FR2574225A1 - IMPROVEMENTS ON MACHINES TO STRETCH THE CABLES, IN PARTICULAR FOR THEIR RECOVERY - Google Patents

Abstract

THE MACHINE FOR STRIPPING THE CABLES, ESPECIALLY FOR THEIR RECOVERY, IS OF THE TYPE INCLUDING TWO 1-2 WHEELS, THE AXES OF WHICH ARE PARALLEL AND WITH VARIABLE SPACING, SOLIDARITY OF DRIVING MEANS TO TURN IN THE OPPOSITE DIRECTION SO AS TO DRIVE A CABLE C CLAMP BETWEEN THEY ARE THE CABLE CIRCULATING BETWEEN A GUIDE 3 LOCATED UPSTREAM OF THE WHEELS AND A CUTTING DEVICE 4 LOCATED DOWNSTREAM AND INTENDED TO CUT THE CABLE. IN PARTICULAR, IT INCLUDES A DEVICE ENSURING POSITIVE GUIDING OF THE CABLE ON THE DRIVE AND CUTTING AXLES.

Description

The present invention relates to improvements to

  cable stripping machines, in particular for their recovery.

  It is recalled that the electric cables, telephone, are composed of several conductors, insulating material and various products providing mechanical protection or sealing. Some constituent materials said cablespresent a value

  market, it is also interesting to be able to

  when the cables are scrapped. To this end, cable stripping machines have been developed and are intended to separate by one or more simultaneous actions the section at one or more points of the section of the cable to allow

  his stripping. The applicant knows, for example, the machine for

  nude which was the subject of the French patent 2,346,885 that it ex-

  ploite. This machine comprises at least two knobs integral with

  means of driving to turn in the opposite direction so as to en-

  dragging the cable clamped between them, the cable thus circulating between a guide located upstream of the wheels and a device located downstream for splitting the cable. The aforementioned knobs are mounted

  in bearings so that their axes always remain

  They are parallel to each other but are spaced apart to adapt to cables of different cross-sections. Thus according to the possibilities, the upper wheel is fixed and the lower movable wheel, the upper wheel is movable and the wheel

lower fixed.

  In operation of the aforementioned patent, it was found that if the machine worked perfectly for stripping cables with a cross section greater than about 15 Millimeters, cons

  for cables of smaller section, which are an important part of

  the recovery cables, they would tend to move away from the cutting plane and rip under the tightening

  driving wheels to the cutting tool or tools.

  This detrimental disadvantage is encountered in all existing equipment on the market, and in practice the small cables

  diameter are not stripped and are abandoned. Interactions

  maintenance, control over the machines are indeed too expensive and in any case contrary to the productivity required in -2-

this operation.

  The object of the invention was therefore to solve the problem in a simple way by making universal the use of the stripping machine for all types of cables and all sections, including very small sections. The solution provided by the invention is particularly functional and easy to implement and will allow the treatment of very large quantities

  abandonment of cables, and the recovery of tons of

  materials whose market value is not negligible, for example copper, aluminum, lead sheaths,

  For this purpose and according to a first characteristic of the in-

  vention, the cable stripping machine is of the type comprising

  two knobs, the axes of which are parallel and with

  riable, integral drive means for turning in the opposite direction so as to cause a cable pinched between them, said cable flowing between a guide located upstream of the wheels and a

  downstream cutting device for splitting the cable,

  said machine being characterized in that it comprises a device ensuring a positive guide of the cables on the axes of training

and cutting.

  More particularly, said device comprises organs

  guideways located laterally and on both sides of the axes of

  cable routing and cutting, said members being synchronized

  on the move to ensure proper spacing according to

  of the cable section to be treated ..

  According to another characteristic of the invention, the displacement

  The guiding members are synchronized with the movement of the wheels. These and other features will stand out well

from the rest of the description.

  For fixing the object of the invention illustrated in a non-limiting manner to the figures of the drawings o: FIG. 1 is a schematic view illustrating

  the main ways of a stripping machine.

  FIG. 2 is a schematic front view of FIG. 1 illustrating in particular the connection for trimming.

  spacing and simultaneous approximation of the wheels between them.

  FIG. 3 is a diagrammatic front view illustrating the stripping machine with, in particular, the guiding device.

side edge of the cables.

  Figure 4 is a front view similar to Figure 3 with a spacing of the wheels and the lateral guide device

of cable.

  FIG. 5 is a schematic plan view

  illustrating the lateral guide device.

  FIGS. 6 and 7 are views of faces illustrating on a large scale the principal means of the machine in a setting

  nonlimiting work of the invention.

  In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in FIGS.

drawings.

  The machine shown comprises two knobs (1) (2) in connection with drive devices for rotating in opposite directions about their axes which are parallel and horizontal. The

  wheel (1) is arranged above the wheel (2), and their

  outer cylindrical face has asperities such as teeth,

  grooves, or imprints of any kind, to increase its adhesion

  rence on both sides of a cable (c) engaged along the arrow F between said wheels. These wheels designated in their entirety each comprise a pair of disks (1,1l) (22,22) contiguous

  and notched peripherally, mounted on the axis. A guide (3), in

  Me de V for example, is arranged upstream of the wheels to ensure eeitrtage cable. The guide (3) is preferably united

  lower wheel bearing (2).

  In front of the two knurls positioning is

  one or two knives (4) suitably positioned on a sup-

  port, the one or more knives being in a vertical plane and

  killing in the median axis of each of the knurls between the constituent contiguous disks (Figure 3). The knife or knives thus ensure the cutting in one or two diametrically opposite places -4-

cable ensuring its stripping.

