CA2181752C - Cross perforator adjustment mechanism - Google Patents
Cross perforator adjustment mechanismInfo
- Publication number
- CA2181752C CA2181752C CA 2181752 CA2181752A CA2181752C CA 2181752 C CA2181752 C CA 2181752C CA 2181752 CA2181752 CA 2181752 CA 2181752 A CA2181752 A CA 2181752A CA 2181752 C CA2181752 C CA 2181752C
- Authority
- CA
- Canada
- Prior art keywords
- cylinders
- housing
- housings
- cylinder
- web
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- WYWHKKSPHMUBEB-UHFFFAOYSA-N 6-Mercaptoguanine Natural products N1C(N)=NC(=S)C2=C1N=CN2 WYWHKKSPHMUBEB-UHFFFAOYSA-N 0.000 description 3
- 229940095374 tabloid Drugs 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention concerns a device for processing a web of material entering into afolding unit prior to severing single products from said web of material. The folding unit has a processing unit with two cooperating cylinders. The cylinders are supported by housings mounted in a frame of the folding unit. A device for changing the effective diameter as well as the center to center distance between said cooperating cylinders upon changes of cut-off length, allows for obtaining a match of the circumferential motion of said cylinder to secure a clean perforation position without any gain.
Description
` 21 81 752 Cross Perforator Adjustment M~rh~nic..
Fi.-l~i r,f the Tnventinn The present invention concerQs a deYice for p.,lru~ , or p.,lr~ ' ~ another 5 processing operation on a web of material entering into a folder.
T~ ,..ll nf thP Tnventinn U.S. Patent No. 2,832,411 discloses a ~ rul~ul~ blade holding means. A cylinder comprises a io.l~,jl.-.l...~l recess, witb the recess Iying at an angle with respect to the 10 axis of said cylinder. A blade member is seated in the recess and lr,n~itll iin~liy moving clamping devices in the recess abut the blade member. The clamping devices are formed so as to grip the blade LII..~ by relative movement of said devices. Thus, the aligntnent of said blade member is ~, efrecting adjustment of the same. Simplified removal and l~ of a blade is possible 15 should such be necessary.
U.S. Patent No. 4,055,101 shows a roll fed rotating web device with improved perforator. The perforator is iU~Ul~Jo ' in a standard perforating cylinder which rotates during the process of perforation. A plurality of perforating blades are20 mounted in the perforaîing cylinder and several Ul.~IU.~.U.llL~ relating to spring biased positioners of the perforating blades are disclosed. The blade seatings each comprise a support element which is d~roll~ by pressure applied to the p~.rul~lLu~ blade.
25 In tbe technical field related to cut-off-length s. ij.lctm,~ntc in folders, a significant 218t7~2 problem has been cAy~ d in that these a ~ result in a change in gain or overspeed of p~lrula~ cylinders. The change in gain is not acceptable during cross p~.ru~aLill~ since tearing and p~lrO~ Pl~ in the products, ly severed from the web of material, occur. If, for example upon one s revolution of the p.,lru,ali,-g-knife cylinder, three y~,rU-dlio.~ are performed, the exact position of each of the cross yCIru.~iùl-~ cannot be maintained due to changes in gain resulting in a poor quality of double-parallel-folded-products.
L' I.f th~ TnvPnti~n 10 An object of the present invention is to provide a y~lru,~lil,g unit for variable cut-offs without gearing or part changes in the unit.
rLLLLh~ lol~ it is an object of the present invention to eliminate gain changes due to speed changes or cut-off length u~l;..~,,,,. .,,~
Anotber object of the present invention is to improve p~ru~dlillg quality by CliL\~ illg web-tearing and y~-ru-~Lill~ elnne~ti~ nc A further object of the present invention is to mamtain the p~.ru~ , suRaces on 2 o the center line of the paper path, tbus minimizing batting of the ribbons.
According to the invention, an apparatus for processing a web of material entering into a folding unit prior to severing single products from said web of material,includes:
- a processing unit having two ~ JIJ' ~ cylinders, - said cylinders being supported in respective housmgs in a frame of said folding unit and - a device for changing the effective diameter and changing the center to _ _ _ _ _, . , .. . . ,,, ,, .,, , , , , , , . , _ . , , _ , center distance between said ~u~uy~.d~ v cylinders ~ . f.~ -~y upon variations in speed or cut-off.
By means of a c~ according to the present invention, the ~~JlJ .
