U.S. patent number 3,871,639 [Application Number 05/301,100] was granted by the patent office on 1975-03-18 for method of automatically producing a continuously processable multicopy writing surface assembly, and apparatus for performance thereof.
This patent grant is currently assigned to Jos. Hunkeler AG Fabrik Fur Graphische Maschinen. Invention is credited to Willi Felix.
United States Patent |
3,871,639 |
Felix |
March 18, 1975 |
METHOD OF AUTOMATICALLY PRODUCING A CONTINUOUSLY PROCESSABLE
MULTICOPY WRITING SURFACE ASSEMBLY, AND APPARATUS FOR PERFORMANCE
THEREOF
Abstract
Method and apparatus for producing a multicopy writing surface
assembly comprising a continuous web and attachments affixed
thereto wherein the continuous web moves in one direction and the
attachments move toward it from the opposite direction against a
stop at which point they are interconnected.
Inventors: |
Felix; Willi (Strengelbach,
CH) |
Assignee: |
Jos. Hunkeler AG Fabrik Fur
Graphische Maschinen (Wikon, CH)
|
Family
ID: |
4412977 |
Appl.
No.: |
05/301,100 |
Filed: |
October 26, 1972 |
Foreign Application Priority Data
|
|
|
|
|
Nov 1, 1971 [CH] |
|
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15912/71 |
|
Current U.S.
Class: |
270/52.13;
462/2 |
Current CPC
Class: |
B65C
9/12 (20130101); B65C 1/023 (20130101); B65H
39/14 (20130101); B31D 1/0081 (20130101) |
Current International
Class: |
B31D
1/00 (20060101); B65C 1/00 (20060101); B65C
9/12 (20060101); B65C 1/02 (20060101); B65C
9/08 (20060101); B65h 039/00 () |
Field of
Search: |
;270/52-59
;156/552,548,547 ;93/36.6 ;281/2 ;282/11.5A,3,7 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Michell; Robert W.
Assistant Examiner: Millin; V.
Attorney, Agent or Firm: Browdy and Neimark
Claims
What is claimed is:
1. A method of automatically producing a continuously processable
assembly including a continuous web and attachments, having a
leading edge and a trailing edge, wherein the leading edge of the
attachment is connected to the web, comprising:
moving the continuous web in one direction;
moving the leading edge of one of said attachments toward the
continuous web from the opposite direction;
accurately stopping the motion of the attachment upon contact with
a predetermined portion of the continuous web; and
interconnecting the leading edge of the attachment and the
continuous web in an orderly manner.
2. Method according to claim 1, wherein the continuous web moves
intermittently and the attachment is affixed thereto during the
intermission.
3. Method according to claim 2, wherein the attachments are taken
from a stack and, during the movement of the continuous web, are
positioned above the latter.
4. Method according to claim 3, wherein the gluing and the
interconnecting of attachment and web are performed immediately
after the web stops.
5. Method according to claim 4, further comprising positioning the
attachment against a stop, holding it fast, withdrawing the
conveying means of the attachment from the latter, and then, for
affixing, pressing the attachment against the continuous web at
least at the glued points.
6. Method according to claim 3, wherein the attachment to be
withdrawn from the stack is exposed to compressed air which is
blown from the front between the attachment and the remainder of
the stack.
7. Method according to claim 1, further comprising applying glue to
the web, placing the attachment thereonto and affixing it thereto,
and then delivering the finished multicopy writing surface assembly
in an ordered folded manner.
8. Method according to claim 7, wherein gluing is performed
spotwise, and that gluing time is variable.
9. Method according to claim 7, wherein the attachments having the
form of multiple sets are interconnected by punching, during the
gluing or affixing to the continuous web.
10. Method according to claim 7, wherein the attachment is guided
and held fast from the beginning of its withdrawal from the stack
to the gluing operation, inclusive.
