专利摘要:
The improvements introduced in the mechanism of drive of a male are applied to a box forming machine of sheet material comprising a plate feeding device (30) driven by a transport servomotor (31) that places one to a flat plates (p) sheet material in an initial position on a molding cavity (32), a male (20) moved by the drive mechanism, which is actuated by a male servomotor (1), to press a portion of the flat plate (p) and insert it into the interior of the molding cavity (32), and a programmable logic controller that is in connection with a male servo motor controller which in turn is in connection with the male servomotor (1) and with a transport servomotor controller which in turn is in connection with the transport servomotor. (Machine-translation by Google Translate, not legally binding)
公开号:ES2586733A1
申请号:ES201530520
申请日:2015-04-17
公开日:2016-10-18
发明作者:Telesforo González Olmos
申请人:Telesforo González Olmos;
IPC主号:
专利说明:

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DESCRIPTION
IMPROVEMENTS INTRODUCED IN THE OBJECT OF THE MAIN PATENT N ° P201331327 FOR “MECHANISM OF OPERATION OF A MALE FOR MACHINE FORMING MATERIAL IN BOXES”
Technique Field
The present invention concerns improvements introduced in a drive mechanism of a male for sheet forming machine, which is the object of the main patent No. P201331327.
The invention is useful in the field of automatic box-forming machines by folding and gluing flat die sheets made of a sheet material, such as for example cardboard sheet, corrugated cardboard sheet, plastic sheet, corrugated plastic sheet , and the like. The flat die plates are provided with weakened lines and cuts defining fins and flaps that, once folded and glued, will form the walls and other elements of the box.
Background of the invention
Automatic box-forming machines are known that comprise a molding cavity, a flat plate feeding device that places one to a flat sheets of sheet material in an initial position on a mouth of the molding cavity, and a male that, when being moved by a drive mechanism in an introduction direction, it presses a portion of the flat plate and inserts it into the molding cavity, thereby causing a bending of different parts of the flat plate in cooperation with different elements of the molding cavity to form the box. Next, the male is moved by the drive mechanism in a direction of extraction out of the molding cavity to a position ready to start a subsequent cycle of box formation.
In this type of known machines, the flat plate feeding device comprises a stacked plate loader and a feed conveyor that takes a flat iron from the loader, for example the flat plate located on the lower level of the stack, and moves it along some glues to the aforementioned initial position on the mouth of the molding cavity. Generally, the feed conveyor comprises a pulley drive chain mounted on pulleys, a drive organ fixed to the drive chain, and an electric motor that rotates one of the pulleys for
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Move the drag chain. It is known that this electric motor that drives the feed conveyor drive chain is a servomotor controlled by control means included in the box forming machine. These control means generally comprise a programmable logic controller (also known by the acronym "PLC"). The servomotor is associated with a servo controller (also known by the English term "driver") connected to the programmable logic controller.
The male drive mechanism described in the main patent No. P201331327 comprises a motor organ that provides a rotating movement and transmission means that transform the rotating movement of the motor organ into a cyclic linear displacement in opposite directions of a drive arm, which is guided with respect to a machine bed. The male is fixed to a distal end of the drive arm. The transmission means comprise a flexible traction element, such as a toothed belt or a chain, fixed to the drive arm and a driving wheel coupled to the flexible traction element, where the driving wheel is driven by the motor organ.
The motor organ includes an electric motor whose turning directions, speeds and operating times are controllable by the mentioned control means included in the box forming machine. Thus, the motor organ is controlled by the control means to cause movements of the male-carrying actuator arm between an extraction limit position, in which the male is outside the molding cavity and faces the mouth of it, and an introductory position in which the male is inside the molding cavity and at a predetermined distance from the mouth.
The control means include sensors that detect the extraction limit position and the insertion limit position of the male. Timers programmed in the programmable logic controller cause the male's motor organ to start and stop with respect to a certain cycle start condition, for example when it is detected that the male reaches its position of extraction limit.
Exposition of the invention
The present improvements introduced in the actuation mechanism of a male have an application in a machine for forming boxes of sheet material comprising a plate feeding device that places one to a flat plates of sheet material in an initial position on a cavity of molding attached to a bench of the
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machine, a male moved by a drive mechanism to press a portion of the flat iron and insert it into the molding cavity. The mechanism of
male drive is driven by a motor organ and the device
ironing is powered by another motor organ.
