JP2005527175A - Cable guide for cable sheath remover - Google Patents

Abstract

The invention is a sheath removal device with a mainly pipe-shaped cable guide, the inner diameter of which can be adjusted steplessly and can therefore be adapted to various cable diameters.

Description

  The present invention relates to a cable guide for a cable sheath removing machine (cable stripper).

  Cable stripping machines (cable strippers) are often designed as continuous-run, endless cable processing machines-with guides for the cables to be processed-before, after and between the drive and cable processing equipment. . This guide is usually made of pipe and partly with a funnel-shaped entry.

  In many cases these pipes can be swiveled (long guide pipes in PS 9500 Powerstrip), or can be displaced (short guide pipes in PS 9500 Powerstrip) or fixed so that the cable strips can be moved away from or away from the machine Either it is fed in the direction, or the guide can be moved away from its functional position, or the guide is always located at the same place.

  All of the conventional cable guides are designed for specific cable cutting cutters and therefore have to be replaced manually.

  However, since manual replacement is relatively time consuming and requires some skill, the goal of the present invention is to reduce manual labor of the well-known cable guide.

  A short solution to this problem is the use of a turret head. Several pipes of various inner diameters fixed there are placed in the working position by rotating the turret head as necessary. Such a solution is planned by the same applicant as PS 9500 Powerstrip before the first transport device.

  Such a cable-guided turret head was published in Applicant's stripper MP 8015. However, the cable guides used there are not used for endless cable processing, but are used for insulation removal devices in which only the end portions of individual cable pieces are stripped.

  The short, previously published solutions listed above have the following disadvantages compared to the original solutions for replaceable guide pipes. That is, since the rotating shaft of the turret has to be placed outside the center of the cable, the size of the side portion increases. The cable must be removed from the guide during the turret rotation process. There should be no cable advance at the same time. If the guide pipe is selected by mistake, both the original solution and the turret head are cumbersome. This is because the cable needs to be completely removed again before replacing the guide. This takes time.

  Also, the known solutions can only be used within the existing guide pipe diameter frame. Therefore, the cable diameter in the middle of the stages of the individual guide pipes is harder to guide than the cable diameter that exactly fits the existing stage.

  The current technology allows other structures with guides that can be set:

  U.S. Pat. No. 4,489,490 describes a cable cutting / insulating manual machine with a prism base for centering the cable. The prism mount is faced with a height-adjustable counter holder that presses the cable against the prism mount and centers the side in one direction. In this structure, the centering guide is not possible because the cable is deep or shallow depending on the cable diameter and is in the prism base.

  U.S. Pat. No. 4,181,47 describes a cable insulation removal device having a guide roll which is twisted in total, two in front and behind. This roll, when viewed in cross-section, has a square guide channel (see Figure 3), but each is open on two sides, so the cable cannot be completely guided and supported completely. .

  U.S. Pat. No. 5,997,286 describes a two-sided guide. Here, two rectangular guide strips can be moved relative to each other with a screw spindle. This structure also cannot provide an overall guide, and the cable cannot be continuously centered. This is because the center of the cable moves up or down depending on the cable diameter.

  In US Pat. No. 5820008, FIGS. 7 and 8 describe a guide which performs the movement of two grips (228 and 248) controlled by a taper and having a guide surface. Although this allows the grip to be closed to a small cable diameter, the center of the cable is similarly shifted according to the cable diameter. Also, this structure lacks a true concentric guide, similar to those listed above. This is because a symmetrical platform surface does not occur in the cable.

  Accordingly, an object of the present invention is to facilitate the operation of the guide in relation to the change in the cable diameter. A second problem to be solved at the same time is to enable stepless adaptation to different cable diameters.

  This attempts to eliminate the disadvantages of the original method, the method with the turret head.

  The solution to the two problems lies in at least one pipe whose inner diameter can change at least approximately symmetrically with the longitudinal axis of the pipe by changing the pipe size.

