FI116279B - Method and apparatus for measuring and marking reels - Google Patents

Description

116279

METHOD AND APPARATUS FOR MEASURING AND MARKING ROLLERS

The present invention relates to a method and apparatus for measuring, marking, and / or reading markings on rolls of paper, pulp, cardboard or plastic rolls in a row, and / or readings thereof. The measuring site can be located immediately after the winder, but also away from the roller groups. the movements are usually carried to the measuring site by conveyors.

Before packing, each roll is labeled with a barcode, for example inkjet ink, self-adhesive labels, etc. At a minimum, the tag includes a tag that will allow subsequent roll progress to be tracked / traced from the process control system. It remains necessary to ensure that the marking is legible and that the identifier corresponds to the physical dimensions of the roll. This may be done, for example, by a laser reader, a camera or other known method. Roller identification is still required when returning rolls from the intermediate storage. When moving the rolls from the measuring position to the packing group formation station, it is advantageous to know the exact location and dimensions of the individual rolls at the transfer conveyor pick-up station. The position of the rolls has changed from the position according to the cut due to separation and scrolling after the cut. The measurement can be done with a laser beam, a photocell or utilizing other known techniques.

»#: Nowadays, the measurement and marking of a roll is done in separate positions assigned to them, one roll at a time. One-to-one marking is slow, and locating equipment in often confined spaces is problematic. Measuring / marking equipment in stand-alone positions requires multiple transfer mechanisms and support structures, resulting in expensive: ': costs. Measurements related to quality control and accompanying measures are generally performed manually. This entails costs eg. in the form of pay and security arrangements.

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FI 104483B describes a method and arrangement for marking customer rolls after a winder. The publication details the typical post-winder operation. There are many limitations to this solution. The scope described in the invention is limited to measuring the dimensions of the roll. The measuring station is outside the scroll zone. Marking is done in a fixed position with nothing else. That is, multiple intervention stations, multiple structures are required, which entails costs. There is little opportunity for intermediate storage of rolls. This reduces operational flexibility in situations where the rolls cannot be moved forward, such as packaging. Further, in the reference method, one roll is marked at a time, which slows down operations and thus limits capacity.

The method and apparatus of the invention provide a significant improvement in the above disadvantages. To accomplish this, the method of the invention is characterized by what is disclosed in the characterizing part of the method claims. The device according to the invention is again characterized by what is stated in the characterizing part of the claims.

An important advantage of the invention is that the necessary measuring and marking equipment can be located in connection with the roller control device utilizing its structures. Also, the movement of the control unit in the roll direction can be utilized. The operations of this invention may be performed at a time when the scroll control unit does not have to perform scrolling tasks. Saves space, time and avoids multiple structures. If the measurement, marking and / or identification units are positioned to move with their own sled, · .- ·! Here too, common guides with the scroll control unit can be utilized. The operations described may be performed in a number of alternative positions within the control unit V I. Also, any changes to the performance drives Γ * that may occur are easy to implement. ·, In the case the transfer / addition of units is sufficient '; ohjausmuutoksineen.

♦ * v, The method and apparatus of the invention can also be used in a roller measurement location separate from the winder functions.

3 116279 An example of this is the so-called. a wagon conveyor system in which the rolls are transported in groups and then separated for separate transport, for example for packaging. The method and apparatus of the invention are then used to determine the position of the individual rollers or subassemblies within the group, to separate them and to convey them further.

By incorporating the quality control measures of the rollers into the system of the invention, post-cutter operation is fully automated. In this case, labor costs and security savings are significant.

The invention will now be explained in more detail with reference to the accompanying drawings.

Figure 1 is a side elevational view, partly in section, of a typical method and apparatus of the invention connected to a scroll control system.

Figure 2 illustrates an embodiment of the invention, viewed from the top of the ramp.

Figure 3 is a top view of a ramp showing another embodiment of the invention.

·. Figure 4 is a side elevational view of the solution of Figures 2 and 3.

; Figure 5 is a side view of a third embodiment of the invention.

; Figure 6 shows a fourth view of the invention, viewed from the top of the ramp; embodiment.

In the figures, the units are partially schematically illustrated.

