FR2710581A1 - Apparatus for folding a rotary roller press. - Google Patents

Abstract

a) Folding device of a rotary cylinder press, b) the first longitudinal folding installation and the transverse cutting and transverse folding installation (3, 4.1, 4.2) are mounted on a base frame (8), a second folding / second transverse folding output installation (9) being mounted on a first auxiliary frame (10) and the second longitudinal folding installations (11) each with a transport device (12) are mounted on the second auxiliary frames (14), one or more low and high product outlets (5, 6), aligned horizontally.

Description

"Apparatus for folding a rotary roller press" The invention

  relates to a folding apparatus of a rotary roller press having a first longitudinal folding installation, a cross-cutting and transverse folding installation with a cutting cylinder, a folding and pinning cylinder, and a pinch cylinder. folding, at least a second longitudinal bending installation traversed each time by a guide strip and corresponding output devices and transport devices for transferring and decelerating printing products, folding

  transverse, towards the second folding

  longitudinal, this folding apparatus having a modular construction.

  Construction folding apparatus is known

  modular arrangement according to DE-36 26 287 corresponding to the type of apparatus defined above. The solution described

  in this document consists of different modules and follows

  In this case, a more developed folding apparatus is

  starting from a basic realization, simple.

  A disadvantage of the modular construction thus described, however, is that the system components

  include individual connection parameters,

  putting a change of position of the different components inside the system. It is certainly possible to increase production capacity by the addition or insertion of other components. However, this requires a transformation or even replacement of components of

existing systems.

  The present invention aims to create a folding apparatus corresponding to the type defined above, and which allows the realization of folding systems with a minimum of components, the manufacture of a number also

  as much as possible of folded, variable products.

  For this purpose, the invention relates to a folding apparatus of the type defined above, characterized in that the first longitudinal folding installation and

  cross-section and cross-folding installation

  sal are mounted on a base frame, a second folding / second transverse folding output installation being mounted

  on a first auxiliary frame and the second installa-

  longitudinal folding with each time a device

  of transport are mounted on the second frames auxiliai-

  res, one or more outputs low and high of products,

  aligned horizontally, being provided on a first cy-

  folding liner of the transverse folding installation, the base frame having at the outlet

  products, the connection points for connecting

  der the first auxiliary frame and alternatively one of the

  auxiliary built conds, the base frame having connection points at the top outlet of products

  to connect one of the second auxiliary stations, the first

  first auxiliary frame and the second auxiliary frame having on their side close to the base position, at a

  entrance slot, connection points, the second

  auxiliaries having on their side a distance from the building of

  base, at the level of the guide strip passing through

  longitudinal folding installations, connecting points for connecting the first auxiliary frame and, in a variant, a guide strip and in that the low output of products, at the level of the first folding-leg cylinder is composed of a first a guide strip cooperating with this cylinder, a return cylinder, a second guide strip cooperating with the return cylinder and whose front part can be disengaged by tilting of the return cylinder, as well as tilting deflectors and fixed deflectors, the path of products folded between the first guide strip and the second guide strip being less than the length of a folded product, and

  Instead of the return cylinder a second cycle can be used.

  folding liner to form a second transverse fold, the second fold-leg cylinder being

  alternatively provide the role of a return cylinder.

  According to other advantageous features of the invention: the high output of products on the first

  cylinder with folding legs consists of a mounting of

  deflection tabs, which can be stopped and tilted periodically and a guide strip cooperating with these tabs,

  - a first auxiliary frame with the installation

  second folding / second transverse folding output connection, to be connected to the base frame at the low product outlet, on the first folding leg cylinder, and the entrance right of the second folding outlet installation the second transverse fold is turned towards the exit slot of the low product outlet, the tilting part of the second guide band and the tilting baffles are disengaged from the first bent-fold cylinder and that the bending plates are applied. against the first folding-leg cylinder, - the tilting portion of the second guide band and the tilting baffles are not tilted and in that the bends of the first folding-leg cylinder are stopped, - a second auxiliary frame with a second

  longitudinal folding installation, the second frame

  liar being connected in a horizontal aligned

  on the base frame at the low product outlet, on the first folding leg cylinder for the entrance slot of the transport device to face the exit slot of the product outlet, - to transfer and decelerating the cross-folding products, the conveying device comprises a strip system consisting of driven strips, these strips passing each time on a first pair of rolls and

