EP0664764A1 - Buckle folding machine - Google Patents
Buckle folding machineInfo
- Publication number
- EP0664764A1 EP0664764A1 EP93922855A EP93922855A EP0664764A1 EP 0664764 A1 EP0664764 A1 EP 0664764A1 EP 93922855 A EP93922855 A EP 93922855A EP 93922855 A EP93922855 A EP 93922855A EP 0664764 A1 EP0664764 A1 EP 0664764A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bogie
- work rolls
- machine according
- drive
- folding machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
- B43M3/00—Devices for inserting documents into envelopes
- B43M3/04—Devices for inserting documents into envelopes automatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
Definitions
- the invention relates to an upset folding machine with a stationary machine frame and four parallel work rolls of the same outside diameter, which form at least two folding nips for the folded material in pairs and can be set in rotation via a common gear at the same speed.
- the four work rolls are rotatably mounted in stationary frame plates and are connected to one another via gear wheels. Of these four work rolls, three each form two fold nips, each of which is preceded by a leading path receiving the material to be folded between two parallel guide plates with an electromagnetically pivotable flow limiter, while the fourth work roll is merely designed as a transport roll.
- the feed limiters designed as pressure rollers are pivoted with the aid of electromagnets and press the folded material against the work roll adjacent to the respective feed path in order to stop the feed movement of the folded material for the subsequent folding process and to reverse the direction of movement of the feed section of the folded material.
- the two electromagnets which produce the swiveling movement of the two flow limiters are actuated to control the folding process in accordance with the folding length by means of an electronic control which controls the impulses of an electronic pulse generator which is synchronized with the work rolls and the signals of the stationary folding which scans the leading leading edge of the folding material good sensors are fed.
- an electronic control which controls the impulses of an electronic pulse generator which is synchronized with the work rolls and the signals of the stationary folding which scans the leading leading edge of the folding material good sensors are fed.
- at least two electromagnets are required to actuate the advance limiter, which together with the guide plates of the advance tracks and the folded goods sensors and the electronic device require a corresponding minimum size of the machine.
- the object of the invention is to create a new paper folding machine which is as small as possible.
- a compression folding machine of the type mentioned at the outset in that the four work rolls and the common transmission are mounted in a bogie, which is rotatably mounted in the machine frame and can be rotated for pulling in, folding and ejecting the folded material via a drive are arranged, in which at least one of the work rolls rotating with it is displaceable, that at least one of the work rolls can be displaced inevitably within the bogie by means of a mechanical control device, and that one of the first folding nip, which interacts with the bogie during pulling in and folding assigned fold-in device is provided.
- the design according to the invention provides a mechanical control for both folding stations required in the case of zigzag and winding folds through the rotating bogie, the folding material being drawn in, folded and ejected during the gradual or continuous rotation of the bogie.
- the design according to the invention results in a simplification and downsizing of the construction of the upset folding machine since the parallel guide plates which delimit the leading path are eliminated.
- the relative movement stopping the forward movement of the folded material between the work rolls functioning as upsetting rolls is derived from the rotating movement of the bogie, so that no additional control elements are required to actuate the forward limiter.
- the design according to the invention also allows multilayered folded goods or folded-together folded goods to be folded into a zigzag fold or a folded fold or a single fold.
- the displaceability of the work rolls in the bogie provided according to the invention can be selected in accordance with the respective thickness of the folded goods.
- the control device for the forced displacement of the work rolls within the bogie allows the roll gap which is diametrically opposite to the first folding nip for the unimpeded passage of the folding good to open and close in time to form the compression loop for the second fold.
- a further feature of the invention provides that a transmission gear is provided for the transmission of the drive from the rotating bogie to the work rolls, in which at least one drive wheel of the work rolls rotating with the bogie is in engagement with a wheel which is stationary in the machine frame and coaxial with the bogie axis .
- This design provides a constant transmission ratio between work roll speed and bogie speed, the drive of the work rolls being derived from the bogie drive.
- the drive comprises a drive shaft connected to the bogie, on which a wheel which is in engagement with at least one drive wheel of the work rolls rotating with the bogie is arranged in a rotationally fixed manner.
- work rolls and bogie are driven by a common drive shaft.
- a work roll drive shaft coaxial with the drive shaft connected to the bogie in a rotationally fixed manner, on which a wheel which is in engagement with at least one drive wheel of the work rolls rotating with the bogie is arranged in a rotationally fixed manner.
- these two drive shafts can be releasably connected to one another via a clutch. This is.
- an upset folding machine according to the invention with electronic control with programmable folding types and programmable folding leg sizes in which only one drive motor is provided and a temporary decoupling of the work roller drive from the bogie drive is desired.
- Another feature of the invention provides for driving the work rolls a drive shaft that is rotatable relative to the bogie and on which a wheel that is in engagement with at least one drive wheel of the work rolls rotating with the bogie is arranged in a rotationally fixed manner.
- This training is an advantage in an edging folding machine, in which the work rolls and the bogie are driven by separate drive motors.
