FR2585685A1 - METHOD FOR MANUFACTURING COILS OF FRINGED CREPE PAPER, OR PROVIDED WITH OTHER PUNCHES, OR OTHER PAPERS, AND MACHINE FOR CARRYING OUT SAID METHOD - Google Patents

Abstract

THE INVENTION CONCERNS A PROCESS CHARACTERIZED IN THAT IT CONSISTS OF WINDING AT LEAST ONE REEL OF CREPE PAPER, OR OTHERWISE, OF LARGE WIDTH 1 TO BE CARRIED OUT ON THE PAPER THUS UNDELIVERED, AT PREDETERMINED INTERVALS, IN THE WIDTH DIRECTION, a CROSS-CUT FOLLOWING A PREDETERMINED STEP AND FOLLOWING PARALLEL BANDS OF PREDETERMINED WIDTHS, BY PASSING BETWEEN A BLADE HOLDER CYLINDER 2 AND A CUTTING COUNTER CYLINDER 3, TO BE CARRIED IMMEDIATELY AFTER THIS CUTTING A PREDETERMINED CUTTING LINDER CYLINDER 2. BY SHEARING BETWEEN KNIFE HOLDERS 4 AND A COUNTER-KNIFE HOLDER SHAFT 5, THEN BY CONTINUOUSLY WINDING THE STRIPS OF REDUCED WIDTH THUS OBTAINED IN COILS 6 WITH CONTINUOUS APPLICATION OF PRESSURE ON SAID COILS 6 IN FORMATION, AND FINALLY RELEASED COILS 6 AFTER REACHING A PREDETERMINED DIAMETER TRIGGERING AN AUTOMATIC STOP.

Description

The present invention relates to the field of making flowers in

  paper, garlands, or other decorative or cotton products, and has as its object

  a process for manufacturing coils of crêpe crepe paper

  ge, or provided with other cutouts or other papers. The invention also relates to a machine

  for the implementation of this process.

  Currently, the production of strips of fringed crepe paper is generally carried out by cutting a

  edge of a strip of paper scrolling continuously or in a

  re jerking between knives, or passing through a movement

  jerky in a cutting press provided for this purpose.

  These known embodiments, however, do not allow the production of very long strips wound in reels usable on flower making machines.

continuously, or the like.

  The present invention aims to overcome these drawbacks.

  It has, indeed, for object a characteristic process

  laughed at in that it consists of unwinding at least one reel of crepe paper, or the like, of large width, to carry out on the paper thus unwound, at predetermined intervals in the width direction, a transverse cut according to a predetermined pitch and along parallel strips of predetermined widths, by passing between a blade cylinder and a cutting counter cylinder, to be made immediately after this cutting a longitudinal cutting along predetermined parallel cutting lines by cutting by shearing between knife holders and a counter knife holder shaft, then continuously winding the strips of reduced width thus obtained in coils with continuous application of pressure on said coils in formation, and finally releasing the coils after reaching a diameter

  predetermined triggering an automatic stop.

  The invention also relates to a machine for the implementation of this method characterized in that it is essentially constituted by a frame provided with a reel at one or more stations, by a blade holder cylinder assembly - against cylinder cutting, by a knife holder - knife holder shaft mounted to the

  following the first set, and by a formati-

  of coils with continuous pressure application.

  The invention will be better understood thanks to the

  description below, which relates to an embodiment

  preferred tion, given by way of nonlimiting example, and explained with reference to the appended schematic drawings, in which: FIG. 1 is a side elevation view in section of a machine according to the invention;

  Figure 2 is a sectional view of the shaft

te-lame;

  Figure 3 is a sectional view of the carrier shaft

counter knives and

  Figure 4 shows various variants of

  possible cuts of conformal rewinding tapes

to the invention.

  In accordance with the invention, and as shown more particularly, by way of example, FIG. 1 of the appended drawings, the machine for the production of reels of crepe paper fringed or provided with other cutouts, or other papers, is essentially constituted by a frame 7 which

  is provided with a reel 8 at one or more receiving stations.

  reels to unwind of large width paper 1, and by a blade cylinder assembly 2 - counter cylinder of

  cutting 3 following the reel 8 and intended to make

  be on paper strip 1 at predetermined intervals

  in the width direction, a transverse cut follows

  in a predetermined step and in parallel bands

of predetermined widths.