The box-forming machine also comprises a programmable logic controller or "PLC" that is in connection with said motor organ that drives the control mechanism.
actuation of the male and with said motor organ that drives the device
plate feeding. The male drive mechanism, which is the subject of the main patent No. P201331327, comprises a guided drive arm relative to the bench, the male being fixed at a distal end of the drive arm, a fixed flexible traction element to the drive arm, and a driving wheel coupled to the flexible traction element and rotatably actuated by said motor organ to effect a linear cyclic displacement in opposite directions of the drive arm carried by the male.
In accordance with the present improvements, the motor organ that drives the male drive mechanism is a servo motor, hereinafter referred to as "male servo motor", which is in connection with a servo motor driver or driver, hereinafter referred to as " male servo motor controller ”, and the programmable logic controller of the machine is also in connection with said male servo motor controller which in turn is in connection with said male servo motor.
Preferably, the motor organ that drives the plate feeding device is also a servo motor, hereinafter referred to as "transport servo motor", which is in connection with a servo motor driver or driver, hereinafter referred to as "servo motor controller". transport ”, and the programmable logic controller of the machine is also in connection with said transport servo motor controller which in turn is in connection with said transport servo motor, so that the male servo motor that drives the male drive mechanism It is controlled by the programmable logic controller in coordination with the transport servo motor that drives the plate feeding device.
Optionally, the male servo motor controller is additionally in connection with a servo motor brake, hereinafter referred to as "male servo motor brake", associated with the male servo motor that drives the male drive mechanism, and said transport servo motor controller is additionally in connection with another
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servo motor brake, hereinafter referred to as "transport servo motor brake", associated with the transport servo motor that drives the plate feeding device.
Preferably, the programmable logic controller is connected to a user interface, such as a touch screen or other input and / or data reading device, by means of which an operator can enter operating parameters in the programmable logic controller, display the state of the machine, etc.
The programmable logic controller has a series of inputs and a series of outputs. One or more sensors are connected to the inputs, which provide data related, for example, to operating parameters of one or more elements or devices of the machine, and / or one or more push-buttons by means of which, for example, the general operation of the machine or the operation of one or more systems thereof.
At the outputs of the programmable logic controller, at least the transport servo motor controller of the transport servo motor and the male servo motor controller of the male servo motor are connected through respective contactors. Optionally, one or more additional contactors related to one or more electric motors that drive other systems or devices of the machine are also connected to the outputs of the programmable logic controller. Also optionally, all contactors together are connected to the outputs of the programmable logic controller through a relay.
Additionally, the transport servo motor controller and the male servo motor controller communicate with the programmable logic programmer by means of respective control signal cables, which can be, for example, communication buses, or multifilar cables, or fiber optic cables. .
In an alternative embodiment the plate feeding device is driven by a conventional motor, such as an electric motor, controlled by the programmable logic controller.
By using the male servo motor capable of turning in a controlled manner in both directions of rotation, in combination with the particular male drive mechanism including the guided drive arm relative to the bed and connected to the flexible traction element, You can program any distance of introduction of the male into the molding cavity and any distance of extraction of the male above the molding cavity without the limitation imposed by the upper and lower dead spots in
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the crank and crank mechanisms used in the prior art for male drive.
In addition, the use of the male servo motor to actuate the male's drive mechanism allows to precisely program the speeds of rotation, the directions of rotation, the accelerations and the start and stop times, since a servo motor can work so It continues at any speed between zero and its maximum speed, contrary to what happens with conventional electric motors, which always turn at their nominal speed and only the on and off and the direction of rotation of the motor can be controlled.
Brief description of the drawings
The foregoing and other features and advantages will be more fully understood from the following detailed description of some examples of realization, merely illustrative and not limiting, with reference to the accompanying drawings, in which:
Figs. 1 and 2 are schematic side views illustrating improvements introduced in the object of the main patent No. P201331327 by "drive mechanism of a male for sheet forming machine" according to an embodiment of the present invention, in an extradited position and an entered position, respectively;
Figs. 3 and 4 are schematic side views illustrating improvements introduced in the object of main patent No. P201331327 by "drive mechanism of a male for sheet forming machine" according to another embodiment of the present invention, in an extradited position and an entered position, respectively; and
Fig. 5 is a wiring diagram of several electromechanical and automatic elements that make up the improvements of the present invention.