- This design also enables a change in the transmission ratio between work roll speed and bogie speed by changing the motor speed of a drive motor or both drive motors to control the fold leg lengths with different fold length.
- the drive shaft rotatable relative to the bogie for the work rolls can also be coupled to the bogie drive.
- This enables an embodiment of the upset folding machine in which a single drive motor drives two belt drives arranged in parallel, one of which drives the bogie directly while the other belt drive drives the drive shaft for the work rolls.
- the transmission ratio between work roll speed and bogie speed is determined by the two belt drives.
- the drive of the drive shaft for the work rolls can be uncoupled from the bogie drive.
- This enables the upset folding machine to be designed with a single drive motor and two belt drives for bogie or work rolls arranged in parallel, one of which can be switched on or off, for example, via a clutch on the motor drive shaft.
- a further embodiment of the invention provides that the bogie has two rotating heads arranged at the opposite ends of the work rolls, rotatably mounted in the machine frame, at least one of which is designed as a drive rotating head in which the drive transmission for the work rolls is arranged , and that in each rotary head against the force of at least one spring relative to it movable guide elements are provided, in each of which at least one of the bearing axes is received by at least one of the displaceable work rolls.
- This design according to the invention enables a particularly compact construction of the upset folding machine.
- Movable guide elements for the displaceable work rolls allow the work rolls to be displaced during the folding in a manner adapted to the thickness of the respective folding material, so that folding material of different thicknesses can be folded directly in succession.
- the spring-loaded displacement of the guide elements takes place independently of one another in the two rotary heads and also allows the folding of stapled material on one edge.
- the guide elements can be designed as slides which are essentially radially displaceable in the rotary heads.
- the displacement of a guide element and the associated work roll leads to an opening of the roll nips on both sides of this work roll.
- the guide elements are designed as pivot levers with pivot axes parallel to the bogie axis.
- the bearing axis of an adjacent work roll can advantageously be designed as a pivot axis of the pivot lever.
- the guide elements can be disc-shaped and can be tilted about at least one tilt axis that is eccentric to the bearing axis of the associated work roll.
- two adjacent guide elements can be connected to one another by a common spring.
- all of the guide elements of a rotary head can be connected to one another by a common spring.
- the spring connecting all the guide elements of a rotary head is designed as an endless ring made of elastic material running along the outer circumferences of the guide elements.
- This ring can be a rubber ring or a rubber hose or a helical tension spring, which counteracts the displacement of the work rolls in the bogie.
- the turret has a frame adjacent the ends of the work rolls.
- disc has the bearing axles of the work rolls and on the side facing away from the work rolls the guide elements including the springs acting on them are arranged. This design prevents the entry of folded material between the guide elements and springs on the one hand and the discharge of abrasion or dirt from the rotary head into the interior of the folding machine to be passed through by the folded material.
- the drive turret has a frame disk which is adjacent to the ends of the work rolls, through which the bearing axles of the work rolls pass and on whose side facing away from the work rolls the drive wheels for the drive rolls and their common gear are arranged are. This design prevents folded goods from entering the gearbox of the drive turret.
- a further embodiment of the invention provides that the mechanical control device has at least one cam disk which is coaxial with the bogie axis and which is stationary or lockable with respect to the machine housing and which contains at least one control cam which has at least one cam section which is used to forcibly displace one of the work rolls is assigned, and that the control device comprises at least one control element which can be brought into engagement with the control cam and is assigned to the guide element of the associated work roll which is forcibly relocated.
- the cam disc can be a board of the machine housing which is arranged perpendicular to the bogie axis and which contains a self-contained guide track which faces the bogie axis and which is associated with the forced displacement of the work rolls and on which the external control elements of against the bogie axis resiliently pressed out guide elements of the work rolls rotating with the bogie.
- a further feature of the invention provides that the cam section of the control cam associated with the forced displacement of a work roll as from one to the bogie axle.
- This coaxial cylinder protruding outwardly projecting cam is formed. This configuration is advantageous in the case of guide elements which are spring-biased in the direction of the rotary axis, the internal control elements of which come into engagement with the expanding cam during rotation of the bogie.
- control device for the simultaneous forced displacement of two adjacent work rolls has a control element which can be brought into engagement with the control cam and the guide elements of the two adjacent work rolls at the same time and is designed as an expansion element for moving the two guide elements apart.
- This design allows this roll gap to be opened uniformly on both sides of the roll gap arranged between the two work rolls by the expansion element which can be displaced in the plane of the roll gap.
- a further feature of the invention provides that a fold deflector, which projects into the bogie between the four work rolls and is assigned to the second folding nip and can be determined with respect to the machine housing, preferably in different angular positions, is provided.
- This design is particularly advantageous in the case of an edging folding machine with one pass of folded goods per 180 "rotation of the bogie and allows the fold deflector to be set in accordance with the desired type of fold.
- a further feature of the invention provides that a fold deflector is provided which projects into the bogie between the four work rolls and is assigned to the second folding nip and can be locked in relation to the bogie, preferably in different angular positions.