  On the frame 7, is further mounted immediately after the blade cylinder assembly 2 - counter cylinder

  cutting 3 in the direction of scrolling of the paper, a set

  shear cutting line comprising doors

  knives 4 and a knife holder shaft 5 intended to make a longitudinal cut along lines of

  predetermined parallel cuts. At the end of this set

  ble 4 - 5, the reduced width paper strips are

  continuously rolled on reels 6 by means of a device

  sitive 9 with continuous pressure application.

  The blade cylinder 2 is removably mounted on the frame 7 above the cutting counter cylinder 3, the pressure of application against the blades of the blade cylinder 2 is adjusted by means of screw jacks 10 integral with the frame 7 and supporting with guide

  the axis of the cutting counter-cylinder 3.

  The blade cylinder 2 is constituted by a support shaft 11 provided, on the one hand, at one end with a

  shoulder 12, and at the other end of a clamping ring

  ge 13, and, on the other hand, between the shoulder 12 and the ring

  13 with a keyway 14, and by holder sockets

  interchangeable blades 15 linked in rotation to the shaft 11

by means of clamping sleeves 16.

  The cutting counter cylinder 3 is driven in synchronism with the blade cylinder 2 by means of a

  couple of toothed wheels integral with the axes of the counter cy-

lindre 3 and cylinder 2.

  The blade holder sockets 15 are provided with the

  my interchangeable and / or reversible 17 which are now

  naked in said blade holders 15 by means of the sockets

tightening 16.

  The knife holders 4 are provided, so as to

  naked, of disc-shaped knives and spaced apart

  tervalles corresponding to the widths of the coils 6 to be obtained

  nir on a slide and the knives are mounted in a way

  re movable relative to the shaft 5 by means of a provision

pneumatic action 26.

  The knife holder shaft 5 has bars

  gues 18 each having a lateral groove 19 cooperating with a corresponding knife of the knife holders 6, these rings being spaced by means of interchangeable sockets 20. The device 9 for winding the coils 6 of

  reduced width consists essentially of a man-

  drin 21 for receiving the reels 6 mounted on a rewinding carriage 22 movable in a guided manner on the frame 7 of the machine, and by a set of continuous application of strips of paper of small width on the reels in formation 6 in the form conveyor belts 23 guided on the bushings 20 for spacing the rings 18, partially winding around the coils in formation 6, passing over idler rollers 24 and over a tensioner roller 25

  tee on a swivel arm 27 which can be loaded with counter

  weight, a guided roller 28, resting on the upper part

  of the reel 6 in formation, ensuring a winding

  maximum bands 23 around the coils.

  The rewinding carriage 22 is advantageously

  fitted on its underside, near each receiving edge

  tion of the mandrel 21, of a rack 29 cooperating with a pinion 30 integral in rotation with a common axis 31 fixed to

  free rotation on the frame 7, and the roller 28 is also

  ment mounted on an axis provided near each end of a pinion 32 cooperating with a rack 32 'extending along a guide 33 for receiving said ends, this guide 33 having the shape of a broken line formed by a vertical groove extending substantially above

  of the spool axis 6 at the start of its formation, and

  running along an oblique groove, the other end of which is

  connected to an upper horizontal groove. The mounting fi-

  fixed gears, in pairs, on common axes, allows by

  cooperation of these pinions with the corresponding racks

  dantes, a perfect parallelism between the mandrel 21, the

  the water 28 and the knife holder shaft 5, so that the

  formation of perfectly cylindrical coils is possible.

  On the frame 7 is further provided a limit switch 34, adjustable in position, which is actuated by the rewinding carriage 22 upon reaching the diameter

predetermined coil 6.

  To hold the mandrel 21 on the carriage 22, the latter is provided on each side with a retractable lock 35. The machine is driven by an actuating motor 36, by means of a

  clutch, a variator 37 whose output shaft is re-

  linked, via a pulley 38 and belts 39, to a pulley 40 secured to the support shaft 11, of the blade cylinder 2, a toothed wheel secured to the same shaft cooperating with a pinion secured to the tree

knife holder 5.

  The process and the machine in accordance with the invention allow the continuous production of strips provided with all types of cut (FIG. 4), namely, with fringes on

  an edge 41, with fringes on the two edges 42, and with other

very drawings 43.

  Thanks to the invention, it is possible to produce a very compact machine allowing reeling

  easy strips of crepe fringed paper, or others, of

  wide and very long, with one or more layers

or flat paper.

  Of course, the invention is not limited to

  embodiment described and shown in the drawings anne-

  xed. Modifications remain possible, in particular from the point of view of the constitution of the various elements, or by substitution of technical equivalents, without leaving for

  as much of the protection field of the invention.