5 cylinders mamtain a zero gain which produces an accurate perfûration and eliminates y~ r. .., ~; - Pl- ~r~vf I ;~ during contact of perforating members on said .fJuy. ~ V cylinders. Since both ~ouy. .~li.¢ cylinders are mounted movably, theweb of material passing will always be m the center of the nip between both .ouy ~ V cylinders, thus enhancing cross perforating accuracy.
lû
The housings supportmg the respective ends of said o~,y~ cylinders are mounted in actuators, which move e~rPntnr~lly. Since the actuators engage each other upon a rotational movement - in clockwise as well as in ~U~ t~ O~iD~
direction - the movement of one actuator C~ f ol~cly results in a Cu~ yùllvillg 15 movement of the remaining actuator. Due to the eccentric movement of the ~~ v cylinders, driving joints of the cylinders are mounted to ~- r ' for the relative movement of said cylinders in respect to the folding units side frames.
At least one knife box or a cutting anvil can be assigned to each of the cylinders depending on whether the use is for double parallel or tabloid folding mode.
20 In order to adjust the couy~ld~illv cylinders, adjusting layers, otherwise known as shims, are mounted below the knife boxes and cutting anvils adjusting the effective diameter and surface speed of the ~ ~ ~t " V cylinders. Thus, a perfect match ofpclru-d~iull motion to single product at each cut-off can be achieved resulting in zero gain, Plimir~ inv perforating tearing and perforating f l~ , thus 2 5 increasing product quality ~ub l~riPf npc~rirtif~n of thP nr~Win~Jc These and other features of the present invention will bccome apparent to those skilled in the art upon reading the following detailed description of the invention 3û with reference to the d~Ulllyd..~i.lv drawings in which:
. 2181752 Fig. I shows an overall folder diagram from a former to a product transfer cylinder, Fig. 2 shows a cross section through a perforating unit with a perforating unit drive, Fig. 3 shows the center adjusting device in greater detail, Fig. 4 shows an ~ oll; . . . ~ of the invention with a triple cross perforation for use with double-parallel-products and Fig. 5 shows perforating cylinders for cross perforation use with tabloid or quarter fold products.
5 nPt~ilP~l nP~rrirti~n Fig. 1 shows an overall folder diagram from a fommer to a product transfer cylinder.
A folding unit l includes a former 2 for generating a first l~ fold in a web moving im direction of the vertically extending dashed-lined center line of the 2 o former 2. Below the former 2 a pair of lower former rolls 3 is arranged. TheIrnEinl~in~lly folded web of material is being squeezed by a pair of upper nip rolls 4 before a cross perforation is applied m a cross perforator 5 shown in greater detail in Figs. 2-5. Below the cross perforator 5 a pair of lower nip rolls 6 is arranged.
Cutting cylinders 7 on each revolution severe a single product from the web of 25 material, the single products being seized by first and second accelerator tapes 8, 9, . The accelerator tapes 8, 9 deliver the cut single products to a product transfer cylinder 10, ~ o~ with further folding cylinders of the folding unit 1.
Fig. 2 shows a cross section through a perforating unit with a l,UllCD~lOlldillg cross 3 o perforator drive on the gear side frame.
~` 2181752 A spindle 14 extends across the width of the folding unit 1 being supported on both ends by a gear side frame 12 and a work side frame 11. The spindle 14 is driven by an adjusting drive 13 mounted on the work side frame 11. r.~ , the spindle 14 includes two gearings 16 to cach of which a threaded shaft lS is assigned. rach 5 sbaft lS is connected to a bracket 17, the brackets 17 being mounted on eccentric actuators 18. By means of the eccentric actuators 18, eccentric housings 20 are moved l~ J~lly about centerlines of the perforating cylinders, i.e. a knife cylinder 22 and an anvil cylinder 23. By means of bearings 21, stub shafts of the cylinders are supported in the eccentric housings 20 on a work side and a gear side, 10 I~y~
As shown more clearly m Fig. 3, eccentric actuators 18, 18.1 mounted on gear side and work side frames include toothed segments 19, 19.1, I~ Li~ . The toothed segments 19 and 19.1 mesh with each other. C l~ 1Iy~ upon rotational 5 movement of eccentric actuator 18, caused by rotatmg of threaded shaft lS in bracket 17, due to meshing r~ - . the eccentric actuator 18.1, will move about the same amount in a clockwise or CU~ kWi~ direction. Since the eccentric housings 20 are mounted on the eccentric actuators 18, 18.1, the rotational movement vill cause a center to center movement of knife cylinder 22 and anvil 20 cylinder 23 ~ v..~l~ about the same amount. Since the eccentric actuators 18 and 18.1 on the work side and the gear side are rotated ~,....,' - . v~ly, a horizontal shifting of said perforating cylinders æ, 23 can be achieved. Thus, the nip between said cylinders 22, 23 is broadened by moving not only one cylinder relative to the other, but movmg both cylinders ~ IY about an identical amount, thus 25 Il-A,.l~ a center position of the web of material to be cross perforated within the cross perforator unit 5.