11. Method according to claim 7 wherein the attachment is a set of
multiple sheets and the continuous web is a pilot web wherein, for
the purpose of ordered delivery, the pilot web is folded about a
middle fold in such a manner that the leading edge portions of the
sets lie between pilot web portions while the trailing edge
portions of the sets lie in direct contact one above the other.
12. Method according to claim 1, wherein an adhesive agent setting
under pressure is used.
13. Method according to claim 12, wherein the means designed to
hold the attachments in position is used as a pressing means to
cause the adhesive agent to set.
14. Method according to claim 1, wherein the attachments having the
form of sets of multiple sheets are affixed to the continuous web
in a partially overlapping manner.
15. Method according to claim 14 wherein the attachment is a set of
multiple sheets and the continuous web is a pilot web wherein, for
the purpose of ordered delivery, the pilot web is folded about a
middle fold in such a manner that the leading edge portions of the
sets lie between pilot web portions, while the trailing edge
portions of the sets lie in direct contact one above the other.
16. Method according to claim 1, comprising loosening the
attachment in the stack, withdrawing it therefrom, conveying it
towards the continuous web in a direction opposed to the advance of
the said web and bringing it in slowed movements up against
stationary stop surfaces, and, once the attachment rests against
the stops, holding it fast, releasing it from the conveying means,
pressing it against the pilot web and connecting it thereto by
gluing, and then folding the pilot web with the attachments.
17. An apparatus for automatically producing a continuously
processable assembly including a continuous web and attachments,
having a leading edge and a trailing edge, wherein the leading edge
of the attachment is connected to the web, comprising:
web feed means for moving the continuous web in one direction;
attachment feed means for moving the leading edge of one of said
attachments toward the continuous web from the opposite
direction;
positioning means for accurately stopping the motion of the
attachment upon contact with a predetermined portion of the
continuous web; and
connecting means for interconnecting the leading edge of the
attachment and the continuous web in an orderly manner.
18. Apparatus in accordance with claim 17, wherein said positioning
means includes stops designed to position the attachment with
respect to the continuous web.
19. Apparatus according to claim 18, wherein the stops are
stationary and are provided with a guide slot and a stop
surface.
20. Apparatus according to claim 18, wherein said attachment feed
means further includes grippers designed to grip and convey the
attachments.
21. Apparatus according to claim 20, wherein when the attachment
comes up against the stops, the grippers are positioned between the
said stops.
22. Apparatus according to claim 20 which is provided with several
grippers for the purpose of affixing several attachments side by
side on one web.
23. Apparatus according to claim 20, further including a
double-acting electric magnet and a spring designed to vary the
clamping power of the gripper.
24. Apparatus according to claim 17, further comprising a gluing
station with nozzles which can be moved upward for cleaning.
25. Apparatus according to claim 24 further, comprising a lay-on
and press-on station succeeding the gluing station.
26. Apparatus according to claim 25, wherein the lay-on and
press-on station is provided with clamping fingers capable of being
lifted and lowered.
27. Apparatus according to claim 26, wherein at least one of the
press fingers is provided with a plate spring clamping means.
28. Apparatus according to claim 17, wherein said attachment feed
means includes a pivoted arm which is capable of being lifted and
lowered and which is provided with at least two grippers which are
connected to a magnet by a ball joint and whose lower halves are
pivotally connected to the pivoted arm, while the upper halves are
rigidly connected to the said pivoted arm.
29. Apparatus according to claim 28, wherein said pivoted arm with
the grippers is connected to a rig which is arranged above the
continuous web and is capable of being lifted and lowered in
controlled manner.
30. Apparatus according to claim 17, further comprising a stacking
device comprising at least one roller which has a lead with respect
to a lower roller and having a pivoted stirrupshaped means which is
designed to guide the pilot web towards the stack as well as to
spread out the overlapping multiple sets.
31. Apparatus according to claim 17, capable of being set up in
line with other systems of a design identical with its own
design.