  Such a change in size is possible, for example, by a segment structure in which the segments are adjusted to each other and the internal pipe diameter changes steplessly. It is also possible to make the pipe wall a flexible structure and widen or shrink it. For example, the pipe has a spring structure with a spiral cross section, and its inner diameter can be set by an external force.

  In a specific specification of the invention, the segments are made of a long, rigid plate and are guided relative to each other. Compared to the centering grip on the camera iris diaphragm, or the applicant's PS 9500 Powerstrip rotating box, or the centering grip on model MP 8015 or JS 8300. The rotating box and the JS 8300 centering grip are stationary, while the MP 8015 model grip is rotating with the cutter.

  The two specifications combine to tie the spiral spring segment to the hard segment plate, so that the segment plates seal each other.

  The advantage of the segment plate method is its strong and rigid structure. On the other hand, the advantage of the spiral spring / spiral spring segment structure is that no mechanical labor is required.

  Sealing pipe segments that slide together is advantageous for certain cables (especially fine cores). Such trapping of the core wire can be avoided.

  This other aspect of the invention is where the adjustment is made with a motor—especially with a computer—and the operator or centering control controller sets the required pipe bore. Particularly advantageous is the specification in which the correct diameter is automatically set by machine control, whether the cable information is recognized by centering or input by programming.

  Other aspects and variations of the invention are listed in other dependent claims.

  The description of the figure and the symbol list (description of symbols) are united and supplemented to each other in the fully public sense by the rest of the description and the claims.

  The same symbol represents the same part. Although the numbers are the same, different index symbols represent parts that have the same function or different roles. The individual drawings are described in connection with others, are merely examples, and are not necessarily drawn to scale. The drawings are merely illustrative, and the description of the drawings does not limit the invention.

  Figure 1 is a disassembled view showing the structure of the universal guide. Starting from the cover 3, a guide segment body 4 consisting of several parts supported by a guide holder 1 is shown. Here, it can be seen that the guide segment 17 is opened and closed through the cylinder pins 12 and 13 by the guide slot 18 of the cover 3. Each of the guide segments 17 is connected to a portion belonging to the guide segment body 4 and, if necessary, made integrally therewith. Similarly, the cylinder pins 12 and 13 are firmly connected to each portion of the guide segment body 4. The parts of the guide segment body 4 support each other or slide on each other during adjustment.

  The cylinder head bolt 11 fixes the cover 3 with the guide holder 1 and the scalar cover 5 connected to the covering pipe 19. The covering pipe 19 and / or the cover 3 or the guide segment 17 can be provided with a conical funnel-shaped entry at the end, for example.

  The guide holder 1 has a curved pulley 2 attached to a slide bearing 6, and a scalar cover 5 is placed on the slide holder 6 so as to be adjustable in the axial direction by a nut, for example, a roulette nut 7. The scalar cover 5 allows the user to adjust the selected pipe diameter. A pressure part 8 with a spring which is stopped by a hexagon nut 14 fixes the scalar cover 5 with respect to the curve pulley 2.

  FIG. 1a shows the assembled universal guide according to the present invention of FIG.

  FIG. 2 shows an embodiment of a universal guide characterized by a particularly short guide segment 17a. This is fixed in position as required or, like the well-known vertical movable guide, not shown in detail, but can be moved vertically back and forth of the cutter head (with PS 9500 Powerstrip) Has been. However, it does not have a coated pipe as in FIG.

  FIG. 2a is a assembled view of the embodiment of FIG.

  FIG. 3 shows a variant of FIG. 1 in which the guide segment 17b is made particularly long so that the entire guide head can be swiveled through the deflecting body 16 which acts as a support. As is well known (PS Powerstrip 9500 so-called pipe), the deflecting body 16 is controlled by a suitable mechanical device or by motor, air and electromagnetic drive, and the vertical axis of the universal guide is once on the cable axis. , It is driven to turn in the oblique direction in a swiveled state. The deflecting body is connected to the extended support portion 21 of the scalar cover 5 through the support plate 20 and the cylinder head bolt 15.