  a second pair of cylinders, the first pairs of

  lindres facing each other to define the manufacturing path, the cylinders that form the entrance slot and the cylinders that form the exit slot being mounted each time on the nuts provided on either side and belonging to a screw gear with a threaded spindle, sliding symmetrically by

  in the middle of the production path to get closer to

  expensive or departing, compensating cylinders being pre-

  seen to compensate for the length of the strip path and each time a cylinder of the second pair of rolls can be driven at a reduced peripheral speed

  in relation to the speed of entry of products, and the

  guide rails pass through the transport device by being aligned in the direction of transfer below the flow of products between the belts, - a first auxiliary frame comprising

  the second folding / second folding

  versal and to which is connected the second auxiliary frame, the entrance slot of the second folding facility / second transverse folding being turned towards the exit slot of the guide strip passing through the second installation of

longitudinal folding.

  The present invention will be described hereinafter with the aid of an exemplary embodiment shown in the accompanying drawings in which: - Figure 1 is a side view of the folding apparatus according to the invention, corresponding to a third step; a base frame belonging to the basic equipment as well as a first auxiliary frame and two second auxiliary stations mounted one above the other. - Figure 2 is a side view of the device

  in accordance with the invention, for a second step of de-

  development, including basic equipment and one of the

second auxiliary posts.

  FIG. 3 is a side view of the low outlet of the products of a first folding-leg cylinder of the transverse folding installation in the arrangement.

  opposite "with a second cylinder with folding legs" se-

  in a first stage of development (Figure 3a) and with a "return cylinder" in the basic equipment (figure

3b).

  - Figure 4 is a side view of the basic equipment of the folding apparatus according to the invention, comprising the first auxiliary frame of Figure 1 and Figure 2 connected directly to the frame of

based.

  FIG. 5 is a side view of a device

  transport in the second extension, showing the "minimum product length" setting in

  and the setting "maximum product length" (Figure 5b).

  The folding apparatus shown in Figure 1 is known for its essential components, its basic structure and its operation. A printed band arriving at the entrance is folded longitudinally, according to a first fold

  longitudinal, through a folding hopper 1

  with traction cylinders 2. This installation

  Longitudinal folding is usually followed by a

  cross-sectional section and a transverse folding installation comprising a cutting cylinder 3 and a pliers holder cylinder and pins 4.2 and a first cylinder with folding tabs 4.1. The pliers and pins cylinder 4.1 grasps and holds a web segment

  cooperating with the cutting cylinder 3 to separate a seg-

  and cooperates with the first folding leg cylinder 4.2 to bend transversely and grasp the band segment conducted around the folder cylinder and pins 4.2 through the first folding leg cylinder 4.2,

substantially in the middle of the segment.

  In the case of a cumulative manufacture, the rollers of the cylinder 4.1 and the legs of the first roll 4.2 are activated only when each time two segments of the roll of the roll 4.1 are superimposed to be provided.

  to the first cylinder with folding tabs 4.2.

  In addition to the tabs, the first cylinder 4.2 also has other bends which cooperate with the folding tabs of another cylinder and are necessary

for a second transverse folding.

  According to the invention, there are provided product outputs, low 5 and high 6, aligned horizontally on

  the first cylinder with folding tabs 4.2.

  The low output of product 5 consists of a

  first guide strip 5.1 cooperating with the first cy-

  folding liner 4.2, a deflection cylinder 5.2,

  a second guide strip 5.3 cooperating with the cylinder

  referral 5.2; this second guide strip 5.3

  carries a front part that can be tilted to be

  close or unobstructed; it also includes deflections

  5.4 which may be applied or released from the

  front section of guide strip 5.3 and fixed deflectors 5.5; the path for the folding products between the first and second guide strips

  5.1, 5.2 is less than the length of the folded product.

  The high output of product 6, known per se, consists of a mounting of deflection tabs 6.1 which can be periodically applied and tilted, as well as

  than a guide strip 6.2 cooperating with these languets-

  your. According to the invention, instead of the deflection cylinder 5.2 can alternatively provide a second cylinder with fold tabs 7 to form a second transverse fold; alternatively, the second folding leg cylinder 7 can

  also act as the check cylinder 5.2.

