Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
  • B65B41/18—Registering sheets, blanks, or webs
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
  • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
  • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
• • 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
  • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
  • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
  • B65H23/1882—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web
• • 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
  • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
  • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
  • B65H23/1882—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web
  • B65H23/1886—Synchronising two or more webs

Definitions

• the invention relates to an arrangement according to the preamble of claim 1, for the precise joining of a first strand of material which has elements in sections of a section length separated by separating points, with a second strand of material which has markings which are at a predetermined distance apart from one another Any existing difference corresponds to the section length, with a first device, by means of which the two material strands are connected to one another, a transport device, by means of which the two material strands are transported in sections by the predetermined distance, and with a second device, by means of which the first material strand is always then an element is applied if after the further transport of the two material strands by a section the length of the first material strand between the first device and the second device is one m corresponds to predetermined multiples of the section length plus an offset which can be set by means of an offset device, and with a transport device by means of which the two material strands are transported further by the predetermined distance.
• a blister pack usually consists of a thermoformed film made of plastic or paper, in which depressions called so-called courtyards are formed, in which the tablets are located, which are sealed by means of a cover film.
• a printed image is usually on the cover film, which usually contains information about the tablets, such as data about when which tablets are to be taken. It is therefore crucial that this information is placed on the cover film according to the position of the tablets and thus the courtyards.
• DE 195 25 713 C1 discloses a device for accurately printing a marking-free continuous film, by means of which printed images of a first predetermined length are applied to a metal film, the film being divided into sections of a second predetermined length by means of a separating device after printing and the printed images with respect to the separation points between the sections must be applied to the film in a precise position.
• the known device there is a printer which has an input for triggering a positionally accurate printing process. Furthermore, there is a sensor which always emits a signal at its output when the length of the film between the separating device and the position corresponding to the beginning of a section to be printed corresponds to a predetermined multiple of the second predetermined length.
• a first strand of material which has elements in sections of a section length separated by separating points
• a second strand of material which has markings which have a predetermined distance from one another, which corresponds to a possibly existing difference in the section length
• a first device by means of which the two material strands are connected to one another
• a transport device by means of which the two material strands are transported in sections by the predetermined distance
• a second device by means of which an element is then always applied to the first material strand, if after the further transport of the two material strands by a section the length of the first material strand between the first device and the second device is a predetermined multiple of the cut cut length, if necessary plus an offset that can be set by means of an offset device, and with a transport device by means of which the two material strands are transported in sections by the predetermined distance, characterized in that a sensor is present by means of which the difference is detected
• the position shifts can be corrected by setting the offset as a function of the difference.
• the transport path by which the second strand of material is moved forward in sections and, since the first strand of material is connected to the second strand of material, also the corresponding transport path of the first strand of material changes.
• the elements are always applied to the first material strand after the two material strands have been transported onward when the length of the first material strand between the first device and the second device is a multiple of the section length, the elements are shifted relative to the due to the changed transport route, newly defined separation points take place.
• the offset can be compensated for by setting the offset as a function of the difference.
• the position of the elements on the first strand of material is also corrected if the transport path of the first strand of material changes, for example due to a change in the spacing of the markings on the second strand of material.
• An embodiment of the invention has been found to be particularly advantageous in which the sensor is arranged such that the length of the second strand of material between the sensor and the first device is the length of the first strand of material between the first device and the second device when the application is triggered of the element.
• the sensor detects the differences added up to the sensor position.
• the correction of the position of the Elements on the first strand of material with respect to the first device at the same point where the occurrence of a difference in the section length is determined.
• This has the advantageous consequence that the correction of the position of the element on the first strand of material can be carried out very easily. Essentially, no special measures are required to correct the position of the element on the first strand of material.
• the difference detected by the sensor is divided by the number of markings which the part of the second strand of material has, which is located between the sensor and the first device when the application of the element is triggered, and the Offset corresponds to the product of the result of the division and the predetermined multiple of the section length.
