EP0089642A1 - A printing machine for labels, tags, cards or the like either for distributing the printed labels or separating such labels from the siliconized support - Google Patents
A printing machine for labels, tags, cards or the like either for distributing the printed labels or separating such labels from the siliconized support Download PDFInfo
- Publication number
- EP0089642A1 EP0089642A1 EP83102706A EP83102706A EP0089642A1 EP 0089642 A1 EP0089642 A1 EP 0089642A1 EP 83102706 A EP83102706 A EP 83102706A EP 83102706 A EP83102706 A EP 83102706A EP 0089642 A1 EP0089642 A1 EP 0089642A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- roller
- drive roller
- printing
- labels
- 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
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 235000013305 food Nutrition 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/08—Label feeding
- B65C9/18—Label feeding from strips, e.g. from rolls
- B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
Definitions
- Tis invention relates to machines for printing and handliug self-adhesive labels, tags, cards or the like for use in identifying articles. For example, these machines are used in preparing tags for cloths articles, or in packaging prepared foods in supermarkets.
- the known point and cliché type printing machines are capable of printing self-adhesive labels, tags, cards or the like providing the same either in the form of a roll or previously cut one by one.
- Such machines (see U.S. Patent N. 4,218,030 to Avery) succeed in providing with printing also the separation of the label only by presetting a complicated labyrinth about the drive roller upstream of the printing device.
- the above object has been achieved by providing a printing machine, in which the assembly comprising the drive roller for moving the web and the pressure roller adhering to said drive roller is made movable, so that it can be placed at a first position immediately upstream of the printing head and at a second position downstream of the doctor blade, so that the web can encircle the drive roller for a substantial length of its periphery.
- the printing needle head may be preceded by another type of buffer or cliche printing device, which presets the fixed text for each label of the like.
- the second position for the above mentioned roller assembly is such that the web traction produced by the final take up roller will provide a component pressing the pressure roller against the drive roller, thus increasing the web adhesion thereon.
- An improvement to the present invention further provides that the take up roller, instead of being conventionally driven by an asynchronous motor through a clutch, is driven by a D.C. motor developing two torques, that is a minor torque when the printing device is writing and the web is stand-still, and a major torque when the stepper motor operating the drive roller moves the web to the next line or to the next label.
- reference numeral 10 designates a roller 10 having a web 11 of labels, tags, cards or the like wound up thereonl
- This web 11 is stretched by a known type of tensioning device comprising an arm 18 oscillating about a pin 12 and carrying a roller 13 which, when required, can recover some length of web 11 holding it taut upstream of the drive roller 20.
- this web 11 travels sane free distance, during which provision can be made for performing one or more printing operations of a fixed text by means of a cliché or buffer, schematically shown at 19.
- the whole assembly comprising said rollers 20 and 21 is movable between two positions; that is to say, a position indicated by full line in Fig; 1 immediately upstream of the printing head 14, and another position downstream of the doctor blade 15. This last position has been shown by dash-dot line. Said second position is selected so that the traction force F produced by the motor of the take up roller 17 will produce a component P tending to move said pressure roller 21 near the drive roller 20, thus increasing the adhesion of the web on said roller.
- a needle printing head 14 is disposed for printing a text which may time by time vary. Downstream of said head 14 a doctor blade 15 is provided for label separation, then a cutting device 16.
- the web 11 will follow the following path: from said roller 10 the web is caused to pass about roller 13, then between said two rollers 20 and 21, in their full line position, whereupon each label or the like is printed by said head 14, then cut by the cutting device 16.
- the take up roller 17 may be driven by an asynchronous motor through a clutch limiting the take up torque and preventing the web movement during the writikg period of each line.
- the take up roller could also be operated by a D.C. motor supplied with two current values, so as to provide two different torques, the minor of which will be effective as the printing device is writing, that is when the stepper motor is stand-still this torque will only serve to maintain the web at stretched out condition.
- the other higher torque will be effective when said stepper motor rotates and will serve to increase the force required for separation of the label or the like.
Landscapes
- Labeling Devices (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
Description
- Tis invention relates to machines for printing and handliug self-adhesive labels, tags, cards or the like for use in identifying articles. For example, these machines are used in preparing tags for cloths articles, or in packaging prepared foods in supermarkets.
- The known point and cliché type printing machines are capable of printing self-adhesive labels, tags, cards or the like providing the same either in the form of a roll or previously cut one by one. However such machines (see U.S. Patent N. 4,218,030 to Avery) succeed in providing with printing also the separation of the label only by presetting a complicated labyrinth about the drive roller upstream of the printing device.
- Therefore, it is the object of the present invention to provide in a simple and economical way a printing machine allowing both the distribution of just printed self-adhesive labels, tags, cards or the like together with the associated support, and the supply of these labels separated from said support.
- The above object has been achieved by providing a printing machine, in which the assembly comprising the drive roller for moving the web and the pressure roller adhering to said drive roller is made movable, so that it can be placed at a first position immediately upstream of the printing head and at a second position downstream of the doctor blade, so that the web can encircle the drive roller for a substantial length of its periphery.
- It is provided in such cases that the printing needle head may be preceded by another type of buffer or cliche printing device, which presets the fixed text for each label of the like.
- Preferably, the second position for the above mentioned roller assembly is such that the web traction produced by the final take up roller will provide a component pressing the pressure roller against the drive roller, thus increasing the web adhesion thereon.