  FIG. 3a shows the operation of the second folding-leg cylinder 7 replacing the deflection cylinder 5.2 both in its function as a folding-leg cylinder and in its function as a return cylinder. In its folding-leg cylinder function, the front part of the guide strip 5.3 which tilts with the deflectors 5.4 is disengaged from the second fold-leg cylinder 7;

  in the function "return cylinder" these means are

  folded against the second cylinder with folding tabs 7.

  FIG. 3b shows the low output of products with the return cylinder 5.2 which is tilted against the second cylinder with folding tabs 7 at the same time as the deflectors 5.4 swinging from the front part of the second

guide strip 5.3.

  It should be noted here that the installation of

  transverse folding requires the stopping of the bends of the first cy-

  4.2 when there is a return cylinder 5.2 or a second cylinder with folding lugs 7 which

  plays the role of return cylinder.

  FIGS. 3a and 3b also show that the deflectors 5.4 swinging with the tilting front part of the guide band 5.3 both in the

  tilting by cooperating with the first cylinder

  4.2 (to deflect cylinder products)

  that by cooperating with the second cylinder 7 (guiding the

  by deviating them). By their dual function, the

  flectors 5.4 have a convex face facing the first cylinder 4. 2, and a concave face turned towards the second

  cylinder with folding tabs 7; the side turned towards the

  Folding cylinder cylinder 7 forms part of a circular cylinder surface whose radius of curvature

  is substantially equal to the largest radius of the second cylinder

  dre with folding legs 7 increased by the maximum thickness

of the product flow.

  According to the invention, the first longitudinal folding installation and the cross-cutting and transverse folding installation with the first leg cylinder

  folding 4.2 and the one that cooperates with the outputs of pro-

  5, 6 are mounted on a base frame 8. The base frame 8 comprises at the level of the low and high product outlets 5, 6, on the first cylinder with folding tabs 4.2, connecting points. to connect in

variant, auxiliary frames.

  A conventional installation for a second folding / second transverse folding 9 is mounted according to the invention on a first auxiliary frame 10. This auxiliary frame 10 is provided on the adjacent side of the base frame,

  connection means at its entrance right-of-way.

  The base frame 8 and a first auxiliary frame

  connected to it at the level of the low output of

  5 (the entrance slot of the "second fold / second transverse fold 9" installation is turned towards the outlet slot of the bottom product outlet 5), with the return cylinder 5.2 of the product outlet 5 form the basic equipment of the folding apparatus according to the invention, as shown in FIG. 4, which allows the production of

  folded products with a longitudinal fold and a transverse fold

  sal for the modes of production without collection and with

  lection. A first development of the basic equipment consists of using a second folding-leg cylinder 7 in place of the deflection cylinder 5.2 in the housing.

  product 5 as described above and re-

  shown in Figure 3; this allows the manufacture of folded products having a longitudinal fold and two transverse folds in the modes of production without collection and

with collection.

  The connection of the two frames 8 and 10 is done with

removable screws.

  According to the invention, furthermore, the second

  11 known longitudinal folding plants are received

  with each time a transport device 12 for transmitting

  and decelerate cross-fold products and each

  once a guide strip 13 passing through the second instal-

  longitudinal folding 11 by the second auxiliary station

  14 (see Figure 1 or Figure 2).

  The transport device 12 for transferring

  and decelerate cross-folding products is

  shown in Figure 5; it consists of a band system consisting of circulating bands 12.1 and 12.2. Groups

  12.1 and 12.2 respectively pass on a pair of cylinders

  dres formed cylinders 12.3 and 12.4 and a pair formed cylinders 12.5 and 12.6. The pairs of cylinders 12.3 and

  12.4 are opposite and delimit the production path.

  The cylinders 12.3 forming the entrance right-of-way are

  respectively, on both sides, on nuts 12.7 and the cylinders 12.4 which form the outlet right-of-way are respectively mounted on screw transmission nuts 12.8 provided on both sides of the frame. Each screw drive consists of a 12.9 threaded spindle with a thread

  trapezoidal with right steps on one half and not on the left

  che on the other half each time receiving the two nuts 12.7 and 12.8 whose flanks of the threads are directed from

corresponding way.

