Patent Application
20160346950
The instant application claims the priority date of May 29, 2015, the filing date of the German patent application, DE 10 2015 108 506.2.
The present invention relates to a cutting tool holder for holding and driving a cutting tool, including at least one actuator for adjusting at least one operating state of the cutting tool holder.
With longitudinal cutting machines, typically a plurality of blade holders are arranged adjacent one another. Each blade hold includes an actuator, which can adjust the cutting tool, formed in particular as a circular knife, in the vertical direction. In addition, an actuator can be provided, which adjusts and presses the circular knife laterally. In order to determine an accurate position of the circular knife as well as the respective pressing force, corresponding sensors are provided. Further, further sensors can be provided, which monitor further parameters, such as, for example, the temperature of the circular knife mounting. Each individual actuator and each individual sensor of each blade holder is connected via its own cable with a central control unit, in particular with a control that is programmable from memory. In order to reduce the expense associated with the mounting of longitudinal cutting machines and during exchange or repositioning of the blade holders, it is already know to use BUS-systems, by means of which the data of the sensors and the control signals for the actuators are determined. A disadvantage of this type of design is that the operating states and the parameters of the cutting tool holder are accessible only from the superordinate control unit that is programmable from memory. In particular, the parameters that are relevant for monitoring of the cutting process are only centrally monitored. Furthermore, changes of the parameters and the operating states to be assumed in a following step can be adjusted centrally at the superordinate control unit only during an idle state. The fastest possible time for the change of the operating state, in addition, is predetermined by the running times of the BUS system, since each step of the operating state change of each blade holder is controlled centrally by the memory-programmable control unit. A mobile access for an operator, which is located on the longitudinal cutting machine, is not provided.
An object of the present invention is therefore to at least partially solve the above-noted problems associated with the state of the art and in particular, to provide a cutting tool holder and a method for operating a cutting machine, with which the operation of a cutting machine is simplified and with which a precise regulation of the actuator is possible.
These objects are solved, in particular, by a cutting tool holder, in particular a blade holder, with the above-noted features, whereby a control module that is connected to an actuator is mounted on the cutting tool holder. The control module directly and independently operates the actuator and information regarding the operating state can be stored on the control module, whereby on the control module, a TCP- and/or UDP-based server, in particular, a webserver, is provided, so that information from a web-browser compatible end device about an operating state that is to be assumed and information about the actual operation state can be transmitted to the web-browser compatible end device.
Preferably, the cutting tool holder is a blade holder and the cutting device is a circular blade or knife, whereby the circular blade or knife can be adjusted, in particular, by the actuator in the vertical direction and can be adjusted and pressed laterally by means of a further actuator, if necessary.
The control module on the cutting tool holder, in particular, is a CPU-supported computer and is not provided only for control, in particular, of all actuators of the cutting tool holder, but in addition to the operating states, in particular, also stores all further parameters of the cutting tool holder. Under the term “operating states”, in particular, parameters are to be understood which can be changed directly by one or more actuators. In this connection, for example, the position of the cutting tool is included. Under the term “parameter”, all such parameters are to be understood which can be affected generally only indirectly by means of the actuators. In this connection, for example, the storage temperature of the cutting tool and the diameter of a circular knife or blade in delivery condition and in actual condition are included.
The control module therefore is configured and equipped in order to autonomously bring the actuator from one operating state into another operating state, without having to resort to signals of a superordinate control unit during this change of the operating state. The control module preferably is directly connected with the actuator, so that the actuator changes the operating state of the cutting tool holder based on a signal from the control module. In this connection, the control module can directly provide the operating state to be adopted by means of a corresponding control signal or regulate by means of falling back on information from corresponding sensors of the actuator, in particular sensors connected directly with the control module, until achievement of the operating state to be assume. The change of the operating state can occur based on the individual actuation of the actuator by the control module in real time.
Furthermore, a TCP- and/or UDP-based server are provided on the control module, so that communication with the control module is enabled, in particular, by means of TCP/IP. By means of the TCP- and/or UDP-based server (referred to subsequently as “server”), it is possible that the basis of a standardized protocol can be communicated to the control module. The information stored on the control module, as far as this is released, can be released with web-browser compatible end devices and if necessary, also can be changed. In addition, information about the server with a web-browser compatible end device, in particular, about parameters of the cutting tool holder, can be stored on the control module. In particular, the operating state to be assumed can be stored by means of the server on the control module, so that preferably, after receipt of a release signal, the control module can autonomously bring about the operating state to be assumed by affecting the actuator.
