EP0078136A1 - A label printing machine - Google Patents
A label printing machine Download PDFInfo
- Publication number
- EP0078136A1 EP0078136A1 EP82305492A EP82305492A EP0078136A1 EP 0078136 A1 EP0078136 A1 EP 0078136A1 EP 82305492 A EP82305492 A EP 82305492A EP 82305492 A EP82305492 A EP 82305492A EP 0078136 A1 EP0078136 A1 EP 0078136A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- roller
- indexing
- machine
- foil
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/16—Registering, tensioning, smoothing or guiding webs longitudinally by weighted or spring-pressed movable bars or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses or machines
- B41F13/04—Conveying or guiding webs through presses or machines intermittently
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
- B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
- B41K3/44—Means for handling copy matter
- B41K3/48—Means for handling copy matter for conveying intermittently to or from stamping station
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
- B65H20/04—Advancing webs by friction roller to effect step-by-step advancement of web
Definitions
- This invention relates to a label printing machine, particularly to a hot foil label printing machine.
- a label printing machine especially but not exclusively a hot foil label printing machine, the machine comprising a feed assembly for stepwise indexing label stock in web form through the machine, and including a web brake and a web-indexing roller and pressure roller combination, the web brake and pressure roller each being controlled by lever means operated by a separate cam, the arrangement being such that when the brake is open the indexing roller with the pressure roller in nipped relationship steps the web through the machine and when the brake is on the indexing roller contra-rotates with the pressure roller spaced therefrom.
- the indexing roller is indexed from the pressure roller cam by a length-adjustable lever means, the length adjustment determining the amount of indexing of the web.
- the hot foil label printing machine includes a foil feeder assembly comprising a foil feeder track, a flexible element housed within and movable along the track, the flexible element being securable to an end of foil adjacent the foil supply, and a winding mechanism to which the flexible element is secured and which serves to pull the flexible element and the foil along the track to a foil rewind.
- a foil feeder assembly comprising a foil feeder track, a flexible element housed within and movable along the track, the flexible element being securable to an end of foil adjacent the foil supply, and a winding mechanism to which the flexible element is secured and which serves to pull the flexible element and the foil along the track to a foil rewind.
- the label printing machine includes a web tensioning device comprising a dancer roller carried by a pivotal, length-adjustable, spring-return arm adapted to operate a cam-controlled brake, either to release or apply the latter depending on whether the web is being wound on or wound off a reel during indexing.
- a web tensioning device comprising a dancer roller carried by a pivotal, length-adjustable, spring-return arm adapted to operate a cam-controlled brake, either to release or apply the latter depending on whether the web is being wound on or wound off a reel during indexing.
- the hot foil label printing machine comprises a label stock supply 10 from which web 11 passes to a label rewind reel 12 via a dancer roller tensioning mechanism 13, a hot platen printing device 14 where the web 11 meets with the foil 15 (see Fig. 2), a roller assembly 16 where the printed web 11 and a transparent laminate 17 bond together, a cutting device 18 through which the bonded web 11 and laminate 17 pass, an indexing roller assembly 19, a stripper assembly 20 where waste label material 21 is removed for passage to a waste label collection reel 22, and a second dancer roller tensioning mechanism 23.
- the laminate 17 is delivered to the bonding roller assembly 16 from a laminate supply 24 through a dancer roller tensioning mechanism 25, the backing material 26 of the laminate 17 being separated therefrom at this location and delivered to a laminate waste collection reel 27.
- the foil 15 passes from a foil supply 28 through the hot platen printing device 14 and through an indexing roller assembly 29 to a foil rewind reel 30.
- a foil feed assembly is provided which permits an operator to thread the foil 15 between supply 28 and rewind 30 without risk of contact with the hot platen printing device 14.
- This assembly consists of a track 31 which would be located at position A of Fig. 2.
- a steel tape (not shown) passes through this track 31 and at one end is adapted to grip the foil 15 adjacent the foil supply 28 while its other end is acted upon by a pressure roller 32 which cooperates with a guide roller 33, the pressure roller 32 being rotatable by means of a handwheel 34.
- These are supported in a bracket 35 which also supports a stop 36 for the tape., the latter being hand threaded via the indexing roller assembly 29 to the rewind reel 30.