  The cylinders 12.3 and 12.4, which delimit by

  the top the manufacturing path, are mounted in sup-

  12.10 and 12.11 fork-shaped ports, solidly connected to nuts 12.7 and 12.8; these media loaded by springs can escape upwards. The cylinders

  12.5 are loaded on both sides with

  compression spells in a 12.12 link, which may

  der in the direction of the resulting pulling force.

  In known manner, the cylinders 12.6 are

  both sides in the frame of the transport device 12 and are driven from the outside by a not shown gear train. A switching transmission also not shown can drive the system of belts or belts at the same speed as the product entry speed or at a reduced peripheral speed

A half.

  In addition, compensation cylinders 12.13 are provided to compensate for the length of the path of the strips 12.1 and 12.2. Each cylinder 12.3 and 12.4 has associated each time a compensation cylinder 12.13 mounted on an arm 12.14 integrally connected to the cylinder. Guide rods 12, 15, aligned in the running direction, pass through the transport device 12 over its entire length and are

  mounted under the product stream between bands 12.1.

  Depending on the length of the product, the screw transmission allows, by a single adjustment action, to adjust the inlet grip formed by the cylinders 12.3 and the outlet grip formed by the cylinders 12.4, simultaneously and symmetrical (with respect to the middle of the product path in the transport device 12), inwardly and outwardly, so that the inlet right-of-way and the outlet right-of-way are inwardly shifted

  outwardly allow the continuous adjustment of the

  It transfers the segment of the bands 12.1, 12.2; even the comparison of the positions of Figures 5a and 5b. The pair of spring loaded cylinders 12, 3, 12.4 which delimits

  from the top the path followed by the product adapts

  plesse to the thickness of the product flow. The second auxiliary frame 14 is provided with connecting elements on its side close to the base frame, at its input right-of-way and on its side remote from the base frame, at the level of the guide strip.

  13 passing through the second longitudinal folding installations

  tudinal 11, there are connection points to connect

  alternatively the auxiliary frame 10 or the strips of guide-

age 15.

  The base frame 8 and the second auxiliary frame

  14 connected to it at the level of the low output of

  5, the slot or slot of the device of

  transport 12 is turned towards the gap or slot

  5) - as well as an auxiliary frame 14 connected by its far side to the second frame

  auxiliary 14 (the entrance interval of the installation

  cond folding / second transverse folding is turned towards the outlet grip of the guide strip 13), form

  with the facilities described above, a second development

  the development of the folding apparatus according to the invention as

  shown in Figure 2; this installation makes it possible

  to bend folded products having two longitudinal folds and two transverse folds whether it is a production with

  or without collection; in the case of production without

  lecte, one works at a speed of folding limited by the maximum folding speed of the second installation of

longitudinal folding 11.

  The connection of frames 8, 10 and 14 is done by

removable screws.

  The base frame 8, the two auxiliary frames 14 aligned vertically and horizontally on the base frame 8 at the level of the low and high product outlet 5

  6, an auxiliary frame 10 is connected to the lower side of the housing.

  ti auxiliary 14, its side remote from the frame, and two guide strips 15 on the upper auxiliary frame 14, on its side remote from the frame, and which close the path of the

  produced to the auxiliary frame 10 form a third ni-

  calf equipment of the folding apparatus according to the invention as shown in Figure 1 and which serves to produce folded products having two longitudinal folds and a fold

  transversal according to the type of manufacture with or without

  lection; in the case of manufacturing without collection, we can work at a much higher speed than

  that of the second level of equipment (substantially one

double pitch).

  It should be noted that the low output of

  5 on the first folding leg cylinder 4.2 is

  mounted with an angular disposition relative to the first

  first cylinder with folding tabs 4.2 so that the lengths of the two product emission points of the first cylinder with folding tabs 4. 2 for the stroke followed by the product, up to the scale outlet, second folding / second folding transversal / second longitudinal fold, correspond to an integer multiple of the length of folded products with transverse fold. A particular advantage of the invention is that

  the second folding-leg cylinder 7 and the arrangement

  transport 12 which can alternatively be used for

  times for decelerated transfer and non-decelerated transfer.

  folded products and adjust according to different

  folded products, allows in conjunction with the

  modular construction of the folding apparatus and using

  speed. circulation available from the press to

  to print, to manufacture in a very economical way, an opti-

  mum of variants of folded products.