- An improvement to the present invention further provides that the take up roller, instead of being conventionally driven by an asynchronous motor through a clutch, is driven by a D.C. motor developing two torques, that is a minor torque when the printing device is writing and the web is stand-still, and a major torque when the stepper motor operating the drive roller moves the web to the next line or to the next label.
- The present invention will be more clearly explained with reference to an exemplary embodiment that has been shown in the accompanying drawings, in which:
- Fig. 1 is a diagrammatic view of the printing machine according to the inventiok; and
- Fig. 2 is an enlarged view showing the assembly comprising the pressure roller and drive roller.
- Referring to the accompanying drawings, it will be seen that
reference numeral 10 designates aroller 10 having aweb 11 of labels, tags, cards or the like wound up thereonl Thisweb 11 is stretched by a known type of tensioning device comprising anarm 18 oscillating about apin 12 and carrying aroller 13 which, when required, can recover some length ofweb 11 holding it taut upstream of thedrive roller 20. - Then, this
web 11 travels sane free distance, during which provision can be made for performing one or more printing operations of a fixed text by means of a cliché or buffer, schematically shown at 19. - Then, said
web 11 is caused to pass between thedrive roller 20 made of rubber or other high adhesion material, which is driven by a stepper motor (non shown). Apressure roller 21 is pressed against thisroller 20 and mounted to resiliently urge against saidroller 20. This pressure is exerted, for example, by a spring schematically shown at 22 of Fig. 2. - The whole assembly comprising said
rollers printing head 14, and another position downstream of thedoctor blade 15. This last position has been shown by dash-dot line. Said second position is selected so that the traction force F produced by the motor of the take uproller 17 will produce a component P tending to move saidpressure roller 21 near thedrive roller 20, thus increasing the adhesion of the web on said roller. - Immediately downstream of the
roller assembly 20, 21 aneedle printing head 14 is disposed for printing a text which may time by time vary. Downstream of said head 14 adoctor blade 15 is provided for label separation, then acutting device 16. - During operation, when only the label printing is desired, the
web 11 will follow the following path: from saidroller 10 the web is caused to pass aboutroller 13, then between said tworollers head 14, then cut by thecutting device 16. - During the path between said
roller 13 and the tworollers 20 and 21 a repetitive printing of an always identical text can be carried out by means of the buffer orcliche 19. This will shorten the printing times of theneedle head 14, which can then provide only for writing the variable portion of each text on the label. - When desiring to provide also for separating the self-adhesive labels, tags or cards from the siliconized support use will be made of
doctor blade 15, causing theweb 11 to follow a new path, after displacing saidrollers roller 10 toroller 13, then directly to the twoprinting devices doctor blade 15 for separation. Now, theweb 11 has to undergo a sudden change in direction, in order to provide the label separation, then winds up on a substantial portion of thedrive roller 20 and on thepressure roller 21 resiliently pressed against theroller 20, and finally winds up on the take uproller 17. As it will be seen, in both cases the direction of rotation ofroller 20 remains unchanged. - The take up
roller 17 may be driven by an asynchronous motor through a clutch limiting the take up torque and preventing the web movement during the writikg period of each line. - However, the take up roller could also be operated by a D.C. motor supplied with two current values, so as to provide two different torques, the minor of which will be effective as the printing device is writing, that is when the stepper motor is stand-still this torque will only serve to maintain the web at stretched out condition. The other higher torque will be effective when said stepper motor rotates and will serve to increase the force required for separation of the label or the like.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2118682U | 1982-03-18 | ||
IT2118682U IT8221186V0 (en) | 1982-03-18 | 1982-03-18 | PRINTER FOR LABELS, CARDS OR SIMILAR SUITABLE FOR REALIZING BOTH THE DISTRIBUTION OF THE PRINTED LABELS AND THE RELEASE OF THEMSELVES FROM THEIR SILICONE SUPPORT. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0089642A1 true EP0089642A1 (en) | 1983-09-28 |
EP0089642B1 EP0089642B1 (en) | 1985-08-28 |
Family
ID=11178072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19830102706 Expired EP0089642B1 (en) | 1982-03-18 | 1983-03-18 | A printing machine for labels, tags, cards or the like either for distributing the printed labels or separating such labels from the siliconized support |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0089642B1 (en) |
DE (1) | DE3360645D1 (en) |
IT (1) | IT8221186V0 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1143063A (en) * | 1966-02-25 | 1969-02-19 | Wilhelm Kraut | Printing mechanisms |
EP0036193A1 (en) * | 1980-03-17 | 1981-09-23 | LEPTONS ITALIA S.p.A. | A paper transport device for label printing machines or the like |
-
1982
- 1982-03-18 IT IT2118682U patent/IT8221186V0/en unknown
-
1983
- 1983-03-18 EP EP19830102706 patent/EP0089642B1/en not_active Expired
- 1983-03-18 DE DE8383102706T patent/DE3360645D1/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1143063A (en) * | 1966-02-25 | 1969-02-19 | Wilhelm Kraut | Printing mechanisms |
EP0036193A1 (en) * | 1980-03-17 | 1981-09-23 | LEPTONS ITALIA S.p.A. | A paper transport device for label printing machines or the like |
Also Published As
Publication number | Publication date |
---|---|
IT8221186V0 (en) | 1982-03-18 |
EP0089642B1 (en) | 1985-08-28 |
DE3360645D1 (en) | 1985-10-03 |
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