As shown in Fig. 2, the gear side frame 12 includes the drive of the cross perforator cylinders 22, 23. Since the housings 20 of the cylinders 22, 23 can be eccentrically 3 0 moved, the C( ~ drive shafts 24, 25 are arranged such to c~ for the eccentric moving of said cylinders. The drive is transmitted to said drivirlg s . . . . ... . . . . . _ . _ _ _ . _ _ _ _ _ ~ ` ` 2181752 shafts 24, 25 by means of gears 26, 27 meshing with each other. The gear 27 is driven by a drive gear 28 mounted on a drive shaft 29.
rrhe knife cylinder 22 includes at least one knife box 30 mounted on its 5 uil~ull~.r~ , shown in greater detail in Figs. 3 and 4. The Cu~ ul~vill~ anvil cylinder 23, ,~ /, has a number of cutting rubbers 31 on its ~ rt~ e Cull~ u~ , to the number of hnife boxes 3û assigned to the knife cylinder's 22 ~iUI ~11~.
10 Fig. 3 shows a center adjustment device in greater detail.
The adjustment members of said cross perforator 5 are shown in larger scale. Theknife cylinder æ and the anvil cylmder 23 each are supported by housings 20 being mounted in the eccentric actuators 18 and 18.1. As shown in Fig. 3, each of the eccentric actuators 18 and 18.1 comprises a toothed segment 19, 19.1 I-~y~ .,ly.Both toothed segments 19 and 19.1 mesh to each other. Spindle 14 drawn in cross section will drive ~hreaded shafts 15 via the illt.llll ' gearing 16, thus moving brackets 17 mounted on said eccentric actuator 18 in clochwiæ or uuu~t~ lo~h~
direction. Since both actuators 18, 18.1 mesh with each other, the rotational 20 movement of the adjustor 18 assigned to the knife cylinder 22 results in a Cull~;.L/vll~iug rotational movement of the actuator 18.1 assigned to the anvil cylinder 23, thus causing a center to center adjustment of the cylinders. A pin is provided in recess of actuator 18 to lirnit rotational movement of said eccentric actuators 18 and 18.1.
Fig. 4 shows a cross perforating ~ ,. c,. ." ,1 providing several cross ~.r upon one revolution.
In this ~-~.,ri~ i.... two knife boxes 30 are assigned to the hnife cylinder 22,3 o whereas a further hnife box 30 is mounted on the anvil cylinder 23 . This allows for cross perforations to be performed in the same direction as the cross folds during ... .. . . . . . . ~
2 1 8 i 752 further processing of the single products. Cu1.2 , 'y, by means of the knife boxes 30 assigned to the knife cylinders 22, a cross ~lru.dliol~ cl~"~I.."..li"~ to the frst parallel fold and a cross perforation coll~ ul~ to a jaw fold can be performed, whereas the knife box 3û assigned to the anvil cylinder 23 performs a5 cross perforation ,UII~ ,, to the second parallel fold.
As can be derived from Fig. 4, adjusting layers or shims 32 are assigned to knife boxes 30 as well as to cutting rubbers 31, placed in recesses on said cylmders 22, 23, c~ . Since the layers 32 are of a rigid material, an effective diameter 1û 39 of said cylinders 22, 23 and their surface speed can be changed, thus allowing a perfect match, a zero gain of the ,UI..rUldLi~ surfaces ~uu~ with each other.
As can be seen in Fig. 4 the adjusting layers 32 are placed beneath knife boxes 30 and cutting anvils 31. The knife boxes 30 are fastened by means of screws 33 and34, the perforating knives 38 being penetrated by screws 37 within said knife boxes 15 30.
Fig. S shows a ~ ~ ,,, l i~,. . ,l ;f)~ of a cross perforating unit for use in tabloid or quarter folding.