32. Apparatus according to claim 17, further comprising a holding
means which is designed as a blowing nozzle and which is designed
to hold the stack overlying the lowest attachment.
33. Apparatus according to claim 32, further comprising a pneumatic
station which blows into the bottom of the stack and which presents
at least one suction head designed to suck the head portion of the
lowest attachment and which is provided with at least one air
nozzle which blows in opposition to the withdrawal direction and
blows air between the lowest attachment and the remainder of the
stack and concurrently serves as a support for such remainder.
34. Apparatus according to claim 32, wherein said nozzle is
pivotally arranged for the purpose of supporting the remainder of
the stack.
Description
The present invention concerns a method of automatically producing
a continuously processable multicopy writing surface assembly
comprising a continuous web and attachments, and further concerns
apparatus for the performance of such method.
The term "continuously processable multicopy and writing surface
assembly" as used herein denotes continuous products provided with
single forms, labels and the like, such as continuous forms, as
well as a continuous single web which has arranged on it multicopy
sets in particular multiple forms.
Industrial practice today knows of no suitable machines or methods
for the production of such continuously processable multicopy
assemblies. The production of such assemblies has hitherto been
effected by manual methods, involving inadequate output and
insufficient precision.
The object of the present invention is to eliminate the said
drawbacks by providing a method characterized in that the
continuous web moves in one direction and the attachments move
towards it from the opposite direction, and that the two are
interconnected and then laid down in an ordered manner.
The invention is now to be described by way of example with
reference to the accompanying drawings, in which
FIG. 1 shows a side view of a machine for the affixing of single
forms, address labels or the like onto continuous forms, or of
multiple sets onto continuous single webs;
FIGS. 2-6 show diagrams of part of the machine according to FIG. 1
in various positions corresponding to the different steps in the
process of affixing sets to a pilot web;
FIG. 7 shows a diagrammatic top view of part of the machine
according to FIG. 1;
FIG. 8 shows a section along line a--A in FIG. 7;
FIG. 9 shows a section along line B--B in FIG. 7.
The machine shown in FIGS. 1-7 comprises a support 1 for a pilot
web 4 which is taken from a pilot web stack 3 and which presents
edge perforations serving to advance the pilot web 4. Arranged
above the pilot web stack 3 is an adjustable guide bar 5 which,
viewed in the moving direction of the pilot web, is succeeded by a
gluing station 7. Succeeding this is a lay-on and press-on station
9. The machine further comprises a device designed to receive a
stack 11 of attachments 12, which are formed in sets intended to be
affixed to the pilot web 4. A feeder 13 is designed to withdraw the
attachments 12 from the stack 11 and feed them to the lay-on and
press-on station 9. The machine further comprises a tiltable
pneumatic station 15 with suction and blast air for separation of
the individual attachments 12 from the stack 11. The lay-on and
press-on station 9 is succeeded by an intermittently operating
feeder, which in its turn is succeeded by a lay-down device 17; the
web, with the attachments affixed to it, passes through the latter
device and subsequently reaches a height-adjustable lay-down table
19, which can be automatically lowered. The machine is controlled
by switches arranged on a switchbox 21. Arranged below the
aforesaid stations and concealed in FIG. 1 by casing plates is a
gearbox with gearing and drive for the intermittent advance of the
pilot web 4.
The machine shown in FIG. 1 operates with two webs running side by
side. Fitted to the machine frame are slidable bearings 26 which
hold a pivot rod 27. Clamped to the pivot rod 27 are nozzle
supports 29 with removable glue nozzles 30. A central
height-adjustable glue vessel 32 supplies glue through a flexible
tube 33 to the nozzles 30. By adjusting the height of the glue
vessel 32 it is possible to vary the glue flow and thus the glue
coating in accordance with the type of material, for instance. A
faucet 34 fitted to the supply tube 33 permits the glue supply to
be shut down for prolonged pauses or for changing the nozzles 30.
The supply tube 33 leads into a distributor tube 36, whence the
various connecting tubes 37 lead to the nozzles 30.
