Winding machine, system and method

Abstract

A winding machine with a winding package receptacle (2, 3) for holding and supporting a material winding (27, 35), with a device (4, 42) for measuring the diameter (d) of the material winding (27, 35), wherein the device (4, 42) for measuring the diameter (d) of the material winding (27, 35) has a scanner (6) which can be advanced along an axis (5).

Description

Technical Field

[0001] This invention relates to a winding machine, particularly a winding machine for printing presses. Furthermore, this invention relates to a printing system incorporating such a winding machine and a method for manufacturing windable products. Background Technology

[0002] For example, winding machines used in printing presses are particularly used for rolling up (encircling) printed matter produced by means of the printing press, or for unwinding (unwinding) the web of material supplied to the printing press as material coils. For this purpose, the winding machine has a coil receiving section for holding and supporting the material coils. The winding machine also has a device for measuring the diameter of the material coils.

[0003] Known devices used in winding machines for measuring the diameter of material coils include distance sensors or spacing sensors that perform optical measurements, such as laser spacing sensors. However, laser spacing sensors are not suitable for opaque or high-gloss materials. Therefore, depending on the material characteristics of the coil, manual user intervention is required to obtain the initial diameter, or for synchronization or coil changes. Summary of the Invention

[0004] Against this backdrop, the technical problem of the present invention is to provide a winding machine capable of reliably achieving diameter identification, particularly for opaque or high-gloss materials. Furthermore, a system incorporating such a winding machine and a method for manufacturing windable products should be provided.

[0005] The aforementioned technical problems are solved by the features of the independent claims. Other embodiments of the invention are derived from the dependent claims and the description below.

[0006] According to a first aspect, the present invention relates to a winding machine having a winding receiver for holding and supporting a material winding and a means for measuring the diameter of the material winding. The winding machine is distinguished by the fact that the means for measuring the diameter of the material winding has a mobile scanner.

[0007] While the fixed distance sensor or point sensor described at the beginning is only suitable for probing a single point on the outer diameter of the material roll and determining the corresponding distance from which the diameter of the material roll can be deduced, a specific device with a mobile scanner is suitable for acquiring multiple measurement points of the circumference or outer contour of the material roll in general, so as to achieve a significantly more reliable and accurate determination of the circumference of the material roll.

[0008] When it is mentioned that the material coil is supported at the winding machine, it means that the material coil is supported at the frame of the winding machine in a manner that allows it to rotate about an axis of rotation. In particular, if the winding machine is a tilting winding machine, the material coil can be held at the oscillating wheel.

[0009] In particular, the material coil can be automatically inserted into the relevant support of the winding machine, and can also be automatically removed from the winding machine. Corresponding systems for automatic coil replacement are known.

[0010] In addition to determining the diameter of the material coil, the device for measuring the diameter of the material coil can also be configured to determine the diameter of the sleeve or winding shaft of the material coil.

[0011] The winding machine can have two coil receiving sections, so that two material coils can be held and supported at the winding machine simultaneously. In particular, if the winding machine is a tilting winding machine, the material coils can be held at the oscillating wheel.

[0012] The corresponding coil receiving section can be respectively configured to receive material coils with a width greater than 50cm, especially to receive material coils with a width greater than 100cm, and even more particularly to receive material coils with a width less than or equal to 250cm.

[0013] The corresponding coil receiving section can be configured to accommodate material coils weighing more than 100 kg.

[0014] The material reel may have a sleeve or winding shaft configured to receive the material web. The sleeve or winding shaft of the material reel particularly has end sections facing away from each other, through which the material reel is placed in the reel receiving portion. Such sleeves or winding shafts may be made of metal.

[0015] The material web of the material reel can be a multi-layered material web or a single-layered material web. The material web of the material reel can have one or more layers made of paper and / or plastic film and / or metal film.

[0016] The thickness of the material sheet can be greater than or equal to 5 μm or 10 μm, especially greater than or equal to 25 μm, and even more especially less than or equal to 1 mm.

[0017] The scanner can travel along an axis. The axis can be a controlled axis, especially a numerically controlled axis.