  Variations of folded products, possible, de-

  written with the description of the construction in stages of

  the folding machine are presented without any

  tif. For example, the second level of development also makes it possible to manufacture folded products having a long fold.

  longitudinal and two transverse folds in the type of

  cation with collection and at a bending speed

  considerably higher (about twice as much)

  reason with that corresponding to the first level of development.

opment.

  It is also particularly advantageous that the embodiment of the folding apparatus, in stages, is also done by the multiple use of identical components (auxiliary stations) which reduces the cost of manufacturing at the industrial and the cost of

  investment in the user. The latter may consider

  handle extensions of his folding machine also in a deferred manner; it can use the existing equipment completely and without modification, ie the subsequent investment corresponds to a development of

the range of products.

LIST OF REFERENCES

  1 folding hopper 2 traction cylinders 3 cutting cylinders 4.1 folding cylinder and pins 4.2 first cylinder with folding lugs low output 5.1 first guide band 5.2 return cylinder 5.3 second guide strip 5.4 movable baffle 5.5 fixed deflector 6 outlet high 6.1 deflection tongues 6.2 guiding strip 7 second folding-leg cylinder 8 base frame 9 installation for second folding 10 first auxiliary frame, second longitudinal folding installation 12 conveying device 12.1, 12.2 belts or belts 12.3, 12.4 cylinders 12.5, 12.6 cylinders 12.7, 12.8 nut 12.9 threaded spindle 12.10, 12.11 support 12.12 bottom 12.13 compensating cylinders 12.14 spacer 12.15 guide rods 13 guide strips 14 second auxiliary frame 15 guide strips

Claims (9)