The units of quality control, measurement, marking, and reading are collectively known as: '· y, collectively known as data units and their aggregate as data sets.

Figure 1 illustrates a roll group 1 rolling control system to which a device according to the invention is connected in a preferred embodiment. At the upper end of the ramp, a group 1 of cut rolls is moved from the winder or from the conveyor after cutter 4 116279, roll group 1 rolls along an inclined plane 2, already touching a moving element 3 which is substantially parallel, which is part of the apparatus described below.

The contact member 3 is secured to a projection 4 which engages the carriages 5 through the hinges 6. The carriages 5 move with the support wheels 8 in the guides 7. The driving force to the carriages 5 is obtained from the power unit 9, which is preferably a gear motor, attached to the shaft 10. Transmission wheels 11 are mounted on one end of the guides 7, and drive wheels 13 are mounted on the other ends. The transmission is preferably carried out by means of toothed belts 12 which fasten at their ends to the carriages 5 and rotate through the drive wheels 11 and the pulleys 13.

There are two sleds 5, guides 7 and belt drives 11,12,13, one on each side of the scroll area, most preferably above the rollers 1. Such structures are known per se, for example, from portal robots.

The combination of the carriages 5, the projection 4 and the contact member 3 forming the scroll control unit is abbreviated as the control unit 14.

In the order of the embodiment, the positions of the contact member 3 at various stages are described by the notation PI-P7. For example, the operation may be as follows.

j When receiving roll group 1 in position P1, the control unit · ,; 14 retracts in front of roll group 1 at a slower scrolling speed, whereby roll group 1 reaches control unit 14. Control unit 14 slows down and leaves the separator stop array S (= P2) rollers to be separated from the group, for example, every other. Other rolls 0 i stop control unit 14, for example, a half roller diameter: from the foregoing, the position P3. At positions P2, P3, for example, the hardness of the rollers, the quality of the cut, the end: · '·: straightness etc. can be measured.

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After quality control and any other measures that may be taken. the separation stop flaps let there, the remaining rollers roll 5116279 into position P3. The control unit 14 then puts the rollers into position P4. Typically, this position measures the position and / or diameter and width of the individual rollers in the array as well as the width as described below. According to this measurement data, a conveyor C1 in the direction of the axis of rotation of the roller group is controlled, which conveys the rolls according to their position for further processing, e.g. Utilizing position and / or dimensional data, they are tagged before the rolls are forwarded.

Only a portion of the roller group can be moved at a time, for example every other roller, to a conveyor C1 where the above functions are performed. This is especially true when marking at the end of the roll. In a second step, the remaining portion is transferred to the conveyor.

Under normal circumstances, the control unit 14 returns at this point to the beginning of the scrolling level 2 to receive a new set of rollers 1. To speed up the operation, the power units 15, for example compressed air cylinders, raise the projection 4 to the up position. In this case, it will not collide with any rollers still on the return journey conveyor C1.

For example, in the following situations, the control unit 14 puts the rollers forward on the ramp: - The rollers rejected by the quality control are brought to position P5, from which: conveyor C2 takes them away.

- If the rolls cannot be transferred to conveyor C1, for example: while the packing station (s) is stationary, it is preferable to temporarily store, \! | rollers, for example, bringing them to the lower end of the ramp, where: ·· *: the power units 15 raise the projection 4 with the contact member 3 up to position P6. The rollers are then rolled forward and stored: by conventional methods. The control unit 14 now returns to the upper end of the ramp to position P7 and the power units 15 lower the projection 4 into the lower position of the contact member 3 to receive the next roll group 1.

When returning the rolls from the intermediate storage, they are rolled into the operating area of the control unit 14, for example, the horizontal part of the plane L.

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At station P6, the waiting contact member 3 descends and the control unit 14 pushes the rollers onto the conveyor C1. In this case, the position of the rollers is measured and / or identified and recorded by reading the identification mark and possibly some control information such as diameter or / and width.

A preferred location for both measurement, marking, and reading is the Pick-up location C1 of the conveyor. In this case, the marking on the diaper can be read from the intermediate storage of the roll, even after scrolling, at the pick-up location C1 from the same rotation angle position where the marking occurred. The measurement data can be used for tagging the rolls as well as grouping the rolls and for example transferring them to a packaging machine.