- This configuration is advantageous in the case of an edging folding machine with one pass of folded goods per 360 ° rotation of the bogie and allows the deflector to be adjusted depending on the type of fold.
- the folded material pull-in device can counteract two movably arranged in the machine frame and resiliently biased towards the bogie the work rolls of the bogie have press-on conveyor rolls. These conveyor rollers can be individually displaceably guided in the longitudinal slots provided in the machine frame.
- a further feature of the invention provides that the two conveyor rollers are rotatably mounted in a pressure frame which is movably guided in the machine frame and spring-biased towards the bogie and which carries lateral guide rollers for engagement with guide surfaces which on outer surface surfaces of the bogie are formed. This design simplifies the interaction between the fold-in device and the bogie.
- the guide surfaces of the bogie can, according to the invention, have a curve section in the area of the work rolls forming the second fold gap in each case, which keeps the pair of feed rollers away from the work rolls forming the second fold gap.
- the folded material pull-in device has an outer guide body, which is preferably connected to the pressure frame, as the outer boundary of a folded material feed shaft, the inner boundary of which is formed by an inner guide body which is on the The bogie is mounted in the edge area of the bogie assigned to the second folding gap and rotates with it.
- the fold-in device can have a lay-on mark for the fold, preferably provided with a fold sensor.
- This training facilitates the correct input of the folded material.
- An embodiment with a folded goods sensor enables the upset folding machine to be actuated by the folded goods themselves.
- the contact mark can, according to the invention, be arranged on a stop bracket which can be pivoted with respect to the bogie axis and can be fixed with respect to the machine housing.
- a gear is provided connecting the pivotable stop bracket of the folded material pull-in device with the rotatable cam of the mechanical control device. This allows the first and second folds to be positioned in accordance with the respective length of the folded goods.
- a further feature of the invention provides that a jacket is provided in the machine frame which forms a stop-free folded material guide, surrounds the bogie and only leaves the area of the folded material pull-in device and the folded material ejection.
- This design permits a very compact construction of the upset folding machine, in which only the space required for the folding material feed is present between the bogie and the casing.
- FIG. 1 shows a longitudinal section through a first embodiment of an upset folding machine with two rotary heads
- FIG. 2 shows a side view of the upset folding machine of FIG. 1
- FIG. 3 shows a section through the upset folding machine of FIG. 1
- FIG. 4 shows a simplified 1 shows a section II of FIG. 1 with tiltable guide elements for the displacement of the work rolls and an expansion cam of the control device for forcibly displacing the work rolls
- FIG. 5 shows a section through an expansion cam of the mechanical control device movably fastened on a rotary head axis for forcibly displacing the work rolls
- FIG 6 shows the embodiment of FIG. 1 in the starting position with an intake shaft for the folded goods
- FIG. 1 shows a longitudinal section through a first embodiment of an upset folding machine with two rotary heads
- FIG. 2 shows a side view of the upset folding machine of FIG. 1
- FIG. 3 shows a section through the upset folding machine of FIG. 1
- FIG. 4 shows a simplified 1 shows a section II of
- FIG. 7 shows a folded goods deflector in an oblique view
- FIG. 8 shows a section through a further embodiment of a compression folding machine with levers pivotable in the bogie for forcibly displacing the work rolls
- 9 schematic h shows a side view of the edging folding machine of FIGS. 8, 10
- FIG. 11 shows the drive-side end of the upset folding machine of FIG. 10 in section
- FIG. 12 schematically shows a side view of a further embodiment of an upset folding machine with carriages movable in the bogie 13 schematically shows a side end of the upset folding machine of FIG. 12 in front view
- FIG. 12 schematically shows a side view of a further embodiment of an upset folding machine with carriages movable in the bogie
- FIG. 14 shows the drive-side end of the upset folding machine of FIG. 12
- FIG. 15 shows a view of the drive side of the upset folding machine of FIG. 1
- the 16-23 each schematically shows the roll positions of a compression folding machine according to the invention including the folded goods during a 360 ° folding process
- FIGS. 24 and 25 roll positions during a 180 ° folding process
- FIG. 26 a zigzag fold and FIG. 27 Wrap fold.
- the machine frame 1 essentially consists of a base plate 10 on which two side plates 11, 12 perpendicular to the base plate 10 are arranged at a distance from one another, between which the bogie 2 carrying the work rolls 3, 4, 5, 6 is arranged .
- the work rolls 3, 4, 5, 6 are provided on their two end faces with bearing axles 3a, 4a, 5a, 6a, which are rotatably mounted in lateral rotary heads 13, 14 of the bogie 2.
- the two rotary heads 13, 14 are rotatably supported in the side plates 11, 12 by means of rotary head axes 21, 22.
- Each rotary head 13, 14 has a frame disc 15, 16, which is adjacent to the respective end faces of the work rolls 3, 4, 5, 6, through which the bearing axes 3a, 4a, 5a, 6a of the work rolls pass and which on the respective one Turret axis 21, 22 are rotatably mounted.