2û With this ~ ';t ~ upon one revolution of the ~.ru~dLihlg cylinders æ, 23 one cross perforation is performed. The knife box 30 as well as the cutting rubber 31 has an adjusting layer 32 underneath to influence an effective diarneter 39 of the pair of cylinders æ, 23 so that upon pf,.ru.dLill" contact an elongation of perforation does not occur. By means of the adjusting layer 32 a perforating area in the nip is 25 almost line-shaped - relative to the width of the cylinders 22, 23 - rather than a contacting area causing slits in said single products.
Tbe perforation ~ ,....".... ~ according to Fig. S also ailows for a removal of air OUt of amulti-layersingleproductandcanprovidea~,lr-l~l..l,,;,l ~lweaknessinthe 3 o r~ateridl to be folded resulting in an increased folding accuracy.
` ~ 218~7~
A furtner application of the present invention in gravure machines having variable cut-offs can be perforrned by replacing the adjusting layer 32 in a recesses of said knife boxes 30 and cutting rubbers 31 by liftmg devices beneatn cutting rubber 31 and knife box 30 such as jacking screws or eccentric lifts. Those lifting devices will s facilitate a more rapid change over for a new cut-off length to be adjusted.
Fi.-l~i r,f the Tnventinn The present invention concerQs a deYice for p.,lru~ , or p.,lr~ ' ~ another 5 processing operation on a web of material entering into a folder.
T~ ,..ll nf thP Tnventinn U.S. Patent No. 2,832,411 discloses a ~ rul~ul~ blade holding means. A cylinder comprises a io.l~,jl.-.l...~l recess, witb the recess Iying at an angle with respect to the 10 axis of said cylinder. A blade member is seated in the recess and lr,n~itll iin~liy moving clamping devices in the recess abut the blade member. The clamping devices are formed so as to grip the blade LII..~ by relative movement of said devices. Thus, the aligntnent of said blade member is ~, efrecting adjustment of the same. Simplified removal and l~ of a blade is possible 15 should such be necessary.
U.S. Patent No. 4,055,101 shows a roll fed rotating web device with improved perforator. The perforator is iU~Ul~Jo ' in a standard perforating cylinder which rotates during the process of perforation. A plurality of perforating blades are20 mounted in the perforaîing cylinder and several Ul.~IU.~.U.llL~ relating to spring biased positioners of the perforating blades are disclosed. The blade seatings each comprise a support element which is d~roll~ by pressure applied to the p~.rul~lLu~ blade.
25 In tbe technical field related to cut-off-length s. ij.lctm,~ntc in folders, a significant 218t7~2 problem has been cAy~ d in that these a ~ result in a change in gain or overspeed of p~lrula~ cylinders. The change in gain is not acceptable during cross p~.ru~aLill~ since tearing and p~lrO~ Pl~ in the products, ly severed from the web of material, occur. If, for example upon one s revolution of the p.,lru,ali,-g-knife cylinder, three y~,rU-dlio.~ are performed, the exact position of each of the cross yCIru.~iùl-~ cannot be maintained due to changes in gain resulting in a poor quality of double-parallel-folded-products.
L' I.f th~ TnvPnti~n 10 An object of the present invention is to provide a y~lru,~lil,g unit for variable cut-offs without gearing or part changes in the unit.
rLLLLh~ lol~ it is an object of the present invention to eliminate gain changes due to speed changes or cut-off length u~l;..~,,,,. .,,~
Anotber object of the present invention is to improve p~ru~dlillg quality by CliL\~ illg web-tearing and y~-ru-~Lill~ elnne~ti~ nc A further object of the present invention is to mamtain the p~.ru~ , suRaces on 2 o the center line of the paper path, tbus minimizing batting of the ribbons.
According to the invention, an apparatus for processing a web of material entering into a folding unit prior to severing single products from said web of material,includes:
- a processing unit having two ~ JIJ' ~ cylinders, - said cylinders being supported in respective housmgs in a frame of said folding unit and - a device for changing the effective diameter and changing the center to _ _ _ _ _, . , .. . . ,,, ,, .,, , , , , , , . , _ . , , _ , center distance between said ~u~uy~.d~ v cylinders ~ . f.~ -~y upon variations in speed or cut-off.
By means of a c~ according to the present invention, the ~~JlJ .