Another preferred location for measuring and marking the rolls is before the conveyor C1, e.g., the position P3, whereby the preceding group or portion thereof may be on the conveyor C1 and, once released, the entire labeled group may be transferred to the conveyor and immediately thereafter. In this case, the rolls do not have to wait for measurement or marking operations, and thus the roll handling capacity is higher.

In this case, the rolls returned from the intermediate storage can preferably be measured and the marking on the jacket read at another location at the end of the circumference of the rolls, so that the marking on the roll: ·· .. is the same as the marking.

: The system is controlled by the most economically programmable logic.

Fig. 2 shows a device according to the invention in connection with a winder: a scroll plane 2 connected to a scroll control unit.

In the substantially rolling guides 7, the movable carriages 5 are provided with a guide 23 substantially parallel to the scroll axis of the roller group 1, which is guided by the carriage 24. The carriage is secured to an essentially vertical moving arm 25 which, ·. ·! the lower end attaches to the data unit 26, 27, 28, 29. The data unit may: consist of one or more data units, such as a quality control unit 26, a measurement unit 27, a marking unit 28 and a reading unit 29. The data unit may consist of several independent parts.

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Figure 2 illustrates the positions of the data set within its operating range, which preferably covers the entire scroll plane area. For example, at the separation stops S, the information units can be brought against or near both ends and the diaper surface of each roll of the group.

The data set is connected, directly or indirectly, to the production control information system and / or the winder control system, which provides individualized information for marking, measuring, registering, identifying, etc., the rolls in the group.

The functions of the data set / applicable technology may be described below:

The quality control unit 26 may obtain information about the roll hardness, the quality of the cut, the straightness of the end, etc. The measurement is based on known techniques such as ultrasound, laser beam and / or the like. It is also possible to mount the television camera at the end of the arm 25, so that the operator can monitor the desired objects from his monitoring station without having to go up to the level.

The measuring unit 27 measures the physical quantities of the rolls, such as width and diameter, as well as the locations of the rolls. The measurement is based on the utilization of prior art. Photo sensor, laser beam or similar senses: sheath height and / or end edge. A pulse encoder or the like attached to the transmission, for example to the shaft of the transmission device, measures the current position of the \ data unit. The same solution is applicable \! for transferring the unit of measurement in both the 23 direction (H) of the guide and the 25 direction of travel (V). The measurement can also be performed using only horizontal motion (H), for example with a beam reflecting from the target.

The measurement may also be carried out with the measuring unit * j in place and the measurement performed fan-or linearly by "scanning" or by means of an elongated measuring device extending over a group of rollers.

* *

The marking unit 28 provides each roll with an identifier which: 1 allows the roll to be tracked in the future. The marking may be effected by known techniques, such as ink-jet printing or self-adhesive labels, and may be applied to the roll diaper or end.

The reading unit 29 may check that the marking made by the marking unit 28 is readable and / or the identifier corresponds to the physical quantities of the roll. In addition, the reading unit identifies and registers rolls returned from, e.g. The construction of the reading unit is based on known technology, a barcode scanner, a camera or the like.

The structures and transmission of the carriage 24 and the arm 25 are implemented in the prior art, for example by applying the transmission solution of the control unit 14 or the gear / gear option.

The data units attached to the same shaft 25 can be attached to the end of the shaft side by side or on a revolver principle, where known solutions can be found, for example, in machine tool changers.

Figure 3 illustrates an alternative embodiment in which some of the information units, e.g., the quality control unit 26 and the measurement unit 27, are at one end 25A and the other units 28,29 at the other end 25B. All may be attached to the same carriage 24, or part / each provided with its own horizontal (H) - 24A, 24B and / or vertical (V) - 25A, 25B movement mechanism. Grouping can be different depending on available space, tasks, operating time, etc.

Figure 4 shows an embodiment of the carriage 24, the guide 23 and the arm 25.

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Fig. 5 shows an alternative solution in which the transverse movement of the data units towards the rollers is achieved by the pivoting lever 30 / levers of the carriage 31.

