• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention describes a control system and method for continuous process machine, the machine comprising an input zone; a means of transport of elements on which to carry out a continuous process; and at least one work station comprising a plurality of work devices. The system comprises a retaining means disposed in the entrance area; an advance sensor to detect the advance of the means of transport; an automation device for the retention means; and a means of communication with the automation device. Thus, the automation device controls the operation of the retaining means from information received from the communication means, from the advance sensor and from the information it has regarding the position of the working devices. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2603431A1
    申请号:ES201630922
    申请日:2016-07-06
    公开日:2017-02-27
    发明作者:Miguel ROIG DUSERM
    申请人:Bodegas Vivanco S L；Bodegas Vivanco Sl；
    IPC主号:
    专利说明:

    DESCRIPTION

    Control system and procedure for continuous process machine.

    Field of the invention 5
    The present invention relates to the field of continuous process machines widely used in industry, and more specifically to the control of said continuous process machines.

    Background of the invention 10
    In many fields of industry it is common to use automatic continuous process machines, for example in the field of food processing, labeling machines, bottling machines, etc. Such machines normally comprise several work stations, for example in the form of a carousel, each of which comprises a plurality of work devices. These machines automatically operate with continuous feed 15 of elements that must undergo a series of operations along the plurality of workstations. The introduction of said elements, the transport of them from one work station to another as well as the operations carried out in each of said work stations are carried out automatically, which provides high production rates.
    However, a failure in one of the work devices present in any of the 20 workstations can cause large production losses, since the products obtained at the end of the process must be examined to discard products that have not been processed correctly.
    Failure detection systems in a continuous process machine are known in the art, such as that disclosed, for example, in CN204514464U. Detecting 25 failures in this type of machines allows to avoid producing products that must be discarded later. However, a breakdown in a work device continues to cause great losses since the machine must be stopped until the breakdown is repaired to avoid obtaining products that must be discarded, as mentioned above, or even cause additional breakdowns elsewhere. of the machine 30
    The downtime of the machine while performing the required maintenance operations can be high, for example in case the maintenance personnel are not in the installation or necessary spare parts are not available.
    Document ES0286885U discloses an introducer for filling-weighers of 35 liquefied gases in carousel-type bottles comprising a plurality of scales
    fillers The introducer has a parking platform between the endless chain and the base of the filling scale for the bottles to be filled that arrive in line. This platform incorporates a removable stop stop that is activated by a sensor operated by a stop provided on the scale itself or on the carousel structure. The activation of said stop is controlled by a presence detector arranged at the scale of the scale in the area occupied by the 5 bottle to be filled, a progressive incoming arm having been provided on the flank of the platform, according to the direction of rotation of the carousel. which conditions and accommodates the bottle in advance when it is pushed by the one that follows it.
    Therefore, the introducer of document ES0286885U provides adequate smoothness and progression in the introduction of the bottles in the corresponding scales of the carousel in the normal operation of the filler, but does not mention any special operation of the filler in the event of a breakdown. somewhere in the filling machine.
    Therefore, there continues to be a need in the art for a simple, easy-to-install system that allows adequate control of the operation of a continuous process machine 15 avoiding complete machine shutdown when a failure occurs in any of the multiple work devices of one of the machine's work stations.

    Summary of the invention
    To solve the aforementioned drawbacks, the present invention discloses, in a first aspect, a control system for continuous process machine. The machine is of the type comprising an entry zone; a means of transporting elements on which to carry out the various operations that make up the continuous process; at least one workstation comprising a plurality of work devices. The control system of the present invention is characterized in that it comprises:
    - a retention means arranged in the entrance area to interrupt the advance of said elements;
    - an advance sensor to detect the advance of the means of transport;
    - an automation device to control the operation of the retention means; and 30
    - a means of communication with the automation device.
    Thus, and as will be detailed further below in this document, the automation device receives through the communication means information concerning a broken work device, receives information from the advance sensor regarding the advance of the transport means and has information concerning the position of the work devices in the workstation. With this information, the automation device controls the
    operation of the retention means to prevent the damaged work device from receiving an item.