5 cylinders mamtain a zero gain which produces an accurate perfûration and eliminates y~ r. .., ~; - Pl- ~r~vf I ;~ during contact of perforating members on said .fJuy. ~ V cylinders. Since both ~ouy. .~li.¢ cylinders are mounted movably, theweb of material passing will always be m the center of the nip between both .ouy ~ V cylinders, thus enhancing cross perforating accuracy.
lû
The housings supportmg the respective ends of said o~,y~ cylinders are mounted in actuators, which move e~rPntnr~lly. Since the actuators engage each other upon a rotational movement - in clockwise as well as in ~U~ t~ O~iD~
direction - the movement of one actuator C~ f ol~cly results in a Cu~ yùllvillg 15 movement of the remaining actuator. Due to the eccentric movement of the ~~ v cylinders, driving joints of the cylinders are mounted to ~- r ' for the relative movement of said cylinders in respect to the folding units side frames.
At least one knife box or a cutting anvil can be assigned to each of the cylinders depending on whether the use is for double parallel or tabloid folding mode.
20 In order to adjust the couy~ld~illv cylinders, adjusting layers, otherwise known as shims, are mounted below the knife boxes and cutting anvils adjusting the effective diameter and surface speed of the ~ ~ ~t " V cylinders. Thus, a perfect match ofpclru-d~iull motion to single product at each cut-off can be achieved resulting in zero gain, Plimir~ inv perforating tearing and perforating f l~ , thus 2 5 increasing product quality ~ub l~riPf npc~rirtif~n of thP nr~Win~Jc These and other features of the present invention will bccome apparent to those skilled in the art upon reading the following detailed description of the invention 3û with reference to the d~Ulllyd..~i.lv drawings in which:
. 2181752 Fig. I shows an overall folder diagram from a former to a product transfer cylinder, Fig. 2 shows a cross section through a perforating unit with a perforating unit drive, Fig. 3 shows the center adjusting device in greater detail, Fig. 4 shows an ~ oll; . . . ~ of the invention with a triple cross perforation for use with double-parallel-products and Fig. 5 shows perforating cylinders for cross perforation use with tabloid or quarter fold products.
5 nPt~ilP~l nP~rrirti~n Fig. 1 shows an overall folder diagram from a fommer to a product transfer cylinder.
A folding unit l includes a former 2 for generating a first l~ fold in a web moving im direction of the vertically extending dashed-lined center line of the 2 o former 2. Below the former 2 a pair of lower former rolls 3 is arranged. TheIrnEinl~in~lly folded web of material is being squeezed by a pair of upper nip rolls 4 before a cross perforation is applied m a cross perforator 5 shown in greater detail in Figs. 2-5. Below the cross perforator 5 a pair of lower nip rolls 6 is arranged.
Cutting cylinders 7 on each revolution severe a single product from the web of 25 material, the single products being seized by first and second accelerator tapes 8, 9, . The accelerator tapes 8, 9 deliver the cut single products to a product transfer cylinder 10, ~ o~ with further folding cylinders of the folding unit 1.
Fig. 2 shows a cross section through a perforating unit with a l,UllCD~lOlldillg cross 3 o perforator drive on the gear side frame.
~` 2181752 A spindle 14 extends across the width of the folding unit 1 being supported on both ends by a gear side frame 12 and a work side frame 11. The spindle 14 is driven by an adjusting drive 13 mounted on the work side frame 11. r.~ , the spindle 14 includes two gearings 16 to cach of which a threaded shaft lS is assigned. rach 5 sbaft lS is connected to a bracket 17, the brackets 17 being mounted on eccentric actuators 18. By means of the eccentric actuators 18, eccentric housings 20 are moved l~ J~lly about centerlines of the perforating cylinders, i.e. a knife cylinder 22 and an anvil cylinder 23. By means of bearings 21, stub shafts of the cylinders are supported in the eccentric housings 20 on a work side and a gear side, 10 I~y~
As shown more clearly m Fig. 3, eccentric actuators 18, 18.1 mounted on gear side and work side frames include toothed segments 19, 19.1, I~ Li~ . The toothed segments 19 and 19.1 mesh with each other. C l~ 1Iy~ upon rotational 5 movement of eccentric actuator 18, caused by rotatmg of threaded shaft lS in bracket 17, due to meshing r~ - . the eccentric actuator 18.1, will move about the same amount in a clockwise or CU~ kWi~ direction. Since the eccentric housings 20 are mounted on the eccentric actuators 18, 18.1, the rotational movement vill cause a center to center movement of knife cylinder 22 and anvil 20 cylinder 23 ~ v..~l~ about the same amount. Since the eccentric actuators 18 and 18.1 on the work side and the gear side are rotated ~,....,' - . v~ly, a horizontal shifting of said perforating cylinders æ, 23 can be achieved. Thus, the nip between said cylinders 22, 23 is broadened by moving not only one cylinder relative to the other, but movmg both cylinders ~ IY about an identical amount, thus 25 Il-A,.l~ a center position of the web of material to be cross perforated within the cross perforator unit 5.