- each rotary head 13, 14 four disk-shaped guide elements 17, 18, 19, 20 are provided on the side of the frame disks 15, 16 facing away from the ends of the work rolls 3, 4, 5, 6, in each of which one of the bearing axes 3a, 4a, 5a, 6a of the work rolls 3, 4, 5, 6 is rotatably supported.
- the guide elements 17, 18, 19, 20 lie on their side facing the rotating head axis 21, 22 in pairs on four tilting axes 17a, 18a, 19a, 48, which are circular on the frame disc 15, 16 around the rotating head axis 21, 22 are arranged distributed.
- the recesses of the guide elements 17, 18, 19, 20 assigned to the tilt axes 17a, 18a, 19a, 48 are each arranged eccentrically to the bearing axis 3a, 4a, 5a, 6a of the work rolls 3, 4, 5, 6 mounted in the respective guide element.
- Each of these tilting axes 17a, 18a, 19a, 48 is common to two adjacent guide elements 17, 18, 19, 20 and is arranged in the respective rotary head 13, 14 in the area of each roll gap which is formed by the work rolls of the adjacent guide elements.
- the three tilt axes 17a, 18a, 19a are fastened to the respective frame plate 13, 14, while the fourth tilt axis 48 is designed as a control element of the mechanical control device for forcibly displacing work rolls.
- the fourth tilt axis 48 is formed by a roller which can be displaced in the bogie and which can be pressed between the two guide elements 17 and 20 as a spreading element in order to tilt the guide elements 17 and 20 or the work rolls 3 and 6 rotatably mounted therein.
- each individual work roll can be lifted alternately from the circumference of the two adjacent work rolls. This can be caused on the one hand by the folded material itself, for example by staples or the like, and on the other hand can be caused by the mechanical control device for forcibly displacing work rolls.
- corresponding recesses are provided in the frame disks 15, 16. see that allow these tilts.
- the rotary head shown on the left in FIG. 1 is designed as a drive rotary head 13 which on the one hand contains the drive for the work rolls 3, 4, 5, 6 and on the other hand is connected to a drive motor.
- This drive rotary head 13 has a rotary shaft axis 21 designed as a hollow shaft, which is rotatably supported in the side plate 11 of the stationary frame 1 and passes through this side plate 11 from the inside to the outside.
- a roller drive shaft 23 designed as a full shaft leads through the rotary head axis 21 and carries at its inner end a drive pinion 24 for driving the work rolls 3, 4, 5, 6 and at its outer end via a gear wheel 29 with the (not shown) Engine is connected.
- the drive pinion 24 seated at the inner end of the roller drive shaft 23 meshes with the two gear wheels 25, 26, each seated on one of the bearing axes 4a and 6a.
- the drive gear wheels 27 and 28 for these also sit on these bearing axes 4a and 6a Work rolls 4 and 6, which in turn mesh with the drive gears (not shown) which are seated on the bearing axles 3a and 5a of the two adjacent work rolls 3 and 5.
- the drive rotary head 13 is driven when the rotary head axis 21 is stationary by means of a belt drive 13a over a lateral surface 42 of the bogie disc 15.
- the belt drive 13a is driven by a motor drive shaft 13b, which also drives a belt drive 23a for driving the roller drive shaft 23 (FIG. 15).
- the tilting movement of the four guide elements 17, 18, 19, 20 acts on a tension spring 30 or an O-ring opposite, which runs along the outside of the four guide elements and the four guide elements 17, 18, 19, 20 in contact with the tilting axes 17a, 18a, 19a, 48 and thus also the four work rolls 3, 4, 5, 6 in mutual investment.
- the tension spring 30 also causes the guide elements 17, 18, 19, 20 to bear against the associated tilting axes 17a, 18a, 19a of the frame plate 15, which not only allow the four guide elements to tilt, but moreover the non-positive connection between them the frame disc 15 and the work rolls 3, 4, 5, 6 form.
- the guide elements are held in contact with their tilting axes by the tension spring 30 until at least one guide element is tilted by the folding material which pushes apart the adjacent work rolls or by an expansion cam 8 of the mechanical control device for forcibly displacing work rolls.
- This spreading cam 8 is seated on the rotary head axis 21 which is rotatably mounted in the side plate 11 and, together with the roller 48, forms a mechanical control device for forcibly displacing the work rolls 3 and 6.
- the rotary head 14 shown on the right in FIG. 1 has, besides the frame disk 16, the four guide elements 17, 18, 19, 20, the tilting axes 17a, 18a, 19a and the roller 48, and the rotary head axis 22 which is rotatably mounted in the side plate 12 also a fold deflector 31 parallel to the axis of rotation of the bogie 2, which is attached to an adjusting axis 31 'coaxial to the axis of rotation, and projects into the free space between the four work rolls 3, 4, 5, 6.
- This fold deflector 31 has a deflecting surface 32 (FIG. 7) which is arranged eccentrically to the axis of rotation of the bogie and parallel to it, the angular position of which is adjustable by means of an adjusting device (not shown).