  According to the prior art, the upper wheel (1) can be in a fixed position and the lower wheel (2) in position

  mobile, their axes remaining however in the same plane and parallel.

  The arrow Fl has illustrated the possibility of spacing of

said wheel (2).

  Alternatively the upper wheel (1) can be movable

  and the lower wheel in fixed position (arrow F2).

  According to a first characteristic of the invention,

  the upper and lower wheels are movable simultaneously

  according to the arrow F3 either by pivoting or parallel

  at a direction orthogonal to the axes of wheels. A steering wheel

  (5) with a suitable transmission (6) allows the

  or simultaneous approximation of the two wheels to adapt to the diameter of the treated cable. The two knives (4) whose supports

  associated with the roller bearings are also movable

together with the corresponding wheel.

  According to another characteristic of the invention, in

  3 to 5, the stripping machine is equipped with a

  Positive positive guiding of the cables on the axes of

  stretching and cutting. This device comprises guiding

  all referenced together (7-8) located laterally

  and on both sides of the drive axes and cutting cables.

  The two organs are thus located in a horizontal plane at neither

  calf of the cable to be clamped, and each have in a front portion a terminated end (71-81) established so as to pass between the space * 9defini between the peripheral edges facing the knurls (1-2) at the place passage of the cable. The tapered part

  is never in contact with the wheels and has the function of

  vir means of guiding and reteni cable (c) very small section for example of the order of 5 millimeters. The displacement of the two guide members (7-8) is synchronized by means of

  any transmission related to the said organs, with a means of

  single command operated by an operator.

  According to a complementary provision of the

  -5- vention, a synchronization of movements between the guide members (7-8) and the spacing of the wheels (1-2) by any means

  appropriate transmission and single manual or automatic control

  matic. FIGS. 6 and 7 illustrate an implementation of

  the invention in a non-limiting manner.

  The knobs (1-2) and their drive means are suitably arranged in a frame (9). Upstream of the wheels is shown the cable introduction guide (3) suitably fixed to the frame. The knives are arranged downstream behind the

  wheels (1-2), between the notched disks constituting them.

  The lateral guide members (7-8) are established in the form of bent arms in their front part and hinged together in their rear part with a connecting means (10). The slender parts (71-81) arranged at the front of the arms, are facing one another and pass under the knobs (1-2) to come ensure a

  guidance and maintenance of the cables avoiding any shifting of these.

  The front arm (7) has in its bent part a boss (72)

  in which is engaged the threaded end (111) of a connecting rod

  its (11) associated with a control wheel (12), itself arranged on a support (13) of the control panel of the frame. It is provided that said support (13) has a profile (14) U for guiding and maintaining free sliding and controlled arm (7). In a symmetrical manner the arm (8) is arranged with a free and controlled sliding extension in a support section (15) inside one

walls of the building.

  Both arms are arranged at their rear end to receive a means of connection and transmission of movements under

  form of rod, rack insern or others to ensure their écar-

  synchronized and regular approach or approximation during the action of the

control wheel (12).

  The advantages are apparent from the invention. In particular

  the simplicity of realization of the guiding device

  lateral side of the cable and quick adaptation without delicate maneuvering

  of the machineau treatment of all types of cables.

  The invention is in no way limited to that of its modes of application nor to those of the embodiments of its various parts which have been more specifically indicated. she

  on the contrary embraces all variants.

-7-

Claims (8)

  -1- Cable stripping machine, of the type comprising two wheels   (1-2), whose axes are parallel and with variable spacing,   of driving means to turn in the opposite direction of   to cause a cable (c) pinched between them, said cable circling   between a guide (3) located upstream of the knurls and a cutting device (4) situated downstream and intended for splitting the cable, said   machine being characterized in that it comprises a device as-   sensing a positive guide of the cable on the drive axes and cutting.   -2- stripping machine according to claim 1 characterized in that the device providing positive guidance of the cables comprises guide members (7-8) located laterally and on either side of the drive axes and cutting cable, said organs   being synchronized on the move to ensure separation or   depending on the section of the cable to be treated.   -3- stripping machine according to claim 2 characterized in that the guide members (7-8) located in a horizontal plane to   level of the cable to be clamped have in their front part an   slender tremity (71, 81) established to be introduced into the space "e" defined between the peripheral edges facing the knurls   (1-2) where the cable passes without being in contact with it.   -4-stripping machine according to claim 1 characterized in that   that the upper and lower wheels are movable simultaneously   either by pivoting or parallel to an orthodox   to the axes of the knurls, a control means (5) with a   transmission (6) allowing the simul- two wheels.   -5- Stripping machine according to claims 1 to 4 together with   in that it includes means of synchronization and   transmission of movements between the guiding members (7-8)   -8- lines of the cable and the spacing of the knobs (1-2) to ensure by a single command their adaptation to the diameter of the cable to be treated.   -6- Machine according to claims 2 and 3 together characterized   in that the lateral guide members (7-8) are in the form of bent arms with tapered ends (71-81) in their front part and articulated together in their rear part with a connecting means (10); the front arm (7) being arranged in its   part bent with a boss (72) in which the end is engaged.   threaded joint (111) of a connecting rod (11) which is associated   to a control wheel (12), located on a support (13) in the   control panel of the machine frame.   Machine according to Claim 6, characterized in that U-shaped profiles (14) (15) are provided on the frame of the machine for   guiding and maintaining free and controlled sliding of said arms (7-8).   -8- Machine according to claims 2, 3 and 6 together characterized   in that the two arms (7-8) are arranged at their rear end with means for connecting and transmitting movements in the form of rods, reverse racks or the like to ensure synchronous spacing or approaching during the action of the flying control (12).