[0018] The scanner's travel path can be defined as a straight line, thus allowing the scanner to travel in a purely linear manner. According to alternative designs, the scanner's travel path can be defined as an arc or a wavy profile. It is evident that, for success according to the invention, all that is required is that the scanner can occupy different defined positions or travel between different defined positions, where the type of travel path is secondary. The scanner can be held oscillatingly and can oscillate about an axis or along an oscillation path.

[0019] The axis used to move the scanner can be a linear axis, such as a ball screw pair, toothed belt shaft, rack shaft, pneumatic linear axis, etc.

[0020] The scanner can be held, in particular, at a movable slide, especially at a movable slide of the shaft, by means of a retainer. The retainer may have, in particular, one or more plate members, which may be releasably connected to the movable slide, for example, by a swivel joint.

[0021] The shaft, especially a linear shaft, can be fixed to a frame of the winding machine. In particular, the shaft can be releasably connected to the frame of the winding machine, for example, by screwing. The shaft can be fixed to the frame of the winding machine by means of a shaft retainer. The shaft retainer may, for example, be a sheet material, especially a corner-shaped sheet material.

[0022] In the top view, the axes, especially the linear axes, can be arranged perpendicular to the rotation axis of the material reel. This allows the scanner to travel along the entire thickness or diameter of the material reel. The length of the linear axis can be configured to be greater than the maximum permissible thickness of the material reel.

[0023] According to one design of the winding machine, when viewed vertically, the shaft, especially the linear shaft, is arranged above the material coil together with the mobile scanner, especially when viewed and measured from the workshop floor where the winding machine is erected, and is arranged more than 2m above the workshop floor.

[0024] The shaft may have a device for determining the scanner's axial position along the shaft, such as a rotary encoder or displacement encoder. Some shafts have a displacement measurement system integrated into the shaft structure. However, it is also possible to configure the shaft for use in conjunction with a separate device for determining the shaft's position.

[0025] For example, the device for determining the axial position of the scanner can be configured to have a fixed rack and a pinion that travels with the scanner, wherein the pinion engages with the rack and wherein the pinion is associated with a rotary encoder to determine the longitudinal position of the scanner along the rack according to the measured rotation of the pinion.

[0026] For example, the shaft can be configured as a pneumatically travelable linear shaft with a corresponding travelable slide, at which the scanner is held. Similarly, the aforementioned pinion can be combined with a corresponding rotary encoder and held at the slide to acquire the scanner's position along the linear shaft according to the number of rotations of the pinion engaging with the associated rack. Needless to say, the rack extends parallel to the longitudinal direction of the linear shaft or the linear travel displacement.

[0027] Preferably, the axis used to propel the scanner has a toothed belt or a toothed belt shaft. The toothed belt shaft particularly facilitates an integrated system for position determination.

[0028] It can be configured so that the scanner can travel along a road segment with an axis greater than or equal to 100cm and less than or equal to 400cm.

[0029] The scanner can be a laser scanner, particularly one that covers a scanning angle of 180° or greater, and especially one that covers a scanning angle of 270° or greater. Alternatively or additionally, the laser scanner can be configured to have a range of action of greater than 2m and less than 5m.

[0030] A device for measuring the diameter of material coils can be configured for area protection, wherein a scanner is configured to separate, in a protected position, a work area accessible to the operator during machine operation from a machine area inaccessible to the operator during machine operation, wherein the scanner's personnel identification can be coupled to an emergency stop function. Therefore, the scanner, together with the shaft, constructs a dynamically positionable photoelectric barrier (Lichtschranke, sometimes called a beam-blocking sensor), which can be positioned to protect different areas depending on the winding machine's operating mode.

[0031] In particular, it can be configured so that area protection is carried out solely by a mobile scanner, thus eliminating the need for fixed or positionally mounted photoelectric barriers.

[0032] According to another aspect, the present invention relates to a system for manufacturing machines for windable products, such as printing presses for manufacturing printed products, extrusion equipment for manufacturing film products, hose machines for manufacturing hose products, etc., including a winding machine for winding or unwinding material coils, wherein the winding machine is constructed according to the invention. The system can be configured such that it has not only a winding machine for winding material coils but also a winding machine for unwinding material coils, both of which can be designed according to the invention.