- the indexing roller assembly 19 comprises an indexing roller 37 rotatably carried between plates 38 and a braking roller 39 which cooperates with a plate 40.
- a pressure roller 41 cooperates with the indexing roller 37.
- cams 42, 43 cam 42 operating the indexing roller 37 and the pressure roller 41 and cam 43 operating the brake roller 39.
- Cam 42 cooperates with a follower 42A which is connected to a lever 44 which serves to move the pressure roller 41 into and out of nipped relationship with the indexing roller 37.
- the pressure roller 41 is carried between arms 45 pivotally mounted at 46.
- the indexing roller 37 is driven clockwise from cam 42 by a bellcrank lever 47 adjustably engaging in the slot 48 of a pivotal bar 49 to which is secured a bellcrank lever 50 secured to the axis of rotation of the indexing roller 37.
- the position of securement of the bellcrank lever 47 to the bar 49 determines the length of indexing stroke of the indexing roller 37.
- cam 43 via cam followers 41A, 42A and pivotal lever 51 serves to move the braking roller 39 towards and away from the plate 40.
- the braking roller 39 When indexing, the braking roller 39 is spaced from the plate 40 and the pressure roller 41 and indexing roller 37 are in nipped relationship, the web 15 being gripped by the braking roller 39 and the plate 40 just as indexing ceases and pressure roller 41 is pivoted away from nipped relationship with the indexing roller 37.
- the web 15 is thus always gripped either by braking roller 39 or pressure roller 41.
- a constant-tension dancer roller arrangement is provided where there is indexing of web material (i.e. label stock and laminate). It comprises a dancer roller 52 carried by a length-adjustable arm 53 which operates a cam 54 to apply or release a drum brake 55 applied or released in synchronism with indexing of the machine. A slipping clutch cooperates with the brake 55. A return spring 56 is secured to the arm 53 by a strap 57 passing around a pin 58.
- arm length is 61 inches while at laminate unwind it is, for example, 5 inches.
- a spring balance is employed to set the desired constant tension and with the figures given above and the brake and clutch set at 40 lb. ins. (brake set first) the spring balance force is 8.4 lbs at the label rewind. At laminate unwind the set pressure is 32 lb. ins. with a spring balance force of 6.7 lbs.
- Means is provided at the slotted bar of the indexing roller operating levers to provide a digital read-out on the machine thereby indicating to the operator whether or not machine registration is correct.
Abstract
A label printing machine, especially but not exclusively a hot foil label printing machine, has a feed assembly for stepwise indexing label stock in web form through the machine. The feed assembly comprises a web brake (39,40) and a web-indexing roller (37) and pressure roller (41) combination, whereof the web brake (39, 40) and pressure roller (41) are each controlled by lever (44, 51) means operated by a separate cam (42, 43). The arrangement is such that when the brake (39, 40) is open the indexing roller (37) with the pressure roller (41) in nipped relationship steps the web through the machine and when the brake (39, 40) is on the indexing roller (37) contra-rotates with the pressure roller (47) spaced therefrom.
Description
- This invention relates to a label printing machine, particularly to a hot foil label printing machine.
- It is an object of the present invention to provide such a machine incorporating primarily improvements in the assembly for feeding label stock through the machine; and secondarily in the threading of the foil through the machine between foil supply and foil rewind locations; and in ensuring a controllable constant tension in the label stock, laminate and foil as they are fed stepwise through the machine.
- According to the present invention there is provided, a label printing machine, especially but not exclusively a hot foil label printing machine, the machine comprising a feed assembly for stepwise indexing label stock in web form through the machine, and including a web brake and a web-indexing roller and pressure roller combination, the web brake and pressure roller each being controlled by lever means operated by a separate cam, the arrangement being such that when the brake is open the indexing roller with the pressure roller in nipped relationship steps the web through the machine and when the brake is on the indexing roller contra-rotates with the pressure roller spaced therefrom.
- The indexing roller is indexed from the pressure roller cam by a length-adjustable lever means, the length adjustment determining the amount of indexing of the web.
- Preferably, the hot foil label printing machine includes a foil feeder assembly comprising a foil feeder track, a flexible element housed within and movable along the track, the flexible element being securable to an end of foil adjacent the foil supply, and a winding mechanism to which the flexible element is secured and which serves to pull the flexible element and the foil along the track to a foil rewind.