R E V E N D I C A T IONS   1) Folding apparatus for a roll rotary press having a first longitudinal folding installation, a cross-cutting and transverse folding installation with a cutting cylinder, a fold-and-pinch cylinder, and a pinch cylinder.   at least one second folding installation   tudinal traversed each time by a guide strip and corresponding outlet installations as well as transport devices for transferring and decelerating   printing products, cross-folding, to the se-   condes longitudinal folding facilities, this device   folding device having a modular construction, apparatus   characterized in that the first longitudinal folding installation   tudinal and the cross-sectional and transverse-folding installation (3, 4.1, 4.2) are mounted on a base frame (8), a second folding / second transverse folding installation (9) being mounted on a first auxiliary frame (10) and the second longitudinal folding installations (11) with each time a device   of transport (12) are mounted on the second frames   one or more horizontal and horizontally aligned outputs (5, 6) being provided on a first folding-leg cylinder (4.2) of the transverse folding installation, the base frame (8) being ) having at the level of the low output of products (5) the   connection points for connecting the first frame   liary (10) and alternatively one of the second auxiliary frames   res (14), the base frame (8) having at the outlet   products (6), connection points for   cording one of the second auxiliary stations (14), the first auxiliary frame (10) and the second auxiliary frame (14)   having on their side close to the basic position, at   calf of an entrance slit, connecting points, the second auxiliary frames (14) having on their far side   of the base frame, at the level of the guiding strip (13)   pouring the second longitudinal folding installations   (11), connection points to connect the first building   an auxiliary device (10) and, in a variant, a guide strip (15) and in that the low output of products (5), at least   calf of the first cylinder with folding legs (4.2)   laying a first guide strip (5.1) cooperating with this cylinder, a return cylinder (5.2), a second guide strip (5.3) cooperating with the return cylinder   (5.2) and whose front part can be disengaged by   the deflection cylinder (5.2) and the deflec-   tilers (5.4) and fixed deflectors (5.5), the   folded products between the first web of   (5.1) and the second guiding band (5.2) being less than   the length of a folded product, and in place of   cylinder (5.2) a second cylinder can be used.   with folding tabs (7) to form a second fold   transversely, the second cylinder with folding lugs (7) can   In the alternative, it is possible to provide the role of a return cylinder.   2) Folding apparatus according to claim 1, characterized in that the upper product outlet (6) on the first folding-leg cylinder (4.2) consists of a deflection tab assembly (6.1), which can be   stopped and tilted periodically and a band of guide-   (6.2) cooperating with these tabs.   3) Folding apparatus according to claim 1, characterized by a first auxiliary frame (10) with   the second folding / second folding   versal (9), to be connected to the base frame (8) at no   of the low product outlet (5), on the first folding leg cylinder (4.2), and the inlet right-of-way   the second folding / second folding   versal (9) is facing the exit slot of the exit product low (5).   4) Folding apparatus according to claim 1, comprising a second folding-leg cylinder for forming the second transverse fold instead of the deflection roll, characterized in that the tilting portion of the second guiding band (5.3) and tilting deflectors (5.4) are released from the first cylinder to   folds (7) and that the folds are applied   against the first folding-leg cylinder (4.2).    Folding apparatus according to claim 4, comprising a second folding-leg cylinder in the   place of the return cylinder, and playing the role of this cylinder   reference device, characterized in that the part   of the second guiding band (5.3) and the   tilting flippers (5.4) are not tilted and in that the folding bends of the first cylinder with folding flaps (4.2) are stopped.   Folding apparatus according to claim 1, 4 or 5, characterized by a second auxiliary frame (14) with a second longitudinal folding arrangement (11),   the second auxiliary frame (14) being connected in a posi-   horizontally aligned on the base frame (8) at   of the low product outlet (5) on the first folding-leg cylinder (4.2) so that the inlet slot of the transport device (12) is turned towards   the exit slot of the product outlet (5).   7) Folding apparatus according to claim 6, characterized in that for transferring and decelerating the cross-folding products, the conveying device comprises a band system consisting of strips. (12.1, 12.2) driven, these strips (12.1, 12.2) passing each time on a first pair of rolls (12.3, 12.4) and a second pair of rolls (12.5, 12.6), the first pair of rolls (12.3, 12.4) being facing one of   the other to delimit the production path, the cylinders   dres (12.3) which form the entrance slit and. the cylinders (12.4) which form the exit slot being mounted each time on nuts (12.7, 12.8) provided on both sides and belonging to a screw drive with a threaded spindle (12.9), being slidable symmetrically with respect to the middle of the production path to approach or move apart, compensating rolls (12.13)   being designed to compensate for the length of the banana path.   (12.1, 12.2) and each time a cylinder (12.6) of the   second pair of cylinders (12.5, 12.6) which can be   dragged at a reduced peripheral speed with respect to the input speed of the products, and guide rods (12.15) pass through the transport device (12) aligned in the transfer direction below the flow   products between bands (12.1).   8) Folding apparatus according to the claims   1, 4 or 5, 6, 7, characterized by a first auxiliary frame (10) having the second folding / second transverse folding output installation (9) and to which is connected the second auxiliary frame (14), the slot of entrance of the second folding / second transverse folding installation (9) facing towards the exit slot of the guide strip   (13) passing through the second longitudinal folding installation dinal (11).   9) Folding apparatus according to the claims   1 and 2, 4 or 5 and 7, characterized by two second auxiliary stations (14) with second longitudinal folding installations (11), the second auxiliary stations (14) being superposed vertically and aligned horizontally with respect to the base frame ( 8) at the low and high product outlet (5, 6) on the first folding leg cylinder (4.2) so that each time the inlet slit of the transport device (12) is turned towards   the exit slot of the product outlet (5, 6), a first   first auxiliary frame (10) comprising the installation of   second folding / second transverse folding (9) and is connected to the second auxiliary frame (14), lower, the entrance slot of the second folding / second transverse folding installation (9) being turned towards the guide strip (13). ) passing through the second low longitudinal fold installation (11) and a guide strip (15) is provided for   connect the guide strip (13) passing through the second   longitudinal folding structure (11), with the second folding / second transverse folding installation (9) carried by the first auxiliary frame (10).   10) Folding apparatus according to one of the   1 to 5, characterized in that the low product outlet (5) is provided on the first folding leg cylinder (4.2) with an angular arrangement with respect to the   first cylinder with folding tabs (4.2) so that the lon-   the paths followed by the product at the exit of the two points of emission of the products on the first cylinder   with folding legs (4.2) up to the exit with scales se-   cond folding / second transverse folding / second longitudinal folding   tudinal, correspond to an integer multiple of the length   folded products with transverse folding.