Instead of spot gluing by individual nozzles, it is possible to
adopt wipe gluing, sweeping the whole form width or part thereof.
In such case, it is necessary to ensure before each advance of the
pilot web that all parts such as stops and the like are retracted
in order to prevent smudging of the gluing place.
The lay-on and press-on station 9 comprises bearings 39 with a
pivot rod 40 to which press fingers 41 are adjustably fixed. One
or, where applicable, several of the press fingers 41 are provided
with a plate spring 42. Another pivot rod 43 supports two stops 44
for each web, with guide slots 45 and stop surfaces 46, for the
attachment 12 to be laid in position. The term "attachment" as used
herein denotes a single form, label or the like which is attached
to a set of continuous forms, for instance, or a set of forms which
is attached to a carrier or a pilot web. Arranged above the
aforesaid components is a rig 48 with a fixed support 49 to which a
beam 50 is pivotally connected by a pin 51. A program-controlled
tappet 52 capable of moving up and down is connected to the beam
50. Arranged on each side of the beam 50 and fastened thereto by a
rod 55 is a pivoted arm 54 which is slidable across the web
direction and whose position is therefore adjustable to the width
of the attachment. The pivoted arm 54 is provided with a
double-acting electric magnet 56 which serves to operate a gripper
57 with a fixed upper clamp 58 and a lower pivotable clamp 60. The
clamp 60 is fastened to a pivot rod 61. It also presents a strap
62. A pin 63 is slipped through two straps 62 and supports the two
grippers 57 belonging to a pivoted arm 54 or, more particularly,
the lower clamps 60 of the said grippers. The pin 63 is provided
with a rod 64 which is connected by a ball joint 65. The upper
portion of the rod 64 extends through the electric magnet 56 and is
provided at its free end with a spring 66 and a spring disk 67
which is adjustable for the purpose of pre-tensioning the spring
66.
To prevent the attachments, such as multiple sets, labels and the
like, from getting nicked or torn when hitting the surfaces 46, the
grippers 57 are arranged between the two stops 44. The grippers 57
are not only feeding devices, but also serve to position the
attachments to be affixed.
Arranged on the attachment stack table 10 is the pneumatic station
15 which, as previously mentioned, blows air from below through the
stack table 10 in the direction of the arrows 69, in order to
reduce the pressure of the stack 11 lying on the table 10 and
thereby reduce the friction opposing the withdrawal of the lowest
attachment 12.
The suction heads 70 are designed to pull the head of the
attachment 12, such as a multiple set, away from the stack 11 and
downwards. This action permits an air nozzle 71 to blow pressurized
air between the lowest attachment 12 and the overlying stack 11.
The air nozzle 71 may concurrently have the form of a retainer to
hold up the stack overlying the attachment 12 to be withdrawn. FIG.
3 shows a set 73 which is withdrawn from the stack 11 in opposition
to the moving direction 74 of the pilot web 4 and is laid onto the
preceding set 75, involving an overlap. This overlap can be
obtained if, as explained, the set 73 moves in opposition to the
pilot web 4. Before the processed webs reach the stacking device,
they pass over a driven roller 78 with two slightly leading upper
pressure rollers 79.
The stacking device further comprises a pivoted stirrup 81. The
pilot web 4 is provided at points corresponding to half the
attachment length with a fold 82 which permits the pilot web 4 with
the attachments 12 to be stacked in the manner shown in FIG. 1, so
that the pilot web 4 folds up in such a manner that the head 83 of
the attachment is enveloped by the pilot web 4, while the other
half of the attachment lies free. As a result, all attachments are
restacked lying in the same position, i.e. coincident.
When continuous form sets with attachments are restacked, the
stirrup 81 and the table 19 are not required. Such continuous form
sets are passed over an edge, analogous to the edge of the lay-down
table 19, into a receptacle (not shown).