    According to a second aspect, the present invention discloses a control process for continuous process machines, the process comprising the steps of:
    - installing a control system according to the first aspect of the invention in a continuous process machine 5;
    - provide the automation device with information on the number of workstations;
    - provide the automation device with information on the number of work devices of each workstation; 10
    - provide the automation device with information on the position of each work device of each machine workstation at the time of commissioning of the control system;
    - provide the automation device with information on the position of the elements at the time of starting the control system; fifteen
    - provide the automation device with information on the progress of the means of transport;
    - provide the automation device with information about the work device (s) in which a fault is detected.
     twenty
    Brief description of the figures
    The present invention will be better understood with reference to the following figures illustrating a preferred embodiment of the invention, provided by way of example, and which should not be construed as limiting the invention in any way.
    Figure 1 is a schematic view of a state-of-the-art bottling machine in which a control system is applied according to the preferred embodiment of the present invention.
    Figure 2 is a detailed view of the entrance area of a state-of-the-art bottling machine in which a control system is applied according to a preferred embodiment of the present invention. 30
    Figure 3 is a detail view of a workstation, specifically a rinser, which is part of a state-of-the-art bottling machine in which a control system is applied according to a preferred embodiment of the present invention.

    Detailed description of preferred embodiments 35
    Next, a preferred embodiment of the system is described herein.
    of the present invention applied to a bottling machine as shown in Figure 1. However, it should be understood that the control system of the present invention can be applied to any other type of continuous process machine, such as food processing, industrial processing machines, labeling machines, corking machines, packaging machines, etc., with rotational, linear operation, etc. having 5 feeding by means of conveyor belt, auger, chains or any other suitable means.
    The bottling machine of Figure 1 comprises a rinsing station (10), a filling station (12) and a corking station (14). Each of said stations (10, 12, 14) comprises a plurality of work devices: rinsing devices (10 ’), filler devices (12’) and plugging devices (14 ’). 10
    The operation of each of said stations and said working devices is known to a person skilled in the art and therefore will not be described in greater detail herein.
    The machine also comprises an entrance area (16) through which the bottles to be subjected to the various operations are introduced along the work stations 15 (10, 12, 14). The bottles are transported through the entrance area (16), and between the work stations (10, 12, 14) to an exit zone (18) on a suitable means of transport, for example a conveyor belt together with a screw auger (20) which also provides an equidistant separation of the bottles from each other in the entrance area, so that the bottles advance through the machine in the direction of the arrows shown in figure 1, from the right side towards the left side.
    The control system comprises a retaining means (not shown in the figure), in particular a stocks, which is a half-moon shaped steel pin installed in the entrance area (16), before the auger (20) . The stud is actuated by a pneumatic cylinder so that it can be moved between an extracted position and a retracted position. Specifically, one end of the stocks is fixed while the other end is connected to the cylinder rod. If the stem comes out, the stocks pivot on its fixed end and get in the way of entering the bottles, preventing their movement (removed position). If a single acting cylinder is used, the rod returns by means of a spring. A double acting cylinder can also be used in which case the rod (and therefore the stocks) will return to its retracted position by the cylinder itself.
    According to an alternative embodiment of the invention, the retaining means consists of an additional auger prior to the auger (20) located in the inlet zone. In normal operation, the additional auger turns at the same speed as the auger (20). However, if a fault is detected in a work device, the additional screw 35 stops working while the screw (20), the conveyor belt and the
    Workstations continue to work. This causes a stop in the bottle feeding. The additional auger turns again once a gap in the feed has been generated, as will be described later in this document. This alternative embodiment may offer greater guarantees than the "stocks" in cases with high processing speeds or with elements to be processed that generate great force in the retention means. The person skilled in the art will understand that the screw can also be applied as a means of retention in the event that there is no screw (20) as a means of transport, so that when it does not work it causes the stop in the feeding of bottles, turning again to allow the bottles to advance as necessary.