Thus, on the one hand, the operation is simplified via, in particular mobile, web-browser compatible end devices and on the other hand, the precision of the change of the operating state is increased, since the control module, if necessary, after receipt of a release signal independently changes the operating state of the cutting tool holder via the actuator. The speed of the operating state change is thereby provided by means of the timed sequence of the control module to the cutting tool holder and not by means of the cycling times of a BUS-system or by means of the cycling times of a superordinate control unit. Thus, the adjustment times can be shortened, although the transmission rate of the Ethernet standard for transmission of information to the service, comparted with the transmission rates of a memory-programmable control unit, are longer. In particular, therefore, also no BUS nodes, which slow down the control, are required. With the present invention, it is possible, in particular, to retrieve operating states of the cutting tool holder each time via a mobile end device, whereby also operating states of the tool holder to be adopted can be predetermined by the mobile end device. Thus, operating states, which are to be assumed in a subsequent processing step, already can be predetermined during the actual operation. For example, with an intended re-positioning during the preceding processing, the later position to be assumed can be provided, which then is initiated directly during the idle state of the cutting tool. Thus, the operation of the cutting tool holder is markedly simplified.
In addition, at least one further parameter of the cutting tool holder can be stored on the control module, whereby at least the further parameter stored on the control module is retrievable and/or changeable by a superordinate control unit as well as by a mobile end device that does not directly influence the operation of the cutting tool holder.
The parameters stored on the control module, therefore, likewise are not only retrievable and in particular changeable by the superordinate control unit, but also by the mobile end device. The actual operating states of the cutting tool holder are directly changeable only by means of the control module, in particular first after release by means of the superordinate control unit. This means, in particular, that a parameter of the cutting tool holder can be detected by the mobile end device and this corresponding parameter then can be stored on the control module. The stored parameter is then, in turn, retrievable by the superordinate control unit so that this, if necessary, in dependence on the retrieved parameter, can permit a change of the operating state by means of the control module to a provided time.
The superordinate control unit, in particular, is a memory-programmable control unit, a CPU support computer and/or a similar control device. Preferably, the superordinate control unit is made up of a memory-programmable control unit and a Linux-based computer together for communication with the control modules.
Thus, it is now possible to retrieve stored parameters of the cutting tool holder via a mobile end device each time. In addition, it is possible to determine a change of the parameter with the mobile end device and to store it from the mobile end device onto the corresponding control module. Furthermore, also parameters from a cutting tool holder used in a subsequent processing step can be detected already during operation. Thus, the operation of the cutting tool holder is still further simplified.
In order to minimize the amount of cabling work involved of a cutting tool holder during its installation and exchange, it can be provided that the control module contains signals, in particular from the superordinate control unit as well as the energy from operation of at least the actuator via a single cable. This type of individual cable can be a cable with a RJ45 plug on its end, for example. The control module, in particular, is equipped such that it can make available different potentials, which supplies the actuator, at least one sensor and/or the control module with energy. The control module, then, is equipped, in particular, such that the voltages on the individual wires of the cable are converted into different constant potentials as supply voltages for the components of the cutting tool holder.
In order to eliminate the cabling of a sensor to the superordinate control unit, it can be provided that a sensor that determines a parameter and/or operating state of the cutting tool is connected directly with the control module. Thus, a cabling of the sensor only to the control module mounted on the cutting tool holder must take place.
It also can be provided that a parameter of the cutting tool holder or the cutting tool is detectable by means of a sensor that is not directly connected with the control module, in particular, which is integrated in the mobile end device, and in particular, is transmissible from the mobile end device to the control module and is storable on the control module. With such a configuration, the sensor can communicate wirelessly via suitable means with the control module to the cutting tool holder. In particular, in this connection, a camera of a mobile end device can be used to detect a parameter of the cutting tool holder and to store it on the control module. For example, the original diameter of a round knife or blade or the actual diameter of round knife or blade can be determined and are transmitted to the control module of the corresponding cutting tool holder. This has the advantage that, for example, with re-installation of a knife or blade, this can be very simply detected by means of the mobile end device and its parameters can be transmitted in a simple manner to the control module mounted on the cutting tool holder. The parameters associated with the cutting tool holder therefore are stored locally on the control module of the cutting tool holder.
So that a mobile end device can identify the cutting tool holder for which it must later determine a parameter on this cutting tool's control module, a one- or two-dimensional, machine-readable code can be formed on the outside or exterior of the cutting tool holder, which identifies the cutting tool holder, in particular for the mobile end device. The one-dimensional machine-readable code is, in particular, a barcode and the two-dimensional machine-readable code is, in particular, a QR code.
In addition, it can be provided that a one- or two-dimensional, machine-readable code is formed on the cutting tool, which provides an initial state of the cutting tool, so that the initial state, in particular, is detectable for the mobile end device, whereby the initial state can be transmitted to the control module and stored on the control module. The “initial state” of the cutting tool refers to, in particular, its diameter, its width or its further properties. Thus, the initial state of the cutting tool can be detected very simply and can be transmitted to the control module of the cutting tool holder, on which the cutting tool is mounted.
In order to permit a friction-free operation of a cutting machine, it can be provided that the control module is configured so that a change of an operating state takes place only after prior release via the superordinate control unit.
The above-noted objects are also solved by a cutting machine with a plurality of cutting tool holders according to the present invention, which include a central, superordinate control unit, in particular, memory-programmable control, which controls or regulates the plurality of cutting tool holders.