- the pressure frame 7 contains the two conveyor rollers 33, 34, which have a smaller outer diameter than the work rollers 3, 4, 5, 6, and is displaceable in the machine frame and is pivotably supported to a limited extent via the axis 7a which is displaceably mounted in the side plate 12.
- the conveyor rollers are operated by means of a tension spring 7 'acting on the pressure frame. biased for engagement with the respective work rolls 3, 4, 5, 6 of the bogie.
- the lateral surface 35 of the frame disk 15 is designed as a guide surface, on which control rollers 36, 37 seated on the bearing axes 38, 39 of the conveyor rollers 33, 34 roll, which the conveyor rollers 33, 34 roll over the guide bodies 40 during the rotation of the bogie 2 of the feed chute 41.
- the bogie itself is surrounded by a jacket 43, which only leaves the area of the folded goods in and the folded goods out.
- the lateral surface 35 of the frame disk 15 or 16, which is designed as a guide surface for the conveying rollers 33, 34, can have a curved section 35 ', 35''in the area of the work rolls 3, 4, and 5, 6 respectively forming the second folding gap. have, which keeps the two conveyor rollers 33, 34 away from the two working rollers 3.4 and 5.6 forming the second nip.
- a folded goods sensor 46 ' is located on the level of the contact mark 46 of the stop bracket 45.
- FIG. 4 further shows an exemplary embodiment of the mechanical control device for the forced displacement of work rolls with a radial movement of a spreading element 48 designed as a roller as a control element of the control device, oriented for a 360 ° rotation of the bogie 2.
- FIG. 5 shows an embodiment of a rigid rotary head shaft 21 with a hollow shaft 49 rotatably mounted thereon and designed as a control cylinder of the control device, which on its inner end facing the bogie 2 has an expanding cam 8 for engagement with the control elements of the guide elements 17 , 18, 19, 20 and at the outer end of which the pivotable stop bracket 45 is fastened.
- the starting position of the four work rolls 3, 4, 5, 6 in the bogie 2 with the feed chute 41 and the folding material 9 is shown in FIG. 6.
- the folding material is between the two between the frame plates 15, 16 and parallel to the axes of rotation the work roll attached and with the bogie 2 running guide body 40 and the guide body 50 up to the contact mark 46 of the stop bracket 45 inserted.
- the material to be folded 9 is lifted from the contact mark 46 by the guide body 50 with the aid of the pressure frame 7 guided to the bogie 2 and carrying the conveyor rollers, and is then further pressed in by pressing the work roller 4 against the conveyor rollers drawn (Fig. 17, 18).
- FIGS. 8 and 9 show a further embodiment of an upset folding machine with a bogie 52 which is rotatably mounted in a stationary machine frame 51 and which contains four parallel rotating work rolls 53, 54, 55, 56 of the same outside diameter, which with two in the machine frame Stell 51 slidable conveyor rollers 57, 58 cooperate, which act as feed rollers and as upsetting rollers.
- each rotary head 63, 64 two arc-shaped swivel brackets 67, 68 are provided on the side of the frame disk 65, 66 facing away from the ends of the work rolls 53, 54, 55, 56, in each of which the bearing axes 53a, 54a and 55a, 56a of two adjacent work rolls 53, 54 and 55, 56 are rotatably mounted and which a forced displacement of the one work roll 54 and 55 by pivoting the swivel bracket 67, 68 around the bearing axis Allow 53a or 56a of the other work roll.
- the rotary head shown in FIG. 8 is designed as a drive rotary head 63 which on the one hand contains the drive for the work rolls 53, 54, 55, 56 provided with the toothed wheels 72, 75, 76, 77 and on the other hand with a (not dar ⁇ shown) drive motor is connected.
- This drive rotary head 63 has a divided rotary head drive shaft which is rotatably mounted in the side wall 62 of the machine frame 51 and passes through this side wall 62 from the inside to the outside.
- the turret drive shaft consists of a solid shaft 69, which carries the frame plate 65 at its inner end and a clutch 70 at its outer end, and a coaxial hollow shaft 71, which has a drive pinion 72 for the drive at its inner end the work rolls 53, 54, 55, 56, which meshes with a gear 75 seated on the bearing axis 56a.
- the hollow shaft 71 is connected to the clutch 70.
- a gear 73 sits on the outer part of the hollow shaft 71 and meshes with a pinion 74 driven by the motor (not shown).
- both rotary heads 63 and 64 on the one hand, the two work rolls 53 and 54 are connected to one another by a first swivel bracket 67 and, on the other hand, the two work rolls 55 and 56 are connected to one another by a second swivel bracket 68.
- a first swivel bracket 67 and 68 the two work rolls 53 and 56 are connected to one another by a first swivel bracket 67 and, on the other hand, the two work rolls 55 and 56 are connected to one another by a second swivel bracket 68.
- This pivoting movement is counteracted by a tension spring 78 which engages the two pivoting levers 67, 68 on that end region which is adjacent to the bearing axis 54a or 55a of the work roller 54 or 55 which can be pivoted with respect to the bogie 52.
- the tension spring 78 keeps the two pivotable work rolls 54, 55 in mutual contact until the two swivel levers 67, 68 are pressed apart by a spreading element 79 of the mechanical control device for forcibly displacing work rolls become.