[0033] According to another aspect, the present invention relates to a method comprising the steps of: manufacturing a rollable product by means of a system according to the invention, wherein the diameter of a roll of material is measured by means of a mobile scanner, and wherein the scanner is moved by means of a shaft during the measurement.

[0034] According to one design of the method, if the scanner is also used for area protection, it can be configured to monitor the machine area, wherein if a person is detected in the machine area, the scanner triggers the machine to stop by means of an emergency stop function.

[0035] The position of the mobile scanner can be configured to be adjusted based on the diameter of the material reel. This allows for the provision of the largest possible working area. Specifically, the protected area defined by the scanner position can be configured to have a fixed distance from the dynamically changing reel diameter during machine operation, and thus the scanner position is also dynamically adjusted.

[0036] One design of the method can be configured to measure the diameter of the material roll by means of a scanner detecting opposite points on two diameters of the material roll.

[0037] Alternatively or supplementarily, the diameter of the material roll can be measured by means of a scanner probing a point on the circumferential side of the material roll, wherein the diameter is calculated according to a known center point of the material roll, wherein the center point is measured in particular by means of a reference stroke of the scanner.

[0038] Previously, regarding specific winding machines, a distinction had been made between the machine area and the work area, specifically mentioning that personnel "enter" these areas. Here, the term "enter" includes not only walking on the relevant area, but also any intervention by personnel within that area and any reaching or grabbing. In other words, it is considered identifiable if merely a person's hand, arm, head, or foot crosses or intrudes upon the boundary of the relevant area. Attached Figure Description

[0039] The invention will now be described in more detail with reference to the accompanying drawings illustrating the embodiments. Schematic representations are as follows: Figure 1 A perspective view of the winding machine according to the invention is shown; Figure 2 Showing from Figure 1 The linear shaft and scanner of the winding machine; Figure 3 Showing from Figure 2 The linear axis and the side view of the scanner; Figure 4 The side view shows the cross section from Figure 1 A winding machine, wherein the scanner is located in the first end position; Figure 5 The side view shows the cross section from Figure 1 A winding machine, wherein the scanner is located in the first measuring position; Figure 6 The side view shows the cross section from Figure 1 The winding machine, in which the scanner is located in the second measuring position; Figure 7 The side view shows the cross section from Figure 1 The winding machine, in which the scanner is located in the second position; Figure 8 A printing system according to the present invention is shown; Figure 9 A flowchart of the method according to the present invention is shown. Figure 10 It shows the use of from Figure 1 The other linear shaft of the flip-type winding machine; Figure 11 Showing with according to Figure 10 A flip-type winding machine with a linear shaft according to the present invention. Detailed Implementation

[0040] Figure 1 A winding machine 1 according to the present invention is shown, having a first coil receiving portion 2 and a second coil receiving portion 3. The winding machine 1 is a flip-type winding machine. For the sake of simplicity in the following description, a Cartesian coordinate system x, y, z is introduced.

[0041] The first coil receiving portion 2 and the second coil receiving portion 3 are respectively used to hold and support the respective associated material coils, wherein, in the current illustration, the material coils are not respectively arranged in the relevant coil receiving portions 2 and 3.

[0042] The coil receiving portions 2 and 3 are constructed at the oscillating wheel 30, which can oscillate around the axis 32 by means of the driver 31 for coil replacement. The oscillating wheel 30 and the driver 31 are provided with external teeth and are in tooth engagement with each other.

[0043] The winding machine 1 has a device 4 for measuring the diameter of the material coil.

[0044] Device 4 has a scanner 6 that can travel along axis 5.

[0045] Currently, axis 5 is a pneumatically linear axis 5. The following text follows... Figure 2 and Figure 3 The structure of the device 4 for measuring the diameter of the material coil is described in more detail. The device 4 for measuring the diameter of the material coil... Figure 2 The device 4 for measuring the diameter of the material coil is shown separately and in an enlarged perspective view. Figure 3 It is shown separately in a side view.

[0046] The pneumatic linear shaft 5 is associated with a device 7 for determining the axis position of the scanner 6. Figure 3 ).