Fig. 6 shows an alternative solution in which the guide 23 is V arranged vertically (V) movable and the information unit is:: fixed to the carriage 24 movable horizontally (H).

Vertical movement is then advantageously achieved, for example, by means of screws 32 and. : by means of nuts 34 disposed in gear motors 33 or by other technical means known per se.

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Many other embodiments are possible. The data set can be deployed on the guide rails 7 with its own sleds. The device according to the invention can also be implemented completely independently, without a roller control system. Other functions such as paper head cutting, gluing, etc. can still be incorporated into the invention, thus even all operations at the roller grouping / measuring site can be carried out in a fully automatic manner, or at least without the operator having to come into contact with the rollers.

There is also a solution according to the invention in which the roll group is moved horizontally (H) and the data set is stationary or both, both the roll group and the data set are moved horizontally (H) with respect to each other. For the purposes of the invention, it is essential that the entire roll group be measured either whole or divided into parts.

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Claims (14)

1. A method of performing at least one set of operations on movable paper, pulp, cardboard or plastic rolls, substantially parallel to the axis of rotation, of at least one of a plurality of operations: the quality property of the rolls is read by the identifier of the rolls characterized in that the data unit / set of data to carry out quality control, measurement, marking, and / or reading operations and / or moving the roll group relative to the entire group of rollers. '; · *! Method according to Claim 1, characterized in that the data units are movable and the rollers 0 ·; in the direction of the scroll and the axis of rotation with respect to the rollers, so that the measuring, marking, and / or reading operations are! can be performed by the data set in the transfer area of the rolls or the group formed by them, especially in the scrolling or grouping area. A method according to claim 1, characterized in that the measuring, reading and / or marking operations are performed on the functions of the scroll control system; connected. t A method according to any one of the preceding claims, characterized in that the measuring, reading and / or marking 11116239 are performed after longitudinal cutting in the processing area of the roller groups prior to their displacement along the axis of rotation. Method according to Claim 1, 2 or 3, characterized in that the roller group is displaced to the measuring position by moving it in the direction of the axis of rotation via a conveyor. Method according to one of the preceding claims, characterized in that the described operations are performed in more than one measuring position in the scrolling direction. 7. Apparatus for performing measuring and / or reading and / or marking operations on paper, cellulose, paperboard or plastic rolls which are substantially parallel to the axis of rotation, collectively referred to as a data set comprising at least one of the following data sets: a quality control unit (26) for measuring at least one quality characteristic such as hardness, cutting quality and / or end straightness, - measuring unit (27) for measuring the position of the rolls, *; * \ - measuring unit (27) for measuring roll width and / or diameter '*. , O i - the marking unit (28) for marking the roll identifier, - the reading unit (29) for reading the roll identifier, j, j characterized in that the device includes means for moving the data unit / '.O unit and / or roll group relative to: ···: in the direction of the axis of rotation of the roller group so that the operation of the data set extends extends throughout the roll group. Device according to Claim 7, characterized in that the measuring, marking and / or reading operations are carried out by means of: · a data set in the transfer area of the rolls or the group formed by them, in particular in the scrolling and grouping area. 12 1 '1 6 2 7 9 Device according to Claim 8, characterized in that the data set is arranged in a structure above the rollers which enables the movements of the data set both in the scrolling direction and in the direction of the axis of rotation of the rolls. Device according to Claim 9, characterized in that the data unit is arranged in connection with a control unit (14) above the scrolling of the rollers. 10 1 1 6279 Device according to one of the preceding claims, characterized in that the data unit moves in the direction of the rollers under the guidance of the guides (7) with the structure attached to the moving carriages (5). Device according to one of the preceding claims, characterized in that the data unit moves in a direction substantially transverse to the rolling direction (H) from its ends under the control of a guide (23) attached to the carriages (5). Apparatus according to any one of the preceding claims, characterized by means for effecting movement of the data unit towards the rollers, either in a substantially vertical (V) direction or in a pivoting motion. Device according to any one of the preceding claims, characterized in that the data unit operates in a substantially complete processing area of the roll groups. -'3-1 1 6279