- Preferably also, the label printing machine includes a web tensioning device comprising a dancer roller carried by a pivotal, length-adjustable, spring-return arm adapted to operate a cam-controlled brake, either to release or apply the latter depending on whether the web is being wound on or wound off a reel during indexing.
- An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:-
- Fig. 1 is a longitudinal flow diagram of label stock and laminate through a hot foil label printing machine;
- Fig. 2 is a transverse flow diagram of foil through the same machine;
- Figs. 3 and 4 are respectively a side view and an end view of a foil feeder assembly;
- Figs. 5 and 6 are respectively a side view and an end view of an indexing mechanism for label stock and laminate; and
- Fig. 7 is a diagrammatic view of a dancer roller tensioning mechanism.
- Referring to Figs. 1 and 2, the hot foil label printing machine comprises a
label stock supply 10 from which web 11 passes to alabel rewind reel 12 via a dancerroller tensioning mechanism 13, a hotplaten printing device 14 where the web 11 meets with the foil 15 (see Fig. 2), aroller assembly 16 where the printed web 11 and atransparent laminate 17 bond together, acutting device 18 through which the bonded web 11 andlaminate 17 pass, anindexing roller assembly 19, astripper assembly 20 wherewaste label material 21 is removed for passage to a waste label collection reel 22, and a second dancerroller tensioning mechanism 23. Thelaminate 17 is delivered to thebonding roller assembly 16 from alaminate supply 24 through a dancerroller tensioning mechanism 25, thebacking material 26 of thelaminate 17 being separated therefrom at this location and delivered to a laminatewaste collection reel 27. - The
foil 15 passes from afoil supply 28 through the hotplaten printing device 14 and through anindexing roller assembly 29 to afoil rewind reel 30. - A foil feed assembly is provided which permits an operator to thread the
foil 15 betweensupply 28 and rewind 30 without risk of contact with the hotplaten printing device 14. This assembly consists of atrack 31 which would be located at position A of Fig. 2. A steel tape (not shown) passes through thistrack 31 and at one end is adapted to grip thefoil 15 adjacent thefoil supply 28 while its other end is acted upon by apressure roller 32 which cooperates with aguide roller 33, thepressure roller 32 being rotatable by means of ahandwheel 34. These are supported in abracket 35 which also supports astop 36 for the tape., the latter being hand threaded via theindexing roller assembly 29 to therewind reel 30. - The
indexing roller assembly 19, according to the invention, comprises an indexingroller 37 rotatably carried betweenplates 38 and a braking roller 39 which cooperates with aplate 40. - A
pressure roller 41 cooperates with the indexingroller 37. - There are two
cams cam 42 operating the indexingroller 37 and thepressure roller 41 andcam 43 operating the brake roller 39. -
Cam 42 cooperates with a follower 42A which is connected to alever 44 which serves to move thepressure roller 41 into and out of nipped relationship with theindexing roller 37. Thepressure roller 41 is carried betweenarms 45 pivotally mounted at 46. - The indexing
roller 37 is driven clockwise fromcam 42 by abellcrank lever 47 adjustably engaging in theslot 48 of apivotal bar 49 to which is secured abellcrank lever 50 secured to the axis of rotation of theindexing roller 37. - The position of securement of the
bellcrank lever 47 to thebar 49 determines the length of indexing stroke of theindexing roller 37. - The
cam 43 via cam followers 41A, 42A andpivotal lever 51 serves to move the braking roller 39 towards and away from theplate 40. - When indexing, the braking roller 39 is spaced from the
plate 40 and thepressure roller 41 and indexingroller 37 are in nipped relationship, theweb 15 being gripped by the braking roller 39 and theplate 40 just as indexing ceases andpressure roller 41 is pivoted away from nipped relationship with theindexing roller 37. Theweb 15 is thus always gripped either by braking roller 39 orpressure roller 41. - A constant-tension dancer roller arrangement is provided where there is indexing of web material (i.e. label stock and laminate). It comprises a
dancer roller 52 carried by a length-adjustable arm 53 which operates acam 54 to apply or release adrum brake 55 applied or released in synchronism with indexing of the machine. A slipping clutch cooperates with thebrake 55. Areturn spring 56 is secured to thearm 53 by astrap 57 passing around apin 58. - There is a relationship between arm length and cam position. With the arm at 25° to the vertical, the point of the cam should trail from the vertical by 450 as shown. The arm length at label rewind, for example, is 61 inches while at laminate unwind it is, for example, 5 inches.
