 held by the front clamp 3 is moved to the front terminal crimping unit position to crimp the terminal, and then the front clamp 3 is returned to the initial position and the rear clamp 4 is moved. The electric wire 1 gripped by is moved to the rear terminal crimping unit position, the terminal is crimped, and after the processed harness is discharged to a predetermined position, the rear clamp 4 is returned to the initial position.

  By repeating the above operation, harnesses having terminals bonded to both ends are sequentially manufactured.

  The present embodiment is configured as described above. When the strip residue 1b attached to the blade portions 10 of the cutters 9A and 9B is blown off, the cutter portion cover body 15 extends between the both blade portions 10 of the cutters 9A and 9B over the entire circumference. Since the structure is such that the compressed air is blown toward the strip casks 1b in the state covered with the cutters 9A and 9B, the periphery of the strip casks 1b attached to the cutters 9A and 9B is covered with the cutter portion cover body 15, Scattering to the surroundings can be effectively prevented by the cutter portion cover body 15, and can be stably guided to fall downward.

  Further, since the mesh portions 16a are respectively provided on both side surfaces of the strip waste collecting cover body 16 disposed so as to surround the lower portion of the strip scrap 1b stripped by the cutters 9A and 9B, the mesh portions 16a are provided downward through the air outlet 12a. Since the compressed air blown out to the air is smoothly released to the outside through the mesh portions 16a of the strip waste collecting cover body 16, the flow of the air can be rectified, and the strip waste 1b resulting from the air reflection as described above can be achieved. Can be effectively prevented.

  Further, the portion of the cutter support block 8B that fixes the cutter 9B in a sandwiched manner has guide inclined surfaces 8a and 8b that gradually become thinner in the upward direction. The waste collection cover body 16 can be effectively guided.

  Further, when the stripping length of the covering portion 1a is longer than the distance between the cutters 9A and 9B and the cutter portion cover body 15, the cutter portion cover body 15 is lowered as shown in FIG. Along with the operation, the cutter part cover body 15 interferes with the strip residue 1b, and the strip residue 1b is pushed downward by the cutter part cover body 15 so as to drop, or the blade part 10 of the cutters 9A and 9B. There is also an advantage that the effect of weakening the adhesive force due to biting in can be exerted, and the strip residue 1b can be efficiently dropped by blowing compressed air thereafter.

  Furthermore, since the cutter part cover body 15 is formed in an annular shape over the entire circumference, there is an advantage that the rigidity of the cutter part cover body 15 can be sufficiently exhibited.

  In addition, in the said embodiment, although it is set as the structure where the cutter part cover body 15 was formed in cyclic | annular form, if it is the structure which covers at least the strip waste 1b generation | occurrence | production side in cutter 9A, 9B, the dispersion of the strip waste 1b will be carried out. It can be effectively prevented. Further, the vertical length of the cutter portion cover body 15 only needs to have a length extending at least between both blade portions 10 of both cutters 9A and 9B. By configuring the vertical length to be longer, the lower strip is formed. It becomes possible to more stably guide the strip residue 1b to fall into the residue collection cover body 16.

  Moreover, although the structure which provided the mesh part 16a in the strip waste collection | recovery cover body 16 on both sides | surfaces is shown, it is good also as a structure provided in only one side or another surface, and the shape of the mesh part 16a, a magnitude | size, and arrangement position Etc. may be appropriately determined as necessary. Furthermore, the structure is not limited to the mesh portion 16a, and other ventilation portions may be used.

  Furthermore, the height in the vertical direction of the strip-cass collection cover body 16 may be determined as appropriate, and the strip-cass collection cover body 16 itself may serve as the function of the strip-cass collection case 17.

  Moreover, although the structure which provided the air supply path 12 of the up-down direction was each provided in the both surfaces side of cutter 9A corresponding to each blade part 10 of cutter 9A, 9B, the blade part 10 part to which strip casks 1b adhere is shown. It is good also as a structure which provides the air supply path 12 only correspondingly.

  Furthermore, although the structure which peels the coating | coated part 1a of the electric wire 1 of the front side and the rear side with the pair of cutters 9A and 9B is shown, the structure which performs the cutting | disconnection and skinning of the electric wire 1 with a respectively different pair of cutters. An electric wire processing machine may be sufficient.

  Moreover, although the structure which moves the electric wire 1 cut by cutter 9A, 9B so that it may be pulled apart along the longitudinal direction and peels the coating | coated part 1a is shown, it follows the longitudinal direction of the cut electric wire 1 Then, the electric wire processing machine having a structure in which the covering portion is peeled off by moving the cutter so as to be separated may be used.

It is a schematic front view of the strip splattering prevention device concerning the embodiment of the present invention. It is the same part section side view. It is same principal part operation | movement explanatory drawing. It is same principal part operation | movement explanatory drawing. It is same principal part operation | movement explanatory drawing. It is same principal part operation | movement explanatory drawing. It is same principal part operation | movement explanatory drawing. It is same principal part operation | movement explanatory drawing. It is the IX-IX sectional view taken on the line of FIG. It is same principal part operation | movement explanatory drawing. It is the operation | movement explanatory drawing of the principal part in another coating peeling example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric wire 1a Covering part 1b Strip cas 2 Cutter unit 7A, 7B Cutter mounting base 8A, 8B Cutter support block 9A, 9B Cutter 10 Blade part 11 Air supply hose 12 Air supply path 12a Air outlet 13 Cover body raising / lowering cylinder 15 Cutter Part cover body 16 strip waste collection cover body 16a mesh part

Claims (2)

With the covering portion of the wire end cut by the pair of cutter blades, the wire and the cutter are moved relatively to peel off the covering portion of the wire end, and the strip strips removed In the strip waste scattering prevention device in the wire processing machine to be removed from the cutter by blowing air to the
An air outlet for blowing out the air is opened downward, and a strip waste collecting cover body for collecting and guiding the strip waste removed by the air blown out from the air outlet is formed by the pair of cutters. An electric wire processing machine which is disposed so as to surround a lower part of a stripping area of the covering portion, and is provided with a ventilation portion through which the blown air is escaped and the strip waste cannot pass through the strip waste collecting cover body. Strip splattering prevention device. In the strip waste scattering prevention device in the electric wire processing machine according to claim 1,
The pair of cutters can be moved up and down with respect to each other, and in an open posture in which both cutters are separated from each other, before the air is blown out from the air outlet, the pair of cutters are lowered to extend between the blades of both cutters. An apparatus for preventing strip residue scattering in an electric wire processing machine, wherein a cutter portion cover body having a vertical length and covering at least the strip residue generation side of both cutters is provided so as to be movable up and down.

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