[0047] The device 7 for determining the axis position of the scanner 6 has a rotary encoder 8, a pinion 9, and a rack 10.

[0048] The rack 10 and the linear shaft 5 are fixedly connected to the frame 11 of the winding machine 1 and are oriented parallel to each other when viewed along its longitudinal direction.

[0049] The pinion 9 engages with the rack 10 and is held at the shaft 12 of the rotary encoder 8. The rotary encoder 8 and the scanner 6 are jointly secured to the travelable slide 13 of the pneumatic linear shaft 5 by means of a retainer 20.

[0050] If the movable slide 13 of the pneumatic linear shaft 5 now travels along the longitudinal extension L of the linear shaft 5, that is, parallel to the x-axis, its linear translational motion is converted into rotation of the shaft 12 of the rotary encoder 8 through the rolling tooth engagement between the pinion 9 and the rack 10. Due to the known gear geometry, the longitudinal position of the scanner 6 in the x-direction can be determined according to the measured rotation angle of the rotary encoder 8.

[0051] The pneumatic linear shaft 5 has two mutually spaced end positions 14 and 15. End positions 14 and 15 can also be referred to as end points. Each end position 14 and 15 is associated with a device 16 and 17 for end position lookup.

[0052] The device 16 for end position query has a position-fixed component 18 in the form of a switch flag 18. The device 16 for end position query also has a component 19 in the form of an electronic trigger 19 that can travel by means of a shaft 5. The trigger 19 is fixed at a retainer 20, where the rotary encoder 8 and the scanner 6 are also fixed.

[0053] The device 17 for end position query has a component 21 that is fixed in position in the form of a switch flag 21. The device 17 for end position query also has a component 22 that is movable by means of a shaft 5 in the form of an electronic initiator 22. The initiator 22 is also fixed at the retainer 20.

[0054] With regard to the travelable slide 13 reaching one of the end positions 14 and 15, the switch flags 18 and 21 associated with the relevant end position 14 and 15 are respectively located directly in front of the triggers 19 and 22 associated with the relevant end position 14 and 15 on the end side, which triggers detect the associated switch flags 18 and 21 and indicate that the relevant end position 14 and 15 has been reached.

[0055] The switch flag 21 is fixed to the shaft retainer 23, which also carries the shaft 5 and the rack 10. The shaft retainer 23 is fixed to the frame 11.

[0056] According to an alternative embodiment, the devices 16 and 17 for end position lookup can be omitted and replaced by using a reliable rotary encoder.

[0057] In addition, a cable drag chain 24 or energy chain 24 is provided, which is secured to the frame 11 by an additional retainer 25. One end of the energy chain 24 is connected to the retainer 20, thereby guiding it in the longitudinal direction L. The energy chain 24 is used in a known manner to guide the circuitry that is necessary for and connected to the operation of the scanner 6, rotary encoder 8, and initiators 19, 22.

[0058] The retainers 20, 23, and 25 may have shaped sheet metal and / or angle metal.

[0059] As from Figure 1 As is known, scanner 6 covers a scanning plane S that extends substantially parallel to the yz plane, schematically represented by a dashed line emanating from scanner 6. Scanning plane S may also be referred to as the protected area.

[0060] Scanner 6 can travel more than 100 cm along the road segment parallel to the x-direction using axis 5. Therefore, Figure 2 The longitudinal extension length L shown is greater than 100cm.

[0061] Scanner 6 is a laser scanner 6, which is suitable for covering a scanning angle greater than 90°. Laser scanner 6 has an operating range greater than 2m and less than 5m.

[0062] Figure 4 Linear axis 5 is shown, with scanner 6 located at end position 15, which is queried via device 17 for position query by means of switch flag 21 and trigger 22. Figure 4 Next to the right side of the presented scanning plane S, there is a work area or operation area 26 where personnel stay.

[0063] Figure 4 The material coil 27 housed in the coil receiving section 2 is shown. The material coil 27 has a sleeve 28, which may also be referred to as a winding shaft, on which the material web 29 is wound.

[0064] In order to measure the diameter d of the material coil 27, the scanner 6 travels at a constant speed in the direction of the material coil 27 by means of the linear axis 5, wherein the position of the scanner 6 in the longitudinal direction or the x-direction is measured by means of the rotary encoder 8.