Detailed description of some examples of realization
Figs. 1 and 2 schematically show a box forming machine of sheet material including a drive mechanism of a male according to an embodiment of the present invention.
The box forming machine of Figs. 1 and 2 comprises a molding cavity 32 fixed to a machine bed, a male 20 arranged in alignment with the cavity of
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molding 32 and moved by an actuation mechanism between an extracted position (Fig. 1) in which the male 20 is outside the molding cavity 32, and an inserted position (Fig. 2) in which the male 20 is inside of the molding cavity 32, and a plate feeding device 30 that places one to a successive flat plates P of sheet material in an initial position on a mouth of the molding cavity 32 (Fig. 1).
When one of the flat plates P has been placed by the plate feeding device 30 on the mouth of the molding cavity 32 (Fig. 1), the male is moved by the drive mechanism to the entered position (Fig. 2 ) so that it presses a portion of the flat plate P and inserts it into the molding cavity 32, thereby causing a bending of parts of the flat plate P in cooperation with different elements of the molding cavity 32 to form the box. Subsequently, the male is moved by the drive mechanism back to the extracted position and the formed box is ejected through a lower opening of the molding cavity 32. These operations are repeated to perform successive boxes forming cycles.
The plate feeding device 30 comprises a plate loader 37 in which a plurality of flat plates P are stacked on top of each other and a feed conveyor 38 having an endless drive chain 33 installed on a drive pulley 34 and a driven pulley 35 and a transport servomotor 31 operatively connected to rotate the drive pulley 34 and move the drive chain 33. Optionally, the transport servomotor 31 is connected to the drive pulley 34 by means of a reducer or a transmission of auxiliary movement (not shown).
The drag chain 33 has a protruding drag one 36 fixed, and is arranged so that it has an upper working section located below the stack of flat plates P of the plate loader 37, an end end adjacent to the cavity of molding 32, and a lower return section.
When the transport servo motor 31 of the plate feeding device 30 is driven, the drive chain 33 moves in a forward direction and the drive one 36 interferes with the flat plate P located at the bottom level of the stack in the plate loader 37 and moves it along some glues (not shown) to the aforementioned initial position on the mouth of the molding cavity 32.
The actuation mechanism of the male 20 comprises an actuating arm 18 at whose distal end the male 20 is fixed, and the male is sized to penetrate tightly into the molding cavity 32. The actuating arm 18 is attached to a
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sliding plate on which skates 15 are attached coupled to respective guide elements 16 supported on a fixed base support 19 relative to the bed. The guide elements 16 guide the movements of the male between the extracted and introduced positions.
In the embodiment shown in Figs. 1 and 2, the drive mechanism of the male 20 further comprises a flexible traction element sinfm 11, which is installed on a driving wheel 10 and a driven wheel 12 located in fixed positions relative to the bed. The drive arm 18 is fixed to a section of the flexible traction element sinfm 11 and a male servo motor 1 is operatively connected to rotate the driving wheel 10 and move the flexible traction element sinfm 11. Optionally, the male servo motor 1 It is connected to the driving wheel 10 by means of a reducer or an auxiliary motion transmission (not shown).
When the male servo motor 1 of the male drive mechanism 20 is actuated to rotate in one direction, the drive arm 18 carrying the male 20 is moved in an introduction direction to a desired introduction limit position (Fig. 2) in that the male 20 is inside the molding cavity 32, and when the male servomotor 1 is actuated to rotate in an opposite direction, the actuating arm 18 carrying the male 20 is moved in an opposite direction of extraction until a desired extraction limit position (Fig. 1) in which the male 20 is outside the molding cavity 32.
Figs. 3 and 4 schematically show a box forming machine of sheet material including a male drive mechanism according to another embodiment of the present invention, which only differs from that described above in relation to Figs. 1 and 2 in which the flexible traction element is a flexible traction element of finite length 111 having opposite ends fixed to respective opposite ends of the drive arm 118 and an intermediate portion coupled to a driving wheel 110 and a pair of wheels crazy 113 installed in fixed positions with respect to the bench. A male servomotor 101 is operatively connected to rotate the drive wheel 110 and move the flexible traction element of finite length 111. Optionally, the male servomotor 101 is connected to the drive wheel 110 by means of a reducer or a transmission of auxiliary movement (not shown).