It is further possible to provide the delivery end of the machine
described with a cutting device to trim the perforated edges from
the webs, while the web run-in end of the machine may be equipped
with a transverse perforating device and/or a punching device. It
may also be convenient to arrange a numbering device at the
delivery end of the machine for the purpose of consecutively
numbering the forms, labels, etc., after the gluing operation.
The above described machine operates as follows:
The pilot web 4 (or, instead, a continuous form to which single
forms, labels and the like are to be attached) is drawn from the
pilot web stack 3 and moves from right to left according to the
FIGS. The intermittent motion is produced by a spiked belt engaging
the edge perforations of the pilot web 4. The advance stroke of the
pilot web 4 is set according to the length of the attachment or,
more particularly, to the length of the overlap 76 by means of
change gears. This construction thus permits the operator to set
any advance stroke of the pilot web 4 required.
After the advance stroke, the gluing station 7 goes into action.
The pivot rod 27 with the nozzles 30, until then lifted, turns
anticlockwise to lower the nozzles 30 on to the pilot web 4. This
results in spot gluing of the pilot web according to the
arrangement of the nozzles 30. The dwell-time of the nozzles 30 on
the pilot web 4 is adjustable, ensuring highly accurate control of
the glue quantity discharged by the nozzles. Then the pivot rod
turns clockwise to lift the nozzles from the pilot web. Further
lifting (by hand) permits the nozzles 30 to be easily cleaned.
Then the pilot web drive automatically restarts and brings the
pilot web 4 in a further stroke to a point below the lay-on and
press-on station 9. At each stroke, the gluing station 7 repeats
the gluing of the pilot web 4 or the continuous set in the above
described manner.
During the gluing phase, the pneumatic station 15, comprising the
blowing air 69, the blow nozzles 71 and the suction heads 70, has
prepared the lowest attachment 12 of the stack 11 for withdrawal.
In this, the air nozzle 71 hold up the remaining stack during
withdrawal of the lowest attachment. For this, they swing past the
head of the lowest attachment to a point below the stack. The two
grippers 57 arranged between the stops 44 as shown in FIG. 2 are in
the open position, with the lower clamp 60 moved down by the
electric magnet 56. During the last portion of the movement toward
the stack 11, the head 83 of the attachment 12 passes in between
the two clamps 58 and 60. At the end of the movement of the
grippers 57, the electric magnet 56 acts to close the grippers 57.
Then the arm 54 with the grippers 57 swings back, with the result
that the said grippers withdraw an attachment 73 (FIG. 3) between
the stack 11 and the stack table 10 and convey it towards the pilot
web 4 and the stops 44. The pivoted arm 54 moves to a lowest
position (FIG. 3) and thence moves into the home position (FIG.
4).
The connection of the rod 64 by the ball joint 65 ensures that the
two grippers 57 are operated evenly, and that the attachment 12 is
simultaneously gripped regardless of its thickness.
Before this final phase in the motion of the pivoted arm 54, the
attachment 73 passes with its head 83 into the guide slots 45 of
the stops 44. Before that, the motion of the pivoted arm 54 was
slowed so as to ensure that the leading edge of the attachment 73
comes to rest gently against the surfaces 46 of the stops 44.
Shortly before the attachment reaches the surfaces 46, the electric
magnet 56 de-energizes, and the grippers 57 are held by the action
of the spring 66 in a position whose clamping effect is reduced and
which is adjustable in respect to clamping power. Once the
attachment has reached the stops 44, the grippers are withdrawn
from the attachment, now at rest. During the withdrawal of the
grippers from the attachment, the pivot rod 40 in the bearings 39
turns anticlockwise, so that the plate spring 42 comes to rest on
the attachment 73 and holds it fast. This prevents the attachment
73 from rebounding and ensures its accurate positioning. Then,
after the withdrawal of the grippers from the attachment, the pivot
rod 40 performs a second movement, lowering the press fingers 41,
which exert pressure at selected points across the whole gluing
width of the head 83 of the attachment 73 or 12, in such a manner
that the press fingers 41 bear exactly on the previously glued
points. A suitable glue setting under pressure is used, so that the
head 83 of the attachment 73 is affixed to the corresponding points
on the pilot web 4.