As shown in Fig. 2, the gear side frame 12 includes the drive of the cross perforator cylinders 22, 23. Since the housings 20 of the cylinders 22, 23 can be eccentrically 3 0 moved, the C( ~ drive shafts 24, 25 are arranged such to c~ for the eccentric moving of said cylinders. The drive is transmitted to said drivirlg s . . . . ... . . . . . _ . _ _ _ . _ _ _ _ _ ~ ` ` 2181752 shafts 24, 25 by means of gears 26, 27 meshing with each other. The gear 27 is driven by a drive gear 28 mounted on a drive shaft 29.
rrhe knife cylinder 22 includes at least one knife box 30 mounted on its 5 uil~ull~.r~ , shown in greater detail in Figs. 3 and 4. The Cu~ ul~vill~ anvil cylinder 23, ,~ /, has a number of cutting rubbers 31 on its ~ rt~ e Cull~ u~ , to the number of hnife boxes 3û assigned to the knife cylinder's 22 ~iUI ~11~.
10 Fig. 3 shows a center adjustment device in greater detail.
The adjustment members of said cross perforator 5 are shown in larger scale. Theknife cylinder æ and the anvil cylmder 23 each are supported by housings 20 being mounted in the eccentric actuators 18 and 18.1. As shown in Fig. 3, each of the eccentric actuators 18 and 18.1 comprises a toothed segment 19, 19.1 I-~y~ .,ly.Both toothed segments 19 and 19.1 mesh to each other. Spindle 14 drawn in cross section will drive ~hreaded shafts 15 via the illt.llll ' gearing 16, thus moving brackets 17 mounted on said eccentric actuator 18 in clochwiæ or uuu~t~ lo~h~
direction. Since both actuators 18, 18.1 mesh with each other, the rotational 20 movement of the adjustor 18 assigned to the knife cylinder 22 results in a Cull~;.L/vll~iug rotational movement of the actuator 18.1 assigned to the anvil cylinder 23, thus causing a center to center adjustment of the cylinders. A pin is provided in recess of actuator 18 to lirnit rotational movement of said eccentric actuators 18 and 18.1.
Fig. 4 shows a cross perforating ~ ,. c,. ." ,1 providing several cross ~.r upon one revolution.
In this ~-~.,ri~ i.... two knife boxes 30 are assigned to the hnife cylinder 22,3 o whereas a further hnife box 30 is mounted on the anvil cylinder 23 . This allows for cross perforations to be performed in the same direction as the cross folds during ... .. . . . . . . ~
2 1 8 i 752 further processing of the single products. Cu1.2 , 'y, by means of the knife boxes 30 assigned to the knife cylinders 22, a cross ~lru.dliol~ cl~"~I.."..li"~ to the frst parallel fold and a cross perforation coll~ ul~ to a jaw fold can be performed, whereas the knife box 3û assigned to the anvil cylinder 23 performs a5 cross perforation ,UII~ ,, to the second parallel fold.
As can be derived from Fig. 4, adjusting layers or shims 32 are assigned to knife boxes 30 as well as to cutting rubbers 31, placed in recesses on said cylmders 22, 23, c~ . Since the layers 32 are of a rigid material, an effective diameter 1û 39 of said cylinders 22, 23 and their surface speed can be changed, thus allowing a perfect match, a zero gain of the ,UI..rUldLi~ surfaces ~uu~ with each other.
As can be seen in Fig. 4 the adjusting layers 32 are placed beneath knife boxes 30 and cutting anvils 31. The knife boxes 30 are fastened by means of screws 33 and34, the perforating knives 38 being penetrated by screws 37 within said knife boxes 15 30.
Fig. S shows a ~ ~ ,,, l i~,. . ,l ;f)~ of a cross perforating unit for use in tabloid or quarter folding.
2û With this ~ ';t ~ upon one revolution of the ~.ru~dLihlg cylinders æ, 23 one cross perforation is performed. The knife box 30 as well as the cutting rubber 31 has an adjusting layer 32 underneath to influence an effective diarneter 39 of the pair of cylinders æ, 23 so that upon pf,.ru.dLill" contact an elongation of perforation does not occur. By means of the adjusting layer 32 a perforating area in the nip is 25 almost line-shaped - relative to the width of the cylinders 22, 23 - rather than a contacting area causing slits in said single products.