In both embodiments, the male servomotor 1; 101 and the transport servomotor 31 are controlled in a coordinated manner by control means included in the box-forming machine.
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Fig. 5 shows a diagram illustrating an embodiment of the control means, which includes a programmable logic controller 50 provided with a user interface 58, such as a touch screen, by means of which an operator can enter operating parameters desired in the programmable logic controller 50, display the status of the machine, etc.
The programmable logic controller 50 has inputs 51 to which a plurality of sensors 53, 54, 55 are connected, such as for example a sensor 53 for detecting a predetermined position of the drag one 36 in the plate feeding device 30 , a sensor 54 to detect a maximum extraction position of the male 20, or a sensor 55 to detect a maximum introduction position of the male 20, and a plurality of pushbuttons 56, 57, such as a start-up push button, a push button emergency stop, etc. Thus, through inputs 51, the programmable logic controller 50 receives information regarding different operating parameters of the machine.
In addition, the programmable logic controller 50 has outputs 52 to which a plurality of machine actuators are connected, including the transport servo motor 31 and the male servo motor 1; 101, as well as an electric compressor motor 65 and an electric vacuum pump motor 66 that drive a compressor and a vacuum pump, respectively, which are part of other systems (not shown) of the box-forming machine. These actuators are connected to respective contactors 60, 61, 62, 63 through a relay 59. However, relay 59 is optional.
One of said contactors 60 is connected to a transport servo motor controller 67, which in turn is connected to the transport servo motor 31 of the plate feeding device 30. Another of the contactors 61 is connected to a male servo motor controller. 68, which in turn is connected to the male servomotor 1; 101 of the male drive mechanism 20.
In the state of the art, two contactors are used to control the conventional motor drive organ of the male since the male drive motor organ must rotate in both directions of rotation during each case formation cycle, while the servomotor of transport 31 always rotates in the same direction, so that each of the two contactors associated with the drive motor of the male 1; 101 is dedicated to one of the two directions of rotation of the drive motor of the male 1; 101.
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However, with the incorporation of male servo motor 1; 101 replacing the conventional motor organ, a single contactor suffices for the control of the male servomotor 1; 101 since in the servo motors the direction of rotation is treated as a single control parameter.
Additionally, the male servo motor controller 68 is in connection with a male servo motor brake 70 associated with the male servo motor 1; 101, and the transport servo motor controller 67 is in connection with a transport servo motor brake 69 associated with the transport servo motor 31. However, it should be noted that the male servo motor brake 70 and the transport servo motor brake 69 They are optional.
The transport servo motor controller 67 of the transport servo motor 31 and the male servo motor controller 68 of the male servo motor 1; 101 are communicated with the programmable logic controller 50 through respective control signal cables 71, 72, which may be, for example, communication buses, multi-wire cables, or fiber optic cables.
Generally, the programmable logic controller 50 also has connected to its outputs a series of relays (not shown) that open and close electrovalves of tail injectors of a glue application device (not shown) arranged to apply glue on the plate flat P before it is introduced into the molding cavity 32 by the male 20, 120, and solenoid valves of dynamic fluid actuators (not shown) that fold additional parts of the flat plate P before it has It has been introduced into the mold cavity 32.
Obviously, these tail injectors and dynamic fluid actuators, as well as the aforementioned electric motors of compressor 65 and vacuum pump 66, are optional and can be omitted in those cases in which the box-forming machine does not use such systems. Also, the control means may optionally include other contactors and / or relays in connection with other electric motors or actuators associated with other systems of the box-forming machine.
At least the programmable logic controller 50, the transport servo motor controller 67, the transport servo motor 31, the male servo motor controller 68, the male servo motor 1; 101, as well as the electric motors of compressor 65 and vacuum pump 66 are fed individually from an electrical network through corresponding connections not shown in Fig. 5.
By virtue of the present improvements, the programmable logic controller 50 precisely controls the movements of the male drive mechanism 20 in coordination with the movements of the plate feeding device 30.