    The system also comprises at least one advance sensor to detect the advance of the means of transport. As can be inferred from what is stated herein, the advance of the means of transport implies both the advance of elements and of gaps generated by the means of retention. This advance sensor can be installed in any part of the machine that implies the advance of the means of transport, for example, in a work station, in the auger, or in the reduction motor itself that gives movement to the medium of 15 transport.
    In the event that the means of transport and the work stations have a correlatively related movement with each other, a single advance sensor is sufficient to know the movement of all of them.
    According to a preferred embodiment of the invention shown in Figure 2, the feed sensor 20 is an auger sensor (22) installed in the input zone (16). This sensor detects each turn of the auger screw (20) in the entrance area, each turn corresponding to the space of a bottle. According to the preferred embodiment, the auger sensor is an inductive sensor driven by the passage of an element protruding (24) from the surface of the auger itself. In this case, the protruding element (for example a screw inserted in a threaded hole, made for this purpose) is installed in one of the transverse faces of the auger, so that it rotates in solidarity with the auger, around the longitudinal axis of the same. The auger sensor is fixed to the machine, in front of the transverse face of the auger in which the protruding element has been installed. In this way, the auger sensor detects the passage of the protruding element at each turn of the auger. 30
    According to a preferred embodiment of the invention, the rotation of the auger is correlatively related to the advance of the conveyor belt. Therefore, thanks to the auger sensor, it is possible to know both the rotation of the auger and the advance of the conveyor belt. In this way, this auger sensor acts as an advance sensor, detecting the advance of the means of transport in the entrance area (16). 35
    According to alternative embodiments of the invention, another feed sensor is used as another
    type of sensor adapted to the specific application and to the type of machine on which the control system of the invention is installed and that provide the same function, such as an encoder sensor, artificial vision sensor, etc.
    According to an alternative embodiment of the invention, applicable to the case in which the machine does not have an auger to distance the elements to be processed in an equidistant manner, a timer-sensor is installed in the entrance area. In this case, it is a photoelectric sensor, for example of the light barrier type, reflection on mirror, reflection on object, etc. This photoelectric sensor detects the passage of an element (for example, a bottle) through the entrance area. The timer controls the actuation time of the retention means, so that in the event of a fault being detected, the creation of a gap in the supply is caused, as will be explained later in this document.
    On the other hand, according to the preferred embodiment of the invention, the system comprises a workstation sensor (26) in each workstation. Figure 3 shows a sensor installed in a workstation, specifically in a rinser. That is, the system comprises a rinse station sensor, a filling station sensor and a capping station sensor. These sensors allow to know the exact instantaneous position of each of the work devices of their respective station. Each sensor marks a work device as work device “0”, and allows you to reset the workstation's rotation count. Although additional embodiments of the invention can be conceived that do not comprise said sensors in the workstations, their presence makes it possible to have additional information that allows to guarantee correct information in case of possible failures of the advance sensor. As in the previous case, these are preferably inductive sensors actuated by the passage of an element protruding (24) from the surface of the machine in the area of interest. In this case, the protruding element (for example a screw inserted in a threaded hole, made for this purpose) is installed in a working device, so that it rotates jointly with it, around the axis of rotation of the station corresponding work. The inductive sensor is fixed to the machine, so that it detects the passage of the protruding element at each turn of the work device. However, it is also planned to use other suitable sensor types depending on the machine and the specific application. For example, according to an alternative embodiment, the system comprises an encoder in each workstation instead of inductive sensors.
    According to yet another alternative embodiment of the invention, the system does not have any type of sensor in the workstations to detect the position of each work device.
    The system also comprises an automation device (not shown in the figure), for example a PLC (programmable logic controller), which allows controlling and coordinating the movement of the pin (by means of the pneumatic cylinder) based on information from
    the various sensors as well as information regarding the failure of a work device, as will be described in more detail below in this document.
    Finally, the system comprises a means of communication (not shown in the figure) with the automation device. Said means of communication may be a touch screen, keypad, etc. According to the preferred embodiment of the present invention, said communication means consists of a touch screen suitable for use by an operator who visually detects a fault in a work device.