Tbe perforation ~ ,....".... ~ according to Fig. S also ailows for a removal of air OUt of amulti-layersingleproductandcanprovidea~,lr-l~l..l,,;,l ~lweaknessinthe 3 o r~ateridl to be folded resulting in an increased folding accuracy.
` ~ 218~7~
A furtner application of the present invention in gravure machines having variable cut-offs can be perforrned by replacing the adjusting layer 32 in a recesses of said knife boxes 30 and cutting rubbers 31 by liftmg devices beneatn cutting rubber 31 and knife box 30 such as jacking screws or eccentric lifts. Those lifting devices will s facilitate a more rapid change over for a new cut-off length to be adjusted.
Claims (14)
1. An apparatus for processing a web of material comprising a first cylinder and a second cylinder with a space between said cylinders for passing a web material therethrough, each cylinder having a central axis and being rotatably supported by a housing, each housing being rotatable about a central axis offset relative to the axis of the respective cylinder; and an adjustment device coupled to said housings for rotation thereof, which when activated causes movement of both cylinders in a manner to increase the space between said cylinders or in a manner to decrease the space between said cylinders.
2. The apparatus as claimed in Claim 1, wherein the adjustment device comprises a geared arrangement for rotating the housings.
3. The apparatus as claimed in Claim 1, wherein said adjustment device includes two gears in mesh, with one gear rotatable about the central axis of one housing and the other gear rotatable about the central axis of the other housing.
4. The apparatus as claimed in claim 2, wherein said adjustment device includes a single drive for driving said geared arrangement.
5. The apparatus as recited in claim 2, wherein said adjustment device includes meshing toothed segments attached to said housings for rotating said housings and changing the spacing of said cylinders.
6. The apparatus as claimed in claim 1, wherein said adjustment mechanism includes one drive controlling both cylinders.
7. The apparatus as claimed in claim 2, wherein said adjustment mechanism includes a linkage for directly rotating one of said housings and indirectly rotating the other housing.
8. The apparatus as claimed in claim 1 further comprising joints for driving the first and second cylinders and for compensating for a movement of said cylinders.
9. The apparatus as claimed in claim 1 wherein at least one of said first and second cylinders comprises at least one knife box.
10. The apparatus as claimed in claim 1, wherein at least one of the first and second cylinders has at least one cutting anvil on its surface.
11. The apparatus as claimed in claim 1, wherein at least one of the first and second cylinders have recesses and have adjusting layers assigned to said recesses.
12. An apparatus for processing a web of material comprising a first cylinder and a second cylinder with a space between said cylinders for passing a web of material therethrough, each cylinder being rotatably supported by a housing, each housing being rotatable for adjusting the position of the respective cylinder supported in the housing relative to the other cylinder for altering the center to center distance of said cylinders, said cylinders being supported in said housings at a position offset relative to a center of rotation of said housing, and wherein said housings are coupled such that rotational movement of one housing causes a similar movement of the other housing and a cooperative movement of said cylinders altering the separation thereof.
13. An apparatus as claimed in claim 12, wherein said housings are connected by a gear arrangement where rotation of one housing causes an opposite rotation of the other housing.