- A spring balance is employed to set the desired constant tension and with the figures given above and the brake and clutch set at 40 lb. ins. (brake set first) the spring balance force is 8.4 lbs at the label rewind. At laminate unwind the set pressure is 32 lb. ins. with a spring balance force of 6.7 lbs.
- Means is provided at the slotted bar of the indexing roller operating levers to provide a digital read-out on the machine thereby indicating to the operator whether or not machine registration is correct.
Claims (4)
1. A label printing machine, especially but not exclusively a hot foil label printing machine, the machine comprising a feed assembly for stepwise indexing label stock in web form through the machine, and including a web brake and a web-indexing roller and pressure roller combination, the web brake and pressure roller each being controlled by lever means operated by a separate cam, the arrangement being such that when the brake is open the indexing roller with the pressure roller in nipped relationship steps the web through the machine and when the brake is on the indexing roller contra-rotates with the pressure roller spaced therefrom.
2. A machine as claimed in Claim 1, in which the indexing roller is indexed from the pressure roller cam by a length-adjustable lever means, the length adjustment determining the amount of indexing of the web.
3. A machine as claimed in Claim 1 or 2 comprising a foil feeder assembly comprising a foil feeder track, a flexible element housed within and movable along the track, the flexible element being securable to an end of foil adjacent the foil supply, and a winding mechanism to which the flexible element is secured and which serves to pull the flexible element and the foil along the track to a foil rewind.
4. A machine as claimed in any one of Claims 1 to 3 comprising a web tensioning device comprising a dancer roller carried by a pivotal, length-adjustable spring-return arm adapted to operate a cam-controlled brake, either to release or apply the latter depending on whether the web is being wound on or wound off a reel during indexing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8131628 | 1981-10-20 | ||
GB8131628 | 1981-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0078136A1 true EP0078136A1 (en) | 1983-05-04 |
Family
ID=10525283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82305492A Withdrawn EP0078136A1 (en) | 1981-10-20 | 1982-10-15 | A label printing machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0078136A1 (en) |
GB (1) | GB2110189A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3119326A (en) * | 1960-02-29 | 1964-01-28 | Toledo Scale Corp | Printer delivery means |
GB1113796A (en) * | 1965-10-26 | 1968-05-15 | Auto Wrappers Norwich Ltd | Improvements in and relating to paper feeding apparatus |
DE1908271A1 (en) * | 1969-02-19 | 1970-09-10 | Siemens Ag | Unwinding device for paper supply provided in roll form for high-speed printers |
FR2240173A1 (en) * | 1973-08-08 | 1975-03-07 | Metal Box Co Ltd | |
US3926355A (en) * | 1974-10-21 | 1975-12-16 | Bobst Champlain Inc | Apparatus for intermittently feeding lengths of continuous sheet material at a constant velocity |
US4008839A (en) * | 1974-11-07 | 1977-02-22 | Koyo Jidoki Kabushiki Kaisha | Tape feeding apparatus |
-
1982
- 1982-10-15 EP EP82305492A patent/EP0078136A1/en not_active Withdrawn
- 1982-10-15 GB GB08229529A patent/GB2110189A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3119326A (en) * | 1960-02-29 | 1964-01-28 | Toledo Scale Corp | Printer delivery means |
GB1113796A (en) * | 1965-10-26 | 1968-05-15 | Auto Wrappers Norwich Ltd | Improvements in and relating to paper feeding apparatus |
DE1908271A1 (en) * | 1969-02-19 | 1970-09-10 | Siemens Ag | Unwinding device for paper supply provided in roll form for high-speed printers |
FR2240173A1 (en) * | 1973-08-08 | 1975-03-07 | Metal Box Co Ltd | |
US3926355A (en) * | 1974-10-21 | 1975-12-16 | Bobst Champlain Inc | Apparatus for intermittently feeding lengths of continuous sheet material at a constant velocity |
US4008839A (en) * | 1974-11-07 | 1977-02-22 | Koyo Jidoki Kabushiki Kaisha | Tape feeding apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB2110189A (en) | 1983-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19831103 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19841029 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HUDSON, WILLIAM RONALD Inventor name: ADAMSON, BRYAN |