- This expansion element 79 is seated on a sleeve-like extension 80 projecting inwards from the side plate 62 and formed as a control cylinder and has two expansion cams 81, 82 which are diametrically opposite one another and with control elements 83 provided on the inside of the pivoting levers 67, 68 , 84 cooperate.
- the rotary head 64 shown on the right in FIG. 8 has a fold deflector 86 which is parallel to the axis of rotation of the bogie 52 and rotates with the rotary head 64 and which is fastened to an adjusting axis 87 which is coaxial with the axis of rotation and in which, between the four work rolls 53, 54 55, 56 the free space protrudes.
- This folded material deflector 86 has a flat deflecting surface which is arranged eccentrically to the axis of rotation of the bogie and parallel to it, the angular position of which can be adjusted relative to the rotating head 64 by means of an adjusting device 89 which is only shown schematically.
- the conveyor rollers 57, 58 which act as feed rollers and upsetting rollers, have a smaller outside diameter than the four work rollers 53, 54, 55, 56 and are displaceably mounted in the machine frame 51. Both conveyor rollers 57, 58 are each biased into their respective working position by means of compression springs for engagement with one of the working rollers 53, 54, 55, 56 of the bogie. 8 shows the compression springs 92, 93 which act on the lateral bearing bushes 90, 91 of the conveyor roller 58 which are displaceably arranged in the side plates 61, 62 of the stationary frame 51.
- the bogie 52 carrying the work rolls 53, 54, 55, 56 with its two rotary heads is rotatably mounted on a rigid rotary head axis 94 of a side wall 95 of the machine frame 51 ⁇ device.
- 11 shows the drive turret 96 of this bogie 52.
- This drive turret 96 has a frame disk 97 which is arranged adjacent to the ends of the work rolls 53, 54, 55, 56 and is rotatably mounted on the turret axis 94 and which is supported by the bearing axles 53a, 54a, 55a, 56a.
- the frame plate 97 is over a, on the drive shaft 98th seated drive pinion 99, which meshes with an internally toothed gear 100 fastened to the frame disk 97, driven by a motor, not shown.
- the drive transmission from the frame disk 97, which is rotated via the drive pinion 99, to the drive gear wheels of the work rolls takes place via a gear wheel 103, which is arranged parallel to the drive gear wheel 102 and is also seated on the bearing axis 56 a of the work roll 56 and which has a seat on the rigid rotating head axis 94 stationary gear 104 combs.
- the two rotary heads of the bogie 52 each contain two swivel brackets 67, 68, in each of which the bearing axes 53a and 54a or 55a and 56a of two adjacent work rolls 53 and 54 or 55 and 56 are rotatably mounted.
- the pivot bracket 67 in which the bearing axles 53a and 54a are rotatably mounted, can be pivoted about the bearing axis 54a
- the pivot bracket 68 in which the bearing axles 55a and 56a are rotatably supported, can be pivoted about the bearing axis 56a.
- the swiveling movement of the two swiveling levers 67, 68 and thus the swiveling movement of the two swiveling work rolls 53 and 55 is achieved on the one hand by two compression springs 105, 105 arranged between the two swiveling levers 67, 68 and pushing them apart at opposite ends 'and on the other hand controlled by a self-contained guideway 106 which surrounds the two swivel levers 67, 68 and which is directed towards the bogie axis of rotation and along which control elements 107, 108 slide on the swivel levers 67, 68.
- FIGS. 12 to 14 show a further exemplary embodiment of an upset folding machine according to the invention, which, like that of FIGS. 8 to 11, has a stationary machine frame 51 with a displaceably mounted feed roller 57, a displaceably mounted upset roller 58 for the folded material 9 and a in the machine frame 51 has a rotating frame 52 which rotates around a fixed axis of rotation and which consists of two lateral rotating heads 63, 64 in which the four parallel working rolls 53, 54, 55, 56 of the same outside diameter with their front bearing axes 53a, 54a, 55a, 56a rotary are stored in cash.
- both lateral rotary heads 63, 64 there are provided radially extending guideways for guiding elements designed as radially displaceable slides 109, in which the work rolls 53, 54, 55, 56 with their bearing axes 53a, 54a, 55a, 56a are each individually rotatable ⁇ device.
- the carriages 109 arranged in a star shape around the axis of rotation of the bogie are connected to one another in pairs by tension springs 110, which pull the carriages 109 inwards radially to the axis of rotation of the bogie.
- the bearing axles 53a, 54a, 55a, 56a of the work rolls 53, 54, 55, 56 extend axially through the carriages 109 and carry rollers 53b, 54b, 55b, 56b on their end sections protruding laterally from the carriages, which cause the radial displacement the slide 109 form control elements which rest on a radially outward-pointing guide surface of an expansion element 79 which, as in the exemplary embodiment in FIGS. 8 and 9, rests on a sleeve-like projection projecting inwards from the side plate 62 of the stationary frame 51 ⁇ set 80 sits and has two expansion cams 81, 82.