    A control process for continuous process machine according to the second aspect of the present invention is described below. Specifically, said procedure comprises:
    - installing a control system according to the first aspect of the invention described above in a continuous process machine;
    - provide the automation device with information on the number of workstations;
    - provide the automation device with information on the number of work devices of each workstation; fifteen
    - provide the automation device with information on the position of each work device of each machine workstation at the time of commissioning of the control system;
    - provide the automation device with information on the position of the bottles in the machine (if any) at the time of starting the control system;
    - provide the automation device with information on the progress of the means of transport;
    - provide the automation device with information about the work device (s) in which a fault is detected. 25
    In order to provide the automation device with information on the position of each work device and on the position of the bottles in the machine at the time of starting the control system, any suitable reference can be used, for example which work device of the rinsing station is capturing a bottle, which work device of the filling station is capturing a bottle, if the first bottle is at height 30 of the retention means, etc.
    Since the automation device already knows the exact position of all the working devices of the machine at the time of its start-up and also has information on the progress of the means of transport, that is, it knows how much the machine moves (by for example, by means of the advance sensor or by other information provided by communication between the automation device and the machine on which it is installed),
    Then you can calculate the position of all the working devices of the machine at all times.
    According to the preferred embodiment of the invention, the aforementioned touch screen allows the user to carry out the following control procedure:
    - display and / or enter the number of workstations; 5
    - display and / or enter the number of work devices in each of the work stations;
    - display and / or introduce the current work device in the capture area of each of the work stations (ie work device that is capturing a bottle); 10
    - display and / or introduce the work device that drives the inductive sensor as it passes through each of the work stations;
    - display and / or enter the number of bottles between the retention means and the first workstation;
    - display and / or enter the number of bottles between the first and second work stations;
    - display and / or enter the number of bottles between the second and third workstation; Y
    - display and / or enter the work device (s) in which a fault is detected.
    Thus, in case of failure of a work device, the system according to the preferred embodiment 20 of the present invention operates as follows. An operator detects a fault in the filling device # 5 of the filling station. The operator then communicates to the PLC, by means of the touch screen, that the filling device # 5 is broken and is taken out of service.
    The PLC knows at all times the position of the filling device # 5 thanks to the information received from the auger sensor and the filling station sensor (or, in the embodiment that does not have a filling station sensor, thanks to the information provided on the position of each filling device at the time of system startup).
    Then, the PLC acts on the pin (through the pneumatic cylinder) at the precise moment to interrupt the advance of the bottles and prevent the filling device # 5 from receiving a bottle. Thus, the pneumatic cylinder drives the bolt to the extracted position so that it interrupts the advance of the bottles. When the screw turns (corresponding to the space of a bottle), the auger sensor sends a signal to the PLC that then drives the pneumatic cylinder again to bring the pin to its withdrawn position and allow the bottles to advance again . 35
    In this way there has been a gap in the continuous feeding of bottles to the
    bottling machine This gap assumes that a working device of the rinsing station is empty. Said gap is moved along the bottling machine so that both the filling station and the plugging station will also have an empty work device. The empty filling device in the filling station will correspond to the failed filling device # 5, so that obtaining a bottle at the end of the process to be discarded is avoided, since no bottle passes through the filling device. filling failed.
    As explained above, the person skilled in the art will understand that the gap in the continuous feeding is produced by the action of the automation device on the retention means to interrupt the advance of the elements at the right time, acting again on the medium. of retention to allow the advance of the elements again, once the advance sensor indicates that the space corresponding to an element has been generated.
    The person skilled in the art will understand that in the case that there is only one work station, the parts of the procedure defined above corresponding to the additional work stations will not take place. fifteen
    Therefore, thanks to the control system of the preferred embodiment of the present invention, the bottling machine can continue to operate even if the failure of a working device is detected. This makes it possible to reduce the downtime of the machine due to breakdowns, so that it only stops operating at the appropriate time when the necessary maintenance operations can be performed (for example, when maintenance personnel are found on site or when necessary spare parts are available).