The above-noted objects are also solved by a method for operating a cutting machine with a plurality of cutting tool holders, including at least the following steps:
Thus, the result is that the control module can be put into execution independently by the predetermined functions of the operating state to be assumed, without having to take into consideration the cycling times of the superordinate control unit. The change of the operating state takes place based on the independent actuation of the actuator through the control module in real time. For example, the operating state to be assumed can be a position of the knife or blade, which is executed by the control module in dependence on the signal from the locator connected to the control module by means of independent control of a motor, which adjusts the blade or knife and is formed as an actuator.
In particular, it can be provided that in step a), additionally at least one parameter of the tool holder is detected and stored on the control module of the tool holder and the stored parameter and the operating state is retrieved and/or changed by means of a superordinate control unit or by means of a mobile end device that does not directly effect the operation of the cutting tool holder, whereby in particular in a step 3), a cutting process is performed with a plurality of the cutting tool mounting practice under the regime of the superordinate control unit in dependence on the retrieved parameter, whereby in particular, the operating states of the individual cutting tool holders are adjusted depending on the retrieved, changed parameters through regulation by the respective control module.
Since the parameter(s) can be detected in a simple manner by a mobile end device, the operation of a cutting device is further simplified, whereby the operating expense is reduced.
So that a sensor that is not connected with the cutting tool holder can detect and transmit a parameter of the cutting tool holder, it is provided that in step a), a sensor connected indirectly with the control module of a cutting tool holder detects at least one parameter and/or operating state of the cutting tool, which is transmitted by means of the mobile end device to the server formed on the control module of the cutting tool holder and is stored on the control module.
In this connection, the cutting tool holder can be identified next by means of the mobile end device via a one- or two-dimensional machine-readable code formed on the cutting tool holder. Thus, the user can select in a simple manner the cutting tool holder for which it will next detect a parameter. If necessary, the association of the cutting tool holder also can take place after detection of the parameter.
It also can be provided that an initial state of a cutting tool of the cutting tool holder is determined by means of the mobile end device via a one- or two-dimensional, machine-readable code formed on the cutting tool and by means of the mobile end device, is transmitted to the control module of the cutting tool holder and is stored on the control module.
In particular, step d) does not take place without release by means of the superordinate control unit.
The details and features disclosed with reference to the inventive device can be transferred to the corresponding points of the inventive method, and vise versa.
The invention as well as the technical background is explained in an exemplary manner next with reference to the figures, whereby it is noted that the figures show a preferred embodiment of the invention, without limiting the invention thereto. The drawings show:
In
The blade holder 1, which is attached to a traverse via a suitable attachment means (not specifically shown) is connected via a cable 8 and a network 12 with a superordinate control unit. In addition, a mobile end device 6 is shown in
The control module 4 is configured, such that it converts itself the electrical potential provided by the multi-wire cable 8 into supply voltages for the control module 4, the sensor 7 and the actuator 3.
The invention contemplates that the control module 4 independently actuates the actuator 3 and that information about the operating state of the blade holder 1 is stored on the control module 4. In addition, a TCP- and/or UDP-based server is provided on the control module 4, so that the information stored on the control module 4, for example about the TCP/IP protocol, is transmittable to the superordinate control unit 5 and to the mobile end device 6. Furthermore, operating states that are to be assumed and parameters of the blade holder 1 from the mobile end device 6 can be stored on the control module 4.
For example, via the mobile end device 6 and the service on the control module 4, a position for the circular blade 2 that is to be assumed can be stored on the control module 4. After the superordinate control unit 5 has released the state to be assumed and transmitted a start signal to the control module 4, the control module 4 independently actuates the actuator 3 by accessing the signals sent by the first sensor 7. During the intake of the operating state, therefore, no communication between the control module 4 and the superordinate control unit 5 must occur. In principal, the cutting tool holder 1 could be operated without the superordinate control unit 5.
The code 10 arranged on the blade holder 1 serves first to enable identification of the blade holder 1 via the second sensor 9 of the mobile end device 6, so that a parameter or operating state of the blade holder 1 to be detected subsequently by the mobile end device 6 can be associated with this blade holder 1. This type of parameter can be the diameter of the circular blade 2, whereby, for example, the original diameter can be detected by the mobile end device 6 by means of the code 10 arranged on the circular blade 2. Thus, in a simple manner, an operator first can identify the corresponding blade holder 1 and then detect the associated parameter for this blade holder 1 and send it to the corresponding control module 4.
In
With the present invention, the operation of a cutting machine 11 is greatly simplified and the precision of the changing of the operation state of the blade holder 1 is increased. The specification incorporates by reference the disclosure of DE 10 2015 108 506.2, filed May 29, 2015.
The present invention is, of course, in no way restricted to the specific disclosure of the specification and drawings, but also encompasses any modifications within the scope of the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102015108506.2 | May 2015 | DE | national |