权利要求:
Claims (10)
[1]
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1. - Improvements introduced in the object of the main patent No. P201331327 by "mechanism
for actuating a male for sheet forming machine of boxes ”, where said box forming machine comprises a plate feeding device (30) driven by a transport motor organ (31) which places one by one
flat sheets (P) of sheet material in an initial position on a cavity of
molding (32) fixed to a bench, a male (20, 120) moved by a male drive mechanism including a male motor organ (1; 101) to press a portion of the flat plate (P) and insert it inside of the molding cavity (32), and a programmable logic controller (50) which is in connection with said transport motor organ (31) and said male motor organ (1; 101), wherein said male drive mechanism comprises a driving arm (18, 118) guided with respect to said bench, the male (20, 120) being fixed at a distal end of said driving arm (18, 118), a flexible traction element (11, 111) fixed at the arm of
drive (18, 118), and a driving wheel (10, 110) coupled to said element of
flexible traction (11, 111) and rotatably actuated by said male motor organ (1; 101) to effect a cyclic linear displacement in opposite directions of the actuating arm (18, 118), characterized in that said male motor organ (1 ; 101) is a male servomotor (1; 101) which is in connection with a male servo motor controller (68) connected in turn to said programmable logic controller (50).
[2]
2. - Improvements according to claim 1, characterized in that said transport motor organ (31) is a transport servo motor (31) which is in connection with a transport servo motor controller (67) connected in turn to said programmable logic controller (fifty).
[3]
3. - Improvements according to claim 2, characterized in that said male servo motor controller (68) is in connection with a male servo motor brake (70) associated with the male servo motor (1; 101) and said servo motor controller of Transport (67) is in connection with a transport servo motor brake (69) associated with the transport servo motor (31).
[4]
4. - Improvements according to claim 1, 2 or 3, characterized in that the programmable logic controller (50) is connected to a user interface (58).
[5]
5. - Improvements according to claim 4, characterized in that said user interface (58) is a touch screen.
[6]
6. - Improvements according to claim 1, 2 or 3, characterized in that a plurality of sensors (53, 54, 55) and / or pushbuttons (56, 57) are connected to inputs (51) of the programmable logic controller (50 ).
[7]
7. - Improvements according to claim 2 or 3, characterized in that the transport servo motor controller (67) of the transport servo motor (31) and the transport controller
Male servo motor (68) of the male servo motor (1; 101) are connected to outputs (52) of the programmable logic controller (50) through respective contactors (60, 61).
[8]
8. - Improvements according to claim 7, characterized in that said contactors (60, 61) 10 are connected to said outputs (52) of the programmable logic controller (50) through
a relay (59).
[9]
9. - Improvements according to any one of claims 2 to 8, characterized in that the transport servo motor controller (67) of the transport servo motor (31) and the male servo motor controller (68) of the male servo motor (1; 101) are
15 communicated with the programmable logic controller (50) via respective control signal cables (71, 72).
[10]
10. - Improvements according to claim 1, characterized in that said transport motor organ (31) is an electric motor.
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同族专利:
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引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
ES2844981A1|2020-01-22|2021-07-23|Telesforo Gonzalez Maqu Slu|ADJUSTABLE BOX FORMING MACHINE WITH MALE DRIVE MECHANISM |
ES2864730A1|2020-03-05|2021-10-14|Telesforo Gonzalez Maqu Slu|FORMING MACHINE FOR NESTING CARDBOARD BOXES OF DIFFERENT SIZES BY GLUING AND BENDING FLAT SHEETS |
ES2795099B2|2020-05-07|2021-04-19|Telesforo Gonzalez Maqu Slu|METHOD AND MACHINE FOR FORMING CARDBOARD BOXES BY GLUING, COMPUTER PROGRAM, AND COMPUTER-READABLE DEVICE THAT HAS STORED SAID PROGRAM|
法律状态:
2016-11-22| PC2A| Transfer of patent|Owner name: TELESFORO GONZALEZ MAQUINARIA SLU Effective date: 20161116 |
2017-01-24| GD2A| Contractual licences|Effective date: 20170124 |
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优先权:
申请号 | 申请日 | 专利标题
ES201530520A|ES2586733B1|2015-04-17|2015-04-17|Improved drive mechanism for a male for sheet forming machine|ES201530520A| ES2586733B1|2015-04-17|2015-04-17|Improved drive mechanism for a male for sheet forming machine|
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