• the sensor cannot be arranged such that the length of the second strand of material between the sensor and the first device corresponds to the length of the first strand of material between the first device and the second device when the application of the element is triggered, it is necessary to calculate the offset.
• the difference per marking is determined. If this difference is multiplied by the predetermined multiple of the section length, which corresponds to the length of the first strand of material between the first device and the second device when the application of the element is triggered, a difference is obtained which would result if the length of the second strand of material between the sensor and the first device corresponds to the length of the first strand of material between the first device and the second device when the application of the element is triggered. If you set the offset according to the difference calculated in this way, you get a very good correction of the deviation.
• Figure 1 is a schematic representation of an inventive
• Figure 2 is a schematic representation of two to be joined
• Figure 3 is a schematic representation of two to be joined
• Figure 4 is a schematic representation of two to be joined
• a first material strand 1 designed as aluminum foil is connected in a first device 3 designed as a sealing station to a second material strand 2 formed as a plastic film in a manner according to the invention.
• the plastic film 2 has so-called depressions. Several depressions are combined to form a group, of which the front edge of the first courtyard, viewed in the direction of transport, represents a marking 2a. The markings 2a are at a predetermined distance A2 from one another.
• the courtyards are embossed with an embossing tool 15 into the plastic film 2, which is unwound from a roll 14.
• a filling station not shown in Figure 1 tablets are placed in the courtyards. After inserting the tablets, the courtyards in the sealing station 3 are sealed with the aluminum foil 1. This creates a so-called blister pack. Since such blister packs must contain information on a regular basis, the aluminum foil 1 has a printed image B. It is imperative that the printed image B is positioned precisely relative to the courtyards.
• the printer 4 For printing on the aluminum foil 1, which is unwound from a roll 13, the latter is passed through a printer 4 in which the aluminum foil 1 is continuously transported. To trigger a printing process the printer 4 has an input 4a. In the transport direction of the aluminum foil 1, it is deflected behind the printer 4 by a first deflection roller 12. Behind the first deflection roller 12, the aluminum foil 1 wraps around an S-shaped dancer roller 10 and an offset roller 6. The dancer roller 10 and the offset roller 6 are each located in the bottom of loops which are formed by the course of the aluminum foil 1. Behind the offset roller 6, the aluminum foil 1 is deflected around a second deflection roller 11.
• the sealing device 3 In front of the removal device 5, the sealing device 3 is arranged, in which the aluminum foil 1 is connected to the plastic film 2. The plastic film 2 is thus also moved further by means of the transport device 5.
• the two foils 1, 2 are each moved forward by means of the transport device 5 until the marking 2a formed by the front edge of a respective first depression is located at a fixed point T0 of the sealing station 3. This means that the two foils 1, 2 are each moved on until the front edge 2a of the first depression of the next group of depressions is at the fixed point T0. Since the leading edges 2a are at a predetermined distance A2 from one another, both foils 1, 2 are each moved further by the predetermined distance A2.
• the dancer roller 10 and the offset roller 6 are arranged such that they can be moved towards and away from each other. While the offset roller 6 can be locked and can only be moved by means of the adjusting unit 6a, the dancer roller 10 is freely movable.
• a dancer roller sensor 9 is arranged in the lower region of the loop of the aluminum foil 1 which wraps around the dancer roller 10.
• the dancer roller sensor 9 is designed as a light barrier and has an output 9a. A signal always appears at the output 9a of the dancer roller sensor 9 when the dancer roller 10 is in a certain position in front of the dancer roller sensor 9.
• the output 9a of the dancer roller sensor 9 is connected to the input 4a of the printer 4.
• the length of the aluminum foil 1 between the fixed point T0 and the printer 4 is shortened by the transport of the two foils 1, 2, which occurs at a speed which corresponds to a multiple of the speed at which the aluminum foil 1 is moved through the printer 4
• the dancer roller 10 is moved upward so that it is located above the dancer roller sensor 9.
• the dancer roller 10 is lowered again by the continuous transport of aluminum foil 1 by the printer 4.
• the length of the aluminum foil 1 is between the fixed point T0 and that of the beginning of a section to be printed corresponding point T, for example, twelve times the length A1 of a section. Since the printer 4 receives a signal for printing at that very moment, the print image is set exactly at the start T of a section to be printed.
• the length A1 of a section to be printed corresponds to the predetermined distance A2 at which the markings 2a are arranged relative to one another, a very precise positioning of a printed image B in a respective section to be printed is achieved.
• the predetermined distance A2 can change, for example due to external influences, and no longer corresponds to the section length A1 but rather to the section length A1 plus or minus a difference D, the two foils 1, 2 and thus the aluminum foil 1 are plus or minus the section length A1 minus the difference D moved on.
• the printed image B is applied to the aluminum foil 1 regardless of the size of the further transport of the aluminum foil 1, the position of the printed image B is shifted relative to the depressions in the plastic film.
• the arrangement therefore has an edge sensor 7, by means of which it can be determined by which path the position of a front edge 2a of the first depression of a group of depressions has shifted.
• the edge sensor 7 For the groups of depressions which are located between the edge sensor 7 and the fixed point T0, the predetermined distance A2 of the front edge of the first depression of one group of depressions to the front edge 2a of the first depression of the next group of depressions has not changed the edge sensor 7 emits a signal which corresponds to a correct distance.
• the edge sensor 7 emits a signal which corresponds to the sum of the individual shortenings of the distance A2 of the front edges 2a of the first depressions.