- FIG. 14 shows the drive turret 64 which carries the slides 109 and which, with regard to the drive transmission from the drive pinion 74 via the toothed wheels 72, 73 located on the hollow shaft, to the drive toothed wheels (not shown) seated on the bearing axes of the work rolls does not differ from the drive turret of FIG. 8.
- the work rolls 53, 54, 55, 56 are displaced by the radial displacement of the carriages 109 derived from the expansion element 79 or its cams 81, 82 via the guide rollers 53b, 54b, 55b, 56b in the frame disks 65, 66 of the rotary heads 63, 64 against the action of the tension springs 110.
- the drive sprockets of the work rolls 53, 54, 55, 56 are expediently designed in such a way that, despite the slight increase in the center distance caused by the displacement of the slide ⁇ des, which corresponds approximately to the maximum thickness of the folded material 9, do not come out of engagement or jam.
- the drive can be used for larger folding machines and large folding material thicknesses the work rolls via toothed belts or the like.
- the rotary head 63 or drive rotary head 64 of the upset folding machine of FIGS. 12 to 14, which has the radially movable carriages 109 for mounting the rotary axes 53a, 54a, 55a, 56a of the work rolls 53, 54, 55, 56, can be similar to the drive rotary head 96 of FIG 11 can be rotatably mounted on a rigid rotary axis fixedly attached to the stationary frame 51.
- FIG. 16-23 are successive positions of the bogie of a paper folding machine according to the invention when folding a zigzag fold (FIGS. 16-21, 23) and a wrap fold (FIGS. 16-20, 22) at a 360 ° angle.
- Working rotation Fig. 16-23) and with a 180 ° working rotation (Fig. 24, 25) of the bogie.
- 26 shows a zigzag fold
- FIG. 27 shows a wrap fold.
- FIG. 27 shows a wrap fold.
- an upset folding machine with a purely mechanical control, a stationary expanding cam on a rigid rotating head axis, a forced coupling of work rolls and bogie with a constant transmission ratio between work roll speed and bogie speed and a rigid contact mark.
- a forced coupling of work rolls and bogie with a constant transmission ratio between work roll speed and bogie speed and a rigid contact mark.
- only folded goods with a constant format and with constant folding leg lengths can be folded.
- the paper is introduced here up to the contact mark 46, and a folded goods sensor then sets the drive in motion (FIG. 16).
- the lateral surface 35 of the frame disks 15, 16, which is designed as a guide surface, allows the conveyor rollers 33 and 34 to be pivoted to the bogie, where the folded material lying between the conveyor rollers and the work roller 4 is Impact of the work roll 4 to the conveying roller 34 is conveyed further into the folding device (FIG. 17).
- the constant transmission ratio between work rolls and bogie causes the work roll 5 to stop against the conveying roll 34 exactly at the point at which it is turned in connection with the counter-driven work roll 4 and conveying roll 33 to form the bogie first Falschschlau ⁇ fe and for their absorption by the work rolls 4 and 5 the paper must be returned against the forward direction (Fig. 19).
- the two work rolls 3 and 6 become together again exactly at that point after passing the stationary expanding cams 8 due to the constant transmission ratio ⁇ folding flap on which the material to be folded must be returned to form the second folding loop in connection with the counter-rotating work roll pair 4, 5 (FIG. 21).
- the position of the folded goods deflector 31 determines the pickup of the folded goods by the pair of work rolls 5, 6 (FIG. 21) or 3, 4 (FIG. 22) and thus the type of fold (folded fold FIG. 22, zigzag fold FIG. 21).
- the transmission ratio between work rolls and bogie remains constant, the contact mark 46 with the folded goods sensor 46 'and those which are either rotatably mounted on the rigid rotating head axes 21, 22 (FIG. 5) or on the rotating head axes rotatably mounted in the stationary frame 21, 22 seated expanding cams 8 are, however, manually adjustable. If a larger format is folded, the contact mark 46 is guided away from the first fold point by exactly the amount by which the first fold leg is compared to that of the smaller format is bigger. Due to the fixed sequence of movements of the bogie 2 and the conveyor rollers 33, 34, the first folding loop always forms at the same point in the feed shaft 41 of the folding device.
- the spreading cams 8, which can also be moved further in the direction of rotation of the bogie 2, also make it possible, owing to the later folding of the work rolls 3, 6, also for a longer second folding leg with a constant translation ratio of the work roll-bogie.
- the contact mark 46 and the expanding cams 8 and the rotating head axes 21, 22 are again rigidly supported.
- the control takes place by means of a control magnet which decouples the drive of the bogie 2 from that of the work rolls 3, 4, 5, 6.
- the drive of the bogie is briefly interrupted, for example, for the first now longer folded goods leg, while the longer paper size of the first folded goods leg is drawn in by the work roll 4.
- the first folding station is still in the same place.
- the drive of the bogie 2 is also briefly interrupted before it passes the rigid expansion cams 8 and the longer paper dimension of the second leg of the folded goods is drawn in by the work rolls 4, 5.