[0065] Scanner 6 in Figure 5 The outer contour of the material coil 27 was identified in the position shown in the image, and the process continued until... Figure 6In the position presented, the scanner 6 also identifies the outer contour of the material coil 27. From the position detected by the rotary encoder 8 in the longitudinal or x-direction, the diameter d can be calculated. Therefore, the diameter d of the material coil 27 is measured by detecting two opposite points on the diameter of the material coil 27 using the mobile scanner 6.

[0066] Alternatively, if the location of the center point M of the material roll is known, it can be determined by... Figure 5 The diameter d has already been calculated using the probe material coil 27. The center point can be measured, for example, by means of the reference stroke of the scanner 6. Therefore, the diameter can be detected according to a unique measurement position.

[0067] Figure 7 The scanner 6 displays the end position 14, which is queried via the device 16 for end position query by means of the switch flag 18 and the trigger 19.

[0068] The device 4 for measuring the diameter d of the material coil 27 can be additionally configured for area protection so as to separate the work area 26, which is accessible to the operator during machine operation, from the machine area 38, which is not accessible to the operator during machine operation.

[0069] Scanner 6 can be configured for personnel identification and coupled with an emergency stop function. Depending on the operating status of the winding machine 1, the working area 26 and the machine area 38 can be different areas, such as... Figure 7 and Figure 4 As indicated in the document.

[0070] Figure 8 A printing system 34 is shown schematically and in a highly simplified manner, comprising a printing press 33 for producing printed products and a winding machine 1 for winding or unwinding material coils 27. Since the winding machine 1 relates to a flip-type winding machine, another material coil 35 is shown exemplary, which is held and supported in the coil receiving portion 3 of the winding machine 1 by its sleeve 36, wherein the material width 37 of the material coil 35 is used by the printing press 33.

[0071] Therefore, a method can be provided with the following steps: (A) manufacturing a printed product by means of a printing system 34; (B) wherein the diameter d of the material roll 27 is measured by means of a mobile scanner 6, and wherein during the measurement, the scanner 6 is moved by means of a shaft 5; and (C) wherein the scanner 6 is used to monitor the machine area 38, and wherein if a person is detected in the machine area 38, the scanner 6 triggers the machine to stop by means of an emergency stop function.

[0072] Figure 10An alternative device 42 for measuring diameter is shown. To avoid repetition, only the differences from the foregoing embodiments are discussed, wherein the same features are associated with the same reference numerals.

[0073] The device 42 for measuring diameter is fundamentally different from the device 4 for measuring diameter in that the toothed belt shaft 41 is now used as the linear shaft instead of the pneumatic linear shaft 5.

[0074] The toothed belt shaft 41 has a toothed belt 40, which is driven by a motor 38. The position of the slide 13 (which carries the scanner 6) held at the toothed belt 40 is detected by a rotary encoder 39.

[0075] Figure 11 The device 42 is shown exemplary and schematically in its assembled state at the flip-type winding machine 1.

[0076] Reference number 1 Winding machine 2. Coil receiving section 3. Coil receiving section 4. Device for measuring diameter and for area protection 5 Linear Axis / Pneumatic Linear Axis 6. Scanner / Laser Scanner 7. Device for determining shaft position 8 Rotary Encoder 9 small gears 10 racks 11 racks 12-axis 13 Slide 14 End position 15. End position 16 Devices for location lookup 17. Devices for location lookup 18 switch flags 19 Initiators 20 Retaining parts 21 Switch Flags 22 Initiators 23. Retainer / Shaft retainer 24 Cable drag chain / energy chain 25 Retaining parts 26 Operating Area / Work Area 27 Material roll 28 Sleeves / Winding Shafts 29 Material width 30 Swing Wheel 31 drives 32-axis 33 Printing press 34 Printing System 35 Material rolls 36 Sleeve / Winding Shaft 37 Material width S Scan plane D diameter x-axis y-axis z-axis (A) Method and Steps (B) Method and Steps (C) Method and Steps 38 motors 39 Rotary Encoder 40 toothed belt 41 Linear Shaft / Toothed Belt Shaft 42. A device for measuring diameter and for area protection.

Claims

1. A winding machine, - A coil receiving portion (2, 3) with a coil (27, 35) for holding and supporting the material coil (27, 35). - Equipped with devices (4, 42) for measuring the diameter (d) of the material coils (27, 35), Its features are, - The device (4, 42) for measuring the diameter (d) of the material coil (27, 35) has a mobile scanner (6).

2. The winding machine according to claim 1, Its features are, The scanner can travel along an axis (5), and in particular, the axis (5) is a linear axis (5), such as a ball screw pair, a toothed belt shaft, a rack shaft, a pneumatic linear axis (5), etc.

3. The winding machine according to claim 2, Its features are, In the top view, the linear axis (5) is arranged perpendicular to the rotation axis of the material coil (27, 35).

4. The winding machine according to any one of claims 2 or 3, Its features are, The shaft (5) has a device (7) for determining the axial position of the scanner (6) along the shaft (5), such as a rotary encoder (8), a displacement encoder, etc.

5. The winding machine according to claims 3 and 4, Its features are, The device (7) for determining the axial position of the scanner (6) has a rack (10) with a fixed position and a pinion (9) that can travel with the scanner (6), wherein the pinion (9) engages with the rack (10) and wherein the pinion (9) is associated with a rotary encoder (8) to determine the longitudinal position of the scanner (6) along the rack (10) according to the measured rotation of the pinion (9).

6. The winding machine according to any one of claims 2 to 5, Its features are, The shaft (5) has two end positions (14, 15) spaced apart from each other, and the scanner (6) can travel between the two end positions, wherein each end position (14, 15) is associated with a device (16, 17) for querying the end position, and wherein each device (16, 17) for querying the end position has, in particular, a fixed component (18, 21) and a component (19, 22) that can travel by means of the shaft (5).

7. The winding machine according to any one of claims 2-5, Its features are, The scanner (6) can travel along a road segment (L) of 100cm or more and 400cm or less by means of the shaft (5).

8. The winding machine according to any one of the preceding claims, Its features are, - The scanner (6) is a laser scanner (6), - The laser scanner (6) wherein the laser scanner (6) covers a scanning angle greater than or equal to 180°, and more particularly covers a scanning angle greater than or equal to 270°, and / or - The laser scanner (6) described therein has a range of action greater than 2m and less than 5m.

9. The winding machine according to any one of the preceding claims, Its features are, - The device (4) for measuring the diameter of the material coils (27, 35) is configured for area protection. - The scanner (6) is configured to separate, in a secure location, the work area (26) that is accessible to the operator during machine operation from the machine area (38) that is not accessible to the operator during machine operation. - The personnel identification of the scanner (6) can be coupled with the emergency stop function.

10. A system, - Includes machines for manufacturing rollable products, such as printing presses for manufacturing printed products, extrusion equipment for manufacturing film products, and hose machines for manufacturing hose products. - A winding machine (1) equipped with a mechanism for winding or unwinding material coils (27, 35), - The winding machine (1) therein is designed according to any one of the preceding claims.

11. A method, with method steps: - To manufacture a rollable product by means of the system (34) according to claim 10; - Wherein the diameter (d) of the material coil (27, 35) is measured by means of the mobile scanner (6), and - During the measurement, the scanner (6) is moved.

12. The method according to claims 11 and 9, Its features are, - The scanner (6) is used to monitor the machine area (38), - Wherein if a person is detected in the machine area (38), the scanner (6) triggers the machine to stop by means of an emergency stop function.

13. The method according to claim 12, Its features are, The position of the mobile scanner (6) depends on the diameter (d) adjustment.

14. The method according to any one of claims 11-13, Its features are, - The diameter of the material coil (27, 35) is measured by means of the scanner at two opposite points on the diameter of the material coil (27, 35); and / or The diameter of the material coils (27, 35) is measured by means of the scanner (6) probing points on the circumferential side of the material coils (27, 35), wherein the diameter is calculated according to the known center point of the material coils (27, 35), wherein the center point is measured in particular by means of the reference stroke of the scanner (6).

Images