  FIG. 3a shows the assembled structure of FIG.

  FIG. 4 shows details of the short guide segment 17a together with the guide segment body 4a.

  FIG. 5 shows a long guide segment 17b together with its guide segment body 4b.

  The operation of the guide segments 17, 17a, 17b is carried out in the same way as the applicant's clamping or centering grip guide segment operation of the machine mentioned in the introduction, eg from the applicant's US Pat. I can know. The expert can learn the details of operation, such as drive, spring recoil, and its variations from the level of technology without problems. Accordingly, the contents of the above-cited US patent specifications are incorporated herein by reference. Therefore, the pins 12 and 13 shown in the figure can be replaced with, for example, the lever arms (31 and 32) shown in FIG. Similarly, a solution using, for example, the pin (11) and the notch groove (14) of FIGS.

  A variation of the invention based on other principles is illustrated in FIG. Here, the spring segments 22 bite into each other, enclose a variable pipe space, the diameter is reduced by the external pressure (arrow A), and the segment 22 is expanded again to a larger diameter by the pressure retreat. The pressure can be applied by well-known rods, spindles or eccentric cams not individually shown in detail.

  FIG. 7 is based on a slightly different principle. Here, the only elongated spiral spring 23 is used as a guide pipe. The spring 23 tends to open to the maximum inner diameter. When pressure is applied from the outside (arrow B), the end in the spiral spring 23 moves (or winds) along the spring wall in the closing direction, so that the inner diameter decreases.

  Other variations are illustrated symbolically in FIG. Here, the wide spring 24 is a guide pipe by the winding principle. One end of the spring 25 communicates with the spring end 26 in a comb shape through the slot. Both ends are comb-shaped. As a result, the diameter of the guide can be set by the pulling force (arrow C) of the spring ends 25 and 26 over a wide portion. If the center of the guide is always kept in the same place, the pulling forces at the spring ends 25, 26 are symmetrical and the diameter reduction must be further compensated by lateral movement of the entire structure (arrow D).

  By studying these examples, experts automatically come up with various examples. Details are not discussed.

  FIG. 9 shows another embodiment of a radially adjustable cable guide. It has three guide rolls adjustable in the radial direction of the arrow E and a guide plate 29 associated therewith. The guide plate 29 is mainly made of elastic spring steel, and is connected to, for example, a guide roll by welding or rivet. The bending radius R of the guide plate 29 is substantially the same as the half diameter of the smallest receiving cable 27. Therefore, as the cable diameter increases, the guide plate 29 can be adjusted to the outer diameter of the cable with the radius R. The unfixed end of the guide plate 29 is wound or bent to avoid scratches due to the corners of the cable surface.

  Overview 10 and disassembly 11 show other adjustable cable guides. Here, the guide segment 34 is bearing on the pivot 35 at both ends. Each guide segment has a tooth segment 33 with teeth. The teeth of the tooth segment 33 are rotatably bearing on the casing 30 from the inside. A pin 38 is radially fixed to the tooth ring 31, and the pin is movable at a cutout portion of the casing 30. Two coaxial adjustment bolts 39 pass through the casing, with their unfixed ends abutting on each side of the pin 38. When the adjusting bolt 39 is moved in the axial direction, the tooth ring 31 is rotated by the pin 38. This drives a guide segment 34 that is moveably bearing through the tooth segment 33. The size of the cutout 36 of the casing 30 determines the maximum rotation angle and determines the minimum possible maximum radius of the cable guide. The safety bolt 40 is used to fix the adjustment bolt 39. All the guide segments 34 are attached to the covering pipe 37. A cover 32 that closes the casing 30 is fixed by an internal hexagon bolt 41.

  The following symbol list is part of the description. The structures, devices, and details recited in the claims are also considered to be published within the description.