After this positioning, the grippers 57 return to their gripping
position shown in FIG. 2. For this purpose, after the movement into
the position shown in FIG. 5, the beam 50 is slightly lifted
together with the pivot rod 54 and the grippers 57 by the lifting
of the tappet 52, and then the arm 54 swings clockwise into the
gripping position. During that motion, the electric magnet 56
reopens the grippers 57, and the arm 54 is lowered by the beam 50
and the tappet 52.
The next attachment 12 is then gripped and placed onto the pilot
web 4, as described. So, while the first gluing point of the pilot
web 4 reaches the lay-on and press-on station during the second
stroke described, the attachment 12 is pulled into the said station
in opposition to the moving direction of the pilot web 4, as
described, and is first held fast on the pilot web 4 by the plate
spring 42. Then, as described, the pivot rod 40 performs a second
movement, lowering the press fingers 41 to affix attachment to
pilot web.
Before the next stroke begins, involving the advance of the pilot
web 4, the pivot rod 40, in the present case controlled by cams
(not shown), turns clockwise, removing the press fingers 41 as well
as the plate spring 42 from the glued attachment 73. After the
advance or the next stroke, the pilot web 4, at standstill,
receives glue, while the particular attachment 73 is affixed to the
pilot web 4 under the pressure of the lowered press fingers 41.
During the gluing and affixing, the arm 54 with the grippers 57 has
again reached its gripping position, while before that the beam 50
was again lowered by the tappet 52 during the return stroke and
returned to the correct gripping position. The cycle now starts
afresh, in that during the advance of the pilot web 4 described the
next attachment 12 or 73 is withdrawn from the stack 11 and placed
onto the pilot web 4. The final position is reached at standstill,
and plate spring and press fingers ensure the correct affixing of
the attachment to the pilot web. When attachments are affixed to
the pilot web 4, the latter together with the affixed attachments
passes between the driven roller 78 and the upper pressure rollers
79, where, owing to the position of the pressure rollers 79 with
respect to the roller 78, the foot of the attachment 12 is given an
upward direction, while the stirrup 81 swung towards the roller 78
guides the pilot web 4 downwards. The pilot web 4 is automatically
folded about the fold 82, as shown in FIG. 1. During this folding
operation, the stirrup 81 swings out clockwise, as shown in FIG. 1,
so that it engages and spreads the attachment 12, so that the lower
halves of the attachments come to lie exactly one above the other.
In this manner, the pilot web 4 with the attachments is
restacked.
Where attachments are affixed to continuous forms, restacking is
performed in the manner described earlier.
As mentioned, it is possible to adjust the stroke or the advance of
the pilot web 4 to requirements. Instead of multiple sets, it is
possible to affix adhesive address labels, forms and the like to
continuous webs. In all cases, the machine operates in basically
the same manner, and all the need be done is setting of the stops,
the advance stroke, the gluing nozzles and the press fingers
accordingly.
For the purpose of affixing various kinds of form, several machines
may be set up pin line. It is also possible to provide each web
with several suitably controlled pivoted arms 54 with grippers 57
to permit identical or different attachments to be affixed to the
sets of a continuous form at different points, for instance.
Moreover, it is possible by suitable programming to omit one or
several attachments after, say, every hundred forms, for instance.
Again, it is possible concurrently with one of the process phases,
such as the gluing phase, to interconnect various superimposed
continuous webs, as by punching. Finally, it is possible to apply
the glue to the attachment instead of to the pilot web or the
continuous form.
It is an essential feature of the above described machine that the
attachments can be placed onto a web and affixed thereto at any
point desired, and that the attachments are positively guided and
held until their connection with the web is ensured.
* * * * *