    Although an example of operation of the system according to the preferred embodiment of the present invention has been described in the event that a failure of a working device is detected, it should be understood that the system of the present invention works in a similar manner in the event of failures being detected in Several work devices.
    Although the present invention has been described with reference to a preferred embodiment thereof, the person skilled in the art will understand that modifications and variations can be applied without thereby departing from the scope of protection of the appended claims. For example, although the retention means has been described as a pin operated by a pneumatic cylinder, it should be understood that any other suitable retention means may be applied, for example an auger (as mentioned above), clamps and the like.
    On the other hand, although the use of a programmable logic controller has been described, it should be understood that any other suitable automation device, such as a programmable card, can be applied. 35
    Finally, the use of a touch screen or similar as a means of
    communication to transmit information to the automation device regarding the failure of one or more work devices, so that the manual intervention of an operator is required. However, in a further embodiment of the present invention, said communication means is an automatic communication means that does not require any manual intervention by the operator. In this case, the system also comprises a plurality of 5 sensors for detecting failures in the work devices and the automatic communication means transmits information of the fault sensors of the work devices to the automation device. Said automatic communication means may be of any suitable type, such as an automatic cable or wireless communication means.
    As one skilled in the art will appreciate, the control system described herein provides several advantages over the prior art, such as for example:
    - It is a simple system of easy installation: 1 retention means, 1 advance sensor, (additionally optionally: 1 sensor for each workstation), 1 automation device (for example, 1 PLC), 1 communication medium (for example, touch screen). fifteen
    - It is a completely independent system to the origin machine, therefore it can be incorporated into any existing machine without having to make important modifications in its structure.
    - It is an adaptable and installable system in different types of processing machines, according to the different needs and characteristics of the machine. twenty
    权利要求:
    Claims (23)
    [1]
    1. Control system for continuous process machine, the machine comprising an input zone (16); a means of transporting elements on which to carry out a continuous process; at least one work station (10, 12, 14) comprising a plurality of work devices (10 ’, 12’, 14 ’); characterized in that the control system comprises:
    - a retention means arranged in the entrance area (16) to interrupt the advance of said elements;
    - an advance sensor to detect the advance of the means of transport;
    - an automation device for controlling the operation of the retention means; Y
    - a means of communication with the automation device,
    so that the automation device receives through the communication means information concerning a faulty working device (10 ', 12', 14 '), receives information from the feed sensor information regarding the advance of the transport means, has information 15 referring to the position of the work devices (10 ', 12', 14 ') and controls the operation of the retention means to prevent the damaged work device (10', 12 ', 14') from receiving an item.
    [2]
    2. System according to the preceding claim, characterized in that the retention means interrupts the advance of the elements in an extracted position and allows the advance of the 20 elements in a withdrawn position.
    [3]
    3. System according to claim 2, characterized in that the retention means is a stock.
    [4]
    4. System according to claim 1, characterized in that the retaining means is an auger.
    [5]
    5. System according to claim 1, wherein the machine comprises an auger (20) 25 in the inlet area (16) to provide an equidistant separation of the elements from each other, characterized in that the retention means is a additional screw before the screw (20).
    [6]
    6. System according to any of the preceding claims, characterized in that the advance sensor is an inductive sensor. 30
    [7]
    7. System according to any of claims 1 to 5, characterized in that the feed sensor is an encoder.
    [8]
    System according to any one of claims 1 to 4, characterized in that the advance sensor is a photoelectric-timer sensor.
    [9]
    9. System according to any of claims 1, 2, 3, 4, 5 or 7, wherein the machine 35 comprises an auger (20) in the inlet area (16) to provide a
    equidistant separation of the elements from each other, characterized in that the advance sensor is an auger sensor to detect each turn of the auger screw (20) in the input zone (16).
    [10]
    10. System according to claim 9, characterized in that the auger sensor is an inductive sensor. 5
    [11]
    System according to any of the preceding claims, characterized in that it has a workstation sensor (26) in each of the at least one workstation to detect the instantaneous position of the work devices thereof.