14. An apparatus as claimed in claim 13, including a single drive attached to one of said housings which controls the position of both of said housings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52148695A | 1995-08-30 | 1995-08-30 | |
| US08/521486 | 1995-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2181752A1 CA2181752A1 (en) | 1997-03-01 |
| CA2181752C true CA2181752C (en) | 1999-09-14 |
Family
ID=24076919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2181752 Expired - Fee Related CA2181752C (en) | 1995-08-30 | 1996-07-22 | Cross perforator adjustment mechanism |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0760274A1 (en) |
| JP (1) | JPH09136758A (en) |
| CA (1) | CA2181752C (en) |
| DE (1) | DE19625787A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038098A (en) * | 2019-12-09 | 2020-04-21 | 高斯图文印刷系统（中国）有限公司 | Clutch control mechanism of printing roller |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1072369B1 (en) * | 1999-07-26 | 2003-09-17 | Heidelberger Druckmaschinen Aktiengesellschaft | Phase shift mechanism for the perforating device of a variable product folding machine |
| DE19935022A1 (en) * | 1999-07-26 | 2001-02-01 | Heidelberger Druckmasch Ag | Phase setting device for perforating device, with perforating tools and battens on one or more perforating bridges and perforating cylinders adjustable relative to battens |
| DE10309174A1 (en) * | 2003-02-28 | 2004-09-16 | Windmöller & Hölscher Kg | Transverse perforating apparatus for use in producing bags, has linear servo unit comprised of yoke sleeve, spindle, universal joint, drive shaft, bearing block, bearing, clutch, engine shaft and electric machine to rotate lever press |
| JP4909778B2 (en) * | 2007-03-20 | 2012-04-04 | 王子ネピア株式会社 | Elastic material cutting roll and method for producing disposable diaper |
| JP5099883B2 (en) * | 2007-03-20 | 2012-12-19 | 王子ネピア株式会社 | Elastic material cutting roll and method for producing disposable diaper |
| DE102007019864B4 (en) * | 2007-04-23 | 2011-06-22 | KOENIG & BAUER Aktiengesellschaft, 97080 | Longitudinal perforating devices for a web-fed rotary printing machine with at least one perforating blade |
| US8403945B2 (en) | 2010-02-25 | 2013-03-26 | Covidien Lp | Articulating endoscopic surgical clip applier |
| JP5416671B2 (en) * | 2010-09-06 | 2014-02-12 | 日本タングステン株式会社 | Rotary cutter |
| JP5416670B2 (en) * | 2010-09-06 | 2014-02-12 | 日本タングステン株式会社 | Rotary cutter |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB733277A (en) * | 1953-07-02 | 1955-07-06 | Andrew Johnson & Son Ltd | Improvements relating to roller adjusting means |
| US3067674A (en) * | 1961-03-14 | 1962-12-11 | Miehle Goss Dexter Inc | Throw-off mechanism for offset presses |
| GB1096414A (en) * | 1964-11-28 | 1967-12-29 | Deritend Eng Co | Improvements relating to apparatus for treating blanks or webs of material for example, for cutting, creasing, scoring, printing |
| US3954034A (en) * | 1974-04-25 | 1976-05-04 | Standex International Corporation | Rotary cutting mechanism |
| DE3412812C1 (en) * | 1984-04-05 | 1985-06-27 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Switching device for the blanket cylinders of a printing unit for a web-fed offset printing machine |
| DD260893A1 (en) * | 1987-06-22 | 1988-10-12 | Polygraph Leipzig | ADJUSTMENT AND STOPPING DEVICE FOR THE RUBBER CYLINDER OF A FOUR CYLINDER PRESSURE PUSH FOR A ROLL ROTATION OFFSET PRINTING MACHINE |
| DE3721516C1 (en) * | 1987-06-30 | 1989-01-05 | Roland Man Druckmasch | Device for dividing a stream from printed copies |
| US5048387A (en) * | 1989-07-14 | 1991-09-17 | Komori Corporation | Horizontal perforation forming apparatus for rotary press |
| US5058496A (en) * | 1990-09-17 | 1991-10-22 | Integrated Design Corp. | Roll apparatus with cooling system for maintaining constant gap size and method |
| DE4103744C1 (en) * | 1991-02-07 | 1992-09-17 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
| DE4215196C2 (en) * | 1992-05-08 | 1995-06-29 | Wilhelm Aichele | Device for transverse squeezing of leading material webs |
| DE4216627C2 (en) * | 1992-05-20 | 2001-06-07 | Heidelberger Druckmasch Ag | Sheet feeder on printing machines |
| GB9307475D0 (en) * | 1993-04-08 | 1993-06-02 | Langston The Corp | Automatic vartiable speed anvil system for rotary die-cut apparatus |
-
1996
- 1996-06-27 DE DE1996125787 patent/DE19625787A1/en not_active Withdrawn
- 1996-06-27 EP EP96110375A patent/EP0760274A1/en not_active Withdrawn
- 1996-07-22 CA CA 2181752 patent/CA2181752C/en not_active Expired - Fee Related
- 1996-08-23 JP JP8222400A patent/JPH09136758A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111038098A (en) * | 2019-12-09 | 2020-04-21 | 高斯图文印刷系统（中国）有限公司 | Clutch control mechanism of printing roller |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0760274A1 (en) | 1997-03-05 |
| CA2181752A1 (en) | 1997-03-01 |
| JPH09136758A (en) | 1997-05-27 |
| DE19625787A1 (en) | 1997-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |