DE20000831U1 - Quality control facility - Google Patents

Abstract

The quality control system has a light table on which the document is placed and the angle of table (2) is adjusted by an actuator (3) coupled to a controller (4). The document details are shown on a display (7) and changes can be made using a keyboard (6).

Description

[Utility model application]

[Title of the invention] Quality control device

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[Description]

The invention relates to a device for quality control according to the preamble of claim 1.

[State of the art]

For quality control, printed sheets produced on printing machines are placed on tuning desks and examined visually and/or using measurement technology. Desks of this type have a flat or slightly curved surface for the printed sheet to rest on. The surface of the desk is preferably inclined towards the viewer, which makes it easier to visually inspect the printed sheet. The desk is also equipped with a lighting device that illuminates the sheet without glare or gloss.

A quality control device of the type mentioned above is known in particular from DE 44 13 239 A1. In order to be able to visually inspect sheets of different sizes and with different subject distributions in a convenient manner, the supports for the sheets are preferably designed to be height and/or inclination adjustable. Operators of different sizes can thus adjust the desk surface that holds the sheet to suit their visual habits. In addition, the lighting device connected to the desk can also be coupled with the height and/or inclination adjustment of the desk surface (support for the sheet).

With desk supports that are adjustable in height and/or inclination - possibly coupled with an adjustment of the lighting system - different operators have to adjust the height and/or inclination of the support each time to suit their size or viewing habits. This requires time-consuming handling, and an optimal setting once found for an operator can only be approximated later.

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shirt or not found at all. The same applies to the settings of the lighting device connected to the desk.

Control elements in the form of buttons and display instruments are often installed on control tables for visual and/or metrological quality control, which are also connected to the mechanism for adjusting the height and/or inclination of the support that holds the printed sheet. Here too, optimal accessibility of the control elements and glare-free viewing of the data displayed on a monitor can only be guaranteed if the setting is adjusted to the size and visual habits of the operator.

[Task of the invention]

The object of the present invention is therefore to expand a device for quality control according to the preamble of claim 1 in such a way that a simple and rapid adaptation to the visual and working methods of different operators is possible.

This object is achieved by the characterizing features of claim 1. Further developments of the invention emerge from the subclaims.

[Examples]

According to the invention, the support of the control panel that holds the printed copies is designed to be remotely adjustable by a motor, whereby the servomotor is connected to a control system to which stored setting values of different operators can be fed. An operator who intends to work on the tuning console designed according to the invention can, for example, use the control elements arranged on the tuning console to adjust the

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The operator can call up and execute the personal setting values that can be displayed on the monitor and saved in the control center computer. The base for the printed copies is moved to the individual and saved setting (height and/or inclination) using the remote adjustment. According to a preferred development of the invention, the operator has the option of additionally adjusting the position (height and/or inclination) of the desk surface that is automatically reached using assigned control elements. This fine tuning can be saved using further control actions after work on the tuning desk has been completed.

The data for the setting of the surface of the voting console that receives the printed copies, which is tailored to the individual operators, can be stored in a memory of the control console computer integrated in the voting console. The operator working at the voting console can then call up and execute the individual setting via the keyboard and monitor of the control console computer by entering a name abbreviation and a password. The setting data assigned to this person is then fed from the memory to the control of the assigned servo motor.

According to a preferred embodiment of the invention, it can be provided that the surface receiving the printed copies, a display device designed as a monitor and/or operating elements (keyboard) associated with the display device are adjustable. In a simple embodiment of this design variant, the display device and the associated operating elements (monitor, keyboard) are arranged directly in the remotely adjustable desk surface. According to a further development of this invention variant, the display device and/or the operating elements can be arranged next to the adjustable desk surface.

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arranged and coupled with the adjustment mechanism of the desk surface by means of a gear mechanism or arranged so that it can be moved by another servo motor. In this design variant, too, the height and/or inclination of the display and control elements towards the operator is individually adjusted according to his or her size and visual or working methods.

The setting values tailored to the operator are called up and implemented according to the stored values. The values can also be saved on a magnetic card. The respective operator is identified using the data saved on the magnetic card, and at the same time the setting data that can be assigned either to the magnetic card or to the values that can be taken from the magnetic card and saved on a mass storage device are implemented via the actuator(s).

According to a further preferred embodiment of the invention, after switching off the machine and a computer housed in the tuning console, via which the support for the printed copies is adjusted, the console surface and any other devices coupled to the console surface are moved to a basic position. In the case of a tuning console that is adjustable in height, this can be the lowest position. If the tuning console also has remotely adjustable display and operating elements, it is possible, particularly in the case of adjustable display elements, for these to be moved to a position in which contamination by dust or other depositable substances is at its lowest.

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According to a further preferred embodiment of the invention, a lighting device is coupled to the surface of the voting desk that receives the printed copies and can also be adjusted remotely. By adjusting the surface of the voting desk that receives the printed copies, the lighting coupled to the desk surface is raised and/or pivoted for optimal illumination. In this embodiment, too, a gear-based coupling of the lighting device to the top of the voting desk that receives the printed copies can be provided. The lighting device, which adjusts in accordance with the adjustment of the top of the voting desk that receives the printed copies, can also be adjusted in height and/or inclination by an associated servo motor.

Furthermore, an embodiment of the invention is explained with reference to the drawing.

The figure shows a tuning console designed according to the invention with a support for printed copies that is adjustable in height and/or inclination.

A tuning console 1 for visual and/or metrological quality control, which is assigned to a printing machine (not shown), has a support 2 for printed copies in the form of a plate on its top. Printed sheets can be placed on this support 2 and inspected by an operator. The tuning console 1 with the support 2 holding the printed copies is also assigned lighting devices which are not shown in the figure.

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The support 2 of the tuning console 1 is assigned an actuator 3, by means of which the support 2 can be adjusted in height and/or inclination relative to an operator. The actuator 3 is designed, for example, as an electric motor, which causes the corresponding adjustment of the support 2 via a threaded spindle. The joints or guides connecting the support 2 to the tuning console 1 are not shown in the figure.

The actuator 3 is in signal connection with a control 4, which in turn is assigned a memory 5. Setting values for various operators are stored in the memory 5, which can be called up and executed via the actuator 3 for an individual height and/or inclination adjustment of the support 2. The control 4 is also in signal connection with a display device 7 (monitor) and control elements 6 (keyboard). An operator who wants to inspect printed sheets on the support 2 of the tuning console 1 can thus call up the individual setting of the support 2 stored in the memory 5 via the control elements 6 by entering the name, an abbreviation of the name or a password and bring it into adjustment via the actuator 3.

The memory 5 can be a hard disk memory of the control center computer housed in the tuning console 1. Alternatively, it is also possible for the memory 5 to be designed as a magnetic card memory, which the corresponding operator has to insert into a reader when starting up the tuning console 1 or the printing machine. The setting values of the print run 2, which can be activated via the actuator 3, are then taken from this memory 5 in the manner already described above and implemented.

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[List of reference symbols]

1 tuning console

2nd Edition

3 Actuator

4 Control

5 Storage

6 Controls (keyboard)

7 Display device (monitor)

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Claims (4)

1. Device for quality control of printed copies, with a support for printed copies attached to the top of a tuning console and adjustable in height and/or inclination, characterized in that an actuator ( 3 ) with an upstream control ( 4 ) is assigned to the support ( 2 ), wherein setting values of a memory ( 5 ) changing the height and/or inclination of the support ( 2 ) can be fed to the control ( 4 ) of the actuator ( 3 ). 2. Device according to claim 1, characterized in that the setting values changing the height and/or inclination of the support ( 2 ) of the tuning console ( 1 ) are stored in a memory ( 5 ) arranged in a computer of the tuning console ( 1 ). 3. Device according to claim 1, characterized in that the memory ( 5 ) can be temporarily connected to the control ( 4 ) of the actuator ( 3 ). 4. Device according to one of the preceding claims, characterized in that a display device ( 7 ) and/or operating elements ( 6 ) are assigned to the control ( 4 ) for selecting and activating the setting values stored in the memory ( 5 ).