    [12]
    12. System according to claim 11, characterized in that the workstation sensor is an inductive sensor. 10
    [13]
    13. System according to claim 11, characterized in that the workstation sensor is an encoder.
    [14]
    14. System according to any of the preceding claims, characterized in that the automation device is a programmable logic controller (PLC).
    [15]
    15. System according to any of the preceding claims, characterized in that the means of communication with the automation device is a touch screen suitable for use by an operator who visually detects a fault in a work device (10 ', 12', 14 ').
    [16]
    16. System according to any of claims 1 to 14, characterized in that it further comprises a plurality of sensors for detecting faults in the working devices 20 (10 ', 12', 14 ') and the communication means is a communication means automatic between the fault sensors and the automation device.
    [17]
    17. System according to claim 16, characterized in that the automatic communication means is a wireless communication means.
    [18]
    18. System according to any of the preceding claims, characterized in that the 25 elements on which to carry out a continuous process are bottles, and the system is applied to a bottling machine comprising, as work stations, a rinsing station (10), a filling station (12) and a plugging station (14).
    [19]
    19. Control procedure for continuous process machines, the procedure comprising the steps of: 30
    - installing a control system according to any one of claims 1 to 18 in a continuous process machine;
    - provide the automation device with information on the number of workstations;
    - provide the automation device with information on the number of 35 work devices of each workstation;
    - provide the automation device with information on the position of each work device of each machine workstation at the time of commissioning of the control system;
    - provide the automation device with information on the position of the elements at the time of starting the control system; 5
    - provide the automation device with information on the progress of the means of transport.
    [20]
    20. The method according to claim 19, wherein the machine comprises a workstation, characterized in that it comprises the steps of displaying and / or entering the following information in the automation device by means of a communication means:
    - the number of work devices at the workstation;
    - the current work device in the capture area of the workstation;
    - the work device that drives the inductive sensor as it passes through the workstation; and 15
    - the number of elements between the retention means and the workstation.
    [21]
    21. Method according to claim 19, wherein the machine comprises more than one workstation, characterized in that it comprises the steps of displaying and / or entering the following information in the automation device by means of a communication means:
    - the number of work stations;
    - the number of work devices in each of the work stations;
    - the current work device in the capture area of each of the work stations;
    - the work device that drives the inductive sensor as it passes through each of the 25 work stations;
    - the number of elements between the retention means and the first workstation; Y
    - the number of elements between workstations.
    [22]
    22. Control method according to any one of claims 19 to 21, characterized in that it further comprises the step of introducing into the automation device the working device (s) in which a fault is detected.
    [23]
    23. Control method according to claim 22, characterized in that it further comprises the step of controlling the operation of the retention means to prevent the working device (s) in which a fault is detected from receiving an element.
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    同族专利:
    公开号 | 公开日
    ES2603431B2|2017-11-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3856131A|1971-04-07|1974-12-24|Saint Gobain|Loading and conveying apparatus|
    WO1999014154A1|1997-09-17|1999-03-25|Sasib S.P.A.|Method and apparatus for wireless communication of signals in a rotary machine|
    CA2510251A1|2004-06-22|2005-12-22|Labatt Brewing Company Limited|Beverage filling system|
    WO2014060981A1|2012-10-18|2014-04-24|Ferasin Daniele|Mobile unit for bottling wine|
    CN204514464U|2015-01-12|2015-07-29|杭州胄天新能源技术有限公司|A kind of bottled mechanical fault pre-alarming monitoring system|
    法律状态:
    2017-02-21| PC2A| Transfer of patent|Owner name: MIGUEL ROIG DUSERM Effective date: 20170215 |
    2017-11-14| FG2A| Definitive protection|Ref document number: 2603431 Country of ref document: ES Kind code of ref document: B2 Effective date: 20171114 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630922A|ES2603431B2|2016-07-06|2016-07-06|CONTROL SYSTEM AND PROCEDURE FOR CONTINUOUS PROCESS MACHINE|ES201630922A| ES2603431B2|2016-07-06|2016-07-06|CONTROL SYSTEM AND PROCEDURE FOR CONTINUOUS PROCESS MACHINE|
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