RE V E N D I C A T IONS

  1) Method characterized in that it consists of unwinding at least one reel of crepe paper, or other, of large width (1) to be produced on the paper thus unwound, at predetermined intervals, in the width direction, a cut transverse according to a predetermined pitch and along parallel strips of predetermined widths, by passage between a blade cylinder (2) and a cutting counter cylinder (3), to be carried out immediately after this cutting a longitudinal cutting along lines

  of parallel cuts predetermined by cutting by ci-

  projection between knife holders (4) and a knife holder shaft (5), then continuously winding the strips

  of reduced width thus obtained in coils (6) with app-

  continuous plication of a pressure on said coils (6) in formation, and finally to release the coils (6) after reaching a predetermined diameter triggering an automatic stop.

  2) Machine for implementing the following process

  vant claim 1, characterized in that it is es-

  substantially constituted by a frame (7) provided with a deflection

  doir (8) at one or more stations, by a blade holder cylinder assembly (2) - cutting counter cylinder (3), by a knife holder assembly (4) - knife holder shaft

  (5) mounted after the first set, and by a provision

  reel (9) for forming coils (6) with application of

pressure continuously.

  3) Machine according to claim (2), character-

  in that the blade cylinder (2) is mounted in a manner

  re-removable on the frame (7) above the cutting counter-cylinder (3), the application pressure against the blades of the blade cylinder (2) is adjusted by means of screw jacks ao0) integral with the frame (7) and supporting with guide

  the axis of the cutting counter-cylinder (3).

  4) Machine, according to any one of the claims

  cations 2 and 3, characterized in that the cylinder

  blades (2) is constituted by a support shaft (11) provided, on the one hand, at one end with a shoulder (12), and at the other end, with a clamping ring (13), and , else

  part, between the shoulder (12) and the ring (13) of a rai-

  keyway (14), and by insulated blade sockets

  terchangeables (15) linked in rotation to the shaft (11) by means of keys and maintained at spacings by means of

clamping sleeves (16).

  ) Machine according to any one of claims 2 to 4, characterized in that the counter-cylinder

  (3) is driven in synchronism with the cylinder

  dre blade holder (2) by means of a pair of toothed wheels

  integral with the axes of the counter-cylinder (3) and cylinder (2).

  6) Machine according to claim 4, character-

  Seed in that the blade holder sockets (15) are provided with interchangeable and / or reversible blades (17) which are held in said blade holders (15) by means of the

clamping sleeves (16).

  7) Machine according to claim 2, character-

  laughing in that the knife holder shaft (5) has rings (18) each having a lateral groove (19) cooperating with a knife corresponding to the knife holders

  (4), these rings being spaced by means of inter-

changeable (20).

  8) Machine according to claim 2, character-

  in that the device (9) for winding the reels (6), of reduced width, is essentially constituted by a mandrel (21) for receiving the reels (6) mounted on a rewinding carriage (22) which can be moved in a guided manner on the frame (7) of the machine, and by a set of continuous application of strips of small width paper on the

  coils in formation (6) in the form of conveyor belts

  its (23) guided on the bushing spacers (20)

  gues (18), partially winding around the coils in formation (6), passing over idler rollers (24) and on

  a tensioner roller (25) mounted on a pivoting arm (27) for

  before being loaded with counterweight, a guided roller (28),

  resting on the upper part of the coil (6) in forma-

  tion, ensuring maximum winding of the strips (23)

coil turn (6).

  9) Machine according to claim 8, character-

  in that the rewinding carriage (22) is advantageous

  well equipped on its underside, near each edge

  receiving the mandrel (21), a rack (29) cooperated

  rant with a pinion (30) integral in rotation with a common axis (31) fixed to free rotation on the frame (7), and the roller (28) is also mounted on an axis provided near

  each end of a pinion (32) cooperating with a cre-

  mesh (32 ') extending along a guide (33)

  ception of said ends, this guide (33) having the shape of a broken line constituted by a vertical groove extending substantially above the reel axis (6) at the start of its formation, and extending by an oblique groove whose other end is connected to a groove

upper horizontal.

  ) Machine, according to any one of the res-

  dications 2, 8 and 9, characterized in that on the frame (7)

  furthermore, a limit switch (34) is provided.

  adjustable in position, which is activated by the carriage

  winding (22) upon reaching the predetermined diameter of

coils (6).