• the edge sensor 7 In the case of the groups of depressions which are located between the edge sensor 7 and the fixed point TO, the predetermined distance A2 of the front edge 2a of the first depression of one group of depressions has increased to the front edge 2a of the first depression of the next group of depressions the edge sensor 7 outputs a signal which corresponds to the sum of the individual increases in the distance A2 of the front edges 2a of the first depressions.
• the shortening or the increase in the distance A2 of the front edges 2a of the first depressions of two successive groups of depressions is determined from the signal of the edge sensor 7. This is done in that the sum of all displacements detected by the edge sensor 7 is divided by the number of groups of depressions which are located between the edge sensor 7 and the fixed point TO. This value is then multiplied in the controller 8 by the multiple of the section length A1, which is based on the length of the part of the aluminum foil 1 which is located between the fixed point T0 and the printer 4. The offset roller 6 is then shifted by this value by means of the adjusting device 6a. In this way, a correction of the position of the printed image B on the aluminum foil 1 is achieved.
• the section length A1 of the aluminum foil 1, in which a printed image B is arranged in each case corresponds to the predetermined distance A2 of the plastic film 2 in which the front Edges 2a of the first wells of two successive groups of wells are located.
• the front edge 2a of the first depression, which is located in front of the edge sensor 7, is located in the middle of an area 7b which can be detected by the edge sensor 7.
• the offset roller 6 is in its basic position. That is, it is set so that the printer 4 applies the printed image B to the aluminum foil 1 in such a way that it begins at the separation point T between two successive sections.
• the predetermined distance A2 in which the front edges 2a of the front depressions of two successive groups of depressions are arranged, has decreased, as can occur, for example, when the plastic film 2 shrinks.
• the predetermined distance A2 therefore no longer corresponds to that
• Section length A1 of the aluminum foil 1. It has decreased by a difference D-.
• the aluminum foil 1 is thus no longer transported by the section length A1 but by the predetermined distance A2 which is smaller by the difference D-, which in turn has the consequence that the printed image B would start in the previous section with reference to the preceding separation points T.
• the position of the printed image B is shifted until it is at the
• the front edge 2a of the first depression which is located in front of the edge sensor 7, is no longer in the middle of the area 7b covered by the edge sensor 7, but on the right edge.
• the front edge 2a of the first depression has shifted to the right by the amount F-, which corresponds to the sum of the differences D- between the groups of depressions located between the fixed point T0 and the edge sensor 7.
• the consequently changed output signal of the edge sensor 7 is used to correct the offset set by the offset roller 6. The That is, the position of the offset roller 6 is changed until the printed image B is at the new separation point T-.
• the predetermined distance A2 has increased.
• the predetermined distance A2 therefore no longer corresponds to the section length A1 of the aluminum foil 1. It has increased by a difference D +.
• the aluminum foil 1 is thus no longer transported by the section length A1 but by the predetermined distance A2 increased by the difference D +, which in turn has the consequence that the printed image B would start at a distance from the separation point T with respect to the preceding separation points T.
• the position of the printed image B is shifted until it is at the point at which the aluminum foil 1 is transported further by the section length A1 plus the difference D + in accordance with the new separation point T +.
• the front edge 2a of the first depression which is located in front of the edge sensor 7, is no longer in the middle of the area 7b covered by the edge sensor 7, but on the left edge.
• the front edge 2a of the first depression has shifted to the left by the amount F +, which corresponds to the sum of the differences D + between the groups of depressions located between the fixed point T0 and the edge sensor 7.
• the consequently changed output signal of the edge sensor 7 is used to correct the offset set by the offset roller 6. That is, the position of the offset roller 6 is changed until the printed image B is at the new separation point T +.
• the invention has essentially been described with reference to a printing device known from DE 195 25 713 C1, its possible uses are not limited to the use of such a printing device.
• the two strands of material are two foils to be connected to each other, with the If a film is applied to a print image, this print image can be applied with any printing device, in particular with a so-called plate printer, flexographic printer or screen printer.
• the two material strands can be transported in sections discontinuously.
• the invention can also be used in an arrangement in which, for example according to DE 198 50 275 A1, the material strands are continuously moved on.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
• Length Measuring Devices By Optical Means (AREA)
• Replacement Of Web Rolls (AREA)
• Collation Of Sheets And Webs (AREA)
• Manufacture Of Motors, Generators (AREA)
• Vending Machines For Individual Products (AREA)
• Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
• Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
• Inking, Control Or Cleaning Of Printing Machines (AREA)
• Controlling Sheets Or Webs (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=29796634

Family Applications (1)

Country Status (8)

Families Citing this family (16)

Family Cites Families (6)

• 2002
  • 2002-09-16 DE DE10243084A patent/DE10243084B3/de not_active Expired - Fee Related
• 2003
  • 2003-07-17 EP EP03797159A patent/EP1542920B1/fr not_active Expired - Lifetime
  • 2003-07-17 DE DE10393775T patent/DE10393775D2/de not_active Expired - Lifetime
  • 2003-07-17 JP JP2004536819A patent/JP4065878B2/ja not_active Expired - Fee Related
  • 2003-07-17 WO PCT/DE2003/002391 patent/WO2004026744A1/fr active IP Right Grant
  • 2003-07-17 CA CA002498654A patent/CA2498654C/fr not_active Expired - Fee Related
  • 2003-07-17 DE DE50309803T patent/DE50309803D1/de not_active Expired - Lifetime
  • 2003-07-17 CN CNB038220172A patent/CN100515895C/zh not_active Expired - Fee Related
  • 2003-07-17 ES ES03797159T patent/ES2303913T3/es not_active Expired - Lifetime
  • 2003-07-17 AT AT03797159T patent/ATE394331T1/de active

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events