- this embodiment also manages without flow pockets and without a plurality of electromagnets for actuating the flow limiter.
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Medicines Containing Plant Substances (AREA)
- Agricultural Machines (AREA)
- Soil Working Implements (AREA)
- Seal Device For Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0206092A AT401046B (en) | 1992-10-19 | 1992-10-19 | SOLD FOLDING MACHINE |
AT2060/92 | 1992-10-19 | ||
PCT/AT1993/000154 WO1994008882A1 (en) | 1992-10-19 | 1993-10-13 | Buckle folding machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0664764A1 true EP0664764A1 (en) | 1995-08-02 |
EP0664764B1 EP0664764B1 (en) | 1998-04-22 |
Family
ID=3526925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93922855A Expired - Lifetime EP0664764B1 (en) | 1992-10-19 | 1993-10-13 | Buckle folding machine |
Country Status (11)
Country | Link |
---|---|
US (1) | US5803890A (en) |
EP (1) | EP0664764B1 (en) |
JP (1) | JP2802341B2 (en) |
KR (1) | KR100310075B1 (en) |
AT (2) | AT401046B (en) |
AU (1) | AU676215B2 (en) |
CA (1) | CA2147256C (en) |
DE (1) | DE59308452D1 (en) |
DK (1) | DK0664764T3 (en) |
ES (1) | ES2118261T3 (en) |
WO (1) | WO1994008882A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6899664B2 (en) * | 2003-09-24 | 2005-05-31 | Gregory R. Gale | Device for returning folded paper and folding apparatus including same |
AT500981B1 (en) | 2004-11-02 | 2006-10-15 | Zechner Karl | Buckling |
EP1803585B1 (en) * | 2005-12-31 | 2010-02-10 | Neopost Technologies SA | Inserter having a motor and a controlled coupling |
AT525101A1 (en) | 2021-05-25 | 2022-12-15 | Karl Zechner | Folding machine for paper and soft folding goods |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU441773A1 (en) * | 1973-07-12 | 1976-05-25 | Типография Издательства "Известия" | Faltsapparat percussion-type newspaper rotary printing machines |
JPS527800A (en) * | 1975-07-08 | 1977-01-21 | Toshiba Corp | Processing equipment for paper forms |
SE411197B (en) * | 1977-10-27 | 1979-12-10 | Noren Arne Ingvar | DEVICE FOR BENDING A MATERIAL, FOR EXAMPLE A NEWSPAPER, AT AN ANGLE OF 180 |
DE2757182C2 (en) * | 1977-12-22 | 1983-09-29 | Mathias Bäuerle GmbH, 7742 St Georgen | Buckle folder |
DE3266459D1 (en) * | 1981-02-26 | 1985-10-31 | Hasler Ag | Folder |
AT387952B (en) * | 1987-12-22 | 1989-04-10 | Zechner Karl | FOLDING DEVICE |
-
1992
- 1992-10-19 AT AT0206092A patent/AT401046B/en not_active IP Right Cessation
-
1993
- 1993-10-13 AU AU51719/93A patent/AU676215B2/en not_active Ceased
- 1993-10-13 US US08/424,253 patent/US5803890A/en not_active Expired - Lifetime
- 1993-10-13 KR KR1019950701495A patent/KR100310075B1/en not_active IP Right Cessation
- 1993-10-13 JP JP6509430A patent/JP2802341B2/en not_active Expired - Fee Related
- 1993-10-13 WO PCT/AT1993/000154 patent/WO1994008882A1/en active IP Right Grant
- 1993-10-13 EP EP93922855A patent/EP0664764B1/en not_active Expired - Lifetime
- 1993-10-13 ES ES93922855T patent/ES2118261T3/en not_active Expired - Lifetime
- 1993-10-13 AT AT93922855T patent/ATE165309T1/en not_active IP Right Cessation
- 1993-10-13 DK DK93922855T patent/DK0664764T3/en active
- 1993-10-13 DE DE59308452T patent/DE59308452D1/en not_active Expired - Lifetime
- 1993-10-13 CA CA002147256A patent/CA2147256C/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9408882A1 * |
Also Published As
Publication number | Publication date |
---|---|
KR100310075B1 (en) | 2001-12-28 |
KR950703479A (en) | 1995-09-20 |
ATA206092A (en) | 1995-10-15 |
CA2147256C (en) | 2005-01-18 |
DE59308452D1 (en) | 1998-05-28 |
ATE165309T1 (en) | 1998-05-15 |
AT401046B (en) | 1996-05-28 |
JPH07507757A (en) | 1995-08-31 |
WO1994008882A1 (en) | 1994-04-28 |
AU5171993A (en) | 1994-05-09 |
AU676215B2 (en) | 1997-03-06 |
DK0664764T3 (en) | 1999-02-15 |
ES2118261T3 (en) | 1998-09-16 |
EP0664764B1 (en) | 1998-04-22 |
US5803890A (en) | 1998-09-08 |
JP2802341B2 (en) | 1998-09-24 |
CA2147256A1 (en) | 1994-04-28 |
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