Explanation of symbols

1 Guide holder, 2 Curve pulley, 3 Cover, 4a, b Guide segment body, 5 SCARA cover, 6 Slide bearing, 7 Roulette nut, 8 Spring pressure component, 9 Screw pin, 10 Cylinder head bolt, 11 Cylinder head bolt, 12 Cylinder Pin, 13 Cylinder pin, 14 Hexagon nut, 15 Cylinder head bolt, 16 Deflector, 17a, b Guide segment, 18 Guide slot, 19 Covered pipe, 20 Support plate, 21 Support component, 22 Spring segment, 23 Spiral spring , 24 Wide spring, 25 One spring end, 26 Other spring end, 27 Cable, 28 Adjustable guide roll, 29 Guide plate, 30 Casing, 31 Tooth ring, 32 Cover, 33 Tooth segment, 34 Guide segment 35 pipets, 36 cutouts, 37 covered pipes, 38 pins, 39 adjustment bolts, 40 fixing bolts, 41 fixing bolts, 42 internal hexagon bolts.

Claims (16)

  A cable processing apparatus having a pipe-shaped cable guide, wherein the cable guide includes at least one pipe, and the inner diameter of the pipe can be changed at least approximately symmetrically with respect to the longitudinal axis of the pipe by changing the size of the pipe.   2. The cable processing device according to claim 1, wherein the pipe is a segment structure and the segments (17, 17a, 17b) can be adjusted relative to each other such that the internal pipe diameter changes-mainly in a stepless manner.   3. A cable processing device according to claim 1 or 2, wherein the segments are made of rectangular, rigid plates, which, like the camera iris diaphragm, are adjustable and guided with respect to one another.   The cable processing apparatus according to claim 1, wherein the pipe wall is flexible and can be expanded or contracted.   5. The cable processing apparatus according to claim 4, wherein the pipe has a spiral spring structure in cross section, and the spring has an inner diameter that can be set by an external force.   The pipe is made of a helical spring body composed of a rectangular helical spring (23) or a helical spring segment (22), the spring body having a different diameter, the helical spring (23) or the helical spring segment (22). The end or the inner end of the inner end of the adjacent spiral spring segment (22) can be used to adjust or move along the spiral spring segment. Cable processing equipment.   7. Cable processing apparatus according to claim 6, wherein the helical springs (-segments) (22, 23) are conventionally made of spring steel or plastic, in particular fiber reinforced plastic.   Cable processing apparatus according to any one of the preceding claims, wherein the length of the segment (17) is several times longer than the cable diameter that can be set.   A combination according to any one of the preceding claims, wherein the two specifications are combined so that the helical spring segment (22) is associated with a rigid segment plate (17), so that the segment plate (17) seals the other together. Cable processing equipment.   Cable processing device according to any one of the preceding claims, comprising at least three segments (17, 17a, 17b, 22).   Cable processing apparatus according to any one of the preceding claims, wherein the segment has a structure of a guide plate (29) associated with a guide roll (28) that can be adjusted in the radial direction.   The cable processing device according to any one of the preceding claims, wherein the adjustable guide portion is preceded by a funnel-shaped, predominantly tapered and narrow entry portion.   Cable processing device according to any one of the preceding claims, wherein the adjustment is operated with a motor, in particular with a computer, and the operator or centering control controller sets the required pipe inner diameter.   Cable according to any one of the preceding claims, wherein the cable information is controlled and can be used to know the cable information-either by centering or by programming-the correct diameter can be set automatically Processing equipment.   Cable processing apparatus according to any one of the preceding claims, wherein the set of segments and / or elastic pipe wall segments or pipe wall elements is performed by applying hydraulic or pneumatic actuators or pressure. Any of the preceding claims, wherein the set of movable and bearing guide segments (34) is effected by rotation of the tooth ring (31) through the teeth that bite in or through the tooth segments (33) of the guide segment (34). The cable processing apparatus according to item 1.

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